阅读说明：本技术 包括可运动的筛网体的用于废水处理的分离器 (Separator for waste water treatment comprising a movable screen body ) 是由 P·克兰佩 于 2019-07-31 设计创作，主要内容包括：本发明涉及一种用于使纤维状物质(2)从废水(3)中分离的分离器设备(1),所述分离器设备包括：壳体(4),壳体具有用于废水(3)的至少一个入口(20)、用于滤液的至少一个第一出口(30)和用于纤维状物质(2)的至少一个第二出口(36)；和中空的至少一个筛网体(6),筛网体布置在壳体(4)中；其中,入口(20)通入到筛网体(6)的内部,并且第一出口(30)布置在位于壳体(4)与筛网体(6)之间的中间空间(9)中。分离器设备(1)的特征在于,所述至少一个筛网体(6)可运动地布置在壳体(4)中并且与用于使筛网体(6)运动的驱动装置(40)耦联。此外,本发明涉及一种方法。(The invention relates to a separator device (1) for separating fibrous material (2) from waste water (3), comprising: a housing (4) having at least one inlet (20) for waste water (3), at least one first outlet (30) for filtrate and at least one second outlet (36) for fibrous material (2); and at least one hollow screen body (6) arranged in the housing (4); wherein the inlet (20) opens into the interior of the screen body (6) and the first outlet (30) is arranged in an intermediate space (9) between the housing (4) and the screen body (6). The separator device (1) is characterized in that the at least one screen body (6) is movably arranged in the housing (4) and is coupled to a drive device (40) for moving the screen body (6). Furthermore, the invention relates to a method.)

1. A separator device (1) for separating fibrous matter (2) from waste water (3), the separator device comprising:

-a housing (4) having at least one inlet (20) for waste water (3), at least one first outlet (30) for filtrate and at least one second outlet (36) for the fibrous material (2); and

at least one hollow screen body (6) arranged in the housing (4);

wherein the inlet (20) opens into the interior of the screen body (6) and the first outlet (30) is arranged in an intermediate space (9) between the housing (4) and the screen body (6),

characterized in that the at least one screen body (6) is movably arranged in the housing (4) and is coupled with a drive device (40) for moving the screen body (6).

2. A separator apparatus as claimed in claim 1, wherein the screen body (6) has a central axis (a).

3. A separator apparatus (1) as claimed in claim 2, wherein the screen body (6) is at least partly moved, preferably completely, perpendicular to the centre axis (a) in operation.

4. A separator apparatus (1) as claimed in claim 2 or 3, wherein the screen body (6) rotates at least partly around the rotation axis (R) when in operation.

5. A separator apparatus (1) as claimed in any one of the preceding claims 2 to 4, wherein the screen body (6) is substantially non-rotatable about the central axis (A).

6. A separator device (1) as claimed in any preceding claim, wherein the drive means (40) has an eccentric (50) and the screen body (6) is rotatably supported on the eccentric (50).

7. A separator device (1) according to any of the preceding claims, wherein the central axis (A) is oriented substantially vertically in operation.

8. A separator apparatus (1) as claimed in any one of the preceding claims 3 to 7, wherein the central axis (A) of the screen body (6) is offset parallel to the axis of rotation (R) by an eccentric spacing (E).

9. A separator apparatus (1) as claimed in any one of the preceding claims, wherein the central axis (A) of the screen body (6) is inclined with respect to the axis of rotation (R).

10. A separator apparatus (1) as claimed in claim 9, wherein the screen body (6) performs a rocking motion when in operation.

11. A separator device (1) as claimed in claims 5 and 10, wherein the swinging movement of the screen body (6) is a movement superimposed by a circular orbital movement and an opposite lifting movement, the circular orbital movement and the lifting movement being phase-shifted from each other.

12. The separator device (1) according to claim 11, wherein the phase shift between the circular orbital movement and the relative lifting movement has a value in the range of 5 ° to 180 °, preferably in the range of 45 ° to 135 °, particularly preferably 90 °.

13. A separator device (1) as claimed in claim 10, wherein the screen body (6) is coupled to the drive means (40) by means of an articulation.

14. A separator apparatus as claimed in any preceding claim, wherein the screen body (6) is substantially cylindrical.

15. A separator apparatus as claimed in any preceding claim, wherein the screen body (6) is substantially conical.

16. A separator apparatus as claimed in any preceding claim, wherein the drive means (40) has a motor (42) and a drive shaft (44) extending into the housing (4) and coupled with the at least one screen body (6) for rotationally driving the screen body (6).

17. A separator apparatus as claimed in any preceding claim, wherein a squeezing device (59) is provided within the screen body (6), the squeezing device being configured for, in operation, changing the pitch (P) relative to the screen body wall (14) for squeezing the fibrous material (2) towards the screen body wall (14).

18. A separator device as claimed in claim 17, wherein the squeezing means (59) has a rod-shaped or tube-shaped squeezing body (60).

19. A separator apparatus as claimed in claim 17, wherein the pressing device (59) has a conical pressing body (60).

20. A separator apparatus as claimed in any one of claims 18 or 19, wherein the press body (60) is freely movable within the screen body (6).

21. A separator apparatus as claimed in any one of claims 18 or 19, wherein the press body (60) is positively guided or positionally fixed within the screen body (6).

22. A separator device as claimed in claim 21, wherein the press body (60) is fixed on a first housing side (118) of the housing (4) opposite the drive means.

23. A separator device as claimed in claims 4 and 21 or 4 and 22, wherein the pressing body (60) extends along the rotation axis (R).

24. A separator apparatus as claimed in claim 22 or 23, wherein the press body (60) extends into the screen body (6) in a range of about 20% to 100%, preferably in a range of 50% to 100%, particularly preferably in a range of 70% to below 100% of a length (L1) of the screen body (6) measured between a first end side (80) of the screen body (6) arranged proximally relative to the drive means (40) and a second end side (82) of the screen body (6) opposite the first end side (80).

25. A separator apparatus as claimed in any preceding claim, wherein the screen body (6) has a mesh size of 10 to 300 μ ι η.

26. A separator apparatus (1) as claimed in any preceding claim, wherein the second outlet (36) is connected to the screen body (6) via a flexible outlet (122).

27. A separator apparatus (1) as claimed in claims 5 and 26, wherein the flexible lead-out (122) fixes the screen body (6) in a relatively non-rotatable manner around the centre axis (a).

28. A separator apparatus (1) as claimed in claim 26 or 27, wherein said flexible outlet portion (122) is in full face sealing connection with said screen body (6).

29. A separator device (1) according to any of the preceding claims 26-28, wherein the flexible lead-out (122) is connected with a second end side (82) of the screen body (6), which is opposite to a first end side (80) of the screen body (6) arranged proximally with respect to the drive means (40).

30. A separator apparatus (1) as claimed in any one of the preceding claims 26 to 29, wherein the flexible outlet portion (122) has an outlet hose (124) connected to the screen body (6) on a first end (126).

31. A separator apparatus (1) as claimed in claim 30, wherein a second end (128) of the outlet hose (124) is connected with the housing (4) for substantially non-rotatably fixing the screen body (6).

32. Separator device (1) according to one of the preceding claims 22 to 24 and one of the claims 26 to 31, wherein the press body (60) is arranged at least partially within the flexible outlet (122) and forms an outlet channel (132) together with the flexible outlet (122).

33. A separator apparatus (1) as claimed in any one of the preceding claims, wherein said inlet (20) is connected with a screen body interior space (97) of said screen body (6) via a flexible supply (96).

34. A separator apparatus (1) as claimed in claim 33, wherein said flexible supply (96) is in full sealing connection with said screen body (6).

35. A separator device (1) as claimed in claim 33 or 34, wherein the flexible supply (96) is connected with a first end side (80) of the screen body (6), which first end side is arranged proximally with respect to the drive means (40).

36. A separator apparatus (1) as claimed in claim 35, wherein a drive shaft (44) of the drive means (40) extends at least partially through the flexible supply (96).

37. A separator device (1) as claimed in any one of claims 33 to 36, wherein the flexible supply (96) has at least one supply hose.

38. A separator device (1) according to claim 37, wherein the flexible supply portion (96) has a first supply hose (98) and a second supply hose (112), and the second supply hose (112) extends at least partly inside the first supply hose (98) for forming a supply channel (114).

39. A separator apparatus (1) as claimed in claim 38, wherein the first supply hose (98) is sealingly connected over the circumference of the screen body (6) and the second supply hose (112) is sealingly connected to a shoulder (116) of the screen body (6).

40. A separator apparatus (1) as claimed in any one of the preceding claims, further having a transfer pump for transferring the waste water (3) under pressure into the screen body (6).

41. A separator device as claimed in claim 40, wherein the first outlet (30) has a latching tap (34) configured for adjusting a first discharge pressure for the filtrate.

42. A separator device as claimed in claim 40 or 41, wherein the second outlet (36) has a shut-off valve (39) configured for adjusting a second discharge pressure for the fibrous material (2).

43. A separator apparatus as claimed in claims 41 and 42, wherein the first discharge pressure is lower than the second discharge pressure.

44. A separator apparatus as claimed in any one of the preceding claims 2 to 32 or 40 to 43, having an inlet pipe (22) forming the inlet (20) extending substantially along the axis of rotation (R) to the interior of the screen body (6).

45. A separator apparatus as claimed in claims 18 and 44 or 19 and 44, wherein the inlet tube (22) forms the press body (60).

46. A separator apparatus as claimed in any preceding claim, wherein the drive means (40) has an oscillating drive mechanism (72) for driving the screen body (6) in oscillation.

47. A separator apparatus as claimed in any preceding claim, wherein two or more screen bodies (6) are provided.

48. A separator apparatus as claimed in claims 4 and 47, wherein the two or more screen bodies (6) are arranged such that the axis of rotation (R) is outside the screen bodies (6).

49. A method for separating fibrous substances (2) from waste water (3), preferably in the case of using a separator device (1) according to any one of the preceding claims, the method comprising at least the steps of:

-feeding the fibre-containing waste water (3) into a hollow screen body (6);

-moving the screen body (6);

-filtering the waste water (3) on the screen body (6);

-discharging filtrate from an intermediate space (9) between the screen body (6) and the housing (4);

-discharging the fibrous material (2) from the inside of the screen body (6).

50. A method according to claim 49, wherein the screen body (6) has a central axis (A).

51. Method according to claim 50, wherein the movement is carried out at least partially, preferably completely, perpendicularly to the central axis (A).

52. The method of claim 49 or 50, wherein the motion comprises a rocking motion.

53. The method of any one of claims 49-51, wherein the motion comprises an oscillation.

54. The method of any one of claims 49-53, further comprising:

-filtering the waste water (3) on a first section (6b) of the screen body (6) which follows with respect to the direction of movement; and is

-backwashing the screen body (6) in a second section (6a) of the screen body (6) which is forward with respect to the direction of movement.

55. The method of any one of claims 49-54, further comprising:

-pressing the fibrous mass (2) by means of a pressing body (60) on the inner side of the screen body wall (14) of the screen body (6).

56. A method according to any of the preceding claims 49-55, wherein the screen body (6) is relatively non-rotatable around the centre axis (A).

Technical Field

The invention relates to a separator device for separating fibrous material from waste water, said separator device comprising: a housing having at least one inlet for wastewater, at least one first outlet for filtrate and at least one second outlet for fibrous material; and at least one hollow screen body arranged in the housing; wherein the inlet opens into the interior of the screen body and the first outlet is arranged in an intermediate space between the housing and the screen body. Furthermore, the invention relates to a method for separating fibrous substances from waste water, preferably using a separator device of the type described above.

Background

Separator devices of the above-mentioned type are used for filtering waste water, such as water from sewage purification plants, and also liquid manure. One problem here is that the screen body is rapidly attached by the fibrous material, which causes: the fibrous material must be backwashed. The fibrous material should then be removed during or after the filtration process. The more the fibrous mass can be dewatered, the higher the enrichment of nutrients and filter residues or sludge and therefore the greater the degree of dewatering.

DE 2757746, for example, discloses a separator device in which a cylindrical screen body is oriented substantially horizontally and through which liquid can pass radially from the outside to the inside. To achieve backwash, vanes are provided inside the screen body which are closely guided along the inner surface of the screen body in order to apply a liquid pulse through the wall of the screen body to detach the fibrous material from the screen body.

DE 69003110T 2 discloses a vertically oriented separator comprising two screen bodies concentrically embedded in each other. Between the inner and outer screen bodies, a vane is arranged, which rotates and moves along between the inner and outer screen bodies in order to apply pulses again and thus to realize a backwash. The vane is basically configured as a vane.

WO 200226348 a1 discloses a separator modified in comparison thereto. The separator disclosed therein comprises a stationary screen body which is substantially cylindrical. The screen body is embedded in the housing. The inlet opens into the screen body from above. An outlet for the fibrous material is arranged on the lower end of the screen body, and an outlet for the filtrate is arranged radially to the screen body. A drive means is provided for moving the barrel within the screen body so as to compress the fibrous material against the radially inner surface of the screen body. The backwashing takes place here at best indirectly and does not permanently prevent the screen body from adhering.

Two separators are known from WO 2011002317 a1 and WO 2016009357 a1, which are placed horizontally. Inside the screen body, screws or pressing elements are arranged, respectively, which on the one hand can convey the liquid along a horizontal line and on the other hand can press the fibrous material against the radially inner surface of the screen body in order to reduce the water content. In these apparatuses, the fibers are therefore separated from the liquid in a first step by means of an extrusion screw, in order then to filter out smaller particles in a second step by means of a filter.

In addition to such separators (which operate with a substantially cylindrical screen), there are also separators which operate with a substantially planar oscillating screen. Such a solution is disclosed in DE 102016008266 a 1. In addition to the obliquely arranged wobble screen, which transports the filter residue to the outlet as a result of the wobbling movement, this solution has a replaceable screen attachment which can be arranged on the wobble screen. The transport of the filter residue to the outlet functions well, however the construction is complicated and many individual parts are required.

In general, the known separators are structurally complex and do not generally allow for an efficient backwash. Furthermore, a two-stage process using an extrusion screw and a downstream filter is costly and inefficient.

Disclosure of Invention

The object of the present invention is to provide a separator device of the type mentioned at the outset, which is improved with regard to the problems of the prior art. In particular, the separator device should be simple to design, achieve effective backwash and be able to operate continuously.

The invention solves the object in a separator system of the type mentioned at the outset in that the at least one screen body is movably arranged in the housing and is coupled to a drive for moving the screen body.

Contrary to the prior art, it is within the scope of the invention not to use a fixedly arranged screen body, but rather a movable screen body. The screen body is moved by means of the drive device, whereby the liquid within the screen body and outside the screen body is also set in motion, so that a backflushing of the screen body can be achieved depending on the direction of motion. The housing preferably forms a receptacle for a screen body, which can be arranged in the housing.

Additionally, a further separator housing may be provided, which encloses the entire apparatus.

Different connections are provided for supplying or withdrawing respective liquid and/or solid materials. The inlet is used for introducing the waste water into the interior of the screen body so as to bring the waste water containing the fibrous substances. The filtrate is then led through a first outlet arranged in an intermediate space between the screen body and a housing forming a container or tank. A further outlet is provided for the fibrous material. The fibrous mass is usually not completely dried but instead exists in the form of a sludge that can be removed from the inside of the screen body, for example by suction.

Preferably, the screen body has a central axis. Particularly preferably, the screen body moves at least in sections, preferably completely, perpendicular to the central axis during operation. The screen body is preferably substantially barrel-shaped or tubular and preferably cylindrical or conical. Other shapes are also contemplated. The screen body preferably has a screen body wall which circumferentially surrounds the central axis in the radial direction. The screen body wall, preferably a cylinder wall, forms the screen surface, while one or both end sides may be closed. However, the screen body can likewise be oval, rectangular or polygonal in cross section, or have any other shape. The central axis is preferably an axis of symmetry and the screen body is preferably rotationally symmetrical. The central axis preferably extends substantially parallel to the screen surface.

By the movement perpendicular to the central axis, the liquid inside and outside the screen body is set in motion and a flow is generated through the screen body wall, which flow is also at least partially perpendicular to the central axis. Thereby, on the one hand, the liquid containing the fibrous material is pressed against the screen body wall inside the screen body, whereby the liquid is pressurized. On the other hand, the filtrate is also pressed from the outside towards the screen body wall, so that a backflushing of the screen body takes place.

Preferably, the screen body rotates at least in sections about the axis of rotation during operation. The rotation is a particularly simple movement and is responsible for achieving a backwash on each section of the screen body. The screen body is preferably not rotated about its central axis, but about a rotational axis which is arranged parallel to the central axis at an eccentric distance. The axis of rotation may for example be the central axis of the housing or the axis of rotation of the output shaft of the drive means. The eccentric spacing is preferably in the range of greater than 0mm to 15mm, preferably greater than 0mm to 10mm, greater than 0mm to 5mm, greater than 0mm to 3mm, greater than 0mm to 1 mm. Values greater than 0mm are in embodiments either 0.1mm, 0.2mm or 0.5 mm. But the value may also be a higher value.

In a preferred embodiment, the screen body is substantially non-rotatable about the central axis. Thus, rotation of the screen body about its central axis is substantially avoided. Preferably, the rotation is about an axis offset from the central axis. For example, the screen body is relatively non-rotatable about its central axis and can rotate or move on a circular orbit about an axis of rotation. Preferably, the axis of rotation is parallel to the central axis or encloses an angle with the central axis. It is to be understood that the essentially non-rotatable screen body can perform a slight rotation about the central axis, wherein the maximum angle of rotation of the rotation about the central axis has a value of less than or equal to 90 °, preferably less than or equal to 45 °, particularly preferably less than or equal to 20 °, further preferably less than or equal to 10 °.

By means of a rotational movement about the axis of rotation, the waste water received in the screen body can be set into rotation and the rotation is at least partially transmitted to the screen body. It is therefore preferred that the separator device has a fixing means which is fixed to the screen body and which is configured for fixing the screen body substantially non-rotatably relative to the central axis. The fixing means preferably allow a translational movement of the screen body on a track, in particular a circular track. By means of the non-rotatable fastening, it is advantageously achieved that the waste water is separated uniformly by means of the screen body wall.

Preferably, the drive device has an eccentric, wherein the screen body is rotatably mounted on the eccentric. The rotational axis of the eccentric is configured to be offset from the central axis of the screen body. The eccentric is preferably connected to the drive shaft of the drive device. The screen body is then preferably mounted on the eccentric eccentrically to the drive axis of the drive shaft. Preferably, the drive shaft is directly driven by means of a motor. Furthermore, the drive shaft can preferably also be driven by means of a belt drive or a chain drive. The rotatable support allows the screen body to rotate relative to the eccentric. Preferably, the screen body is movable on a circular track by means of an eccentric and substantially maintains its orientation about the central axis. The screen body maintains its orientation about the central axis when the datum section of the screen body wall is aligned with the corresponding datum section of the housing throughout the rotational movement. It can also be provided that the screen body moves on a circular path and rotates about the central axis in opposite or the same direction of rotation. The orientation of the screen body is preferably changed periodically. Preferably, the screen body is mounted on the eccentric via at least one rolling bearing. It may also be provided that the screen body is supported via at least one sliding bearing. The screen body preferably has a screen shaft which is supported on the eccentric. Likewise, the screen body can preferably also be supported on an eccentric pin.

Particularly preferably, the central axis is oriented substantially vertically during operation. Thereby, filtration as well as back flushing can be achieved without the need for an extrusion screw or the like. The liquid can be driven through the screen body wall by gravity and additional elements can be dispensed with.

In a preferred embodiment, the central axis of the screen body is inclined relative to the axis of rotation. Preferably, the projection of the central axis or the central axis encloses an angle of inclination with the axis of rotation, which angle of inclination has a value in the range of more than 0 ° to 20 °, preferably more than 0 ° to 15 °, particularly preferably 5 ° to 15 °.

The inclination angle is a smaller intersection angle among intersection angles formed between the rotation axis and the central axis. Preferably, the axis of rotation is oriented vertically and the screen body is inclined with respect to the vertical, so that the screen body wall is unevenly loaded with wastewater due to gravity. The unevenly loaded waste water can improve the backwashing of the screen body wall and/or prevent the screen body wall from adhering. It may also be preferred that the central axis of the screen body is oriented vertically and that the axis of rotation is inclined with respect to the vertical.

Preferably, the screen body performs a rocking motion when in operation. The rocking motion is a rotation of the screen body about an axis of rotation which is at least partially spaced apart from the central axis, wherein no rotation about the central axis is carried out. Preferably, the central axis intersects the axis of rotation in an axis intersection point during the rocking motion. Particularly preferably, the position of the intersection between the axis of rotation and the central axis is constant during the rocking motion. The axis intersection point is preferably arranged on a first end side of the screen body or on a second end side of the screen body opposite the first end side, which is arranged on the proximal side with respect to the drive. The waste water to be separated is advantageously set into rotation and/or swirled by a rocking motion, so that the separation effect is enhanced and/or the screen body is prevented from being attached by fibrous substances. Furthermore, the central axis and the rotational axis of the screen body are preferably arranged offset to one another. The angle of inclination is then determined between the axis of rotation and the projection of the central axis onto the axis of rotation. Preferably, the central axis of the screen body extends in eccentric planes spaced apart perpendicular to the axis of rotation with an eccentric spacing. Particularly preferably, the eccentric distance is constant during operation.

In a preferred embodiment, the swinging movement of the screen body is a superimposed movement of a circular orbital movement and an opposite lifting movement, wherein the circular orbital movement and the opposite lifting movement are phase-shifted with respect to each other. The relative lifting movement is produced by a staggered inclination of the central axis relative to the axis of rotation and a non-rotatable arrangement of the screen bodies. The screen body rotates in operation on a circular track about an axis of rotation. By means of the non-rotatable arrangement, the screen body rotates relative to the drive during the circulation on the circular path, wherein the orientation in the global reference frame is substantially constant. The screen body wall describes a relative lifting movement relative to a housing wall surrounding the screen body. The smallest circumferential distance between the screen body wall and the surrounding housing wall is thereby displaced along the axis of rotation. The lifting movement promotes filtration and/or enables backwash of the screen body wall. Preferably, the valve body is inclined such that it follows the rotation. In this case, a first end face of the screen body, which is arranged on the proximal side with respect to the drive, preferably follows a second end face opposite the first end face during the circulation on the circular path. Preferably, the central axis of the screen body describes a cylindrical circumference in operation. Preferably, however, the first end of the screen body precedes the second end.

Preferably, the phase shift between the circular orbital movement and the relative lifting movement has a value in the range from 5 ° to 180 °, preferably in the range from 45 ° to 135 °, particularly preferably 90 °. Preferably, the phase shift is selected such that, during operation, a maximum acceleration and a maximum relative speed of the lifting movement occur simultaneously at a section of the screen body wall which is arranged on the proximal side relative to the housing wall.

In a preferred embodiment, the screen body is coupled to the drive by means of an articulated body. Particularly preferably, the articulation is arranged between the screen body and the eccentric. The articulated body is preferably constructed torsionally rigid and enables a tilting of the central axis of the screen body, so that it is substantially non-rotatable relative to one another about the central axis during the rocking movement. Preferably, the articulation body is at least partially made of an elastomeric material.

In a preferred embodiment, the drive device comprises a motor and a drive shaft extending into the housing, which drive shaft is coupled with the at least one screen body for rotationally driving the screen body. The drive shaft can be guided directly or indirectly into the housing. Preferably, a transmission mechanism is arranged between the motor and the drive shaft. The motor can be designed in particular as an electric motor.

In a further preferred embodiment, a pressing device is provided in the screen body, which pressing device is designed to change the distance relative to the screen body wall during operation for pressing the fibrous article against the screen body wall. The pressing device is used to compress and dewater the fibrous material on the screen body wall and in this way to promote a "wringing" function and/or a "wringing" function. This can realize a high degree of dewatering of the fibrous material.

In a preferred embodiment, the pressing device has a rod-shaped or ring-shaped pressing body. Preferably, the rod-shaped or annular press body is oriented with its longitudinal axis substantially parallel to the central axis of the screen body, so that the rod-shaped or annular press body can extend substantially over the full axial extension of the screen body wall. Hereby it is achieved that the squeezing or wringing function is achieved along the entire axial length of the screen body wall and that an effective dewatering of the fibrous material is achieved. In this case, it is not necessary, but preferred, for the rod-shaped or annular extruded body to be cylindrical. There may also be embodiments in which an oval cross section of the press body is advantageous.

In this case, it can be provided that the press body can move freely in the screen body. The screen body and thereby also the press body move. If the displacement body is able to move freely within the screen body, it is subjected to inertial forces and moves in the direction of the screen body wall when the screen body moves in rotation.

Alternatively, the press body can be guided or fixed in position within the screen body. The screen body moves and thus the distance between the screen body wall and the press body changes even with a fixed press body position, so that a pressing or wringing function is achieved.

Preferably, the pressure body is fixed to a first housing side of the housing opposite the drive. For example, the press body can be screwed to the housing. Other material-locking, form-locking and/or force-locking fastenings are likewise preferred. In a particularly preferred embodiment, the housing has a cover, wherein the pressure body is fixed to the cover and can be placed on the separator device by means of the cover. Provision can be made for the press body to extend along the axis of rotation.

In a preferred embodiment, the displacement body extends into the screen body in a range of approximately 20% to 100%, preferably in a range of 50% to 100%, particularly preferably in a range of 70% to less than 100%, of the length of the screen body, measured between a first end side of the screen body, which is arranged proximally with respect to the drive device, and a second end side of the screen body, which is opposite the first end side. By extending the press body into the screen body, the volume and/or the separation effect of the screen body can be adjusted. Preferably, the diameter of the press body is selected such that contact between the press body and the screen body is avoided when the screen body is moved. Particularly preferably, the press body extends from the second end side substantially as fast as above the bottom plate of the screen body.

In a preferred embodiment, the second outlet is connected to the screen body via a flexible outlet. The flexible outlet preferably allows the screen body to rotate about the axis of rotation and is particularly preferably constructed to be torsionally rigid. It can be provided that the flexible outlet part fixes the screen body in a manner that it cannot rotate relative to the central axis. For this purpose, the flexible extension can be connected to the housing, preferably in a rotationally fixed manner. It is to be understood that the flexible outlet can also have no flexible elements.

Preferably, the flexible outlet is connected to the screen body in a completely sealed manner. The fibrous material then passes from the screen body into a flexible outlet and can reach a second outlet. Particularly preferably, the flexible outlet is completely connected to the end face of the screen body. For example, the flexible outlet can be rolled onto the screen body and connected to the screen body. Preferably, the flexible outlet is releasably connected to the screen body. For this purpose, a pipe clamp or a clamping ring may be provided, for example. However, it should be understood that the flexible guide can also be connected to the screen body in a non-releasable manner.

Preferably, the flexible outlet is connected to a second end side of the screen body, which second end side is opposite a first end side of the screen body arranged proximally with respect to the drive device. Thereby, the fibrous material is drawn out through the second end side of the screen body. Particularly preferably, both the flexible outlet and the press body are arranged on the second end side of the screen body.

In a preferred embodiment, the flexible outlet has an outlet hose which is connected to the screen body at a first end. Preferably, the outlet hose is rolled up on the first end on the screen body and is fastened to the screen body by means of a hose clamp. The flexible outlet section preferably has two or more outlet hoses which are preferably distributed uniformly over the circumference of the screen body. Furthermore, the flexible outlet can preferably have a bellows, a helical hose and/or an articulated pipe section. Furthermore, the flexible outlet can have one or more coupling elements, one or more cylindrical pipes and/or one or more elbows. Particularly preferably, the outlet hose opens into an outlet line, which is connected to the second outlet.

Preferably, the second end of the outlet hose is connected to the housing for fixing the screen body substantially rotationally fixed. By fixing the second end of the outlet hose to the housing, the outlet hose is fixed in a rotationally fixed manner so that it cannot rotate about its longitudinal axis, which extends between the first end and the second end. The outlet hose is preferably of torsionally rigid design, so that a screen body connected to the first end of the outlet hose is prevented from rotating. It will be appreciated that the lead out hose may be allowed to twist slightly about its longitudinal axis so that the screen body may perform a slight rotational movement about its central axis. Preferably, the maximum angle of rotation of the screen body about its central axis can be adapted by means of the torsional rigidity of the hose. A slight rotation of the screen body around its central axis may for example be advantageous in order to avoid jamming of solid material contained in the waste water. Furthermore, the outlet hose is preferably bendable about its longitudinal axis, so that it allows the screen body to rotate about the axis of rotation. If the screen body moves on a circular track, the first end may preferably follow said movement, wherein the second end is stationary. However, it is also preferred if the flexible outlet fixes the screen body about the axis of rotation and the central axis and allows the central axis of the screen body to tilt.

Preferably, the housing has a support element, wherein the outlet hose is fastened to the support element. The support element may extend partially into the hollow space formed by the housing. Particularly preferably, the support element is designed as a plate in the housing and has a through-passage for the fibrous material. Also preferably, the tube section of the flexible outlet can form or be connected to the support element. In a preferred embodiment, the outlet hose can be connected to the housing by means of a pivot joint, so that it allows the screen body to rotate about the central axis.

Preferably, the press body is arranged at least in sections within the flexible outlet and forms an outlet channel together with the flexible outlet. Preferably, the press body extends completely through the outlet hose. However, it can also be provided that the pressure body extends substantially parallel to the flexible lead-out. The outlet channel is preferably designed as an annular channel. The flow cross-section of the outlet channel is preferably smaller than the cross-section of the screen body. Preferably, the outlet channels allow the fibrous material to be extracted circumferentially symmetrically from the screen body.

In a preferred embodiment, the inlet is connected to the screen body interior of the screen body via a flexible supply. The flexible supply allows the screen body to rotate about the axis of rotation. Preferably, the flexible supply is also allowed to rotate around the central axis. Also preferably, the flexible supply may fix the screen body in a relatively non-rotatable manner with respect to its central axis. Particularly preferably, the flexible supply is of substantially torsionally rigid design.

In a preferred embodiment, the flexible supply is connected to the screen body in a completely sealed manner. For example, a flexible supply may be rolled onto and connected to a screen body. However, it is also possible to provide that the flexible supply opens in a sealed manner into the screen body.

Preferably, the flexible supply is connected with a first end side of the screen body, which first end side is arranged proximally with respect to the drive means. Particularly preferably, the flexible supply section is opposite the flexible discharge section. By this design, an even flow of wastewater through the screen body is achieved. Particularly preferably, the first end side is arranged in the vertical direction below the second end side of the screen body, so that the waste water is supplied into the screen body from below. The drawing of the fibrous material is preferably performed upward. Hereby, the fibrous material is prevented from coming out of the screen body due to gravity drive.

According to a preferred embodiment, the flexible supply part has at least one supply hose. Likewise, the flexible supply can have a supply bellows, a helical hose or an articulated connecting pipe section. Preferably, the supply hose is bendable about its longitudinal axis. Preferably, the flexible supply has a first supply hose and a second supply hose, wherein the second supply hose extends at least partially within the first supply hose for forming the supply channel. Preferably, the supply channel is configured as an annular channel. Provision may be made for the drive shaft of the drive device to extend through the second supply hose. In this way, it is advantageously avoided that one or more elements of the drive come into contact with the waste water. The first supply hose and the second supply hose may also be arranged side by side. Particularly preferably, the flexible supply has a plurality of supply hoses which are distributed uniformly on the end face of the screen body. Preferably, the flexible supply portion also has a distributor configured to supply waste water to the supply channel. Preferably, the distributor is configured as an elbow, which is connected to the inlet.

Provision can be made for the first supply hose to be connected in a sealing manner over the entire circumference of the screen body and for the second supply hose to be connected in a sealing manner to a shoulder of the screen body. Preferably, the first supply hose is rolled onto and secured to the screen body. The second supply hose is tightly connected with a shoulder of the screen body, wherein the screen body preferably has one or more supply openings arranged between the shoulder and the circumferential surface of the screen body. In order to achieve a supply of the waste water which is as circumferentially symmetrical as possible, the supply opening can also be configured as a section of an annular gap.

In a preferred embodiment, the separator device has a feed pump for feeding the waste water under pressure into the first screen body. Preferably, the housing is closed such that the pressure inside the housing is greater than the ambient pressure. Preferably, there is a pressure drop between the screen body interior space of the screen body and the first outlet for filtrate, thereby squeezing the filtrate through the screen body.

Preferably, the first outlet has a latching tap configured for adjusting a first discharge pressure for the filtrate. Preferably, the latching tap is configured as a ball, pinch valve or slide valve. It can also be provided that the second outlet has a shut-off valve which is designed to set a second discharge pressure for the fibrous material. It is understood that the blocking tap is also arranged downstream of the first outlet and may be in fluid communication with the first outlet. Likewise, a shut-off valve may be disposed downstream of and in fluid communication with the second outlet.

Preferably, the first discharge pressure is less than the second discharge pressure. In this case, the pressure drop between the screen body interior space and the first outlet is greater than the corresponding pressure drop between the screen body interior space and the second outlet. Thereby, the separating effect of the separator device can be improved. The filtrate is pressed through the screen body wall by the pressure drop. Further, the ratio of the first discharge pressure to the second discharge pressure affects the remaining content of the filtrate remaining in the fibrous substance.

In a preferred embodiment, the separator apparatus has an inlet pipe forming an inlet, the inlet pipe extending substantially along the axis of rotation to the interior of the screen body. The inlet pipe preferably extends substantially completely through the screen body. If the screen body is preferably oriented substantially vertically as already described above, the inlet pipe preferably extends in this case from above to substantially as fast above the bottom plate of the screen body. In this case, the inlet pipe may form an extrusion. The diameter of the inlet pipe can be selected such that a sufficient wringing function is achieved. It is to be understood that wringing can also be wringing, preferably by means of a force acting perpendicular to the screen body. It is also conceivable to surround the inlet pipe with a second wrapper, so that a sufficient diameter is achieved. It is also contemplated to vary the wall thickness of the inlet tube.

Furthermore, a separator device for separating fibrous matter from waste water is disclosed, the separator device comprising: a housing having at least one inlet for waste water, at least one first outlet for filtrate and at least one second outlet for fibrous articles; and at least one hollow screen body disposed in the housing; wherein the inlet is arranged in an intermediate space between the housing and the screen body and the first outlet opens into the interior of the screen body, characterized in that the at least one screen body is movably arranged in the housing and is coupled to a drive for moving the screen body. Preferably, a press body is arranged in the intermediate space. Reference is made fully to the above description of the first aspect of the invention with regard to the advantageous design of the separator apparatus.

In a further embodiment of the invention, the drive device has an oscillating drive for driving the screen body in an oscillating manner. In principle, two types of motion should be considered, namely continuous rotation about the axis of rotation and oscillation. It is also conceivable that the two operating types alternate with each other or are carried out according to a specific scenario. Upon oscillation, a back and forth oscillation of the liquid within the screen body is achieved, whereby the fibrous material is automatically deposited on the inner surface of the screen body. In addition, a particularly simple counter-current flushing is thereby achieved. In this way, during the oscillation, filtration always takes place on the trailing side of the screen body, while backwashing is carried out on the leading side of the screen body. The fibrous matter is prevented from adhering to the screen body and thereby the screen body is prevented from adhering.

According to a preferred embodiment, two or more screen bodies are provided. Especially three or more, four or more, five or more. A number of less than ten screen bodies has proven to be a preferred number. For example, four screen bodies form a good number which enables efficient filtration of the liquid, but nevertheless does not lead to increased structural outlay. In this embodiment, it is preferably provided that two or more screen bodies are arranged such that the axis of rotation is outside the screen bodies. Preferably, however, all screen bodies have a common axis of rotation. That is, in this embodiment, the screen bodies collectively rotate about a common axis of rotation. In particular in this embodiment, an oscillating drive is preferred. In this case, it is also particularly suitable for a freely movable press body to be arranged in each screen body.

The connection of the screen body for the supply and removal of liquid or sludge can also be effected in this case via flexible hoses. This is particularly simple if the screen body is moved in an oscillating manner and is not continuously rotated in one direction.

Preferably, the screen body has a mesh size of 10 μm to 300 μm. Preferably, the mesh size is in the range of 100 μm to 300 μm, preferably 150 μm to 250 μm. Further, preferably, the mesh size is in the range of 10 μm to 100 μm, preferably 10 μm to 50 μm. The exact mesh size may be relevant for the waste water to be filtered, especially for the separation target and the type of fibrous material. Mesh sizes in the range of about 300 μm to 100 μm are preferred for the coarse separation, while mesh sizes in the range of 10 μm to 100 μm are preferred for the fine separation of aqueous waste water.

A plurality of screen bodies may also be concentrically embedded in each other. The mesh size is preferably reduced from the inside outwards. The inner screen body may, for example, have a mesh size in the range of approximately 300 μm to 100 μm, while the outer screen body may, for example, have a mesh size in the range of 10 μm to 100 μm.

In a second aspect of the invention, the initially mentioned object is achieved by a method for separating fibrous material from wastewater, in particular in the case of using a separator device according to the previously described preferred embodiment of the separator device according to the first aspect of the invention.

The method preferably comprises at least the following steps: feeding the waste water containing fibres into a screen body; moving the screen body; filtering the wastewater on a screen body; discharging the filtrate from an intermediate space between the screen body and the housing; the fibrous product is discharged from the inside of the screen body. The steps of the method for separating fibrous substances are preferably carried out at least partially simultaneously and/or continuously. Preferably, the movement comprises an oscillation. It can also be provided that the movement comprises a rocking movement. Preferably, the rocking motion causes a flow parallel to the axis of rotation and/or a flow around the central axis of the screen body.

It is to be understood that the separator apparatus according to the first aspect of the invention and the method according to the second aspect of the invention have the same and similar sub-aspects as are set out in the dependent claims especially. In this connection, reference is made fully to the above description of the separator apparatus according to the first aspect of the invention for some of its features and advantages.

In a preferred embodiment of the method, the method comprises: filtering the waste water on a first section of the screen body, which first section follows behind with respect to the direction of movement; and the screen body is backwashed in a second section of the screen body, which second section is forward with respect to the direction of movement. Said steps are preferably carried out if said movement comprises an oscillation. The fibrous material can be prevented from permanently adhering to the screen body wall, and sludge which is dewatered and has a high loading of the fibrous material can be taken out through the second outlet.

Further, preferably, the method comprises: the fibrous product is pressed against the inner side of the screen body wall of the screen body by means of a press body. In a preferred embodiment of the method, the screen body is rotationally fixed about the central axis.

Embodiments of the present invention will now be described below with reference to the accompanying drawings. The figures do not necessarily show the embodiments to scale, but rather they are shown in schematic and/or slightly distorted form, if helpful for illustration. With regard to the supplementation of the teaching directly visible from the figures, reference is made to the relevant prior art. It is contemplated that various modifications and changes in form and detail could be made to the embodiments herein without departing from the general concept of the invention. The features of the invention disclosed in the description, in the figures and in the claims can be essential both individually and in any combination for the embodiment of the invention. Furthermore, all combinations of at least two of the features disclosed in the description, the drawings and/or the claims fall within the scope of the invention. The general idea of the invention is not limited to the precise forms or details of the preferred embodiments shown and described below or to the solutions which are limited compared to the solutions claimed in the claims. In the given dimensioning range, values within the mentioned limits should also be disclosed as limiting values and can be used and required at will. For the sake of simplicity, the same reference numerals are used below for identical or similar components or components with identical or similar functions.

Drawings

Further advantages, features and details of the invention emerge from the following description of a preferred embodiment and from the drawings; in the drawings:

fig. 1 shows a schematic cross section of a first embodiment of a separator apparatus;

fig. 2 shows a cross-section along the line a-a according to fig. 1;

fig. 3 shows a schematic cross section of a second embodiment of a separator apparatus;

fig. 4 shows a cross-section along the line B-B according to fig. 3;

figure 5 shows a cross-section of a screen body according to a second embodiment;

FIG. 6 shows a cross-section of a third embodiment of a separator apparatus;

FIG. 7 shows a cross-section of a third embodiment of a separator apparatus perpendicular to the cross-section shown in FIG. 6;

fig. 8 shows a schematic cross-section of a fourth embodiment of a separator apparatus;

fig. 9A shows a schematic top view of a separator apparatus according to a fifth embodiment;

FIG. 9B shows a top view of the separator device according to FIG. 9A, wherein the eccentric is rotated 90 °;

FIG. 10A shows a schematic side view of a sixth embodiment of a separator apparatus;

fig. 10B shows a schematic side view of the separator apparatus according to fig. 10A, wherein the screen body is rotated 270 ° in a clockwise direction;

fig. 11A shows a schematic side view of a separator apparatus according to a fifth embodiment, similar to the position in fig. 9B; and

fig. 11B shows a schematic side view of the separator apparatus according to fig. 10B, wherein the screen body is rotated 90 ° in a counter-clockwise direction.

Detailed Description

According to fig. 1, a separator device 1 for separating fibrous material 2 (see fig. 5) from waste water 3 has a housing 4 and a screen body 6 arranged in the housing. The housing 4 is configured in this embodiment essentially like a barrel and forms a container which delimits an interior space 8. The housing 4 has a side wall 10, which may be cylindrical, for example, and a bottom 12. The screen body 6 is inserted into the inner space 8. The screen body 6 is also substantially barrel-shaped and in this embodiment cylindrical. The screen body 6 has a screen body wall 14 which forms a screen surface. The screen surface preferably has a mesh size of 10 μm to 300 μm. The lower end face of the screen body 6, which is referred to in fig. 1, has a bottom plate 16, which closes the screen body 6 at the lower end.

The housing 4 has an inlet 20 for the waste water 3. The inlet 20 is in this embodiment (fig. 1) formed by an inlet pipe 22 which extends to the interior of the screen body 6 and ends near the bottom plate 16. Furthermore, the inlet 20 is connected to a hose or line 24, into which a pump 26 is inserted in order to pump the waste water 3 from a waste water container 28 to the inlet 20.

After the waste water 3 has been conducted by means of the pump 26 through the inlet pipe 22 to the interior of the screen body 6, it is filtered by means of the screen body wall 14, so that the filtrate enters the intermediate space 9, which is located between the housing wall 10 and the radially outer side of the screen body 6. To remove filtrate from the intermediate space 9, the housing 4 has a first outlet 30 for filtrate. The first outlet 30 is in turn connected to a line 32 in which a pressure gauge 33 and a lock-out cock 34 are embedded. The filtrate is taken off at about 0.7 bar in operation.

For removing the fibrous material 2 or filter residue from the interior of the screen body 6, the housing has a second outlet 36, which is only schematically shown in fig. 1. The second outlet 36 is in turn connected to a line 37, into which a pressure gauge 38 and a shut-off valve 39 are inserted. The sludge is typically withdrawn at a pressure of about 1 bar.

Furthermore, the separator device 1 has a drive 40, which in this embodiment has an electric motor 42. The electric motor 42 is not provided with a transmission in this embodiment (fig. 1), but is directly connected to the drive shaft 44. The drive shaft 44 extends along the axis of rotation R through an opening 45 in the bottom plate 12 and is supported in a support 46. Inside the housing 4, the drive shaft 44 is connected with an eccentric 50. The eccentric 50 rotatably carries a screen shaft 52 which is itself rigidly connected to the bottom plate 16 of the screen body 6. The screen body 6 has a centre axis a and is rotatable relative to the eccentric 50 due to the rotatable bearing at the eccentric. The eccentric 50 rotates about the rotation axis R when the drive shaft 44 rotates, so that the screen body 6 as a whole also rotates about the rotation axis R.

The central axes a of the screen bodies 6 are arranged offset in parallel to the axis of rotation R, i.e. at an eccentric distance E. This is achieved in this way: the screen body 6 is also always moved perpendicular to its central axis a when the drive shaft 44 is rotated, so that a movement of the liquid in the screen body 6 and also outside in the intermediate space 9 is achieved. This arrangement can be seen particularly well in fig. 2. Fig. 2 shows a cross-sectional view along the line a-a according to fig. 1. The eccentric 50 rotates in a clockwise direction (with reference to the curved arrow) about the rotation axis R. The eccentric 50 carries the screen body 6 along its centre axis a. That is, with the eccentric spacing E, the central axis a rotates with the screen body 6 about the axis of rotation R. In this way, the screen body 6 moves in a rotating movement through the interior 8 of the housing 4, so that the geometry of the intermediate space 9 changes. On the leading side 6a of the screen body 6, the screen body 6 thus presses away the liquid in the intermediate space 9, wherein a portion of this liquid passes through the screen body wall 14 from the outside to the inside (see arrows). In this leading region 6a, therefore, the fibrous material adhering to the inner surface of the screen body wall 14 is backwashed and thereby detached. The screen body wall 14 is prevented from being adhered.

Similarly, the liquid is pressed through the screen body wall 14 from the inside to the outside in the following section 6b of the screen body wall 14 and is thereby filtered. In addition, a compression of the fibrous material 2 on the inner wall of the screen body 6 can be achieved on the basis of the flow, whereby the filtration is more efficient.

With reference to fig. 1, it can further be seen that the inlet pipe 22 is stationary and extends along the axis of rotation R. That is, when the screen body 6 rotates, the screen body also rotates relative to the inlet pipe 22, so that the distance P (refer to fig. 1) between the inner surface of the screen body wall 14 and the outer surface 23 of the inlet pipe 22 changes. The inlet pipe 22 thereby further causes movement in the fluid within the screen body 6. Thus, when the relative spacing P between the inlet pipe 22 and the screen body wall 14 is small (i.e., on the left side with reference to fig. 1, for example), the inlet pipe 22 can press the fibrous materials 2 toward the inner surface of the screen body wall 14. The inlet pipe 22 in this case acts as a press body 60. Hereby, a pressing of the fibrous material 2 against the inner surface of the screen body wall 14 is achieved, and thereby a "wringing" effect and/or a "wringing" effect is achieved. The inlet tube 22 is here substantially cylindrical, but can also have any other shape or any other cross section and can in particular be conically shaped.

By correspondingly dimensioning the outer diameter of the inlet pipe 22, the effect can be influenced in a targeted manner.

An embodiment modified in relation to this is shown in fig. 3 to 5. Identical and similar elements are provided with the same reference numerals and reference is made in this respect fully to the above description of the first embodiment.

A first difference in the separator apparatus 1 according to the second embodiment (fig. 3-5) is that a total of four screen bodies 6 are embedded in the housing 4 (see fig. 4). These four screen bodies 6 are significantly smaller in diameter than the one screen body 6 according to the first embodiment. Each screen body 6 is connected by means of two struts 62, 64 to a drive shaft 44, which extends through an opening 45 in the bottom plate 12 of the housing 4. The drive shaft 44 in turn has an axis of rotation R and each of the individual screen bodies 6 has a central axis a (a1, a2, A3, a 4). The drive shaft 44 is rotatable about the axis of rotation R, so that the screen body 6 can be rotated about the axis of rotation R with an eccentric spacing E. The axis of rotation R is therefore a common axis of rotation for all screen bodies 6 arranged in the housing 4.

Due to the plurality of screen bodies 6, a plurality of inlets 20 are also provided in this embodiment (fig. 3-5), which are configured in the bottom plate 12 in this embodiment. The inlets 20 are in this exemplary embodiment each connected to a flexible hose 66, which extends through a corresponding opening in the bottom plate 16 of the screen body 6. The flexible hose 66 is advantageous since it must allow some rotation of the screen body 6 relative to the bottom plate 12 of the housing 4. Other embodiments may also comprise a distributor housing in which the introduction of waste water is or is not effected depending on the rotational position.

Similarly, the separator device 1 also has a plurality of second outlets 36, i.e. exactly four second outlets, wherein each of the plurality of second outlets 36 is provided with a screen body 6. The second outlet 36 is in turn connected to a flexible hose 68 which extends to the interior of the respective screen body 6, so that the fibrous material 2 can be removed from the interior of the respective screen body 6.

Another difference is the drive means 40. The drive in turn has an electric motor 42, which in this exemplary embodiment (fig. 3 to 5) is first connected to an oscillating gear 72 via a belt gear 70. The oscillating gear 72 has a drive shaft 44 which extends into the housing 4. The oscillation transmission 72 serves to cause the continuous rotary drive movement of the electric motor 42 to become an oscillation of the drive shaft 44 about the axis of rotation R. This is particularly advantageous in this embodiment, since a plurality of screen bodies 6 are provided, which are connected to the respective inlet 20 or second outlet 36 via flexible hoses 66, 68. The oscillation is again a rotation in this exemplary embodiment, which is applied only in a specific angular range, for example at 10 °. Other angular regions may also be preferred, in particular in the range from 5 ° to 180 °, preferably from 5 ° to 90 °, further preferably from 5 ° to 15 °. An angular range of less than 5 ° or an angular range of 1 ° to 5 ° is also preferred. Surprisingly, it has been demonstrated that a small stroke achieves an effective and efficient separation. Simultaneously with a small stroke, an increased frequency can also be used. The frequency is preferably in the range of 15Hz to 50 Hz.

The oscillating movement is shown in fig. 4. There can be seen a cross-section along the line B-B according to fig. 3, so that four screen bodies 6 can be seen in the cross-section. The screen bodies 6 are each offset by approximately 90 ° from one another, so that a star-shaped arrangement around the drive shaft 44 results. However, it is likewise possible to provide eight screen bodies 6, or screen bodies 6 having a generally larger diameter. Shown by dashed lines: the drive shaft 44 oscillates, that is to say moves back and forth in the clockwise direction and in the counterclockwise direction with reference to fig. 4.

Fig. 5 now shows an enlarged view of the screen body 6 according to the second embodiment in section. Like the separator device 1 according to the first embodiment, the separator device 1 according to the second embodiment has a pressing means 59, which in this second embodiment comprises a pressing body 60. The press body 60 is substantially rod-shaped and is embedded inside the screen body 6. The press body is freely movable inside the screen body 6. If the screen body 6 now moves back and forth as shown with reference to fig. 4, the press body 60 also moves back and forth and is subjected to inertial forces. If, for example, the screen body 6 moves to the left or previously to the right and is now braked, that is to say undergoes an acceleration to the left with reference to fig. 5, the press body moves to the right with reference to fig. 5 and presses the fibrous materials 2 together on the right with reference to fig. 5, that is to say presses them. Thereby, a "wringing" effect is achieved and the fibrous material 2 can be further dewatered.

According to a third embodiment (fig. 6, 7), the separator device 1 has a housing 4 and a screen body 6 arranged therein. Identical and similar elements are again provided with the same reference numerals, which have also been used in the first two embodiments. In this regard, reference is made fully to the description above.

The housing 4 is of substantially cylindrical design in this embodiment and defines an interior space 8. The side wall 10 of the housing 4 is of cylindrical design and the housing 4 furthermore comprises a base 12 and a cover 74. Referring to fig. 6, the housing 4 has a drive section 76 below the bottom 12, which is connected with a base 78 of the separator device 1. A screen body 6 is inserted into the interior 8, wherein the screen body 6 in this embodiment extends through the base 12. For maintenance, the drive section 76 has a maintenance outlet 77 (not shown in fig. 6). The screen body 6 is also cylindrical in this embodiment and has a bottom plate 16 on a first end side 80, which is arranged proximally with respect to the drive means 40. On a second end side 82 opposite the first end side 80, the screen body 6 is open.

The drive 40 has an electric motor 42 which is connected to a drive shaft 44 via a belt drive 84. The drive shaft 44 is rotatably mounted in the base 78 and in the drive section 76 of the housing 4 by means of the bearing 46. The drive shaft 44 extends along the axis of rotation R through an opening 45 in the base 12 and is connected with an eccentric 50. The unbalance of the drive shaft 44, which is caused by the eccentricity E of the eccentric 50 and the screen body 6, is preferably compensated by means of a balancing weight 79. The screen body 6 comprises a bearing sleeve 88 which is rotatably mounted on the eccentric pin 86 of the eccentric 50 by means of a rotatable bearing 90 which is constructed here in a fixed-floating-bearing assembly. The fixed bearing 92 is configured as a ball bearing, while the floating bearing 94 is configured as a roller bearing. It is to be understood that the screen body 6 can also be mounted on the eccentric 50 by means of other types of rolling bearings or by means of sliding bearings. Likewise, the support 90 may be embodied as an adjusted bearing assembly. The eccentric 50 is connected to the drive shaft 44 in such a way that the central axis a has an eccentric distance E to the axis of rotation R. If the drive shaft 44 is set in rotation about the axis of rotation R by means of the electric motor 42 and the belt drive 84, the screen body 6 rotates on a circular orbit about the axis of rotation R. The radius of the circular track is determined by the eccentric spacing E.

The housing 4 has an inlet 20 (not shown in fig. 6, see fig. 7) for the waste water 3, which is connected to a screen body interior space 97 of the screen body 6 via a flexible supply 96. In this exemplary embodiment, the flexible supply 96 has a first supply hose 98, which is connected to the screen body 6 on the first end side 80 in a completely sealed manner. In this case, the first supply hose end 100 of the first supply hose 98 is crimped onto the screen body wall 14 and fixed thereto. Preferably, the first supply hose 98 is releasably secured to the screen body 6, particularly preferably by means of a hose clamp (not shown in fig. 6). The second supply tube end 102 of the first supply tube 98 is here clamped in a sealing manner against a first intermediate plate 104 of the housing 4. In the first intermediate plate 104, which serves here as a support element 106 for the flexible supply 96, a through-opening 108 is formed (fig. 7). The elbow 110 is used to supply the wastewater 3 from the inlet 20 to the supply hose 98. The flexible supply 96 may also have a plurality of first supply hoses 98 which open into the screen body. In this embodiment, the second supply hose 112 is disposed within the first supply hose 98 and forms a supply passage 114 with the first supply hose 98. The second supply hose 112 is connected at the opposite end in a sealing manner to a shoulder 116 of the screen body 6 and to the intermediate plate 104. The first and second supply hoses 98, 112 are flexible, such that the flexible element 96 allows the screen body 6 to rotate about the rotation axis R. Furthermore, the first and second supply hoses 98, 112 are constructed substantially torsionally rigid, so that they substantially prevent the screen body 6 from rotating about its central axis a. The drive shaft 44 extends inside the second supply hose 112, so that the support 46 is prevented from coming into contact with the waste water 3. Preferably, the flexible supply 96 can have corrugations and/or ducts which are supported in an articulated manner on the screen body 6 and on the first intermediate plate 104.

The inlet 20 may be connected to a hose or pipe 24 into which a pump 26 is inserted in order to pump the waste water 3 from a waste water container 28 to the inlet 20. After the waste water 3 is conducted by means of the pump 26 through the inlet 20, the elbow 110 and the supply channel 114 into the screen body interior space 97 of the screen body 6, the waste water is filtered by means of the screen body wall 14, so that the filtrate enters into the intermediate space 9 between the housing wall 10 and the radially outer side of the screen body 6. To remove filtrate from the intermediate space 9, the housing 4 has a first outlet 30 for filtrate (not shown in fig. 6 and 7). The first outlet 30 is in turn connected to a line 32 and may have a pressure gauge 33 and a lock-out tap 34 (not shown in fig. 6 and 7). The latching tap 34 is used to adjust the first discharge pressure.

In this exemplary embodiment, the separator device 1 has a press body 60, which is fastened to a second support element 120 of the housing 4 on a first housing side 118 opposite the drive. The press body 60 is designed here as a cylindrical hollow body which extends along the axis of rotation R over approximately 90% of the length of the screen body 6 (measured between the first end side 80 and the second end side 82) into the screen body interior 97 of the screen body 6. If the screen body 6 is rotated about the axis of rotation R, the spacing between the press body wall 61 and the screen body wall 14 of the press body 60 changes, so that the "wringing effect" and/or the "wringing effect" enhances the separation effect. In order to minimize wear of the press body 60 and the screen body 6, contact of the parts is preferably avoided. However, in order to scrape off solid material adhering to the screen body wall 14, it is also preferable to rub the screen body 6 against the press body 60. Preferably, the extrusion wall 61 has a scraper element for this purpose.

A flexible outlet 122 connects the second outlet 36 to the screen body 6. For this purpose, the flexible outlet 122 has an outlet hose 124, which is connected to the screen body 6 in a sealed manner at a first end 126. The first end 126 of the outlet hose 124 is rolled onto the screen body 6 on the second end 82 and fixed thereto. The second end 128 of the outlet hose 124 is connected in a sealing manner to the second support element 120, wherein the second support element 120 has a through-passage 130. The through passage 130 guides the fibrous material 2 to the second outlet 36 (not shown in fig. 6, refer to fig. 7). The flexible outlet 122 can have a pressure gauge 38 and a shut-off valve 39, wherein the shut-off valve 39 is designed to set the second discharge pressure. Likewise, a pressure measuring device 38 and a shut-off valve 39 can also be inserted into the line 37 connected downstream to the second outlet 36. The outlet hose 124 may also be configured as a bellows or an articulated conduit. The screen body 6 is connected to the second support element 120 via a discharge hose 124 and is mounted in a rotationally fixed manner, wherein the discharge hose 124 is preferably torsionally rigid. Furthermore, the outlet hose 124 is configured to be bendable about its longitudinal axis and thereby allow a rotational movement of the screen body 6 about the rotational axis R. It may also be preferred that the screen body 6 is closed at the second end face 82 by a cover which allows a relative movement of the screen body 6 with respect to the press body 60. The flexible outlet 122 can then have one or more outlet hoses 124 which open into the cover and are preferably distributed uniformly over the circumference of the cover. The press body 60 extends within the outlet hose 124, wherein the press body wall 61 defines an outlet channel 132 together with the outlet hose 124.

Preferably, the cross section of the outlet channel 132 (which cross section extends substantially transversely to the axis of rotation R) is smaller than the flow cross section of the supply channel 114. It is also preferred that the flow cross-section for the filtrate in the intermediate space 9 is larger than the cross-section of the outlet channel 132. Thereby, the flow resistance through the lead-out channel 132 is preferably larger than the flow resistance in the intermediate space 9, so that the separation effect can be enhanced.

Particularly preferably, the flexible outlet 122 and the flexible supply 96 are arranged on opposite end sides of the screen body 6. Thereby, a particularly advantageous flow control of the waste water 3 can be achieved. However, it is also preferred if the supply and discharge of the waste water 3 take place on the same side of the screen body 6.

According to the fourth embodiment (fig. 8), the fifth embodiment (fig. 9A, 9B, 11A and 11B) and the sixth embodiment (fig. 10A, 10B), the central axis a of the screen body 6 is inclined with respect to the rotation axis R. Identical and similar elements are again provided with the same reference numerals, which have also been used in the first two embodiments. Reference is made in full to the above description in this regard.

The screen shaft 52 of the screen body 6 is received in the eccentric 50 at an angle and is rotatably supported by means of an angled bearing 134 (fig. 8). The centre axis a of the screen body 6 intersects the rotation axis R in a point P and encloses an angle of inclination a with the rotation axis. Preferably, the point P is arranged proximally with respect to the first end side 80 of the screen body 6. It may also be preferred that the point P is arranged proximally with respect to the second end face 82 of the screen body 6. Preferably, point P is outside the screen body 6. It may also be preferred that point P is within the screen body 6. The flexible lead-out section 122 is connected to the screen body 6 at the second end 82 with a first end 126 in a completely sealed manner. The flexible outlet part 122 is configured to be torsionally rigid and is fixed to the housing 4 by means of the second end 128, so that the screen body 6 is not rotatable relative to one another about the central axis a. If the eccentric 50 is driven via the drive shaft 44 and the electric motor 42, the screen body 6 moves on a circular path about the axis of rotation R, wherein a rotation of the screen body 6 about the central axis a is substantially prevented by the flexible outlet 122. The screen body 6 performs a rocking motion, wherein the inclined support 134 allows the screen shaft 52 to rotate relative to the eccentric 50. The central axis a describes here the movement that sweeps over the circumference of the cone. It may also be preferred that the screen shaft 52 is fixed on the eccentric 50 such that the central axis a sweeps over the circumference of a cylinder whose longitudinal axis is inclined to the axis of rotation R during rotation about the axis of rotation R.

The top view of the separator apparatus 1 according to the fifth embodiment, shown in fig. 9A and 9B, shows the rocking motion of the screen body 6 when rotating around the centre axis R. Fig. 9B shows a top view of the separator device 1, similar to the top view shown in fig. 9A, wherein the eccentric 50 is rotated 90 ° in the clockwise direction. The press body 60 and the housing 4 are shown in fig. 9A and 9B by means of dashed lines. As indicated by reference points R1 and R2 (which are shown here only for the purpose of illustrating the rocking motion), the screen body 6 is relatively non-rotatable with respect to its central axis a. During the movement, the screen body 6 maintains its orientation relative to the central axis a and moves at least in sections on a circular trajectory. The entire screen body 6 moves on a circular path. The first circumferential spacing D1 (measured between the side wall 10 of the housing and the screen body 6 in the region of the bottom plate 16, the outer circumference of which is indicated by the line 136) and the second circumferential spacing D2 (measured between the side wall 10 and the screen body 6 in the region of the second end side 82 along a vertical line) vary as well. However, it can also be provided that the bottom plate 16 only tips over during the movement of the eccentric 50, so that the first circumferential distance D1 is constant. Furthermore, it can be provided that the first circumferential spacing D1 changes to a lesser extent than the second circumferential spacing D2. In fig. 9A, the minimum of the second circumferential spacing D2 is set in the region of the reference point R2, wherein the minimum of the second circumferential spacing D2 is at the reference point R1 in fig. 9B. The first circumferential spacing D1 changes during the rotation of the screen body 6 about the axis of rotation R. It may also be preferred that both the first circumferential spacing D1 and the second circumferential spacing D2 change, or that only the first circumferential spacing D1 changes, while the second circumferential spacing D2 is constant.

The flexible supply 96 is embodied here as a first supply hose 98 (fig. 8). The waste water 3 is conveyed by means of the pump 26 through the inlet pipe 22 to the inlet 20 and by means of a flexible supply 96 opening into the screen body 6 into the screen body interior 97 of the screen body 6. The flexible supply 96 can be designed as a simple hose. Since the bottom plate 16 is only tilted during the rotation of the screen body 6 about the axis of rotation R, a "twisting" of the flexible supply 96 onto the eccentric 50 and/or the drive shaft 44 can be effectively avoided. It will be appreciated that such "twisting" is also avoided when the bottom plate moves on a circular track. For example, the drive shaft 44 and the eccentric 50 may extend through the flexible supply 96. "twisting" is likewise avoided when the flexible supply 96 is connected to the screen body 6 in the circumferential direction outside the path of movement of the eccentric 50.

In the sixth embodiment of the present invention, the center axis a of the mesh body 6 is inclined with respect to the rotation axis R. The central axis a of the screen body 6 is arranged here in an eccentric plane EE which is spaced apart at an eccentric distance E from the axis of rotation R and is configured parallel thereto. The central axis a and the rotational axis R of the screen body 6 are configured offset to one another and do not have an intersection point (fig. 10B). Here, the inclination angle α is determined by a projection of the central axis a onto the rotation axis R (fig. 10A). In operation, the eccentric plane EE is always parallel to and rotates about the rotation axis R. In this embodiment, the screen body 6 is moved on a circular orbit about the axis of rotation R by means of the drive device 40. Here, the first end side 80 precedes the second end side 82. In the view shown in fig. 10B, this is rotated by 270 ° relative to the view shown in fig. 10A. It will be appreciated that other elements of the separator apparatus are not shown in figures 10A and 10B for clarity.

According to the fifth embodiment, the rotation axis R is parallel to the side wall 10 of the housing 4. Also preferably, the rotation axis R may be inclined with respect to the housing 4 (fig. 11B). The screen body 6 is connected to the drive shaft 44 of the drive device 40 by means of a screen shaft 52 and an eccentric 50. A screen shaft 52 extends through the eccentric 50 and is rotatably supported relative thereto. The central axis a of the screen body 6 is inclined with respect to the rotation axis R by an inclination angle alpha. Preferably, the projection of the central axis a or the central axis a intersects the rotation axis R in an intersection point P, which preferably lies within the eccentric 50. In a particularly preferred embodiment, the screen shaft 52 is designed as a hollow shaft which is mounted on the eccentric pin 86. The point of intersection P is preferably located within the screen body 6, preferably in the range of 30% to 70% of the length L1 of the screen body 6, particularly preferably at 50% of the length of the screen body, measured between the first end face 80 and the second end face 82. Further, the center axis a is spaced apart at an eccentric spacing E (not shown in fig. 11A and 11B) with respect to the rotation axis R. The screen shaft 52 opens perpendicularly into the screen body 6 on the first end face 80. However, an embodiment in which the screen shaft 52 opens at an angle into the screen body 6 is also preferred. The side wall 10 of the housing 4, which is shown by dashed lines in fig. 11A and 11B, is oriented vertically here. It will be appreciated that the separator apparatus according to the fifth and sixth embodiments may have other features according to the embodiments described above. In this regard, reference is made throughout to the above description for some of the features and advantages thereof.

In operation, the screen body 6 is moved by means of the drive shaft 44 on a circular path, wherein the radius of the circular path corresponds to the eccentric distance E. During the circular orbital movement of the screen body 6, it rotates relative to the eccentric 50, so that the orientation of the screen body 6 in the housing 4 remains substantially unchanged. The position of reference point R1 is substantially constant despite the circular orbital motion. It is to be understood that the substantially constant position of reference point R1 is related to the orientation in housing 4. The reference point R1 does not rotate about the central axis a here, but moves on a circular path predetermined by the eccentric 50 and performs a relative lifting movement. The absolute value of the third circumferential wall distance D3 (measured between the side wall 10 of the housing 4 and the screen body wall 14) changes during operation as a result of the eccentric movement. Furthermore, the screen body wall 14 of the screen body 6 performs a relative lifting movement, so that the relative minimum value of the third circumferential wall distance D3 runs along a line parallel to the central axis a on the screen body wall 14 from the first end side 80 to the second end side 82. In fig. 11A, a third circumferential wall spacing D3 is variable, wherein the third circumferential wall spacing has a minimum value proximally with respect to the first end side 80. If the eccentric continues to rotate, the minimum value of the third circumferential wall distance D3 continuously wanders from the first end side 80 toward the second end side 82. The absolute value of the third circumferential wall distance D3 is changed by the movement of the screen body 6 on the circular path. It is to be understood that a second minimum value of the third circumferential wall distance D3, which is arranged offset by 180 ° from the first minimum value, is simultaneously shifted from the second end 82 to the first end 80.

The relative lifting movement of the screen body 6 is phase shifted with respect to the rotation of the screen body 6, which is caused by the eccentric 50. It is to be understood that the relative lifting movement can also be effected only in sections by sections of the screen body. Preferably, the relative lifting movement takes place in the region of the screen body wall 14, wherein the relative height in the center of the screen body is constant. The relative lifting movement follows the circular path movement by a value of approximately 90 °. In fig. 11A, the eccentric 50 is directed outwards from the plane of the drawing, so that the central axis a is arranged in front of the axis of rotation R. The relative lifting movement is phase-shifted by a value of approximately 90 ° and starts with a minimum value of the third circumferential wall spacing D3, which is arranged proximally with respect to the first end side 80. In fig. 11B, the eccentric is pointing to the right, wherein the opposite lifting movement occupies the midpoint position. The third circumferential wall spacing D3 is substantially constant between the first end side 80 and the second end side 82. In this embodiment, the relative lifting movement follows the circular orbital movement. By the relative lifting movement the fibrous material 2 and/or filtrate can be moved from the first end side 80 towards the second end side 82. Embodiments are also preferred in which the lifting movement extends in opposite directions and/or the lifting movement precedes the circular path movement. The screen body 6 is phase shifted by 180 ° with respect to the second lifting movement of the press body 60. In fig. 11B, the speed of the relative lifting movement is at a maximum, wherein at the same time in reference point R4 the maximum pressure acts on the screen body 6 by the acceleration of the waste water 3. Preferably, the first acceleration caused by the movement of the screen body 6 on the circular path has a maximum in a reference point, when the screen body 6 is oriented parallel to the side wall 10 of the housing 4 in the region of this reference point. Thereby, a particularly efficient separation and/or blockage of the screen body 6 is achieved. It is particularly preferred that the fibrous material 2 deposited on the screen body wall 14 is moved by a rocking motion, particularly preferably by a relative lifting motion, in the direction of the second outlet 36.