阅读说明：本技术 一种泥浆抽吸过滤装置 (Slurry suction filtering device ) 是由 付正兵 刘文彬 杜杨 谭金山 傅红兵 于 2020-06-28 设计创作，主要内容包括：本发明公开了一种泥浆抽吸过滤装置,包括过滤箱,过滤箱包括箱体,箱体顶部设置有位于一级过滤腔内的进液导管,进液导管的出液端滑动穿设有布液头,布液头的外侧与进液导管的内侧之间留有导液间歇；进液导管与泥浆抽吸机构之间通过导液管连通,且导液管中部设置有叶轮,叶轮与布液头之间设置有传动往复顶升机构；传动往复顶升机构包括导向结构以及传动杆,导向结构使布液头沿进液导管内轴向方向移动,布液头置于一级过滤腔内的一端开有凹槽,凹槽的槽底为斜面,传动杆连接有穿入凹槽内与凹槽底部一侧滑动相抵的驱动杆；本发明与现有技术相比,能够使泥浆均匀的分布到一级过滤腔内进行过滤且泥浆的进液顺畅进行。(The invention discloses a slurry suction filtering device which comprises a filtering box, wherein the filtering box comprises a box body, the top of the box body is provided with a liquid inlet guide pipe positioned in a primary filtering cavity, the liquid outlet end of the liquid inlet guide pipe is penetrated with a liquid distribution head in a sliding manner, and a liquid guide interval is reserved between the outer side of the liquid distribution head and the inner side of the liquid inlet guide pipe; the liquid inlet conduit is communicated with the slurry pumping mechanism through a liquid guide pipe, an impeller is arranged in the middle of the liquid guide pipe, and a transmission reciprocating jacking mechanism is arranged between the impeller and the liquid distribution head; the transmission reciprocating jacking mechanism comprises a guide structure and a transmission rod, the guide structure enables the liquid distribution head to move along the axial direction in the liquid inlet guide pipe, a groove is formed in one end, placed in the primary filtering cavity, of the liquid distribution head, the bottom of the groove is an inclined plane, and the transmission rod is connected with a driving rod penetrating into the groove and slidably abutting against one side of the bottom of the groove; compared with the prior art, the invention can uniformly distribute the slurry into the primary filtering cavity for filtering and the liquid inlet of the slurry is smoothly carried out.)

1. A mud pumping and filtering device comprises a mud pumping mechanism and a filter box detachably connected with the mud pumping mechanism, and is characterized in that;

the filter box comprises a box body, and the box body is divided into a primary filter cavity and a filtrate collecting cavity by a primary filter part;

the top of the box body is provided with a liquid inlet conduit positioned in the primary filtering cavity, the liquid outlet end of the liquid inlet conduit is slidably penetrated with a liquid distribution head positioned in the liquid inlet conduit and the primary filtering cavity, and a liquid guiding interval is reserved between the outer side of the liquid distribution head and the inner side of the liquid inlet conduit;

the liquid inlet guide pipe is communicated with the slurry suction mechanism through a liquid guide pipe, an impeller which is driven to rotate by liquid flowing in the liquid guide pipe is arranged in the middle of the liquid guide pipe, and a transmission reciprocating jacking mechanism which drives the liquid distribution head to move up and down in a reciprocating manner by the rotation of the impeller is arranged between the impeller and the liquid distribution head;

the reciprocating jacking mechanism of transmission includes the guide structure who is connected and the transfer line that links to each other with the impeller between the liquid distribution head is located the one end of feed liquor pipe and the feed liquor pipe inner wall, and guide structure makes the liquid distribution head along the interior axial direction removal of feed liquor pipe, and the one end that the one-level filtration intracavity was arranged in to the liquid distribution head is opened flutedly, and the tank bottom of recess is the inclined plane, and the transfer line is connected with the actuating lever that slides and offset in penetrating the recess with recess bottom one side.

2. A slurry suction filtration unit according to claim 1, wherein: the liquid distribution head comprises a conical part arranged in the liquid inlet guide pipe and a cylindrical part connected with the big head end of the conical part, one end of the cylindrical part is arranged in the liquid inlet guide pipe in a penetrating mode and in the primary filtering cavity, and a plurality of liquid guide plates which are perpendicular to the cylindrical part are uniformly distributed on the side wall of the end part of the primary filtering cavity in the cylindrical part along the circumferential direction of the side wall.

3. A slurry suction filtration unit according to claim 2, wherein: a plurality of liquid guide grooves are circumferentially formed in the outer wall of the cylindrical portion, each liquid guide groove is formed in the axial direction of the cylindrical portion, and the plurality of liquid guide plates are connected with one ends of the plurality of liquid guide grooves in a one-to-one correspondence mode.

4. A slurry suction filtration unit according to any one of claims 1-3, wherein: the first-stage filter part is a bowl-shaped first filter screen, a second filter screen which divides the filtrate collecting cavity into a second-stage filter cavity and a clarified liquid collecting cavity is obliquely arranged below the first filter screen, the second-stage filter cavity is positioned above the clarified liquid collecting cavity, the bottom of the first filter screen is provided with a discharge outlet, a sealing plug is embedded in the discharge outlet, the side wall of the box body positioned at the lower end of the second filter screen is provided with a slag discharge port, the slag discharge port is hinged with a sealing door, and a transmission rod freely penetrates through the sealing plug and the second filter screen; and a connecting rod mechanism which is connected with the transmission rod and the second filter screen in a sliding manner is connected between the sealing door and the sealing plug, and the opening and closing of the sealing door controls the sealing state of the sealing plug to the discharge port through the connecting rod mechanism.

5. A slurry suction filtration unit according to claim 4, wherein: the top of the second filter screen is provided with a sliding groove along the length direction, the connecting rod mechanism comprises a sliding block which is clamped in the sliding groove in a sliding mode and a guide cylinder which is sleeved on the transmission rod in a sliding mode, the guide cylinder is fixedly connected with the bottom of the sealing plug, a first traction rod is rotatably connected between the guide cylinder and the sliding block, and a second traction rod is rotatably connected between the sliding block and the middle of the sealing door.

6. A slurry suction filtration unit according to any one of claims 1-3, wherein: the middle part of the liquid guide pipe is communicated with a sealing shell fixedly arranged in the filtrate collecting cavity, the impeller is rotatably arranged in the sealing shell, and one end of the transmission rod freely penetrates through the sealing shell and then is connected with the impeller.

7. A slurry suction filtration unit according to any one of claims 1-3, wherein: the guide structure is a plurality of, and a plurality of guide structure arrange along cloth liquid head outside circumference, and every guide structure all includes the guide slot of seting up along its axial direction and the guide arm that links to each other with cloth liquid head on the feed liquor pipe inner wall, and the one end slip joint that cloth liquid head was kept away from to the guide arm is in the guide slot.

8. A slurry suction filtration unit according to any one of claims 1-3, wherein: the mud pumping mechanism comprises a pumping pump and a pumping barrel connected with a liquid inlet of the pumping pump, and a liquid outlet of the pumping barrel is fixedly sleeved with a liquid guide pipe.

9. A slurry suction filtration unit according to claim 4, wherein: the pin joint of sealing door is located the roof of row's cinder notch, and the diapire of row's cinder notch is close to the outer one side of box and opens and to have a book shape breach, opens on the inner wall of book shape breach and has to inlay to establish the groove, and integrated into one piece has to inlay to establish the locating piece of establishing the inslot to the inlaying on the sealing door.

Technical Field

The invention relates to the technical field of filtering equipment, in particular to a slurry suction filtering device.

Background

The cast-in-place pile is a pile formed by forming a hole in place and pouring concrete or reinforced concrete. Commonly used are: (1) drilling a cast-in-place pile: the pile is formed by using a spiral drilling machine, a diving drilling machine and the like to form holes on site and pouring concrete, and the construction has no vibration and does not squeeze soil, but the settlement amount of the pile is slightly larger. (2) Sinking a pipe and pouring a pile: the steel pipe with reinforced concrete pile shoe (pile tip) or valve type pile shoe is sunk into the soil by hammering or vibration, then concrete is poured in and the pipe is pulled out simultaneously to form the pile.

The bored concrete pile needs to be drilled by a drilling machine in the construction process, a large amount of slurry can exist in the drilled hole, the slurry in the hole needs to be pumped out before concrete pouring, the pumped slurry can be generally filtered by a filtering device, and the existing filtering device has the phenomenon of uneven distribution and easy blockage in the slurry entering process.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a slurry suction and filtration device to solve the problems that the filter device is not uniformly distributed and is easy to block in the slurry entering process in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a mud pumping and filtering device comprises a mud pumping mechanism and a filter box detachably connected with the mud pumping mechanism;

the filter box comprises a box body, and the box body is divided into a primary filter cavity and a filtrate collecting cavity by a primary filter part;

the top of the box body is provided with a liquid inlet conduit positioned in the primary filtering cavity, the liquid outlet end of the liquid inlet conduit is slidably penetrated with a liquid distribution head positioned in the liquid inlet conduit and the primary filtering cavity, and a liquid guiding interval is reserved between the outer side of the liquid distribution head and the inner side of the liquid inlet conduit;

the liquid inlet guide pipe is communicated with the slurry suction mechanism through a liquid guide pipe, an impeller which is driven to rotate by liquid flowing in the liquid guide pipe is arranged in the middle of the liquid guide pipe, and a transmission reciprocating jacking mechanism which drives the liquid distribution head to move up and down in a reciprocating manner by the rotation of the impeller is arranged between the impeller and the liquid distribution head;

the reciprocating jacking mechanism of transmission includes the guide structure who is connected and the transfer line that links to each other with the impeller between the liquid distribution head is located the one end of feed liquor pipe and the feed liquor pipe inner wall, and guide structure makes the liquid distribution head along the interior axial direction removal of feed liquor pipe, and the one end that the one-level filtration intracavity was arranged in to the liquid distribution head is opened flutedly, and the tank bottom of recess is the inclined plane, and the transfer line is connected with the actuating lever that slides and offset in penetrating the recess with recess bottom one side.

Compared with the prior art, the invention has the following beneficial effects:

the slurry suction filtering device sucks slurry in a drill hole into a liquid guide pipe through a slurry suction mechanism and then leads the slurry into a box body through a liquid inlet guide pipe, the slurry is filtered through a primary filtering part, filtrate enters a filtrate collecting cavity, and filter residues are located in a primary filtering cavity; the slurry in the liquid guide pipe flows to have sufficient pressure to enable the impeller to rotate, the driving rod is enabled to rotate in the groove of the liquid distribution head through the driving rod in the rotating process of the impeller, the liquid distribution head is enabled to move along the axial direction in the liquid inlet guide pipe through the guide structure, the groove bottom of the groove is matched to be an inclined plane, and the driving rod is abutted against the bottom of the groove to enable the liquid distribution head to reciprocate at the liquid outlet of the liquid inlet guide pipe, so that the slurry discharged by the liquid inlet guide pipe is uniformly sprayed to the primary filtering part to be filtered; meanwhile, the liquid distribution head can move back and forth to avoid the blockage at the liquid outlet of the liquid inlet conduit, thereby improving the stability in the operation process.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is an enlarged view of a portion B in fig. 1.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a box body 1, a primary filtering part 2, a liquid inlet conduit 3, a liquid distribution head 4, a liquid guiding interval 5, a liquid guiding pipe 6, an impeller 7, a transmission rod 8, a groove 9, a driving rod 10, a conical part 41, a cylindrical part 42, a liquid guiding plate 43, a liquid guiding groove 44, a sealing shell 11, a guide groove 12, a guide rod 13, a suction pump 14, a suction barrel 15, a supporting plate 16, a second filter screen 17, a sealing plug 18, a sealing door 19, a sliding groove 20, a sliding block 21, a guide barrel 22, a first traction rod 23, a second traction rod 24 and a positioning block 25.

As shown in fig. 1, an embodiment of the present invention provides a slurry suction filtering apparatus, including a slurry suction mechanism and a filter tank detachably connected to the slurry suction mechanism, where the filter tank includes a tank body 1, and the tank body 1 is divided into a primary filter chamber and a filtrate collection chamber by a primary filter portion 2; the top of the box body 1 is provided with a liquid inlet conduit 3 positioned in a primary filtering cavity, the liquid outlet end of the liquid inlet conduit 3 is penetrated with a liquid distribution head 4 positioned in the liquid inlet conduit 3 and the primary filtering cavity in a sliding manner, the liquid inlet conduit 3 is vertically arranged, and a liquid guiding interval 5 is reserved between the outer side of the liquid distribution head 4 and the inner side of the liquid inlet conduit 3; the liquid inlet guide pipe 3 is communicated with the slurry suction mechanism through a liquid guide pipe 6, an impeller 7 which is driven to rotate by liquid flowing in the liquid guide pipe 6 is arranged in the middle of the liquid guide pipe 6, and a transmission reciprocating jacking mechanism which drives the liquid distribution head 4 to move up and down in a reciprocating manner by the rotation of the impeller 7 is arranged between the impeller 7 and the liquid distribution head 4; as shown in fig. 2, the driving reciprocating jacking mechanism comprises a guide structure connected between one end of the liquid distribution head 4 in the liquid inlet conduit 3 and the inner wall of the liquid inlet conduit 3 and a driving rod 8 connected with an impeller 7, the guide structure enables the liquid distribution head 4 to move along the axial direction in the liquid inlet conduit 3, a groove 9 is formed in one end of the liquid distribution head 4 arranged in the primary filtering cavity, the bottom of the groove 9 is an inclined plane, and the driving rod 8 is connected with a driving rod 10 penetrating into the groove 9 and slidably abutted against one side of the bottom of the groove 9.

The mud in the drill hole is pumped into the liquid guide pipe 6 through the mud pumping mechanism and then is guided into the box body 1 through the liquid inlet guide pipe 3, the mud is filtered through the primary filtering part 2, the filtrate enters the filtrate collecting cavity, and the filter residue is positioned in the primary filtering cavity; the slurry in the liquid guide pipe 6 flows to have sufficient pressure to enable the impeller 7 to rotate, the impeller 7 enables the driving rod 10 to rotate in the groove 9 of the liquid distribution head 4 through the driving rod 8 in the rotating process, the liquid distribution head 4 moves along the axial direction in the liquid inlet guide pipe 3 through the guide structure and is matched with the position relation that the groove bottom of the groove 9 is an inclined plane and the driving rod 10 is abutted against the bottom of the groove 9 to enable the liquid distribution head 4 to reciprocate up and down at the liquid outlet of the liquid inlet guide pipe 3, and therefore the slurry discharged by the liquid inlet guide pipe 3 is uniformly sprayed to the primary filtering part 2 to be filtered; meanwhile, the liquid distribution head 4 can move back and forth to avoid the blockage at the liquid outlet of the liquid inlet conduit 3.

According to another embodiment of the present invention, as shown in fig. 2, the slurry suction filtering device further comprises a pair of suction pipes

The structure of the liquid distribution head 4 is optimized, the adopted liquid distribution head 4 comprises a conical part 41 arranged in the liquid inlet conduit 3 and a cylindrical part 42 connected with the big head end of the conical part 41, one end of the cylindrical part 42 penetrates through the liquid inlet conduit 3 and is arranged in the primary filtering cavity, and a plurality of liquid guide plates 43 which are vertical to the cylindrical part 42 are uniformly distributed on the side wall of the end part of the primary filtering cavity along the circumferential direction of the cylindrical part 42; the cooperation of the toper portion 41 and the cylinder portion 42 through liquid distribution head 4 improves the pressure that mud enters into the primary filter intracavity from the blowout of feed liquor pipe 3, makes the spraying that can be more even from feed liquor pipe 3 spun mud and filters on the primary filter portion 2, and the design of drain trap 43 can play certain drain effect to mud, and the position that is convenient for mud distributes on the primary filter portion 2 is wider, improves the filter area of primary filter portion 2.

Further, a plurality of liquid guiding grooves 44 are circumferentially formed in the outer wall of the cylindrical portion 42, each liquid guiding groove 44 is formed along the axial direction of the cylindrical portion 42, and a plurality of liquid guiding plates 43 are correspondingly connected with one end of each liquid guiding groove 44 one by one; the liquid outlet quantity of the liquid inlet conduit 3 is increased through the design of the liquid guide groove 44, and more slurry can be distributed to the edge position of the primary filtering part 2 through the position connection relationship of the liquid guide plate 43 and the liquid guide groove 44, so that the filtering surface of the primary filtering part 2 is more effectively utilized.

As shown in fig. 1, according to another embodiment of the present invention, the slurry suction filtering device further comprises a sealing shell 11 fixedly disposed in the filtrate collection chamber and communicated with the middle of the liquid guide tube 6, the impeller 7 is rotatably disposed in the sealing shell 11, and one end of the transmission rod 8 freely passes through the sealing shell 11 and then is connected to the impeller 7; reasonable installation is carried out to impeller 7 through the design of sealed shell 11, makes impeller 7 can safe, stable operation, and sealed shell 11 still provides certain holding power for transfer line 8 simultaneously.

As shown in fig. 2, according to another embodiment of the present invention, the slurry suction filtering device further includes a plurality of guiding structures, wherein the guiding structures are arranged along the outer circumference of the liquid distribution head 4, each guiding structure includes a guiding groove 12 formed on the inner wall of the liquid inlet conduit 3 along the axial direction thereof and a guiding rod 13 connected to the liquid distribution head 4, and one end of the guiding rod 13 away from the liquid distribution head 4 is slidably clamped in the guiding groove 12; the guide structure is formed by the matching of the guide rod 13 and the guide groove 12, the structure is simple, and the liquid distribution head 4 can stably guide the axial direction of the liquid inlet guide pipe 3.

As shown in fig. 1, according to another embodiment of the present invention, the slurry suction filtering apparatus further comprises a slurry suction mechanism, which is structurally optimized, the slurry suction mechanism comprises a suction pump 14 and a suction cylinder 15 connected to an inlet of the suction pump 14, and an outlet of the suction cylinder 15 is fixedly connected to the liquid guide tube 6; the suction tube 15 is placed in the borehole, and the suction pump 14 provides power to draw mud in the borehole into the catheter 6 and then into the box 1 for filtration.

In order to facilitate the placement of the suction tube 15, a support plate 16 is fixedly attached to the outside of the end of the suction tube 15 adjacent to the suction pump 14, and the support plate 16 is placed at the drilling opening to fix the suction tube 15 during operation.

With reference to fig. 1 and 3, according to another embodiment of the present invention, the slurry suction filtering apparatus further includes a first filter screen having a first filter part 2 in a bowl shape, a second filter screen 17 is obliquely disposed below the first filter screen and divides a filtrate collection chamber into a second-stage filter chamber and a clarified liquid collection chamber, the second-stage filter chamber is disposed above the clarified liquid collection chamber, a discharge opening is formed at the bottom of the first filter screen, a sealing plug 18 is embedded in the discharge opening, a slag discharge opening is formed at a side wall of the box body 1 at a lower end of the second filter screen 17, a sealing door 19 is hinged at the slag discharge opening, and the transmission rod 8 freely passes through the sealing plug 18 and the second filter screen 17; a connecting rod mechanism which is connected with the transmission rod 8 and the second filter screen 17 in a sliding way is connected between the sealing door 19 and the sealing plug 18, and the opening and closing of the sealing door 19 control the sealing state of the sealing plug 18 to the discharge port through the connecting rod mechanism.

The top of the second filter screen 17 is provided with a sliding groove 20 along the length direction, the link mechanism comprises a sliding block 21 which is slidably clamped in the sliding groove 20 and a guide cylinder 22 which is slidably sleeved on the transmission rod 8, the guide cylinder 22 is fixedly connected with the bottom of the sealing plug 18, a first traction rod 23 is rotatably connected between the guide cylinder 22 and the sliding block 21, and a second traction rod 24 is rotatably connected between the sliding block 21 and the middle of the sealing door 19.

The second-stage filtration of the slurry is realized through the design of the second filter screen 17, and the filtration effect of the slurry is improved; the first filter screen is designed into a bowl shape, so that the slurry sprayed from the liquid inlet conduit 3 is sprayed on the upper side edge of the first filter screen, and then the slurry flows to the lower side of the first filter screen to prolong the filtering path of the slurry, thereby improving the filtering effect of the slurry; a liquid guide port is arranged on the side wall of the clarified liquid collecting cavity, and the filtered clarified liquid is guided out from the box body 1; after the mud filtering operation is completed, the sealing door 19 is opened, the sliding block 21 is moved towards the lower end of the second filter screen 17 in the sliding groove 20 by the second traction rod 24 in the rotating process of the sealing door 19, the sliding block 21 enables the guide cylinder 22 to slide downwards on the transmission rod 8 by the first traction rod 23, so that the sealing plug 18 moves downwards along the transmission rod 8, the discharge port is in an open state, so that the filter residue on the first filter screen is guided onto the second filter screen 17, and the filter residue slides along the second filter screen 17 and is discharged out of the box body 1 from the residue discharge port; and in the process of reversely rotating the sealing door 19 to seal the slag discharge opening by the sealing door 19, the second traction rod 24, the slide block 21, the first traction rod 23, the guide cylinder 22 and the sealing plug 18 all move reversely, so that the sealing plug 18 seals the slag discharge opening, and the filtering work can be carried out again.

As shown in fig. 3, according to another embodiment of the present invention, the slurry suction filtering apparatus further includes a hinge point of the sealing door 19 is designed on the top wall of the slag discharging port, a folded notch is formed on one side of the bottom wall of the slag discharging port close to the outside of the box body 1, an embedded groove is formed on the inner wall of the folded notch, and a positioning block 25 embedded in the embedded groove is integrally formed on the sealing door 19; the positioning accuracy of the sealing door 19 in sealing the slag discharging port is improved by the matching of the embedded groove and the positioning block 25, and meanwhile, the sealing performance of the sealing door 19 to the slag discharging port is also improved.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.