阅读说明：本技术 一种螺旋式固液分离装置 (Spiral solid-liquid separation device ) 是由 张军 胡志成 刘建国 林恬盛 于 2020-06-11 设计创作，主要内容包括：本发明涉及污水固液分离技术领域,更具体地,涉及一种螺旋式固液分离装置,包括壳体、进水口、出水口、螺旋单元、给螺旋单元提供动力的动力单元、过滤单元、排渣单元；在过滤单元内侧形成截面尺寸沿污水流动方向逐渐减小的第一过滤腔体,进水口与第一过滤腔体连通,螺旋单元设置在第一过滤腔体内,排渣单元活动连接于第一过滤腔体末端,出水口设于壳体并连通至第一过滤腔体与壳体之间。本发明的目的在于克服传统装置固液分离效果差的不足,提供一种高效的固液分离装置,该装置结构设计简单,能连续自动排渣,运行平稳可靠,过滤效率高,固液分离效果好,占地面积小,并且适用于高固含量污水处理。(The invention relates to the technical field of sewage solid-liquid separation, in particular to a spiral solid-liquid separation device, which comprises a shell, a water inlet, a water outlet, a spiral unit, a power unit for providing power for the spiral unit, a filtering unit and a slag discharging unit, wherein the shell is provided with a water inlet and a water outlet; the filter unit is internally provided with a first filter cavity, the cross section size of the first filter cavity is gradually reduced along the flowing direction of sewage, the water inlet is communicated with the first filter cavity, the spiral unit is arranged in the first filter cavity, the slag discharge unit is movably connected to the tail end of the first filter cavity, and the water outlet is arranged on the shell and communicated between the first filter cavity and the shell. The invention aims to overcome the defect of poor solid-liquid separation effect of the traditional device, and provides the efficient solid-liquid separation device which is simple in structural design, stable and reliable in operation, high in filtering efficiency, good in solid-liquid separation effect, small in occupied area and suitable for high-solid-content sewage treatment, and can continuously and automatically discharge slag.)

1. A spiral solid-liquid separation device is characterized by comprising a shell (1) provided with a hollow cavity, a water inlet (2), a water outlet (3), a spiral unit (4), a power unit (5) for providing power for the spiral unit, a filtering unit (6) and a slag discharging unit (7); the water inlet (2) is arranged in the shell (1), a first filtering cavity (101) with the cross-sectional size gradually reduced along the flowing direction of sewage is formed on the inner side of the filtering unit (6), the water inlet (2) is communicated with the first filtering cavity (101), the spiral unit (4) is arranged in the first filtering cavity (101) and is connected with the power unit (5), the slag discharging unit (7) can be opened or closed and is connected to the tail end of the first filtering cavity (101), and the water outlet (3) is arranged in the shell (1) and is communicated between the first filtering cavity (101) and the shell (1).

2. A spiral solid-liquid separation device according to claim 1, characterized in that the water inlet (2) is arranged at the front end of the filter unit (6) in the sewage flow direction.

3. A spiral solid-liquid separation device according to claim 1, wherein the spiral unit comprises a main shaft (41) and a spiral blade (42) fixed on the main shaft (41), the main shaft (41) is connected with the power unit (5), and the outer edge of the spiral blade (42) is attached to the inner wall of the filtering unit (6).

4. A spiral solid-liquid separation device according to claim 3, wherein the first filtering chamber (101) is of a conical structure, and the spiral diameter of the spiral blade (42) is gradually reduced along the sewage flow direction.

5. A spiral solid-liquid separation device according to any one of claims 1 to 4, characterized in that a second filtering cavity (102) is arranged between the shell (1) and the outside of the filtering unit (6), and the water outlet (3) is communicated with the second filtering cavity (102).

6. A spiral solid-liquid separation device according to claim 5, wherein the water outlet (3) is arranged at the upper part of the second filtering cavity (102).

7. A spiral solid-liquid separation device according to claim 5, wherein a sealing sheet (8) for sealing the second filtering chamber (102) and the filtering unit (6) is arranged at the end of the second filtering chamber (102) close to the water inlet (2).

8. A spiral solid-liquid separation device according to claim 1, wherein the filter unit (6) comprises a first filter screen (61) close to the spiral blade (4) and a second filter screen (62) far away from the spiral blade (4), the first filter screen (61) is provided with a plurality of first filter holes (63), the second filter screen (62) is provided with a plurality of second filter holes (64), and the aperture of the first filter holes (63) is larger than that of the second filter holes (64).

9. The spiral solid-liquid separation device according to claim 1, wherein the slag discharging unit (7) comprises a slag discharging valve (71) capable of automatically opening and closing and a driving motor (72) for providing power to the slag discharging valve (71), the slag discharging valve (71) is arranged at the end of the first filtering chamber (101) and is connected with the casing (1), and the slag discharging valve (71) is connected with the driving motor (72).

10. Spiral solid-liquid separation device according to claim 9, characterized in that the reject valve (71) is hinged to the housing (1).

Technical Field

The invention relates to the technical field of sewage solid-liquid separation, in particular to a spiral solid-liquid separation device.

Background

The solid-liquid separation technology is widely applied to the industrial field, and from chemical industry, mining industry, metallurgy, petroleum, light industry, food, pharmacy to machinery and electronics, the solid-liquid separation is ubiquitous and inexhaustible, and the daily life of each industrial department and people is deeply influenced. Especially in the aspect of wastewater and sewage treatment, the solid-liquid separation technology is not separated. A common solid-liquid separation device in the field of water treatment is a sedimentation tank, but along with the increasing of population centralization degree in recent years, the treatment and recycling rate of water resources in a limited area is forced to be greatly improved, and the existing sedimentation tank cannot meet the requirement of high-rate recycling due to the limited particle sedimentation rate. A large amount of flocculating agents are poured into the sedimentation tank to accelerate the sedimentation process to become the only option, but the amount of slag is also increased, the cleaning period of the sediment in the sedimentation tank is shortened, and the use cost is increased invisibly. In order to ensure the water quality of users, an efficient solid-liquid separation pretreatment device needs to be searched to replace the original natural settling equipment.

The reference (publication number is CN208120788U) discloses a spiral solid-liquid separation slag discharging device, sewage enters the device from a water inlet and flows out through a filtering pore plate, waste slag is pushed to a slag discharging port through a spiral blade and is directly discharged, the waste slag is directly discharged without secondary extrusion filtration, a large amount of water is still remained in the waste slag, and the solid-liquid separation effect is poor.

Disclosure of Invention

The invention aims to overcome the defect of poor solid-liquid separation effect of the traditional device and provide a spiral solid-liquid separation device for improving the solid-liquid separation effect.

In order to solve the technical problems, the invention adopts the technical scheme that:

the spiral solid-liquid separation device comprises a shell with a hollow cavity, a water inlet, a water outlet, a spiral unit, a power unit for providing power for the spiral unit, a filtering unit and a slag discharging unit; the water inlet is arranged on the shell, a first filtering cavity with the section size gradually reduced along the flowing direction of sewage is formed on the inner side of the filtering unit, the water inlet is communicated with the first filtering cavity, the spiral unit is arranged in the first filtering cavity and connected with the power unit, the deslagging unit can be opened or closed and connected to the tail end of the first filtering cavity, and the water outlet is arranged on the shell and communicated between the first filtering cavity and the shell.

When the filter is used, sewage enters the first filtering cavity from the water inlet to be filtered to obtain filtered water and waste residues, the filtered water is discharged from the water outlet, and the waste residues are conveyed to the residue discharge unit through the spiral unit to be discharged.

The spiral solid-liquid separation device can effectively improve the solid-liquid separation effect, has simple structural design, stable and reliable operation, high filtration efficiency and small occupied area, and is suitable for treating sewage with high solid content. Specifically, after the sewage enters the first filtering cavity from the water inlet, the liquid can smoothly pass through the filtering unit due to the blocking of the filtering unit and is discharged from the water outlet; and solid waste residue still remains inside the spiral unit, solid waste residue gets into first filter chamber end under spiral unit's promotion, because arrange the sediment unit and connect in first filter chamber end, arrange the sediment unit and be in closed condition originally, sewage flows in from the water inlet constantly, the waste residue is at first filter chamber end accumulation gradually, and, first filter chamber cross sectional dimension reduces along sewage flow direction gradually, can make the pressure that sewage received in first filter chamber increase gradually, in this process, the pressure that the terminal waste residue of first filter chamber received also increases gradually, the liquid that remains in the waste residue is extruded by the secondary under the pressure, discharge from the delivery port through filter unit, when waiting that the waste residue accumulates to a certain volume, arrange the sediment unit and can open automatically, the waste residue is discharged from row sediment unit at last. The automatic slag discharging unit is favorable for further improving the effect of solid-liquid separation, and particularly, the solid-liquid separation can be more thorough through the extrusion effect on the waste slag, and the liquid components in the waste slag are further reduced. And the slag discharging unit can be automatically opened and closed, and has practicability and convenience. The slag discharging unit and the shell can be fixedly connected or movably connected as long as the opening or closing function can be realized; the slag discharge unit may be intermittently opened when the amount of slag is small, or may be continuously opened when the amount of slag is large. The slag discharging unit can be set to have a structure with a wall scraping function, and solid waste residues remained on the inner side of the filtering unit are scraped by utilizing the contact between the slag discharging unit and the inner wall of the filtering unit in the process of opening or closing the slag discharging function, so that the blockage of the filtering unit is further avoided.

Further, the water inlet is disposed at a front end of the filtering unit in a flow direction of the sewage.

Further, the spiral unit comprises a main shaft and a spiral blade fixed on the main shaft, the main shaft is connected with the power unit, and the outer edge of the spiral blade is attached to the inner wall of the filtering unit.

Further, the first filtering cavity is of a conical structure, and the spiral diameter of the spiral blade is gradually reduced along the sewage flowing direction.

Furthermore, a second filtering cavity is arranged between the shell and the outer side of the filtering unit, and the water outlet is communicated with the second filtering cavity.

Further, the water outlet is formed in the upper portion of the second filtering cavity.

Furthermore, a sealing sheet for sealing the second filtering cavity and the filtering unit is arranged at the position, close to the water inlet end, of the second filtering cavity.

Further, the filter unit comprises a first filter screen close to the helical blade and a second filter screen far away from the helical blade, a plurality of first filter holes are formed in the first filter screen, a plurality of second filter holes are formed in the second filter screen, and the aperture of each first filter hole is larger than that of each second filter hole.

Furthermore, the slag discharging unit comprises a slag discharging valve capable of being automatically opened and closed and a driving motor for providing power for the slag discharging valve, the slag discharging valve is arranged at the tail end of the first filtering cavity and connected with the shell, and the slag discharging valve is connected with the driving motor.

Further, the slag discharge valve is hinged with the shell.

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

the invention discloses an efficient solid-liquid separation device which is simple in structural design, capable of continuously and automatically discharging slag, stable and reliable in operation, high in filtering efficiency, good in solid-liquid separation effect, small in occupied area and suitable for high-solid-content sewage treatment. Besides the above beneficial effects, the invention also has the following beneficial effects that the arrangement that the outer edge of the helical blade is attached to the inner wall of the filtering unit can scrape the solid waste attached to the filtering unit by utilizing the helical blade, thereby reducing the blockage of the filtering unit, saving the cleaning cost, simultaneously improving the solid-liquid separation effect and leading the liquid to flow out better. The first filter cavity of toper structure and helical blade complex with it can increase the pressure of first filter cavity bottom, are favorable to the waste residue of first filter cavity bottom to extrude liquid under the pressure effect, promote solid-liquid separation's effect. The second filtering cavity can enable the sewage filtered by the filtering unit to be discharged from the water outlet after standing, precipitating and filtering again.

Drawings

FIG. 1 is a schematic structural view of a spiral solid-liquid separation apparatus according to the present invention;

FIG. 2 is a schematic view of the internal structure of a solid-liquid separation section in example 1 of the present invention;

FIG. 3 is a schematic view of the internal structure of a solid-liquid separation section in example 2 of the present invention;

the graphic symbols are illustrated as follows:

1. a housing; 101. a first filter chamber; 102. a second filtering cavity; 2. a water inlet; 3. a water outlet; 4. a spiral unit; 41. a main shaft; 42. a helical blade; 5. a power unit; 6. a filtration unit; 61. a first filter screen; 62. a second filter screen; 63. a first filtering hole; 64. a second filtering hole; 7. a slag discharge unit; 71. a slag discharge valve; 72. a drive motor; 8. and (7) sealing the sheet.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.