Solid-liquid separation equipment for sewage treatment

Abstract

The utility model relates to the field of sewage treatment, and discloses a solid-liquid separation device for sewage treatment, which comprises an outer cylinder; the filter cylinder is arranged in the outer cylinder and is used for separating solid particles and liquid in the material; and the rotating shaft is mounted in the filter cartridge, is arranged to rotate in the filter cartridge, and is used for conveying materials. According to the utility model, the two resistance plates are designed and are arranged at intervals along the direction of the rotating shaft, so that the extrusion times and distance of materials in the filter cartridge are increased, solid particles can be extruded more when being pushed to the discharge port, the extrusion efficiency is improved, and due to the design of the resistance plates, not only is the extrusion times increased, but also the extrusion efficiency is improved. The moving path of the solid particles in the filter cartridge is lengthened, so that the solid particles can be continuously extruded and separated within a longer distance, and the solid-liquid separation effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to a solid-liquid separation device for sewage treatment. Background Art

[0002] The solid-liquid separation device for sewage treatment is an important link in the sewage treatment process, which is used to effectively separate the solid particles from the liquid in the sewage for subsequent treatment or up-to-standard discharge. The screw solid-liquid separator uses a special non-blocking pump to lift the solid particles and liquid in the sewage into the device. Under the action of the spiral shaft, the material is continuously pushed forward and simultaneously squeezed. The solid particles are compressed and pushed towards the discharge port, while the liquid part flows out through the screen or the gap of the device to achieve solid-liquid separation.

[0003] The solid-liquid separation device usually relies on a spiral propeller to push the solid particles in the material towards the discharge port, and under the action of the pressure difference, the solid-liquid separation is achieved through the screen or the gap of the device. As a result, the solid particles mainly accumulate and are squeezed near the discharge port, which not only limits the squeezing efficiency but also makes the squeezing distance relatively short. Many solid particles are discharged from the device before being fully squeezed, affecting the solid-liquid separation effect and the overall sewage treatment quality. Summary of the Utility Model

[0004] To solve the above-mentioned problems, the utility model is realized through the following technical solutions:

[0005] A solid-liquid separation device for sewage treatment, comprising: an outer cylinder; a filter cylinder disposed inside the outer cylinder for separating solid particles from the liquid in the material; a rotating shaft installed inside the filter cylinder and configured to rotate inside the filter cylinder, the rotating shaft being used for conveying the material; two resistance plates installed inside the filter cylinder and spaced along the direction of the rotating shaft for increasing the resistance during material conveyance and increasing the number of squeezing times and the distance of the material inside the filter cylinder.

[0006] The rotating shaft includes: a first pushing plate installed on the rotating shaft, in a spiral shape, for conveying the material; a second pushing plate installed on the rotating shaft, with one of the resistance plates disposed between the second pushing plate and the first pushing plate, the second pushing plate being in a spiral shape, for conveying the material; a third pushing plate installed on the rotating shaft, with the other resistance plate disposed between the third pushing plate and the second pushing plate, the third pushing plate being in a spiral shape, for conveying the material.

[0007] The pitches of the first pushing plate, the second pushing plate, and the third pushing plate are arranged in increasing order.

[0008] The outer cylinder includes: two flow guiding plates, which are symmetrically arranged inside the outer cylinder and are used to guide the flow direction of the liquid; a liquid outlet pipe, which penetrates the outer cylinder and is arranged between the two flow guiding plates for discharging the liquid inside the outer cylinder; a feed pipe, which is installed on the outer cylinder, and one end of the feed pipe penetrates the filter cylinder and extends into its interior for conveying the material to be processed into the filter cylinder.

[0009] The projected shape of the flow guiding plate is an annular shape, and the diameter of one end of the flow guiding plate and the diameter of the end close to the liquid outlet pipe are arranged in an increasing order in sequence.

[0010] The outer cylinder further includes: a power source, which is installed on the outer cylinder, and the power shaft of the power source is connected to the rotating shaft for providing rotational power to the rotating shaft.

[0011] It further includes: a back pressure seat, which is arranged on the rotating shaft and contacts the discharge port of the filter cylinder. The back pressure seat is configured to move away from the filter cylinder on the rotating shaft when the material presses against the back pressure seat, and the back pressure seat is used to provide extrusion force to the material.

[0012] The outer cylinder further includes: a fixing plate, which is installed at one end of the filter cylinder; an elastic member, one end of which is connected to the back pressure seat and the other end is connected to the fixing plate, and the elastic member is used to provide elastic support for the back pressure seat.

[0013] It further includes: a support frame, and the outer cylinder is installed on the support frame.

[0014] Both of the two resistance plates are annular.

[0015] The present utility model provides a solid-liquid separation device for sewage treatment. Compared with the prior art, it has the following beneficial effects:

[0016] 1. By designing two resistance plates and arranging them at intervals along the direction of the rotating shaft, the extrusion times and distance of the material in the filter cylinder are increased, so that during the process of pushing the solid particles towards the discharge port, the solid particles can be subjected to more extrusion effects, improving the extrusion efficiency. The design of the resistance plates not only increases the extrusion times, but also makes the moving path of the solid particles in the filter cylinder longer, which helps the solid particles to be continuously extruded and separated within a longer distance, improving the solid-liquid separation effect.

[0017] 2. By optimizing the design of the rotating shaft, when the pitches of the first pushing plate, the second pushing plate and the third pushing plate are arranged in an increasing order in sequence, it helps to gradually compress and separate the material, so that the solid particles in the filter cylinder can be subjected to a more uniform extrusion effect, improving the solid-liquid separation effect and the overall treatment quality of the sewage. Description of the Drawings

[0018] Figure 1 It is a schematic three-dimensional structure diagram proposed by the present utility model.

[0019] Figure 2 This is a schematic cross-sectional structure diagram of the outer cylinder proposed by the present utility model.

[0020] Figure 3 This is a schematic cross-sectional structure diagram of the filter cartridge proposed by the present utility model.

[0021] Figure 4 This is a schematic structure diagram of the rotating shaft, the first pusher plate, the second pusher plate, and the third pusher plate proposed by the present utility model.

[0022] Figure 5 This is a schematic cross-sectional structure diagram of the resistance plate proposed by the present utility model.

[0023] The reference signs in the figure are:

[0024] 1. Outer cylinder; 101. Deflector; 102. Liquid outlet pipe; 103. Feed pipe; 104. Power source; 105. Fixed plate; 106. Elastic member;

[0025] 2. Filter cartridge;

[0026] 3. Rotating shaft; 301. First pusher plate; 302. Second pusher plate; 303. Third pusher plate; 304. Resistance plate;

[0027] 4. Backpressure seat;

[0028] 5. Support frame. Specific embodiments

[0029] The following further elaborates the present utility model in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the protection scope of the present utility model.

[0030] The following illustrates the implementation manners of the present utility model through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model.

[0031] Refer to Figures 1 - 5, A solid-liquid separation device for sewage treatment, comprising: an outer cylinder 1, which serves as the main housing of the solid-liquid separation device, provides structural support, protects internal components, and ensures the stable operation of the device; a support frame 5, on which the outer cylinder 1 is installed, supports the entire outer cylinder 1 and internal components, ensures the stability of the device, and prevents shaking or tilting during operation; a filter cylinder 2, arranged inside the outer cylinder 1, used to separate solid particles from liquid in the material, effectively separates solid particles from liquid in the material, realizes the main function of solid-liquid separation, and improves the treatment efficiency and quality; a rotating shaft 3, installed inside the filter cylinder 2 and configured to rotate inside the filter cylinder 2, the rotating shaft 3 is used to convey the material, rotates inside the filter cylinder 2, conveys the material, ensures the uniform distribution of the material inside the filter cylinder 2, and improves the separation effect; two resistance plates 304, installed inside the filter cylinder 2 and arranged at intervals along the direction of the rotating shaft 3, used to increase the resistance during material conveyance, increase the extrusion times and distance of the material inside the filter cylinder 2, increase the resistance during material conveyance, extend the extrusion times and distance of the material inside the filter cylinder 2, and improve the solid-liquid separation effect; both of the two resistance plates 304 are annular.

[0032] The rotating shaft 3 includes: a first pushing plate 301, installed on the rotating shaft 3, in a spiral shape, used to convey the material; a second pushing plate 302, installed on the rotating shaft 3, one of the resistance plates 304 is arranged between the second pushing plate 302 and the first pushing plate 301, the second pushing plate 302 is in a spiral shape, used to convey the material; a third pushing plate 303, installed on the rotating shaft 3, the other resistance plate 304 is arranged between the third pushing plate 303 and the second pushing plate 302, the third pushing plate 303 is in a spiral shape, used to convey the material. The first pushing plate 301, the second pushing plate 302 and the third pushing plate 303 ensure the orderly movement of the material inside the filter cylinder 2. At the same time, the increasing pitch setting helps the gradual compression and separation of the material; the pitches of the first pushing plate 301, the second pushing plate 302 and the third pushing plate 303 are arranged in increasing order.

[0033] The outer cylinder 1 includes: two guide plates 101, installed inside the outer cylinder 1, symmetrically arranged, used to guide the flow direction of the liquid, guide the flow direction of the liquid, ensure the smooth discharge of the liquid from the outer cylinder 1, and prevent the liquid from flowing back or accumulating; a liquid outlet pipe 102, penetrating through the outer cylinder 1, the liquid outlet pipe 102 is arranged between the two guide plates 101, used to discharge the liquid inside the outer cylinder 1, ensure that the liquid after solid-liquid separation can be discharged in time, and keep the inside of the device clean; a feed pipe 103, installed on the outer cylinder 1, one end of the feed pipe 103 penetrates through the filter cylinder 2 and extends into its interior, used to convey the material to be treated into the filter cylinder 2; a power source 104, installed on the outer cylinder 1, the power shaft of the power source 104 is connected to the rotating shaft 3, used to provide rotational power for the rotating shaft 3, the power source 104 adopts a reduction motor, and a servo motor can also be used.

[0034] The projected shape of the deflector 101 is circular, and the diameter of one end of the deflector 101 and the diameter of the end close to the liquid outlet pipe 102 are arranged in increasing order successively.

[0035] The backpressure seat 4 is arranged on the rotating shaft 3 and contacts the discharge port of the filter cartridge 2. The backpressure seat 4 is configured such that when the material presses against the backpressure seat 4, the backpressure seat 4 moves away from the filter cartridge 2 on the rotating shaft 3. The backpressure seat 4 is used to provide a squeezing force for the material. When the material presses against the backpressure seat 4, it can move away from the filter cartridge 2 to provide a squeezing force for the material, which helps to improve the solid-liquid separation effect. The fixing plate 105 provides an installation point for the elastic member 106.

[0036] The outer cylinder 1 further includes: a fixing plate 105 installed at one end of the filter cartridge 2; an elastic member 106, one end of which is connected to the backpressure seat 4 and the other end is connected to the fixing plate 105. The elastic member 106 is used to provide elastic support for the backpressure seat 4. The elastic member 106 provides elastic support for the backpressure seat 4 to ensure that the backpressure seat 4 can move stably when being pressed by the material, and at the same time maintain a continuous squeezing force on the material. The elastic member 106 is made of a stainless steel spring.

[0037] During use, the power source 104 installed on the outer cylinder 1 is started. The power source 104 is connected to the rotating shaft 3 through a power shaft to provide rotational power for the rotating shaft 3. As the rotating shaft 3 rotates, the first pusher plate 301, the second pusher plate 302, and the third pusher plate 303 installed on the rotating shaft 3 start to rotate, effectively conveying the material to be processed from the feed pipe 103 into the filter cartridge 2. The material in the filter cartridge 2 is pushed by the pusher plate and blocked by the resistance plate 304, increasing the number of squeezing times and the distance of the material in the filter cartridge 2. The function of the filter cartridge 2 is to separate the solid particles from the liquid in the material, realizing the main function of solid-liquid separation. The separated liquid flows out through the pores of the filter cartridge 2 and is guided by two symmetrically arranged deflectors 101 in the outer cylinder 1 to the liquid outlet pipe 102. The deflectors 101 ensure the smooth discharge of the liquid from the outer cylinder 1 and prevent the liquid from flowing back or accumulating. In the filter cartridge 2, the solid particles are continuously pushed by the pusher plate and blocked by the resistance plate 304, and are gradually compressed and pushed towards the discharge port of the filter cartridge 2. When the solid particles press against the backpressure seat 4, the backpressure seat 4 moves away from the filter cartridge 2 on the rotating shaft 3 under the pressure, providing a further squeezing force for the solid particles. When the solid particles press against the backpressure seat 4, the elastic member 106 can ensure the stable movement of the backpressure seat 4 and at the same time maintain a continuous squeezing force on the solid particles. The fully squeezed solid particles finally discharge from the discharge port of the filter cartridge 2, and the equipment continues to operate, repeating the above steps to continuously process the material to be processed.

[0038] In summary, compared with the prior art, the following beneficial effects are achieved:

[0039] By designing two resistance plates 304 and arranging them at intervals along the rotation axis 3, the number of times and the distance of extrusion of the material in the filter cartridge 2 are increased. When the solid particles are pushed towards the discharge port, they can be subjected to more extrusion effects, improving the extrusion efficiency. The design of the resistance plates 304 not only increases the number of extrusions but also makes the movement path of the solid particles in the filter cartridge 2 longer, which helps the solid particles to be continuously extruded and separated over a longer distance, improving the solid-liquid separation effect.

[0040] By optimizing the design of the rotation axis 3, with the pitches of the first pushing plate 301, the second pushing plate 302, and the third pushing plate 303 increasing in sequence, it helps with the gradual compression and separation of the material, enabling the solid particles in the filter cartridge 2 to be subjected to a more uniform extrusion effect, improving the solid-liquid separation effect and the overall treatment quality of the sewage.

[0041] Accordingly, although the present utility model has been described herein with reference to its specific embodiments, modifications, various changes and substitutions are also within the above disclosure, and it should be understood that in some cases, some features of the present utility model will be adopted without corresponding use of other features under the premise of not departing from the scope and spirit of the proposed utility model. Therefore, many modifications can be made to adapt a particular environment or material to the substantial scope and spirit of the present utility model. The present utility model is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode contemplated for carrying out the present utility model, but the present utility model will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the present utility model will be determined only by the appended claims.

Claims

1. A solid-liquid separation device for sewage treatment, characterized in that: include: outer cylinder(1); A filter cartridge (2) is arranged inside the outer cartridge (1) and is used to separate solid particles and liquid in the material; A rotating shaft (3) is installed in the filter cartridge (2) and is configured to rotate in the filter cartridge (2). The rotating shaft (3) is used to transport materials. Two resistance plates (304) are installed in the filter cartridge (2) and are arranged at intervals along the direction of the rotating shaft (3) to increase the resistance during material transportation and increase the number and distance of material extrusion in the filter cartridge (2).

2. A solid-liquid separation device for sewage treatment according to claim 1, characterized in that: The rotating shaft (3) comprises: A first push plate (301), mounted on the rotating shaft (3), is spiral-shaped and is used to transport materials; A second push plate (302) is mounted on the rotating shaft (3), wherein a resistance plate (304) is arranged between the second push plate (302) and the first push plate (301), and the second push plate (302) is spiral-shaped and is used for conveying materials; The third push plate (303) is mounted on the rotating shaft (3), and another resistance plate (304) is arranged between the third push plate (303) and the second push plate (302). The third push plate (303) is spiral-shaped and is used for conveying materials.

3. A solid-liquid separation device for sewage treatment according to claim 2, characterized in that: The pitches of the first push plate (301), the second push plate (302) and the third push plate (303) are arranged to increase in sequence.

4. The solid-liquid separation equipment for sewage treatment according to claim 1, characterized in that: The outer cylinder (1) comprises: Two guide plates (101) are installed in the outer cylinder (1) and are symmetrically arranged to guide the flow direction of the liquid; A liquid outlet pipe (102) is arranged to penetrate the outer tube (1), and the liquid outlet pipe (102) is arranged between the two guide plates (101) and is used to discharge the liquid in the outer tube (1); A feed pipe (103) is installed on the outer cylinder (1), and one end of the feed pipe (103) penetrates the filter cylinder (2) and extends into the interior thereof, so as to transport the material to be processed into the filter cylinder (2).

5. A solid-liquid separation device for sewage treatment according to claim 4, characterized in that: The projection shape of the guide plate (101) is annular, and the diameter of one end of the guide plate (101) and the diameter of the end close to the liquid outlet pipe (102) are arranged to increase in sequence.

6. The solid-liquid separation equipment for sewage treatment according to claim 1, characterized in that: The outer cylinder (1) further comprises: A power source (104) is mounted on the outer cylinder (1); a power shaft of the power source (104) is connected to the rotating shaft (3) and is used to provide rotational power for the rotating shaft (3).

7. The solid-liquid separation equipment for sewage treatment according to claim 1, characterized in that: Also includes: A back-pressure seat (4) is arranged on the rotating shaft (3) and contacts the discharge port of the filter cartridge (2). The back-pressure seat (4) is arranged so that when the material presses the back-pressure seat (4), the back-pressure seat (4) moves on the rotating shaft (3) in a direction away from the filter cartridge (2). The back-pressure seat (4) is used to provide extrusion force for the material.

8. The solid-liquid separation equipment for sewage treatment according to claim 7, characterized in that: The outer cylinder (1) further comprises: A fixing plate (105) mounted on one end of the filter cartridge (2); An elastic member (106) has one end connected to the counter-pressure seat (4) and the other end connected to the fixing plate (105), and the elastic member (106) is used to provide elastic support for the counter-pressure seat (4).

9. The solid-liquid separation equipment for sewage treatment according to claim 1, characterized in that: Also includes: A support frame (5), the outer cylinder (1) is mounted on the support frame (5).

10. The solid-liquid separation equipment for sewage treatment according to claim 1, characterized in that: The two resistance plates (304) are both in the shape of a ring.

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