Solvent recycling device in filter membrane production

Abstract

The utility model discloses a solvent recycling device in filter membrane production, and relates to the technical field of filter membrane production, the solvent recycling device comprises an equipment body, one side of the equipment body is fixedly connected with a waste liquid box, the interior of the waste liquid box is fixedly connected with two symmetrical second sliding rails, the interiors of the second sliding rails are slidably connected with a mounting frame, and the mounting frame is fixedly connected with the equipment body. The interior of the mounting frame is fixedly connected with a collecting frame, the interior of the collecting frame is fixedly connected with a filter plate, mesh holes are formed in the filter plate, impurities at the top of the filter plate can be cleaned through a brush by utilizing a cleaning frame, and the impurities enter the collecting frame to be collected; according to the invention, impurities at the top of the filter plate can be more smoothly collected in a centralized manner, and the situation that the impurities are accumulated at the top of the filter plate for a long time, so that meshes of the filter plate are blocked and the waste liquid filtering speed is reduced is reduced to a certain extent.

Description

Technical Field

[0001] This application relates to the field of filter membrane production technology, and in particular to a solvent recycling device in filter membrane production. Background Technology

[0002] Hollow fiber membranes are fibrous membranes with a self-supporting function. They are made from polysulfone and dimethylacetamide as raw materials, processed into hollow filaments, and then coated with highly permeable polymers, giving them selective permeation characteristics. In the production process of hollow fiber membranes, it is usually necessary to add some hydrophilic polymers to improve the membrane performance. Since a large amount of organic waste liquid is inevitably generated during the membrane production process, the main component of which is the aforementioned hydrophilic additives, the simultaneous discharge of this waste liquid will cause a lot of waste and also pollute the environment.

[0003] A search revealed a Chinese patent publication number, CN221244290U, which discloses a device for recovering and utilizing solvent additives used in the production process of hollow fiber ultrafiltration membranes. First, waste liquid enters the waste liquid tank through the inlet pipe, is filtered through a filter screen, and then enters the air preheater. The air preheater preheats the liquid, which is then introduced into the reaction vessel through a feed pipe. At this time, the controller drives the motor to start, enabling the stirring shaft to mix and stir the liquid in the reaction vessel. This not only accelerates evaporation but also ensures more uniform solvent heating. Steam rises into the guide pipe, and the solenoid valve is activated, allowing cold water from the cold water tank to enter the circulation pipe to cool the steam.

[0004] Although the aforementioned patent enables the stirring shaft to mix and stir the liquid in the reactor, the aforementioned device still has the following problems: During the use of the device, the waste liquid first enters the waste liquid tank through the inlet pipe, and then enters the air preheater after being filtered by the filter screen. However, during long-term use, impurities tend to accumulate and adhere to the top of the filter screen, causing the mesh of the filter plate to become clogged, which reduces the waste liquid filtration speed. In order to address the above situation, technical innovation is carried out on the basis of the existing device. Utility Model Content

[0005] To address the problem of impurities accumulating and adhering to the top of the filter screen, causing clogging of the filter plate's mesh, this application provides a solvent recycling device for filter membrane production.

[0006] The solvent recycling device in the production of filter membranes provided in this application adopts the following technical solution:

[0007] A solvent recycling device for filter membrane production includes a main body. A waste liquid tank is fixedly connected to one side of the main body. Two symmetrical second slide rails are fixedly connected inside the waste liquid tank. An installation frame is slidably connected inside the second slide rails. A collection frame is fixedly connected inside the installation frame. A filter plate is fixedly connected inside the collection frame. The filter plate has mesh holes. Mesh holes are also formed on the side plate of the collection frame. A support block is fixedly connected to the upper surface inside the waste liquid tank. A moving groove is formed at the bottom of the support block. A threaded rod extending to the outside of the waste liquid tank is rotatably connected inside the moving groove. A cleaning rack extending to the outside of the moving groove is slidably connected inside the moving groove. The cleaning rack has a T-shaped cross-section and a brush is provided at the bottom of the cleaning rack.

[0008] Preferably, a maintenance groove is provided on the front side of the waste liquid tank, and a maintenance plate is provided inside the maintenance groove. The maintenance plate is fixed to the waste liquid tank by bolts.

[0009] By adopting the above technical solution and fixing the maintenance plate with bolts, the internal structure maintenance of the waste liquid tank becomes more convenient.

[0010] Preferably, a motor is fixedly connected to the front side of the waste liquid tank, and the output end of the motor rotates through the interior of the waste liquid tank and extends into the interior of the moving trough. The output end of the waste liquid tank is fixedly connected to one end of the threaded rod.

[0011] By adopting the above technical solution, the device can be driven more smoothly by the motor.

[0012] Preferably, the waste liquid tank is rotatably connected to a rotating shaft extending to the outside of the waste liquid tank, a cam is fixedly connected to the outer surface of the rotating shaft, a top plate is provided inside the waste liquid tank, a top rod is fixedly connected to the top of the top plate, and a drainage groove is provided on the top plate.

[0013] By adopting the above technical solution, the mesh holes on the filter plate can be cleared by using the top rod.

[0014] Preferably, a first slide rail is fixedly connected inside the waste liquid tank, and a limiting frame that is slidably connected to the bottom of the top plate is fixedly connected to the inside of the first slide rail.

[0015] By adopting the above technical solution, the movement direction of the top plate is restricted through the cooperation of the first slide rail and the limiting frame.

[0016] Preferably, both the rotating shaft and the threaded rod are fixedly connected to drive wheels on their outer surfaces outside the waste liquid tank, and the outer surfaces of the drive wheels are connected to belts for transmission, with the two drive wheels being driven by the belts.

[0017] By adopting the above technical solution, the two drive wheels are driven by a belt, which enables the rotating shaft to rotate more smoothly.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. The cleaning rack can be used with a brush to clean the impurities on the top of the filter plate and collect them in the collection frame. This allows the impurities on the top of the filter plate to be collected more easily and reduces the possibility of impurities accumulating on the top of the filter plate for a long time, which can clog the filter plate mesh, reduce the filtration speed of waste liquid, facilitate solvent recycling in the production of filter membranes, and make it easier for staff to use the device.

[0020] 2. The rotating shaft drives the cam to rotate, so that the top plate can clear the mesh on the filter plate through the push rod, and the filter plate can more effectively block and filter impurities in the waste liquid. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a solvent recycling device in the production of a filter membrane according to this application;

[0022] Figure 2 This is a schematic diagram of the maintenance board in this application;

[0023] Figure 3 This is a schematic diagram of the transmission wheel in this application;

[0024] Figure 4 This is a schematic diagram of the waste liquid tank in this application;

[0025] Figure 5 This is a schematic diagram of the installation frame of this application.

[0026] Reference numerals: 1. Equipment body; 2. Waste liquid tank; 3. Maintenance plate; 4. Maintenance tank; 5. Motor; 6. Support block; 7. Moving trough; 8. Threaded rod; 9. Cleaning rack;

[0027] 10. Rotating shaft; 11. Transmission wheel; 12. Belt; 13. Cam; 14. First slide rail; 15. Limiting frame; 16. Second slide rail; 17. Mounting frame; 18. Collection frame; 19. Filter plate; 20. Top plate; 21. Top rod. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0029] This application discloses a solvent recycling device in the production of filter membranes.

[0030] A solvent recycling device for filter membrane production includes a main body 1, which is an existing structure and will not be described in detail here. A waste liquid tank 2 for filtration is fixedly connected to one side of the main body 1. A feed pipe is provided on the waste liquid tank 2. The solvent used in filter membrane production is filtered through the feed pipe. The filtered solution enters the interior of the main body 1 for recycling. Two symmetrical second slide rails 16 for movement are fixedly connected inside the waste liquid tank 2. A mounting frame 17 for support is slidably connected inside the second slide rails 16. A collection frame 18 for collecting impurities is fixedly connected inside the mounting frame 17. A filter plate 19 for filtering impurities is fixedly connected inside the collection frame 18. The filter plate 19 has mesh holes. The side plate of the collection frame 18 is also provided with mesh holes, which can block and filter impurities in the waste liquid through the filter plate 19. At the same time, the mesh holes on the collection frame 18 allow the solution to be discharged more smoothly during the collection of impurities. The upper surface inside the waste liquid tank 2 is fixedly connected to a support block 6 for support. The bottom of the support block 6 is provided with a moving groove 7 for movement. The inside of the moving groove 7 is rotatably connected to a threaded rod 8 extending to the outside of the waste liquid tank 2. The inside of the moving groove 7 is slidably connected to a cleaning rack 9 extending to the outside of the moving groove 7. The cleaning rack 9 has a T-shaped cross section and a brush is provided at the bottom of the cleaning rack 9. The cleaning rack 9 can clean the impurities on the top of the filter plate 19 through the brush.

[0031] A maintenance groove 4 is provided on the front side of the waste liquid tank 2. A maintenance plate 3 for maintenance is provided inside the maintenance groove 4. The maintenance plate 3 is fixed to the waste liquid tank 2 by bolts. The bolts of the maintenance plate 3 make the internal structure maintenance of the waste liquid tank 2 more convenient.

[0032] A motor 5 for transmission is fixedly connected to the front side of the waste liquid tank 2. The motor 5 is an existing structure and will not be described in detail here. The output end of the motor 5 rotates through the interior of the waste liquid tank 2 and extends into the interior of the moving groove 7. The output end of the waste liquid tank 2 is fixedly connected to one end of the threaded rod 8.

[0033] The waste liquid tank 2 is rotatably connected to a rotating shaft 10 extending to the outside of the waste liquid tank 2. A cam 13 for transmission is fixedly connected to the outer surface of the rotating shaft 10. The waste liquid tank 2 is provided with a top plate 20. A top rod 21 for unblocking is fixedly connected to the top of the top plate 20. A drainage groove is provided on the top plate 20. The rotating shaft 10 drives the cam 13 to rotate, so that the top plate 20 can unblock the mesh on the filter plate 19 through the top rod 21, and make the filter plate 19 more effective in blocking and filtering impurities in the waste liquid, and make the recycling of waste liquid more convenient. The top plate 20 is located between the filter plate 19 and the rotating shaft 10.

[0034] A first slide rail 14 is fixedly connected inside the waste liquid tank 2, and a limiting frame 15 which is slidably connected inside the first slide rail 14 is fixedly connected to the bottom of the top plate 20. Through the mutual cooperation of the first slide rail 14 and the limiting frame 15, the moving direction of the top plate 20 is restricted.

[0035] Drive wheels 11 are fixedly connected to the surfaces of the rotating shaft 10 and the threaded rod 8 outside the waste liquid tank 2. A belt 12 is connected to the outer surface of the drive wheels 11. The two drive wheels 11 are driven by the belt 12. By the staff starting the motor 5, the motor 5 drives the threaded rod 8 to rotate forward and backward. The threaded rod 8 drives the cleaning frame 9 to move reciprocally under the restriction of the moving groove 7, so that the cleaning frame 9 can clean the impurities on the top of the filter plate 19 through the brush.

[0036] Among them, there are also structures such as a power supply, wires, a controller, and a microcomputer that are matched with the motor 5 in this solution. Since they are not the main structures, they will not be described further.

[0037] The implementation principle of a solvent recycling device in the production of a filter membrane in an embodiment of this application is as follows: Through the feed pipe, the solvent in the production of the filter membrane enters the inside of the waste liquid tank 2 for filtration. The filtered solution enters the inside of the equipment body 1 for recycling. By the staff starting the motor 5, the motor 5 drives the threaded rod 8 to rotate forward and backward. The threaded rod 8 drives the cleaning frame 9 to move reciprocally under the restriction of the moving groove 7, so that the cleaning frame 9 can clean the impurities on the top of the filter plate 19 through the brush, and make the impurities enter the inside of the collection box 18 for collection, so that the impurities on the top of the filter plate 19 can be more smoothly collected centrally, and to a certain extent, reduce the situation that impurities accumulate on the top of the filter plate 19 for a long time, causing the mesh holes of the filter plate 19 to become blocked and the waste liquid filtration speed to decrease.

[0038] The two drive wheels 11 are driven by the belt 12. The drive wheel 11 drives the rotating shaft 10 to rotate. The rotating shaft 10 drives the cam 13 to rotate, so that the top plate 20 can dredge the mesh holes on the filter plate 19 through the ejector rod 21, and make the filter plate 19 more smoothly block and filter the impurities in the waste liquid, and make the recycling of the waste liquid more convenient.

[0039] The above are only optional embodiments of the present disclosure and are not used to limit the present disclosure. For those skilled in the art, the present disclosure can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A solvent recycling device for filter membrane production, comprising a device body (1), wherein a waste liquid tank (2) is fixedly connected to one side of the device body (1), characterized in that: The waste liquid tank (2) has two symmetrical second slide rails (16) fixedly connected inside. The second slide rails (16) have a mounting frame (17) slidably connected inside. The mounting frame (17) has a collection frame (18) fixedly connected inside. The collection frame (18) has a filter plate (19) fixedly connected inside. The filter plate (19) has a mesh hole. The side plate of the collection frame (18) also has a mesh hole. The upper surface inside the waste liquid tank (2) has a support block (6) fixedly connected inside. The bottom of the support block (6) has a moving groove (7). The moving groove (7) has a threaded rod (8) rotatably connected inside, extending to the outside of the waste liquid tank (2). The moving groove (7) has a cleaning rack (9) slidably connected inside, extending to the outside of the moving groove (7). The cleaning rack (9) has a T-shaped cross section. The bottom of the cleaning rack (9) is provided with a brush.

2. The solvent recycling device in the production of a filter membrane according to claim 1, characterized in that: The waste liquid tank (2) has a maintenance groove (4) on its front side, and a maintenance plate (3) is installed inside the maintenance groove (4). The maintenance plate (3) is fixed to the waste liquid tank (2) by bolts.

3. The solvent recycling device in the production of a filter membrane according to claim 1, characterized in that: A motor (5) is fixedly connected to the front side of the waste liquid tank (2). The output end of the motor (5) rotates through the interior of the waste liquid tank (2) and extends into the interior of the moving trough (7). The output end of the waste liquid tank (2) is fixedly connected to one end of the threaded rod (8).

4. The solvent recycling device in the production of a filter membrane according to claim 1, characterized in that: The waste liquid tank (2) is rotatably connected to a rotating shaft (10) extending to the outside of the waste liquid tank (2), and a cam (13) is fixedly connected to the outer surface of the rotating shaft (10).

5. A solvent recycling device in the production of a filter membrane according to claim 4, characterized in that: The waste liquid tank (2) is provided with a top plate (20) inside, and a top rod (21) is fixedly connected to the top of the top plate (20). A drainage groove is provided on the top plate (20).

6. A solvent recycling device in the production of a filter membrane according to claim 5, characterized in that: The waste liquid tank (2) is fixedly connected to the inside of a first slide rail (14), and the bottom of the top plate (20) is fixedly connected to a limiting frame (15) that is slidably connected to the inside of the first slide rail (14).

7. A solvent recycling device in the production of a filter membrane according to claim 6, characterized in that: The rotating shaft (10) and the threaded rod (8) are both fixedly connected to the surface of the waste liquid tank (2) with a drive wheel (11), and the outer surface of the drive wheel (11) is connected to a belt (12).

8. A solvent recycling device in the production of a filter membrane according to claim 7, characterized in that: The two drive wheels (11) are driven by a belt (12).

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