Anti-blocking filter device of polysulfone washing kettle
By introducing anti-clogging components and a quick-replacement filter plate design into the polysulfone washing kettle, the problems of filter clogging and cumbersome maintenance are solved, achieving efficient filtration and equipment maintenance, and meeting the continuous production requirements of polysulfone.
Patent Information
- Application Number
- CN202521804877.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-25
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-25
AI Technical Summary
The existing filtration devices of polysulfone washing kettles are prone to filter clogging due to particulate residue. If manual cleaning is not timely, the filtration efficiency will decrease. In addition, the traditional filter screen disassembly and replacement is time-consuming and cannot meet the needs of continuous production.
It adopts anti-clogging components, including a drive motor driving a rotating wheel and a cleaning brush, to automatically clean particles from the surface of the filter screen. It also uses a limit ball and a limit spring to enable quick replacement of the filter plate, avoiding clogging and simplifying the maintenance process.
It achieves automatic anti-clogging of the filter screen, improves the continuous capacity and maintenance efficiency of the filtration equipment, and ensures the continuous and efficient operation of polysulfone production.
Smart Images

Figure CN224672224U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water washing kettle filtration technology, and in particular to an anti-clogging filtration device for a polysulfone water washing kettle. Background Technology
[0002] In the production of polysulfone materials, the washing kettle is a key piece of equipment used to remove residual solvents and impurities from the polymer. The stable operation of its filtration system directly affects product purity and production efficiency. An anti-clogging filtration device for the polysulfone washing kettle, as a core component at the kettle's discharge end, needs to efficiently filter the washed liquid to intercept solid particles and prevent subsequent pipeline blockage or equipment damage. It is an important technical equipment to ensure continuous and high-quality polysulfone production.
[0003] In existing technologies, the filtration devices of polysulfone washing kettles mostly adopt a structure of fixed filter screens combined with manual periodic cleaning. The technical principle is to intercept particulate matter in the feed liquid through the pores of the filter screen. The filter screen material is mostly stainless steel or high-polymer corrosion-resistant material, and the filtration accuracy is selected according to process requirements. The cleaning method mainly relies on manual disassembly of the filter screen for rinsing or replacement after the machine is stopped. Some equipment will add backwashing pipes to assist in cleaning, but this still requires interruption of the production process.
[0004] However, existing filtration devices are prone to filter clogging due to particulate matter residue. After long-term filtration, particulate matter accumulates on the filter surface to form a filter cake, which is difficult to clean manually in real time, leading to increased filtration resistance, decreased flow rate, and severely affecting filtration efficiency. At the same time, traditional filter screens are fixed to the equipment with bolts, and disassembly and replacement require a lot of downtime. Frequent disassembly and assembly can also lead to a decline in sealing performance, making it difficult to meet the high-efficiency maintenance requirements of continuous production. Therefore, an anti-clogging filtration device for polysulfone washing kettle is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an anti-clogging filter device for a polysulfone washing kettle, which aims to improve the problem of filter clogging caused by untimely manual cleaning.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An anti-clogging filtration device for a polysulfone washing kettle includes a filter box, an anti-clogging component is provided inside the filter box, and a filter component is provided on the side of the anti-clogging component;
[0008] The anti-clogging component includes a fixed base, the outer wall of which is fixedly connected to the inner wall of the filter box. A primary filter plate is fixedly connected to one side of the fixed base. Guide grooves are provided on both sides of the fixed base. Multiple rotating wheels are rotatably connected inside one of the guide grooves. The multiple rotating wheels are arranged in a linear array. A drive motor is provided on the side of the top rotating wheel. The outer wall of the drive motor is fixedly connected to the inside of the fixed base. The output end of the drive motor is fixedly connected to the side wall of the top rotating wheel. Conveyor belts are slidably connected to the outer walls of the multiple rotating wheels. Connecting blocks are fixedly connected to the outer walls of the conveyor belts. Cleaning brushes are fixedly connected to the side walls of the connecting blocks. A slider is fixedly connected to the other end of the cleaning brush. The outer wall of the slider is slidably connected to the inside of the guide groove on the other side.
[0009] As a further description of the above technical solution:
[0010] A drain trough is provided inside the lower part of the fixed base, and a sludge collection box is provided at the bottom of the drain trough. The upper part of the outer wall of the sludge collection box is slidably connected to the lower part of the filter box.
[0011] As a further description of the above technical solution:
[0012] An inlet pipe is fixedly connected to one side of the outer wall of the filter box, and an outlet pipe is fixedly connected to the other side of the outer wall of the filter box. The inlet pipe and the outlet pipe communicate with the interior of the filter box.
[0013] As a further description of the above technical solution:
[0014] The filter box is equipped with support feet at all four corners, and the tops of the support feet are fixedly connected to the bottom of the outer wall of the filter box.
[0015] As a further description of the above technical solution:
[0016] The filter assembly includes a second fixing base, the outer wall of which is fixedly connected to the inner wall of the filter box, and a filter plate is slidably connected inside the second fixing base.
[0017] As a further description of the above technical solution:
[0018] A handle is fixedly connected to the top of the filter plate, and the handle is located on the top of the outer wall of the filter box.
[0019] As a further description of the above technical solution:
[0020] Multiple limiting balls are provided on both the left and right sides of the filter plate. The multiple limiting balls are arranged in a linear array inside the second fixed base. The side walls of the limiting balls are fixedly connected to limiting plates, and the outer walls of the limiting plates are slidably connected inside the second fixed base.
[0021] As a further description of the above technical solution:
[0022] A limiting spring is provided on the side of the limiting plate. One end of the limiting spring is fixedly connected to the inside of the second fixing seat, and the other end of the limiting spring is fixedly connected to the side wall of the limiting plate.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, after the filtration operation is completed, the drive motor drives the top rotating wheel to rotate. The rotation of multiple rotating wheels drives the transmission displacement, which in turn drives the cleaning brush to move through the connecting block, cleaning the residual particles on the surface of the primary filter plate. This achieves the effect of preventing particles from clogging the primary filter plate, solving the problem of filter screen clogging caused by untimely manual cleaning in traditional methods, and improving the continuous filtration capacity of the equipment.
[0025] 2. In this utility model, the operator pulls the old plate out of the fixed seat by the handle and then inserts the new filter plate. After it is fully inserted, the limit spring pushes the limit plate to reset, and the limit ball is inserted into the groove of the filter plate to complete the limit. This achieves the effect of quick replacement of the filter plate, solves the problem of cumbersome and time-consuming disassembly of traditional bolt fixing, and improves the equipment maintenance efficiency and operation convenience. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of an anti-clogging filter device for a polysulfone water washing kettle proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the filter box structure of an anti-clogging filter device for a polysulfone washing kettle proposed in this utility model;
[0028] Figure 3 This is a schematic diagram of the primary filter plate structure of an anti-clogging filtration device for a polysulfone washing kettle proposed in this utility model.
[0029] Figure 4 This is a schematic diagram of the filter plate structure of an anti-clogging filter device for a polysulfone washing kettle proposed in this utility model.
[0030] Figure 5 This is a magnified view of point A in diagram 4.
[0031] Legend:
[0032] 1. Filter box; 2. Support feet; 3. Inlet pipe; 4. Outlet pipe; 5. Fixing base one; 6. Fixing base two; 7. Primary filter plate; 8. Drive motor; 9. Rotary wheel; 10. Conveyor belt; 11. Connecting block; 12. Cleaning brush; 13. Slider; 14. Guide groove; 15. Sewage discharge groove; 16. Sewage collection box; 17. Filter plate; 18. Handle; 19. Limiting spring; 20. Limiting plate; 21. Limiting ball. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figures 1-3 This utility model provides an embodiment of an anti-clogging filtration device for a polysulfone washing kettle, comprising a filter box 1, which is welded from 304 stainless steel and has a polished inner wall surface. Serving as the main structure of the device, the filter box 1 houses the anti-clogging components and the filtration components, providing a closed space for liquid filtration. Support feet 2 at the four corners of the filter box 1 are made of square steel pipes and are bolted to the bottom of the outer wall of the filter box 1 to support it and ensure stable placement. An inlet pipe 3, made of 316 stainless steel seamless pipe, is fixed to one side of the outer wall of the filter box 1 via a flange and is used to connect to the drain pipe of the polysulfone washing kettle, introducing the liquid to be filtered into the filter box 1. An outlet pipe 4, also made of 316 stainless steel seamless pipe, is connected to the interior of the filter box 1 and is used to discharge the filtered liquid.
[0035] The mounting base 5 of the anti-clogging component is welded from stainless steel plate. Its outer wall is bolted to the inner wall of the filter box 1. It is used to install the primary filter plate 7 and the cleaning component, and provides structural support. The primary filter plate 7, which is bolted to one side of the mounting base 5, is made of 304 stainless steel mesh with a mesh diameter of 5mm. It is used to intercept larger particles in the liquid and prevent subsequent filtration components from clogging. The guide grooves 14, which are milled and have a rectangular cross-section, are used to provide sliding or rotating tracks for the rollers 9 and sliders 13. Multiple rollers 9, which are made of engineering plastic and are rotatably connected in a linear array inside one guide groove 14, are used to support the conveyor belt 10 and reduce its movement resistance. The drive motor 8 on the side of the top roller 9 is a small three-phase asynchronous motor. Its outer wall is fixed to the inside of the mounting base 5 through a motor bracket. Its output end is fixed to the side wall of the top roller 9 through a key connection. It is used to provide power to the cleaning component. This is existing technology and will not be described in detail here. The outer walls of the multiple rollers 9 are slidably connected. The conveyor belt 10, made of neoprene rubber with anti-slip textured surface, transmits power and drives the connecting block 11 to move synchronously. The connecting block 11, made of ABS engineering plastic and fixed to the outer wall of the conveyor belt 10 by bolts, is used to connect the conveyor belt 10 and the cleaning brush 12 and transmit motion. The cleaning brush 12, made of nylon bristles, is fixedly connected to the side wall of the connecting block 11 and is used to clean residual particles on the surface of the primary filter plate 7. The slider 13, made of engineering plastic, is fixedly connected to the other end of the cleaning brush 12 and has an outer wall that is flush with the surface of the primary filter plate 7. The inner wall of the guide groove 14 on the other side forms a clearance fit and slides inside the guide groove 14 to limit the movement direction of the cleaning brush 12 and ensure that it slides smoothly along the surface of the primary filter plate 7. The drain trough 15, which is milled and opened at the bottom of the fixed base 5, has a funnel-shaped cross section and is used to guide the cleaned particles into the collection box 16. The collection box 16 at the bottom of the drain trough 15 is made of PP plastic injection molding. The upper part of the outer wall forms a sliding fit with the slide rail at the bottom of the filter box 1 to collect particles for easy subsequent cleaning.
[0036] Reference Figure 4 and Figure 5The filter assembly mounting base 26 is welded from stainless steel plate, and its outer wall is bolted to the inner wall of the filter box 1. Located on the side of the anti-clogging component, it is used to install the filter plate 17 and provide stable support. The filter plate 17, which is slidably connected inside the mounting base 26, is used for fine filtration of the liquid after primary filtration to further remove fine particles. The handle 18, which is bolted to the top of the filter plate 17, is made of ABS engineering plastic injection molding and has anti-slip texture on the surface. It is located on the top of the outer wall of the filter box 1, making it easy for operators to pull out the filter plate 17 for replacement. Multiple handles on the left and right sides of the filter plate 17 are arranged in a linear array. The positioning ball 21, made of bearing steel, is used to lock into the groove of the filter plate 17 for positioning and fixation. The side wall of the positioning ball 21 is fixedly connected by a positioning plate 20, made of 304 stainless steel plate with a thickness of 2mm, through welding. The outer wall of the plate forms a clearance fit with the sliding groove inside the second fixing seat 6, and is slidably connected inside the second fixing seat 6 to limit the movement direction of the positioning ball 21. The positioning spring 19, made of spring steel, is set on the side of the positioning plate 20. One end is welded to the spring seat inside the second fixing seat 6, and the other end is welded to the side wall of the positioning plate 20 to provide a continuous outward pushing force for the positioning ball 21 to ensure reliable positioning.
[0037] Working principle: When using the anti-clogging filter device for the polysulfone washing kettle, the operator first connects the water pipe of the polysulfone washing kettle to the inlet pipe 3, and then opens the valve. The liquid in the washing kettle is discharged into the filter box 1 through the inlet pipe 3. Larger particles in the liquid are intercepted by the primary filter plate 7, and then filtered again through the filter plate 17. Finally, it is discharged through the outlet pipe 4. After the filtration operation is completed, the drive motor 8 inside the fixed base 5 drives the top rotating wheel 9 to rotate. The rotation of the top rotating wheel 9 drives the other rotating wheels 9 to rotate through the conveyor belt 10. The rotation of the conveyor belt 10 drives the cleaning brush 12 through the connecting block 11. The slider 13 at the other end of the cleaning brush 12 slides in the guide groove 14. The cleaning brush 12 slides on the surface of the primary filter plate 7 to clean the particles remaining on the surface of the primary filter plate 7. The particles fall into the collection box 16 through the drain trough 15. The operator can then remove the collection box 16 to clean the particles inside, thereby preventing particles from clogging the primary filter plate 7.
[0038] When the filter plate 17 needs to be replaced, the operator pulls the filter plate 17 out of the fixed base 2 6 using the handle 18, and then inserts the new filter plate 17 into the fixed base 2 6. First, the outer walls of the filter plate 17 will press the limiting balls 21 on both sides of the fixed base 2 6. The limiting balls 21 drive the limiting plate 20 to retract into the fixed base 2 6, and compress the limiting spring 19. When the filter plate 17 is fully inserted into the fixed base 2 6, the limiting spring 19 pushes the limiting plate 20 back to its original position, thereby causing the limiting balls 21 to be locked into the grooves on both sides of the filter plate 17, thus completing the limiting of the filter plate 17 and achieving the effect of quickly replacing the filter plate 17.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A clogging-resistant filtration device for a polysulfone washing kettle, comprising a filter box (1), characterized in that: The filter box (1) is equipped with an anti-clogging component inside, and a filter component is provided on the side of the anti-clogging component; The anti-clogging component includes a fixed base (5), the outer wall of which is fixedly connected to the inner wall of the filter box (1). A primary filter plate (7) is fixedly connected to one side of the interior of the fixed base (5). Guide grooves (14) are provided on both sides of the interior of the fixed base (5). Multiple rotating wheels (9) are rotatably connected inside one of the guide grooves (14). The multiple rotating wheels (9) are arranged in a linear array. A drive motor (8) is provided on the side of the top rotating wheel (9). The outer wall of the drive motor (8) is fixedly connected to the inner wall of the filter box (1). The drive motor (8) is fixedly connected to the inside of the fixed base (5). The output end of the drive motor (8) is fixedly connected to the side wall of the top wheel (9). A conveyor belt (10) is slidably connected to the outer wall of the multiple wheels (9). A connecting block (11) is fixedly connected to the outer wall of the conveyor belt (10). A cleaning brush (12) is fixedly connected to the side wall of the connecting block (11). A slider (13) is fixedly connected to the other end of the cleaning brush (12). The outer wall of the slider (13) is slidably connected to the inside of the guide groove (14) on the other side.
2. The anti-clogging filter device for a polysulfone washing kettle according to claim 1, characterized in that: A drain trough (15) is provided at the bottom of the fixed base (5), and a sludge collection box (16) is provided at the bottom of the drain trough (15). The upper part of the outer wall of the sludge collection box (16) is slidably connected to the bottom of the filter box (1).
3. The anti-clogging filter device for a polysulfone water washing kettle according to claim 1, characterized in that: A liquid inlet pipe (3) is fixedly connected to one side of the outer wall of the filter box (1), and a liquid outlet pipe (4) is fixedly connected to the other side of the outer wall of the filter box (1). The liquid inlet pipe (3) and the liquid outlet pipe (4) are connected to the interior of the filter box (1).
4. The anti-clogging filter device for a polysulfone washing kettle according to claim 1, characterized in that: The filter box (1) is provided with support feet (2) at the four corners below, and the tops of the multiple support feet (2) are fixedly connected to the bottom of the outer wall of the filter box (1).
5. The anti-clogging filter device for a polysulfone washing kettle according to claim 1, characterized in that: The filter assembly includes a second fixing seat (6), the outer wall of which is fixedly connected to the inner wall of the filter box (1), and a filter plate (17) is slidably connected inside the second fixing seat (6).
6. The anti-clogging filter device for a polysulfone washing kettle according to claim 5, characterized in that: A handle (18) is fixedly connected to the top of the filter plate (17), and the handle (18) is located on the top of the outer wall of the filter box (1).
7. The anti-clogging filter device for a polysulfone washing kettle according to claim 6, characterized in that: Multiple limiting balls (21) are provided on both the left and right sides of the filter plate (17). The multiple limiting balls (21) are arranged in a linear array inside the fixed seat (6). The side wall of the limiting ball (21) is fixedly connected to the limiting plate (20), and the outer wall of the limiting plate (20) is slidably connected inside the fixed seat (6).
8. The anti-clogging filter device for a polysulfone washing kettle according to claim 7, characterized in that: A limiting spring (19) is provided on the side of the limiting plate (20). One end of the limiting spring (19) is fixedly connected to the inside of the fixing seat (6), and the other end of the limiting spring (19) is fixedly connected to the side wall of the limiting plate (20).