Filter for discharging based on polymeric kettle

By designing a filter structure with external and internal filters, combined with sealing and adjustment components, the problem of filter clogging was solved, achieving efficient filtration and convenient maintenance, and improving the filtration effect at the outlet of the polymerization reactor.

CN224167011UActive Publication Date: 2026-04-28CHIPING XINFA POLYVINGL CHLORIDE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHIPING XINFA POLYVINGL CHLORIDE CO LTD
Filing Date
2025-02-11
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The filter screen of the existing polymerization reactor outlet filter is prone to clogging after use, which affects the filtration effect.

Method used

A filter structure including an outer filter and an inner filter is designed. The sealing performance is improved by sealing components and adjustment components, and a detachable connection method is adopted for easy cleaning and maintenance.

Benefits of technology

It achieves dual-layer filtration, improves filtration efficiency, ensures the stability of the filtration process and facilitates maintenance, prevents material leakage, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of filters, and discloses a filter for discharging based on a polymeric kettle, which comprises a processing tank, the top of the processing tank is detachably connected with a cover plate, the top of the cover plate is fixedly connected with a protective box, the inside of the protective box is fixedly connected with a motor, the driving end of the motor is fixedly connected with a fixed column, and the fixed column is fixedly connected with a filter. An outer filter screen is detachably connected to the exterior of the fixing column, an inner filter screen is detachably connected to the interior of the outer filter screen, a connecting base is fixedly connected to the top of the outer filter screen, a mounting base is fixedly connected to the top of the outer filter screen, and a sealing assembly is arranged in the mounting base. According to the utility model, the outer filter screen and the inner filter screen can be quickly mounted, so that the subsequent cleaning of the outer filter screen and the inner filter screen is facilitated, the filtering effect is ensured, the processing cover plate is conveniently opened in time to maintain the interior of the processing tank, and the normal operation of the device is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a filter for discharging material from a polymerization reactor. Background Technology

[0002] A polymerization reactor is a reaction vessel equipped with a stirring device, primarily used to convert monomers into polymers through polymerization reactions. During polymerization, it provides a relatively closed environment, allowing various polymerization reactions to proceed under specific conditions such as temperature, pressure, and stirring speed. This enables control over many aspects of the polymer's properties, including molecular weight, molecular structure, and performance. A filter is required at the reactor's outlet to prevent waste material from clogging the outlet.

[0003] The discharge port filter of the polymerization reactor is a screen filter. The filter structure generally includes a filter cylinder and a filter element assembly. When the filter is working, the liquid passes through the filter screen, and the particulate impurities contained in the liquid are blocked by the filter screen to achieve filtration.

[0004] In the prior art, some filters typically have the filter screen fixed to the device during use to block impurities. However, if the filter screen is not cleaned in time after use, it will cause blockage and affect the filtration effect. Therefore, a filter based on the discharge of the polymerization reactor is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a filter for discharging from a polymerization reactor, aiming to improve the problem in the prior art where the filter screen cannot be cleaned in time after use, which causes blockage and affects the filtration effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A filter for discharging from a polymerization reactor includes a processing tank. A cover plate is detachably connected to the top of the processing tank. A protective box is fixedly connected to the top of the cover plate. A motor is fixedly connected inside the protective box. A fixing column is fixedly connected to the drive end of the motor. An outer filter screen is detachably connected to the outside of the fixing column. An inner filter screen is detachably connected to the inside of the outer filter screen. A connecting seat is fixedly connected to the top of the outer filter screen. A mounting seat is fixedly connected to the top of the outer filter screen. A sealing component is provided inside the mounting seat to increase the sealing performance between the outer and inner filter screens. Adjustment components are provided on both the left and right sides of the cover plate to increase the stability of the connection between the processing tank and the cover plate.

[0008] As a further description of the above technical solution:

[0009] The sealing assembly includes a sealing ring, the outer side of which is slidably connected to the inside of the connecting seat, a fixing steel wire is slidably connected to the inside of the mounting seat, and multiple rubber blocks are fixedly connected to the outside of the fixing steel wire.

[0010] As a further description of the above technical solution:

[0011] A flange ring is detachably connected to the top of the mounting base, and multiple fixing bolts are detachably connected to the inside of the connecting base;

[0012] As a further description of the above technical solution:

[0013] The outer part of the fixing bolt is slidably connected to the inside of the mounting base and the inside of the flange ring, and the outer part of the rubber block is in contact with the inside of the mounting base;

[0014] As a further description of the above technical solution:

[0015] The adjustment assembly includes an upper clamping plate, which is fixedly connected to the outside of the cover plate. Lower clamping plates are fixedly connected to the left and right sides of the outside of the processing tank. Limiting posts are slidably connected to the inside of the upper clamping plate and the inside of the lower clamping plate. A limiting plate is detachably connected to the bottom of the limiting post, and a spring is sleeved on the outside of the limiting post.

[0016] As a further description of the above technical solution:

[0017] One end of the spring is fixedly connected to the outside of the limiting post, and the other end of the spring is fixedly connected to the top of the upper clamping plate.

[0018] As a further description of the above technical solution:

[0019] The upper clamping plate and the lower clamping plate are both slidably connected to adjusting columns, and the adjusting columns are threaded with nuts.

[0020] As a further description of the above technical solution:

[0021] The processing tank is fixedly connected to the front side with a feed inlet and the processing tank is fixedly connected to the right side with a discharge outlet.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by placing the inner filter screen inside the outer filter screen, the material can be filtered in two layers. Then, the fixing wire is placed inside the mounting base, and then the flange ring and sealing ring are placed inside the mounting base in sequence. Finally, the connecting base, mounting base and flange ring are fixed with fixing bolts, which can quickly install the outer filter screen and the inner filter screen. The internal sealing ring and rubber block can increase the sealing of the connection, facilitate the subsequent cleaning of the outer filter screen and the inner filter screen, and ensure the filtration effect.

[0024] 2. In this utility model, by placing the cover plate on top of the processing tank, then inserting the adjusting column into the interior of the upper and lower clamping plates, adjusting the gap between the processing tank and the cover plate with a spring, and finally locking the adjusting column and the exterior of the lower clamping plate with a nut, it is convenient to open the processing cover plate in time to maintain the interior of the processing tank and ensure the normal operation of the device. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a filter for discharging material from a polymerization reactor, as proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of a cover plate for a filter used for discharging from a polymerization reactor, as proposed in this utility model.

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the structure of a processing tank based on a filter for discharging from a polymerization reactor, as proposed in this utility model.

[0029] Legend:

[0030] 1. Processing tank; 2. Cover plate; 3. Protective box; 4. Motor; 5. Fixing column; 6. External filter screen; 7. Internal filter screen; 8. Connecting seat; 9. Sealing ring; 10. Mounting seat; 11. Fixing wire; 12. Rubber block; 13. Flange ring; 14. Fixing bolt; 15. Upper clamping plate; 16. Lower clamping plate; 17. Limiting column; 18. Limiting plate; 19. Spring; 20. Adjusting column; 21. Nut; 22. Feed inlet; 23. Discharge outlet. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1 to 3 This utility model provides an embodiment of a filter for discharging materials from a polymerization reactor, comprising a processing tank 1. The processing tank 1 serves as the main container of the entire filter, providing a closed space for material processing. A cover plate 2 is detachably connected to the top of the processing tank 1. The cover plate 2 acts as a sealing component at the top of the processing tank 1, its shape conforming to the opening of the processing tank 1, tightly covering the top opening of the processing tank 1 to prevent material leakage and the entry of external impurities. A protective box 3 is fixedly connected to the top of the cover plate 2. A motor 4 is fixedly connected inside the protective box 3, serving as the core driving component. The protective box 3 is welded to the top of the cover plate 2, forming an independent closed space to accommodate the motor 4. A fixing column 5 is fixedly connected to the drive end of the motor 4. An external filter screen 6 is detachably connected to the outside of the fixing column 5, ensuring effective interception of impurities while maintaining smooth material passage.

[0033] The outer filter screen 6 is detachably connected to the inner filter screen 7, enabling secondary fine filtration or deep purification of materials. This allows the motor 4 to smoothly transmit power to the outer filter screen 6, driving the outer filter screen 6 and the nested inner filter screen 7 to operate efficiently, achieving centrifugal filtration of materials. The length of the fixed column 5 is reasonably designed based on the internal space height of the processing tank 1 and the size of the filter screen, ensuring that the filter screen can rotate stably in a suitable position within the tank. The top of the outer filter screen 6 is fixedly connected to the connecting seat 8, which is an important connecting and auxiliary sealing component at the top of the outer filter screen 6. The top of the outer filter screen 6 is fixedly connected to the mounting seat 10, which has a sealing component inside. The sealing component can increase the sealing between the outer filter screen 6 and the inner filter screen 7.

[0034] The sealing assembly includes a sealing ring 9, which is externally slidably connected to the inside of the connecting seat 8. The outer diameter of the sealing ring 9 precisely matches the inner diameter of the sealing groove of the connecting seat 8, and the inner diameter matches the outer diameter of the fixing column 5 or the relevant pipe. During installation, it easily slides into the sealing groove of the connecting seat 8. A fixing wire 11 is slidably connected inside the mounting seat 10. Multiple rubber blocks 12 are fixedly connected to the outside of the fixing wire 11. After the fixing wire 11 is installed into the straight groove of the mounting seat 10, by adjusting the position of the wire, the rubber blocks 12 are driven to tightly fit against the outer wall of the inner filter screen 7 and the inner wall of the mounting seat 10. This assists the sealing ring 9 in perfecting the sealing system, maintaining the relative position of the inner and outer filter screens 6 and ensuring good sealing. This ensures orderly stratified filtration of materials and prevents impurities from bypassing and mixing into the filtered material flow. The outside of the rubber blocks 12 is in contact with the inside of the mounting seat 10. The mounting seat 10 participates in forming a sealed space, working together with the sealing ring 9 and the rubber blocks 12 to enhance the sealing effect between the inner and outer filter screens 6 and between the filter screen and the fixing column 5. This prevents material leakage and mixing in non-filtration areas and ensures a rigorous and efficient filtration process.

[0035] A flange ring 13 is detachably connected to the top of the mounting base 10. Multiple fixing bolts 14 are detachably connected inside the connecting base 8. During installation, they cooperate with the sealing ring 9, are placed on top of the mounting base 10, and are tightened by the fixing bolts 14. Even pressure is applied to the sealing ring 9 to ensure that it fully exerts its sealing performance. At the same time, they tightly connect the relevant components of the outer filter screen 6, enhance the overall structure, and ensure that the filter screen system is stable and firm under material impact and equipment vibration conditions, and the filtration process is not disturbed. The fixing bolts 14 are externally slidably connected inside the mounting base 10 and inside the flange ring 13 to ensure that they can effectively penetrate each component after being screwed in, and generate sufficient preload when the fixing nut is tightened.

[0036] Reference Figure 4 Adjustment components are provided on both the left and right sides of the outer side of the cover plate 2. The adjustment components can increase the stability of the connection between the processing tank 1 and the cover plate 2. The adjustment components include an upper clamping plate 15, which is fixedly connected to the outside of the cover plate 2. The upper clamping plate 15 is made of thick metal plate and is welded to the left and right sides of the outer side of the cover plate 2. Lower clamping plates 16 are fixedly connected to both the left and right sides of the outer side of the processing tank 1 and are symmetrically welded to the left and right sides of the outer side of the processing tank 1. The material and thickness are matched and coordinated with the upper clamping plate 15.

[0037] Both the upper clamping plate 15 and the lower clamping plate 16 are slidably connected to limit posts 17. During equipment assembly, these posts guide the upper and lower clamping plates 16 to precise alignment and limit excessive displacement of the cover plate 2 during operation, ensuring the structural stability and safety of the equipment. The bottom of the limit post 17 is detachably connected to a limit plate 18, enhancing the limiting effect of the lower end of the limit post 17 and preventing it from accidentally detaching from the lower clamping plate 16. At the same time, it is convenient and quick to remove during equipment disassembly and maintenance, releasing the restriction on the connection between the cover plate 2 and the processing tank 1, facilitating operations such as tank inspection and filter replacement. A spring 19 is sleeved on the outside of the limit post 17. One end of the spring 19 is fixedly connected to the outside of the limit post 17, and the other end is fixedly connected to the top of the upper clamping plate 15. During equipment installation, the spring 19 automatically adjusts the gap between the processing tank 1 and the cover plate 2 using its own elastic compression and rebound characteristics, buffering the vibration of the equipment operation, ensuring the connection sealing and stability, and extending the service life of the equipment seals.

[0038] Adjusting columns 20 are slidably connected to the interior of both the upper clamping plate 15 and the lower clamping plate 16. Nuts 21 are threaded onto the exterior of the adjusting columns 20. By rotating the nuts 21, the vertical position of the cover plate 2 can be precisely adjusted, and the gap between the processing tank 1 and the cover plate 2 can be finely adjusted. This, combined with the spring 19, provides dual adjustment protection, ensuring a tight connection and convenient and efficient disassembly and installation. A feed inlet 22 is fixedly connected to the front of the processing tank 1 for easy feeding, and a discharge outlet 23 is fixedly connected to the right side of the processing tank 1 for easy discharging.

[0039] Working principle: First, place the processing tank 1 in a suitable position, place the cover plate 2 on top of the processing tank 1, then place the limiting post 17 and the adjusting post 20 into the upper clamping plate 15 and the lower clamping plate 16 respectively. At this time, the elasticity of the spring 19 is used to adjust the gap between the processing tank 1 and the cover plate 2. Finally, install the limiting plate 18 at the bottom of the limiting post 17, and then tighten the nut 21 on the outside of the adjusting post 20 to fix the cover plate 2 on the top of the processing tank 1. When disassembling, simply remove the limiting plate 18 and the nut 21 to inspect and maintain the inside of the processing tank 1.

[0040] Place the outer filter screen 6 inside the inner filter screen 7, then loop the fixing wire 11 around the outside of the fixing column 5, so that the rubber block 12 contacts the inner wall of the mounting base 10. Then place the flange ring 13 on top of the mounting base 10, and then place the sealing ring 9 inside the flange ring 13. Finally, use the fixing bolts 14 to fix the connecting seat 8, flange ring 13 and mounting base 10. This can fix the inner filter screen 7 inside the outer filter screen 6 and increase the sealing between the outer filter screen 6 and the inner filter screen 7. Then put the material into the processing tank 1 through the feed port 22, start the motor 4, and the fixing column 5 rotates under the drive of the motor 4, thereby driving the outer filter screen 6 and the inner filter screen 7 to rotate, fully filtering the material, and then discharging the material through the discharge port 23.

[0041] 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 filter for discharging material from a polymerization reactor, comprising a processing tank (1), characterized in that: The top of the processing tank (1) is detachably connected to a cover plate (2), and the top of the cover plate (2) is fixedly connected to a protective box (3). The inside of the protective box (3) is fixedly connected to a motor (4), and the drive end of the motor (4) is fixedly connected to a fixing column (5). The outside of the fixing column (5) is detachably connected to an outer filter screen (6), and the inside of the outer filter screen (6) is detachably connected to an inner filter screen (7). The top of the outer filter screen (6) is fixedly connected to a connecting seat (8), and the top of the outer filter screen (6) is fixedly connected to a mounting seat (10). The inside of the mounting seat (10) is provided with a sealing component, which can increase the sealing between the outer filter screen (6) and the inner filter screen (7). The left and right sides of the outside of the cover plate (2) are provided with adjustment components, which can increase the stability of the connection between the processing tank (1) and the cover plate (2).

2. A filter for discharging material from a polymerization reactor according to claim 1, characterized in that: The sealing assembly includes a sealing ring (9), the outside of which is slidably connected to the inside of the connecting seat (8), and a fixing wire (11) is slidably connected inside the mounting seat (10), and a plurality of rubber blocks (12) are fixedly connected to the outside of the fixing wire (11).

3. A filter for discharging material from a polymerization reactor according to claim 2, characterized in that: The top of the mounting base (10) is detachably connected to a flange ring (13), and the interior of the connecting base (8) is detachably connected to a plurality of fixing bolts (14).

4. A filter for discharging material from a polymerization reactor according to claim 3, characterized in that: The outside of the fixing bolt (14) is slidably connected to the inside of the mounting base (10) and the inside of the flange ring (13), and the outside of the rubber block (12) is in contact with the inside of the mounting base (10).

5. A filter for discharging material from a polymerization reactor according to claim 1, characterized in that: The adjustment assembly includes an upper clamping plate (15), which is fixedly connected to the outside of the cover plate (2). Lower clamping plates (16) are fixedly connected to the left and right sides of the processing tank (1). Limiting posts (17) are slidably connected to the inside of the upper clamping plate (15) and the inside of the lower clamping plate (16). A limiting plate (18) is detachably connected to the bottom of the limiting post (17). A spring (19) is sleeved on the outside of the limiting post (17).

6. A filter for discharging material from a polymerization reactor according to claim 5, characterized in that: One end of the spring (19) is fixedly connected to the outside of the limiting post (17), and the other end of the spring (19) is fixedly connected to the top of the upper clamping plate (15).

7. A filter for discharging material from a polymerization reactor according to claim 6, characterized in that: The upper clamping plate (15) and the lower clamping plate (16) are both slidably connected to adjusting columns (20), and the adjusting columns (20) are threadedly connected to nuts (21).

8. A filter for discharging material from a polymerization reactor according to claim 1, characterized in that: The processing tank (1) is fixedly connected to the front side of the inlet (22) and the processing tank (1) is fixedly connected to the right side of the outlet (23).