Resin collection device for wastewater from resin tower in chlor-alkali workshops
By designing a resin collection device with filter and float components, and controlling the opening and closing of the filter screen by water level changes, the problem of unstable resin particle collection was solved, and stable collection of resin particles and continuous production were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGJIN JINXI CHLOR-ALKALI CHEM CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-30
Smart Images

Figure CN224422192U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical production equipment technology, specifically to a resin collection device for wastewater from resin towers in chlor-alkali workshops. Background Technology
[0002] The resin collection device is used to collect resin particles mixed in the wastewater of the resin tower, thereby achieving the purpose of collecting resin particles and reducing the difficulty of subsequent wastewater treatment.
[0003] For example, CN 213031949 U discloses a resin collection device for wastewater from a resin tower in a chlor-alkali workshop. The device includes a frame, from top to bottom, with a coaxially arranged drive mechanism, separation mechanism, and receiving tray. The separation mechanism includes a separation disc and a scraper wheel. This device utilizes wastewater as the power source for the drive mechanism, achieving the reuse of wastewater power and thus saving on drive power costs. The drive mechanism drives the scraper wheel of the separation mechanism to rotate, and the rotating scraper wheel cooperates with the separation disc to scrape off and collect the resin particles filtered out on the separation disc. However, the following problems still exist: the device describes resin particles rolling along the curved edge into the collection tray for collection, which is an ideal state. Resin particles easily fall back into the separation tray, which is not conducive to collection and results in poor operational stability. Utility Model Content
[0004] The purpose of this invention is to provide a resin collection device for chlor-alkali workshop resin tower wastewater that has a reasonable structure and reliable operation, which solves the above problems, facilitates the collection of resin particles, and has good stability.
[0005] The technical solution of this utility model is:
[0006] A resin collection device for wastewater from a resin tower in a chlor-alkali workshop includes a collection tank, a filter assembly built into the upper part of the collection tank, a cover plate on the top of the collection tank, and a wastewater inlet on the cover plate. The key technical features are: the filter assembly includes a filter cylinder concentric with the collection tank, a filter screen fixed to the upper end of the filter cylinder, a conical filter plate inside the filter cylinder, and an annular support plate between the lower end of the filter cylinder and the inner wall of the collection tank. Both the filter cylinder and the annular support plate are provided with small drainage holes. The conical filter plate is provided with a large water passage hole assembly, and a guide sleeve is provided at the lower end of the conical filter plate. The filter screen has a clamping piece at its center, and a vertical rod is provided on the bottom surface of the clamping piece. The lower end of the vertical rod passes through the guide sleeve and connects to a float assembly. An annular collection cavity is formed between the filter cylinder, the annular support plate, and the inner wall of the collection tank. The collection tank is equipped with a level gauge, and a drain outlet is provided on the side of the bottom of the collection tank.
[0007] The resin collection device for the resin tower wastewater in the chlor-alkali workshop described above has an inclined inner bottom surface of the collection tank, a drain outlet located at the high end of the inclined surface, and a sediment outlet at the low end of the inclined surface.
[0008] The above-mentioned resin collection device for resin tower wastewater in a chlor-alkali workshop has a wastewater inlet fixed at the center of a cover plate with its inner end facing the center of a filter screen. The cover plate is provided with multiple arc-shaped holes corresponding to the annular collection chamber. The lower end of the scraper is inserted into the annular collection chamber through the arc-shaped holes, and the upper end of the scraper is provided with an operating handle.
[0009] The resin collection device for the resin tower wastewater in the chlor-alkali workshop described above has a transparent viewing window and a discharge port on the side wall of the collection tank corresponding to the annular collection chamber, and a gate valve is provided at the discharge port.
[0010] The resin collection device for the resin tower wastewater in the chlor-alkali workshop described above, wherein the float assembly consists of a flat round float and a positioning plate disposed on the upper surface of the flat round float, and the lower end of the upright is connected and fixed to the positioning plate.
[0011] The beneficial effects of this utility model are:
[0012] 1. In this resin tower wastewater treatment system, resin particles are filtered out using a filter screen. As the liquid level in the collection tank rises, when the set level is reached, the float assembly pushes the upright to its highest position. The filter screen is then lifted into a conical shape by the central clamping plate. Under the continued action of the wastewater, the resin particles on the filter screen are washed into the annular collection chamber. Simultaneously, the drain outlet opens, rapidly draining water at a rate greater than the inflow rate. The water volume in the collection tank gradually decreases, causing the float assembly to gradually sink, and the filter screen to sink as well, continuing to intercept resin particles until the next collection. When the water level reaches the set minimum level, the drain outlet is closed, and the wastewater level gradually rises. The float assembly also gradually rises until it reaches its highest position again. The filter screen is then lifted into a conical shape again by the central clamping plate, and the resin particles intercepted on the filter screen are once again washed into the annular collection chamber. This process repeats continuously. This invention utilizes the buoyancy of water to achieve effective collection of resin particles with good stability.
[0013] 2. After setting the cycle, the amount of resin particles accumulated can be observed through the transparent window. The resin particles in the annular collection chamber are scraped to the discharge port by the scraper. The discharge port is opened when the float assembly is submerged to discharge the resin particles. The operation is convenient, does not affect the filtration of wastewater, and ensures the continuity of production. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is the outline drawing of this utility model;
[0016] Figure 3 yes Figure 2 Top view.
[0017] In the diagram: 1. Cover plate, 2. Arc-shaped hole, 3. Wastewater inlet, 4. Filter screen, 5. Scraper, 6. Operating handle, 7. Transparent window, 8. Filter cylinder, 9. Annular support plate, 10. Conical filter plate, 11. Guide sleeve, 12. Large water passage group, 13. Vertical rod, 14. Flat round float, 15. Collection tank, 16. Drain outlet, 17. Sediment outlet, 18. Level gauge, 19. Positioning plate, 20. Clamping plate, 21. Annular collection chamber, 22. Slide valve, 23. Discharge port. Detailed Implementation
[0018] The present invention will be described in detail with reference to the accompanying drawings.
[0019] like Figures 1-3 As shown, the resin collection device for the resin tower wastewater in the chlor-alkali workshop includes a collection tank 15, a filter assembly built into the upper part of the collection tank 15, a cover plate 1 on the top of the collection tank 15, and a wastewater inlet 3 on the cover plate 1.
[0020] The filtration assembly includes a filter cylinder 8 concentric with the collection tank 15, a filter screen 4 fixed to the upper end of the filter cylinder 8, a conical filter plate 10 disposed inside the filter cylinder 8, and an annular support plate 9 disposed between the lower end of the filter cylinder 8 and the inner wall of the collection tank 15. Both the filter cylinder 8 and the annular support plate 9 are provided with small drainage hole groups. The conical filter plate 10 is provided with a large water passage hole group 12, and a guide sleeve 11 is provided at the lower end of the conical filter plate 10. A clamping piece 20 is provided at the center of the filter screen 4, and a vertical rod 13 is provided on the bottom surface of the clamping piece 20. The lower end of the vertical rod 13 passes through the guide sleeve 11 and connects to the float assembly. In this embodiment, the float assembly consists of a flat, round float 14 and a positioning plate 19 disposed on the upper surface of the flat, round float 14, and the lower end of the vertical rod 13 is connected and fixed to the positioning plate 19.
[0021] An annular collection chamber 21 is formed between the filter cylinder 8, the annular support plate 9, and the inner wall of the collection tank 15. In this embodiment, the side wall of the collection tank 15 is provided with a transparent window 7 and a discharge port 23 corresponding to the annular collection chamber 21, and a gate valve 22 is provided at the discharge port 23.
[0022] The collection tank 15 is equipped with a level gauge 18. The bottom side of the collection tank 15 is provided with a drain outlet 16. In this embodiment, the inner bottom surface of the collection tank 15 is a slope, the drain outlet 16 is located at the high end of the slope, and the low end of the slope is provided with a sediment outlet 17.
[0023] The wastewater inlet 3 is fixed to the center of the cover plate 1 and its inner end is arranged towards the center of the filter screen 4. The cover plate 1 is provided with two arc-shaped holes 2 corresponding to the annular collection chamber 21. The lower end of the scraper 5 is inserted into the annular collection chamber 21 through the arc-shaped holes 2. The upper end of the scraper 5 is provided with an operating handle 6.
[0024] Working principle:
[0025] 1. In the initial state, under the influence of gravity from the float assembly, filter screen 4 is inverted cone shape. (See...) Figure 1 The resin tower wastewater falls onto the filter screen 4 through the wastewater inlet 3, where the filter screen 4 filters and intercepts resin particles. The wastewater then falls into the water collection chamber at the bottom of the collection tank 15 through the conical filter plate 10.
[0026] 2. As the water level in the collection tank 15 rises, the float assembly also rises with the water level. When the set water level is reached, the float assembly pushes the upright rod 13 to the highest position, and the filter screen 4 is lifted into a conical shape by the central clamp 20. As the wastewater continues to fall, it washes the resin particles on the surface of the filter screen 4 into the annular collection chamber 21.
[0027] 3. Simultaneously, drain outlet 16 opens for rapid drainage, with the drainage speed exceeding the inflow speed. The water volume in collection tank 15 gradually decreases, causing the float assembly to gradually sink and the middle of filter screen 4 to sink, continuing to intercept resin particles until the next collection. When the water level reaches the set minimum level, drain outlet 16 is closed, and the wastewater level gradually rises. The float assembly also gradually rises, and when it rises to its highest position again, filter screen 4 is lifted into a conical shape by the central clamp 20. The resin particles intercepted on filter screen 4 are then flushed back into the annular collection chamber 21. This process repeats, achieving effective collection of resin particles.
[0028] 4. The amount of resin particles accumulated can be observed at any time through the transparent window 7. The resin particles in the annular collection chamber 21 are scraped to the discharge port 23 by the scraper 5. The slide valve 22 is opened when the float assembly is sinking to discharge the resin particles.
[0029] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this utility model.
Claims
1. A resin collection device for wastewater from a resin tower in a chlor-alkali workshop, comprising a collection tank, a filter assembly built into the upper part of the collection tank, a cover plate disposed on the top of the collection tank, and a wastewater inlet disposed on the cover plate, characterized in that: The filtration assembly includes a filter cylinder concentric with the collection tank, a filter screen fixed to the upper end of the filter cylinder, a conical filter plate disposed inside the filter cylinder, and an annular support plate disposed between the lower end of the filter cylinder and the inner wall of the collection tank. The filter cylinder and the annular support plate are provided with small drainage hole groups. The conical filter plate is provided with large water passage hole groups and a guide sleeve is provided at the lower end of the conical filter plate. The filter screen is provided with a clamping piece at its center. The bottom surface of the clamping piece is provided with a vertical rod. The lower end of the vertical rod passes through the guide sleeve and connects to the float assembly. An annular collection cavity is formed between the filter cylinder, the annular support plate, and the inner wall of the collection tank. The collection tank is provided with a level gauge and a drain outlet is provided on the side of the bottom of the collection tank.
2. The resin collection device for wastewater from the resin tower in a chlor-alkali workshop according to claim 1, characterized in that: The bottom surface of the collection tank is inclined, the drain outlet is located at the high end of the inclined surface, and the sediment outlet is provided at the low end of the inclined surface.
3. The resin collection device for wastewater from the resin tower in a chlor-alkali workshop according to claim 1, characterized in that: The wastewater inlet is fixed to the center of the cover plate and its inner end faces the center of the filter screen. The cover plate is provided with multiple arc-shaped holes corresponding to the annular collection chamber. The lower end of the scraper is inserted into the annular collection chamber through the arc-shaped holes. The upper end of the scraper is provided with an operating handle.
4. The resin collection device for wastewater from the resin tower in a chlor-alkali workshop according to claim 1, characterized in that: The side wall of the collection tank is provided with a transparent window and a discharge port corresponding to the annular collection chamber, and a gate valve is provided at the discharge port.
5. The resin collection device for wastewater from the resin tower in a chlor-alkali workshop according to claim 1, characterized in that: The float assembly consists of a flat, round float and a positioning plate disposed on the upper surface of the flat, round float, with the lower end of the upright being connected and fixed to the positioning plate.