Sewage recycling treatment box for waterproof material production

By installing baffles and aeration structures inside the sewage tank, combined with a chain-plate scraper and filter screen, the problems of low scum removal efficiency and liquid impurities in existing sewage tanks are solved, achieving efficient separation of scum and liquid.

CN224118801UActive Publication Date: 2026-04-14WEIFANG SHIHUA CHEM BUILDING MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIFANG SHIHUA CHEM BUILDING MATERIAL CO LTD
Filing Date
2025-04-22
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing sewage tanks are inefficient at cleaning scum, and the scum pile after cleaning is prone to containing liquid, which increases the workload of operators.

Method used

A wastewater reuse treatment tank was designed, which is divided into a liquid chamber and a sludge chamber by setting a partition inside the wastewater tank. An aeration structure is installed at the bottom of the liquid chamber. A chain plate scraper is used to scrape the scum into the scum chamber. The scum is filtered by a filter screen. After being pressed by a pressure plate, the liquid enters the filtrate chamber, reducing the need for manual separation steps.

Benefits of technology

It improves the efficiency of scum removal, reduces the workload of operators, and achieves efficient separation of scum and liquid.

✦ Generated by Eureka AI based on patent content.

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Abstract

A sewage reuse treatment tank for waterproof material production relates to the technical field of sewage treatment and comprises a sewage tank, a partition plate is vertically and fixedly connected in the sewage tank, an inner cavity of the sewage tank is divided into a liquid cavity and a sludge cavity through the partition plate, an aeration structure is arranged at the bottom of the liquid cavity, and the upper end of the partition plate is obliquely and fixedly connected with a guide-out section towards the liquid cavity. The upper end part of the leading-out section is fixedly connected with a leading-in section in an inclined downward manner, a chain plate type mud scraper is obliquely arranged in the liquid cavity, and a scraping plate of the chain plate type mud scraper is in friction contact with the upper surface of the leading-in section. According to the utility model, the problems that in the prior art, when the sewage tank cleans scum in sewage, the sewage tank is limited by the structure of the existing chain plate type mud scraper, so that the treatment capacity of the scum is low, and the cleaning efficiency of the scum is influenced are solved; and the problems that after scum is cleaned by an existing chain plate type mud scraper, a large amount of liquid is easily mixed in a scum pile, so that the liquid in the scum needs to be secondarily separated by an operator, and the working intensity is improved are solved.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater reuse treatment tank for waterproof material production. Background Technology

[0002] The main raw materials for modified bitumen waterproofing materials include asphalt, asphalt modifiers, softening oil, and talc. Depending on the specifications of the materials, these raw materials are oxidized according to a prescribed ratio and process flow at approximately 200℃. At this temperature, light oil components in the asphalt and softening oil evaporate and enter environmental protection equipment via pipelines. These pipelines contain spray devices, and the environmental protection equipment includes adsorption, electrostatic precipitation, and photo-oxidation devices to cool, adsorb, and deodorize the volatile oils. A large amount of oil enters the system along with the sprayed water. In the circulating water tank, the modifiers and talc powder in the ingredients are all in powder form. When added, a lot of dust is generated and sucked away by the environmental protection equipment pipeline. Finally, it flows into the circulating water tank with the spray water and accumulates more and more, causing the circulating water to become increasingly dirty. The circulating water is treated by the equipment, which mainly separates the oil and powdery materials. The separated oil can be reused as softening oil, and the separated powder can be reused as talc filler. The circulating water can then be used normally, and no waste is generated in the whole process.

[0003] A prior art patent with publication number CN211051013U discloses a solution comprising a device body, an inlet pipe, and a filter cartridge. The inlet pipe is located on the upper left side of the device body, and the filter cartridge is housed within the device body. A motor is located at the upper end of the device body, and a connecting rod is located at the lower end of the motor. A fixing plate is located at the lower end of the connecting rod, and a rotating shaft is inserted into the lower end of the fixing plate. Both sides of the rotating shaft have locking blocks, and each locking block has a connecting rod at its far end. A spring is fitted onto the connecting rod, and the left and right ends of the spring are respectively fixedly connected to the locking blocks and the fixing plate. Scrapers are located at both ends of the rotating shaft corresponding to the filter cartridge, and connecting plates are located at the lower ends of the scrapers. The scrapers and connecting plates respectively fit against the inner wall and bottom end of the filter cartridge. During use, this design facilitates the disassembly and installation of the filter cartridge, rotating shaft, scrapers, connecting plates, and filter screen, making cleaning easier for workers.

[0004] As existing devices are used, the shortcomings of this technology have gradually become apparent, mainly in the following aspects:

[0005] First, the existing sewage tanks are limited by the structure of the existing chain-plate scraper when cleaning scum from sewage, resulting in a low scum processing capacity and affecting the scum cleaning efficiency.

[0006] Secondly, after the existing chain-plate scraper cleans the scum, the scum pile is prone to contain a large amount of liquid, which requires operators to perform secondary separation of the liquid in the scum, increasing the workload.

[0007] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a wastewater reuse treatment tank for waterproof material production. This solves the problems of traditional wastewater tanks, which, due to the structural limitations of existing chain-plate scrapers, result in low scum removal capacity and reduced cleaning efficiency. Furthermore, existing chain-plate scrapers often leave a large amount of liquid trapped in the scum pile after cleaning, requiring secondary separation of the liquid from the scum by operators, thus increasing workload.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A wastewater reuse treatment tank for waterproof material production includes a wastewater tank with a vertically fixed partition inside, which divides the inner cavity of the wastewater tank into a liquid chamber and a sludge chamber. An aeration structure is provided at the bottom of the liquid chamber.

[0011] The upper end of the partition is inclined towards the liquid cavity and fixedly connected to an outlet section, and the upper end of the outlet section is inclined downward and fixedly connected to an inlet section.

[0012] A chain-plate scraper is inclinedly installed inside the liquid chamber, and the scraper of the chain-plate scraper is in frictional contact with the upper surface of the inlet section.

[0013] As an optimized solution, the two ends of the scraper are respectively fixedly to the side gathering sections perpendicularly facing its feeding direction, and a scum cleaning area is formed between the two side gathering sections and the scraper.

[0014] As an optimized solution, a support mesh plate is horizontally fixed inside the sludge chamber, and a filter screen is supported on the upper surface of the support mesh plate. The support mesh plate divides the sludge chamber into a scum chamber and a filtrate chamber from top to bottom.

[0015] As an optimized solution, the scum chamber is equipped with a pressure plate that is raised and lowered, and the outer wall of the sewage tank is provided with a scum discharge hole, the lower edge of which is flush with the upper surface of the filter screen.

[0016] As an optimized solution, a sealing plate that controls the flow of the scum discharge hole is hinged to the outer wall of the sewage tank below the scum discharge hole. A fixing hole is provided at the swing end of the sealing plate, and a bolt is inserted into the fixing hole. A threaded groove is provided on the outer wall of the sewage tank above the scum discharge hole, and the end of the bolt is connected to the threaded groove.

[0017] As an optimized solution, the sewage tank is fixedly connected to a mounting bracket at the top position above the scum chamber, a drive motor is fixedly connected to the mounting bracket, a stud is vertically fixed to the output shaft of the drive motor, a threaded hole is opened on the pressure plate for threaded connection with the stud, and the outer wall of the pressure plate is in frictional contact with the inner wall of the sewage tank and the partition.

[0018] As an optimized solution, the bottom of the filtrate chamber is fixedly connected to an outlet pipe that communicates with its inner cavity, and a return pump is fixedly connected to the outlet pipe. The outlet end of the return pump is connected to the liquid chamber through an inlet pipe.

[0019] As an optimized solution, a handle is fixedly attached to the outer wall of the closed plate near the swing end.

[0020] As an optimized solution, a valve communicating with the liquid chamber is fixedly connected to the outer wall of the sewage tank near the bottom.

[0021] As an optimized solution, the aeration structure includes an aeration pipe disposed at the bottom of the liquid chamber, and a plurality of aeration nozzles are fixedly connected in parallel on the upper surface of the aeration pipe.

[0022] As an optimized solution, the upper end of the partition is lower than the upper end of the sewage tank, but higher than the liquid level of the liquid chamber.

[0023] As an optimized solution, the lower end of the inlet section is inclined downward and fixedly connected to a transition section.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] Wastewater from the production of waterproof membrane is poured into the liquid chamber through a wastewater tank. An aeration structure is used to aerate the wastewater, suspending the powder in the wastewater to the surface. Then, a chain scraper scrapes the floating powder along the inlet section to the outlet section and into the scum chamber for collection. The liquid in the scum pile is filtered through a filter screen between the scum chamber and the filtrate chamber. When the scum pile is too large, the chain scraper is turned off, and the screw drives the pressure plate to descend, thus pressing the scum pile and collecting the filtered liquid in the filtrate chamber. This eliminates the need for operators to perform a secondary separation operation.

[0026] The filtrate chamber is connected to the liquid chamber through the outlet pipe, the return pump and the inlet pipe, so that the filtered liquid can be reintroduced into the liquid chamber.

[0027] The scraper has side-gathering sections that are vertically fixed to both ends of the scraper in the direction of feed. The two side-gathering sections and the scraper form a scum cleaning area, which increases the amount of scum that can be cleaned and improves the cleaning efficiency of the chain plate scraper. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the side-gathering section of this utility model.

[0031] In the diagram: 1-Sewage tank; 2-Liquid chamber; 3-Scum chamber; 4-Filtrate chamber; 5-Baffle; 6-Outlet section; 7-Inlet section; 8-Transition section; 9-Chain plate scraper; 10-Scraper; 11-Side gathering section; 12-Support mesh plate; 13-Filter screen; 14-Scum discharge hole; 15-Sealing plate; 16-Bolt; 17-Pull handle; 18-Stud; 19-Pressure plate; 20-Mounting bracket; 21-Drive motor; 22-Outlet pipe; 23-Return pump; 24-Inlet pipe; 25-Aeration structure; 26-Valve. Detailed Implementation

[0032] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0033] like Figure 1 As shown, the wastewater reuse treatment tank for waterproof material production includes a wastewater tank 1. A partition 5 is vertically fixed inside the wastewater tank 1, dividing the inner cavity of the wastewater tank 1 into a liquid chamber 2 and a sludge chamber. An aeration structure 25 is provided at the bottom of the liquid chamber 2.

[0034] The upper end of the partition 5 is inclined towards the liquid chamber 2 and fixedly connected to the outlet section 6, and the upper end of the outlet section 6 is inclined downward and fixedly connected to the inlet section 7.

[0035] A chain-plate scraper 9 is inclinedly installed inside the liquid chamber 2, and the scraper 10 of the chain-plate scraper 9 is in frictional contact with the upper surface of the inlet section 7.

[0036] Both ends of the scraper 10 are vertically fixed with side gathering sections 11 facing its feeding direction, and a scum cleaning area is formed between the two side gathering sections 11 and the scraper 10.

[0037] A support mesh plate 12 is horizontally fixed inside the sludge chamber. A filter screen 13 is supported on the upper surface of the support mesh plate 12. The support mesh plate 12 divides the sludge chamber into a scum chamber 3 and a filtrate chamber 4 from top to bottom.

[0038] The scum chamber 3 is equipped with a pressure plate 19 for lifting and lowering. The outer wall of the sewage tank 1 is provided with a scum discharge hole 14, and the lower edge of the scum discharge hole 14 is flush with the upper surface of the filter screen 13.

[0039] A sealing plate 15 is hinged to the outer wall of the sewage tank 1 below the scum discharge hole 14 to open and close the scum discharge hole 14. A fixing hole is opened at the swing end of the sealing plate 15, and a bolt 16 is inserted into the fixing hole. A threaded groove is opened on the outer wall of the sewage tank 1 above the scum discharge hole 14, and the end of the bolt 16 is connected to the threaded groove.

[0040] The sewage tank 1 is fixedly connected to the top position above the scum chamber 3 by a mounting bracket 20. A drive motor 21 is fixedly connected to the mounting bracket 20. The output shaft of the drive motor 21 is vertically fixedly connected to a stud 18. A threaded hole is opened on the pressure plate 19 to be threadedly connected to the stud 18. The outer wall of the pressure plate 19 is in frictional contact with the inner wall of the sewage tank 1 and the partition 5.

[0041] The bottom of the filtrate chamber 4 is fixedly connected to an outlet pipe 22 that connects to its inner cavity. A return pump 23 is fixedly connected to the outlet pipe 22. The outlet end of the return pump 23 is connected to the liquid chamber 2 through an inlet pipe 24.

[0042] A handle 17 is fixedly attached to the outer wall of the closed plate 15 near the swing end.

[0043] A valve 26, which connects to the liquid chamber 2, is fixedly connected to the outer wall of the sewage tank 1 near the bottom.

[0044] The aeration structure 25 includes an aeration pipe disposed at the bottom of the liquid chamber 2, and a number of aeration nozzles are fixedly connected in parallel on the upper surface of the aeration pipe.

[0045] The upper end of the partition 5 is lower than the upper end of the sewage tank 1 and higher than the liquid level of the liquid chamber 2.

[0046] The lower end of the inlet segment 7 is fixedly connected to the transition segment 8 at an angle downwards.

[0047] The structure of the chain plate scraper 9 is common in daily life and is not an innovation of this solution, so it will not be described in detail here.

[0048] The working principle of this device is as follows:

[0049] Wastewater from the production of waterproof membrane is poured into liquid chamber 2 through wastewater tank 1. Aeration structure 25 is used to aerate the wastewater, suspending the powder in the wastewater to the surface of the liquid. Then, chain plate scraper 9 scrapes the floating powder along the inlet section 7 to the outlet section 6 and into scum chamber 3 for collection. The liquid in the scum pile is filtered through filter screen 13 between scum chamber 3 and filtrate chamber 4. When the scum pile is too large, chain plate scraper 9 is turned off, and stud 18 drives pressure plate 19 to descend, thereby pressing and filtering the scum pile. The filtered liquid is then collected in filtrate chamber 4, eliminating the need for secondary separation by operators.

[0050] The filtrate chamber 4 is connected to the liquid chamber 2 through the liquid outlet pipe 22, the liquid return pump 23 and the liquid inlet pipe 24, so as to allow the filtered liquid to be reintroduced into the liquid chamber 2.

[0051] The scraper 10 has side gathering sections 11 that are vertically fixed to both ends of the scraper 10 in the direction of feed. The two side gathering sections 11 and the scraper 10 form a scum cleaning area, which increases the amount of scum that can be cleaned and improves the cleaning efficiency of the chain plate scraper 9.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A wastewater recycling and treatment tank for waterproof material production, characterized in that: Includes a sewage tank (1), inside which a partition (5) is vertically fixed, dividing the inner cavity of the sewage tank (1) into a liquid cavity (2) and a sludge cavity. The bottom of the liquid cavity (2) is provided with an aeration structure (25). The upper end of the partition (5) is inclined towards the liquid cavity (2) and fixedly connected to an outlet section (6), and the upper end of the outlet section (6) is inclined downward and fixedly connected to an inlet section (7). A chain-plate scraper (9) is inclinedly installed inside the liquid chamber (2), and the scraper (10) of the chain-plate scraper (9) is in frictional contact with the upper surface of the inlet section (7).

2. The wastewater reuse treatment tank for waterproof material production according to claim 1, characterized in that: The scraper (10) has two sides of the scraper (10) that are vertically fixed to each other in the direction of feed, and a scum cleaning area is formed between the two sides of the scraper (10) and the scraper (10).

3. The wastewater reuse treatment tank for waterproof material production according to claim 2, characterized in that: A support mesh plate (12) is horizontally fixed inside the sludge chamber. A filter screen (13) is supported on the upper surface of the support mesh plate (12). The support mesh plate (12) divides the sludge chamber into a scum chamber (3) and a filtrate chamber (4) from top to bottom.

4. The wastewater reuse treatment tank for waterproof material production according to claim 3, characterized in that: The scum chamber (3) is equipped with a pressure plate (19) that moves up and down. The outer wall of the sewage tank (1) is provided with a scum discharge hole (14). The lower edge of the scum discharge hole (14) is flush with the upper surface of the filter screen (13).

5. The wastewater reuse treatment tank for waterproof material production according to claim 4, characterized in that: The sewage tank (1) is hinged to a sealing plate (15) on its outer wall below the scum discharge hole (14), which controls the flow of the scum discharge hole (14). The swing end of the sealing plate (15) has a fixing hole, and a bolt (16) is inserted into the fixing hole. The sewage tank (1) is provided with a threaded groove on its outer wall above the scum discharge hole (14), and the end of the bolt (16) is connected to the threaded groove.

6. The wastewater reuse treatment tank for waterproof material production according to claim 5, characterized in that: The sewage tank (1) is fixedly connected to the top position above the scum chamber (3) by a mounting bracket (20). A drive motor (21) is fixedly connected to the mounting bracket (20). A stud (18) is vertically fixed to the output shaft of the drive motor (21). A threaded hole is provided on the pressure plate (19) for threaded connection with the stud (18). The outer wall of the pressure plate (19) is in frictional contact with the inner wall of the sewage tank (1) and the partition (5).

7. The wastewater reuse treatment tank for waterproof material production according to claim 6, characterized in that: The bottom of the filtrate chamber (4) is fixedly connected to an outlet pipe (22) that communicates with its inner cavity. A return pump (23) is fixedly connected to the outlet pipe (22). The outlet end of the return pump (23) is connected to the liquid chamber (2) through an inlet pipe (24).

8. The wastewater reuse treatment tank for waterproof material production according to claim 7, characterized in that: A handle (17) is fixed to the outer wall of the closed plate (15) near the swing end.

9. The wastewater reuse treatment tank for waterproof material production according to claim 8, characterized in that: A valve (26) connecting to the liquid chamber (2) is fixed to the outer wall near the bottom of the sewage tank (1).

10. The wastewater reuse treatment tank for waterproof material production according to claim 9, characterized in that: The upper end of the partition (5) is lower than the upper end of the sewage tank (1) and higher than the liquid level of the liquid chamber (2).

Citation Information

Patent Citations

  • Sewage treatment equipment for waterproof material processing

    CN211051013U