Sewage reuse treatment system for waterproof material production

Abstract

A sewage reuse treatment system for waterproof material production relates to the technical field of sewage treatment and comprises a sewage pool, a partition plate is vertically and fixedly connected in the sewage pool, and an inner cavity of the sewage pool is divided into a liquid cavity and a sludge cavity through the partition plate; a stirring structure is arranged in the liquid cavity, a dosing structure communicated with the liquid cavity is arranged at the top of the sewage tank, an aeration structure is arranged at the bottom of the liquid cavity, a chain plate type sludge scraper is obliquely arranged in the liquid cavity, the outlet end of the chain plate type sludge scraper is located above the sludge cavity, and a water-oil separation structure communicated with the liquid cavity is arranged outside the sewage tank. And a filter press communicated with the sludge cavity is also arranged outside the sewage pool. The device solves the problems that sewage generated by waterproof materials in the prior art contains a mixture of water, oil and powder, so that an existing device cannot separate and collect the water, the oil and the powder, and the reuse treatment efficiency of the sewage generated by the waterproof materials is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater reuse and treatment system 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 CN114470887A discloses a solution including a housing, an exhaust structure, and an auxiliary structure. The housing has symmetrically fixed exhaust ports at its top, with a fan fixed inside each port. A discharge port is fixed to the side of the housing. Activated carbon and HEPA filters work together to treat the gas exiting the exhaust ports, preventing odors and impacting surrounding personnel. A waterproof baffle protects the fan, preventing wastewater from splashing onto it, improving the housing's practicality. A push plate facilitates the movement of sediment, and a sealing block and gasket ensure the housing's airtightness. A guide block allows sediment to drain through the discharge port, solving the problem of inconvenient sediment discharge in existing wastewater treatment equipment and improving the ease of maintenance.

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

[0005] The wastewater generated by existing waterproofing materials contains a mixture of water, oil, and powder, which makes it impossible for existing devices to separate and collect the water, oil, and powder, thus reducing the efficiency of wastewater reuse treatment.

[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a wastewater reuse and treatment system for waterproof material production. This system solves the problem that wastewater generated from waterproof materials in traditional technologies contains a mixture of water, oil, and powder, which prevents existing devices from separating and collecting the water, oil, and powder, thus reducing the efficiency of wastewater reuse and treatment.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A wastewater reuse and treatment system for waterproof material production includes a wastewater tank, wherein a partition is vertically fixed inside the wastewater tank, and the partition divides the inner cavity of the wastewater tank into a liquid cavity and a sludge cavity.

[0010] The liquid chamber is equipped with a stirring structure, the top of the sewage tank is equipped with a dosing structure communicating with the liquid chamber, and the bottom of the liquid chamber is equipped with an aeration structure.

[0011] A chain-plate scraper is inclinedly installed inside the liquid chamber, and the outlet end of the chain-plate scraper is located above the sludge chamber.

[0012] The sewage tank is provided with a water-oil separation structure that connects to the liquid chamber on the outside, and a filter press that connects to the sludge chamber is also provided on the outside of the sewage tank.

[0013] As an optimized solution, the water-oil separation structure includes a box body, in which several overflow plates of decreasing height are arranged side by side, and the overflow plates divide the inner cavity of the box body into several separation zones. A liquid outlet pipe connected to the liquid cavity is fixed to the outer wall of the box body, and the liquid outlet pipe connects the area between the highest overflow plate and the inner wall of the box body.

[0014] As an optimized solution, an oil outlet pipe is fixedly connected to the outer wall of the housing. The oil outlet pipe connects the area between the lowest overflow plate and the inner wall of the housing, and the height of the oil outlet pipe is lower than the upper end of the lowest overflow plate.

[0015] As an optimized solution, a drain valve is fixedly connected to the bottom of the box corresponding to each of the separation zones.

[0016] As an optimized solution, the outlet ends of several drain valves are connected to the main pipeline.

[0017] As an optimized solution, the dosing structure includes dosing tanks fixedly connected in parallel to the top of the sewage tank, and a dosing valve pipe fixedly connected to the bottom of the dosing pipe.

[0018] As an optimized solution, the stirring structure includes a drive motor fixed to the top of the sewage tank, the output shaft of the drive motor being vertically fixed to a stirring shaft extending into the liquid chamber, and stirring blades being fixed to the lower end of the stirring shaft.

[0019] 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.

[0020] 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.

[0021] As an optimized solution, the top of the partition is inclined downward and fixed with a guide plate extending below the liquid surface of the liquid chamber, and the scraper of the chain plate scraper is in frictional contact with the upper surface of the guide plate.

[0022] As an optimized solution, the filter press is a plate and frame filter press.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] Wastewater from the production of waterproof membrane is poured into the liquid chamber through a wastewater tank. Additives are added to the wastewater through a dosing tank, and the wastewater is thoroughly stirred by a stirring structure. At the same time, the wastewater is aerated by an aeration structure, which suspends the powder in the wastewater to the surface of the liquid. Then, a chain plate scraper scrapes the floating powder along the guide plate into the sludge chamber for collection. The floating powder in the sludge chamber then enters a plate and frame filter press to separate the liquid from the floating powder, and the pressed powder is discharged.

[0025] Wastewater located in the liquid chamber is discharged into the tank. Several overflow plates with decreasing height are arranged in parallel inside the tank. Taking advantage of the fact that oil has a lower density than liquid, the oil floats on the surface of the liquid and is finally separated and discharged through the oil outlet pipe.

[0026] The liquid inside the tank will eventually be separated and discharged through the drain valve; this allows for the separate discharge of powder, oil, and liquid, improving the efficiency of wastewater reuse in the production of waterproof materials. Attached Figure Description

[0027] 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.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] In the diagram: 1-Sewage tank; 2-Baffle plate; 3-Liquid chamber; 4-Sludge chamber; 5-Filter press; 6-Box body; 7-Overflow plate; 8-Separation zone; 9-Oil outlet pipe; 10-Drain valve; 11-Main pipe; 12-Aeration pipe; 13-Aeration nozzle; 14-Dosing tank; 15-Dosing valve pipe; 16-Drive motor; 17-Agitator shaft; 18-Agitator blades; 19-Chain plate scraper; 20-Guide plate; 21-Liquid outlet pipe; 22-Drain valve. Detailed Implementation

[0030] 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.

[0031] like Figure 1 As shown, a wastewater reuse treatment system for waterproof material production includes a wastewater tank 1. A partition 2 is vertically fixed inside the wastewater tank 1, and the partition 2 divides the inner cavity of the wastewater tank 1 into a liquid cavity 3 and a sludge cavity 4.

[0032] The liquid chamber 3 is equipped with a stirring structure, the top of the sewage tank 1 is equipped with a dosing structure that connects to the liquid chamber 3, and the bottom of the liquid chamber 3 is equipped with an aeration structure.

[0033] A chain-plate scraper 19 is inclinedly installed inside the liquid chamber 3, and the outlet end of the chain-plate scraper 19 is located above the sludge chamber 4.

[0034] The sewage tank 1 is equipped with a water-oil separation structure connected to the liquid chamber 3 on the outside, and a filter press 5 connected to the sludge chamber 4 is also provided on the outside of the sewage tank 1.

[0035] The water-oil separation structure includes a housing 6, inside which several overflow plates 7 are arranged in a decreasing order of height, dividing the inner cavity of the housing 6 into several separation zones 8. A liquid outlet pipe 21 connected to the liquid chamber 3 is fixed to the outer wall of the housing 6, and the liquid outlet pipe 21 connects to the area between the highest overflow plate 7 and the inner wall of the housing 6; the inlet end of the liquid outlet pipe 21 is close to the height of the oil.

[0036] An oil outlet pipe 9 is fixedly connected to the outer wall of the housing 6. The oil outlet pipe 9 connects the area between the lowest overflow plate 7 and the inner wall of the housing 6. The height of the oil outlet pipe 9 is lower than the upper end of the lowest overflow plate 7.

[0037] A drain valve 10 is fixedly connected to the bottom of the housing 6 corresponding to each separation zone 8.

[0038] The outlet ends of several drain valves 10 are connected to the main pipeline 11.

[0039] The dosing structure includes a dosing tank 14 fixedly attached to the top of the sewage tank 1, and a dosing valve pipe 15 fixedly attached to the bottom of the dosing pipe.

[0040] The stirring structure includes a drive motor 16 fixed to the top of the sewage tank 1. The output shaft of the drive motor 16 is vertically fixed to a stirring shaft 17 extending into the liquid chamber 3. A stirring blade 18 is fixed to the lower end of the stirring shaft 17.

[0041] The aeration structure includes an aeration pipe 12 located at the bottom of the liquid chamber 3, and several aeration nozzles 13 are fixedly connected in parallel on the upper surface of the aeration pipe 12.

[0042] The upper end of the partition 2 is lower than the upper end of the sewage tank 1 and higher than the liquid level of the liquid chamber 3.

[0043] The top of the partition 2 is inclined downward and fixed with a guide plate 20 extending below the liquid surface of the liquid chamber 3. The scraper of the chain plate scraper 19 is in frictional contact with the upper surface of the guide plate 20.

[0044] Filter press 5 is a plate and frame filter press 5.

[0045] A discharge valve 22 is fixedly connected to the outer wall of the sewage tank 1 near the bottom, which communicates with its inner cavity, for discharging the sewage inside.

[0046] The working principle of this device is as follows:

[0047] Wastewater from the production of waterproof membrane is poured into liquid chamber 3 through wastewater tank 1. Additives can be added to the wastewater through dosing tank 14. The wastewater is thoroughly stirred by the stirring structure and aerated by the aeration structure. This suspends the powder in the wastewater on the liquid surface. Then, the chain plate scraper 19 scrapes the floating powder on the liquid surface along the guide plate 20 into sludge chamber 4 for collection. The floating powder in sludge chamber 4 then enters plate and frame filter press 5 to separate the liquid from the floating powder, and the pressed powder is then discharged.

[0048] Wastewater located in liquid chamber 3 is discharged into tank 6. Several overflow plates 7 arranged in parallel with decreasing height are installed in tank 6. Taking advantage of the fact that oil has a lower density than liquid, the oil floats on the surface of the liquid and is finally separated and discharged through oil outlet pipe 9.

[0049] The liquid inside the tank 6 will eventually be separated and discharged through the drain valve 10; this allows for the separate discharge of powder, oil, and liquid, improving the efficiency of wastewater reuse in the production of waterproof materials.

[0050] 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 reuse and treatment system for waterproof material production, characterized in that: It includes a sewage tank (1), in which a partition (2) is vertically fixed, and the partition (2) divides the inner cavity of the sewage tank (1) into a liquid cavity (3) and a sludge cavity (4). The liquid chamber (3) is equipped with a stirring structure, the top of the sewage tank (1) is equipped with a dosing structure that connects to the liquid chamber (3), and the bottom of the liquid chamber (3) is equipped with an aeration structure. A chain-plate scraper (19) is inclinedly installed inside the liquid chamber (3), and the outlet end of the chain-plate scraper (19) is located above the sludge chamber (4). The sewage tank (1) is provided with a water-oil separation structure that connects to the liquid chamber (3) on the outside, and a filter press (5) that connects to the sludge chamber (4) is also provided on the outside of the sewage tank (1).

2. The wastewater reuse and treatment system for waterproof material production according to claim 1, characterized in that: The water-oil separation structure includes a box (6), in which several overflow plates (7) of decreasing height are arranged in parallel, and the inner cavity of the box (6) is divided into several separation zones (8) by the overflow plates (7). A liquid outlet pipe (21) connected to the liquid cavity (3) is fixed to the outer wall of the box (6), and the liquid outlet pipe (21) connects the area between the highest overflow plate (7) and the inner wall of the box (6).

3. The wastewater reuse and treatment system for waterproof material production according to claim 2, characterized in that: An oil outlet pipe (9) is fixed to the outer wall of the housing (6). The oil outlet pipe (9) connects the area between the lowest overflow plate (7) and the inner wall of the housing (6). The height of the oil outlet pipe (9) is lower than the upper end of the lowest overflow plate (7).

4. The wastewater reuse and treatment system for waterproof material production according to claim 3, characterized in that: The bottom of the box (6) is fixed with a drain valve (10) corresponding to each of the separation zones (8), and the outlet ends of several drain valves (10) are connected to the main pipe (11).

5. The wastewater reuse and treatment system for waterproof material production according to claim 4, characterized in that: The dosing structure includes a dosing tank (14) fixedly attached to the top of the sewage tank (1) in parallel, and a dosing valve pipe (15) fixedly attached to the bottom of the dosing pipe.

6. The wastewater reuse and treatment system for waterproof material production according to claim 5, characterized in that: The stirring structure includes a drive motor (16) fixed to the top of the sewage tank (1), and the output shaft of the drive motor (16) is vertically fixed to a stirring shaft (17) extending into the liquid chamber (3). The lower end of the stirring shaft (17) is fixed to a stirring blade (18).

7. The wastewater reuse and treatment system for waterproof material production according to claim 6, characterized in that: The aeration structure includes an aeration pipe (12) disposed at the bottom of the liquid chamber (3), and a plurality of aeration nozzles (13) are fixedly connected in parallel on the upper surface of the aeration pipe (12).

8. The wastewater reuse and treatment system for waterproof material production according to claim 7, characterized in that: The upper end of the partition (2) is lower than the upper end of the sewage tank (1) and higher than the liquid level of the liquid chamber (3).

9. The wastewater reuse and treatment system for waterproof material production according to claim 8, characterized in that: The top of the partition (2) is inclined downward and fixed with a guide plate (20) extending below the liquid surface of the liquid cavity (3), and the scraper of the chain plate scraper (19) is in frictional contact with the upper surface of the guide plate (20).

10. The wastewater reuse and treatment system for waterproof material production according to claim 9, characterized in that: The filter press (5) is a plate and frame filter press (5).

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