Printing and dyeing wastewater circulating treatment device

Abstract

The utility model discloses a printing and dyeing wastewater circulation treatment device which comprises a first supporting frame, a pretreatment tank is arranged at the upper end of the first supporting frame, a supporting plate is arranged in the middle above the pretreatment tank, a motor is arranged in the middle above the supporting plate, and a rotating shaft of the motor penetrates through the supporting plate and is fixedly connected with a stirring rod. A biological treatment tank is arranged on the side, close to the first supporting frame, of the second supporting frame, a screen frame is arranged in the biological treatment tank, biological filler is arranged in the screen frame, and a membrane filtering tank is arranged on the side, away from the first supporting frame, of the biological treatment tank; an ultrafiltration membrane assembly is arranged in the membrane filtration tank, and a clear water tank is arranged on one side, far away from the biological treatment tank, of the membrane filtration tank. The treatment device is simple in structure and high in wastewater treatment efficiency, the wastewater purification effect is effectively improved, and pollution of wastewater to the environment is avoided.

Description

Technical Field

[0001] This utility model relates to the field of dyeing and printing wastewater treatment technology, and in particular to a dyeing and printing wastewater recycling treatment device. Background Technology

[0002] As a crucial link in the textile industry chain, the dyeing and printing industry has maintained a high growth rate. The industry generates billions of cubic meters of wastewater annually, characterized by large volume, high color intensity, complex composition, and high organic content. This wastewater contains not only various dyes, sizing agents, auxiliaries, and oils, but also a large amount of acidic and alkaline substances and fiber impurities. Some dye molecules have stable structures and are difficult to degrade using conventional methods. Existing treatment methods, such as physical sedimentation, can only remove some larger suspended solids, with limited effectiveness in removing dissolved organic matter and color pollutants. Some biological treatment devices suffer from low organic matter degradation efficiency due to poorly designed biological treatment units, inhibiting microbial activity and failing to meet emission standards. Therefore, we propose a wastewater recycling treatment device for dyeing and printing. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a wastewater recycling treatment device for dyeing and printing wastewater. This invention solves the problems of existing treatment methods that rely solely on physical sedimentation, which can only remove some larger suspended particles and has limited effectiveness in removing dissolved organic matter, color, and other pollutants; and of devices that employ biological treatment methods, which suffer from low organic matter degradation efficiency due to poorly designed biological treatment units that inhibit microbial activity, thus failing to meet emission standards.

[0004] This utility model discloses a wastewater recycling treatment device for dyeing and printing, comprising a first support frame, a pretreatment tank at the upper end of the first support frame, a support plate at the center above the pretreatment tank, a motor at the center above the support plate, the motor's rotating shaft passing through the support plate and fixedly connected to a stirring rod, the stirring rod having multiple equidistantly arranged stirring blades, a second support frame on one side of the first support frame, a biological treatment tank on the side of the second support frame closer to the first support frame, a mesh frame inside the biological treatment tank containing biological packing material, an aerator on the side of the second support frame located near the biological treatment tank, an aeration pipe at the bottom of the biological treatment tank connected to the output end of the aerator, a membrane filter tank on the side of the biological treatment tank away from the first support frame containing an ultrafiltration membrane module, and a clear water tank on the side of the membrane filter tank away from the biological treatment tank.

[0005] In the above scheme, the lower end of the first support frame is provided with a first pump body, the input end of the first pump body is connected to the middle of the pretreatment tank through a pipe, and the output end of the first pump body is connected to the upper end of the biological treatment tank through a pipe.

[0006] In the above scheme, the second support frame is provided with a second pump body on one side of the membrane filter tank. The input end of the second pump body is connected to the lower end of the biological treatment tank through a pipe, and the output end of the second pump body is connected to the upper end of the membrane filter tank through a pipe.

[0007] In the above scheme, the second support frame is provided with a third pump body on one side of the water tank. The input end of the third pump body is connected to the lower end of the membrane filter tank through a pipe, and the output end of the third pump body is connected to the upper end of the water tank through a pipe.

[0008] In the above scheme, an exhaust valve is provided on one side above the biological treatment tank, and a first valve is provided on the exhaust valve.

[0009] In the above scheme, the lower end of the water tank is provided with a drain pipe, and the drain pipe is provided with a second valve.

[0010] In the above scheme, a filter screen is provided at the upper end of the pretreatment tank.

[0011] In the above scheme, a drain pipe is provided in the middle of the lower part of the pretreatment tank, and a sealing cap is provided on the drain pipe.

[0012] The advantages and beneficial effects of this utility model are as follows: This utility model provides a wastewater recycling treatment device for dyeing and printing. The rotating stirring blades agitate the wastewater and chemical solutions inside the pretreatment tank, ensuring thorough mixing and achieving the purpose of wastewater pretreatment. During aeration, oxygen is evenly supplied to the biological treatment tank, providing a suitable living environment for microorganisms. The biological packing material, a porous, elastic, three-dimensional packing with a large specific surface area, fills the biological treatment tank and can hold a large number of microorganisms, effectively degrading organic matter within the wastewater. The ultrafiltration membrane module has a specific pore structure, effectively trapping impurities such as tiny particles, colloids, bacteria, viruses, and large organic molecules in the wastewater. This treatment device has a simple structure, high wastewater treatment efficiency, effectively improving wastewater purification and preventing environmental pollution. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a first sectional view of the present invention;

[0016] Figure 3 This is a second sectional view of the present invention.

[0017] In the diagram: 1. First support frame; 2. Pretreatment tank; 3. Support plate; 4. Motor; 5. Stirring rod; 6. Stirring blade; 7. Second support frame; 8. Biological treatment tank; 9. Mesh frame; 10. Biological packing material; 11. Aerator; 12. Aeration pipe; 13. Membrane filter tank; 14. Ultrafiltration membrane module; 15. Clear water tank; 16. Filter screen; 17. First pump body; 18. Pipeline; 19. Second pump body; 20. Exhaust valve; 21. First valve; 22. Drain pipe; 23. Second valve; 24. Sewage pipe; 25. Third pump body. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0019] like Figure 1-3As shown, this utility model is a wastewater recycling treatment device for dyeing and printing, including a first support frame 1. A pretreatment tank 2 is provided at the upper end of the first support frame 1. A support plate 3 is provided at the middle of the upper part of the pretreatment tank 2. A motor 4 is provided at the middle of the upper part of the support plate 3. The rotating shaft of the motor 4 passes through the support plate 3 and is fixedly connected to a stirring rod 5. Multiple equidistant stirring blades 6 are provided on the stirring rod 5. When the motor 4 is working, it drives the stirring rod 5 to rotate. Through the transmission of the stirring rod 5, the stirring blades 6 also rotate. The rotating stirring blades 6 can stir the wastewater and chemical solution inside the pretreatment tank 2, allowing the wastewater and chemical solution to be fully mixed, thereby achieving the purpose of wastewater pretreatment. A second support frame 7 is provided on one side of the first support frame 1. A biological treatment tank 8 is provided on the side of the second support frame 7 near the first support frame 1. A mesh frame 9 is provided inside the biological treatment tank 8, and biological packing material 10 is provided inside the mesh frame 9. An aerator 11 is provided on one side of the second support frame 7 near the biological treatment tank 8. The bottom of the biological treatment tank 8... The biological treatment tank is equipped with aeration pipes 12, which are connected to the output end of the aerator 11. The aeration pipes 12 are made of corrosion-resistant PVC and are evenly distributed at the bottom of the tank, with multiple aeration heads. When the aerator 11 is operating, it can evenly oxygenate the biological treatment tank, providing a suitable living environment for microorganisms. Biological packing material 10 fills the biological treatment tank. This packing material 10 is a porous, elastic, three-dimensional packing material with a large specific surface area, capable of adhering to a large number of microorganisms, thus effectively treating the internal wastewater. The biological treatment tank 8 is equipped with a membrane filter tank 13 on the side away from the first support frame 1. The membrane filter tank 13 is equipped with an ultrafiltration membrane module 14. The ultrafiltration membrane module 14 has a specific pore structure, which can effectively intercept impurities such as tiny particles, colloids, bacteria, viruses and macromolecular organic matter in the wastewater. The membrane filter tank 13 is equipped with a clear water tank 15 on the side away from the biological treatment tank 8. The clear water tank 15 is equipped with a water quality testing device, including a pH meter, a turbidity meter, a COD meter, etc.

[0020] The first support frame 1 is provided with a first pump body 17 at its lower end. The input end of the first pump body 17 is connected to the middle of the pretreatment tank 2 through a pipe 18. The output end of the first pump body 17 is connected to the upper end of the biological treatment tank 8 through a pipe 18. When the first pump body 17 is working, it transmits the pretreated wastewater to the inside of the biological treatment tank 8.

[0021] The second support frame 7 is provided with a second pump body 19 on one side of the membrane filter tank 13. The input end of the second pump body 19 is connected to the lower end of the biological treatment tank 8 through a pipe 18, and the output end of the second pump body 19 is connected to the upper end of the membrane filter tank 13 through a pipe 18. When the second pump body 19 is working, it can transport the biologically treated wastewater so that the wastewater can enter the interior of the membrane filter tank 13.

[0022] The second support frame 7 is provided with a third pump body 25 on one side of the clear water tank 15. The input end of the third pump body 25 is connected to the lower end of the membrane filter tank 13 through a pipe 18, and the output end of the third pump body 25 is connected to the upper end of the clear water tank 15 through a pipe 18. When the third pump body 25 is working, it can transfer the wastewater treated by the membrane filter tank 13 so that the wastewater can enter the interior of the clear water tank 15.

[0023] An exhaust valve 20 is provided on one side above the biological treatment tank 8. The exhaust valve 20 is equipped with a first valve 21. Gas inside the biological treatment tank 8 can be discharged through the exhaust valve 20. The first valve 21 can control the opening and closing of the first valve 21.

[0024] The lower end of the clean water tank 15 is provided with a drain pipe 22, and a second valve 23 is provided on the drain pipe 22. Water inside the clean water tank 15 can be discharged through the drain pipe 22, and the second valve 23 can control the opening and closing of the drain pipe 22.

[0025] The pretreatment tank 2 is equipped with a filter screen 16 at the upper end, which can filter solid impurities in the wastewater entering the pretreatment tank 2.

[0026] A drain pipe 24 is provided in the lower middle part of the pretreatment tank 2. The drain pipe 24 is equipped with a sealing cover, and the impurities precipitated inside the pretreatment tank 2 can be discharged through the drain pipe 24.

[0027] Specifically, in this utility model, when the motor 4 is working, the motor 4 drives the stirring rod 5 to rotate. Through the transmission of the stirring rod 5, the stirring blade 6 also rotates. The rotating stirring blade 6 can stir the wastewater and the chemical solution inside the pretreatment tank 2, so that the wastewater and the chemical solution can be fully mixed, thereby achieving the purpose of wastewater pretreatment. The aeration pipe 12 is made of corrosion-resistant PVC material and is evenly distributed at the bottom of the biological treatment tank. It is equipped with multiple aeration heads. When the aerator 11 is working, it can evenly fill the biological treatment tank with oxygen, providing a suitable living environment for microorganisms. The biological packing material 10 is filled in the biological treatment tank. The biological packing material 10 is a porous elastic three-dimensional packing material with a large specific surface area, which can attach a large number of microorganisms, thereby effectively degrading the organic matter inside the sewage. The ultrafiltration membrane module 14 has a specific pore structure, which can effectively intercept impurities such as small particles, colloids, bacteria, viruses and large molecular organic matter in the wastewater.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 wastewater recycling treatment device for dyeing and printing, comprising a first support frame (1), characterized in that, The first support frame (1) is provided with a pretreatment tank (2) at its upper end. A support plate (3) is provided at the middle of the upper part of the pretreatment tank (2). A motor (4) is provided at the middle of the upper part of the support plate (3). The rotating shaft of the motor (4) passes through the support plate (3) and is fixedly connected to the stirring rod (5). The stirring rod (5) is provided with a plurality of stirring blades (6) arranged at equal intervals. A second support frame (7) is provided on one side of the first support frame (1). A biological treatment tank (8) is provided on the side of the second support frame (7) close to the first support frame (1). A wire mesh frame is provided inside the biological treatment tank (8). (9) The mesh frame (9) is provided with biological packing material (10), the second support frame (7) is provided with an aerator (11) on one side of the biological treatment tank (8), the bottom of the biological treatment tank (8) is provided with an aeration pipe (12), the aeration pipe (12) is connected to the output end of the aerator (11), the biological treatment tank (8) is provided with a membrane filter tank (13) on the side away from the first support frame (1), the membrane filter tank (13) is provided with an ultrafiltration membrane module (14), and the membrane filter tank (13) is provided with a clear water tank (15) on the side away from the biological treatment tank (8).

2. The dyeing and printing wastewater recycling treatment device according to claim 1, characterized in that, The first support frame (1) is provided with a first pump body (17) at its lower end. The input end of the first pump body (17) is connected to the middle of the pretreatment tank (2) through a pipe (18), and the output end of the first pump body (17) is connected to the upper end of the biological treatment tank (8) through a pipe (18).

3. The dyeing and printing wastewater recycling treatment device according to claim 1, characterized in that, The second support frame (7) is located on one side of the membrane filter tank (13) and has a second pump body (19). The input end of the second pump body (19) is connected to the lower end of the biological treatment tank (8) through a pipe (18), and the output end of the second pump body (19) is connected to the upper end of the membrane filter tank (13) through a pipe (18).

4. The dyeing and printing wastewater recycling treatment device according to claim 1, characterized in that, The second support frame (7) is located on one side of the water tank (15) and has a third pump body (25). The input end of the third pump body (25) is connected to the lower end of the membrane filter tank (13) through a pipe (18), and the output end of the third pump body (25) is connected to the upper end of the water tank (15) through a pipe (18).

5. The dyeing and printing wastewater recycling treatment device according to claim 1, characterized in that, An exhaust valve (20) is provided on one side above the biological treatment tank (8), and a first valve (21) is provided on the exhaust valve (20).

6. The dyeing and printing wastewater recycling treatment device according to claim 1, characterized in that, The lower end of the water tank (15) is provided with a drain pipe (22), and a second valve (23) is provided on the drain pipe (22).

7. The dyeing and printing wastewater recycling treatment device according to claim 1, characterized in that, The pretreatment tank (2) is equipped with a filter screen (16) at its upper end.

8. The dyeing and printing wastewater recycling treatment device according to claim 1, characterized in that, The pretreatment tank (2) is provided with a drain pipe (24) in the middle of its lower part, and the drain pipe (24) is provided with a sealing cap.

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