A multi-stage filtering and recycling device for plating wastewater treatment

Abstract

The utility model discloses a multistage filtration and reuse device for plating wastewater treatment, including filter box no.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a multi-stage filtration and reuse device for treating coating wastewater. Background Technology

[0002] After the workpiece is processed, a coating treatment is required on the surface of the workpiece to extend its service life. This process generates wastewater. Since the wastewater is full of pollutants, including bacteria, chemicals and other toxins, it needs to be treated before discharge to avoid environmental impact. Wastewater treatment uses physical, chemical and biological methods to purify the wastewater, reduce pollution, and even achieve wastewater recycling and reuse, making full use of water resources.

[0003] Wastewater treatment involves steps such as collection, filtration, primary treatment, and secondary treatment. However, during the filtration of foreign matter and particulate matter in wastewater, after the wastewater and foreign matter are separated by a filter screen, the foreign matter can easily remain on the filter screen and accumulate, causing the filter pores to become clogged, thus affecting the subsequent filtration of wastewater. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage filtration and reuse device for treating coating wastewater, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage filtration and reuse device for treating plating wastewater, comprising a filter box one, wherein a mounting plate one and a mounting plate two are symmetrically arranged inside the filter box one, and a coarse filter screen and a precision filter screen are respectively arranged inside the mounting plate one and the mounting plate two, wherein the coarse filter screen and the precision filter screen are both inclinedly arranged inside the filter box one, and sealing strips are symmetrically arranged on both sides of the coarse filter screen and the precision filter screen, wherein the sealing strips are in contact with the inner wall of the filter box one, and two drain ports are opened on both sides of the filter box one, wherein the drain ports are flush with the bottom of the coarse filter screen and the precision filter screen.

[0006] As a further preferred embodiment of this technical solution, a connecting shell is fixedly connected to the front of the filter box 1, and a motor 1 is fixedly connected to the side of the connecting shell away from the filter box 1. The output shaft of the motor 1 passes through the connecting shell and extends into the interior of the connecting shell. A drive wheel is fixedly sleeved on the output shaft of the motor 1. A toothed belt is engaged on the surface of the drive wheel, and a transmission wheel is engaged on the side of the toothed belt away from the drive wheel.

[0007] As a further preferred embodiment of this technical solution, two rotating rods are symmetrically arranged inside the filter box. The two rotating rods pass through the filter box and are fixedly connected to the drive wheel and the transmission wheel. A convex rib plate is fixedly sleeved on the surface of the rotating rod.

[0008] As a further preferred embodiment of this technical solution, the top of the filter box is fixedly connected to three support legs, the top of the support legs is fixedly connected to a processing box, the top of the processing box is fixedly connected to a liquid inlet and a water inlet, both of which are equipped with solenoid valves, the top of the processing box is fixedly connected to a motor, the output shaft of the motor is fixedly connected to a connecting shaft, and a spiral blade is fixedly sleeved on the surface of the connecting shaft.

[0009] As a further preferred embodiment of this technical solution, a guide pipe is fixedly connected to the bottom of the treatment box, a connecting pipe is fixedly connected to the bottom of the guide pipe, and the end of the connecting pipe away from the guide pipe is fixedly connected to the filter box.

[0010] As a further preferred embodiment of this technical solution, a pump body is fixedly connected to the side of the filter box one away from the connecting shell, an outlet pipe is fixedly connected between the pump body and the filter box one, an inlet pipe is fixedly connected to the side of the pump body away from the filter box one, a filter box two is fixedly connected to the end of the inlet pipe away from the pump body, a sewage pipe and a backwash pipe are fixedly connected to one side of the filter box two, and an outlet is fixedly connected to the bottom of the filter box two.

[0011] As a further preferred embodiment of this technical solution, the filter box two is provided with an ultrafiltration membrane assembly and an activated carbon layer inside. An installation frame is fixedly connected to the side of the filter box two away from the sewage pipe. A barrier plate is fixedly connected between the installation frame and the filter box two. Multiple ultraviolet sterilization lamps are fixedly connected inside the installation frame.

[0012] This utility model provides a multi-stage filtration and reuse device for treating coating wastewater, which has the following beneficial effects:

[0013] (1) This utility model introduces wastewater into the filter box through a connecting pipe. The solid particles and fine particulate impurities in the wastewater are filtered out by the cooperation of the coarse filter screen and the precision filter screen. At the same time, the motor is started, and its output shaft drives the drive wheel to rotate. The power is transmitted to the transmission wheel through the toothed belt, so that the two rotating rods drive the convex plate to rotate and knock on the precision filter screen and the coarse filter screen to generate vibration. This causes the particles to move down along the inclination angle and out of the sewage outlet, thereby ensuring the working efficiency of the device.

[0014] (2) In this utility model, wastewater is introduced into the treatment tank through the inlet, and flocculant is added into the treatment tank through the liquid inlet. The second motor is started, and the connecting shaft drives the spiral blade to rotate counterclockwise, thereby mixing and stirring the wastewater and the agent, so that the impurities in the wastewater form a flocculated state, and the bottom impurities are transported upward through the spiral blade to improve the mixing effect. After the reaction is completed, the second motor drives the spiral blade to reverse and transports the impurities and wastewater to the guide pipe, thereby facilitating the discharge of wastewater. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the drive wheel and transmission wheel structure of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the filter box of this utility model;

[0019] Figure 5 This is a schematic diagram of the two-section structure of the filter box of this utility model.

[0020] In the diagram: 1. Filter box one; 2. Mounting plate one; 3. Coarse filter screen; 4. Mounting plate two; 5. Precision filter screen; 6. Sealing strip; 7. Drain outlet; 8. Connecting shell; 9. Motor one; 10. Drive wheel; 11. Toothed belt; 12. Transmission wheel; 13. Rotating rod; 14. Ribbed plate; 15. Support leg; 16. Treatment box; 17. Liquid inlet; 18. Water inlet; 19. Motor two; 20. Connecting shaft; 21. Spiral blade; 22. Guide pipe; 23. Connecting pipe; 24. Water outlet pipe; 25. Pump body; 26. Water inlet pipe; 27. Filter box two; 28. Drain outlet pipe; 29. ​​Backwash pipe; 30. Water outlet; 31. Ultrafiltration membrane module; 32. Activated carbon layer; 33. Mounting frame; 34. Barrier plate; 35. Ultraviolet sterilization lamp. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1 to 5 As shown in this embodiment, a multi-stage filtration and reuse device for treating plating wastewater includes a filter box 1. A mounting plate 2 and a mounting plate 4 are symmetrically arranged inside the filter box 1. A coarse filter screen 3 and a precision filter screen 5 are respectively arranged inside the mounting plate 2 and the mounting plate 4. Both the coarse filter screen 3 and the precision filter screen 5 are inclined inside the filter box 1. Sealing strips 6 are symmetrically arranged on both sides of the coarse filter screen 3 and the precision filter screen 5. The sealing strips 6 are in contact with the inner wall of the filter box 1. Two drain ports 7 are opened on both sides of the filter box 1, and the drain ports 7 are flush with the bottom of the coarse filter screen 3 and the precision filter screen 5.

[0023] A connecting housing 8 is fixedly connected to the front of the filter box 1. A motor 9 is fixedly connected to the side of the connecting housing 8 away from the filter box 1. The output shaft of the motor 9 passes through the connecting housing 8 and extends into the interior of the connecting housing 8. A drive wheel 10 is fixedly sleeved on the output shaft of the motor 9. A toothed belt 11 meshes with the surface of the drive wheel 10. A transmission wheel 12 meshes with the side of the toothed belt 11 away from the drive wheel 10.

[0024] Two rotating rods 13 are symmetrically arranged inside the filter box 1. The two rotating rods 13 pass through the filter box 1 and are fixedly connected to the drive wheel 10 and the transmission wheel 12. The surface of the rotating rod 13 is fixedly sleeved with a convex rib plate 14.

[0025] The coarse filter screen 3 and the precision filter screen 5 work together to filter out solid particles and fine particulate impurities from the wastewater. At the same time, the motor 9 is started, and its output shaft drives the drive wheel 10 to rotate. The power is transmitted to the transmission wheel 12 through the toothed belt 11, causing the two rotating rods 13 to drive the convex plate 14 to rotate. This causes the precision filter screen 5 and the coarse filter screen 3 to be struck and vibrated, which causes the particles to move down along the inclined angle and be removed from the sewage outlet 7, thus ensuring the working efficiency of the device. Sealing gaskets are set on both sides of the coarse filter screen 3 and the precision filter screen 5 to ensure the sealing effect at the connection and prevent wastewater leakage.

[0026] The top of filter box 1 is fixedly connected to three support legs 15. The top of the support legs 15 is fixedly connected to a treatment box 16. The top of the treatment box 16 is fixedly connected to an inlet 17 and a water inlet 18. Both the inlet 17 and the water inlet 18 are equipped with solenoid valves. The top of the treatment box 16 is fixedly connected to a motor 29. The output shaft of the motor 29 is fixedly connected to a connecting shaft 20. The surface of the connecting shaft 20 is fixedly fitted with a spiral blade 21.

[0027] A guide pipe 22 is fixedly connected to the bottom of the treatment box 16, and a connecting pipe 23 is fixedly connected to the bottom of the guide pipe 22. The end of the connecting pipe 23 away from the guide pipe 22 is fixedly connected to the filter box 1.

[0028] Wastewater is introduced into the treatment tank 16 through inlet 18, and flocculant is added into the treatment tank 16 through inlet 17. Motor 19 is started, and connecting shaft 20 drives spiral blade 21 to rotate counterclockwise, thereby mixing and stirring the wastewater and the agent, causing impurities in the wastewater to form a flocculated state. The impurities at the bottom are transported upward through spiral blade 21 to improve the mixing effect. After the reaction is completed, motor 19 drives spiral blade 21 to reverse and transports the impurities and wastewater to guide pipe 22, thereby facilitating the discharge of wastewater.

[0029] A pump body 25 is fixedly connected to the side of filter box 1 away from the connecting housing 8. A water outlet pipe 24 is fixedly connected between the pump body 25 and filter box 1. A water inlet pipe 26 is fixedly connected to the side of the pump body 25 away from filter box 1. A filter box 27 is fixedly connected to the end of the water inlet pipe 26 away from the pump body 25. A sewage pipe 28 and a backwash pipe 29 are fixedly connected to one side of filter box 27. A water outlet 30 is fixedly connected to the bottom of filter box 27.

[0030] By installing a drain pipe 28 and a backwash pipe 29 on one side of the filter box 27, clean water is introduced into the backwash pipe 29 after the wastewater treatment is completed, so that the organic matter accumulated on the ultrafiltration membrane module and the activated carbon layer 31 flows out from the drain pipe 28 with the water flow, thereby completing the cleaning and ensuring the filtration effect of the device.

[0031] The filter box 27 is equipped with an ultrafiltration membrane module 31 and an activated carbon layer 32. An installation frame 33 is fixedly connected to the side of the filter box 27 away from the sewage pipe 28. A barrier plate 34 is fixedly connected between the installation frame 33 and the filter box 27. Multiple ultraviolet sterilization lamps 35 are fixedly connected inside the installation frame 33.

[0032] The ultrafiltration membrane module adopts a hollow fiber membrane form. Under pressure, water molecules and small molecule solutes in the wastewater pass through the ultrafiltration membrane, while large molecules, colloidal substances, and microorganisms are trapped on one side of the membrane to form a concentrate. This can separate large molecules, colloidal substances, and some dissolved organic matter in the wastewater. The activated carbon layer 31 removes residual organic matter, color, and odor from the wastewater, further improving the water quality. The wastewater is then sterilized by the ultraviolet sterilization lamp 35 to meet the reuse standard. The barrier plate 34 is made of transparent plastic and works with the mounting frame 33 to protect the ultraviolet sterilization lamp 35 while ensuring that the wiring harness passes through for sterilization.

[0033] This utility model provides a multi-stage filtration and reuse device for treating coating wastewater, the specific working principle of which is as follows:

[0034] In use, wastewater is introduced into the treatment tank 16 through inlet 18, and flocculant is added into the treatment tank 16 through inlet 17. Motor 19 is started, and connecting shaft 20 drives spiral blades 21 to rotate counterclockwise, thus mixing and stirring the wastewater and reagent, causing impurities in the wastewater to flocculate. The spiral blades 21 then transport the impurities from the bottom upwards. After the reaction is complete, motor 19 drives spiral blades 21 to rotate in reverse, transporting the impurities and wastewater through guide pipe 22. The wastewater enters filter box 1 through connecting pipe 23, where it is filtered by the coarse filter screen 3 and the fine filter screen 5. The system filters out solid particles and fine particulate impurities from the wastewater. Motor 9 is started, driving wheel 10 to rotate. Power is transmitted to transmission wheel 12 via toothed belt 11, causing two rotating rods 13 to rotate the convex plate 14, which in turn strikes the precision filter screen 5 and the coarse filter screen 3, causing particles to move downwards along the inclined angle and exit from the drain outlet 7. Pump 25 is started, pumping the filtered wastewater into filter box 27. The wastewater is further treated through ultrafiltration membrane assembly and activated carbon layer 31, and then sterilized by ultraviolet sterilization lamp 35. After sterilization, outlet 30 is opened to discharge the wastewater.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage filtration and reuse device for treating coating wastewater, comprising a filter box (1), characterized in that: The filter box 1 (1) is symmetrically provided with mounting plate 1 (2) and mounting plate 2 (4). The mounting plate 1 (2) and mounting plate 2 (4) are respectively provided with coarse filter screen (3) and precision filter screen (5). The coarse filter screen (3) and precision filter screen (5) are both inclinedly arranged inside the filter box 1 (1). The coarse filter screen (3) and precision filter screen (5) are symmetrically provided with sealing strips (6) on both sides. The sealing strips (6) are in contact with the inner wall of the filter box 1 (1). The filter box 1 (1) has two drain ports (7) on both sides. The drain ports (7) are flush with the bottom of the coarse filter screen (3) and precision filter screen (5).

2. The multi-stage filtration and reuse device for treating coating wastewater according to claim 1, characterized in that: A connecting shell (8) is fixedly connected to the front of the filter box (1). A motor (9) is fixedly connected to the side of the connecting shell (8) away from the filter box (1). The output shaft of the motor (9) passes through the connecting shell (8) and extends into the interior of the connecting shell (8). A drive wheel (10) is fixedly sleeved on the output shaft of the motor (9). A toothed belt (11) meshes with the surface of the drive wheel (10). A transmission wheel (12) meshes with the side of the toothed belt (11) away from the drive wheel (10).

3. The multi-stage filtration and reuse device for treating coating wastewater according to claim 1, characterized in that: The filter box (1) is symmetrically arranged with two rotating rods (13). The two rotating rods (13) pass through the filter box (1) and are fixedly connected to the drive wheel (10) and the transmission wheel (12). The surface of the rotating rod (13) is fixedly fitted with a convex rib plate (14).

4. A multi-stage filtration and reuse device for treating coating wastewater according to claim 1, characterized in that: The top of the filter box (1) is fixedly connected to three support legs (15), the top of the support legs (15) is fixedly connected to a processing box (16), the top of the processing box (16) is fixedly connected to an inlet (17) and a water inlet (18), both of which are equipped with solenoid valves, the top of the processing box (16) is fixedly connected to a motor (19), the output shaft of the motor (19) is fixedly connected to a connecting shaft (20), and a spiral blade (21) is fixedly sleeved on the surface of the connecting shaft (20).

5. A multi-stage filtration and reuse device for treating coating wastewater according to claim 4, characterized in that: The bottom of the treatment box (16) is fixedly connected to a guide pipe (22), and the bottom of the guide pipe (22) is fixedly connected to a connecting pipe (23). The end of the connecting pipe (23) away from the guide pipe (22) is fixedly connected to the filter box (1).

6. A multi-stage filtration and reuse device for treating coating wastewater according to claim 1, characterized in that: A pump body (25) is fixedly connected to the side of the filter box (1) away from the connecting shell (8). A water outlet pipe (24) is fixedly connected between the pump body (25) and the filter box (1). A water inlet pipe (26) is fixedly connected to the side of the pump body (25) away from the filter box (1). A filter box (27) is fixedly connected to the end of the water inlet pipe (26) away from the pump body (25). A sewage pipe (28) and a backwash pipe (29) are fixedly connected to one side of the filter box (27). A water outlet (30) is fixedly connected to the bottom of the filter box (27).

7. A multi-stage filtration and reuse device for treating plating wastewater according to claim 6, characterized in that: The filter box 2 (27) is equipped with an ultrafiltration membrane assembly (31) and an activated carbon layer (32). A mounting frame (33) is fixedly connected to the side of the filter box 2 (27) away from the sewage pipe (28). A barrier plate (34) is fixedly connected between the mounting frame (33) and the filter box 2 (27). Multiple ultraviolet sterilization lamps (35) are fixedly connected inside the mounting frame (33).

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