A wastewater treatment device for electrode foil production

Abstract

A wastewater treatment device for electrode foil production includes a sedimentation tank with an inlet on the upper left side. A mixing tank has a support leg at its bottom. A discharge pipe is located at the bottom of the sedimentation tank, with a discharge mechanism at its upper end and a discharge switch at its lower end. A first level sensor is located on the inner wall of the sedimentation tank below the inlet, and a second level sensor is located below the first level sensor. A mixing tank is located to the right of the sedimentation tank, and a first water pump is located between the mixing tank and the sedimentation tank. A filter screen is installed inside the sedimentation tank. The outlet of the first water pump is connected to the upper end of the mixing tank via a water pipe. A stirring mechanism is installed inside the mixing tank. An automatic dosing mechanism is located at the upper right side of the mixing tank. A third level sensor is located at the upper inside of the mixing tank, and a fourth level sensor is located at the lower inside of the mixing tank. A drain pipe is located at the bottom of the mixing tank, and a second water pump is connected to the drain pipe. This invention has a simple structure and is easy to use.

Description

Technical Field

[0001] This utility model belongs to the field of electrode foil production technology, and in particular relates to a wastewater treatment device for electrode foil production. Background Technology

[0002] Electrode foil is a key raw material in the manufacture of aluminum electrolytic capacitors. The rapid development of the electronics industry, especially the dramatic expansion of the market for complete products such as communication products, computers, and home appliances, has greatly boosted the development of the aluminum electrode foil industry. Simultaneously, the increasingly urgent requirements for miniaturization, high performance, and surface-mount aluminum electrolytic capacitors have placed higher technical and quality demands on the electrode foil manufacturing industry, as well as on the treatment of electrode foil wastewater. However, existing electrode foil wastewater treatment devices have several problems. After impurities settle in the sedimentation tank, they are difficult to discharge from the sedimentation tank, requiring manual cleaning, which increases labor costs and has low cleaning efficiency. Furthermore, due to the high acidity of the wastewater, alkaline solutions need to be added to neutralize it. Current technology requires manual addition of these solutions, which is inefficient, and adding solutions to the mixing tank is inconvenient. Utility Model Content

[0003] To address the technical problems of inconsistent discharge of impurities in the sedimentation tank and inconvenience in adding chemicals to the mixing tank in the prior art, this utility model provides a wastewater treatment device for electrode foil production, including a vertically arranged sedimentation tank. The top of the sedimentation tank is fixed with a vertically arranged exhaust port, and an activated carbon layer is provided inside the exhaust port. The activated carbon layer can adsorb toxic gases in the gas. An inlet is provided on the upper left side of the sedimentation tank, through which waste liquid is injected into the sedimentation tank. Several support legs are provided at the bottom of the sedimentation tank. The bottom of the sedimentation tank is equipped with a vertically arranged feed pipe, and the upper end of the feed pipe is equipped with a feed mechanism to assist in removing sediment from the sedimentation tank. The feed mechanism includes a horizontally arranged rotating shaft, the two ends of which are rotatably mounted on the feed pipe through bearings. Several material-pulling plates are fixed on the rotating shaft, and a feed motor is fixed on the outside of the feed pipe. The power output shaft of the feed motor is connected to the rotating shaft for transmission. The feed motor is connected to the power supply and PLC controller through a cable. When the feed motor is started, it drives the rotating shaft to rotate. The material-pulling plates on the rotating shaft push the sediment and debris in the feed pipe to the lower end of the feed pipe. A discharge switch is located at the lower end of the discharge pipe. The discharge switch includes a support block fixed to the right side of the discharge pipe. A horizontally positioned groove is formed on the support block, within which a baffle is slidably connected. The right end of the baffle extends right out of the support block, and the left end extends left into the discharge pipe. An electric actuator, parallel to the baffle, is fixed to the discharge pipe above the support block. The right end of the electric actuator is fixed to the baffle via a fixing plate. Telescopic guide rods are located on both the upper and lower sides of the electric actuator. The left end of the telescopic guide rod is fixed to the discharge pipe, and the right end is fixed to the fixing plate. The electric actuator is connected to a power source and a PLC controller via a cable. Activating the electric actuator moves the baffle, causing the sediment and debris in the discharge pipe to move downwards and exit the pipe, facilitating control over the flow of sediment. A first liquid level sensor is installed on the inner wall of the sedimentation tank below the inlet. A second liquid level sensor is installed below the first liquid level sensor. Both the first and second liquid level sensors are connected to a power supply and a PLC controller via cables to facilitate the detection of the waste liquid level in the sedimentation tank. A vertically installed mixing tank is located to the right of the sedimentation tank, and a first water pump is installed between the mixing tank and the sedimentation tank. The inlet of the first water pump is connected to the lower end of the sedimentation tank via a water pipe. The sedimentation tank contains a filter screen that acts as a filter. The outlet of the first water pump is connected to the upper end of the mixing tank via a water pipe. The first water pump is connected to a power supply and a PLC controller via cables. When the first water pump is started, it pumps the filtered water from the sedimentation tank into the mixing tank.The mixing tank is equipped with a stirring mechanism, which includes a vertically arranged stirring shaft. The upper end of the stirring shaft is rotatably mounted on the upper end of the mixing tank, and several stirring blades are fixed on the stirring shaft. A vertically arranged stirring motor is fixed at the top of the mixing tank, and the power output shaft of the stirring motor is connected to the stirring shaft. The stirring motor is connected to the power supply and PLC controller through a cable. When the stirring motor is started, it drives the stirring blades to rotate through the stirring shaft. The stirring blades can stir and mix the liquid mixture in the mixing tank, thereby accelerating the mixing efficiency of the liquid. An automatic dosing mechanism is located on the upper right side of the mixing tank. This mechanism includes a horizontally positioned dosing box with a vertically positioned dosing port at its top. A vertically positioned support tube is fixed to the upper interior of the mixing tank. The top of the support tube is sealed, and a discharge port is located at its upper end. A piston is slidably connected inside the support tube, and a vertically positioned support rod is fixed to the bottom of the piston. The support rod is slidably and sealed to the support tube, and a float is fixed to the bottom of the support rod. A dosing pipe connects the bottom of the dosing box to the lower end of the support tube. When the liquid level in the mixing tank is low, the alkaline solution in the dosing box is dispensed via... The dosing tube flows into the support tube. As the liquid level in the mixing tank rises, the float moves upward under the buoyancy of the liquid, pushing the piston upward along the support tube. The piston pushes the alkaline solution in the support tube through the discharge port into the mixing tank. At this time, the alkaline solution in the dosing box flows into the lower end of the support tube through the dosing tube. After the liquid in the mixing tank is discharged, as the liquid level in the mixing tank drops, the piston moves downward under the action of the float, support rod, and piston gravity, squeezing the alkaline solution at the lower end of the support tube into the dosing box. This process repeats, achieving automatic addition of alkaline solution to the mixing tank. A third liquid level sensor is installed at the upper end of the mixing tank, and a fourth liquid level sensor is installed at the lower end. A drain pipe is opened at the bottom of the mixing tank, and a second water pump is connected to the drain pipe. The third and fourth liquid level sensors are both connected to a power supply and a PLC controller via cables to facilitate the detection of the liquid level in the mixing tank.

[0004] Preferably, the sedimentation tank is provided with a vertically arranged baffle, the upper end of which is higher than the liquid inlet, and the lower end of the baffle extends downward to the lower end of the sedimentation tank. A horizontally arranged filter plate is provided between the right side of the baffle and the sedimentation tank, and the filter plate is located at the lower end of the filter screen.

[0005] Preferably, after the piston moves down to the lower end of the support tube, the piston is lower than the lower end of the dosing tube.

[0006] Preferably, the buoyancy of the float is greater than the sum of the weights of the float, support rod, piston, and the medicine in the support tube, and under the weight of the float, support rod, and piston, the medicine in the support tube below the piston can be squeezed into the dosing box.

[0007] The above scheme has the following advantages: The filter plates and screens inside the sedimentation tank facilitate the settling of impurities in the waste liquid into the discharge pipe at the bottom of the sedimentation tank, thus improving sedimentation and filtration efficiency. The stirring mechanism inside the mixing tank facilitates the mixing and stirring of the liquid, improving mixing efficiency and work efficiency. The automatic dosing mechanism facilitates the automatic addition of alkaline solution from the dosing box to the mixing tank, saving labor and reducing labor costs. The first and second liquid level sensors facilitate the detection of the waste liquid level in the sedimentation tank. The third and fourth liquid level sensors facilitate the detection of the liquid level in the mixing tank. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 for Figure 1 Enlarged view of part A; Figure 3 for Figure 1 Enlarged view of part B.

[0009] Reference numerals: 1. Sedimentation tank; 2. Feeding mechanism; 3. Feeding switch; 4. Automatic dosing mechanism; 5. Mixing tank; 6. Stirring mechanism; 7. First water pump; 10. Feeding pipe; 11. Support leg; 12. Liquid inlet; 13. Baffle plate; 14. Filter plate; 15. Filter screen; 16. Exhaust port; 17. Activated carbon layer; 18. First liquid level sensor; 19. Second liquid level sensor; 21. Rotating shaft; 22. Feeding plate; 31. 32. Electric actuator; 33. Support block; 34. Baffle; 35. Fixing plate; 36. Telescopic guide rod; 47. Dosing box; 48. Dosing port; 49. Support pipe; 40. Discharge port; 41. Piston; 42. Support rod; 43. Float; 44. Dosing pipe; 55. Third liquid level sensor; 56. Fourth liquid level sensor; 57. Drain pipe; 58. Second water pump; 69. Stirring shaft; 60. Stirring motor; 61. Stirring blade. Detailed Implementation

[0010] like Figure 1-3As shown, a wastewater treatment device for electrode foil production includes a vertically arranged sedimentation tank 1. The top of the sedimentation tank 1 is fixed with a vertically arranged exhaust port 16, and an activated carbon layer 17 is provided inside the exhaust port 16. The activated carbon layer 17 can adsorb toxic gases in the gas. An inlet 12 is provided on the upper left side of the sedimentation tank 1, and waste liquid is injected into the sedimentation tank 1 through the inlet 12. Several support legs 11 are provided at the bottom of the sedimentation tank 1 to provide support. The bottom of the sedimentation tank 1 is provided with a vertically arranged feed pipe 10, and the upper end of the feed pipe 10 is provided with a feed mechanism 2 to assist in removing the sediment from the sedimentation tank 1. The feed mechanism 2 includes a horizontally arranged rotating shaft 21. The two ends of the rotating shaft 21 are rotatably mounted on the feed pipe 10 through bearings. Several material-pulling plates 22 are fixed on the rotating shaft 21. A feed motor (not shown in the attached drawing of the instruction manual) is fixed on the outside of the feed pipe 10. The power output shaft of the feed motor is connected to the rotating shaft 21. The feed motor is connected to the power supply and PLC controller through a cable. When the feed motor is started, the feed motor drives the rotating shaft 21 to rotate. The material-pulling plates 22 on the rotating shaft 21 push the sediment and debris in the feed pipe 10 to the lower end of the feed pipe 10. The lower end of the feeding pipe 10 is provided with a feeding switch 3. The feeding switch 3 includes a support block 32 fixed on the right side of the feeding pipe 10. A horizontally arranged slide groove is opened on the support block 32. A baffle 33 is slidably connected in the slide groove. The right end of the baffle 33 extends to the right out of the support block 32, and the left end of the baffle 33 extends to the left into the feeding pipe 10. An electric push rod 31 is fixed on the feeding pipe 10 above the support block 32 and is arranged parallel to the baffle 33. The right end of the electric push rod 31 is fixedly connected to the baffle 33 through a fixing plate 34. Both the upper and lower sides of the electric push rod 31 are provided with telescopic guide rods 35 that play a guiding role. The left end of the telescopic guide rod 35 is fixed on the feeding pipe 10, and the right end of the telescopic guide rod 35 is fixedly connected to the fixing plate 34. The electric actuator 31 is connected to the power supply and PLC controller via a cable. Activating the electric actuator 31 causes the baffle 33 to move, moving the sediment and debris in the discharge pipe 10 downwards, thus facilitating control over the flow of sediment in the discharge pipe 10. A first liquid level sensor 18 is installed on the inner wall of the sedimentation tank 1 below the inlet 12. A second liquid level sensor 19 is installed below the first liquid level sensor 18. Both the first liquid level sensor 18 and the second liquid level sensor 19 are connected to the power supply and PLC controller via cables, facilitating the detection of the waste liquid level in the sedimentation tank 1. A vertically arranged mixing tank 5 is provided on the right side of the sedimentation tank 1, and a first water pump 7 is provided between the mixing tank 5 and the sedimentation tank 1. The inlet of the first water pump 7 is connected to the lower end of the sedimentation tank 1 through a water pipe. The sedimentation tank 1 is provided with a filter screen 15 that serves as a filter. The outlet of the first water pump 7 is connected to the upper end of the mixing tank 5 through a water pipe. The first water pump 7 is connected to the power supply and PLC controller through a cable. When the first water pump 7 is started, the first water pump 7 pumps the filtered water in the sedimentation tank 1 into the mixing tank 5.The mixing tank 5 is equipped with a stirring mechanism 6, which includes a vertically arranged stirring shaft 61. The upper end of the stirring shaft 61 is rotatably mounted on the upper end of the mixing tank 5, and several stirring blades 63 are fixed on the stirring shaft 61. A vertically arranged stirring motor 62 is fixed at the top of the mixing tank 5, and the power output shaft of the stirring motor 62 is connected to the stirring shaft 61. The stirring motor 62 is connected to the power supply and PLC controller through a cable. When the stirring motor 62 is started, the stirring motor 62 drives the stirring blades 63 to rotate through the stirring shaft 61. The stirring blades 63 can stir and mix the liquid mixture in the mixing tank 5, thereby accelerating the mixing efficiency of the liquid. An automatic dosing mechanism 4 is provided on the upper right side of the mixing tank 5. The automatic dosing mechanism 4 includes a horizontally arranged dosing box 41, with a vertically arranged dosing port 42 at the top of the dosing box 41. A vertically arranged support pipe 43 is fixed to the upper inside of the mixing tank 5. The top of the support pipe 43 is sealed, and a discharge port 44 is opened at the upper end of the support pipe 43. A piston 45 is slidably connected inside the support pipe 43, and a vertically arranged support rod 46 is fixed to the bottom end of the piston 45. The support rod 46 is slidably connected to the support pipe 43, and a float ball 47 is fixed to the bottom end of the support rod 46. A dosing pipe 48 is connected to the bottom end of the dosing box 41 and the lower end of the support pipe 43. When the liquid level in the mixing tank 5 is low, the alkaline drug in the dosing box 41... The liquid flows into the support tube 43 through the dosing pipe 48. As the liquid level in the mixing tank 5 rises, the float 47 moves upward under the action of liquid buoyancy and pushes the piston 45 to move upward along the support tube 43. The piston 45 pushes the alkaline liquid in the support tube 43 to flow into the mixing tank 5 through the discharge port 44. At this time, the alkaline liquid in the dosing box 41 flows into the lower end of the support tube 43 through the dosing pipe 48. After the liquid in the mixing tank 5 is discharged, as the liquid level in the mixing tank 5 drops, under the action of gravity of the float 47, support rod 46 and piston 45, the piston 45 moves downward and squeezes the alkaline liquid at the lower end of the support tube 43 into the dosing box 41. This process is repeated to realize the automatic addition of alkaline liquid in the mixing tank 5. A third liquid level sensor 51 is installed at the upper end of the mixing tank 5, and a fourth liquid level sensor 52 is installed at the lower end of the mixing tank 5. A drain pipe 53 is opened at the bottom of the mixing tank 5, and a second water pump 54 is connected to the drain pipe 53. The third liquid level sensor 51 and the fourth liquid level sensor 52 are both connected to the power supply and the PLC controller through cables to facilitate the detection of the liquid level in the mixing tank 5.

[0011] Preferably, the sedimentation tank 1 is provided with a vertically arranged baffle 13 inside, the upper end of the baffle 13 is higher than the liquid inlet 12, the lower end of the baffle 13 extends downward to the lower end of the sedimentation tank 1, and a horizontally arranged filter plate 14 is provided between the right side of the baffle 13 and the sedimentation tank 1, and the filter plate 14 is located at the lower end of the filter screen 15.

[0012] Preferably, after the piston 45 moves down to the lower end of the support tube 43, the piston 45 is lower than the lower end of the dosing tube 48.

[0013] Preferably, the buoyancy of the float 47 is greater than the sum of the weights of the float 47, the support rod 46, the piston 45, and the medicine in the support tube 43, and under the action of the weights of the float 47, the support rod 46, and the piston 45, the medicine in the support tube 43 below the piston 45 can be squeezed into the dosing box 41.

[0014] In use, wastewater from the electrode foil production well inlet 12 flows into the sedimentation tank 1. At this time, the feeding mechanism 2 and the discharge switch 3 in the feeding pipe 10 are not activated, preventing wastewater from flowing out of the feeding pipe 10. When the liquid level in the sedimentation tank 1 rises to the first liquid level sensor 18, the first water pump 7 is activated. The first water pump 7 pumps the water filtered by the filter plate 14 and filter screen 15 in the sedimentation tank 1 into the mixing tank 5. As the liquid level in the mixing tank 5 rises, the float 47 moves upward under the action of liquid buoyancy and pushes the piston 45 upward along the support pipe 43. The piston 45 pushes the alkaline solution in the support pipe 43 to flow into the mixing tank 5 through the discharge port 44. At this time, the alkaline solution in the dosing box 41 flows into the lower end of the support pipe 43 through the dosing pipe 48. After the liquid in the mixing tank 5 is discharged and the liquid level in the sedimentation tank 1 drops to the second liquid level sensor 19, Stop the first water pump 7; when the liquid level in the mixing tank 5 rises to the third liquid level sensor 51, start the stirring motor 62. The stirring motor 62 drives the stirring shaft 61 to rotate, and the stirring shaft 61 drives the stirring blades 63 to mix the liquid and alkaline solution in the mixing tank. Then start the second water pump 54. The second water pump 54 transports the mixed liquid in the mixing tank 5 to the mixing tank 5 through the drain pipe 53. As the liquid level in the mixing tank 5 drops, under the gravity of the float 47, support rod 46 and piston 45, the piston 45 moves down and squeezes the alkaline solution at the lower end of the support pipe 43 into the dosing box 41. This process is repeated to achieve automatic addition of alkaline solution to the mixing tank 5. When it is necessary to clean the sediment in the sedimentation tank 1, start the electric push rod 31 and the feeding motor respectively. The feeding plate 22 pushes the sediment above the feeding pipe 10 out of the feeding pipe 10.

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A wastewater treatment device for electrode foil production, comprising a vertically arranged sedimentation tank, an inlet located on the upper left side of the sedimentation tank, and several supporting legs at the bottom of the sedimentation tank, characterized in that: The sedimentation tank has a vertically arranged discharge pipe at its bottom end, and a discharge mechanism at its upper end to assist in removing sediment from the sedimentation tank. A discharge switch is located at the lower end of the discharge pipe. A first liquid level sensor is located on the inner wall of the sedimentation tank below the inlet, and a second liquid level sensor is located below the first liquid level sensor. A vertically arranged mixing tank is located to the right of the sedimentation tank, and a first water pump is located between the mixing tank and the sedimentation tank. The inlet of the first water pump is connected to the lower end of the sedimentation tank via a water pipe. A filter screen is installed inside the sedimentation tank, and the outlet of the first water pump is connected to the upper end of the mixing tank via a water pipe. A stirring mechanism is installed inside the mixing tank, and an automatic dosing mechanism is located at the upper right end of the mixing tank. A third liquid level sensor is located at the upper inside of the mixing tank, and a fourth liquid level sensor is located at the lower inside of the mixing tank. A drain pipe is located at the bottom of the mixing tank, and a second water pump is connected to the drain pipe.

2. The wastewater treatment device for electrode foil production according to claim 1, characterized in that: The feeding mechanism includes a horizontally arranged rotating shaft, with both ends of the rotating shaft rotatably mounted on the feeding tube via bearings. Several feeding plates are fixed on the rotating shaft, and a feeding motor is fixed on the outside of the feeding tube. The power output shaft of the feeding motor is connected to the rotating shaft for transmission.

3. The wastewater treatment device for electrode foil production according to claim 1, characterized in that: The material feeding switch includes a support block fixed on the right side of the feeding tube. A horizontally set groove is provided on the support block. A baffle is slidably connected in the groove. The right end of the baffle extends out of the support block to the right, and the left end of the baffle extends out of the feeding tube to the left. An electric push rod is fixed on the feeding tube above the support block and is set parallel to the baffle. The right end of the electric push rod is fixedly connected to the baffle through a fixing plate.

4. The wastewater treatment device for electrode foil production according to claim 3, characterized in that: The electric actuator has telescopic guide rods on both the upper and lower sides for guiding. The left end of the telescopic guide rod is fixed to the feed tube, and the right end of the telescopic guide rod is fixedly connected to the fixing plate.

5. A wastewater treatment device for electrode foil production according to claim 1, characterized in that: The sedimentation tank is equipped with a vertically arranged baffle. The upper end of the baffle is higher than the liquid inlet, and the lower end of the baffle extends downward to the lower end of the sedimentation tank. A horizontally arranged filter plate is arranged between the right side of the baffle and the sedimentation tank, and the filter plate is located below the filter screen. A vertically arranged vent is fixed at the top of the sedimentation tank, and an activated carbon layer is arranged inside the vent.

6. A wastewater treatment device for electrode foil production according to claim 1, characterized in that: The stirring mechanism includes a vertically arranged stirring shaft, the upper end of which is rotatably mounted on the upper end of the mixing tank, and several stirring blades are fixed on the stirring shaft. A vertically arranged stirring motor is fixed at the top of the mixing tank, and the power output shaft of the stirring motor is connected to the stirring shaft for transmission.

7. A wastewater treatment device for electrode foil production according to claim 1, characterized in that: The automatic dosing mechanism includes a horizontally arranged dosing box with a vertically arranged dosing port at the top. A vertically arranged support tube is fixed to the upper part of the mixing tank. The top of the support tube is sealed, and a discharge port is opened at the upper end of the support tube. A piston is slidably connected inside the support tube, and a vertically arranged support rod is fixed to the bottom end of the piston. The support rod is slidably connected to the support tube in a sealed manner, and a float is fixed to the bottom end of the support rod. A dosing pipe is connected to the bottom end of the dosing box and the lower end of the support tube.

8. A wastewater treatment device for electrode foil production according to claim 7, characterized in that: After the piston moves down to the lower end of the support tube, the piston is below the lower end of the dosing tube.

9. A wastewater treatment device for electrode foil production according to claim 8, characterized in that: The buoyancy of the float is greater than the sum of the weights of the float, support rod, piston, and the medicine in the support tube. Under the weight of the float, support rod, and piston, the medicine in the support tube below the piston can be squeezed into the dosing box.

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