Electrophoresis tank with waste liquid separation function

Abstract

The utility model relates to the technical field of electrophoresis tank discloses an electrophoresis tank with waste liquid separation function, including electrophoresis tank, the bottom plate is fixedly connected with the bottom of electrophoresis tank, the water pump is fixedly connected with the top of bottom plate, the water pump input is fixedly connected with the water inlet pipe, the water inlet pipe one end is fixedly connected with the filter box, the filter box is provided with the filter assembly inside, the filter box top is fixedly connected with the connecting pipe no.

Description

Technical Field

[0001] This utility model relates to the field of electrophoresis tanks, and in particular to an electrophoresis tank with a waste liquid separation function. Background Technology

[0002] In electrophoretic coating, the electrophoresis tank, as a core piece of equipment, plays a crucial role in forming the coating on the workpiece surface. The workpiece is immersed in the electrophoretic solution within the tank, where a direct current acts on it, causing paint particles to deposit on the workpiece surface to form a uniform coating. However, during this process, waste liquid is generated from impurities introduced by the workpiece, paint decomposition products, and water evaporation. Electrophoretic tanks with waste liquid separation functions have emerged to address this need. Through an integrated separation system, they promptly treat the waste liquid generated during electrophoresis, maintaining the stability and purity of the electrophoretic solution, ensuring coating quality, reducing direct discharge of waste liquid and environmental pollution, and simultaneously achieving resource recycling. This makes them an important piece of equipment in modern electrophoretic coating production lines for improving process stability and environmental friendliness.

[0003] In existing technologies, electrophoresis tanks with waste liquid separation functions typically employ a mechanical structure combining an external filtration unit and a circulation pump. The technical principle is that the circulation pump draws a portion of the electrophoresis solution from the tank to the external filtration device. This device usually uses a fixed filter screen or filter cartridge as the core filtration element, utilizing the pores of the screen to intercept solid impurities and particulate contaminants in the waste liquid. The filtered electrophoresis solution is then returned to the tank through pipes, forming a circulating filtration process. This achieves the separation and removal of impurities from the waste liquid, maintaining the cleanliness of the liquid within the electrophoresis tank.

[0004] However, in existing technologies, the filtration process relies on fixed filter screens or filter elements. As the filtration time increases, the intercepted impurities gradually adhere to the surface of the filter screen, causing blockage. When the filter screen becomes blocked to a certain extent, the machine must be stopped to disassemble the filter screen for manual cleaning or replacement. This process directly interrupts the normal operation of the electrophoresis tank, resulting in a significant decrease in the processing efficiency of the entire coating production line. Therefore, an electrophoresis tank with waste liquid separation function is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an electrophoresis tank with waste liquid separation function, which aims to improve the problem that traditional filtration devices require frequent shutdowns for cleaning due to filter screen clogging, resulting in low processing efficiency and easy damage to the water pump.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An electrophoresis tank with waste liquid separation function includes an electrophoresis tank, a bottom plate fixedly connected to the bottom of the electrophoresis tank, a water pump fixedly connected to the top of the bottom plate, an inlet pipe fixedly connected to the input end of the water pump, a filter box fixedly connected to one end of the inlet pipe, a filter assembly disposed inside the filter box, a connecting pipe one fixedly connected to the top of the filter box, the top end of the connecting pipe one communicating with the inside of the electrophoresis tank, the bottom of the filter box fixedly connected to the top of the bottom plate, an outlet pipe fixedly connected to the output end of the water pump, a filter fixedly connected to the top end of the outlet pipe, a connecting pipe two fixedly connected to the outer wall of the filter, one end of the connecting pipe two located at the bottom of the inner wall of the electrophoresis tank;

[0008] The filter assembly includes multiple filter screens located inside the filter box. A fixing plate is fixedly connected to the inner wall of the filter box, and a rotating component is provided on the outer wall of each filter screen.

[0009] As a further description of the above technical solution:

[0010] Each of the rotating components includes a rotating shaft, one end of which is fixedly connected to one side of the filter screen, and a stirring component is provided inside the electrophoresis tank.

[0011] As a further description of the above technical solution:

[0012] Each of the rotating shafts has a rotating blade fixedly connected to its outer wall, and each of the rotating shafts has a fixed frame rotatably connected to its outer wall. The bottom of the multiple fixed frames is fixedly connected to the bottom of the inner wall of the filter box.

[0013] As a further description of the above technical solution:

[0014] A connecting pipe three is fixedly connected to the outer wall of the outlet pipe, and multiple diversion pipes are fixedly connected to the outer wall of the connecting pipe three. The bottom ends of the multiple diversion pipes extend through the interior of the filter box and are located at the top of the rotating blade.

[0015] As a further description of the above technical solution:

[0016] Each of the filter screens is fixedly connected to a limiting ring on its outer wall, and multiple limiting rings are rotatably connected inside the fixed plate.

[0017] As a further description of the above technical solution:

[0018] The stirring assembly includes multiple stirring blades, which are located on the inner wall of the electrophoresis tank. Multiple motors are fixedly connected to one side of the electrophoresis tank.

[0019] As a further description of the above technical solution:

[0020] Each of the motor output ends is fixedly connected to a second rotating shaft, and one end of each second rotating shaft is rotatably connected to a fixed cylinder. One end of each of the fixed cylinders is fixedly connected to the inner wall of the electrophoresis tank.

[0021] As a further description of the above technical solution:

[0022] Multiple stirring blades are fixedly connected to the outer wall of the second rotating shaft on one side and are inclined relative to the second rotating shaft. Each stirring blade has multiple guide holes inside.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by pressurizing the liquid in the diversion section, the filter screen is driven to rotate by the liquid's own gravity and impact force, thus achieving the function of automatic cleaning of the filter screen. This solves the problem that traditional filtration devices need to be stopped frequently for cleaning due to filter screen clogging, resulting in low processing efficiency and easy damage to the water pump. It enhances the continuity of waste liquid treatment and the stability of equipment operation.

[0025] 2. In this utility model, an inclined stirring blade with a guide hole is provided. When rotating, it generates both macroscopic flow and microscopic disturbance to the electrophoretic liquid, which achieves the effect of fully mixing the electrophoretic liquid. This solves the problem that solid particles such as pigments and resins in the electrophoretic liquid settle or aggregate due to uneven stirring, resulting in poor coating penetration and film thickness uniformity. This improves the quality stability and yield of electrophoretic products. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an electrophoresis tank with waste liquid separation function proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the filter box structure of an electrophoresis tank with waste liquid separation function proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the rotating blade structure of an electrophoresis tank with waste liquid separation function proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the filter screen structure of an electrophoresis tank with waste liquid separation function proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the stirring blade of an electrophoresis tank with waste liquid separation function proposed in this utility model.

[0031] Legend:

[0032] 1. Electrophoresis tank; 2. Connecting pipe one; 3. Filter box; 4. Base plate; 5. Water pump; 6. Inlet pipe; 7. Outlet pipe; 8. Filter; 9. Connecting pipe two; 10. Fixing plate; 11. Filter screen; 12. Fixing frame; 13. Rotating shaft one; 14. Rotating blade; 15. Fixing cylinder; 16. Connecting pipe three; 17. Diverter pipe; 18. Limiting ring; 19. Guide hole; 20. Motor; 21. Rotating shaft two; 22. Stirring blade. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1-4 This utility model provides an embodiment of an electrophoresis tank with waste liquid separation function, comprising an electrophoresis tank 1, a base plate 4 fixedly connected to the bottom of the electrophoresis tank 1, which provides a stable installation foundation for the entire equipment, thereby enhancing the overall stability of the equipment. A water pump 5 is fixedly connected to the top of the base plate 4, which serves as the core power source of the circulation system, providing power for the continuous flow and pressurization of the waste liquid, thereby achieving efficient liquid transportation. A water inlet pipe 6 is fixedly connected to the input end of the water pump 5, which guides the liquid in the filter box 3 to the water pump 5. A filter box 3 is fixedly connected to one end of the water inlet pipe 6, which houses the filter assembly and performs preliminary separation of the waste liquid, achieving solid-liquid separation. The filter assembly is installed inside the filter box 3, and the core function of the filter assembly is to intercept and automatically clean the waste liquid. Larger particulate impurities are removed to prevent them from entering and damaging the subsequent water pump 5. A connecting pipe 2 is fixedly connected to the top of the filter box 3. The connecting pipe 2 serves as a fluid channel between the electrophoresis tank 1 and the filter box 3. The top of the connecting pipe 2 is connected to the inside of the electrophoresis tank 1. The bottom of the filter box 3 is fixedly connected to the top of the base plate 4. A water outlet pipe 7 is fixedly connected to the output end of the water pump 5. The water outlet pipe 7 is used to transport the liquid pressurized by the water pump 5. A filter 8 is fixedly connected to the top of the water outlet pipe 7. The filter 8 is used to perform secondary fine filtration on the liquid that has undergone preliminary filtration, thereby improving the cleanliness of the liquid. A connecting pipe 9 is fixedly connected to the outer wall of the filter 8. The connecting pipe 9 is used to return the purified liquid to the electrophoresis tank 1, thereby forming a complete closed-loop circulation purification system. One end of the connecting pipe 9 is located at the bottom of the inner wall of the electrophoresis tank 1.

[0035] The filtration assembly includes multiple filter screens 11, which are used to physically intercept impurity particles in the liquid and are the core components for achieving the filtration function. The multiple filter screens 11 are located inside the filter box 3, and a fixing plate 10 is fixedly connected to the inner wall of the filter box 3. Each filter screen 11 has a rotating assembly on its outer wall, which drives the filter screen 11 to rotate, achieving self-cleaning using centrifugal force. Each rotating assembly includes a rotating shaft 13, which transmits the rotational power generated by the rotating blades 14 to the filter screen 11. One end of each rotating shaft 13 is fixedly connected to one side of the filter screen 11. An agitation assembly is installed inside the electrophoresis tank 1. Rotating blades 14 are fixedly connected to the outer wall of each rotating shaft 13, and a fixing frame 12 is rotatably connected to the outer wall of each rotating shaft 13. Multiple fixing frames 12 are fixedly connected to the bottom of the assembly. At the bottom of the inner wall of the filter box 3, a connecting pipe 3 16 is fixedly connected to the outer wall of the outlet pipe 7. The connecting pipe 3 16, together with multiple diversion pipes 17, draws out part of the pressurized liquid in the outlet pipe 7, achieving an energy-saving effect by cleverly utilizing the liquid's own energy as a driving force. Multiple diversion pipes 17 are fixedly connected to the outer wall of the connecting pipe 3 16. The diversion pipes 17 are used to evenly spray the drawn liquid onto the rotating blade 14. The bottom ends of the multiple diversion pipes 17 extend through the interior of the filter box 3 and are located at the top of the rotating blade 14. Each filter screen 11 is fixedly connected to the outer wall of a limiting ring 18. Multiple limiting rings 18 are rotatably connected to the interior of the fixing plate 10. The limiting rings 18, together with the fixing plate 10, provide stable support and radial limiting when the filter screen 11 rotates, achieving the effect of ensuring that the filter screen 11 rotates smoothly without shaking.

[0036] Reference Figure 1 and Figure 5The stirring assembly is used to thoroughly stir the electrophoretic solution in the electrophoresis tank 1, preventing pigment and resin precipitation, thus ensuring the uniform distribution of the electrophoretic solution components and consequently ensuring the uniformity of the electrophoretic coating quality of the workpiece. The stirring assembly includes multiple stirring blades 22, which are the core actuators for generating the stirring action. These blades are located on the inner wall of the electrophoresis tank 1. Multiple motors 20 are fixedly connected to one side of the electrophoresis tank 1. These motors 20 serve as independent power sources, providing stable and powerful rotational force to the stirring assembly, achieving efficient drive. Each motor 20 has a fixed shaft 21 at its output end, which transmits the output torque of the motor 20 to the stirring blades 22. A fixed cylinder 15 is rotatably connected to one end of each shaft 21. 5 is used to provide axial and radial support for the rotation of the second rotating shaft 21, achieving the effect of ensuring stable and reliable stirring process. One end of multiple fixed cylinders 15 is fixedly connected to the inner wall of the electrophoresis tank 1, and one side of multiple stirring blades 22 is fixedly connected to the outer wall of the second rotating shaft 21, and is inclined to the second rotating shaft 21. This inclined design allows the stirring blades 22 to generate axial and radial thrust on the liquid at the same time when rotating, causing the electrophoretic liquid in the entire tank to form a three-dimensional circulation flow, achieving the effect of macroscopic rapid mixing. Each stirring blade 22 has multiple guide holes 19 inside. When the stirring blade 22 rotates, the guide holes 19 will form a local high-speed liquid flow jet, enhancing the mixing and dispersion effect in the micro-region, achieving the effect of preventing pigment particle agglomeration and further improving the uniformity of the electrophoretic liquid.

[0037] Working principle: During the waste liquid filtration and separation process, the waste liquid containing impurities inside the electrophoresis tank 1 flows into the filter box 3 through the top connecting pipe 2. Larger particles of impurities in the liquid are intercepted by multiple filter screens 11 inside the filter box 3, completing the initial filtration. The filtered liquid is then sucked in and pressurized by the water pump 5 through the bottom inlet pipe 6, and then conveyed upward through the outlet pipe 7. As the liquid flows through the outlet pipe 7, a portion of the liquid is diverted to the connecting pipe 16 and evenly distributed into multiple distribution pipes 17, spraying out from the end of the distribution pipes 17. The liquid's own gravity and flow impact force drive the rotating blade 14 below to rotate. Since the rotating blade 14 is fixedly connected to the rotating shaft 13, the rotating shaft 13 drives the other end of the blade 14 to rotate. The filter screen 11 rotates synchronously. Inside the fixed plate 10, the filter screen 11 is constrained and supported by the limiting ring 18. The centrifugal force generated by this rotation can remove impurities attached to the surface of the filter screen 11, realizing the self-cleaning function of the filter screen 11. This solves the problems of easy clogging of the filter screen 11 in traditional filtration methods, which require frequent shutdowns for manual cleaning, resulting in low filtration efficiency and damage to the water pump 5 due to clogging and overload. It enhances the continuity of waste liquid treatment and the stability of equipment operation. The liquid after self-cleaning filtration eventually flows into the mainstream of the outlet pipe 7, enters the filter 8 for secondary fine filtration, and finally flows back to the bottom of the inner wall of the electrophoresis tank 1 through the connecting pipe 2 9, forming a closed-loop circulating purification component.

[0038] When performing electrophoresis on the workpiece, multiple motors 20 fixed on the side of the electrophoresis tank 1 are started. The output end of the motor 20 drives multiple stirring blades 22 to rotate in the electrophoresis liquid through the rotating shaft 21. Since the stirring blades 22 and the rotating shaft 21 are installed at an incline, their rotation will generate a strong axial and radial thrust on the electrophoresis liquid, causing the liquid in the entire tank to be fully macroscopically circulated and stirred. At the same time, the multiple guide holes 19 opened on each stirring blade 22 will form local high-speed liquid flow and vortex during the rotation, which will enhance the mixing effect in the micro-region. This combination of macro- and micro-stirring method can ensure that the pigments, resins and other solid particles in the electrophoresis liquid are always in a uniformly suspended and dispersed state. This solves the problem that pigments and resin particles settle or aggregate due to the electrophoresis liquid being left to stand or insufficiently stirred, resulting in different liquid concentrations in different parts of the tank, which affects the penetration and film thickness uniformity of the electrophoretic coating on the workpiece. This enhances the quality stability and yield of the electrophoretic product.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An electrophoresis tank with waste liquid separation function, comprising an electrophoresis tank (1), characterized in that: The bottom of the electrophoresis tank (1) is fixedly connected to a base plate (4), the top of the base plate (4) is fixedly connected to a water pump (5), the input end of the water pump (5) is fixedly connected to a water inlet pipe (6), one end of the water inlet pipe (6) is fixedly connected to a filter box (3), the filter box (3) is equipped with a filter assembly, the top of the filter box (3) is fixedly connected to a connecting pipe (2), the top end of the connecting pipe (2) is connected to the inside of the electrophoresis tank (1), the bottom of the filter box (3) is fixedly connected to the top of the base plate (4), the output end of the water pump (5) is fixedly connected to a water outlet pipe (7), the top end of the water outlet pipe (7) is fixedly connected to a filter (8), the outer wall of the filter (8) is fixedly connected to a connecting pipe (9), one end of the connecting pipe (9) is located at the bottom of the inner wall of the electrophoresis tank (1); The filter assembly includes multiple filter screens (11), which are located inside the filter box (3). A fixing plate (10) is fixedly connected to the inner wall of the filter box (3), and a rotating component is provided on the outer wall of each filter screen (11).

2. The electrophoresis tank with waste liquid separation function according to claim 1, characterized in that: Each of the rotating components includes a rotating shaft (13), one end of which is fixedly connected to one side of the filter screen (11), and a stirring component is provided inside the electrophoresis tank (1).

3. The electrophoresis tank with waste liquid separation function according to claim 2, characterized in that: Each of the rotating shafts (13) is fixedly connected to a rotating blade (14) on its outer wall, and each of the rotating shafts (13) is rotatably connected to a fixing frame (12) on its outer wall. The bottom of the fixing frames (12) is fixedly connected to the bottom of the inner wall of the filter box (3).

4. An electrophoresis tank with waste liquid separation function according to claim 3, characterized in that: The outer wall of the outlet pipe (7) is fixedly connected to a connecting pipe three (16), and the outer wall of the connecting pipe three (16) is fixedly connected to multiple diversion pipes (17). The bottom ends of the multiple diversion pipes (17) extend through to the interior of the filter box (3) and are located at the top of the rotating blade (14).

5. An electrophoresis tank with waste liquid separation function according to claim 4, characterized in that: Each of the filter screens (11) has a limiting ring (18) fixedly connected to its outer wall, and the plurality of the limiting rings (18) are rotatably connected inside the fixed plate (10).

6. An electrophoresis tank with waste liquid separation function according to claim 3, characterized in that: The stirring assembly includes multiple stirring blades (22), which are located on the inner wall of the electrophoresis tank (1). Multiple motors (20) are fixedly connected to one side of the electrophoresis tank (1).

7. An electrophoresis tank with waste liquid separation function according to claim 6, characterized in that: Each of the motors (20) has a fixed shaft (21) at its output end, and a fixed cylinder (15) is rotatably connected to one end of each of the two shafts (21). One end of each of the fixed cylinders (15) is fixedly connected to the inner wall of the electrophoresis tank (1).

8. An electrophoresis tank with waste liquid separation function according to claim 7, characterized in that: Multiple stirring blades (22) are fixedly connected to the outer wall of the second rotating shaft (21) on one side and are inclined to the second rotating shaft (21). Multiple guide holes (19) are provided inside each stirring blade (22).

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