A device for purifying an oil tank

Abstract

The utility model relates to metal processing technical field discloses a kind of oil removal tank purification devices, including oil removal tank, the front side of oil removal tank is provided with purification mechanism, the purification mechanism is used to purify the oil dirt in oil removal tank, the inside of oil removal tank is provided with agitating mechanism, the agitating mechanism is used to agitate to be purified workpiece, the purification mechanism includes purification tank, the rear side of purification tank is fixedly connected in the front side of oil removal tank, the inside bottom of purification tank is fixedly connected with guide plate, the top of purification tank is slidably connected with mounting bracket, the top of mounting bracket is evenly provided with multiple grooves front and back sides, in the utility model, oil dirt containing oil removal liquid is pumped into purification tank by delivery pump, is guided to flow through coarse filter plate, middle filter plate, fine filter plate filtering by guide plate, then is handled by demulsification cavity and vibrating coil, effectively removes the emulsified oil drop of smaller particle size in solution, guarantees the stable cleaning effect of subsequent workpiece.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology, and in particular to an oil removal tank purification device. Background Technology

[0002] In the fields of industrial production and metal processing, degreasing tanks are an indispensable functional device. With the tank body as the main structure, it contains a specific degreasing solution and is mainly used to clean oil stains adhering to the surface of metal workpieces and mechanical parts. By immersing the workpiece in the degreasing tank, the chemical and physical effects of the solution can effectively remove oil stains and impurities from the surface of the workpiece, providing a clean base for subsequent electroplating, spraying and heat treatment processes, thereby improving the processing quality and performance stability of the product, while reducing the pollution of subsequent process equipment by oil stains. To maintain the continuous and efficient operation of degreasing tanks, degreasing tank purification devices have emerged. These devices are auxiliary equipment specifically designed for degreasing tanks. Their core function is to purify the degreasing solution in the tank, which has gradually become contaminated with oil and impurities due to long-term use. Through filtration, separation, and adsorption, the device can remove floating oil, sediment, and emulsified oil droplets from the solution, restoring the concentration and cleanliness of the degreasing solution. This extends the service life of the degreasing solution, reduces the frequency of replacement, and saves production costs. However, existing degreasing tank purification devices, by setting up filters and oil separators, have achieved a certain degree of interception of large particulate impurities and surface floating oil in practical applications, preventing the degreasing solution from becoming ineffective due to rapid contamination. However, relying on a single physical filtration method, the pore size of its internal filter is fixed, making it difficult to effectively remove small emulsified oil droplets in the solution during operation. This results in incomplete purification of the degreasing solution and affects the cleaning effect of subsequent workpieces. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides an oil removal tank purification device, which aims to improve the problem that the existing single filtration is difficult to effectively remove small emulsified oil droplets in the solution, resulting in incomplete purification of the oil removal solution.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an oil removal tank purification device, including an oil removal tank, a purification mechanism is provided on the front side of the oil removal tank, the purification mechanism is used to purify the oil stains in the oil removal tank, and an agitation mechanism is provided inside the oil removal tank, the agitation mechanism is used to agitate the workpiece to be purified. The purification mechanism includes a purification box, the rear of which is fixedly connected to the front of the oil removal box. A guide plate is fixedly connected to the bottom inner side of the purification box. A mounting frame is slidably connected to the top of the purification box. Multiple grooves are provided on the front and rear sides of the top of the mounting frame. Corresponding horizontal plates are slidably connected inside the multiple grooves. Coarse filter plates, medium filter plates, and fine filter plates are fixedly connected to the bottom of the multiple horizontal plates, respectively. A demulsification chamber is connected to the right side of the purification box. A vibration coil is fixedly connected to the outer wall of the demulsification chamber. A conveying assembly is provided on the left side of the purification box. A support assembly is provided on the right side of the oil removal box. An air blowing assembly is provided on the right side of the purification box.

[0005] As a further description of the above technical solution: The agitation mechanism includes a fixed plate, the right side of which is fixedly connected to the left side of the oil removal tank. A motor is fixedly connected to the bottom of the fixed plate, and a drive gear is fixedly connected to the output end of the motor. Two rotating rods are rotatably connected to the left and right sides of the inside of the oil removal tank. The left ends of the two rotating rods pass through the oil removal tank and are fixedly connected to driven gears. The two driven gears are respectively meshed with the front and rear sides of the drive gear. Multiple agitation plates are fixedly connected to the outer walls of the two rotating rods, and multiple lifting plates are fixedly connected to the bottom of the inner side of the oil removal tank.

[0006] As a further description of the above technical solution: The conveying assembly includes a conveying pump, the right side of which is fixedly connected to the left side of the purification box. The rear side of the conveying pump is connected to an oil suction pipe, the rear end of which is connected to the front left end of the oil removal box. The right end of the demulsification chamber is connected to a return pipe, the other end of which is connected to the right side of the oil removal box.

[0007] As a further description of the above technical solution: The support assembly includes a support rod, the left end of which is fixedly connected to the front right side of the oil removal tank, and the right end of which is fixedly connected to a ring. The outer wall of the return pipe is slidably connected to the inner wall of the ring.

[0008] As a further description of the above technical solution: A connecting block is fixedly connected to the top of the fixing plate, and the right side of the connecting block is fixedly connected to the left side of the oil removal tank.

[0009] As a further description of the above technical solution: The front and rear sides of the coarse filter plate, the medium filter plate, and the fine filter plate are all slidably connected to the front and rear sides of the interior of the mounting frame, and the bottom of the coarse filter plate, the medium filter plate, and the fine filter plate are in contact with the top of the guide plate.

[0010] As a further description of the above technical solution: The return pipe extends through the interior of the annulus, and the size of the return pipe is matched to that of the annulus.

[0011] As a further description of the above technical solution: The multiple horizontal plates fit into the interior of the groove, and the horizontal plates match the top dimensions of the purification box.

[0012] As a further description of the above technical solution: Multiple air nozzles are fixedly connected to the rear side of the inside of the oil removal tank, an oil skimmer is fixedly connected to the top right side of the purification tank, and a collection tank is fixedly connected to the right side of the purification tank.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the oil-containing degreasing solution is pumped into the purification tank by a delivery pump. It is then guided by a guide plate through a coarse filter plate, a medium filter plate, and a fine filter plate for filtration. After being processed by a demulsification chamber and a vibration coil, it is finally returned through a return pipe. The support rod and a circular ring stabilize the return pipe to achieve circulation. At the same time, the air nozzle blows the surface oil stains into the purification tank. The oil stains are then scraped into a collection tank by an oil scraper for further processing. This effectively removes small-sized emulsified oil droplets from the solution, improves the degreasing efficiency, and ensures the stability of the cleaning effect on subsequent workpieces.

[0014] 2. In this utility model, the motor is supported by a fixed plate. The motor drives the active gear to rotate, which in turn drives the meshing driven gear to rotate, causing the rotating rod to rotate synchronously. The stirring plate rotates with the rotating rod to push the liquid, and the raised plate changes the flow direction, thus achieving full contact between the degreasing liquid and the workpiece, accelerating the removal of oil stains, and avoiding incomplete local degreasing. Attached Figure Description

[0015] Figure 1 This is a perspective view of an oil removal tank purification device proposed in this utility model; Figure 2 This is a front view of an oil removal tank purification device proposed in this utility model; Figure 3 This is a structural exploded view of an oil removal tank purification device proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the image; Figure 5 This is a cross-sectional view of the structure of an oil removal tank purification device proposed in this utility model.

[0016] Legend: 1. Oil removal tank; 2. Purification mechanism; 201. Purification box; 202. Guide plate; 203. Mounting bracket; 204. Groove; 205. Horizontal plate; 206. Coarse filter plate; 207. Medium filter plate; 208. Fine filter plate; 209. Demulsification chamber; 210. Vibration coil; 211. Conveying assembly; 2111. Conveying pump; 2112. Suction pipe; 2113. Return pipe; 212. Support assembly; 2121. Support rod; 21 22. Ring; 213. Air blowing assembly; 2131. Air blowing nozzle; 2132. Oil skimmer; 2133. Collection box; 213. Air blowing assembly; 2131. Air blowing nozzle; 2132. Oil skimmer; 2133. Collection box; 3. Stirring mechanism; 301. Fixed plate; 302. Motor; 303. Drive gear; 304. Rotating rod; 305. Driven gear; 306. Stirring plate; 307. Lifting plate; 4. Connecting block. Detailed Implementation

[0017] 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.

[0018] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model provides: an oil removal tank purification device, including an oil removal tank 1 for holding the workpiece to be purified and the oil removal liquid. A purification mechanism 2 is provided on the front side of the oil removal tank 1 for purifying the oil stains in the oil removal tank. The purification mechanism 2 is used to purify the oil stains in the oil removal tank and realize the separation of oil stains from the oil removal liquid. An agitation mechanism 3 is provided inside the oil removal tank 1 for agitating the oil removal liquid to make the workpiece fully contact the oil removal liquid. The agitation mechanism 3 is used to agitate the workpiece to be purified and accelerate the removal of oil stains from the surface of the workpiece. The purification mechanism 2 includes a purification box 201, which serves as the main site for oil pollution purification. The rear side of the purification box 201 is fixedly connected to the front side of the oil removal box 1, achieving a stable connection between the purification box 201 and the oil removal box 1. A guide plate 202 is fixedly connected to the bottom inner side of the purification box 201 to guide the oil-containing degreasing liquid to flow along a preset path. A mounting bracket 203 is slidably connected to the top of the purification box 201 to provide installation support for the filter plates and facilitate disassembly. Multiple grooves 204 are provided on the front and rear sides of the top of the mounting bracket 203 for placing horizontal plates 205 to achieve the installation and positioning of the filter plates. Corresponding horizontal plates 205 are slidably connected inside the multiple grooves 204, connecting the filter plates and sliding within the grooves 204 for easy loading and unloading. The bottom of the multiple horizontal plates 205... The purification tank 201 is fixedly connected to a coarse filter plate 206, a medium filter plate 207, and a fine filter plate 208, which respectively intercept impurities and oil stains of different sizes. The coarse filter plate 206 filters larger particles of impurities and blocky oil stains, the medium filter plate 207 filters medium-sized impurities and dispersed oil stain particles, and the fine filter plate 208 removes small impurities and tiny oil stains. The right side of the purification tank 201 is connected to a demulsification chamber 209, which performs demulsification treatment on the filtered deoiled liquid. The outer wall of the demulsification chamber 209 is fixedly connected to a vibration coil 210, which generates high-frequency vibration to destroy the emulsified oil stain structure. The left side of the purification tank 201 is provided with a conveying component 211, which is responsible for the extraction and conveying of the deoiled liquid. The right side of the deoiling tank 1 is provided with a support component 212, which supports and limits the return pipe 2113. The conveying assembly 211 includes a conveying pump 2111, which provides power to extract oil-containing degreasing liquid. The right side of the conveying pump 2111 is fixedly connected to the left side of the purification tank 201, thus connecting and fixing the conveying pump 2111 to the purification tank 201. The rear side of the conveying pump 2111 is connected to an oil suction pipe 2112, which guides the oil-containing degreasing liquid in the degreasing tank 1 into the conveying pump 2111. The rear end of the oil suction pipe 2112 is connected to the front left end of the degreasing tank 1, thus enabling the flow of the oil-containing degreasing liquid from the degreasing tank 1 to the oil suction pipe 2112. The right end of the demulsification chamber 209 is connected to a return pipe 2113, which sends the purified degreasing liquid back to the degreasing tank 1. The other end of the return pipe 2113 is connected to the right side of the degreasing tank 1, thus enabling the return circulation of the purified degreasing liquid. The support assembly 212 includes a support rod 2121, which connects the oil removal tank 1 and the ring 2122 to provide support. The left end of the support rod 2121 is fixedly connected to the front right side of the oil removal tank 1 to fix the support rod 2121 to the oil removal tank 1. The right end of the support rod 2121 is fixedly connected to the ring 2122, which is sleeved on the outside of the return pipe 2113 for limiting. The outer wall of the return pipe 2113 is slidably connected to the inner wall of the ring 2122 to ensure that the return pipe 2113 is stable and can move appropriately. Multiple air nozzles 2131 are fixedly connected to the rear side of the interior of the oil removal tank 1. The air nozzles 2131 are used to blow away the oil stains on the top of the purification tank 201. An oil scraper 2132 is fixedly connected to the top right side of the purification tank 201. The oil scraper 2132 is used to clean the blown oil stains. A collection tank 2133 is fixedly connected to the right side of the purification tank 201. The collection tank 2133 collects and processes the oil stains.

[0019] Specifically, the degreasing tank 1 serves as the core container, providing a degreasing space for the workpiece to be purified and holding the degreasing liquid. The purification mechanism 2 is responsible for purifying the oil stains in the degreasing tank. The purification box 201 is the main place for purification treatment. The guide plate 202 on its inner bottom can guide the oily degreasing liquid to flow along a preset path, ensuring that it passes through each level of filter components in sequence, thereby improving filtration efficiency. The mounting bracket 203 slidably connected to the top of the purification box 201 provides a mounting base for the filter plates. Multiple grooves 204 opened on the front and back sides of its top are slidably connected to the corresponding horizontal plates 205, which facilitates the disassembly, cleaning, and replacement of the coarse filter plate 206, the medium filter plate 207, and the fine filter plate 208, ensuring the stability of the filtration effect. These three filter plates are used to intercept impurities and oil stains of different sizes. The coarse filter plate 206 intercepts larger particles of impurities and blocky oil stains. The medium filter plate 207 filters medium-sized impurities and dispersed oil stain particles. The fine filter plate 208 removes fine impurities and tiny oil stain particles, achieving progressive fine filtration. The demulsification chamber 209 is connected to the right side of the purification box 201. For further processing of the degreasing solution, a vibration coil 210 fixedly connected to its outer wall generates high-frequency vibration when energized, which can break down the emulsified oil structure, causing oil droplets to aggregate and improving the purification level of the degreasing solution. In the conveying assembly 211 on the left side of the purification tank 201, the conveying pump 2111 draws the degreasing solution containing oil from the degreasing tank 1 to the purification tank 201 through the suction pipe 2112. The return pipe 2113 connected to the right end of the demulsification chamber 209 sends the purified degreasing solution back to the degreasing tank 1, forming a circulation. The right side of the degreasing tank 1... In the side support assembly 212, the support rod 2121 and the ring 2122 together provide stable support for the return pipe 2113, preventing it from shaking due to liquid flow and affecting the return flow. The stirring mechanism 3 is used to stir the workpiece to be cleaned. The air nozzle 2131 blows the oil on the surface to the clean box 201, and then the oil is scraped into the collection box 2133 by the oil scraper 2132 for further processing. By driving the flow of the degreasing liquid, the degreasing liquid is made to fully contact the workpiece, accelerate the removal of oil, and improve the degreasing efficiency.

[0020] Reference Figure 2 and Figure 5The agitation mechanism 3 includes a fixed plate 301 for fixing and supporting components such as the motor 302. The right side of the fixed plate 301 is fixedly connected to the left side of the oil removal tank 1, achieving a stable connection between the fixed plate 301 and the oil removal tank 1. The bottom of the fixed plate 301 is fixedly connected to the motor 302, providing a power source for the agitation mechanism 3. The output end of the motor 302 is fixedly connected to a drive gear 303, transmitting the power of the motor 302 to the driven gear 305. Two rotating rods 304 are rotatably connected to the left and right sides of the interior of the oil removal tank 1 for mounting the agitation plate 306 and... The two rotating rods 304 are driven to rotate. The left ends of the two rotating rods 304 pass through the oil removal tank 1 and are fixedly connected to the driven gears 305, which mesh with the driving gears 303 to realize power transmission. The two driven gears 305 are respectively meshed with the front and rear sides of the driving gears 303, so that the driving gears 303 can drive the two rotating rods 304 to rotate at the same time. Multiple stirring plates 306 are fixedly connected to the outer walls of the two rotating rods 304. When rotating, they stir the degreasing liquid to enhance its fluidity. Multiple lifting plates 307 are fixedly connected to the bottom of the inner side of the oil removal tank 1 to change the flow direction of the degreasing liquid and improve the stirring effect. Specifically, the components of the agitation mechanism 3 work together to provide power and a proper agitation effect for the oil removal process. The right side of the fixing plate 301 is fixedly connected to the left side of the oil removal tank 1, providing stable support and a mounting base for the motor 302, ensuring the stability of the motor 302 during operation. The motor 302 is fixed to the bottom of the fixing plate 301, and the drive gear 303 connected to its output end can transmit power to drive other components through gear meshing. Inside the oil removal tank 1, two rotating rods 304 are rotatably connected to the left and right sides. The driven gear 305, which passes through the oil removal tank 1 and is fixed at the left end, is respectively connected to the drive gear. The front and rear sides of 303 mesh, which can transmit the rotational motion of the drive gear 303 to the rotating rod 304, so that the rotating rod 304 can rotate synchronously. The multiple agitator plates 306 fixed on the outer wall of the rotating rod 304 rotate with the rotating rod 304, which can promote the flow of degreasing liquid in the degreasing tank 1, enhance the contact frequency and fullness between the degreasing liquid and the workpiece to be cleaned, and accelerate the removal of oil stains from the workpiece. The multiple lifting plates 307 fixed on the bottom of the inner side of the degreasing tank 1 can change the flow path of the degreasing liquid, avoid the liquid flow being singular, form a more complex liquid flow, further improve the agitation effect, and ensure that all parts of the workpiece can be effectively degreased.

[0021] Reference Figure 2 , Figure 4 and Figure 5A connecting block 4 is fixedly connected to the top of the fixing plate 301 to enhance the stability of the connection between the fixing plate 301 and the oil removal tank 1. The right side of the connecting block 4 is fixedly connected to the left side of the oil removal tank 1 to further reinforce the connection between the fixing plate 301 and the oil removal tank 1. The front and rear sides of the coarse filter plate 206, the medium filter plate 207, and the fine filter plate 208 are all slidably connected to the front and rear sides of the interior of the mounting bracket 203 to facilitate the installation and removal of the filter plates. The bottom of the coarse filter plate 206, the medium filter plate 207, and the fine filter plate 208 is in contact with the top of the guide plate 202 to ensure... The degreasing fluid can be fully filtered by the filter plate. The return pipe 2113 passes through the inside of the ring 2122, so that the ring 2122 can limit the return pipe 2113. The size of the return pipe 2113 matches that of the ring 2122, ensuring that the return pipe 2113 is stable and does not shake. Multiple horizontal plates 205 fit into the inside of the groove 204, enhancing the stability of the horizontal plates 205 in the groove 204. The size of the horizontal plates 205 matches that of the top of the purification box 201, ensuring that the horizontal plates 205 fit the top of the purification box 201 after installation. Specifically, it can enhance the stability of the connection between the fixed plate 301 and the oil removal tank 1, further improve the stability of the motor 302 during operation, and the front and rear sides of the coarse filter plate 206, the medium filter plate 207 and the fine filter plate 208 are all slidably connected to the front and rear sides of the mounting bracket 203, and the bottom is in contact with the top of the guide plate 202. This facilitates the installation, disassembly and replacement of the filter plates, and ensures a reasonable fit between the filter plates and the guide plate 202. It can make the ring 2122 form a more precise limit on the return pipe 2113, prevent the return pipe 2113 from deviating, and at the same time ensure that the return pipe 2113 can stably carry out the return of the degreased liquid, enhance the stability of the horizontal plate 205 in the groove 204, and thus ensure the stability of the coarse filter plate 206, the medium filter plate 207 and the fine filter plate 208 after installation.

[0022] Working Principle: When a large amount of oil contamination is introduced into the degreasing solution in the degreasing tank 1, the purification mechanism 2 begins operation. The conveying pump 2111 of the conveying component 211 draws the oil-containing degreasing solution into the purification tank 201 through the suction pipe 2112. Within the purification tank 201, the oil-containing degreasing solution is guided by the guide plate 202 and flows sequentially through the coarse filter plate 206, medium filter plate 207, and fine filter plate 208 on the mounting frame 203. The coarse filter plate 206 intercepts larger impurities and lumpy oil contaminants; the medium filter plate 207 filters out medium-sized impurities and dispersed oil particles; and the fine filter plate 208 removes fine impurities and tiny oil contaminants, completing physical filtration. The groove 204 of the mounting frame 203 is slidably connected to the horizontal plate 205, facilitating filter plate disassembly and cleaning. To ensure filtration effectiveness, the filtered degreasing liquid enters the demulsification chamber 209. The vibration coil 210 on its outer wall is energized to generate high-frequency vibration, which breaks down the emulsified oil structure, causing oil droplets to accumulate and improving the purification degree. The purified degreasing liquid flows back to the degreasing tank 1 through the return pipe 2113 at the right end of the demulsification chamber 209. The support rod 2121 and the ring 2122 of the support component 212 stably support the return pipe 2113. At the same time, the air nozzle 2131 blows the surface oil to the top of the purification tank 201, and then the oil is scraped into the collection tank 2133 by the oil scraper 2132 for subsequent processing. This avoids shaking from affecting the return flow, allowing the degreasing liquid to participate in the degreasing process again, forming a closed loop cycle for continuous and efficient processing of the workpiece. After the workpiece to be cleaned is placed into the degreasing liquid in the degreasing tank 1, the stirring mechanism 3 is started. The fixed plate 301 fixes and supports the motor 302. The output end of the motor 302 drives the drive gear 303 to rotate. The driven gear 305, which meshes with the front and rear sides of the drive gear 303, rotates accordingly, thereby driving the two rotating rods 304 in the degreasing tank 1 to rotate synchronously. The multiple stirring plates 306 on the outer wall of the rotating rods 304 rotate with them, pushing the degreasing liquid to form a multi-directional flow. At the same time, the lifting plate 307 at the bottom of the inner side changes the direction of liquid flow, so that the degreasing liquid can fully contact the surface of the workpiece, accelerate the removal of oil stains, and avoid incomplete local degreasing.

[0023] 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 oil removal tank purification device, comprising an oil removal tank (1), characterized in that: A purification mechanism (2) is provided on the front side of the degreasing tank (1). The purification mechanism (2) is used to purify the oil stains in the degreasing tank. An agitation mechanism (3) is provided inside the degreasing tank (1). The agitation mechanism (3) is used to agitate the workpiece to be purified. The purification mechanism (2) includes a purification box (201), the rear side of which is fixedly connected to the front side of the oil removal box (1). A guide plate (202) is fixedly connected to the bottom inner side of the purification box (201). A mounting bracket (203) is slidably connected to the top of the purification box (201). Multiple grooves (204) are provided on the front and rear sides of the top of the mounting bracket (203). A corresponding horizontal plate (205) is slidably connected inside each of the multiple grooves (204). (205) has a coarse filter plate (206), a medium filter plate (207) and a fine filter plate (208) fixedly connected to its bottom. The right side of the purification box (201) is connected to a demulsification chamber (209). The outer wall of the demulsification chamber (209) is fixedly connected to a vibration coil (210). The left side of the purification box (201) is provided with a conveying assembly (211). The right side of the oil removal box (1) is provided with a support assembly (212). The right side of the purification box (201) is provided with an air blowing assembly (213).

2. The oil removal tank purification device according to claim 1, characterized in that: The agitation mechanism (3) includes a fixed plate (301), the right side of which is fixedly connected to the left side of the oil removal tank (1), a motor (302) is fixedly connected to the bottom of the fixed plate (301), and a drive gear (303) is fixedly connected to the output end of the motor (302). Two rotating rods (304) are rotatably connected to the left and right sides of the inside of the oil removal tank (1). The left ends of the two rotating rods (304) penetrate the oil removal tank (1) and are fixedly connected to driven gears (305). The two driven gears (305) are respectively meshed with the front and rear sides of the drive gear (303). Multiple agitation plates (306) are fixedly connected to the outer walls of the two rotating rods (304). Multiple lifting plates (307) are fixedly connected to the bottom of the inside of the oil removal tank (1).

3. The oil removal tank purification device according to claim 1, characterized in that: The conveying assembly (211) includes a conveying pump (2111), the right side of which is fixedly connected to the left side of the purification box (201). The rear side of the conveying pump (2111) is connected to an oil suction pipe (2112), the rear end of which is connected to the front left end of the oil removal box (1). The right end of the demulsification chamber (209) is connected to a return pipe (2113), the other end of which is connected to the right side of the oil removal box (1).

4. The oil removal tank purification device according to claim 3, characterized in that: The support assembly (212) includes a support rod (2121), the left end of which is fixedly connected to the front right side of the oil removal tank (1), and the right end of which is fixedly connected to a ring (2122). The outer wall of the return pipe (2113) is slidably connected to the inner wall of the ring (2122).

5. The oil removal tank purification device according to claim 2, characterized in that: The top of the fixing plate (301) is fixedly connected to a connecting block (4), and the right side of the connecting block (4) is fixedly connected to the left side of the oil removal tank (1).

6. The oil removal tank purification device according to claim 1, characterized in that: The front and rear sides of the coarse filter plate (206), the medium filter plate (207) and the fine filter plate (208) are slidably connected to the front and rear sides of the interior of the mounting frame (203), and the bottom of the coarse filter plate (206), the medium filter plate (207) and the fine filter plate (208) are in contact with the top of the guide plate (202).

7. The oil removal tank purification device according to claim 3, characterized in that: The return pipe (2113) penetrates the interior of the ring (2122), and the size of the return pipe (2113) matches that of the ring (2122).

8. The oil removal tank purification device according to claim 1, characterized in that: The multiple horizontal plates (205) fit into the interior of the groove (204), and the horizontal plates (205) match the top dimensions of the purification box (201).

9. The oil removal tank purification device according to claim 1, characterized in that: Multiple air nozzles (2131) are fixedly connected to the rear side of the oil removal tank (1), an oil scraper (2132) is fixedly connected to the top right side of the purification tank (201), and a collection tank (2133) is fixedly connected to the right side of the purification tank (201).

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