Degreasing agent waste liquid treatment device

Abstract

The utility model belongs to the technical field of waste liquid treatment, and particularly relates to a degreasing agent waste liquid treatment device which comprises a base, the device comprises a base, a filter box is fixedly installed on one side of the upper portion of the base, a liquid inlet pipe is fixedly connected to one side of the center of the top of the filter box, air cylinders are arranged on the two sides of the liquid inlet pipe and fixedly installed on the two sides of the top of the filter box, a partition plate is fixedly installed in the filter box, and a fixing support is arranged in the filter box; the fixing support is slidably mounted in the water tank, an oil-water separation plate is fixedly mounted at the bottom of the fixing support and is obliquely arranged, an oil scraping plate is arranged on the upper portion of the oil-water separation plate, sliding grooves are formed in the two sides in the lower end of the fixing support, and the two ends of the oil scraping plate are slidably arranged in the sliding grooves. Cylinder piston rods are fixedly connected to the upper portions of the two sides of the fixing support respectively. The oil-water separation efficiency and effect are greatly improved through the combination of the inclined oil-water separation plate and the oil scraping plate and the automatic driving of the air cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of waste liquid treatment, in particular to a device for treating degreasing agent waste liquid. Background Technique

[0002] Degreasing agent waste liquid is the waste liquid generated by chemical substances used to remove grease from objects during the industrial process. The degreasing agent waste liquid treatment device can effectively remove pollutants such as grease, suspended solids, organic matter, and heavy metals in the waste liquid, so that the treated water quality meets the national discharge standards or can be reused.

[0003] The degreasing agent waste liquid treatment device is a comprehensive treatment system integrating various treatment methods such as physical, chemical, and biological methods. It can effectively remove pollutants such as grease, suspended solids, organic matter, and heavy metals in the waste liquid, so that the treated water quality meets the national discharge standards or can be reused.

[0004] For the existing waste liquid treatment device, when treating degreasing agent waste liquid, due to the complex components such as high-concentration grease, emulsion, and possible heavy metal ions in the degreasing agent waste liquid, the oil content can be more thoroughly separated from the waste liquid, reducing the treatment efficiency of the waste liquid; therefore, a device for treating degreasing agent waste liquid is proposed in view of the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the existing technology, for the problem that in the existing waste liquid treatment device, when treating degreasing agent waste liquid, due to the complex components such as high-concentration grease, emulsion, and possible heavy metal ions in the degreasing agent waste liquid, the oil content can be more thoroughly separated from the waste liquid, reducing the treatment efficiency of the waste liquid, the utility model proposes a device for treating degreasing agent waste liquid.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A degreasing agent waste liquid treatment device of the present utility model includes a base; on one side of the upper part of the base, a filtration tank is fixedly installed. On one side of the center of the top of the filtration tank, a liquid inlet pipe is fixedly connected. On both sides of the liquid inlet pipe, cylinders are fixedly installed on both sides of the top of the filtration tank. Inside the filtration tank, a partition plate is fixedly installed. The partition plate divides the filtration tank into an oil tank and a water tank, and there is an opening between the upper part of the partition plate and the top plate of the filtration tank. Inside the filtration tank, a fixed support is provided. The fixed support is slidably installed inside the water tank. At the bottom of the fixed support, an oil-water separation plate is fixedly installed. The oil-water separation plate is inclined, and an oil scraping plate is provided on the upper part. On both sides of the lower end of the fixed support, chutes are opened. Both ends of the oil scraping plate are slidably arranged inside the chutes. The piston rods of the cylinders are respectively fixedly connected to the upper parts of both sides of the fixed support. On one side of the filtration tank, a treatment tank is fixedly installed on the base. A water pump is fixedly installed on the base between the treatment tank and the filtration tank. The water inlet end of the water pump is fixedly connected to a water suction pipe. The other end of the water suction pipe is fixedly connected to the bottom of the filtration tank and is communicated with the water tank. The water outlet end of the water pump is fixedly connected to a connecting pipe. The other end of the connecting pipe is fixedly connected to one side of the lower end of the treatment tank. On the top of the treatment tank, a motor is fixedly installed. Inside the treatment tank, a stirring shaft is provided. The upper end of the stirring shaft is rotatably installed inside the treatment tank. On one side of the treatment tank, a storage tank is fixedly connected to the upper part of the connecting pipe. Above the connection between the storage tank and the connecting pipe, a control valve is provided and is fixedly connected to the rotating shaft of the motor. At the bottom of the treatment tank, a waste discharge pipe is fixedly installed. On one side of the lower end of the waste discharge pipe, a discharge port is opened. By combining the inclined oil-water separation plate with the oil scraping plate and the automatic drive of the cylinder, the efficiency and effect of oil-water separation are greatly improved.

[0007] Preferably, on one side of the lower end of the filtration tank, an oil discharge pipe is fixedly connected. The oil discharge pipe is communicated with the oil tank and is internally provided with an oil discharge valve. By providing an oil discharge pipe at the lower end of the filtration tank and communicating it with the oil tank, and cooperating with the use of the oil discharge valve, the separated oil can be conveniently controlled and discharged.

[0008] Preferably, mounting holes are opened on both sides of the fixed support. Inside the mounting holes, lead screws are rotatably installed. At both upper ends of the oil scraping plate, sliding rods are fixedly installed. On the sliding rods, sliding blocks are slidably installed. The other ends of the sliding blocks are slidably arranged inside the mounting holes, and a threaded hole is opened on one side. The sliding blocks are slidably installed on the lead screws. The same ends of the lead screws penetrate through the fixed support and are fixedly installed with gears. Between the gears, a toothed plate is fixedly installed on the inner wall of the filtration tank. The teeth on the gears mesh with the tooth grooves on the toothed plate. By providing a lead screw and gear transmission mechanism on both sides of the fixed support and cooperating with the sliding rods and sliding blocks on the oil scraping plate, the automatic oil scraping function of the oil scraping plate is realized.

[0009] Preferably, a plurality of stirring rods are fixedly installed in parallel on both sides of the stirring shaft, and scrapers are fixedly installed at the other ends of the stirring rods. By providing the stirring rods and the scrapers, the waste liquid can be fully stirred and mixed in the treatment tank. At the same time, the design of the scraper can scrape the residues on the inner wall of the treatment tank to prevent scaling and blockage.

[0010] Preferably, the lower end of the stirring shaft extends into the waste discharge pipe, and a discharge screw is welded thereon. A piston is arranged below the stirring shaft and slidably installed in the waste discharge pipe. An inclined surface is provided at the top end of the piston, and a spring is arranged at the bottom of the piston and slidably installed at the inner bottom of the waste discharge pipe. By providing that the lower end of the stirring shaft extends into the waste discharge pipe and is welded with a discharge screw, and cooperating with the slidably installed piston and spring, the automatic discharge function of the waste residue is realized.

[0011] Preferably, a filter water pipe is fixedly installed on one side of the top of the treatment tank. One end of the filter water pipe extends into the treatment tank, and a plurality of filter holes are provided at the bottom. By providing a filter water pipe installed on the top of the treatment tank and providing a plurality of filter holes at the bottom, the treated waste liquid can be discharged from the treatment tank after filtration.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. When the present utility model is used to treat degreasing agent waste liquid by using a treatment device, the degreasing agent waste liquid is injected into the filtration tank through the liquid inlet pipe. The waste liquid falls onto the oil-water separation plate for oil-water separation. The water liquid passes through the oil-water separation plate and falls to the inner bottom of the filtration tank. The water pump is started, and the waste liquid in the water tank is extracted through the water suction pipe and then pumped into the treatment tank through the connecting pipe. At the same time, the control valve is opened to put the water treatment agent in the storage tank into the connecting pipe to be mixed with the waste liquid. The mixed liquid reacts in the treatment tank. When the oil liquid on the oil-water separation plate accumulates to a certain extent, the air cylinder is started to pull the fixed bracket to rise. At the same time, the gear drives the lead screw to rotate under the action of the toothed plate. The lead screw drives the slider to move. At the same time, the slider drives the oil scraping plate to slide through the slide rod, and the oil liquid on the upper part of the oil-water separation plate is gathered towards one side of the partition plate. When the fixed bracket moves to the upper end of the partition plate, the oil scraping plate pushes the oil liquid to one side of the upper end of the partition plate and then falls into the oil tank. Through the above structural design, the function of oil-water separation is realized, and the problem that in the existing waste liquid treatment device, when treating degreasing agent waste liquid, due to the complex components such as high-concentration grease, emulsion and possible heavy metal ions in the degreasing agent waste liquid, the oil can be more thoroughly separated from the waste liquid, reducing the waste liquid treatment efficiency is solved, and the waste liquid treatment efficiency is improved. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 It is a schematic structural diagram of one side of the waste liquid treatment device;

[0016] Figure 2 It is a schematic structural diagram of the other side of the waste liquid treatment device;

[0017] Figure 3 It is a schematic structural diagram of the oil removal device;

[0018] Figure 4 It is a schematic structural diagram of the treatment device;

[0019] Figure 5 It is a schematic structural diagram of the scraper drive mechanism.

[0020] In the figure: 1. Base; 2. Filter box; 3. Liquid inlet pipe; 4. Cylinder; 5. Treatment tank; 6. Partition board; 7. Fixed bracket; 8. Oil-water separation board; 9. Oil scraping board; 10. Slide bar; 11. Lead screw; 12. Slide block; 13. Gear; 14. Rack; 15. Oil discharge pipe; 16. Oil discharge valve; 17. Water suction pipe; 18. Water pump; 19. Connecting pipe; 20. Storage tank; 21. Control valve; 22. Motor; 23. Filter water pipe; 24. Stirring shaft; 25. Stirring rod; 26. Scraper; 27. Discharge screw; 28. Waste discharge pipe; 29. Piston; 30. Spring. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] Please refer to Figures 1-5As shown in the figure, a device for treating degreasing agent waste liquid includes a base 1; on one side of the upper part of the base 1, a filtration tank 2 is fixedly installed. On one side of the center of the top of the filtration tank 2, a liquid inlet pipe 3 is fixedly connected. On both sides of the liquid inlet pipe 3, cylinders 4 are arranged and fixedly installed on both sides of the top of the filtration tank 2. Inside the filtration tank 2, a partition plate 6 is fixedly installed. The partition plate 6 divides the filtration tank 2 into an oil tank and a water tank, and there is an opening between the upper part of the partition plate 6 and the top plate of the filtration tank 2. Inside the filtration tank 2, a fixed support 7 is arranged. The fixed support 7 is slidably installed inside the water tank. At the bottom of the fixed support 7, an oil-water separation plate 8 is fixedly installed. The oil-water separation plate 8 is inclined, and an oil scraping plate 9 is arranged on the upper part. On both sides of the lower end inside the fixed support 7, chutes are opened. Both ends of the oil scraping plate 9 are slidably arranged inside the chutes. The piston rods of the cylinders 4 are respectively fixedly connected to the upper parts of both sides of the fixed support 7. On one side of the filtration tank 2, a treatment tank 5 is fixedly installed on the base 1. Between the treatment tank 5 and the filtration tank 2, a water pump 18 is fixedly installed on the base 1. The water inlet end of the water pump 18 is fixedly connected to a water suction pipe 17. The other end of the water suction pipe 17 is fixedly connected to the bottom of the filtration tank 2 and is communicated with the water tank. The water outlet end of the water pump 18 is fixedly connected to a connecting pipe 19. The other end of the connecting pipe 19 is fixedly connected to one side of the lower end of the treatment tank 5. On the top of the treatment tank 5, a motor 22 is fixedly installed. Inside the treatment tank 5, a stirring shaft 24 is arranged. The upper end of the stirring shaft 24 is rotatably installed inside the treatment tank 5. On one side of the treatment tank 5, a storage tank 20 is fixedly connected to the upper part of the connecting pipe 19. Above the connection part of the storage tank 20 and the connecting pipe 19, a control valve 21 is arranged and is fixedly connected to the rotating shaft of the motor 22. At the bottom of the treatment tank 5, a waste discharge pipe 28 is fixedly installed. On one side of the lower end of the waste discharge pipe 28, a discharge port is opened. During operation, when using the treatment device to treat the degreasing agent waste liquid, the degreasing agent waste liquid is injected into the filtration tank 2 through the liquid inlet pipe 3. After the waste liquid enters the filtration tank 2, it falls onto the oil-water separation plate 8 for oil-water separation. The separated waste liquid falls into the lower water tank. At the same time, the water pump 18 is started to extract the waste liquid in the water tank through the water suction pipe 17, and then it is pumped into the treatment tank 5 through the connecting pipe 19. At the same time, the control valve 21 is opened to allow the water treatment agent in the storage tank 20 to enter the treatment tank 5 after being mixed with the water flow in the connecting pipe 19. The motor 22 is started to drive the stirring shaft 24 to rotate, so that the waste liquid and the water treatment agent are fully and quickly mixed. The harmful substances and particulate matters in the waste liquid are flocculated with the agent to form flocs, and then sink into the waste discharge pipe 28 for sedimentation. When the oil liquid accumulates on the oil-water separation plate 8 to a certain extent, the cylinder 4 is started to lift the fixed support 7 to the top of the partition plate 6. At the same time, the oil scraping plate 9 slides from the upper end to the lower end of the oil-water separation plate 8, scraping off the accumulated oil liquid on its upper part and pushing it into the oil tank for collection.

[0023] One side of the lower end of the filter box 2 is fixedly connected with an oil discharge pipe 15, the oil discharge pipe 15 is communicated with the fuel tank, and an oil discharge valve 16 is arranged inside; during operation, when using the treatment device to treat the degreasing agent waste liquid, when the oil liquid in the filter box 2 accumulates to a certain amount, the oil discharge valve 16 is opened, and the oil liquid in the fuel tank is discharged through the oil discharge pipe 15.

[0024] Installation holes are formed on both sides of the fixed support 7, and lead screws 11 are rotatably installed in the installation holes. Both ends of the upper part of the oil scraping plate 9 are fixedly installed with sliding rods 10. Sliding blocks 12 are slidably installed on the sliding rods 10. The other ends of the sliding blocks 12 are slidably arranged in the installation holes, and threaded holes are formed on one side. The sliding blocks 12 are slidably installed on the lead screws 11. The same ends of the lead screws 11 penetrate through the fixed support 7 and are fixedly installed with gears 13. A rack 14 is arranged between the gears 13 and fixedly installed on the inner wall of the filter box 2. The teeth on the gears 13 are meshed with the tooth grooves on the rack 14; during operation, when using the treatment device to treat the degreasing agent waste liquid, the air cylinder 4 pulls the fixed support 7 to rise, and at the same time drives the gear 13 to rise. The gear 13 drives the lead screw 11 to rotate under the action of the rack 14. The lead screw 11 drives the sliding block 12 to slide in the installation hole. At the same time, the sliding block 12 drives the oil scraping plate 9 to slide in the chute through the sliding rod 10, and scrapes the oil liquid accumulated on the upper part of the oil-water separation plate 8, and collects it to one side of the partition plate 6. When the lower end of the oil-water separation plate 8 moves to the upper end of the partition plate 6, it slides along the oil-water separation plate 8 to the other side fuel tank of the partition plate 6 for collection, and then the air cylinder 4 lowers the fixed support 7 to the initial position, and at the same time the oil scraping plate 9 returns to the upper end of the oil-water separation plate 8.

[0025] A plurality of stirring rods 25 are fixedly installed in parallel on both sides of the stirring shaft 24, and scraping plates 26 are fixedly installed at the other ends of the stirring rods 25; during operation, when using the treatment device to treat the degreasing agent waste liquid, the stirring shaft 24 rotates to drive the stirring rods 25 and the scraping plates 26 to rotate at the same time, mixes the waste liquid mixed with the water treatment agent, and enables it to react fully. At the same time, the scraping plate 26 can clean the impurities on the inner wall of the treatment tank 5.

[0026] The lower end of the stirring shaft 24 extends into the waste discharge pipe 28, and a discharging screw 27 is welded thereon. A piston 29 is arranged below the stirring shaft 24 and slidably installed in the waste discharge pipe 28. An inclined surface is formed at the top end of the piston 29. A spring 30 is arranged at the bottom of the piston 29 and slidably installed at the bottom of the waste discharge pipe 28; during operation, when using the treatment device to treat the degreasing agent waste liquid, the stirring shaft 24 rotates to drive the discharging screw 27 to rotate, conveys and extrudes the sediment deposited in the waste discharge pipe 28. Under the action of pressure, the sediment pushes the piston 29 to descend, and at the same time compresses the spring 30. The piston 29 descends to expose the discharge port, and the sediment is automatically discharged through the discharge port.

[0027] A filter water pipe 23 is fixedly installed on one side of the top of the treatment tank 5. One end of the filter water pipe 23 extends into the treatment tank 5, and a plurality of filter holes are opened at the bottom. During operation, when the treatment device is used to treat the degreasing agent waste liquid, the waste liquid is continuously treated in the treatment tank 5, causing the liquid level in the tank to rise and overflow the filter water pipe 23. The filter water pipe 23 filters the suspended matter generated during the waste liquid treatment process, and the treated liquid is discharged from the treatment tank 5 through the filter water pipe 23 for recycling or further treatment.

[0028] Working principle: When using the treatment device to treat the degreasing agent waste liquid, the degreasing agent waste liquid is injected into the filtration tank 2 through the liquid inlet pipe 3. After the waste liquid enters the filtration tank 2, it falls onto the oil-water separation plate 8 for oil-water separation. The separated waste liquid falls into the lower water tank. At the same time, the water pump 18 is started to extract the waste liquid in the water tank through the water suction pipe 17, and then pumped into the treatment tank 5 through the connecting pipe 19. At the same time, the control valve 21 is opened to allow the water treatment agent in the storage tank 20 to enter the treatment tank 5 after being mixed with the water flow in the connecting pipe 19. The motor 22 is started to drive the stirring shaft 24 to rotate, so that the waste liquid and the water treatment agent are fully and quickly mixed. The harmful substances and particulate matters in the waste liquid are flocculated with the agent to form flocs, and then sink into the waste discharge pipe 28 for sedimentation. When the oil liquid accumulates on the oil-water separation plate 8 to a certain extent, the air cylinder 4 is started to pull the fixed bracket 7 to rise, and at the same time drive the gear 13 to rise. The gear 13 drives the lead screw 11 to rotate under the action of the toothed plate 14. The lead screw 11 drives the slider 12 to slide in the mounting hole. At the same time, the slider 12 drives the oil scraping plate 9 to slide in the chute through the sliding rod 10 to scrape the oil liquid accumulated on the upper part of the oil-water separation plate 8 and collect it towards one side of the partition plate 6. When the lower end of the oil-water separation plate 8 moves to the upper end of the partition plate 6, it slides along the oil-water separation plate 8 to the other side of the partition plate 6 into the fuel tank for collection. Then, the air cylinder 4 lowers the fixed bracket 7 to the initial position, and at the same time the oil scraping plate 9 returns to the upper end of the oil-water separation plate 8.

[0029] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0030] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all such changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A degreasing agent waste liquid treatment device, characterized in that: The invention comprises a base (1); a filter box (2) is fixedly mounted on one side of the upper part of the base (1); a liquid inlet pipe (3) is fixedly connected to one side of the center of the top of the filter box (2); cylinders (4) are arranged on both sides of the liquid inlet pipe (3) and are fixedly mounted on both sides of the top of the filter box (2); a partition (6) is fixedly mounted inside the filter box (2); the partition (6) separates the filter box (2) into an oil tank and a water tank; an opening is arranged between the upper part of the partition (6) and the top plate of the filter box (2); and a liquid inlet pipe (3) is arranged inside the filter box (2). A fixed bracket (7), the fixed bracket (7) is slidably mounted inside the water tank, an oil-water separation plate (8) is fixedly mounted on the bottom of the fixed bracket (7), the oil-water separation plate (8) is tilted, and an oil scraper (9) is arranged on the top, both sides of the lower end of the fixed bracket (7) are provided with slide grooves, both ends of the oil scraper (9) are slidably arranged inside the slide grooves, the piston rod of the cylinder (4) is respectively fixedly connected to the upper parts of both sides of the fixed bracket (7), and a processing tank (5) is fixedly mounted on one side of the filter box (2). On the base (1), a water pump (18) is arranged between the treatment tank (5) and the filter box (2) and is fixedly mounted on the base (1); the water inlet end of the water pump (18) is fixedly connected to a water pumping pipe (17); the other end of the water pumping pipe (17) is fixedly connected to the bottom of the filter box (2) and is in communication with the water tank; the water outlet end of the water pump (18) is fixedly connected to a connecting pipe (19); the other end of the connecting pipe (19) is fixedly connected to one side of the lower end of the treatment tank (5); and a motor (22) is fixedly mounted on the top of the treatment tank (5). ), a stirring shaft (24) is arranged inside the processing tank (5), and the upper end of the stirring shaft (24) is rotatably mounted in the processing tank (5); a storage tank (20) is arranged on one side of the processing tank (5) and is fixedly connected to the upper part of the connecting pipe (19); a control valve (21) is arranged above the connection between the storage tank (20) and the connecting pipe (19), and is fixedly connected to the rotating shaft of the motor (22); a waste discharge pipe (28) is fixedly mounted at the bottom of the processing tank (5), and a discharge port is opened on one side of the lower end of the waste discharge pipe (28).

2. The degreasing agent waste liquid treatment device according to claim 1 is characterized in that: An oil drain pipe (15) is fixedly connected to one side of the lower end of the filter box (2); the oil drain pipe (15) is communicated with the oil tank and has an oil drain valve (16) disposed therein.

3. The degreasing agent waste liquid treatment device according to claim 1 is characterized in that: Both sides of the fixed bracket (7) are provided with mounting holes, and a screw (11) is rotatably mounted in the mounting holes. Both ends of the upper part of the oil scraper (9) are fixedly mounted with sliding rods (10), and a slider (12) is slidably mounted on the sliding rod (10). The other end of the slider (12) is slidably arranged in the mounting hole, and a threaded hole is arranged on one side. The slider (12) is slidably mounted on the screw (11). The same end of the screw (11) passes through the fixed bracket (7) and is fixedly mounted with a gear (13). A tooth plate (14) is arranged between the gears (13) and is fixedly mounted on the inner wall of the filter box (2). The teeth on the gear (13) and the tooth grooves on the tooth plate (14) are meshed with each other.

4. The degreasing agent waste liquid treatment device according to claim 1 is characterized in that: A plurality of stirring rods (25) are fixedly mounted in parallel on both sides of the stirring shaft (24), and a scraper (26) is fixedly mounted on the other end of each stirring rod (25).

5. The degreasing agent waste liquid treatment device according to claim 1 is characterized in that: The lower end of the stirring shaft (24) extends into the waste discharge pipe (28) and is welded with a discharge screw (27). A piston (29) is provided below the stirring shaft (24) and is slidably installed in the waste discharge pipe (28). An inclined surface is provided at the top of the piston (29). A spring (30) is provided at the bottom of the piston (29) and is slidably installed in the bottom of the waste discharge pipe (28).

6. The degreasing agent waste liquid treatment device according to claim 1, characterized in that: A water filter pipe (23) is fixedly mounted on one side of the top of the treatment tank (5); one end of the water filter pipe (23) extends into the interior of the treatment tank (5), and a plurality of filter holes are provided at the bottom.

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