A harmful smoke deodorization and purification device for plastic product injection molding processing

Abstract

The application relates to the field of environmental protection, and particularly relates to a harmful smoke deodorization and purification device for plastic product injection molding processing, the inner side of a purification bin is fixedly connected with two concentration cones, one end of the concentration cone is fixedly connected with a control box, one side of the control box is fixedly connected with a smoke suction structure, the other end of the concentration cone is fixedly connected with a smoke exhaust pipe, the outer side of the smoke exhaust pipe is fixedly connected with a mounting ring, the outer side of the mounting ring is rotatably connected with a rotating shaft, and the outer side of the rotating shaft is fixedly connected with a cutting row, a pure mechanical gas-liquid solution purification structure is adopted, the contact efficiency of toxic smoke and purification liquid is greatly improved, and the waste gas purification effect is obviously improved; a cavity is provided with a separated alternating operation mechanism, the whole machine does not need to be stopped during maintenance and cleaning, smoke continuous treatment is guaranteed, the equipment operates by relying on a mechanical structure, the consumption of consumables is low, the maintenance frequency is low, the comprehensive production and operation cost is effectively reduced, the operation is stable and reliable, and the device is suitable for the continuous production demand of an injection molding workshop.

Description

Technical Field

[0001] This invention relates to the field of environmental protection technology, specifically to a device for removing and purifying harmful fumes during the injection molding process of plastic products. Background Technology

[0002] In the injection molding process of plastic products, the process of heating, melting and plasticizing raw materials will continuously generate process fumes containing odors and toxic components. These are common sources of organic waste gas pollution in industrial production. At present, there are many types of injection molding fume purification equipment on the market. Most of them adopt conventional purification structures such as adsorption, spraying and filtration. The overall structural design is relatively traditional, and the overall cost of the equipment and the daily operation and maintenance investment are high, resulting in a generally high comprehensive operating cost.

[0003] Existing equipment requires shutdown and power disconnection for cleaning accumulated liquid, maintenance, and replacement, making it impossible to maintain continuous purification operation. The injection molding production line cannot be shut down simultaneously, and unpurified toxic fumes can only be directly discharged, causing odor diffusion and environmental pollution in the workshop, which seriously restricts the continuity and environmental stability of injection molding production. Therefore, this invention provides a harmful fume deodorization and purification device for injection molding of plastic products. Summary of the Invention

[0004] The purpose of this invention is to provide a device for removing and purifying harmful fumes during the injection molding process of plastic products, so as to solve the problems mentioned in the background art.

[0005] The technical solution of this invention is: a odor removal and purification device for harmful fumes in plastic product injection molding, comprising a purification chamber, two concentrating cones fixedly connected to the inner side of the purification chamber, a control box fixedly connected to one end of each concentrating cone, a smoke extraction structure fixedly connected to one side of the control box, an exhaust pipe fixedly connected to the other end of each concentrating cone, an installation ring fixedly connected to the outer side of the exhaust pipe, a rotating shaft rotatably connected to the outer side of the installation ring, a cutting bar fixedly connected to the outer side of the rotating shaft, a push-rotating plate fixedly connected to the outer side of the cutting bar, a smoke distribution box fixedly connected to the bottom of the exhaust pipe, a guide base plate fixedly connected to the bottom of the smoke distribution box, and two sides of the smoke distribution box... A side baffle is fixedly connected. A partition plate is fixedly connected to the bottom of the cigarette box. Two sets of exhaust ports are opened at the bottom of the cigarette box. A sealing plate is slidably engaged with the inside of the control box. A connecting strip is fixedly connected to one side of the sealing plate. The connecting strip is slidably engaged inside the control box. A push-pull plate is fixedly connected to one side of the connecting strip. A control cylinder is fixedly connected to the top of the control box. The output end of the control cylinder is fixedly connected to the push-pull plate. A connecting top plate is fixedly connected to one side of the push-pull plate. An inner insertion shaft is rotatably connected to the inner side of the connecting top plate. A rotating roller is fixedly connected to one side of the inner insertion shaft. A rotating ring is rotatably connected to the outer side of the rotating roller. An inner sliding roller is fixedly connected to the outer side of the purification chamber, and inner sliding rings are rotatably connected to both ends of the inner sliding roller. A guide shaft is rotatably connected to the inner side of the purification chamber, and a concentrating plate is fixedly connected to the inner side of the purification chamber. A guide plate is fixedly connected to the outer side of the guide shaft, and a guide strip is fixedly connected to one end of the guide shaft. A sliding groove is opened at the bottom of the guide strip, and the inner sliding ring is slidably engaged in the sliding groove. In use: gas is drawn in through the smoking structure, and the gas is introduced through the concentrating cone, introduced into the smoke distribution box through the smoke exhaust pipe, and discharged into the liquid inside the purification chamber from the exhaust port at the bottom of the smoke distribution box. It is discharged through the side baffle and the guide bottom plate. The bubbles float upward while reacting with the liquid, and are pushed and rotated. The contact plate pushes the rotating plate upwards, while the cutting plate shears the bubbles and mixes them as it rotates, extending the contact time and area between the gas and liquid. This allows sulfides, organic odors, and toxic small molecules to fully dissolve, be adsorbed, and neutralized. When the solution is relatively saturated, the electric cylinder is activated, pushing the push-pull plate and pulling the sealing plate, closing one concentrator and opening the other, allowing the gas to be discharged from another exhaust pipe. At the same time, the push-pull plate moves the connecting top plate, causing the rotating roller to move the inner sliding roller, which in turn rotates the guide strip, changing the direction of the top of the guide plate. This directs the sprayed water to one side through the guide plate, facilitating subsequent liquid purification.

[0006] Preferably, a partition plate is fixedly connected inside the purification chamber, a liquid-collecting inclined plate is fixedly connected to the inner side of the partition plate, a transfer chamber is fixedly connected to one side of the purification chamber, two drainage trough plates are slidably engaged on the inner side of the transfer chamber, a drainage hole that fits with the drainage trough plate is opened on the outer side of the purification chamber, a pressing plate is fixedly connected to the top of the drainage trough plate, a liquid discharge push cylinder is fixedly connected to the top of the pressing plate, the liquid discharge push cylinder is fixedly connected to the outer side of the purification chamber, the drainage hole is located at the top of the liquid-collecting inclined plate, the liquid-collecting inclined plate is located between the transfer chambers, an overflow pipe is fixedly connected to one side of the purification chamber, a mixing chamber is fixedly connected to the bottom of the purification chamber, a filter plate is slidably engaged between the purification chamber and the mixing chamber, the overflow pipe is located at the top of the filter plate, and the top of the purification chamber is fixedly connected to... The system includes a smoke exhaust structure. A water pump is installed inside the mixing chamber, and a water guide pipe is fixedly connected to the output end of the water pump. A spray nozzle is fixedly connected to the inside of the purification chamber, and the water guide pipe is connected to the spray nozzle. In use: When the solution needs to be replaced, the outer side of the purification chamber is opened by the drain push cylinder, the liquid is drained and then closed, allowing the liquid to transfer through the transfer chamber and enter the bottom of the liquid storage inclined plate and the top of the filter plate for filtration. The liquid then enters the interior of the mixing chamber, and the medicine is injected at the same time. The liquid is then pumped through the water pump, causing the spray nozzle to spray. The generated liquid is guided by the concentration plate and guide plate into the emptied chamber. The gas is dissolved and neutralized at the bottom, then undergoes secondary adsorption through the spray nozzle, and finally is discharged through the smoke exhaust structure. An overflow pipe is installed to prevent the liquid level from becoming too high, allowing the liquid to be discharged directly to the top of the filter plate.

[0007] This invention provides an improved device for removing and purifying harmful fumes during the injection molding process of plastic products. Compared with the prior art, it has the following improvements and advantages:

[0008] Firstly, the present invention describes a harmful fume deodorization and purification device for injection molding of plastic products. Gas is drawn in through a fume extraction structure, introduced through a concentrator cone, and then introduced into a distribution box via an exhaust pipe. From the exhaust port at the bottom of the distribution box, the gas is discharged into the liquid inside the purification chamber. It is then discharged through a side baffle and a guide plate. Bubbles react with the liquid and float upwards, contacting a rotating push plate and causing it to rotate upwards. Simultaneously, a cutting plate shears the bubbles and mixes them as it rotates, extending the contact time and area between the gas and liquid. This allows sulfides, organic odors, and toxic small molecules to fully dissolve, adsorb, and neutralize. When the solution is relatively saturated, a control cylinder is activated, pushing a push-pull plate and pulling a sealing plate, closing one concentrator cone and opening the other. Gas is then discharged through another exhaust pipe. Simultaneously, the push-pull plate moves the connecting top plate, causing the rotating roller to move the inner sliding roller, rotating the guide strip and changing the direction of the top of the guide plate. This directs the sprayed water to one side of the guide plate, facilitating subsequent liquid purification.

[0009] Secondly, the harmful fume deodorization and purification device for injection molding of plastic products described in this invention, when the solution needs to be replaced, opens the outer side of the purification chamber by draining the liquid push cylinder, drains the liquid and closes it, allowing the liquid to transfer through the transfer chamber, enter the bottom of the liquid storage inclined plate and the top of the filter plate for filtration, and enter the interior of the mixing chamber. At the same time, the chemical solution is injected, and the liquid is sprayed by the water pump. The generated liquid is guided by the concentration plate and the guide plate and enters the emptied chamber. The gas is dissolved and neutralized at the bottom, then adsorbed by the secondary spraying, and finally discharged through the exhaust structure. The overflow pipe can prevent the liquid level from being too high, allowing the liquid to be discharged directly to the top of the filter plate.

[0010] In summary, the harmful fume deodorization and purification device for injection molding of plastic products described in this invention adopts a purely mechanical gas-liquid fusion purification structure, which significantly improves the contact efficiency between toxic fumes and purification liquid, resulting in a significant improvement in waste gas purification effect. The cavity is equipped with a partitioned alternating operation mechanism, which eliminates the need for machine shutdown during maintenance and cleaning, ensuring continuous fume treatment. The equipment operates based on a mechanical structure, resulting in low consumable consumption and low maintenance frequency, effectively reducing the overall production and maintenance costs. It is stable and reliable in operation and suitable for the continuous production needs of injection molding workshops. Attached Figure Description

[0011] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the purification chamber structure of the present invention;

[0014] Figure 3 This is a schematic diagram of the guide plate structure of the present invention;

[0015] Figure 4 This is a schematic diagram of the cutting row structure of the present invention;

[0016] Figure 5 This is a schematic diagram of the control electric cylinder structure of the present invention;

[0017] Figure 6 This is a schematic diagram of the guide bar structure of the present invention;

[0018] Figure 7 This is a schematic diagram of the mixing chamber structure of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Purification chamber; 2. Mixed liquor chamber; 3. Smoke exhaust structure; 4. Water pump; 5. Water guide pipe; 6. Spray exhaust; 7. Centralized plate; 8. Guide plate; 9. Smoke extraction structure; 10. Centralized cone; 11. Smoke exhaust pipe; 12. Mounting ring; 13. Rotating shaft; 14. Cutting plate; 15. Push-rotating plate; 16. Smoke distribution box; 17. Side baffle; 18. Partition plate; 19. Guide base plate; 20. Control box; 21. Sealing plate ; 22. Connecting strip; 23. Push-pull plate; 24. Connecting top plate; 25. Control electric cylinder; 26. Guide shaft; 27. Guide strip; 28. Inner insert shaft; 29. ​​Rotating roller; 30. Rotating ring; 31. Inner sliding roller; 32. Inner sliding ring; 33. Drainage push cylinder; 34. Filter plate; 35. Liquid storage inclined plate; 36. Divider plate; 37. Overflow pipe; 38. Transfer chamber; 39. Drainage trough plate; 40. Pressing plate. Detailed Implementation

[0021] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This invention provides an improved device for removing and purifying harmful fumes during the injection molding process of plastic products. The technical solution of this invention is as follows:

[0023] like Figures 1-7As shown, a odor removal and purification device for harmful fumes in plastic product injection molding includes a purification chamber 1. Two concentrating cones 10 are fixedly connected to the inner side of the purification chamber 1. A control box 20 is fixedly connected to one end of each concentrating cone 10. A smoke extraction structure 9 is fixedly connected to one side of the control box 20. An exhaust pipe 11 is fixedly connected to the other end of each concentrating cone 10. A mounting ring 12 is fixedly connected to the outer side of the exhaust pipe 11. A rotating shaft 13 is rotatably connected to the outer side of the mounting ring 12. A cutting bar 14 is fixedly connected to the outer side of the rotating shaft 13. A push-rotating plate 15 is fixedly connected to the outer side of the cutting bar 14. A smoke distribution box 16 is fixedly connected to the bottom of the exhaust pipe 11. A guide plate 19 is fixedly connected to the bottom of the smoke distribution box 16. Side baffles 17 are fixedly connected to both sides of the smoke distribution box 16. A partition plate 18 is fixedly connected to the bottom of the cigarette dispenser 16. Two sets of exhaust ports are provided at the bottom of the cigarette dispenser 16. A sealing plate 21 is slidably engaged with the inside of the control box 20. A connecting strip 22 is fixedly connected to one side of the sealing plate 21 and is slidably engaged inside the control box 20. A push-pull plate 23 is fixedly connected to one side of the connecting strip 22. A control cylinder 25 is fixedly connected to the top of the control box 20. The output end of the control cylinder 25 is fixedly connected to the push-pull plate 23. A connecting top plate 24 is fixedly connected to one side of the push-pull plate 23. An inner insertion shaft 28 is rotatably connected to the inside of the connecting top plate 24. A rotating roller 29 is fixedly connected to one side of the inner insertion shaft 28. A rotating ring 30 is rotatably connected to the outside of the rotating roller 29. An inner... The inner sliding roller 31 has inner sliding rings 32 rotatably connected to both ends. A guide shaft 26 is rotatably connected to the inner side of the purification chamber 1. A concentrating plate 7 is fixedly connected to the inner side of the purification chamber 1. A guide plate 8 is fixedly connected to the outer side of the guide shaft 26. A guide strip 27 is fixedly connected to one end of the guide shaft 26. A sliding groove is provided at the bottom of the guide strip 27, and the inner sliding ring 32 is slidably engaged in the sliding groove. During use: gas is drawn in through the smoking structure 9, introduced through the concentrating cone 10, and introduced into the smoke distribution box 16 through the exhaust pipe 11. The gas is then discharged into the liquid inside the purification chamber 1 through the exhaust port at the bottom of the smoke distribution box 16. It is then discharged through the side baffle 17 and the guide bottom plate 19. Bubbles react with the liquid and float upwards, contacting the push plate 15 and pushing it. The rotating plate 15 rotates upwards, while the cutting plate 14 shears the bubbles and mixes them as it rotates, extending the contact time and area between the gas and liquid. This allows sulfides, organic odors, and toxic small molecules to fully dissolve, adsorb, and neutralize. When the solution is relatively saturated, the electric cylinder 25 is activated, pushing the push-pull plate 23 and pulling the sealing plate 21, causing one concentrator 10 to close and the other to open, allowing the gas to be discharged from another exhaust pipe 11. At the same time, the push-pull plate 23 pulls the connecting top plate 24 to move, causing the rotating roller 29 to pull the inner sliding roller 31 to move, which in turn rotates the guide strip 27, changing the top of the guide plate 8 so that the sprayed water is guided to one side through the guide plate 8, in conjunction with the subsequent liquid purification.

[0024] Furthermore, a partition plate 36 is fixedly connected inside the purification chamber 1, and a liquid storage inclined plate 35 is fixedly connected to the inner side of the partition plate 36. A transfer chamber 38 is fixedly connected to one side of the purification chamber 1. Two drainage trough plates 39 are slidably engaged on the inner side of the transfer chamber 38. A drainage hole that fits with the drainage trough plate 39 is opened on the outer side of the purification chamber 1. A pressing plate 40 is fixedly connected to the top of the drainage trough plate 39, and a liquid discharge push cylinder 33 is fixedly connected to the top of the pressing plate 40. The liquid discharge push cylinder 33 is fixedly connected to the outer side of the purification chamber 1. The drainage hole is located at the top of the liquid storage inclined plate 35, which is located between the transfer chambers 38. An overflow pipe 37 is fixedly connected to one side of the purification chamber 1. A mixing chamber 2 is fixedly connected to the bottom of the purification chamber 1. A filter plate 34 is slidably engaged between the purification chamber 1 and the mixing chamber 2. The overflow pipe 37 is located at the top of the filter plate 34. The top of the purification chamber 1 is fixedly connected to... The system is equipped with a smoke exhaust structure 3. A water pump 4 is installed inside the mixing chamber 2, and a water guide pipe 5 is fixedly connected to the output end of the water pump 4. A spray drain 6 is fixedly connected to the inside of the purification chamber 1, and the water guide pipe 5 is connected to the spray drain 6. In use: When the solution needs to be replaced, the outside of the purification chamber 1 is opened by the liquid discharge push cylinder 33, the liquid is discharged and then closed, so that the liquid is transferred through the transfer chamber 38 and enters the bottom of the liquid storage inclined plate 35 and the top of the filter plate 34 for filtration. Then it enters the interior of the mixing chamber 2, and the medicine is injected at the same time. The liquid is sprayed by the spray drain 6 through the water pump 4. The generated liquid is guided by the concentration plate 7 and the guide plate 8 and enters the emptied chamber. The gas is dissolved and neutralized at the bottom, and then adsorbed by the secondary spraying. Finally, it is discharged through the smoke exhaust structure 3. The overflow pipe 37 can prevent the liquid level from being too high, so that the liquid can be discharged directly to the top of the filter plate 34.

[0025] Working principle: During use: Gas is drawn in through the smoke extraction structure 9, introduced through the concentrator 10, and then introduced into the distribution box 16 through the exhaust pipe 11. It is then discharged from the exhaust port at the bottom of the distribution box 16 into the liquid inside the purification chamber 1. It is then discharged through the side baffle 17 and the guide plate 19. As the bubbles react with the liquid, they float upwards and come into contact with the rotating push plate 15, causing it to rotate upwards. Simultaneously, the cutting plate 14 shears the bubbles and mixes them as it rotates, extending the contact time and area between the gas and liquid. This allows sulfides, organic odors, and toxic small molecules to fully dissolve, be adsorbed, and neutralized. When the solution is relatively saturated, the electric control cylinder 25 is activated, pushing the push-pull plate 23 and pulling the sealing plate 21, closing one concentrator 10 and opening the other, allowing gas to be discharged from the other exhaust pipe 11. Simultaneously, the push-pull... Plate 23 pulls the connecting top plate 24 to move, causing the rotating roller 29 to pull the inner sliding roller 31 to move, pulling the guide strip 27 to rotate, causing the top of the guide plate 8 to change direction, so that the sprayed water is guided to one side through the guide plate 8, in conjunction with the subsequent liquid purification. When the solution needs to be replaced, the outside of the purification chamber 1 is opened by the drain push cylinder 33, the liquid is drained and then closed, so that the liquid is transferred through the transfer chamber 38 and enters the bottom of the storage inclined plate 35 and the top of the filter plate 34 for filtration, and enters the interior of the mixing chamber 2. At the same time, the medicine is injected, so that the liquid is sprayed by the water pump 4 and the spray outlet 6. The generated liquid is guided by the concentration plate 7 and the guide plate 8 and enters the emptied chamber. The gas is dissolved and neutralized at the bottom, and then through the secondary adsorption of the spray, and finally discharged through the exhaust structure 3. The overflow pipe 37 can prevent the liquid level from being too high, so that the liquid can be directly discharged to the top of the filter plate 34.

[0026] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for removing odors and purifying harmful fumes from plastic injection molding processes, comprising a purification chamber (1), characterized in that: Two concentrators (10) are fixedly connected to the inner side of the purification chamber (1). A control box (20) is fixedly connected to one end of the concentrator (10). A smoke-smoking structure (9) is fixedly connected to one side of the control box (20). An exhaust pipe (11) is fixedly connected to the other end of the concentrator (10). An installation ring (12) is fixedly connected to the outer side of the exhaust pipe (11). A rotating shaft (13) is rotatably connected to the outer side of the installation ring (12). A cutting bar (14) is fixedly connected to the outer side of the rotating shaft (13). A pusher plate (15) is fixedly connected to the outer side of the cutting bar (14).

2. The odor removal and purification device for harmful fumes in plastic product injection molding as described in claim 1, characterized in that: The bottom of the exhaust pipe (11) is fixedly connected to a cigarette box (16), the bottom of the cigarette box (16) is fixedly connected to a guide base plate (19), the two sides of the cigarette box (16) are fixedly connected to side baffles (17), the bottom of the cigarette box (16) is fixedly connected to a partition plate (18), and the bottom of the cigarette box (16) is provided with two sets of exhaust ports.

3. The odor removal and purification device for harmful fumes in plastic product injection molding according to claim 2, characterized in that: A sealing plate (21) is slidably engaged with the inside of the control box (20). A connecting strip (22) is fixedly connected to one side of the sealing plate (21). The connecting strip (22) is slidably engaged with the inside of the control box (20). A push-pull plate (23) is fixedly connected to one side of the connecting strip (22). A control electric cylinder (25) is fixedly connected to the top of the control box (20). The output end of the control electric cylinder (25) is fixedly connected to the push-pull plate (23). A connecting top plate (24) is fixedly connected to one side of the push-pull plate (23).

4. The odor removal and purification device for harmful fumes in plastic product injection molding according to claim 3, characterized in that: An inner insert shaft (28) is rotatably connected to the inner side of the connecting top plate (24). A rotating roller (29) is fixedly connected to one side of the inner insert shaft (28). A rotating ring (30) is rotatably connected to the outer side of the rotating roller (29). An inner sliding roller (31) is fixedly connected to the outer side of the rotating ring (30). Inner sliding rings (32) are rotatably connected to both ends of the inner sliding roller (31).

5. The odor removal and purification device for harmful fumes in plastic product injection molding as described in claim 4, characterized in that: The inner side of the purification chamber (1) is rotatably connected to a guide shaft (26), the inner side of the purification chamber (1) is fixedly connected to a central plate (7), the outer side of the guide shaft (26) is fixedly connected to a guide plate (8), one end of the guide shaft (26) is fixedly connected to a guide strip (27), the bottom of the guide strip (27) is provided with a sliding groove, and the inner slip ring (32) is slidably engaged in the sliding groove.

6. The odor removal and purification device for harmful fumes in plastic product injection molding as described in claim 5, characterized in that: The purification chamber (1) is fixedly connected to a partition plate (36), and a liquid storage inclined plate (35) is fixedly connected to the inner side of the partition plate (36). A transfer chamber (38) is fixedly connected to one side of the purification chamber (1). Two drainage trough plates (39) are slidably engaged on the inner side of the transfer chamber (38). A drainage hole that fits the drainage trough plate (39) is opened on the outer side of the purification chamber (1). A pressing plate (40) is fixedly connected to the top of the drainage trough plate (39). A liquid discharge push cylinder (33) is fixedly connected to the top of the pressing plate (40). The liquid discharge push cylinder (33) is fixedly connected to the outer side of the purification chamber (1). The drainage hole is located at the top of the liquid storage inclined plate (35). The liquid storage inclined plate (35) is located between the transfer chambers (38). An overflow pipe (37) is fixedly connected to one side of the purification chamber (1).

7. The odor removal and purification device for harmful fumes in plastic product injection molding as described in claim 6, characterized in that: The bottom of the purification chamber (1) is fixedly connected to the mixing chamber (2), and a filter plate (34) is slidably connected between the purification chamber (1) and the mixing chamber (2). The overflow pipe (37) is located at the top of the filter plate (34).

8. The odor removal and purification device for harmful fumes in plastic product injection molding according to claim 7, characterized in that: The top of the purification chamber (1) is fixedly connected to a smoke exhaust structure (3), the inside of the mixing chamber (2) is equipped with a water pump (4), the output end of the water pump (4) is fixedly connected to a water guide pipe (5), the inside of the purification chamber (1) is fixedly connected to a spray drain (6), and the water guide pipe (5) is connected to the spray drain (6).

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