A regenerative hydrocarbon fuel injection cleaner processing device

Abstract

The present application belongs to the technical field of cleaning agent, and particularly relates to a processing device for regenerated hydrocarbon fuel injection cleaning agent, which comprises a processing main body, a misting air float type impurity separation mechanism and an impurity filtering mechanism, the misting air float type impurity separation mechanism is arranged on the processing main body, the impurity filtering mechanism is arranged on the processing main body, and a temperature control assembly is arranged on the misting air float type impurity separation mechanism; the misting air float type impurity separation mechanism comprises a gas source storage assembly, an oxidative degradation assembly and an air flow circulation assembly, and the gas source storage assembly is arranged on the misting air float type impurity separation mechanism; the processing device for regenerated hydrocarbon fuel injection cleaning agent can remove stubborn organic matter which is difficult to be treated by conventional methods through the cooperation of nitrogen micro-bubble adsorption, hydrogen peroxide oxidative degradation and ultrasonic cavitation effect, and the comprehensive impurity removal rate is improved.

Description

Technical Field

[0001] This invention belongs to the field of cleaning agent technology, specifically referring to a processing device for a recycled hydrocarbon fuel injection cleaning agent. Background Technology

[0002] In the energy and environmental protection field, recycled hydrocarbon fuels, as a promising alternative energy source, have attracted much attention for their efficient and clean utilization. Injection cleaning agents play a crucial role in the use of recycled hydrocarbon fuels, effectively removing pollutants such as carbon deposits and gum from the fuel system, ensuring its normal operation, improving combustion efficiency, and reducing exhaust emissions.

[0003] Cleaning agents are chemical agents used to remove dirt and impurities and improve the surface properties of materials. During the processing of recycled hydrocarbon fuel injection cleaning agents, impurities and undissolved particles are inevitably generated due to the complexity of the raw materials and the influence of reaction conditions. These impurities and particles not only reduce the purity of the cleaning agent and affect its cleaning effect, but may also cause secondary pollution to the fuel system.

[0004] Currently, existing impurity filtration devices have certain limitations in handling impurities in recycled hydrocarbon fuel injection cleaners. In particular, traditional filtration methods struggle to effectively separate and remove some stubborn organic compounds. These stubborn organic compounds often have complex molecular structures and strong adsorption properties, easily adhering to the surface of the filter media, leading to decreased filtration efficiency, shortened filtration cycles, increased production costs and maintenance difficulties, and seriously affecting the quality and production efficiency of recycled hydrocarbon fuel injection cleaners. Summary of the Invention

[0005] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides a processing device for a recycled hydrocarbon fuel injection cleaner.

[0006] The technical solution adopted by this invention is as follows: This invention provides a processing device for a renewable hydrocarbon fuel injection cleaner, including a processing body, and further including an atomizing air flotation impurity separation mechanism and an impurity filtration mechanism. The atomizing air flotation impurity separation mechanism is disposed on the processing body, the impurity filtration mechanism is disposed on the processing body, and a temperature control component is disposed on the atomizing air flotation impurity separation mechanism. The atomizing air flotation impurity separation mechanism includes a gas source storage component, an oxidation degradation component, and an airflow circulation component. The gas source storage component is disposed on the atomizing air flotation impurity separation mechanism, the oxidation degradation component is disposed on the atomizing air flotation impurity separation mechanism, and the airflow circulation component is disposed on the atomizing air flotation impurity separation mechanism.

[0007] Furthermore, the processing body includes a support frame, an equipment cavity is mounted on the support frame, a first filter cavity is mounted inside the equipment cavity, a telescopic electric cylinder is mounted on the inner wall of the equipment cavity, the output end of the telescopic electric cylinder is connected to a sealing cover, and a transparent observation window is mounted on the front side of the equipment cavity.

[0008] Furthermore, the gas source storage assembly includes a nitrogen storage tank, which is installed on the side wall of the bracket. One end of the first output pipe is installed through the output end of the nitrogen storage tank, and a bubble plate is installed through the other end of the first output pipe. A first electronic valve is installed on the end of the first output pipe near the bubble plate, and an ultrasonic generator is installed on the inner side wall of the first filter chamber.

[0009] Furthermore, the oxidative degradation component includes a housing, which is mounted on the side wall of a bracket and positioned above a nitrogen storage tank. A hydrogen peroxide storage tank is fixedly sleeved onto the upper end of the housing, and the lower end of the hydrogen peroxide storage tank is connected to one end of a second output pipe. The other end of the second output pipe is connected to the side wall of a first output pipe. An ultrasonic atomizing plate is installed on the inner side wall of the second output pipe, and a second electronic valve is installed on the second output pipe.

[0010] Furthermore, the airflow circulation assembly includes a circulating air pump, which is installed on the outer wall of the equipment cavity. The output end of the circulating air pump passes through one end of a return pipe, and the other end of the return pipe passes through and is connected to the input end of a nitrogen storage tank. The inlet end of the circulating air pump passes through and is connected to one end of a bellows, and the other end of the bellows passes through and is connected to an air extraction port. The air extraction port is located at the lower end of the sealing cover, and a third electronic valve is installed on the bellows near the air extraction port.

[0011] Furthermore, the impurity filtration mechanism includes an impurity filtration component and an anti-backflow component, wherein the impurity filtration component is disposed in the first filtration chamber and the anti-backflow component is disposed in the first output pipe.

[0012] Furthermore, the impurity filtration assembly includes a water pump, which is installed on the inner wall of the first filtration chamber. The pump's inlet end is filled with a water pumping pipe, and the pump's outlet end is connected to one end of a water delivery pipe. The other end of the water delivery pipe is connected to an air bubble plate. The lower end of the water delivery pipe is sleeved onto a second filtration chamber. Filter holes are opened on the side wall of the second filtration chamber, and a filter bag is provided on the inner wall of the second filtration chamber. An outlet is opened on the side wall of the water delivery pipe, and the outlet is located inside the second filtration chamber. The water pumping pipe is located above the water delivery pipe.

[0013] Furthermore, the anti-backflow component includes a baffle block, which is fixedly installed on the inner wall of the first output pipe. A limiting rod is installed on the inner wall of the first output pipe, and a spring is fixedly connected to the upper part of the limiting rod. A blocking ball is fixedly connected to the upper end of the spring. A blocking opening is opened on the baffle block, and the center of gravity of the blocking ball is located at the upper end of the baffle block.

[0014] Furthermore, the temperature control assembly includes a temperature control cavity, which is sleeved on the outer wall of the first output tube, a heating element is installed on the inner wall of the temperature control cavity, and coolant is provided inside the temperature control cavity.

[0015] Furthermore, a drain pipe is installed at the lower end of the side wall of the first filter chamber, and a fourth valve is installed on the drain pipe.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows: The present invention provides a processing device for recycled hydrocarbon fuel injection cleaning agent, which achieves the following beneficial effects: (1) The atomized air flotation impurity separation mechanism can remove stubborn organic matter that is difficult to treat by conventional methods through the synergy of nitrogen microbubble adsorption, hydrogen peroxide oxidation degradation and ultrasonic cavitation effect, thus improving the overall impurity removal rate.

[0017] (2) The atomized air flotation impurity separation mechanism is set up so that the ultrasonic high-frequency vibration inhibits the merging of nitrogen bubbles and forms micron-sized bubbles with uniform particle size. Compared with the traditional aeration method, the bubble specific surface area is increased and the impurity adsorption efficiency is improved.

[0018] (3) The temperature control chamber heats the first output tube to 40~50°C, which increases the decomposition rate of hydrogen peroxide, increases the free radical yield, and improves the oxidative degradation efficiency of hydrocarbon polymers.

[0019] (4) The second filtration chamber uses a combination of filter bag and filter hole to intercept impurities and extend the service life of the cleaning agent.

[0020] (5) After flattening, the surface flatness error of the document is small, which significantly reduces the shadows and reflections caused by wrinkles during scanning, and improves the recognition accuracy of the information acquisition instrument.

[0021] (6) The sealing ball structure prevents the cleaning agent from flowing back from the first output pipe, avoids cross-contamination between hydrogen peroxide and nitrogen circuit, and reduces the risk of equipment corrosion. Attached Figure Description

[0022] Figure 1 This is a front view of a regenerated hydrocarbon fuel injection cleaning agent processing device proposed in this invention; Figure 2 This is a schematic diagram of a regenerated hydrocarbon fuel injection cleaning agent processing device proposed in this invention; Figure 3This is a schematic diagram of an atomized air flotation impurity separation mechanism. Figure 4 This is a schematic diagram of the impurity filtration component. Figure 5 for Figure 3 Enlarged view of part A in the middle; Figure 6 for Figure 3 Enlarged view of part B in the middle section; Figure 7 for Figure 2 Enlarged view of part C in the middle.

[0023] The components include: 1. Processing body; 2. Atomizing flotation impurity separation mechanism; 3. Impurity filtration mechanism; 4. Temperature control component; 5. Support frame; 6. Equipment cavity; 7. First filtration cavity; 8. Telescopic electric cylinder; 9. Sealing cover; 10. Transparent observation window; 11. Gas source storage component; 12. Oxidation degradation component; 13. Airflow circulation component; 14. Nitrogen storage tank; 15. First output pipe; 16. Bubble plate; 17. First electronic valve; 18. Ultrasonic generator; 19. Housing; 20. Hydrogen peroxide storage tank; 21. Second output pipe; 22. Ultrasonic mist... 23. Electrode plate, 24. Second electronic valve, 25. Circulating air pump, 26. Return pipe, 27. Bellows, 28. Third electronic valve, 29. Air extraction port, 30. Impurity filter assembly, 31. Anti-backflow assembly, 32. Second filter chamber, 33. Filter hole, 34. Filter bag, 35. Water pump, 36. Water extraction pipe, 37. Water delivery pipe, 38. Water outlet, 39. Stop block, 40. Spring, 41. Limiting rod, 42. Sealing ball, 43. Sealing port, 44. Temperature control chamber, 45. Heating element, 46. Coolant, 47. Drain pipe, 48. Fourth valve.

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] like Figures 1-7 As shown, the present invention proposes a processing device for a recycled hydrocarbon fuel injection cleaner, including a processing body 1, an atomizing flotation impurity separation mechanism 2 and an impurity filtration mechanism 3. The atomizing flotation impurity separation mechanism 2 is disposed on the processing body 1, the impurity filtration mechanism 3 is disposed on the processing body 1, and a temperature control component 4 is disposed on the atomizing flotation impurity separation mechanism 2.

[0028] The processing body 1 includes a support 5, an equipment cavity 6, a first filter cavity 7, a telescopic electric cylinder 8, a sealing cover 9, and a transparent observation window 10. The equipment cavity 6 is installed on the support 5, the first filter cavity 7 is installed inside the equipment cavity 6, the telescopic electric cylinder 8 is installed on the inner wall of the equipment cavity 6, the output end of the telescopic electric cylinder 8 is connected to the sealing cover 9, and the transparent observation window 10 is installed on the front side of the equipment cavity 6.

[0029] The atomizing air flotation impurity separation mechanism 2 includes an air source storage component 11, an oxidation degradation component 12, and an airflow circulation component 13. The air source storage component 11 is installed on the atomizing air flotation impurity separation mechanism 2, the oxidation degradation component 12 is installed on the atomizing air flotation impurity separation mechanism 2, and the airflow circulation component 13 is installed on the atomizing air flotation impurity separation mechanism 2.

[0030] The gas source storage assembly 11 includes a nitrogen storage tank 14, a first output pipe 15, a bubble plate 16, a first electronic valve 17, and an ultrasonic generator 18. The nitrogen storage tank 14 is installed on the side wall of the bracket 5. One end of the first output pipe 15 is installed through the output end of the nitrogen storage tank 14, and the bubble plate 16 is installed through the other end of the first output pipe 15. The first electronic valve 17 is installed on the end of the first output pipe 15 near the bubble plate 16. The ultrasonic generator 18 is installed on the inner side wall of the first filter chamber 7.

[0031] The oxidation degradation component 12 includes a housing 19, a hydrogen peroxide storage tank 20, a second output pipe 21, an ultrasonic atomizing plate 22, and a second electronic valve 23. The housing 19 is mounted on the side wall of the bracket 5 and is located above the nitrogen storage tank 14. The upper end of the housing 19 is fixedly sleeved with the hydrogen peroxide storage tank 20. The lower end of the hydrogen peroxide storage tank 20 is connected to one end of the second output pipe 21. The other end of the second output pipe 21 is connected to the side wall of the first output pipe 15. The ultrasonic atomizing plate 22 is installed on the inner side wall of the second output pipe 21, and the second electronic valve 23 is installed on the second output pipe 21.

[0032] The airflow circulation assembly 13 includes a circulating air pump 24, a return pipe 25, a bellows 26, a third electronic valve 27, and an exhaust port 28. The circulating air pump 24 is installed on the outer wall of the equipment cavity 6. The output end of the circulating air pump 24 passes through one end of the return pipe 25, and the other end of the return pipe 25 passes through the input end of the nitrogen storage tank 14. The intake end of the circulating air pump 24 passes through one end of the bellows 26, and the other end of the bellows 26 passes through the exhaust port 28. The exhaust port 28 is located at the lower end of the sealing cover 9. The third electronic valve 27 is installed on the end of the bellows 26 near the exhaust port 28.

[0033] The impurity filtration mechanism 3 includes an impurity filtration component 29 and an anti-backflow component 30. The impurity filtration component 29 is disposed in the first filter chamber 7, and the anti-backflow component 30 is disposed in the first output pipe 15.

[0034] The impurity filtration assembly 29 includes a second filtration chamber 31, filter holes 32, filter bags 33, a water pump 34, a water suction pipe 35, a water delivery pipe 36, and a water outlet 37. The water pump 34 is installed on the inner wall of the first filtration chamber 7. The water suction pipe 35 is installed at the pump inlet end of the water pump 34. One end of the water delivery pipe 36 is installed at the pump outlet end of the water pump 34. The other end of the water delivery pipe 36 is connected to the bubble plate 16. The lower end of the water delivery pipe 36 is sleeved on the second filtration chamber 31. Filter holes 32 are opened on the side wall of the second filtration chamber 31. Filter bags 33 are provided on the inner wall of the second filtration chamber 31. A water outlet 37 is opened on the side wall of the water delivery pipe 36. The water outlet 37 is located inside the second filtration chamber 31. The water suction pipe 35 is located above the water delivery pipe 36.

[0035] The anti-backflow assembly 30 includes a stop block 38, a spring 39, a limiting rod 40, a blocking ball 41, and a blocking port 42. The stop block 38 is fixedly installed on the inner wall of the first output pipe 15. The limiting rod 40 is installed on the inner wall of the first output pipe 15. The spring 39 is fixedly connected to the upper part of the limiting rod 40. The blocking ball 41 is fixedly connected to the upper end of the spring 39. The blocking port 42 is opened on the stop block 38. The center of gravity of the blocking ball 41 is located at the upper end of the stop block 38.

[0036] The temperature control assembly 4 includes a temperature control cavity 43, a heating element 44, and a coolant 45. The temperature control cavity 43 is sleeved on the outer wall of the first output pipe 15, the heating element 44 is installed on the inner wall of the temperature control cavity 43, and the coolant 45 is provided inside the temperature control cavity 43.

[0037] A drain pipe 46 is installed at the lower end of the side wall of the first filter chamber 7, and a fourth valve 47 is installed on the drain pipe 46.

[0038] In practical use, firstly, the output end of the telescopic electric cylinder 8 moves upward, causing the sealing cover 9 to move upward, conveying the mixed cleaning agent from the upper end of the first filter chamber 7 into the first filter chamber 7. Then, the output end of the telescopic electric cylinder 8 resets, the sealing cover 9 covers the first filter chamber 7, and the circulating air pump 24, the first electronic valve 17, and the third electronic valve 27 are opened. Nitrogen stored in the nitrogen storage tank 14 enters the cleaning agent in the form of microbubbles through the bubble plate 16, and then enters the return pipe 25 through the air extraction port 28, thus circulating the nitrogen storage tank 14. The second electronic valve 23 and the ultrasonic atomizing plate 22 are opened, and the hydrogen peroxide in the hydrogen peroxide storage tank 20 is atomized by the ultrasonic atomizing plate 22 and enters the first output pipe 15, entering the cleaning agent in the form of microbubbles along with the nitrogen. The temperature control chamber 43 is activated, heating the coolant 45 and raising the temperature of the first output pipe 15 wrapped by the temperature control chamber 43 to 40~50°C. At the same time, the ultrasonic generator 18 is activated, generating a cavitation effect through high-frequency vibration. A large number of micron-sized bubbles are formed in the liquid. These bubbles release high-pressure shock waves at the moment of closure. This process works synergistically with the principle of bubble adsorption of impurities in the air flotation method, accelerating the separation of pollutants. The cavitation effect of ultrasound can optimize the uniformity of bubble distribution and reduce the bubble merging problem that is prone to occur in traditional aeration methods. The stubborn organic matter is degraded by hydrogen peroxide oxidation, and the impurities are floated to the top of the detergent. Then, the circulating air pump 24, the first electronic valve 17, the second electronic valve 23, the ultrasonic atomizing plate 22 and the third electronic valve 27 are closed, and the water pump 34 is started. The floated impurities enter the water supply pipe 36 through the water suction pipe 35 and are sprayed into the second filter chamber 31 through the water outlet 37. After being filtered by the filter bag 33 and the filter hole 32, the impurities remain in the second filter chamber 31, completing the filtration of the detergent. Finally, the fourth valve 47 is opened, and the treated detergent is collected through the drain pipe 46. The function of the sealing ball 41 is to prevent the cleaning force from flowing back from the first output pipe 15. The above is the overall working process of the present invention. This step can be repeated for the next use.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0041] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A processing apparatus for a renewable hydrocarbon fuel injection cleaner, comprising a processing body (1), characterized in that: It also includes an atomizing air flotation impurity separation mechanism (2) and an impurity filtration mechanism (3). The atomizing air flotation impurity separation mechanism (2) is installed on the processing body (1), the impurity filtration mechanism (3) is installed on the processing body (1), and a temperature control component (4) is installed on the atomizing air flotation impurity separation mechanism (2). The atomizing air flotation impurity separation mechanism (2) includes a gas source storage component (11), an oxidation degradation component (12), and an airflow circulation component (13). The gas source storage component (11) is installed on the atomizing air flotation impurity separation mechanism (2), the oxidation degradation component (12) is installed on the atomizing air flotation impurity separation mechanism (2), and the airflow circulation component (13) is installed on the atomizing air flotation impurity separation mechanism (2).

2. The regenerated hydrocarbon fuel injection cleaning agent processing device according to claim 1, characterized in that: The processing body (1) includes a bracket (5), an equipment cavity (6) is installed on the bracket (5), a first filter cavity (7) is installed inside the equipment cavity (6), a telescopic electric cylinder (8) is installed on the inner wall of the equipment cavity (6), a sealing cover (9) is connected to the output end of the telescopic electric cylinder (8), and a transparent observation window (10) is installed on the front side of the equipment cavity (6).

3. The regenerated hydrocarbon fuel injection cleaning agent processing device according to claim 2, characterized in that: The gas source storage assembly (11) includes a nitrogen storage tank (14), which is installed on the side wall of the bracket (5). The output end of the nitrogen storage tank (14) is connected to one end of a first output pipe (15), and the other end of the first output pipe (15) is connected to a bubble plate (16). A first electronic valve (17) is installed on the end of the first output pipe (15) near the bubble plate (16), and an ultrasonic generator (18) is installed on the inner side wall of the first filter chamber (7).

4. The regenerated hydrocarbon fuel injection cleaning agent processing device according to claim 3, characterized in that: The oxidation degradation component (12) includes a housing (19), which is installed on the side wall of the bracket (5). The housing (19) is located above the nitrogen storage tank (14). The upper end of the housing (19) is fixedly connected to the hydrogen peroxide storage tank (20). The lower end of the hydrogen peroxide storage tank (20) is connected to one end of the second output pipe (21). The other end of the second output pipe (21) is connected to the side wall of the first output pipe (15). An ultrasonic atomizing plate (22) is installed on the inner side wall of the second output pipe (21). A second electronic valve (23) is installed on the second output pipe (21).

5. The regenerated hydrocarbon fuel injection cleaning agent processing device according to claim 4, characterized in that: The airflow circulation assembly (13) includes a circulation pump (24), which is installed on the outer wall of the equipment cavity (6). The output end of the circulation pump (24) is connected to one end of a return pipe (25), and the other end of the return pipe (25) is connected to the input end of a nitrogen storage tank (14). The inlet end of the circulation pump (24) is connected to one end of a bellows (26), and the other end of the bellows (26) is connected to an exhaust port (28). The exhaust port (28) is located at the lower end of the sealing cover (9), and a third electronic valve (27) is installed on one end of the bellows (26) near the exhaust port (28).

6. The regenerated hydrocarbon fuel injection cleaning agent processing device according to claim 5, characterized in that: The impurity filtration mechanism (3) includes an impurity filtration component (29) and an anti-backflow component (30). The impurity filtration component (29) is disposed in the first filter chamber (7), and the anti-backflow component (30) is disposed in the first output pipe (15).

7. The regenerated hydrocarbon fuel injection cleaning agent processing device according to claim 6, characterized in that: The impurity filtration assembly (29) includes a water pump (34), which is installed on the inner wall of the first filter chamber (7). The pump (34) is filled with a water pump pipe (35) at its inlet end. The pump (34) is connected to one end of a water supply pipe (36) at its outlet end. The other end of the water supply pipe (36) is connected to an air bubble plate (16). The lower end of the water supply pipe (36) is sleeved onto the second filter chamber (31). The second filter chamber (31) has a filter hole (32) on its side wall. The second filter chamber (31) has a filter bag (33) on its inner wall. The water supply pipe (36) has an outlet (37) on its side wall. The outlet (37) is located inside the second filter chamber (31). The water pump pipe (35) is located above the water supply pipe (36).

8. The regenerated hydrocarbon fuel injection cleaning agent processing device according to claim 7, characterized in that: The anti-backflow component (30) includes a stop block (38), which is fixedly installed on the inner wall of the first output pipe (15). A limiting rod (40) is installed on the inner wall of the first output pipe (15). A spring (39) is fixedly connected to the upper part of the limiting rod (40). A blocking ball (41) is fixedly connected to the upper end of the spring (39). A blocking port (42) is opened on the stop block (38). The center of gravity of the blocking ball (41) is located at the upper end of the stop block (38).

9. The regenerated hydrocarbon fuel injection cleaning agent processing device according to claim 8, characterized in that: The temperature control component (4) includes a temperature control cavity (43), which is sleeved on the outer wall of the first output pipe (15). A heating element (44) is installed on the inner wall of the temperature control cavity (43), and a coolant (45) is provided inside the temperature control cavity (43).

10. The regenerated hydrocarbon fuel injection cleaning agent processing device according to claim 9, characterized in that: A drain pipe (46) is installed at the lower end of the side wall of the first filter chamber (7), and a fourth valve (47) is installed on the drain pipe (46).

Images