Water curtain cyclone paint spraying cabinet

Abstract

The utility model belongs to the technical field of paint spraying tail gas treatment, and provides a water curtain cyclone paint spraying cabinet which comprises a cabinet body, a water curtain mechanism, a cyclone mechanism and a water circulation mechanism, the water curtain mechanism, the cyclone mechanism and the water circulation mechanism are respectively installed on the cabinet body, a suction cavity and a treatment cavity are arranged in the cabinet body in parallel, and the water curtain mechanism comprises a water curtain plate and a water tank arranged at the top of the water curtain plate. The water curtain plate is arranged on the side, close to the treatment cavity, of the suction cavity, the cyclone mechanism comprises a cyclone cylinder and a louver fan, the cyclone cylinder is arranged in the treatment cavity, the louver fan is rotationally arranged in the cyclone cylinder, the water circulation mechanism comprises a water tank, a water pump, a first flow guide plate and a baffle, the water tank is arranged at the bottom of the cabinet body, and the water pump conveys water in the water tank to the water tank and the cyclone cylinder; one end of the baffle plate is connected with the water curtain plate, the other end of the baffle plate extends towards the treatment cavity, the baffle plate covers the first guide plate, and the baffle plate and the first guide plate form a channel for communicating the suction cavity with the cyclone cylinder. The paint spraying waste gas treatment device is simple in structure and high in paint spraying waste gas treatment rate.

Description

Technical Field

[0001] The utility model relates to the technical field of paint spraying tail gas, in particular to a water curtain cyclone paint spraying cabinet. Background Art

[0002] Spraying is one of the common processes in industrial production. It is usually carried out in a spray room. When the workpiece is sprayed with paint, there is always a part of the paint mist that diffuses around the workpiece, affecting the health of the operator. If it is directly discharged outdoors, it will pollute the atmospheric environment. Therefore, spray purification equipment to solve this problem has emerged. At present, the most common spray purification equipment on the market is the water curtain spray booth.

[0003] Most of the water curtain cabinets on the market use water pumps to extract water from the water tank and transport it to the water curtain plate and cyclone cylinder, and then the water flows back from the water curtain plate and cyclone cylinder to the water tank. However, the water will bring the paint mist that can dissolve in the water flow into the water tank during the reflux process. These sprays flowing to the water tank will form a layer of paint film floating on the water surface. Since the density of the paint film is much smaller than that of water, the paint film will float on the water surface. Since the water flow in the water tank is in an agitated state under the action of air flow and water flow, the paint film will wander around the water tank and be difficult to remove. In addition, the repeated agitation of the paint film and water will form an oil-water mixed emulsion. The viscosity of the emulsion is relatively large, which can easily cause blockage of the water pump and pipeline, affecting the service life of the equipment.

[0004] The technical problem to be solved by the utility model is: how to solve the problem of inconvenience in removing the paint film in the water tank of the existing water curtain spraying cabinet. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model aims to provide a water curtain cyclone paint spraying booth, which has the characteristics of simple structure, efficient treatment of paint exhaust gas and convenient removal of paint film.

[0006] The technical scheme adopted by the utility model is: a water curtain cyclone paint spraying cabinet, comprising a cabinet body, a water curtain mechanism, a cyclone mechanism and a water circulation mechanism respectively installed on the cabinet body, a suction chamber and a processing chamber are arranged in parallel in the cabinet body, an opening is arranged on the side of the suction chamber away from the processing chamber, the water curtain mechanism comprises a water curtain plate and a water tank arranged on the top of the water curtain plate, the water curtain plate is arranged on the side of the suction chamber close to the processing chamber, the cyclone mechanism comprises a cyclone cylinder and a shutter fan, the cyclone cylinder is built in the processing chamber, the shutter fan is rotatably arranged inside the cyclone cylinder, the water circulation mechanism comprises a water tank and a water pump, the water tank is arranged at the bottom of the cabinet body, a gap is arranged between the bottom of the water curtain plate and the liquid level of the water tank, and the water pump transports the water in the water tank to the water tank and the cyclone cylinder through a pipeline;

[0007] The water circulation mechanism also includes a first guide plate and a baffle. The first guide plate is arranged in the water tank. One end of the first guide plate is exposed to the liquid surface of the water tank, and the other end is gradually inclined downward toward the suction chamber. One end of the baffle is connected to the water curtain plate, and the other end extends toward the processing chamber. The vertical projection area of ​​the baffle covers the end of the first guide plate exposed to the liquid surface. The baffle and the first guide plate form a channel connecting the suction chamber and the cyclone cylinder.

[0008] In the water curtain cyclone paint spraying booth of the present application, the paint mist drifting toward the water curtain plate and part of the paint mist flowing through the gap below the water curtain plate fall into the water tank and float on the liquid surface under the flushing of the water curtain, and then enter the side of the water tank away from the suction chamber along the first guide plate with the air flow. Since one end of the first guide plate is higher than the liquid surface, the floating paint can be prevented from flowing back to the liquid surface of the water tank on the side of the suction chamber, and the paint mist intercepted by the cyclone cylinder can also flow back to the water tank with the water flow. Due to the interception of the baffle, the paint intercepted by the cyclone cylinder can be prevented from entering the liquid surface of the water tank on the side of the suction chamber, that is, the intercepted paint will be concentrated on the liquid surface away from the suction chamber, so as to facilitate the concentrated removal of the paint floating on the liquid surface. The floating paint can be removed by manual timed scooping or by using oil absorbent felt on the side away from the suction chamber, so that the water in the water tank is kept clean and the formation of turbid emulsion is avoided, thereby ensuring the paint mist treatment effect of the paint spraying booth and extending its service life.

[0009] In some embodiments, the water circulation mechanism further includes a second guide plate connected to the first guide plate, one end of the second guide plate is connected to the end of the first guide plate exposed to the liquid surface, and the other end gradually extends downward in a direction away from the first guide plate.

[0010] By adopting the above technical solution, the second guide plate can guide the floating paint flowing from the first guide plate to enter the liquid surface on the side away from the suction chamber.

[0011] In some embodiments, the first guide plate is connected to the second guide plate via a transition plate.

[0012] By adopting the above technical solution, the transition plate can make the floating paint on the first guide plate transition to the second guide plate, and at the same time can reduce the resistance of the airflow to facilitate the airflow to enter the cyclone cylinder.

[0013] In some embodiments, one end of the baffle away from the water curtain plate gradually inclines and extends toward the water tank.

[0014] By adopting the above technical solution, the water flow left from the cyclone cylinder can be guided to converge into the water tank, thereby preventing water from being retained on the baffle and improving the efficiency of water circulation.

[0015] In some embodiments, a first nozzle is disposed on the top of the cyclone cylinder, and the first nozzle is connected to the water pump through a pipeline.

[0016] By adopting the above technical scheme, the water sprayed by the first nozzle enters the cyclone barrel from top to bottom, and the paint mist enters the cyclone barrel from the bottom of the cyclone barrel in a swirling state, and rises in the cyclone barrel in a swirling state under the action of the louver fan. The gas and liquid collide with each other in the cyclone barrel to form a mixture of gaseous, liquid and solid states. A part of the paint mist particles are thrown onto the wall of the cyclone barrel and separated under the action of the swirling centrifugal force; a part of the paint mist particles are captured by the circulating water in the cyclone barrel; the circulating water in the cyclone barrel and the separated and captured paint mist particles flow back to the water tank from the bottom of the cyclone barrel, which can improve the efficiency of paint mist removal.

[0017] In some embodiments, the cyclone mechanism further includes a buffer box disposed at the bottom of the cyclone cylinder, the buffer box connects the water tank and the cyclone cylinder, and a baffle is disposed at the bottom of the buffer box.

[0018] By adopting the above technical solution, the buffer box cooperates with the baffle to prevent the floating paint captured by the cyclone from returning to the liquid surface close to the suction chamber.

[0019] In some embodiments, a second nozzle is disposed in the buffer tank, and the second nozzle is connected to the water pump through a pipeline.

[0020] By adopting the above technical solution, the water flow sprayed by the second nozzle can first intercept a part of the paint mist in the airflow to be entered into the cyclone through the water flow, and the water flow sprayed by the second nozzle can also flush the floating paint remaining on the baffle to keep the baffle clean.

[0021] In some embodiments, a fan is disposed on the top of the cabinet, a filter box is disposed between the fan and the cyclone cylinder, and the filter box is filled with environmental protection balls.

[0022] By adopting the above technical solution, the fan is used to generate negative pressure airflow, driving the paint mist to circulate along a preset path inside the water curtain cyclone paint spray booth of this application. The filter box can make a final interception of the airflow flowing through the cyclone cylinder, intercept the tiny paint particles remaining in the airflow, and improve the purification effect of the paint mist.

[0023] In some embodiments, an observation window is provided on a side of the cyclone cylinder away from the water curtain plate.

[0024] By adopting the above technical solution, it is easy to observe the situation inside the cyclone cylinder, so that the operator can adjust the equipment according to the actual situation.

[0025] In some embodiments, a filter plate is provided at the water inlet of the water pump, and the filter plate is built into the water tank.

[0026] By adopting the above technical solution, the filter plate can intercept impurities in the water tank, prevent the impurities from entering the water pump and causing damage to the water pump, thereby increasing the service life of the water pump and improving the cleanliness of the circulating water entering the water curtain plate and the cyclone cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a water curtain cyclone paint spray booth of a preferred embodiment of the utility model;

[0028] Figure 2 for Figure 1 The schematic diagram of the structure of the water curtain cyclone spray booth from another perspective is shown;

[0029] Figure 3 for Figure 1 The schematic diagram of the cross-sectional structure of the water curtain cyclone spray booth along the AA line is shown;

[0030] Figure 4 for Figure 1 The schematic diagram of the cross-sectional structure of the water curtain cyclone spray booth along line BB is shown.

[0031] In the figure: 100, water curtain cyclone paint spray booth; 10, cabinet; 11, suction chamber; 12, processing chamber; 20, water curtain mechanism; 21, water curtain plate; 22, water tank; 30, cyclone mechanism; 31, cyclone cylinder; 311, observation window; 32, shutter fan; 33, buffer box; 40, water circulation mechanism; 41, water tank; 42, water pump; 43, pipeline; 431, first nozzle; 432, second nozzle; 44, first guide plate; 45, baffle; 46, second guide plate; 47, transition plate; 48, filter plate; 50, filter box. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. When the number of an element is referred to as "plurality", it may be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] See also Figures 1 to 4 , which is a water curtain cyclone paint spraying booth 100 according to a preferred embodiment of the present invention, comprises a cabinet body 10, and a water curtain mechanism 20, a cyclone mechanism 30 and a water circulation mechanism 40 respectively installed on the cabinet body 10.

[0036] like Figure 1 and Figure 2 As shown, a suction chamber 11 and a processing chamber 12 are arranged in parallel in the cabinet 10, and an opening is arranged on a side of the suction chamber 11 away from the processing chamber 12. The water curtain mechanism 20 includes a water curtain plate 21 and a water tank 22 arranged on the top of the water curtain plate 21. The water curtain plate 21 is arranged on a side of the suction chamber 11 close to the processing chamber 12. Water is continuously added to the water tank 22 so that the water in the water tank 22 overflows onto the water curtain plate 21 and forms a continuous water curtain on the water curtain plate 21, so that the paint mist attached to the water curtain plate 21 and the paint mist mixed with the airflow flowing through the bottom of the water curtain plate 21 are intercepted by the water curtain.

[0037] The cyclone mechanism 30 includes a cyclone cylinder 31 and a louver fan 32. The cyclone cylinder 31 is built into the processing chamber 12, and the louver fan 32 is rotatably arranged inside the cyclone cylinder 31. In this embodiment, two cyclone cylinders 31 are arranged at intervals in the processing chamber 12. In other embodiments, the number of cyclone cylinders 31 can be increased or decreased according to actual needs, and is not limited to the number shown in the drawings.

[0038] like Figure 4 As shown, the water circulation mechanism 40 includes a water tank 41 and a water pump 42. The water tank 41 is arranged at the bottom of the cabinet 10, and the top of the water tank 41 is an open structure. A gap is provided between the bottom of the water curtain plate 21 and the liquid surface of the water tank 41. The water pump 42 transports the water in the water tank 41 to the water tank 22 and the cyclone cylinder 31 through a pipe 43.

[0039] Further, the water circulation mechanism 40 further includes a first guide plate 44 and a baffle plate 45. The first guide plate 44 is disposed in the water tank 41. One end of the first guide plate 44 is exposed from the liquid surface of the water tank 41, and the other end is gradually inclined downward toward the suction chamber 11. One end of the baffle plate 45 is connected to the water curtain plate 21, and the other end extends toward the processing chamber 12. The vertical projection area of ​​the baffle plate 45 covers the end of the first guide plate 44 exposed from the liquid surface. The baffle plate 45 and the first guide plate 44 form a channel connecting the suction chamber 11 and the cyclone cylinder 31. The first guide plate 44 plays a role in guiding the flow of air and water, and also prevents the paint floating on the liquid surface from flowing back to the side of the suction chamber 11.

[0040] Furthermore, the water circulation mechanism 40 further includes a second guide plate 46 connected to the first guide plate 44, one end of the second guide plate 46 is connected to the end of the first guide plate 44 exposed to the liquid surface, and the other end of the second guide plate 46 gradually extends downward in a direction away from the first guide plate 44. The second guide plate 46 can guide the floating paint flowing from the first guide plate 44 to enter the liquid surface on the side away from the suction chamber 11.

[0041] Preferably, the first guide plate 44 is connected to the second guide plate 46 via a transition plate 47. The transition plate 47 can make the floating paint on the first guide plate 44 transition to the second guide plate 46, and can also reduce the resistance of the airflow, so that the airflow enters the cyclone cylinder 31. In order to reduce the resistance of the airflow, the transition plate 47 should be set to be parallel or nearly parallel to the horizontal.

[0042] Preferably, the end of the baffle 45 away from the water curtain plate 21 gradually extends toward the water tank 41. The water flow left from the cyclone cylinder 31 can be guided to converge into the water tank 41, avoiding water retention on the baffle 45, thereby improving the efficiency of water circulation.

[0043] Please also read Figure 3 and Figure 4 A first nozzle 431 is provided at the top of the cyclone cylinder 31, and the first nozzle 431 is connected to the water pump 42 through a pipe 43. The water sprayed by the first nozzle 431 enters the cyclone cylinder 31 from top to bottom, and the paint mist enters the cyclone cylinder 31 from the bottom of the cyclone cylinder 31 in a cyclonic state, and rises in the cyclonic state inside the cyclone cylinder 31 under the action of the louver fan 32. The gas and the liquid collide with each other in the cyclone cylinder 31 to form a mixture of three states of gas, liquid and solid. A part of the paint mist particles are thrown onto the wall of the cyclone cylinder 31 under the action of the cyclonic centrifugal force and separated; a part of the paint mist particles are captured by the circulating water in the cyclone cylinder 31; the circulating water in the cyclone cylinder 31 and the separated and captured paint mist particles flow back to the water tank 41 from the bottom of the cyclone cylinder 31, which can improve the efficiency of removing the paint mist.

[0044] Optionally, the cyclone mechanism 30 further includes a buffer box 33 disposed at the bottom of the cyclone cylinder 31, the buffer box 33 connects the water tank 41 and the cyclone cylinder 31, and a baffle 45 is disposed at the bottom of the buffer box 33. The buffer box 33 cooperates with the baffle 45 to prevent the floating paint captured by the cyclone cylinder 31 from returning to the liquid surface near the suction chamber 11 side.

[0045] Preferably, a second nozzle 432 is provided in the buffer box 33, and the second nozzle 432 is connected to the water pump 42 through a pipe 43. The water flow sprayed by the second nozzle 432 can intercept a part of the paint mist in the air flow to be introduced into the cyclone cylinder 31 through the water flow, and the water flow sprayed by the second nozzle 432 can also flush the floating paint remaining on the baffle 45, so that the baffle 45 is kept clean.

[0046] like Figure 4 As shown, a fan (not shown) is arranged on the top of the cabinet 10, and a filter box 50 is arranged between the fan and the cyclone cylinder 31, and the filter box 50 is filled with environmental protection balls. The fan is used to generate negative pressure airflow, driving the paint mist to flow along a preset path inside the water curtain cyclone paint spraying cabinet 100, and the filter box 50 can make the final interception of the airflow flowing through the cyclone cylinder 31, intercepting the tiny paint particles remaining in the airflow, and improving the purification effect of the paint mist.

[0047] Optionally, each cyclone cylinder 31 may correspond to a filter box 50 , or multiple cyclone cylinders 31 may correspond to one filter box 50 .

[0048] Optionally, an observation window 311 is provided on one side of the cyclone cylinder 31 away from the water curtain plate 21. It is convenient to observe the situation inside the cyclone cylinder 31, so that the operator can adjust the equipment according to the actual situation.

[0049] Preferably, a filter plate 48 is provided at the water inlet of the water pump 42, and the filter plate 48 is built into the water tank 41. The filter plate 48 can intercept impurities in the water tank 41, prevent the impurities from entering the water pump 42 and causing damage to the water pump 42, thereby increasing the service life of the water pump 42, and can improve the cleanliness of the circulating water entering the water curtain plate 21 and the cyclone cylinder 31.

[0050] In the water curtain cyclone paint spray booth 100 of the present application, the paint mist drifting toward the water curtain plate 21 and part of the paint mist flowing through the gap below the water curtain plate 21 fall into the water tank 41 under the flushing of the water curtain and float on the liquid surface, and then follow the airflow along the first guide plate 44 to enter the side of the water tank 41 away from the suction chamber 11. Since one end of the first guide plate 44 is higher than the liquid surface, the floating paint can be prevented from flowing back to the liquid surface of the water tank 41 on the side of the suction chamber 11, and the paint mist intercepted by the cyclone cylinder 31 also flows back to the water tank 41 with the water flow. Due to the interception of the baffle 45, the paint intercepted by the cyclone cylinder 31 can be prevented from entering the water on the side of the suction chamber 11. The liquid level of the box 41, that is, the intercepted paint will be concentrated on the liquid level on the side away from the suction chamber 11, so as to concentrate on taking the paint floating on the liquid level. The floating paint can be removed by manual timed scooping or by using oil-absorbing felt on the side away from the suction chamber 11, so that the water in the water tank 41 can be kept clean and avoid forming a turbid emulsion, thereby ensuring the paint mist treatment effect of the paint spraying booth and extending its service life. In addition, when the airflow treated by the cyclone cylinder 31 passes through the filter box 50, the water vapor and the remaining paint particles contained in the airflow are absorbed and intercepted by the environmental protection ball in the filter box 50, so that the air discharged from the paint spraying booth is fully purified.

[0051] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water curtain cyclone paint spraying booth, comprising a cabinet body (10), a water curtain mechanism (20) respectively mounted on the cabinet body (10), a cyclone mechanism (30) and a water circulation mechanism (40), wherein the cabinet body (10) is provided with a suction chamber (11) and a processing chamber (12) arranged in parallel, wherein a side of the suction chamber (11) away from the processing chamber (12) is provided with an opening, wherein the water curtain mechanism (20) comprises a water curtain plate (21) and a water tank (22) arranged on the top of the water curtain plate (21), wherein the water curtain plate (21) is arranged on a side of the suction chamber (11) close to the processing chamber (12), and wherein the cyclone mechanism (30) is provided with a water curtain plate (21) and a water tank (22) arranged on the top of the water curtain plate (21), wherein the water curtain plate (21) is arranged on a side of the suction chamber (11) close to the processing chamber (12), and wherein the cyclone mechanism (40) is provided with a water curtain plate (21) and a water tank (22) arranged on the top of the water curtain plate (21), wherein the water curtain plate (21) is arranged on a side of the suction chamber (11) close to the processing chamber (12), and wherein the cyclone mechanism (30) is provided with a water curtain plate (21) and a water tank (22) arranged on the top of the water curtain plate (21), wherein the water curtain plate (21) is provided on a side of the suction chamber (11) close to the processing chamber (12), and wherein the cyclone mechanism (40) is provided with a water curtain plate (21) and a water tank (22) arranged on the top of the water curtain plate (21), wherein the cyclone mechanism (30) is provided with a water curtain plate (21) and a water tank (22) arranged on the top of the water curtain plate (21), wherein the cyclone mechanism (40) is provided with a water curtain plate (21 The mechanism (30) comprises a cyclone cylinder (31) and a louver fan (32), wherein the cyclone cylinder (31) is built in the processing chamber (12), and the louver fan (32) is rotatably arranged inside the cyclone cylinder (31). The water circulation mechanism (40) comprises a water tank (41) and a water pump (42), wherein the water tank (41) is arranged at the bottom of the cabinet (10), and a gap is arranged between the bottom of the water curtain plate (21) and the liquid surface of the water tank (41), and the water pump (42) transports the water in the water tank (41) to the water tank (22) and the cyclone cylinder (31) through a pipeline (43), and is characterized in that: The water circulation mechanism (40) further comprises a first guide plate (44) and a baffle plate (45); the first guide plate (44) is arranged in the water tank (41); one end of the first guide plate (44) is exposed above the liquid surface of the water tank (41); the other end of the first guide plate (44) is gradually inclined downward toward the suction chamber (11); one end of the baffle plate (45) is connected to the water curtain plate (21); the other end of the baffle plate (45) extends toward the treatment chamber (12); and the vertical projection area of ​​the baffle plate (45) covers the end of the first guide plate (44) exposed above the liquid surface; the baffle plate (45) and the first guide plate (44) form a channel connecting the suction chamber (11) and the cyclone cylinder (31).

2. The water curtain cyclone paint spray booth according to claim 1 is characterized in that: The water circulation mechanism (40) further comprises a second guide plate (46) connected to the first guide plate (44), one end of the second guide plate (46) being connected to an end of the first guide plate (44) exposed to the liquid surface, and the other end of the second guide plate (46) gradually extending downward in a direction away from the first guide plate (44).

3. The water curtain cyclone paint spray booth according to claim 2 is characterized in that: The first guide plate (44) and the second guide plate (46) are connected via a transition plate (47).

4. The water curtain cyclone paint spray booth according to claim 1, characterized in that: One end of the baffle plate (45) away from the water curtain plate (21) gradually inclines and extends toward the water tank (41).

5. The water curtain cyclone paint spray booth according to claim 1, characterized in that: A first nozzle (431) is provided at the top of the cyclone cylinder (31), and the first nozzle (431) is connected to the water pump (42) through a pipeline (43).

6. The water curtain cyclone paint spray booth according to claim 1, characterized in that: The cyclone mechanism (30) further comprises a buffer box (33) arranged at the bottom of the cyclone cylinder (31), the buffer box (33) being connected to the water tank (41) and the cyclone cylinder (31), and the baffle (45) being arranged at the bottom of the buffer box (33).

7. The water curtain cyclone paint spray booth according to claim 6, characterized in that: A second nozzle (432) is arranged in the buffer box (33), and the second nozzle (432) is connected to the water pump (42) through a pipeline (43).

8. The water curtain cyclone paint spray booth according to claim 1, characterized in that: A fan is arranged on the top of the cabinet (10), a filter box (50) is arranged between the fan and the cyclone cylinder (31), and the filter box (50) is filled with environmental protection balls.

9. The water curtain cyclone paint spray booth according to claim 1, characterized in that: An observation window (311) is provided on a side of the cyclone cylinder (31) away from the water curtain plate (21).

10. The water curtain cyclone paint spray booth according to claim 1, characterized in that: A filter plate (48) is provided at the water inlet of the water pump (42), and the filter plate (48) is built into the water tank (41).

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