Purification device and paint spraying room

Abstract

The purification device comprises an activated carbon purification mechanism, the activated carbon purification mechanism is arranged at a discharge outlet of the paint spray booth and comprises an activated carbon purification box, the activated carbon purification box is provided with an air inlet and an air outlet, and a rotating shaft is rotationally arranged in the activated carbon purification box. A plurality of activated carbon filter blades are arranged on the peripheral side of the rotating shaft, the rotating shaft is connected with a driving part, and the driving part is used for driving the rotating shaft to rotate so as to switch different activated carbon filter blades to the air inlet position of the activated carbon purification box. And according to the working time of each activated carbon filter page at the air inlet, the positions of the activated carbon filter pages are rotationally adjusted one by one, so that each activated carbon filter page can be fully utilized, and the waste gas of the spray booth is effectively purified. The waste gas purification device is simple in structure, the purification device can keep good waste gas treatment capacity for a long time by rapidly switching the activated carbon filter pages, and the waste gas purification effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the paint spraying technical field, concretely relates to a purification device and paint spraying room. BACKGROUND

[0002] The paint spraying room is a kind of equipment providing special environment for coating operation, and it is actually to spray paint on the object in a room to carry out paint coloring treatment.The paint spraying room can generally meet the requirements of temperature, humidity, illuminance, air cleanliness and other requirements for coating operation, and it is an environmental protection type coating equipment, so it is widely used in machinery, automobile, electrical equipment and other industries.

[0003] When spraying paint in the paint spraying room, waste gas is generated, which needs to be treated, and the existing paint spraying room mainly uses activated carbon purification mechanism to treat waste gas, such as the waste gas treatment device for paint spraying room disclosed in the patent document with the announcement number CN219083318U, which comprises a paint spraying room main body, a connecting pipe A connected with a fan main body is inserted on the top of the paint spraying room main body, a connecting box for treating waste gas is screw-fixed on one side of the fan main body, a filter screen for filtering solid particles in waste gas is screw-connected in the connecting box, a connecting pipe B for conveying waste gas is inserted on one side of the connecting box, and a purification box for purifying waste gas is installed on the end of the connecting pipe B away from the connecting box, the purification box is detachably connected with activated carbon screen A, photocatalyst screen and activated carbon screen B inside, and the activated carbon screen A is located above the photocatalyst screen, and the photocatalyst screen is located above the activated carbon screen B.The patent document is provided with a pump body, pipe A, pipe B, spray head, filter screen, photocatalyst screen, activated carbon screen A, activated carbon screen B and ultraviolet lamp, so as to facilitate the purification treatment of waste gas in the paint spraying room main body.

[0004] However, the activated carbon screen of the above-mentioned patent document is a fixed structure, and the activated carbon screen of the prior art is also basically fixedly installed, and after long-term waste gas treatment, the activated carbon will reach saturation state, so it is inconvenient to replace it quickly, which seriously affects the adsorption effect of harmful substances in waste gas and reduces the waste gas treatment effect of the paint spraying room. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a purification device and paint spraying room to solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above object, in one aspect, the utility model discloses the following technical scheme: a kind of purification device, including activated carbon purification mechanism, the activated carbon purification mechanism is arranged in the exhaust of spray booth, activated carbon purification mechanism includes activated carbon purification box, the activated carbon purification box is equipped with air inlet and air outlet, the air inlet is communicated with the exhaust of spray booth, rotatingly arranged in activated carbon purification box is pivot, the side of pivot is equipped with multiple activated carbon filter pages, pivot is connected with driving element, the driving element is used to drive pivot rotation, to switch different activated carbon filter pages to the air inlet position of activated carbon purification box.

[0007] As an optional implementation of the above technical solution, the activated carbon filter page includes a filter cartridge filled with activated carbon.

[0008] As an optional implementation of the above technical solution, the driving element includes an operating rod rotatably connected to one end of the pivot extending outside the activated carbon purification box. The surface of the activated carbon purification box is provided with a plurality of fixed buckles arranged in a ring shape. The fixed buckles are used to fix the operating rod.

[0009] As an optional implementation of the above technical solution, the air inlet and the air outlet are oppositely arranged on both sides of the activated carbon purification box, and the air inlet and the air outlet are both offset from the center of the activated carbon purification box.

[0010] As an optional implementation of the above technical solution, it further includes a water mist purification mechanism communicated with the air outlet.

[0011] As an optional implementation of the above technical solution, the water mist purification mechanism includes a water mist purification chimney. The sidewall of the water mist purification chimney is provided with a lateral inlet communicated with the air outlet. The top of the water mist purification chimney is provided with a water mist sprayer. The bottom of the water mist purification chimney is provided with a purification water pool.

[0012] As an optional implementation of the above technical solution, a water supply pipe is arranged between the purification water pool and the water mist sprayer. The water supply pipe is provided with a driving pump.

[0013] As an optional implementation of the above technical solution, the water mist purification chimney is provided with a first guide plate and a second guide plate. The first guide plate is used to guide the gas of the lateral inlet to move towards the direction of the water mist sprayer. The second guide plate is arranged below the first guide plate. The second guide plate is used to guide the liquid inside the water mist purification chimney to enter the purification water pool.

[0014] In another aspect, the utility model discloses the following technical scheme: a paint spraying room, including above -mentioned purification device still including room body and air exchange device, the room body inside is equipped with paint spraying space, and the room body bottom is equipped with support frame, and the both sides of room body are equipped with first air inlet channel and second air inlet channel respectively, first air inlet channel and second air inlet channel are respectively obliquely arranged on the opposite sides of room body, and one end of first air inlet channel and second air inlet channel is equipped with air inlet, and the other end of first air inlet channel and second air inlet channel is equipped with the air outlet that communicates with paint spraying space, and the height of air outlet is higher than the height of air inlet, the top of room body is equipped with the discharge port that communicates with paint spraying space, and the air exchange device is used to guide the air of room body outside to enter paint spraying space from below to top by first air inlet channel and second air inlet channel and is discharged from discharge port.

[0015] As an optional implementation of the above technical solution, it further comprises a conveying mechanism arranged along the first air inlet channel, the paint spraying space and the second air inlet channel.

[0016] As an optional implementation of the above technical solution, the conveying mechanism comprises a ring-shaped support track, a ring-shaped conveying chain and a driving device, the ring-shaped support track penetrates through the first air inlet channel, the paint spraying space and the second air inlet channel in sequence, the ring-shaped conveying chain is arranged along the ring-shaped support track, the ring-shaped conveying chain is provided with a hanging piece, and the driving device is used to drive the ring-shaped conveying chain to move along the ring-shaped support track.

[0017] As an optional implementation of the above technical solution, the ring-shaped conveying chain comprises a first upward feeding part, a first paint spraying part, a first downward discharging part, a second upward feeding part, a second paint spraying part and a second downward discharging part connected in sequence, the first upward feeding part and the second downward discharging part are arranged along the first air inlet channel, the first paint spraying part and the second paint spraying part are arranged in the paint spraying space, the first downward discharging part and the second upward feeding part are arranged along the second air inlet channel, and infrared drying devices are arranged above the first downward discharging part and the second downward discharging part.

[0018] As an optional implementation of the above technical solution, the hanging piece comprises a hanging ring fixed on the ring-shaped conveying chain.

[0019] As an optional implementation of the above technical solution, the hanging piece further comprises a hanging frame, and a hook is rotatably arranged at the top of the hanging frame and hung on the hanging ring.

[0020] As an optional implementation of the above technical solution, the driving device comprises a driving motor connected with a driving gear, and the driving gear is in mesh with the ring-shaped conveying chain.

[0021] As an optional implementation form of the above technical solution, the air exchange device comprises a fan and an exhaust pipe, the fan is arranged in the exhaust pipe, one end of the exhaust pipe is connected with the exhaust port, and the other end of the exhaust pipe is connected with the air inlet.

[0022] The present application has the following beneficial effects:

[0023] 1. The purifying device provided by the present application is simple in structure, and the active carbon filter sheets can be rapidly switched, which helps to keep the purifying device in good waste gas treatment capacity for a long time and improves the waste gas purification effect.

[0024] 2. The present application provides an environment-friendly paint spraying room, which has the following advantages: the room body is elevated to the upper layer, the exhaust port is arranged at the top of the room body, the air inlet is arranged at the lower layer of the room body, the spraying space is parallel to the surrounding space and has no overflow outlet, the room body airflow is smooth according to the principle of fluid mechanics, the operator is less affected by the paint mist pollution, the spraying quality is improved, the paint spraying amount per unit time is increased, and the paint consumption is reduced, the operator's vision is not blurred in the clear environment, the spraying point is accurately grasped, excessive blind spraying or blurred spraying operation is avoided, about 35% of paint is saved compared with the field paving mode, the operator changes from full-field mobile spraying to fixed-point operation, time waste caused by back and forth running is avoided, the work efficiency is improved by more than 30%, the factory environment-friendly emission is high-quality and up to standard, the working environment is greatly improved, the phenomenon of randomly placing workpieces in the factory is changed, the workpieces are placed in an orderly and sequential manner, and the operation channel is smooth. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a three-dimensional structure schematic view of the active carbon purifying mechanism in an embodiment of the present application;

[0026] Figure 2 is an exploded schematic view of the active carbon purifying mechanism in an embodiment of the present application;

[0027] Figure 3 is a three-dimensional structure schematic view of the water mist purifying mechanism in an embodiment of the present application;

[0028] Figure 4 is an internal structure schematic view of the water mist purifying mechanism in an embodiment of the present application.

[0029] Figure 5 is a structure schematic view of the paint spraying room in an embodiment of the present application;

[0030] Figure 6 is a schematic diagram of the three-dimensional structure of the house body in an embodiment of the utility model;

[0031] Figure 7 is a schematic diagram of the internal structure of the house body in an embodiment of the utility model;

[0032] Figure 8 is Figure 7 is an enlarged view of A part in the middle;

[0033] Figure 9 is a schematic diagram of the structure of the hanging rack in an embodiment of the utility model.

[0034] In the drawing: 1 - house body; 2 - air exchange device; 3 - conveying mechanism; 4 - activated carbon purification mechanism; 5 - water mist purification mechanism;

[0035] 11 - first air inlet channel; 12 - second air inlet channel; 13 - discharge port; 14 - support frame; 15 - cat ladder;

[0036] 31 - annular support track; 32 - annular conveying chain; 33 - driving device; 34 - hanging ring; 35 - hanging rack; 36 - hook;

[0037] 41 - activated carbon purification box; 42 - air inlet; 43 - air outlet; 44 - rotating shaft; 45 - filter cartridge; 46 - operating rod; 47 - fixing buckle;

[0038] 51 - water mist purification chimney; 52 - lateral inlet; 53 - water mist sprayer; 54 - purification water pool; 55 - first flow guide plate; 56 - second flow guide plate. DETAILED DESCRIPTION

[0039] As Figures 1-4 shown, the present embodiment provides a kind of purification device, including activated carbon purification mechanism 4, activated carbon purification mechanism 4 is arranged in the discharge port 13 of paint spraying room, to carry out purification treatment to the gas discharged by discharge port 13.Activated carbon purification mechanism 4 includes activated carbon purification box 41, and activated carbon purification box 41 is equipped with air inlet 42 and air outlet 43, air inlet 42 is communicated with the discharge port 13 of paint spraying room, and the exhaust gas of paint spraying room is discharged from discharge port 13, enters the inside of activated carbon purification box 41 by air inlet 42, and is discharged from air outlet 43 after purification treatment.

[0040] Rotating shaft 44 is rotationally arranged in activated carbon purification box 41, and the periphery of rotating shaft 44 is provided with a plurality of activated carbon filter pages, and rotating shaft 44 is connected with driving member, and driving member is used to drive rotating shaft 44 to rotate, to switch different activated carbon filter pages to the air inlet 42 position of activated carbon purification box 41.It is preferred that air inlet 42 and air outlet 43 are oppositely arranged at the two sides of activated carbon purification box 41, and air inlet 42 and air outlet 43 are all deviated from the center of activated carbon purification box 41.

[0041] The utility model discloses in specific use, according to each active carbon filter page is placed in the air inlet 42 work time length, rotates and adjusts the position of active carbon filter page one by one, make every active carbon filter page can be fully utilized, realize the effective purification treatment of the waste gas of paint spray booth. The utility model discloses simple structure, through the quick switching of active carbon filter page, help purification device long-term maintain better waste gas treatment capacity, improve the purification effect of waste gas.

[0042] Specific, active carbon filter page includes filter cylinder 45, and the filter cylinder 45 is filled with active carbon. After active carbon filter page uses a period of time, can replace active carbon.

[0043] Driving piece includes operating rod 46, and operating rod 46 is rotatably connected with the one end of pivot 44 extending to the outside of active carbon purification box 41, and the surface of active carbon purification box 41 is equipped with the fixed buckle 47 of annular arrangement, and the fixed buckle 47 is used for fixing operating rod 46. Operating rod 46 controls pivot 44 to rotate a certain angle, and after completing the switching of active carbon filter page, operating rod 46 is clamped on fixed buckle 47, so that operating rod 46 and pivot 44 remain fixed state.

[0044] In a specific embodiment, the purification device further includes water mist purification mechanism 5, and the water mist purification mechanism 5 is communicated with the air outlet 43 of active carbon purification box 41. The waste gas of paint spray booth is purified by active carbon purification mechanism 4 and water mist purification mechanism 5 in turn, improves waste gas purification effect, so as to reduce the pollution of waste gas to the environment as far as possible.

[0045] Specifically, the water mist purification mechanism 5 includes a water mist purification chimney 51, the sidewall of the water mist purification chimney 51 is provided with a lateral inlet 52 communicated with the air outlet 43, the top of the water mist purification chimney 51 is provided with a water mist sprayer 53, and the bottom of the water mist purification chimney 51 is provided with a purification water pool 54. Preferably, a water supply pipe is arranged between the purification water pool 54 and the water mist sprayer 53, a driving pump is arranged on the water supply pipe to realize the recycling of water resources. The inlet end of the water supply pipe is provided with a filter element, the water supply pipe delivers pressure clean water to the water mist sprayer, and the purification water pool 54 is a filter residue pool of the paint mist chimney, which needs to be cleaned and the filter element needs to be replaced from time to time.

[0046] The water mist purification chimney 51 is provided with a first guide plate 55 and a second guide plate 56, the first guide plate 55 is used for guiding the gas of the lateral inlet 52 to move towards the water mist sprayer 53, and the second guide plate 56 is arranged below the first guide plate 55 and is used for guiding the liquid in the water mist purification chimney 51 to enter the purification water pool 54.

[0047] The exhaust gas filtered by the activated carbon purification mechanism 4 can still contain a small amount of harmful substances. The exhaust gas enters the water mist purification chimney 51 through the lateral inlet 52. The first guide plate 55 guides the exhaust gas to flow to the upper part of the water mist purification chimney 51. An annular water mist sprayer 53 is arranged at the top of the water mist purification chimney 51. The annular pipe of the water mist sprayer 53 is densely provided with small nozzles in the circumferential direction. The small nozzles spray out fine streams that collide with each other or are sprayed onto the inner wall of the water mist purification chimney 51 to form dense water mist. The upward flowing exhaust gas and the falling water mist are mixed. The pure air separated from the exhaust gas overflows to the water mist purification chimney 51 and is discharged into the atmosphere. The small amount of particles in the exhaust gas condenses into water droplets along with the water mist and falls to the lower part of the water mist purification chimney 51. Then, the water droplets flow along the second guide plate 56 to the purification pool 54. The water surface of the purification pool 54 submerges the lower opening of the water mist purification chimney 51. Therefore, the exhaust gas cannot be discharged from the lower part of the water mist purification chimney 51. Only the smoke particles flow into the pool and deposit at the bottom of the pool. The bottom of the pool can be cleaned regularly.

[0048] As shown in Figures 5-9 The present embodiment also provides a paint spraying room. The paint spraying room comprises the above-mentioned purification device, a room body 1, and an air exchange device 2. The room body 1 is internally provided with a paint spraying space. The bottom of the room body 1 is provided with a support frame 14. The support frame 14 raises the room body 1, which is conducive to air intake. The room body 1 is connected with a crawling ladder 15, which facilitates operators to enter the paint spraying space to perform paint spraying operations. The two sides of the room body 1 are respectively provided with a first air inlet channel 11 and a second air inlet channel 12. The first air inlet channel 11 and the second air inlet channel 12 are respectively arranged on opposite sides of the room body 1 in an inclined manner. One end of each of the first air inlet channel 11 and the second air inlet channel 12 is provided with an air inlet. The other end of each of the first air inlet channel 11 and the second air inlet channel 12 is provided with an air outlet that is in communication with the paint spraying space. The height of the air outlet is higher than the height of the air inlet. The top of the room body 1 is provided with a discharge port 13 that is in communication with the paint spraying space. The air exchange device 2 is used to guide the air outside the room body 1 to enter the paint spraying space from bottom to top through the first air inlet channel 11 and the second air inlet channel 12 and to be discharged from the discharge port 13. The air exchange device 2 comprises a fan and an exhaust pipe. The fan is arranged in the exhaust pipe. One end of the exhaust pipe is connected with the discharge port 13. The other end of the exhaust pipe is connected with the air inlet 42.

[0049] The air exchange device 2 is installed at the position of the discharge port 13. The air exchange device 2 strongly and continuously sucks the paint mist generated during the paint spraying process, so that the paint mist in the room body 1 quickly flows into the discharge port 13. According to the principle of fluid mechanics, the air is taken in from bottom to top on the left and right sides of the room body 1, and the air is discharged upward at the top of the room body 1, so that the exhaust gas can be quickly discharged. After the operator holds a paint spraying gun to spray paint, the paint mist can be greatly reduced. Moreover, the purification device can purify the exhaust gas, thereby reducing environmental pollution.

[0050] The paint spraying room further comprises a conveying mechanism 3 arranged along the first air inlet channel 11, the paint spraying space and the second air inlet channel 12. The conveying mechanism 3 can be in the form of a linear single assembly line or a ring-shaped double assembly line.

[0051] Specifically, the conveying mechanism 3 comprises a ring-shaped support track 31, a ring-shaped conveying chain 32 and a driving device 33. The ring-shaped support track 31 penetrates through the first air inlet channel 11, the paint spraying space and the second air inlet channel 12 in sequence. The ring-shaped conveying chain 32 is arranged along the ring-shaped support track 31 and is provided with a hanging piece. The driving device 33 is configured to drive the ring-shaped conveying chain 32 to move along the ring-shaped support track 31. The driving device 33 comprises a driving motor connected with a driving gear, and the driving gear is engaged with the ring-shaped conveying chain 32. The workpiece is arranged on the hanging piece. The driving device 33 is configured to drive the ring-shaped conveying chain 32 to move along the ring-shaped support track 31, so as to realize the input, paint spraying and output of the workpiece. The operator can control the running speed, stop or operation of the ring-shaped conveying chain 32, so as to complete the paint spraying.

[0052] Preferably, the ring-shaped conveying chain 32 comprises a first upper feeding part, a first paint spraying part, a first lower discharging part, a second upper feeding part, a second paint spraying part and a second lower discharging part connected in sequence. The first upper feeding part and the second lower discharging part are arranged along the first air inlet channel 11. The first paint spraying part and the second paint spraying part are arranged in the paint spraying space. The first lower discharging part and the second upper feeding part are arranged along the second air inlet channel 12. The first lower discharging part and the second lower discharging part are provided with infrared drying devices above.

[0053] The room body 1, the first air inlet channel 11 and the second air inlet channel 12 are provided with partitions, so as to form two production lines. The room body 1 is divided into two compartments, and the two compartments are relatively independent paint spraying rooms with the same function and sharing the conveying mechanism 3, the first air inlet channel 11 and the second air inlet channel 12. Two operators can simultaneously work, or only one room is idle while the other paint spraying room is used. Each of the two paint spraying rooms is provided with an upper passage, a lower passage and a crawling ladder 15. The paint spraying rooms are set to have A side and B side on the opposite sides. The assembly line of the front paint spraying room is A up and B down, and the assembly line of the rear paint spraying room is B up and A left. The infrared drying device is arranged in the lower passage, so as to quickly dry the surface paint after paint spraying.

[0054] The hanging piece comprises a hanging ring 34 fixed on the ring-shaped conveying chain 32, and preferably further comprises a hanging frame 35, the top of the hanging frame 35 being rotatably provided with a hook 36 hung on the hanging ring 34.

[0055] Many times, some workpieces (such as U-shaped bolts of railway embedded parts, end cover housings of motor factories and electric vehicle frames and the like) do not need to be placed on the hanging frame 35, but can be directly hung on the hanging ring 34 (the hanging ring 34 can also be designed to rotate 360 degrees) for conveying and painting; the painting room suspension assembly line has auxiliary workers at both ends, respectively responsible for suspending and unloading the workpieces, the workpieces are placed on special process cars, the un-painted workpieces are sent to the upper passage by the process cars, the auxiliary workers are hung on the suspension assembly line, and the workpieces are unloaded by the auxiliary workers at the lower passage after being painted.

[0056] The utility model discloses utilize active carbon purification mechanism 4 and water mist purification mechanism 5 to the waste gas carry out purification treatment, reduced the outward emission of toxic gas, made factory environmental protection emission high quality up to standard. Fan import and the exhaust pipe butt joint of room body top, and the import of active carbon purification mechanism 4 and fan export butt joint, active carbon purification mechanism 4 can be multiple series connection, also can multiple parallel connection, the purpose is in purer purification paint mist.

[0057] The utility model discloses a kind of environmental protection paint spray booths, it is elevated to be placed in upper layer with room body 1, discharge port 13 is at the top of room body 1, air inlet is located in the lower layer of room body 1, there is no overflow outlet in parallel around space of paint spraying space, according to the principle of fluid mechanics, make room body 1 airflow smooth, operator is little affected by paint mist pollution, the direct effect generated is that paint spraying quality is improved, paint spraying quantity production in unit time is increased, paint consumption is reduced, because, in clear environment, operator vision is not blurred, paint spraying point is accurate, avoid excessive blind spray or fuzzy spray operation, relative field spread mode saves more than 35% paint, in addition, operator changes from full field activity spraying to fixed point operation, avoid back and forth running time waste, so that work efficiency is improved by more than 30%, factory environmental protection emission high quality up to standard, working environment is greatly improved, change the phenomenon that factory full ground random workpiece, so that object arrangement is orderly, operation passage is smooth.

[0058] In the description of the utility model, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, can be fixed connection, detachable connection, or integrated; can be mechanical connection or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the communication between two elements or the interaction relationship of two elements, for those skilled in the art, the specific meaning of the above terms in the utility model can be understood. In addition, the specific features, structures and the like described in the embodiments are included in at least one embodiment, and the features of different embodiments can be combined by those skilled in the art without mutual contradiction. The protection scope of the utility model is not limited to the above specific embodiments, according to the basic technical concept of the utility model, the embodiments that can be thought of by those skilled in the art without creative labor all belong to the protection scope of the utility model.

Claims

1. A purification device, characterized by The utility model provides an active carbon purifying mechanism (4) is arranged in the exhaust (13) of paint spraying room, and the active carbon purifying mechanism (4) includes active carbon purifying box (41), and the active carbon purifying box (41) is equipped with air inlet (42) and air outlet (43), air inlet (42) communicates with the exhaust (13) of paint spraying room, and the rotating shaft (44) is arranged in the active carbon purifying box (41), and the rotating shaft (44) is equipped with a plurality of active carbon filter pages on the side, and the rotating shaft (44) is connected with the drive part, and the drive part is used to drive the rotating shaft (44) rotation to switch different active carbon filter pages to the air inlet (42) position of active carbon purifying box (41).

2. The purification device of claim 1, wherein, The active carbon filter page includes filter cylinder (45), and the filter cylinder (45) is filled with active carbon, and the air inlet (42) and the air outlet (43) are oppositely arranged on the two sides of the active carbon purifying box (41), and the air inlet (42) and the air outlet (43) are all deviated from the center of the active carbon purifying box (41).

3. The purification device of claim 1, wherein, The drive part includes operating rod (46), and the operating rod (46) is rotatably connected with the end of the rotating shaft (44) extending to the outside of the active carbon purifying box (41), and the surface of the active carbon purifying box (41) is provided with a plurality of annularly arranged fixing buckles (47), and the fixing buckles (47) are used to fix the operating rod (46).

4. The purification device of claim 1, wherein, It also includes water mist purifying mechanism (5), and the water mist purifying mechanism (5) communicates with the air outlet (43), and the water mist purifying mechanism (5) includes water mist purifying chimney (51), and the side wall of the water mist purifying chimney (51) is provided with lateral inlet (52) communicating with the air outlet (43), and the top of the water mist purifying chimney (51) is provided with water mist sprayer (53), and the bottom of the water mist purifying chimney (51) is provided with purifying water pool (54).

5. The purification device of claim 4, wherein, The purifying water pool (54) and the water mist sprayer (53) are provided with water supply pipe, and the water supply pipe is provided with drive pump, and the water mist purifying chimney (51) is provided with first deflector (55) and second deflector (56), and the first deflector (55) is used to guide the gas of lateral inlet (52) to move towards the direction of water mist sprayer (53), and the second deflector (56) is arranged below the first deflector (55), and the second deflector (56) is used to guide the liquid in the water mist purifying chimney (51) to enter purifying water pool (54).

6. A paint spray booth characterized by, The purification device of any one of claims 1-5 further comprises a housing (1) and an air exchange device (2), the housing (1) is internally provided with a paint spraying space, the bottom of the housing (1) is provided with a support frame (14), the two sides of the housing (1) are respectively provided with a first air inlet channel (11) and a second air inlet channel (12), the first air inlet channel (11) and the second air inlet channel (12) are respectively arranged on the opposite sides of the housing (1), one end of the first air inlet channel (11) and the second air inlet channel (12) is provided with an air inlet, the other end of the first air inlet channel (11) and the second air inlet channel (12) is provided with an air outlet communicated with the paint spraying space, the height of the air outlet is higher than the height of the air inlet; the top of the housing (1) is provided with a discharge port (13) communicated with the paint spraying space, the air exchange device (2) is used for guiding the air outside the housing (1) to enter the paint spraying space from bottom to top through the first air inlet channel (11) and the second air inlet channel (12) and be discharged from the discharge port (13).

7. The paint booth of claim 6, wherein, Further comprising a conveying mechanism (3), the conveying mechanism (3) is arranged along the first air inlet channel (11), the paint spraying space and the second air inlet channel (12); the conveying mechanism (3) comprises a ring-shaped support track (31), a ring-shaped conveying chain (32) and a driving device (33), the ring-shaped support track (31) penetrates the first air inlet channel (11), the paint spraying space and the second air inlet channel (12) in sequence, the ring-shaped conveying chain (32) is arranged along the ring-shaped support track (31), the ring-shaped conveying chain (32) is provided with a hanging piece, the driving device (33) is used for driving the ring-shaped conveying chain (32) to move along the ring-shaped support track (31).

8. The paint booth of claim 7, wherein, The ring-shaped conveying chain (32) comprises a first uplink feeding part, a first paint spraying part, a first downlink discharging part, a second uplink feeding part, a second paint spraying part and a second downlink discharging part connected in sequence, the first uplink feeding part and the second downlink discharging part are arranged along the first air inlet channel (11), the first paint spraying part and the second paint spraying part are arranged in the paint spraying space, the first downlink discharging part and the second uplink feeding part are arranged along the second air inlet channel (12), and infrared drying devices are arranged above the first downlink discharging part and the second downlink discharging part.

9. The paint booth of claim 8, wherein, The hanging piece comprises a hanging ring (34) fixed on the ring-shaped conveying chain (32), and further comprises a hanging frame (35), the top of the hanging frame (35) is rotatably provided with a hook (36), the hook (36) is hung on the hanging ring (34), and the driving device (33) comprises a driving motor connected with a driving gear, and the driving gear is in mesh with the ring-shaped conveying chain (32).

10. The paint booth of claim 6, wherein, The air exchange device (2) comprises a fan and an exhaust pipe, the fan is arranged in the exhaust pipe, one end of the exhaust pipe is connected with the discharge port (13), and the other end of the exhaust pipe is connected with an air inlet (42).

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