Environment-friendly renovation waste gas purification system of automobile interior trim part coating production line

Abstract

The invention provides an environment-friendly renovation waste gas purification system of an automobile interior trim part coating production line, and relates to the technical field of coating line waste gas recovery, the environment-friendly renovation waste gas purification system comprises a spraying collection box and an isolation sinking plate, and the upper surface of a front opening of the spraying collection box is fixedly connected with the upper edge of the isolation sinking plate; a gap is formed between the lower edge of the isolation flow sinking plate and the lower edge of the opening of the spraying collecting box, and an isolation supporting plate is arranged on the upper edge of the isolation flow sinking plate, so that the contact area and the contact duration of a coating and air can be reduced, the volatilization amount of the coating in the process of flowing downwards along with water flow is reduced, and the problem that when a traditional water curtain cabinet absorbs waste gas, the waste gas is wasted is solved. Spraying paint is mixed with water flow after making contact with the water curtain, then flows into a waste water collecting area and still makes contact with air in the process of flowing downwards along with the water flow, part of harmful gas volatilizes into the air, and for spraying operation with the large spraying amount, the spraying paint is not prone to falling off. When a traditional water curtain cabinet is used, harmful waste gas can be volatilized into the air, and the air environment is polluted.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas recovery in coating lines, and particularly to an environmental protection rectification waste gas purification system for automobile interior part coating production lines. Background Art

[0002] Automobile interior parts include components such as automobile armrests, tower plates, and storage racks. To improve the aesthetics of automobile interiors, the surfaces of interior parts need to be painted through a coating process to add colors. When automobile interior parts are spray-painted in a spraying workshop, since the spray paint is volatile, after the excess paint that does not contact the automobile interior parts during the spraying process comes into contact with the air, the toxic substances (benzene, toluene, xylene, formaldehyde, styrene, acetaldehyde, TVOC, etc.) in the paint will volatilize and enter the air. Direct emission will seriously pollute the air and endanger human health; the recovery and treatment of waste gas can greatly reduce pollutant emissions and improve air quality.

[0003] In traditional spray waste gas recovery operations, it is common to use a water curtain cabinet to collect spray waste and waste gas. When the traditional water curtain cabinet absorbs waste gas, the spray paint contacts the water curtain and then melts into the water flow and flows into the waste water collection area. During the downward flow of the water flow, it will still contact the air, causing some harmful gases to volatilize into the air. For spray operations with a large spraying volume, using a traditional water curtain cabinet will still cause harmful waste gas to volatilize into the air and pollute the air environment; if the water flow rate of the traditional water curtain door is increased, it will increase the water consumption, resulting in an increase in production costs and an increase in the pressure of subsequent waste water treatment. Summary of the Invention

[0004] The present invention provides an environmental protection rectification waste gas purification system for an automobile interior part coating production line to solve the problems in traditional spray waste gas recovery operations. In traditional operations, it is common to use a water curtain cabinet to collect spray waste and waste gas. When the traditional water curtain cabinet absorbs waste gas, the spray paint contacts the water curtain and then melts into the water flow and flows into the waste water collection area. During the downward flow of the water flow, it will still contact the air, causing some harmful gases to volatilize into the air. For spray operations with a large spraying volume, using a traditional water curtain cabinet will still cause harmful waste gas to volatilize into the air and pollute the air environment; if the water flow rate of the traditional water curtain door is increased, it will increase the water consumption, resulting in an increase in production costs and an increase in the pressure of subsequent waste water treatment.

[0005] The present invention provides an environmental protection rectification waste gas purification system for an automotive interior part painting production line, specifically including: a spray collection box and an isolation sedimentation plate. The upper surface of the front opening of the spray collection box is fixedly connected to the upper edge of the isolation sedimentation plate. There is a gap between the lower edge of the isolation sedimentation plate and the lower edge of the opening of the spray collection box. An isolation support plate is provided at the upper edge of the isolation sedimentation plate. A sedimentation rotating column is rotatably connected below the isolation support plate. Adjacent sedimentation rotating columns are connected by a transmission belt. A rotation driving motor is installed on the right side of the spray collection box. The rotation driving motor drives the sedimentation rotating column through the transmission belt. An atomization water pump is provided on the right surface of the spray collection box. An atomization spray pipe is provided behind the gap between adjacent sedimentation rotating columns. The upper end of the atomization spray pipe is fixedly connected to the isolation support plate. Atomization nozzles are provided behind and on the side of the atomization spray pipe. The upper end of the atomization spray pipe communicates with a spray pipe shunt pipe, and the spray pipe shunt pipe is fixedly connected to the output end of the atomization water pump. The bottom of the front opening of the spray collection box is fixedly connected to an obliquely flushing bottom plate. An activated carbon adsorption box is installed above the spray collection box. A communication inlet for docking with a communication air port is provided at the center of the bottom of the activated carbon adsorption box. A circulating exhaust cylinder is provided inside the activated carbon adsorption box, and an axial flow fan is provided inside the circulating exhaust cylinder.

[0006] Further, a waste liquid storage pool is recessed inside the opening of the spray collection box. The waste liquid storage pool is located behind the isolation sedimentation plate. A sewage discharge pipe is provided at the lower edge of the right wall of the spray collection box.

[0007] Further, the obliquely flushing bottom plate is inclined with the front higher than the rear. A lower spray pipe is provided at the front upper edge above the obliquely flushing bottom plate. Spray openings are provided on the pipe wall of the lower spray pipe facing downwards.

[0008] Further, a lower spray pump is fixedly connected to the right end of the obliquely flushing bottom plate. The output end of the lower spray pump is connected to the lower spray pipe. The inlet of the lower spray pump and the inlet of the atomization water pump are jointly connected to a water supply system through a pipeline.

[0009] Further, a docking partition is fixedly connected inside the activated carbon adsorption box. A docking wedge opening is penetrated through the docking partition. A docking insertion pipe is fixedly connected above the docking wedge opening. An upper installation opening is provided at the top of the activated carbon adsorption box.

[0010] Further, an exhaust gas inlet is provided at the lower edge of the circulating exhaust cylinder. A purified gas outlet is provided in the middle part of the circulating exhaust cylinder. The purified gas outlet is located above the docking partition. A partition partition is fixedly connected at the middle part inside the circulating exhaust cylinder.

[0011] Further, the upper installation opening is threadedly connected to an activated carbon purification filter cylinder. The bottom of the activated carbon purification filter cylinder is tightly inserted inside the docking insertion pipe. An activated carbon layer is arranged inside the wall of the activated carbon purification filter cylinder. The activated carbon purification filter cylinder is located inside the activated carbon adsorption box.

[0012] Further, an inner plug block is provided below the docking partition plate. The inner plug block is fitted with the inner edge of the docking wedge opening. A plug block socket is fixedly connected below the inner plug block, and a plug block tension spring is fixedly connected between the plug block socket and the docking partition plate.

[0013] Further, a self-sealing sleeve is fixedly connected above the inner plug block. The self-sealing sleeve is movably connected inside the docking insertion tube, and a sleeve through opening is provided at the lower edge of the self-sealing sleeve.

[0014] Further, a flow collecting scraper made of rubber is provided in front of the isolation sedimentation plate. The front edge of the flow collecting scraper is fitted with the sedimentation rotating column, and the flow collecting scraper is bent to be provided with a flow collecting folding groove.

[0015] The present invention provides an environmental protection rectification waste gas purification system for an automobile interior parts painting production line, which has the following beneficial effects: The waste gas purification system in the present invention is used for the spraying operation of automobile interior parts. The automobile interior parts are located in front of the spray collection box for painting and spraying. The paint is sprayed in a mist form towards the workpiece under the pressure of the spraying tool and adheres to the surface of the workpiece to condense into a coating. The paint that does not contact the workpiece is sprayed towards the rotating sedimentation rotating column. Water mist is sprayed onto the surface of the sedimentation rotating column through the atomizing nozzle, so that the paint is incorporated into the water layer on the outer surface of the sedimentation rotating column, and rotates with the sedimentation rotating column to the rear of it, and is scraped by the flow collecting scraper and concentrated to flow downward along the flow collecting folding groove, which can reduce the contact area and contact time between the paint and the air, reduce the volatilization amount of the paint during the downward flow with the water flow, and can further reduce the volatilization amount of harmful gases during the paint collection process without changing the water consumption, and is more suitable for spraying operations with a large spraying amount.

[0016] In addition, through the action of the axial flow fan, a negative pressure is generated in the area behind the isolation sedimentation plate inside the spray collection box, so that the air in the space in front of the isolation sedimentation plate during the spraying process enters the area behind the isolation sedimentation plate through the bottom gap, and part of the harmful gases volatilized during the paint recovery process enters the interior of the spray collection box along with the air flow, further reducing the leakage of harmful substances. Under the guiding action of the axial flow fan, the waste gas enters the bottom of the circulating exhaust cylinder, enters the bottom of the activated carbon adsorption box through the waste gas inlet, and enters the activated carbon purification filter cylinder through the docking wedge opening. During the process of passing through the wall of the activated carbon purification filter cylinder, the waste gas absorbs harmful volatile substances through the activated carbon, improving the purity of the air flowing out of the activated carbon purification filter cylinder, and enabling the filtered air to enter the upper part of the activated carbon adsorption box and be discharged through the clean air outlet and the axial flow fan, realizing further adsorption and purification of the spraying waste gas.

[0017] In addition, the installation structure of the activated carbon purification filter cartridge is improved. During the process of replacing the activated carbon purification filter cartridge, when the activated carbon purification filter cartridge is pulled out, the air inlet for installing the activated carbon purification filter cartridge is automatically closed to avoid waste gas leakage. During the process of inserting the activated carbon purification filter cartridge, the air inlet is automatically connected. It is possible to replace the activated carbon purification filter cartridge during the operation of the machine without causing a large amount of leakage of harmful gases. When maintaining the activated carbon adsorption box, there is no need to stop the machine, and the maintenance is convenient without affecting the production progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0019] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0020] In the drawings: Figure 1 A schematic diagram showing the overall structure of the present application is shown; Figure 2 A schematic diagram showing the internal structure of the activated carbon adsorption box of the present application is shown; Figure 3 A schematic diagram showing the internal structure of the spray collection box of the present application is shown; Figure 4 A schematic diagram showing the present application Figure 3 is shown in a left view structure; Figure 5 A schematic diagram showing the structure of the present application when the sedimentation rotating column is separated from the isolation sedimentation plate is shown; Figure 6 A schematic diagram showing the present application Figure 5 is shown in a rear view structure; Figure 7 A schematic diagram showing the structure of the present application in a state where the activated carbon purification filter cartridge is pulled out is shown; Figure 8 A schematic diagram showing the structure of the internal plug of the present application is shown; Figure 9 A schematic diagram showing the Figure 3 is shown in a partial enlarged structure at A in the present application; Figure 10 A schematic diagram showing the Figure 6 is shown in a partial enlarged structure at B in the present application; Figure 11 A schematic diagram showing the Figure 7 is shown in a partial enlarged structure at C in the present application; Figure 12 A schematic diagram showing the Figure 7 is shown in a partial enlarged structure at D in the present application.

[0021] Reference numerals: 1. Spray collection tank; 101. Oblique impact bottom plate; 102. Lower spray pipe; 103. Lower spray pump; 104. Waste liquid storage tank; 105. Connecting air port; 106. Sewage discharge pipe; 2. Isolation sedimentation plate; 201. Flow collection scraper; 202. Flow collection folding groove; 203. Isolation support plate; 3. Sedimentation rotating column; 301. Rotation drive motor; 4. Atomizing spray pipe; 401. Spray pipe shunt pipe; 402. Atomizing water pump; 5. Activated carbon adsorption box; 501. Connecting inlet; 502. Docking partition; 503. Docking wedge; 504. Docking insertion pipe; 505. Upper mounting port; 6. Circulation exhaust cylinder; 601. Exhaust gas inlet; 602. Clean gas outlet; 603. Partition board; 7. Axial flow fan; 8. Inner plug; 801. Plug seat; 802. Plug pull spring; 803. Self-sealing sleeve; 804. Sleeve through hole; 9. Activated carbon purification filter cartridge. Detailed implementation mode

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments 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 some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1 to 12 : The present invention provides an environmental protection rectification waste gas purification system for an automobile interior part painting production line, including: a spray collection box 1 and an isolation sedimentation plate 2. The upper surface of the front opening of the spray collection box 1 is fixedly connected to the upper edge of the isolation sedimentation plate 2. There is a gap between the lower edge of the isolation sedimentation plate 2 and the lower edge of the opening of the spray collection box 1. An isolation support plate 203 is provided at the upper edge of the isolation sedimentation plate 2. A sedimentation rotating column 3 is rotatably connected below the isolation support plate 203. Adjacent sedimentation rotating columns 3 are connected by a transmission belt. A rubber material flow collection scraper 201 is provided in front of the isolation sedimentation plate 2. The front edge of the flow collection scraper 201 is in contact with the sedimentation rotating column 3. The flow collection scraper 201 is bent to form a flow collection groove 202. A rotation drive motor 301 is installed on the right side of the spray collection box 1. The rotation drive motor 301 drives the sedimentation rotating column 3 through a transmission belt. A atomizing water pump 402 is provided on the right surface of the spray collection box 1. An atomizing spray pipe 4 is provided behind the gap between adjacent sedimentation rotating columns 3. The upper end of the atomizing spray pipe 4 is fixedly connected to the isolation support plate 203. Atomizing nozzles are provided at the rear and side of the atomizing spray pipe 4. The upper end of the atomizing spray pipe 4 is connected to a spray pipe shunt pipe 401. The spray pipe shunt pipe 401 is fixedly connected to the output end of the atomizing water pump 402. An inclined flow bottom plate 101 is fixedly connected to the bottom of the front opening of the spray collection box 1. An activated carbon adsorption box 5 is installed above the spray collection box 1. A communication inlet 501 connected to a communication air port 105 is opened at the center of the bottom of the activated carbon adsorption box 5. A circulating exhaust cylinder 6 is provided inside the activated carbon adsorption box 5. An axial flow fan 7 is provided inside the circulating exhaust cylinder 6; during the spraying operation, the workpiece is located inside the front opening of the spray collection box 1. The rotation drive motor 301 drives all the sedimentation rotating columns 3 to rotate counterclockwise, and the atomizing water pump 402 inputs high-pressure water flow into the atomizing spray pipe 4, and sprays the water through the nozzles onto the surfaces of the isolation sedimentation plate 2 and the sedimentation rotating column 3, so that the surface of the sedimentation rotating column 3 is covered with a water layer. During the spraying process, the paint that does not contact the workpiece flows to the outer surface of the sedimentation rotating column 3 and merges with the water layer, and is transferred to the rear of the sedimentation rotating column 3 as the sedimentation rotating column 3 rotates. Under the action of the flow collection scraper 201, the water and paint on the surface are scraped off and concentrated into the flow collection groove 202 as the sedimentation rotating column 3 rotates, and flows downward into the waste liquid storage pool 104 along the flow collection groove 202. In this process, the contact area and contact time between the paint and the air are reduced, and the volatilization amount of the paint during the downward flow with the water is reduced.

[0024] In an embodiment of the present disclosure, a waste liquid storage pool 104 is recessed inside the opening of the spray collection box 1. The waste liquid storage pool 104 is located behind the isolation sedimentation plate 2. The waste water generated by the recovery of the sprayed coating is centralized through the waste liquid storage pool 104, and the waste water can be precipitated through the waste liquid storage pool 104. A cleaning door is provided on the right side of the spray collection box 1. Opening the cleaning door can further separate or treat the stratified waste water in the waste liquid storage pool 104. A sewage discharge pipe 106 is provided at the lower edge of the right wall of the spray collection box 1, and a valve is provided on the sewage discharge pipe 106. The waste water stored inside the waste liquid storage pool 104 is transferred through the sewage discharge pipe 106; the inclined flow bottom plate 101 is inclined with the front higher than the rear. The front edge above the inclined flow bottom plate 101 is provided with a lower spray pipe 102. The pipe wall of the lower spray pipe 102 is provided with spray nozzles facing downwards. The right end of the inclined flow bottom plate 101 is fixedly connected with a lower spray pump 103. The output end of the lower spray pump 103 is connected to the lower spray pipe 102, and the inlet of the lower spray pump 103 and the inlet of the atomizing water pump 402 are jointly connected to the water supply system through a pipeline; water is supplied to the lower spray pipe 102 through the lower spray pump 103, and the water is sprayed into the inclined flow bottom plate 101 through the lower spray pipe 102 to wash away the sprayed coating that has fallen on the inclined flow bottom plate 101.

[0025] In an embodiment of the present disclosure, a docking partition 502 is fixedly connected inside the activated carbon adsorption box 5. The internal space of the activated carbon adsorption box 5 is partitioned through the docking partition 502. A docking wedge opening 503 is penetrated through the docking partition 502. A docking insertion pipe 504 is fixedly connected above the docking wedge opening 503. An upper installation opening 505 is provided at the top of the activated carbon adsorption box 5. An exhaust gas inlet 601 is provided at the lower edge of the circulating exhaust gas cylinder 6, and a clean gas outlet 602 is provided in the middle part of the circulating exhaust gas cylinder 6. The clean gas outlet 602 is located above the docking partition 502. A partition plate 603 is fixedly connected at the middle part inside the circulating exhaust gas cylinder 6; the area below the partition plate 603 and the area below the docking partition 502 are exhaust gas areas, which are connected to the inside of the activated carbon purification filter cylinder 9. The area above the partition plate 603 and the area above the docking partition 502 are clean gas areas, which are connected to the outer surface of the activated carbon purification filter cylinder 9. Under the guiding action of the axial flow fan 7, the air is guided. Under the guiding action of the axial flow fan 7, the exhaust gas enters the bottom of the circulating exhaust gas cylinder 6, enters the bottom inside the activated carbon adsorption box 5 through the exhaust gas inlet 601, and enters the activated carbon purification filter cylinder 9 through the docking wedge opening 503. During the process of passing through the wall of the activated carbon purification filter cylinder 9, the exhaust gas absorbs harmful volatile substances through the activated carbon, improving the purity of the air flowing out of the activated carbon purification filter cylinder 9, enabling the filtered air to enter the upper part inside the activated carbon adsorption box 5, and being discharged through the clean gas outlet 602 and the axial flow fan 7, realizing further adsorption and purification of the sprayed exhaust gas.

[0026] Embodiment 2, on the basis of Embodiment 1, the upper mounting port 505 is spirally connected to the activated carbon purification filter cylinder 9. The bottom of the activated carbon purification filter cylinder 9 is tightly inserted into the inside of the docking insertion tube 504. An activated carbon layer is arranged inside the cylinder wall of the activated carbon purification filter cylinder 9. The activated carbon purification filter cylinder 9 is located inside the activated carbon adsorption box 5. An inner plug 8 is arranged below the docking partition plate 502. The inner plug 8 fits with the inner edge of the docking wedge opening 503. A plug connection seat 801 is fixedly connected below the inner plug 8. A plug pull spring 802 is fixedly connected between the plug connection seat 801 and the docking partition plate 502. An auto-sealing sleeve 803 is fixedly connected above the inner plug 8. The auto-sealing sleeve 803 is movably connected inside the docking insertion tube 504. A sleeve through opening 804 is opened at the lower edge of the auto-sealing sleeve 803. In the fixed installation state of the activated carbon purification filter cylinder 9, the lower end of the activated carbon purification filter cylinder 9 fits with the upper end of the auto-sealing sleeve 803, separating the inner plug 8 from the docking wedge opening 503. The air below the docking partition plate 502 can enter the inside of the activated carbon purification filter cylinder 9 through the docking wedge opening 503 and the sleeve through opening 804, allowing the air to pass through the activated carbon purification filter cylinder 9 to adsorb harmful substances and particles in the air through the activated carbon purification filter cylinder 9. When replacing the activated carbon purification filter cylinder 9, rotate and disassemble and pull out the activated carbon purification filter cylinder 9. The inner plug 8 moves upward under the action of the plug pull spring 802 to block the docking wedge opening 503, and the air inlet for installing the activated carbon purification filter cylinder 9 is automatically closed to avoid waste gas leakage. During the process of inserting the activated carbon purification filter cylinder 9, the activated carbon purification filter cylinder 9 moves downward to push the inner plug 8 downward, automatically connecting the air inlet. The activated carbon purification filter cylinder 9 can be replaced during the startup and operation process without causing a large amount of leakage of harmful gases. The activated carbon purification filter cylinder 9 can be replaced when the purification system is operating normally without shutting down the machine.

[0027] Working principle of this embodiment: First, place the automotive interior part in front of the opening of the spray collection tank 1 and above the inclined flow bottom plate 101 through a hanging rack, a conveying device or a manipulator. Start the rotary drive motor 301, and drive all the sedimentation rotating columns 3 to rotate counterclockwise through the rotary drive motor 301 and multiple belt drives. Start the lower spray pump 103 and the atomizing water pump 402. Convey the water flow to the atomizing spray pipe 4 through the atomizing water pump 402. Generate water mist through the atomizing nozzles of the atomizing spray pipe 4, so that a water flow layer is formed on the outer surface of the sedimentation rotating column 3. Operate the spraying tool to spray the paint in a mist state under pressure onto the workpiece and adhere to its surface to condense into a coating. The paint that does not contact the workpiece is sprayed onto the rotating sedimentation rotating column 3. Spray water mist onto the surface of the sedimentation rotating column 3 through the atomizing spray pipe 4, so that the paint is incorporated into the water layer on the outer surface of the sedimentation rotating column 3, and rotates to the rear of the sedimentation rotating column 3 along with the rotation of the sedimentation rotating column 3. Under the scraping of the flow collecting scraper 201, it flows downward centrally along the flow collecting groove 202 into the waste liquid storage tank 104 for storage and precipitation, which can reduce the contact area and contact duration between the paint and the air, and reduce the volatilization amount of the paint during the downward flow with the water flow. At the same time, supply water to the lower spray pipe 102 through the lower spray pump 103, and spray the water into the inclined flow bottom plate 101 through the lower spray pipe 102, so as to flush the sprayed paint falling into the inclined flow bottom plate 101 into the waste liquid storage tank 104. Under the guiding action of the axial flow fan 7, the waste gas entering the spray collection tank 1 enters the bottom of the activated carbon adsorption tank 5 through the waste gas inlet 601, and enters the activated carbon purification filter cylinder 9 through the docking wedge 503. During the process of passing through the wall of the activated carbon purification filter cylinder 9, the waste gas absorbs harmful volatile substances through the activated carbon, improving the purity of the air flowing out of the activated carbon purification filter cylinder 9. The filtered air enters the upper part of the activated carbon adsorption tank 5 and is discharged through the clean air outlet 602 and the axial flow fan 7, realizing further adsorption of harmful substances or particles in the spraying waste gas and improving the purification effect of the waste gas.

[0028] In this article, the following points need to be noted: 1. The drawings of the embodiments of this disclosure only relate to the structures involved in the embodiments of this disclosure, and other structures can refer to the general design.

[0029] 2. Without conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0030] The above is only the specific implementation manner of this disclosure, but the protection scope of this disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by this disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of this disclosure. Therefore, the protection scope of this disclosure should be subject to the protection scope of the claims.

Claims

1. Environmental protection exhaust gas purification system for automobile interior parts coating production line, including: A spray collection box (1) and an isolation settling plate (2), characterized in that the upper surface of the front opening of the spray collection box (1) is fixedly connected to the upper edge of the isolation settling plate (2), a gap is provided between the lower edge of the isolation settling plate (2) and the lower edge of the opening of the spray collection box (1), an isolation support plate (203) is provided on the upper edge of the isolation settling plate (2), a settling swirl column (3) is rotatably connected below the isolation support plate (203), adjacent settling swirl columns (3) are connected via a transmission belt, a rotary drive motor (301) is installed on the right side of the spray collection box (1), the rotary drive motor (301) drives the settling swirl column (3) via a transmission belt, an atomizing water pump (402) is provided on the right surface of the spray collection box (1), and adjacent settling swirl columns (3) are spaced apart from each other. An atomizing nozzle (4) is provided at the rear of the gap, the upper end of the atomizing nozzle (4) is fixedly connected to the isolation support plate (203), an atomizing nozzle is provided at the rear and side of the atomizing nozzle (4), the upper end of the atomizing nozzle (4) is connected to the nozzle diverter pipe (401), the nozzle diverter pipe (401) is fixedly connected to the output end of the atomizing water pump (402), the front opening bottom of the spray collection box (1) is fixedly connected to the oblique flushing bottom plate (101), an activated carbon adsorption box (5) is installed above the spray collection box (1), the bottom center of the activated carbon adsorption box (5) is provided with a connecting inlet (501) connected to the connecting air port (105), a circulating exhaust pipe (6) is provided in the activated carbon adsorption box (5), and an axial flow fan (7) is provided in the circulating exhaust pipe (6).

2. The environmental protection waste gas purification system of the automobile interior decoration parts coating production line according to claim 1 is characterized in that: A waste liquid storage tank (104) is provided in a recessed manner inside the opening of the spray collection box (1). The waste liquid storage tank (104) is located behind the isolation sinker plate (2). A sewage discharge pipe (106) is provided at the lower edge of the right wall of the spray collection box (1).

3. The environmental protection waste gas purification system of the automobile interior decoration parts coating production line according to claim 1 is characterized in that: The oblique flushing bottom plate (101) is arranged to be high at the front and low at the rear, and a lower jet pipe (102) is provided at the upper front edge of the oblique flushing bottom plate (101), and a jet port is provided on the pipe wall of the lower jet pipe (102) facing downward.

4. The environmental protection waste gas purification system of the automobile interior decoration parts coating production line according to claim 3 is characterized in that: The right end of the oblique flushing bottom plate (101) is fixedly connected to a lower jet pump (103), the output end of the lower jet pump (103) is connected to a lower jet pipe (102), and the inlet of the lower jet pump (103) and the inlet of the atomizing water pump (402) are connected to a water supply system via a pipeline.

5. The environmental protection waste gas purification system of the automobile interior decoration parts coating production line according to claim 1 is characterized in that: A docking partition (502) is fixedly connected inside the activated carbon adsorption box (5), a docking wedge opening (503) is provided through the docking partition (502), a docking insert (504) is fixedly connected above the docking wedge opening (503), and an upper mounting opening (505) is provided on the top of the activated carbon adsorption box (5).

6. The environmental protection waste gas purification system of the automobile interior decoration parts coating production line according to claim 1 is characterized in that: An exhaust gas inlet (601) is provided at the lower edge of the circulating exhaust chimney (6), a clean gas outlet (602) is provided in the middle portion of the circulating exhaust chimney (6), and the clean gas outlet (602) is located above the docking partition (502). A partition partition (603) is fixedly connected to the middle portion of the circulating exhaust chimney (6).

7. The environmental protection waste gas purification system of the automobile interior decoration parts coating production line according to claim 5 is characterized in that: The upper mounting opening (505) is spirally connected to the activated carbon purification filter cartridge (9); the bottom of the activated carbon purification filter cartridge (9) is tightly inserted into the interior of the docking plug tube (504); an activated carbon layer is arranged inside the wall of the activated carbon purification filter cartridge (9); and the activated carbon purification filter cartridge (9) is located inside the activated carbon adsorption box (5).

8. The environmental protection waste gas purification system of the automobile interior decoration parts coating production line according to claim 7 is characterized in that: An inner block (8) is provided below the docking partition (502), the inner block (8) is fitted with the inner edge of the docking wedge (503), a block receiving seat (801) is fixedly connected below the inner block (8), and a block tension spring (802) is fixedly connected between the block receiving seat (801) and the docking partition (502).

9. The environmental protection waste gas purification system of the automobile interior decoration parts coating production line according to claim 8 is characterized in that: A self-sealing sleeve (803) is fixedly connected to the top of the inner block (8), and the self-sealing sleeve (803) is movably connected to the inside of the docking plug (504). A sleeve opening (804) is provided at the lower edge of the self-sealing sleeve (803).

10. The environmental protection waste gas purification system of the automobile interior decoration parts coating production line according to claim 1 is characterized in that: A current collecting scraper (201) made of rubber is provided in front of the isolation settling plate (2); the front edge of the current collecting scraper (201) is in contact with the settling swirl column (3); and the current collecting scraper (201) is bent to form a current collecting folding groove (202).

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