Environment-friendly quick-dry paint mist recovery system for automobile repair paint spraying

Abstract

The invention provides an environment-friendly quick-drying paint mist recovery system for automobile repair paint spraying, and relates to the technical field of paint mist recovery. The environment-friendly quick-drying paint mist recycling system for automobile repair paint spraying comprises a paint spraying chamber, a fan, a spraying device, a circulating water system, a paint mist coagulant adding device, a paint mist settling pond or water tank, a filtering system, a slag removing device and a purified air discharging device, and a water curtain, a water curtain or a water rotating device is arranged in the paint spraying chamber and can capture paint mist; an air suction opening is formed in the front end of the fan, air containing paint mist is sucked into the system, the spraying device is arranged in the system and comprises a spraying pipe and a spraying head, and water or other liquid is sprayed through the spraying head. According to the paint mist purification device, the paint mist purification efficiency is high, paint mist particles with various particle sizes can be effectively captured, especially the treatment effect on fine paint mist is good, the paint mist purification efficiency can generally reach 90% or above, continuous operation can be achieved, and the paint mist purification device is suitable for large-scale paint spraying operation.

Description

Technical Field

[0001] The present invention relates to the technical field of paint mist recovery, and specifically to an environment-friendly and quick-drying paint mist recovery system for automobile repair painting. Background Art

[0002] With the increasing global emphasis on environmental protection, governments of various countries have successively introduced more stringent environmental protection regulations and emission standards. In the automobile repair industry, paint mist and organic waste gas generated during the painting process have become the key objects of supervision.

[0003] The paint mist contains a large amount of organic solvents and harmful substances, such as benzene, toluene, xylene, etc. Long-term exposure to such an environment will cause serious harm to the physical health of automobile repair workers, such as damaging the respiratory system, nervous system, etc. At the same time, the paint mist diffuses in the workshop, which may also trigger safety accidents such as fires, threatening the safety of personnel and property. In order to ensure the health and safety of workers, automobile repair enterprises need to adopt an effective paint mist recovery system to improve the working environment.

[0004] The competition in the automobile repair industry is becoming increasingly fierce, and enterprises need to continuously improve service quality and efficiency. Traditional paint mist treatment methods, such as simple ventilation or inefficient recovery devices, not only cannot meet the environmental protection requirements, but also cause paint waste and increase costs.

[0005] Therefore, technical personnel in this field have provided an environment-friendly and quick-drying paint mist recovery system for automobile repair painting to solve the problems raised in the above background art. Summary of the Invention

[0006] (1) Technical Problems to be Solved

[0007] In view of the deficiencies of the prior art, the present invention provides an environment-friendly and quick-drying paint mist recovery system for automobile repair painting, which solves the problems that traditional paint mist treatment methods, such as simple ventilation or inefficient recovery devices, not only cannot meet the environmental protection requirements, but also cause paint waste and increase costs.

[0008] (2) Technical Solutions

[0009] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0010] An environment-friendly and quick-drying paint mist recovery system for automobile repair painting, comprising a painting booth, a fan, a spraying device, a circulating water system, a paint mist coagulant adding device, a paint mist sedimentation tank or water tank, a filtration system, a slag removal device, and a purified air discharge device, characterized in that,

[0011] Inside the spray booth, there is a water curtain, water spray curtain or water swirl device, which can capture paint mist. At the front end of the fan, there is an air suction port to suck the air containing paint mist into the system. The spraying device is arranged inside the system and includes a spray pipe and a spray head. Water or other liquids are sprayed through the spray head to make contact with the paint mist. The sprayed liquid can adsorb paint mist particles. The circulating water system includes a circulating water pump, a water pipeline and a water tank. The water pipeline is connected to the spray pipe and the spray head. The circulating water pump pumps out the water in the water tank and transports it to the spray head or the water spray curtain device to form a water curtain or a water spray curtain. Then the water returns to the water tank with the paint mist, realizing the recycling of water;

[0012] The paint mist coagulant adding device consists of a reagent storage tank and a metering pump. The paint mist coagulant inside the reagent storage tank is added into the circulating water through the metering pump. The metering pump can accurately control the adding amount of the coagulant according to needs. The paint mist settling tank or water tank is filled with water. When the paint mist contacts the water, the particles will settle to the bottom of the tank, forming wet paint mist;

[0013] The filtration system includes a filter. The air flow after passing through the water tank continues to pass through a further filter to remove residual fine particles and solvents. The slag removal device includes a scraper, a filter bag and a centrifuge, which are used to clean out the paint slag deposited at the bottom of the water tank or floating on the water surface to prevent the accumulation of paint slag in the water from affecting the normal operation of the system. The purified air discharge device includes a discharge pipeline and an exhaust fan. The purified air is discharged into the atmosphere through a special discharge pipeline and an exhaust fan. An exhaust gas detection device is arranged on the discharge pipeline, which can detect the air quality to ensure that the discharged air quality meets the environmental protection standards.

[0014] Furthermore, a pre-filter, an air filter and a paint mist recovery device are also arranged inside the spray booth, which are used to filter dust, oil mist impurities in the air to ensure clean air. The air flow is maintained by an efficient ventilation system. Usually, a horizontal or vertical air flow design is adopted to quickly discharge the paint mist and harmful gases.

[0015] Furthermore, the spray booth is also equipped with an air circulation system, which can filter and purify harmful substances in the air to prevent the coating from polluting the external environment of the working area.

[0016] Furthermore, the spraying device can adopt a pressure type spraying device or an air flow type spraying device. The pressure type spraying device pushes the liquid to the spray head through the pressure generated by a water pump. The spray head disperses the liquid into mist droplets through its small aperture. The air flow type spraying device atomizes the liquid by using air flow equipment such as compressed air or a fan. The air flow atomizes the liquid into tiny water droplets and then sprays them to the required area.

[0017] Furthermore, the paint mist coagulant adding device also includes a mixing device, a reaction zone, a precipitation and separation device, and a monitoring and alarm terminal;

[0018] After the coagulant in the mixing device is added to the paint mist treatment system, it needs to be fully mixed with water flow or paint mist through the mixing device to ensure that the coagulant can be evenly distributed and react with paint mist particles quickly;

[0019] The reaction zone is set as a section of reaction tank, and the mixed coagulant reacts with paint mist particles, causing the paint mist particles to aggregate into larger particles;

[0020] The precipitation and separation device uses gravity or water flow to help the particles settle, so that the aggregated paint mist particles are removed by precipitation and filtration;

[0021] The monitoring and alarm terminal is equipped with a water quality monitoring system (such as pH value, turbidity, coagulant concentration, etc.) to ensure that the use of coagulant will not cause over-addition or water quality problems. If any abnormality is detected, the system will automatically alarm or adjust the addition amount.

[0022] Furthermore, the paint mist sedimentation tank consists of a tank body structure, an inlet, a drain, a sedimentation area, a sludge discharge system, and a water level control and overflow device. The tank body structure is usually set as a rectangular or circular structure. The size of the tank body is designed according to the workshop scale and the paint mist treatment volume. The material of the tank body generally adopts anti-corrosion materials. The inlet is the place where the paint mist water flow enters the sedimentation tank, usually set above the tank body. The drain is used to discharge the settled clear water, usually set below the tank body. The sedimentation area is set inside the sedimentation tank, with a sedimentation area having a relatively large space. After the water flow slows down, the paint mist particles settle to the bottom of the tank due to gravity. The sludge discharge system is used to regularly clean the deposited paint mist particles and other sediments. The sludge discharge equipment can adopt mechanical or automatic control to ensure that the sediments are removed regularly and keep the water quality in the tank clean. The water level control and overflow device is used to control the water level of the sedimentation tank to avoid the water level being too high or too low, and an overflow port is set at the top of the tank body. When the water level exceeds a certain height, the excess water will be discharged through the overflow port to prevent overflow and pollution of the environment.

[0023] Furthermore, the filtration system includes a primary filtration module, a medium-efficiency filtration module, a high-efficiency filtration module, an activated carbon filtration module, and an electrostatic filtration module;

[0024] The primary filtration module is mainly used to remove large-particle paint mist and dust. The commonly used filter materials include metal mesh or coarse filter cotton, which can effectively intercept larger particles and protect the subsequent filters;

[0025] The medium-efficiency filtration module is usually used to further remove medium-sized particles. Common filter media include non-woven fabric and paper filter elements. At this stage, most of the paint mist and fine particles can be effectively captured, improving the working efficiency of the subsequent filters;

[0026] The high-efficiency filtration module can effectively filter out tiny paint mist particles, achieving a relatively high filtration accuracy;

[0027] The activated carbon filtration module is used to adsorb volatile organic compounds, such as harmful gases in solvents and paints. The surface of the activated carbon has a strong adsorption capacity, which can remove the peculiar smell and harmful gases generated during the painting process, ensuring fresh air;

[0028] The electrostatic filtration module uses the principle of static electricity to adsorb the fine paint mist particles generated during the painting process. This type of filter can improve the filtration efficiency and reduce the loss of ordinary filters when capturing fine particles.

[0029] Furthermore, the slag removal device includes a sedimentation type slag removal device, a centrifugal separator, a coarse filter screen / cartridge, an impact separator, and a pneumatic slag removal device;

[0030] For the sedimentation type slag removal device, when the paint mist airflow passes through the sedimentation chamber, the heavier paint mist particles settle to the bottom under the action of gravity, thus separating from the airflow. The precipitated particles are regularly cleaned;

[0031] For the centrifugal separator, by rotating to generate centrifugal force, the heavier paint mist particles are thrown to the outer wall and separated from the airflow. These separated particles will fall into the collection container;

[0032] For the coarse filter screen / cartridge, the coarse filter screen or cartridge intercepts large paint mist particles on its surface through the physical interception principle, preventing them from entering the subsequent filtration system;

[0033] For the impact separator, by making the airflow collide with obstacles, the paint mist particles are forced to lose their kinetic energy and finally settle or be filtered out;

[0034] For the pneumatic slag removal device, when the airflow passes through a specially designed pneumatic device, the larger paint mist particles are separated due to inertia and settle into the collector.

[0035] Furthermore, the purified air discharge device further includes a multi-stage air purification system, an exhaust pipe, and an emission monitoring module;

[0036] The multi-stage air purification system combines multiple technologies, such as activated carbon adsorption, HEPA filtration, and plasma purification, to provide a comprehensive air purification effect. These technologies can effectively remove different types of pollutants;

[0037] The exhaust pipe and the emission monitoring module discharge the treated air to the outside through a specially designed exhaust pipe. The exhaust system needs to be regularly inspected and maintained to ensure that the pipe is unobstructed and the emissions meet the environmental protection standards.

[0038] (III) Beneficial effects

[0039] The present invention provides an environmentally friendly quick-drying paint mist recovery system for auto repair painting. It has the following beneficial effects:

[0040] 1. The present invention provides an environmentally friendly quick-drying paint mist recovery system for auto repair painting, which has high paint mist purification efficiency and can effectively capture paint mist particles of various particle sizes, especially for fine paint mist. The paint mist purification efficiency can usually reach more than 90%, and it can operate continuously, which is suitable for large-scale painting operations.

[0041] 2. The present invention provides an environmentally friendly quick-drying paint mist recovery system for auto repair painting. Since there is a large amount of water in the system, it can effectively reduce the fire risk generated during the painting process and improve the safety of the workplace.

[0042] 3. The present invention provides an environmentally friendly quick-drying paint mist recovery system for auto repair painting. Compared with the traditional dry paint mist recovery system, the wet system can better adsorb fine particles during the filtration process and reduce the emission of volatile organic compounds, which meets environmental protection requirements. It also adopts advanced design and can provide efficient paint mist removal effect with lower energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a structural block diagram of the environmentally friendly quick-drying paint mist recovery system for auto repair spray painting of the present invention;

[0044] Figure 2 This is a schematic diagram of the structural composition of the paint mist coagulant adding device of the present invention;

[0045] Figure 3 It is a schematic diagram of the structural composition of the paint mist settling tank of the present invention;

[0046] Figure 4 It is a schematic diagram of the structure of the filtration system of the present invention;

[0047] Figure 5 It is a schematic diagram of the structural composition of the slag removal device of the present invention. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the specific embodiments of the present invention to clearly and completely describe the technical solutions in the specific embodiments of the present invention. Obviously, the specific embodiments described are only part of the specific embodiments of the present invention, not all of the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example:

[0050] like Figures 1-5As shown in the figure, the embodiment of the present invention provides an environment-friendly and quick-drying paint mist recovery system for auto repair painting, which includes a painting booth, a fan, a spraying device, a circulating water system, a paint mist coagulant adding device, a paint mist sedimentation tank or sink, a filtration system, a slag removal device, and a purified air discharge device, and is characterized in that,

[0051] Inside the painting booth, a water curtain, a water spray curtain or a water swirl device is provided, which can capture paint mist. An air suction port is provided at the front end of the fan to suck the air containing paint mist into the system. The spraying device is arranged inside the system and includes a spray pipe and a spray head. Water or other liquids are sprayed through the spray head to contact the paint mist, and the sprayed liquid can adsorb paint mist particles. The circulating water system includes a circulating water pump, a water pipeline, and a water tank. The water pipeline is connected to the spray pipe and the spray head. The circulating water pump pumps out the water in the water tank and transports it to the spray head or the water curtain device to form a water curtain or a water spray curtain. Then the water returns to the water tank with the paint mist, realizing the recycling of water;

[0052] The paint mist coagulant adding device consists of a reagent storage tank and a metering pump. The paint mist coagulant inside the reagent storage tank is added into the circulating water through the metering pump. The metering pump precisely controls the addition amount of the coagulant according to needs. The paint mist sedimentation tank or sink is filled with water. When the paint mist contacts the water, the particles will settle to the bottom of the pool, forming wet paint mist;

[0053] The filtration system includes a filter. The air flow after passing through the pool continues to pass through a further filter to remove residual fine particles and solvents. The slag removal device includes a scraper, a filter bag, and a centrifuge, which are used to clean out the paint slag deposited at the bottom of the pool or floating on the water surface, preventing the accumulation of paint slag in the water from affecting the normal operation of the system. The purified air discharge device includes a discharge pipeline and an exhaust fan. The purified air is discharged into the atmosphere through a special discharge pipeline and an exhaust fan. An exhaust gas detection device is provided on the discharge pipeline, which can detect the air quality to ensure that the discharged air quality meets the environmental protection standards.

[0054] Inside the painting booth, a pre-filter, an air filter, and a paint mist recovery device are also provided, which are used to filter dust, oil mist impurities in the air, ensure the air cleanliness, and keep the air flowing through an efficient ventilation system. Usually, a horizontal or vertical air flow design is adopted to quickly discharge the paint mist and harmful gases.

[0055] The painting booth is also equipped with an air circulation system, which can filter and purify the harmful substances in the air to prevent the paint from polluting the external environment of the work area.

[0056] The spray device can adopt a pressure-type spray device or an air-flow type spray device. The pressure-type spray device pushes the liquid to the nozzle through the pressure generated by a water pump, and the nozzle disperses the liquid into mist droplets through its small aperture. The air-flow type spray device atomizes the liquid by using air-flow equipment such as compressed air or a blower. The air-flow atomizes the liquid into tiny water droplets and then sprays them onto the required area.

[0057] The paint mist coagulant adding device further includes a mixing device, a reaction zone, a precipitation and separation device, and a monitoring and alarm terminal;

[0058] After the coagulant in the mixing device is added to the paint mist treatment system, it needs to be fully mixed with water flow or paint mist through the mixing device to ensure that the coagulant can be evenly distributed and quickly react with the paint mist particles;

[0059] The reaction zone is set as a section of reaction tank. The mixed coagulant reacts with the paint mist particles, causing the paint mist particles to aggregate into larger particles;

[0060] The precipitation and separation device uses gravity or water flow to help the particles settle, so that the aggregated paint mist particles are removed by precipitation and filtration;

[0061] The monitoring and alarm terminal is equipped with a water quality monitoring system (such as pH value, turbidity, coagulant concentration, etc.) to ensure that the use of the coagulant will not cause over-addition or water quality problems. If an abnormality is detected, the system will automatically alarm or adjust the addition amount.

[0062] The paint mist sedimentation tank consists of a tank body structure, an inlet, a drain, a sedimentation area, a sludge discharge system, and a water level control and overflow device. The tank body structure is usually set as a rectangular or circular structure. The size of the tank body is designed according to the workshop scale and the paint mist treatment volume. The material of the tank body generally uses anti-corrosion materials. The inlet is the place where the paint mist water flow enters the sedimentation tank, usually set above the tank body. The drain is used to discharge the settled clear water, usually set below the tank body. The sedimentation area is set inside the sedimentation tank, with a relatively large space for sedimentation. After the water flow slows down, the paint mist particles settle to the bottom of the tank due to gravity. The sludge discharge system is used to regularly clean the deposited paint mist particles and other sediments. The sludge discharge equipment can adopt mechanical or automatic control to ensure that the sediments are removed regularly and keep the water quality in the tank clean. The water level control and overflow device is used to control the water level of the sedimentation tank to avoid the water level being too high or too low, and an overflow port is set at the top of the tank body. When the water level exceeds a certain height, the excess water will be discharged through the overflow port to prevent overflow and pollution of the environment.

[0063] The filtration system includes a primary filtration module, a medium-efficiency filtration module, a high-efficiency filtration module, an activated carbon filtration module, and an electrostatic filtration module;

[0064] The primary filtration module is mainly used to remove large - sized paint mists and dust. Commonly used filter materials include metal meshes or coarse filter cotton, which can effectively intercept larger particulate matters and protect the subsequent filters;

[0065] The intermediate - efficiency filtration module is usually used to further remove medium - sized particles. Common filtration media include non - woven fabrics and paper filter elements. At this stage, most of the paint mists and fine particles can be effectively captured, improving the working efficiency of the subsequent filters;

[0066] The high - efficiency filtration module can effectively filter out tiny paint mist particles, achieving a high filtration accuracy;

[0067] The activated - carbon filtration module is used to adsorb volatile organic compounds, such as solvents and harmful gases in paints. The surface of activated carbon has a strong adsorption capacity, which can remove the odors and harmful gases generated during the painting process, ensuring fresh air;

[0068] The electrostatic filtration module uses the principle of static electricity to adsorb fine paint mist particles generated during the painting process. This type of filter can improve the filtration efficiency and reduce the loss of ordinary filters when capturing fine particles.

[0069] The slag - removal devices include sedimentation - type slag - removal devices, centrifugal separators, coarse filter meshes / filter cartridges, impact separators, and pneumatic slag - removal devices;

[0070] For the sedimentation - type slag - removal device, when the paint mist airflow passes through the sedimentation chamber, the heavier paint mist particles settle to the bottom under the action of gravity, thus separating from the airflow. The precipitated particles are regularly cleaned;

[0071] For the centrifugal separator, by rotating to generate centrifugal force, the heavier paint mist particles are thrown to the outer wall and separated from the airflow. These separated particles will fall into the collection container;

[0072] For the coarse filter mesh / filter cartridge, through the physical interception principle, the large - sized paint mists are intercepted on its surface, preventing them from entering the subsequent filtration system;

[0073] For the impact separator, by making the airflow collide with obstacles, the paint mist particles are forced to lose their kinetic energy and finally settle or be filtered out;

[0074] For the pneumatic slag - removal device, when the airflow passes through a specially designed pneumatic device, the larger paint mist particles are separated due to inertia and settle into the collector.

[0075] The purified air discharge device also includes a multi - stage air purification system, an exhaust pipe, and an emission monitoring module;

[0076] The multi-stage air purification system combines multiple technologies, such as activated carbon adsorption, HEPA filtration, and plasma purification, to provide comprehensive air purification effects. These technologies can effectively remove different types of pollutants;

[0077] The exhaust duct and emission monitoring module discharge the treated air outdoors through a specially designed exhaust duct. The exhaust system needs to be regularly inspected and maintained to ensure the smoothness of the duct and ensure that the emissions meet environmental protection standards.

[0078] In the present invention, the system has a high paint mist purification efficiency and can effectively capture paint mist particles of various particle sizes. In particular, it has a good treatment effect on fine paint mist. The paint mist purification efficiency can usually reach over 90%, and it can operate continuously, making it suitable for large-scale spray painting operations.

[0079] In the present invention, due to the presence of a large amount of water in the system, it can effectively reduce the fire risk generated during the spray painting process and improve the safety of the workplace.

[0080] In the present invention, compared with the traditional dry paint mist recovery system, the wet system can better adsorb fine particles and reduce the emission of volatile organic compounds during the filtration process, meeting environmental protection requirements. And with an advanced design, it can provide high-efficiency paint mist removal effect at lower energy consumption.

[0081] Although the specific embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these specific embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly quick-drying paint mist recovery system for auto repair painting, comprising a paint spraying room, a fan, a spray device, a circulating water system, a paint mist coagulant adding device, a paint mist settling tank or a water tank, a filtering system, a slag removal device and a purified air discharge device, characterized in that: The paint spraying room is provided with a water curtain, a water curtain or a water cyclone device, which can capture paint mist. The front end of the fan is provided with an air suction port, which sucks the air containing paint mist into the system. The spray device is arranged inside the system, including a nozzle and a nozzle, and water or other liquid is sprayed through the nozzle to make it contact with the paint mist. The sprayed liquid can absorb the paint mist particles. The circulating water system includes a circulating water pump, a water pipeline, and a water tank. The water pipeline is connected with the nozzle and the nozzle. The circulating water pump draws water out of the water tank and transports it to the nozzle or the water curtain device to form a water curtain or water curtain. Then the water flows back to the water tank with the paint mist to realize the recycling of water. The paint mist coagulant adding device is composed of a reagent storage tank and a metering pump. The paint mist coagulant in the reagent storage tank is added into the circulating water through the metering pump. The metering pump accurately controls the amount of coagulant added according to the needs. The paint mist settling tank or water tank is filled with water. When the paint mist contacts the water, the particles will settle into the water tank to form wet paint mist. The filtration system includes a filter. The airflow after passing through the water pool continues to pass through a further filter to remove residual tiny particles and solvents. The slag removal device includes a scraper, a filter bag, and a centrifuge to clean out the paint residues settled at the bottom of the water pool or floating on the water surface to prevent the paint residues from accumulating in the water and affecting the normal operation of the system. The purified air discharge device includes a discharge pipe and an exhaust fan. The purified air is discharged into the atmosphere through a special discharge pipe and an exhaust fan. The discharge pipe is provided with an exhaust gas detection device to detect the air quality to ensure that the discharged air quality meets environmental protection standards.

2. The environmentally friendly quick-drying paint mist recovery system for auto repair painting according to claim 1 is characterized in that: The paint spraying room is also equipped with a pre-filter, an air filter and a paint mist recovery device to filter dust, oil mist impurities in the air to ensure clean air. The air flow is maintained through an efficient ventilation system, and horizontal and vertical airflow designs are usually adopted to quickly discharge paint mist and harmful gases.

3. The environmentally friendly quick-drying paint mist recovery system for auto repair painting according to claim 1 is characterized in that: The paint spraying room is also equipped with an air circulation system, which can filter and purify harmful substances in the air to prevent the paint from polluting the external environment of the working area.

4. The environmentally friendly quick-drying paint mist recovery system for auto repair painting according to claim 1 is characterized in that: The spray device can be a pressure-type spray device or an airflow-type spray device. The pressure-type spray device pushes the liquid to the nozzle through the pressure generated by the water pump, and the nozzle disperses the liquid into droplets through its fine aperture. The airflow-type spray device uses compressed air or airflow equipment such as a fan to atomize the liquid. The airflow atomizes the liquid into tiny water droplets, which are then sprayed to the required area.

5. The environmentally friendly quick-drying paint mist recovery system for auto repair painting according to claim 1 is characterized in that: The paint mist coagulant adding device also includes a mixing device, a reaction zone, a precipitation and separation device, and a monitoring and alarm terminal; After the coagulant in the mixing device is added to the paint mist treatment system, it needs to be fully mixed with the water flow or paint mist through the mixing device to ensure that the coagulant can be evenly distributed and quickly react with the paint mist particles; The reaction zone is configured as a reaction tank, where the mixed coagulant reacts with the paint mist particles to aggregate the paint mist particles into larger particles; The sedimentation and separation device uses gravity or water flow to help the particles settle, so that the aggregated paint mist particles are removed by sedimentation and filtration; The monitoring and alarm terminal is equipped with a water quality monitoring system to ensure that the use of coagulants does not lead to excessive addition or water quality problems. If an abnormality is detected, the system will automatically alarm or adjust the addition amount.

6. The environmentally friendly quick-drying paint mist recovery system for auto repair painting according to claim 1 is characterized in that: The paint mist settling tank consists of a tank body structure, a water inlet and a drain, a sedimentation area, a mud discharge system and a water level control and overflow device. The tank body structure is usually set to a rectangular or circular structure. The size of the tank body is designed according to the scale of the workshop and the paint mist processing volume. The material of the tank body is generally anti-corrosion material. The water inlet is the place where the paint mist water flow enters the sedimentation tank, and is usually arranged above the tank body. The drain is used to discharge the clean water after sedimentation, and is usually arranged below the tank body. The sedimentation area is arranged inside the sedimentation tank, and a larger sedimentation area is provided. After the water flow is decelerated, the paint mist particles settle to the bottom of the tank due to gravity. The mud discharge system is used to regularly clean up the deposited paint mist particles and other sediments. The mud discharge equipment can be mechanically or automatically controlled to ensure that the sediment is regularly removed to keep the water quality in the tank clean. The water level control and overflow device is used to control the water level of the sedimentation tank to avoid the water level being too high or too low, and an overflow port is arranged at the top of the tank body. When the water level exceeds a certain height, excess water will be discharged through the overflow port to prevent overflow and pollution of the environment.

7. The environmentally friendly quick-drying paint mist recovery system for auto repair painting according to claim 1 is characterized in that: The filtration system includes a primary filtration module, a medium-efficiency filtration module, a high-efficiency filtration module, an activated carbon filtration module, and an electrostatic filtration module; The primary filter module is mainly used to remove large particles of paint mist and dust. Commonly used filter materials include metal mesh or coarse filter cotton, which can effectively intercept larger particles and protect subsequent filters; The medium-efficiency filtration module is usually used to further remove particles of medium size. Common filter media include non-woven fabrics and paper filter elements. This stage can effectively capture most paint mist and fine particles, improving the working efficiency of subsequent filters. The high-efficiency filtration module can effectively filter out tiny paint mist particles and achieve a high filtration accuracy; The activated carbon filter module is used to absorb volatile organic compounds, such as harmful gases in solvents and paints. The surface of activated carbon has a strong adsorption capacity, which can remove odors and harmful gases generated during the painting process to ensure fresh air. The electrostatic filtration module utilizes the electrostatic principle to absorb fine paint mist particles generated during the painting process. This type of filter can improve filtration efficiency and reduce the loss of ordinary filters when capturing fine particles.

8. The environmentally friendly quick-drying paint mist recovery system for auto repair painting according to claim 1 is characterized in that: The deslagging device includes a sedimentation deslagging device, a centrifugal separator, a coarse filter screen / filter cartridge, an impact separator and a pneumatic deslagging device; Sedimentation type slag removal device, when the paint mist airflow passes through the sedimentation chamber, the heavier paint mist particles settle to the bottom under the action of gravity, thus separating from the airflow, and the settled particles are cleaned regularly; The centrifugal separator generates centrifugal force through rotation, which throws the heavier paint mist particles toward the outer wall and separates them from the air flow. These separated particles will fall into the collection container; Coarse filter / filter cartridge: Coarse filter or filter cartridge intercepts large particles of paint mist on its surface through the principle of physical interception, preventing them from entering the subsequent filtration system; Impact separators, which force paint mist particles to lose kinetic energy by causing the airflow to collide with obstacles, eventually settling or being filtered out; Pneumatic slag removal device: when the airflow passes through the specially designed pneumatic device, the larger paint mist particles are separated due to inertia and settle into the collector.

9. The environmentally friendly quick-drying paint mist recovery system for auto repair painting according to claim 1 is characterized in that: The purified air discharge device also includes a multi-stage air purification system, an exhaust duct and an emission monitoring module; The multi-stage air purification system combines multiple technologies, such as activated carbon adsorption, HEPA filtration, and plasma purification, to provide a comprehensive air purification effect. These technologies can effectively remove different types of pollutants. The exhaust duct and emission monitoring module discharge the treated air to the outside through a specially designed exhaust duct. The exhaust system needs to be inspected and maintained regularly to ensure that the duct is unobstructed and that the emissions meet environmental standards.

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