An exhaust gas treatment device for new energy industrial automobile production

Abstract

The present invention discloses an exhaust gas treatment device for the production of new energy industrial automobiles, specifically relates to the field of exhaust gas treatment technology, including a treatment box, a double-barrel reverse filter group is arranged on the lower side of the inside of the treatment box, an air intake pipe is fixedly connected to the bottom end of the treatment box, a two-way spray assembly is arranged on the upper side of the double-barrel reverse filter group, a self-circulation assembly is arranged on the upper side of the two-way spray assembly, and an air injection assembly is arranged on the upper side of the self-circulation assembly. The present invention firstly intercepts the exhaust gas in layers and disrupts the airflow by rotating the double barrels in the double-barrel reverse filter group in reverse, and then forms a three-dimensional spray field in the upper and lower directions by using the cooperation of the two-way spray assembly and the self-circulation assembly, and cleans the filter layer in the self-circulation assembly, and finally uses the shaking of the air injection assembly to improve the adsorption and interception efficiency of tiny particles, and realizes self-cleaning, so that the treated automobile spray paint exhaust gas can meet the emission standards.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device for production of new energy industrial vehicles. Background Art

[0002] With the vigorous development of the new energy industrial automobile industry, the painting process in automobile production is indispensable. Through painting, not only can the car body be provided with a beautiful and durable protective coating, but also the corrosion resistance and overall appearance quality of the vehicle can be enhanced. However, the painting operation will inevitably produce a large amount of waste gas containing paint mist particles, volatile organic compounds (VOCs) and other pollutants. These waste gases have complex components and contain many pollutants. They are one of the important sources of environmental pollution. If these waste gases are directly discharged, they will not only cause serious air pollution and affect air quality, but also fail to meet the increasingly stringent environmental protection regulations.

[0003] Chinese patent announcement number CN115090067A discloses an exhaust gas treatment device for the production of new energy vehicles, including a base, universal wheels are installed at the four corners of the lower end of the base, a control panel is fixedly installed on the upper surface of the base, a power cord is connected to the control panel, a spray box is arranged in the middle of the upper end of the base, the lower end of the spray box is fixedly connected to the upper surface of the base through a support column, a box door is movably connected to the front side of the spray box, a rubber magnetic strip is arranged at the connection between the box door and the spray box, the bottom surface of the spray box is an inclined structure, a water outlet pipe is arranged on the side with a lower height of the inclined surface of the bottom surface of the spray box, and a spray device is arranged in the spray box. The exhaust gas treatment device for the production of new energy vehicles described in the present invention can effectively solve the problem of low treatment efficiency caused by excessive air flow velocity in the working process of the existing exhaust gas treatment device, and at the same time, the height of the suction hood can be freely adjusted according to the working height, which provides convenience for exhaust gas absorption;

[0004] However, the above device has a relatively simple filtering layer during use, and the filtering layer cannot be self-cleaned, and the overall filtering efficiency is low. Summary of the invention

[0005] The main purpose of the present invention is to provide an exhaust gas treatment device for the production of new energy industrial vehicles, which can effectively solve the problem that the filtering layer is relatively single and cannot achieve self-cleaning of the filtering layer.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] An exhaust gas treatment device for the production of new energy industrial vehicles comprises a treatment box, a double-barrel reverse filter group is arranged on the lower side of the interior of the treatment box, an intake pipe is fixedly connected to the bottom end of the treatment box, an exhaust pipe is fixedly connected to the upper end of the treatment box, a maintenance port is fixedly installed on the outer surface of the treatment box, a support leg is fixedly connected to the bottom end of the treatment box, a two-way spray assembly is arranged on the upper side of the double-barrel reverse filter group, a self-circulation assembly is arranged on the upper side of the two-way spray assembly, and an air injection assembly is arranged on the upper side of the self-circulation assembly.

[0008] Preferably, the double-barrel reverse filter group includes a supporting leg two fixedly connected to the bottom wall of the inner surface of the treatment box, the upper end of the supporting leg two is fixedly connected to a fixed base, both sides of the fixed base are fixedly connected to a fixed base one, the ends of the two fixed base ones away from each other are commonly fixedly connected to the inner surface of the treatment box, a motor is fixedly installed at the bottom end of the treatment box, the upper end of the fixed base is rotatably connected to two gears one, the lower end of the front gear one is fixedly connected to the output end of the motor, the outer surfaces of the two gears one are commonly meshed with an inner gear ring, the upper end of the inner gear ring is fixedly connected to an outer filter cartridge, the lower end of the inner gear ring is rotatably connected to the fixed base, the two gears one are commonly meshed with a gear two on a side away from the fixed base, the inner surface of the gear two is fixedly connected to an inner filter cartridge, and the lower end of the gear two is rotatably connected to the fixed base.

[0009] Preferably, the upper ends of the two gears are fixedly connected with cleaning rollers, the outer surfaces of the two cleaning rollers are rotatably connected to the outer surface of the inner filter cylinder and the inner surface of the outer filter cylinder, the two sides of the inner surface of the treatment box are fixedly connected with fixed seats 2, and the sides of the two fixed seats 2 that are close to each other are commonly fixedly connected with a water baffle.

[0010] Preferably, the two-way spray assembly includes a rotating shaft rotatably connected to the upper end of the water baffle, the outer surface of the rotating shaft is fixedly connected to a stirring rod, the inner surface of the processing box is fixedly installed with a lower spray mechanism, the inner surface of the lower spray mechanism is fixedly connected with a plurality of connecting pipes, and the upper spray mechanism is fixedly installed on the surfaces of the plurality of connecting pipes that are close to each other.

[0011] Preferably, the self-circulation component comprises a connecting pipe 2 whose upper ends of the lower spray mechanism and the upper spray mechanism are fixedly connected, and the upper ends of the connecting pipe 2 are commonly fixedly connected to an outer shell, and a plurality of spray heads are arranged inside the outer shell.

[0012] Preferably, the inner surface of the processing box is fixedly connected to a connecting seat, the outer surface of the rotating shaft is rotatably connected to the connecting seat, the outer surface of the rotating shaft and the interior of the connecting seat is fixedly connected to a pulley transmission group, the upper side of the pulley transmission group away from one end of the rotating shaft is fixedly connected to a rotating rod, the outer surface of the rotating rod is fixedly connected to an intermittent mechanism, the upper end of the intermittent mechanism is fixedly connected to a rotating seat one, and the rotating shaft passes through the interior of the rotating seat one and is rotatably connected to the rotating seat one.

[0013] Preferably, a polyester fiber filter cloth is fixedly connected to the upper end of the rotating seat one, a baffle plate one is fixedly connected to the inner surface of the processing box and located at the lower end of the polyester fiber filter cloth, and two openings are provided on the outer surface of the baffle plate one, a baffle plate two is fixedly connected to the inner surface of the processing box and located at the upper end of the polyester fiber filter cloth, and an opening two is provided on the outer surface of the baffle plate two, a rotating seat two is fixedly connected to the top end of the rotating shaft, a cleaning scraper is fixedly connected to the left and right sides of the rotating seat two, and the lower ends of the two cleaning scrapers are rotatably connected to the baffle plate two together, holes are provided at the center positions of the baffle plate one and the baffle plate two, the upper end of the outer shell is fixedly connected to the inner surface of the left opening one, the lower end of the polyester fiber filter cloth is rotatably connected to the upper end of the baffle plate one, and the upper end of the polyester fiber filter cloth is rotatably connected to the lower end of the baffle plate two.

[0014] Preferably, the air injection assembly includes a fixing plate fixedly connected to the upper side of the inner surface of the processing box, the outer surface of the fixing plate is provided with a through groove, the lower end of the fixing plate is fixedly connected to a rotating seat three, both sides of the lower end of the fixing plate are fixedly connected to springs, and the lower ends of the two springs are commonly fixedly connected to an electrostatic flocking filter cloth.

[0015] Preferably, a rotating ball is provided at the upper end of the electrostatic flocking filter cloth, the outer surface of the rotating ball is rotatably connected to the lower end of the rotating seat three, the lower end of the electrostatic flocking filter cloth is fixedly connected to a guide rod, one side of the upper end of the rotating seat two is fixedly connected to a guide seat, and the inner surface of the guide seat is movably connected to the outer surface of the guide rod.

[0016] Preferably, the left and right sides of the upper end of the electrostatic flocking filter cloth are fixedly connected with protrusions, the left and right sides of the lower end of the fixed plate are fixedly connected with airbags, the outer surfaces of the two protrusions are movably connected to the lower ends of the two airbags, and one-way valves are provided at both ends of the two airbags.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention performs multi-layer filtration on the exhaust gas generated during automobile painting through filtering layers such as a double-cylinder reverse filtering group, a two-way spray component, a self-circulating component and an air injection component. First, the double cylinders in the double-cylinder reverse filtering group rotate in opposite directions to intercept the exhaust gas in layers while disrupting the airflow to perform preliminary filtration on the exhaust gas. Subsequently, the two-way spray component and the self-circulating component cooperate to form a three-dimensional spray field in the upper and lower directions in space, and the filtering layer in the self-circulating component is cleaned, thereby realizing the cycle of synchronous filtering and cleaning of the self-circulating component. Finally, the shaking of the air injection component is used to improve the adsorption and interception efficiency of tiny particles and realize self-cleaning. The layers cooperate with each other so that the treated automobile painting exhaust gas can meet the emission standards and effectively protect the environment.

[0019] The present invention performs preliminary filtration of exhaust gas through the outer filter cartridge and the inner filter cartridge in the double-cylinder reverse filtration group. When particles of different particle sizes pass through two layers of filter cartridges with different pore sizes, they can be effectively intercepted by the corresponding layers according to their respective sizes. The opposite rotation directions of the two filter cartridges will disturb the airflow, causing the exhaust gas to form complex turbulence in the filter cartridge, so that the volatile organic compounds (VOCs) in the exhaust gas have more opportunities to contact the filter cartridge wall. At the same time, the cleaning roller can clean the pores of the outer filter cartridge and the inner filter cartridge in real time to prevent them from excessive accumulation and clogging the filter holes, thereby ensuring that the filter cartridge always maintains good permeability and stable filtration efficiency, and extending the service life of the filter cartridge.

[0020] The present invention forms a three-dimensional spray field in space through the upper and lower spraying of the lower spray mechanism and the upper spray mechanism, thereby expanding the coverage of the spray liquid. At the same time, the guide design of baffle plate 1 and baffle plate 2 and the intermittent rotation of the polyester fiber filter cloth are utilized to extend the residence time of the exhaust gas in this layer, and the spray head is used to continuously flush the polyester fiber filter cloth locally, so that when one side of the polyester fiber filter cloth is filtering the exhaust gas, the other side can be cleaned with the spray liquid, and such a reciprocating cycle is repeated, thereby extending the service life of the filter cloth and ensuring the continuous filtering ability of this layer for the paint exhaust gas during long-term operation.

[0021] The present invention uses an electrostatic flocking filter cloth to perform the final interception and adsorption of extremely small particles remaining in the exhaust gas and trace amounts of low-volatile organic compounds and other pollutants. During the process, different structures can be used to make the electrostatic flocking filter cloth as a whole continuously sway from side to side. The tiny particles in the exhaust gas become more active due to the air disturbance caused by the shaking, which increases the chance of collision between the tiny particles and the electrostatic flocking fibers on the surface of the filter cloth, thereby improving the adsorption and interception efficiency of the tiny particles. The shaking of the electrostatic flocking filter cloth is used to intermittently squeeze the airbag, so that fresh air is input into the airbag. This can not only achieve a certain degree of self-cleaning effect, but also dilute the exhaust gas concentration, optimize the overall filtering environment, and ensure the quality of the final exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall external structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall internal structure of the present invention;

[0024] Figure 3 It is a partial structural schematic diagram of the double-tube reverse filtration group of the present invention;

[0025] Figure 4 It is a structural schematic diagram of a double-tube reverse filtration group of the present invention;

[0026] Figure 5 It is a structural schematic diagram of a gear 1 of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the bidirectional spray assembly of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the self-circulation component of the present invention;

[0029] Figure 8 It is a partial structural schematic diagram of the self-circulating component of the present invention;

[0030] Fig. 9 It is a structural schematic diagram of the air injection assembly of the present invention;

[0031] Fig.10 It is a partial structural schematic diagram of the air injection assembly of the present invention.

[0032] In the figure: 1. Processing box; 11. Intake pipe; 12. Exhaust pipe; 13. Maintenance port; 14. Support leg 1; 2. Double-tube reverse filter group; 21. Support leg 2; 22. Fixed base; 23. Fixed seat 1; 24. Motor; 25. Gear 1; 26. Internal gear ring; 27. External filter cartridge; 28. Gear 2; 29. ​​Internal filter cartridge; 210. Cleaning roller; 211. Fixed seat 2; 212. Water baffle; 3. Two-way spray assembly; 31. Rotating shaft; 32. Stirring rod; 33. Lower spray mechanism; 34. Connecting pipe 1; 35. Upper spray mechanism; 4. Self-circulation assembly; 40 , connecting pipe two; 411, outer shell; 412, sprinkler head; 41, connecting seat; 42, pulley drive group; 43, rotating rod; 44, intermittent mechanism; 45, rotating seat one; 46, polyester fiber filter cloth; 47, baffle one; 471, opening one; 48, baffle two; 481, opening two; 49, rotating seat two; 410, cleaning scraper; 5, air injection assembly; 52, fixing plate; 521, through groove; 53, rotating seat three; 54, spring; 55, electrostatic flocking filter cloth; 551, rotating ball; 56, guide rod; 57, guide seat; 58, bump; 59, airbag. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] Embodiment 1, as Figure 1-2 As shown, an exhaust gas treatment device for new energy industrial automobile production includes a treatment box 1, a drain port is provided at the bottom end of the treatment box 1, an air suction device is provided at the top end of the treatment box 1, so that the exhaust gas can flow from bottom to top, a double-barrel reverse filter group 2 is provided on the lower side inside the treatment box 1, an air suction pipe 11 is fixedly connected to the bottom end of the treatment box 1, and the air suction pipe 11 is connected to the external air suction hood to absorb the gas generated during automobile production spraying, an exhaust pipe 12 is fixedly connected to the upper end of the treatment box 1, and an air suction device is provided inside the exhaust pipe 12 to draw the air inside the treatment box 1 upward, so that the exhaust gas flows upward and is finally discharged from the exhaust pipe 12, a maintenance port 13 is fixedly installed on the outer surface of the treatment box 1, and a supporting leg 14 is fixedly connected to the bottom end of the treatment box 1, a two-way spray assembly 3 is provided on the upper side of the double-barrel reverse filter group 2, a self-circulation assembly 4 is provided on the upper side of the two-way spray assembly 3, and an air injection assembly 5 is provided on the upper side of the self-circulation assembly 4.

[0035] Therefore, this scheme performs multi-layer filtration on the exhaust gas generated during automobile painting through multiple filtration layers such as a double-cylinder reverse filter group 2, a two-way spray component 3, a self-circulation component 4 and an air injection component 5. First, the double cylinders in the double-cylinder reverse filter group 2 rotate in opposite directions to intercept the exhaust gas in layers while disrupting the airflow to perform preliminary filtration on the exhaust gas. Subsequently, the two-way spray component 3 and the self-circulation component 4 are used in cooperation to form a three-dimensional spray field in the upper and lower directions in the space, and the filtration layer in the self-circulation component 4 is cleaned, thereby realizing the synchronous filtration and cleaning cycle of the self-circulation component 4. Finally, the shaking of the air injection component 5 is used to improve the adsorption and interception efficiency of tiny particles and realize self-cleaning. The layers cooperate with each other so that the treated automobile paint exhaust gas can meet the emission standards and effectively protect the environment.

[0036] Embodiment 2: Based on Embodiment 1, this embodiment is to achieve the effect of double-layer filtration of exhaust gas and disrupting the airflow.

[0037] See also Figure 1-5The double-barrel reverse filter group 2 includes a supporting leg 21 fixedly connected to the bottom wall of the inner surface of the processing box 1, the upper end of the supporting leg 21 is fixedly connected to a fixed base 22, both sides of the fixed base 22 are fixedly connected to a fixed base 23, and the ends of the two fixed bases 23 away from each other are commonly fixedly connected to the inner surface of the processing box 1, and a motor 24 is fixedly installed at the bottom end of the processing box 1. The upper end of the fixed base 22 is rotatably connected to two gears 25, and the lower end of the front gear 25 is fixedly connected to the output end of the motor 24. The outer surfaces of the two gears 25 are commonly meshed with an inner gear ring 26, and the upper end of the inner gear ring 26 is fixedly connected to an outer filter cartridge 27, and the lower end of the inner gear ring 26 is rotatably connected to the fixed base 22. The two gears 25 are commonly meshed with a gear 28 away from the fixed base 22. The inner surface of the gear 28 is fixedly connected to an inner filter cartridge 29, and the lower end of the gear 28 is rotatably connected to the fixed base 22.

[0038] Specifically, the second support leg 21 drives the entire fixed base 22 and the above devices to be lifted, so as to facilitate the spraying liquid to flow out from the drain port at the bottom of the processing box 1 and avoid contact with the double-tube reverse filter group 2.

[0039] Furthermore, the filter holes of the outer filter cartridge 27 and the inner filter cartridge 29 have different apertures. The aperture of the outer filter cartridge 27 is slightly smaller. When particles of different sizes pass through two layers of filter cartridges with different apertures, they can be effectively intercepted by the corresponding layers according to their sizes. Gear 1 25 is meshed with the inner gear ring 26 and gear 2 28 at the same time, so that the rotation directions of the outer filter cartridge 27 and the inner filter cartridge 29 are opposite. The opposite rotation directions will disrupt the airflow, making the flow of the exhaust gas no longer a smooth and single state, but forming a complex turbulence. This turbulence increases the contact opportunity and contact time of the exhaust gas with the inner walls of the outer filter cartridge 27 and the inner filter cartridge 29, making it easier for paint mist particles to collide with the cartridge wall and be adsorbed or blocked.

[0040] See also Figure 3 and Figure 4 The upper ends of the two gears 25 are fixedly connected with cleaning rollers 210, and the outer surfaces of the two cleaning rollers 210 are rotatably connected to the outer surface of the inner filter cylinder 29 and the inner surface of the outer filter cylinder 27. Both sides of the inner surface of the processing box 1 are fixedly connected with fixed seats 211, and the sides of the two fixed seats 211 that are close to each other are fixedly connected with a water baffle 212.

[0041] Furthermore, the two gears 25 drive the cleaning roller 210 to rotate during the self-rotation process. The cleaning roller 210 can synchronously clean the two barrel walls in real time, sweep away the accumulated particulate matter, and prevent it from excessively accumulating and clogging the filter holes, thereby ensuring that the outer filter cartridge 27 and the inner filter cartridge 29 always maintain good permeability and stable filtration efficiency, extending their service life and reducing the maintenance cost of frequent replacement of filter cartridges, so that this layer can continue to effectively perform preliminary treatment on the paint exhaust gas during long-term operation, and the water retaining plate 212 can block the spray liquid pouring down from the upper side.

[0042] Then, the gas generated during the automobile production spraying is sucked into the processing box 1 from the suction hood and the suction pipe 11, and the motor 24 is started to drive the gear 1 25 to rotate. The rotation of the gear 1 25 will mesh with the inner gear ring 26 and the gear 2 28, thereby driving the outer filter cylinder 27 and the inner filter cylinder 29 to rotate in opposite directions. At the same time, the two gears 1 25 themselves rotate, driving the cleaning roller 210 to rotate, so that the cleaning roller 210 can clean the filter holes of the outer filter cylinder 27 and the inner filter cylinder 29 in real time to prevent clogging;

[0043] After entering, the exhaust gas will first pass through the inner filter cartridge 29. Large particles of paint mist will first be blocked by the relatively large filter holes on the inner filter cartridge 29, while particles with smaller particle sizes will continue to be captured by the finer filter cartridges of the outer filter cartridge 27 after passing through the inner filter cartridge 29, and then overflow from the outer surface of the outer filter cartridge 27 and flow upward.

[0044] In this step, the paint mist particles and volatile organic compounds (VOCs) in the exhaust gas can be initially adsorbed, thereby achieving preliminary purification of particulate matter and some organic matter in the exhaust gas.

[0045] Therefore, this scheme performs preliminary filtration of the exhaust gas through the outer filter cartridge 27 and the inner filter cartridge 29 in the double-cylinder reverse filtration group 2. When particles of different sizes pass through two layers of filter cartridges with different pore sizes, they can be effectively intercepted by the corresponding layers according to their respective sizes, and the opposite rotation directions of the two filter cartridges will disrupt the airflow, causing the exhaust gas to form complex turbulence in the filter cartridge, thereby increasing the contact opportunity and contact time between the exhaust gas and the filter cartridge wall, and giving the volatile organic compounds (VOCs) in the exhaust gas more opportunities to contact the filter cartridge wall. At the same time, the cleaning roller 210 can clean the pores of the outer filter cartridge 27 and the inner filter cartridge 29 in real time to prevent them from excessively accumulating and clogging the filter holes, thereby ensuring that the filter cartridge always maintains good permeability and stable filtration efficiency, and extending the service life of the filter cartridge.

[0046] Embodiment 3: This embodiment is based on Embodiments 1 and 2, in order to achieve the effect of expanding the spraying range and extending the service life of the polyester fiber filter cloth 46.

[0047] See also Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 The two-way spray assembly 3 includes a rotating shaft 31 rotatably connected to the upper end of the water baffle 212, a stirring rod 32 is fixedly connected to the outer surface of the rotating shaft 31, a lower spray mechanism 33 is fixedly installed on the inner surface of the processing box 1, a plurality of connecting pipes 34 are fixedly connected to the inner surface of the lower spray mechanism 33, and an upper spray mechanism 35 is fixedly installed on the side where the plurality of connecting pipes 34 are close to each other.

[0048] Specifically, the lower spray mechanism 33 and the upper spray mechanism 35 are connected through an external water source, wherein the nozzle on the surface of the lower spray mechanism 33 is oriented downward, and the nozzle on the surface of the upper spray mechanism 35 is oriented upward. When the spray liquid is sprayed upward and downward at the same time, a three-dimensional spray field will be formed in the space, which greatly expands the coverage of the spray liquid. The complex spray field generated by the two-way spraying will disturb the relatively stable airflow state of the exhaust gas flowing from bottom to top, causing it to form turbulence, and to a certain extent break the stratification or local aggregation phenomenon that may exist between the various components in the exhaust gas and between the exhaust gas and the spray liquid. For the small amount of paint mist particles that still remain after the first layer of filtration, the droplets of the spray liquid will wrap them, and the particles will become larger through collision and condensation between the droplets, and then settle from the airflow under the action of gravity, further reducing the number of paint mist particles in the exhaust gas and improving the cleanliness of the exhaust gas;

[0049] Furthermore, the stirring rod 32 can disperse the spray liquid, so that the exhaust gas generated when the car is sprayed with paint can fully contact with the spray liquid.

[0050] In this step, the first step is to remove water-soluble organic pollutants in the exhaust gas, such as alcohols, aldehydes, ketones and other organic solvents, so that they are dissolved in the spray liquid and discharged; the second step is to further intercept the paint mist particles remaining after passing through the filter cartridge and reduce the number of particles by droplet encapsulation, condensation and sedimentation.

[0051] See also Figure 7 The self-circulation component 4 includes a connecting pipe 2 40 to which the upper ends of the lower spray mechanism 33 and the upper spray mechanism 35 are fixedly connected. The upper ends of the connecting pipe 2 40 are fixedly connected to an outer shell 411, and a plurality of spray heads 412 are arranged inside the outer shell 411.

[0052] Furthermore, the spray head 412 can spray spray liquid upward together with the upper spray mechanism 35 to clean and flush the part of the polyester fiber filter cloth 46 that matches the position of the opening 471. A drain outlet is provided at the position where the outer shell 411 fits with the inner surface of the processing box 1 to facilitate the discharge of the liquid after cleaning the polyester fiber filter cloth 46.

[0053] See also Figure 7 and Figure 8The inner surface of the processing box 1 is fixedly connected with a connecting seat 41, the outer surface of the rotating shaft 31 is rotatably connected to the connecting seat 41, the outer surface of the rotating shaft 31 and the inside of the connecting seat 41 are fixedly connected with a pulley transmission group 42, the upper side of the pulley transmission group 42 away from one end of the rotating shaft 31 is fixedly connected with a rotating rod 43, the outer surface of the rotating rod 43 is fixedly connected with an intermittent mechanism 44, the upper end of the intermittent mechanism 44 is fixedly connected with a rotating seat 45, the rotating shaft 31 passes through the inside of the rotating seat 45 and is rotatably connected to the rotating seat 45.

[0054] Furthermore, the pulley transmission group 42 mentioned above is composed of two pulleys and a belt, and the intermittent mechanism 44 is mainly composed of a driving dial, a driven groove wheel and a cylindrical pin. Its working principle is as follows: when the driving dial rotates, the cylindrical pin on it will gradually approach the notch of the driven groove wheel. When the cylindrical pin enters a certain notch of the groove wheel, it will drive the groove wheel to start rotating. In the process of the cylindrical pin moving along the notch, the groove wheel continues to rotate a certain angle. When the cylindrical pin escapes from the notch of the groove wheel, the groove wheel will stop rotating due to its own structure and remain stationary until the cylindrical pin on the driving dial enters the next notch again. The groove wheel will repeat the above rotation process, and the cycle will be repeated, so that the groove wheel can achieve intermittent rotation.

[0055] Therefore, the rotating rod 43 is driven to rotate by the pulley transmission group 42, and the rotating rod 43 drives the driven groove wheel in the intermittent mechanism 44 to rotate intermittently, so that the polyester fiber filter cloth 46 rotates intermittently.

[0056] See also Figure 7 and Figure 8 A polyester fiber filter cloth 46 is fixedly connected to the upper end of the rotating seat 1, a baffle 1 47 is fixedly connected to the inner surface of the processing box 1 and located at the lower end of the polyester fiber filter cloth 46, and two openings 1 471 are provided on the outer surface of the baffle 1 47, and a baffle 2 48 is fixedly connected to the inner surface of the processing box 1 and located at the upper end of the polyester fiber filter cloth 46, and an opening 2 481 is provided on the outer surface of the baffle 2 48, and a rotating seat 2 49 is fixedly connected to the top of the rotating shaft 31, and cleaning scrapers 410 are fixedly connected to the left and right sides of the rotating seat 2 49, and the lower ends of the two cleaning scrapers 410 are rotatably connected to the baffle 2 48 together, and holes are provided at the center positions of the baffle 1 47 and the baffle 2 48, and the upper end of the outer shell 411 is fixedly connected to the inner surface of the left opening 1 471, and the lower end of the polyester fiber filter cloth 46 is rotatably connected to the upper end of the baffle 1 47, and the upper end of the polyester fiber filter cloth 46 is rotatably connected to the lower end of the baffle 2 48.

[0057] Furthermore, the polyester fiber filter cloth 46 is a synthetic fiber with high strength and wear resistance, good chemical stability, and is not easily corroded by chemical substances such as acids and alkalis. The fibers are interlaced with each other by a needle punching process to form an internal three-dimensional, highly fluffy three-dimensional depth structure. This structure can effectively intercept impurities. At the same time, the loose fiber structure can also increase the capacity of impurities and extend the service life of the filter cloth.

[0058] Its filtering method belongs to the compound interception mode, which can not only retain larger particle impurities on the fiber surface, but also capture fine particles in the deep layer of the filter material, thereby ensuring that the filter bag will not be damaged due to increased pressure during use, and can achieve higher filtration efficiency. The exhaust gas from automobile spray painting contains solid impurities such as paint mist particles and dust. The polyester fiber filter cloth 46 can effectively block these impurities through physical interception, and has a high removal efficiency for paint mist particles with larger particle sizes. The polyester fiber filter cloth 46 has strong chemical stability and wear resistance, and is not easily corroded by chemical substances such as acids and alkalis. Therefore, it can be rinsed with spray liquids of various properties without causing damage to the filter cloth. It can also withstand the impact and friction during spray liquid flushing, and is not prone to breakage or tearing.

[0059] Furthermore, most of the polyester fiber filter cloth 46 is blocked by the polyester fiber filter cloth 46 and the baffle 2 48, leaving only a part of the position for the exhaust gas to pass through, so as to extend the flow time of the exhaust gas in this step.

[0060] Furthermore, the inner cavities of the two cleaning scrapers 410 are opened in the same direction, so no matter which direction they rotate, there can be a cleaning scraper 410 to clean and collect particles on the surface of baffle 2 48. The space inside the cleaning scraper 410 is inclined, and the side close to the inner wall of the processing box 1 is empty and unobstructed. The overall left side is wide and the right side is narrow, so the dust on the surface of baffle 2 48 can be scraped off. This dust may be shaken off by the electrostatic flocking filter cloth 55 on the upper side. After it is scraped away, it is thrown into 413 on both sides by centrifugal force, and the staff can clean 413 later.

[0061] Furthermore, the outer shell 411 can seal the position of the opening 471 to a certain extent, so that the exhaust gas cannot pass through the opening 471;

[0062] The opening 471 on the left side of the above-mentioned structure allows the spray head 412 to pass through the opening 471 to clean the polyester fiber filter cloth 46, and the opening 471 on the right side allows the exhaust gas to pass through, so that when one side of the polyester fiber filter cloth 46 is filtering the exhaust gas, the other side can be cleaned by the spray liquid, and such a reciprocating cycle is repeated, which greatly extends the service life of the polyester fiber filter cloth 46, reduces the cost and workload of frequent replacement, realizes the effective use of resources, and ensures the continuous filtering ability of this layer for paint exhaust gas in long-term operation.

[0063] Then, the external water source power source is started, so that the lower spray mechanism 33 and the upper spray mechanism 35 start to spray up and down, and at the same time, the stirring rod 32 is also constantly rotating to break up the spray liquid. When the exhaust gas passes through here, the droplets of the spray liquid will wrap it, and the particles will become larger through the collision and condensation between the droplets. Then, under the action of gravity, they settle from the air flow to the bottom of the treatment box 1 and are temporarily collected at the bottom of the treatment box 1. Then, the gas continues to go upward, passes through the polyester fiber filter cloth 46 from the position of the right opening 1 471, and then overflows from the position of the opening 2 481. In this step, When the rotation shaft 31 is turned on, the pulley transmission group 42 is driven to rotate, so that the rotating rod 43 drives the intermittent mechanism 44 to rotate, thereby driving the rotating seat 45 and the polyester fiber filter cloth 46 to rotate intermittently, so that part of the area of ​​the polyester fiber filter cloth 46 will continuously pass through the opening 471 on the left side, so that this part of the polyester fiber filter cloth 46 is cleaned and flushed by the spray liquid of the spray head 412, so that one side of the polyester fiber filter cloth 46 can filter the exhaust gas while the other side can be cleaned by the spray liquid, and this reciprocating cycle is repeated to extend the service life of the polyester fiber filter cloth 46;

[0064] The spray liquid after flushing will flow away from the drain port outside the outer shell 411;

[0065] The rotating shaft 31 penetrates the inner surface of the rotating seat 1 45, extends to the upper end of the rotating seat 1 45 and is connected to the rotating seat 2 49. When the rotating seat 2 49 is driven to rotate continuously, the two cleaning scrapers 410 also rotate along the surface of the baffle 2 48 to scrape away and clean the particles shaken off the upper filter layer.

[0066] In this step, the fine particles that remain after the previous treatment can be intercepted, and the purity of the exhaust gas can be improved by virtue of its own fine fiber structure. At the same time, its adsorption properties can be used to adsorb low-concentration, low-volatile organic matter that has not been completely removed in the exhaust gas, thereby further reducing the organic content.

[0067] Therefore, this solution forms a three-dimensional spray field in space through the upper and lower spraying of the lower spray mechanism 33 and the upper spray mechanism 35, thereby expanding the coverage of the spray liquid. At the same time, the guide design of baffle 1 47 and baffle 2 48 and the intermittent rotation of the polyester fiber filter cloth 46 are utilized to extend the residence time of the exhaust gas in this layer, and the spray head 412 continuously flushes the polyester fiber filter cloth 46 locally, so that when one side of the polyester fiber filter cloth 46 is filtering the exhaust gas, the other side can be cleaned with the spray liquid, and this reciprocating cycle is repeated, thereby extending the service life of the filter cloth and ensuring the continuous filtering ability of this layer for the paint exhaust gas during long-term operation.

[0068] Embodiment 4: Based on Embodiments 1, 2 and 3, this embodiment aims to improve the efficiency of adsorption and interception of tiny particles while achieving a self-cleaning effect.

[0069] See also Figure 1 , Figure 2 , Fig. 9 and Fig.10 The air injection assembly 5 includes a fixed plate 52 fixedly connected to the upper side of the inner surface of the processing box 1, a through groove 521 is provided on the outer surface of the fixed plate 52, a rotating seat 53 is fixedly connected to the lower end of the fixed plate 52, springs 54 are fixedly connected to both sides of the lower end of the fixed plate 52, and an electrostatic flocking filter cloth 55 is fixedly connected to the lower ends of the two springs 54.

[0070] Specifically, the core working principle of the electrostatic flocking filter cloth 55 is based on electrostatic adsorption: during the preparation process, the electrostatic charge of the fluff fibers on the surface of the filter cloth is usually negative through a specific electrostatic flocking process, and the base cloth of the entire filter cloth is generally in a grounded or zero potential state;

[0071] When the exhaust gas containing pollutants contacts the electrostatic flocking filter cloth, the tiny particles in the exhaust gas are charged or polarized under the influence of factors such as airflow. According to the principle of electrostatics, there is a Coulomb force of attraction between objects with opposite charges, so these tiny particles will be adsorbed to the statically charged flock fibers under the action of electrostatic attraction. Paint mist particles, dust particles, and tiny particles formed by the condensation of some volatile organic compounds in the exhaust gas of automobile spray painting will adhere to the flock on the surface of the filter cloth due to this electrostatic adsorption force, thereby achieving the purpose of being separated from the exhaust gas.

[0072] Furthermore, the spring 54 can limit the electrostatic flocking filter cloth 55 without hindering the electrostatic flocking filter cloth 55 from swinging.

[0073] See also Fig. 9 and Fig.10A rotating ball 551 is provided at the upper end of the electrostatic flocking filter cloth 55, and the outer surface of the rotating ball 551 is rotatably connected to the lower end of the rotating seat three 53. The lower end of the electrostatic flocking filter cloth 55 is fixedly connected to a guide rod 56, and one side of the upper end of the rotating seat two 49 is fixedly connected to a guide seat 57, and the inner surface of the guide seat 57 is movably connected to the outer surface of the guide rod 56.

[0074] Furthermore, the guide seat 57 has a large upper end diameter and a small lower end diameter, which is convenient for the guide rod 56 to move back and forth inside the guide seat 57, and the center of the guide seat 57 is located on one side of the rotating seat 49, and the center point of the rotating ball 551 is on the same horizontal line as the center axis of the rotating seat 49, so when the guide seat 57 rotates around the axis of the rotating seat 49, the electrostatic flocking filter cloth 55 can be driven to swing;

[0075] During the static filtering process of the electrostatic flocking filter cloth 55, as time goes by, the adsorption of particles by the fluff fibers on its surface will gradually reach a relatively balanced state, that is, the adsorption sites are gradually occupied, and the difficulty of new particles being adsorbed will increase, and the filtering efficiency will also decrease. The shaking and swaying of the filter cloth breaks this adsorption balance. When the electrostatic flocking filter cloth 55 shakes left and right, the fluff fibers on its surface also move, making the originally relatively static filtering interface dynamic. When the tiny particles in the exhaust gas of automobile spray paint flow through the filter cloth, facing the shaking fluff fibers, the probability of collision between them will increase significantly, just like the originally static "trap" fluff fibers begin to actively "attack", and are more likely to contact the particles in the exhaust gas in a flowing state, and then use the electrostatic adsorption effect of the fluff fibers to capture the particles, thereby improving the adsorption and interception efficiency of various tiny particles of various particle sizes in the exhaust gas, such as paint mist particles, dust, etc., and better removing the particulate matter components in the exhaust gas;

[0076] In addition, it is difficult for particles to accumulate stably during the shaking process. Even if there is a small amount of accumulation, it will become loose again due to the disturbance caused by the swinging, maintaining a good gap structure between the fluff fibers and ensuring that the exhaust gas can smoothly pass through the filter cloth. At the same time, it also enables the filtering performance of the filter cloth to be maintained stably for a long time, reducing the maintenance cost of frequent replacement of the filter cloth due to blockage.

[0077] The left and right sides of the upper end of the electrostatic flocking filter cloth 55 are fixedly connected with protrusions 58, and the left and right sides of the lower end of the fixed plate 52 are fixedly connected with airbags 59. The outer surfaces of the two protrusions 58 are movably connected to the lower ends of the two airbags 59, and the left and right ends of the two airbags 59 are provided with one-way valves.

[0078] Furthermore, when the electrostatic flocking filter cloth 55 swings left and right, the upper protrusion 58 will continuously touch the airbag 59. The one-way valves on the sides of the two airbags 59 that are close to each other can only let out air but not let in air, while the two one-way valves that are far away from each other can only let in air but not let out air. As a result, the airbag 59 can intermittently spray fresh air into the interior, increasing the gas flowability in the exhaust gas treatment area, and helping to shake off some of the particles that have been adsorbed around the electrostatic flocking filter cloth 55 through the impact of airflow, thereby achieving a certain degree of self-cleaning effect and maintaining the adsorption capacity of the filter cloth; at the same time, the supplementary fresh air can adjust the gas composition in the treatment area, dilute the exhaust gas concentration, optimize the overall filtering environment, and further improve the filter cloth's adsorption effect on tiny particles and its adsorption capacity for residual organic matter, thereby improving this layer of purification quality for paint exhaust gas. As the last line of defense for the entire exhaust gas treatment device, it effectively guarantees the quality of the final exhaust gas.

[0079] Furthermore, when the rotating seat 2 49 rotates, it will drive the guide seat 57 to rotate around the axis of the baffle 1 47, so that the guide rod 56 inside the guide seat 57 will continue to shake, thereby driving the electrostatic flocking filter cloth 55 to swing left and right. While shaking, the electrostatic flocking filter cloth 55 will intermittently squeeze the airbag 59, squeeze out the fresh air belonging to the outside in the airbag 59, and disrupt the internal exhaust gas flow. When the protrusion 58 is separated from the airbag 59, the airbag 59 loses its squeezing and will automatically inhale external air through the external one-way valve to fill the airbag 59. This cycle repeats itself, and finally the gas overflows from the through groove 521 and flows to the exhaust pipe 12 for discharge.

[0080] In this step, electrostatic adsorption is used to efficiently intercept extremely tiny particles in the exhaust gas, including submicron-level pollutants, and residual trace organic matter can also be adsorbed and removed.

[0081] Therefore, this solution uses the electrostatic flocking filter cloth 55 to carry out the final interception and adsorption of extremely small particles remaining in the exhaust gas and trace amounts of low-volatile organic compounds and other pollutants. During the process, different structures can be used to make the electrostatic flocking filter cloth 55 as a whole continuously sway from side to side. The tiny particles in the exhaust gas become more active due to the air disturbance caused by the shaking, which increases the chance of collision between the tiny particles and the electrostatic flocking fibers on the surface of the filter cloth, thereby improving the adsorption and interception efficiency of the tiny particles. The shaking of the electrostatic flocking filter cloth 55 is used to intermittently squeeze the airbag 59, so that the airbag 59 inputs fresh air into the interior, which can not only achieve a certain degree of self-cleaning effect, but also dilute the exhaust gas concentration, optimize the overall filtering environment, and ensure the quality of the final exhaust gas.

[0082] It should be particularly noted that the specific installation method of the suction device, motor 24, lower spray mechanism 33, connecting pipe 34 and spray head 412 inside the processing box 1 used in the present invention, the circuit connection method and the control method are all conventional designs and will not be elaborated in detail in the present invention.

[0083] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An exhaust gas treatment device for new energy industrial automobile production, comprising a treatment box (1), characterized in that: A double-barrel reverse filter group (2) is arranged at the lower side of the interior of the treatment box (1); an air intake pipe (11) is fixedly connected to the bottom end of the treatment box (1); an air exhaust pipe (12) is fixedly connected to the top end of the treatment box (1); a maintenance port (13) is fixedly installed on the outer surface of the treatment box (1); a support leg (14) is fixedly connected to the bottom end of the treatment box (1); a two-way spray assembly (3) is arranged at the top side of the double-barrel reverse filter group (2); a self-circulation assembly (4) is arranged at the top side of the two-way spray assembly (3); and an air injection assembly (5) is arranged at the top side of the self-circulation assembly (4); The double-barrel reverse filter group (2) comprises a second support leg (21) fixedly connected to the bottom wall of the inner surface of the treatment box (1); the upper end of the second support leg (21) is fixedly connected to a fixed base (22); both sides of the fixed base (22) are fixedly connected to a first fixed base (23); the ends of the two first fixed bases (23) that are away from each other are fixedly connected to the inner surface of the treatment box (1); a motor (24) is fixedly mounted at the bottom end of the treatment box (1); the upper end of the fixed base (22) is rotatably connected to two first gears (25); the front side of the first gear (23) is fixedly connected to the inner surface of the treatment box (1); 5) is fixedly connected to the output end of the motor (24), the outer surfaces of the two gears 1 (25) are meshedly connected with an inner gear ring (26), the upper end of the inner gear ring (26) is fixedly connected with an outer filter cartridge (27), the lower end of the inner gear ring (26) is rotatably connected to the fixed base (22), the two gears 1 (25) are meshedly connected with a gear 2 (28) on a side away from the fixed base (22), the inner surface of the gear 2 (28) is fixedly connected with an inner filter cartridge (29), and the lower end of the gear 2 (28) is rotatably connected to the fixed base (22); The upper ends of the two gears (25) are fixedly connected to cleaning rollers (210), the outer surfaces of the two cleaning rollers (210) are rotatably connected to the outer surface of the inner filter cylinder (29) and the inner surface of the outer filter cylinder (27), the inner surface of the treatment box (1) is fixedly connected to fixed seats (211) on both sides, and the two fixed seats (211) are fixedly connected to a water baffle (212) on the sides close to each other.

2. The exhaust gas treatment device for new energy industrial automobile production according to claim 1 is characterized in that: The two-way spray assembly (3) comprises a rotating shaft (31) rotatably connected to the upper end of the water baffle (212); a stirring rod (32) is fixedly connected to the outer surface of the rotating shaft (31); a lower spray mechanism (33) is fixedly installed on the inner surface of the processing box (1); a plurality of connecting pipes (34) are fixedly connected to the inner surface of the lower spray mechanism (33); and an upper spray mechanism (35) is fixedly installed on one side of the plurality of connecting pipes (34) close to each other.

3. The exhaust gas treatment device for new energy industrial automobile production according to claim 2 is characterized in that: The self-circulating component (4) comprises a second connecting pipe (40) whose upper ends are fixedly connected to the lower spray mechanism (33) and the upper spray mechanism (35); the upper ends of the second connecting pipe (40) are fixedly connected to an outer shell (411); and a plurality of spray heads (412) are arranged inside the outer shell (411).

4. The exhaust gas treatment device for new energy industrial automobile production according to claim 3 is characterized by: The inner surface of the processing box (1) is fixedly connected to a connecting seat (41), the outer surface of the rotating shaft (31) is rotatably connected to the connecting seat (41), the outer surface of the rotating shaft (31) and located inside the connecting seat (41) is fixedly connected to a pulley transmission group (42), the upper side of the pulley transmission group (42) away from one end of the rotating shaft (31) is fixedly connected to a rotating rod (43), the outer surface of the rotating rod (43) is fixedly connected to an intermittent mechanism (44), the upper end of the intermittent mechanism (44) is fixedly connected to a rotating seat one (45), and the rotating shaft (31) passes through the interior of the rotating seat one (45) and is rotatably connected to the rotating seat one (45).

5. The exhaust gas treatment device for new energy industrial automobile production according to claim 4 is characterized in that: The upper end of the rotating seat 1 (45) is fixedly connected to a polyester fiber filter cloth (46); the inner surface of the processing box (1) and located at the lower end of the polyester fiber filter cloth (46) is fixedly connected to a baffle 1 (47); the outer surface of the baffle 1 (47) is provided with two openings 1 (471); the inner surface of the processing box (1) and located at the upper end of the polyester fiber filter cloth (46) is fixedly connected to a baffle 2 (48); the outer surface of the baffle 2 (48) is provided with an opening 2 (481); the top end of the rotating shaft (31) is fixedly connected to the rotating seat 2 (49); ), cleaning scrapers (410) are fixedly connected to the left and right sides of the rotating seat 2 (49), the lower ends of the two cleaning scrapers (410) are commonly rotatably connected to the baffle 2 (48), holes are opened at the center positions of the baffle 1 (47) and the baffle 2 (48), the upper end of the outer shell (411) is fixedly connected to the inner surface of the left opening 1 (471), the lower end of the polyester fiber filter cloth (46) is rotatably connected to the upper end of the baffle 1 (47), and the upper end of the polyester fiber filter cloth (46) is rotatably connected to the lower end of the baffle 2 (48).

6. The exhaust gas treatment device for new energy industrial automobile production according to claim 5 is characterized in that: The air injection assembly (5) comprises a fixed plate (52) fixedly connected to the upper side of the inner surface of the processing box (1); a through groove (521) is provided on the outer surface of the fixed plate (52); a rotating seat three (53) is fixedly connected to the lower end of the fixed plate (52); springs (54) are fixedly connected to both sides of the lower end of the fixed plate (52); and an electrostatic flocking filter cloth (55) is fixedly connected to the lower ends of the two springs (54).

7. The exhaust gas treatment device for new energy industrial automobile production according to claim 6 is characterized by: A rotating ball (551) is provided at the upper end of the electrostatic flocking filter cloth (55), and the outer surface of the rotating ball (551) is rotatably connected to the lower end of the rotating seat three (53). The lower end of the electrostatic flocking filter cloth (55) is fixedly connected to a guide rod (56), and one side of the upper end of the rotating seat two (49) is fixedly connected to a guide seat (57), and the inner surface of the guide seat (57) is movably connected to the outer surface of the guide rod (56).

8. The exhaust gas treatment device for new energy industrial automobile production according to claim 6 is characterized by: The left and right sides of the upper end of the electrostatic flocking filter cloth (55) are fixedly connected with protrusions (58), the left and right sides of the lower end of the fixed plate (52) are fixedly connected with air bags (59), the outer surfaces of the two protrusions (58) are movably connected to the lower ends of the two air bags (59), and the left and right ends of the two air bags (59) are provided with one-way valves.

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