Gas spraying particle tail gas treatment device

Abstract

The invention relates to a gas spraying particle tail gas treatment device which comprises a box body, a filtering part, a driving mechanism and a control mechanism, two air outlets are formed in the upper side of the box body, an air inlet is formed in the lower side of the box body, and the projection of the air inlet in the vertical direction is located between the two air outlets; the filter part is arranged in the box body, the upper end of the filter part is hinged to the box body, and the lower end of the filter part slidably abuts against the inner bottom wall of the box body so as to push impurities on the inner bottom wall of the box body to be gathered; the lower end of the filtering piece is self-adaptively stretched out and drawn back in the sliding process, and the filtering piece is cleaned; the driving mechanism drives the filtering piece to swing back and forth; the reciprocating swing of the filtering piece controls the opening and closing of the two air outlets through the control mechanism; the control mechanism controls the air outlet in the corresponding side to be opened and the air outlet in the reverse side to be closed according to the swinging direction of the filter part. The filter element swings to push impurities to gather, recover and clean the filter surface; when the swinging direction is switched, positive and negative filtration is formed to be matched with air flow back-blowing to clean the filtering surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas spraying particle tail gas treatment, in particular to a gas spraying particle tail gas treatment device. BACKGROUND

[0002] Part spraying is a surface treatment technology, which sprays powder particle paint on the surface of the part, and then solidifies through heating to form a solid surface coating. The surface of metal parts in building decoration engineering often needs to be sprayed. In the spraying workshop, the air often contains a large amount of powder particles, which have high recycling value. In addition, the tail gas containing powder particles is also difficult to meet the emission standard, and if it is directly inhaled by the human body, it will also cause harm to the human body. Therefore, the device needs to separate the powder particles from the tail gas and then discharge the tail gas.

[0003] For example, the patent with publication number CN119701523B discloses a gas spraying particle tail gas treatment device, relating to the technical field of particle separation. The gas spraying particle tail gas treatment device comprises a box body, a plurality of filter screens arranged in the box body, a plurality of standby screens arranged outside the box body, a rotating source fixedly installed in the box body, a drive shaft of the rotating source fixedly sleeved with a drive gear, the drive shaft of the rotating source fixedly connected with a transmission screw, the transmission screw threadedly connected with a transmission block, the transmission block opposite to the two side walls abutting against the fixedly arranged limiting rods, the transmission block top wall fixedly connected with the transmission spring, the transmission spring away from the transmission block one end abutting against the conversion plate, one filter screen and one standby screen respectively fixedly arranged at both ends of the conversion plate, and the conversion plate top wall fixedly connected with the conversion gear capable of meshing with the drive gear. The efficiency of separating powder particles from tail gas is improved.

[0004] It can be seen that at present, the spraying particle tail gas is usually treated by filtering. However, in actual application, when the spraying particle tail gas is treated by filtering, a large amount of powder particles will gradually adhere to the surface of the filter screen with the prolongation of the filtering time. On the one hand, these accumulated particles will continuously block the pores of the filter screen, directly leading to the continuous decline of the permeability of the filter screen; and the decline of the permeability of the filter screen will gradually weaken the filtering effect, eventually causing the overall treatment efficiency of the spraying particle tail gas to be greatly reduced. On the other hand, the collected powder impurities after filtering are often in a scattered and stacked state, which not only increases the difficulty of subsequent cleaning work, but also is not conducive to the centralized recycling and reuse of the powder with recycling value. SUMMARY

[0005] To address the aforementioned problems in existing technologies, the technical problem this invention aims to solve is that when treating sprayed particulate exhaust gas using filtration, a large amount of powder particles gradually adhere to the filter screen surface as the filtration time increases. On the one hand, these accumulated particles continuously clog the pores of the filter screen, directly leading to a continuous decrease in the filter screen's permeability; and the reduced permeability of the filter screen further weakens the filtration effect, ultimately resulting in a significant reduction in the overall treatment efficiency of the sprayed particulate exhaust gas. On the other hand, the powder impurities collected after filtration are often in a scattered and disorderly state, which not only increases the difficulty of subsequent cleaning work but also hinders the centralized recycling and reuse of powders with recycling value.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a gas spraying particulate exhaust gas treatment device, comprising: The box has two air outlets on its upper side and an air inlet on its lower side, with the vertical projection of the air inlet located between the two air outlets. A filter element is disposed inside the housing, with its upper end hinged to the housing and its lower end sliding against the bottom wall of the housing to promote the accumulation of impurities on the bottom wall of the housing; and the lower end of the filter element adaptively extends and retracts during the sliding process, and cleans itself. A drive mechanism that drives the filter element to reciprocate; and The control mechanism controls the opening and closing of the two air outlets by controlling the reciprocating oscillation of the filter element; and the control mechanism controls the air outlet on the corresponding side to open and the air outlet on the opposite side to close according to the oscillation direction of the filter element.

[0007] Preferably, 2. The gas spraying particulate exhaust gas treatment device according to claim 1, characterized in that the filter element comprises: a filter plate, a sliding rod, a scraper, a separator, and a bottom plate; a plurality of filter plates are arranged sequentially in the vertical direction; except for the topmost filter plate, the remaining filter plates are provided with a sliding rod and a scraper, the lower end of the sliding rod is fixedly connected to the filter plate, the upper end of the sliding rod is fixedly connected to the scraper, the scraper slides against the side of the adjacent filter plate above, and the sliding rod is slidably installed on the adjacent filter plate above; a separator is provided between two adjacent filter plates, and the separator is respectively installed on the two adjacent filter plates, the separator adaptively deforms according to the distance between the two filter plates to fill the gap between the two filter plates; the bottom plate is slidably installed at the bottom of the housing, and the bottommost filter plate is hinged to the bottom plate, and the topmost filter plate is hinged to the housing; the driving mechanism drives the bottom plate to reciprocate.

[0008] Preferably, scrapers and sliding rods are provided on both sides of the filter plate.

[0009] Preferably, the separator is an elastic stretchable layer.

[0010] Preferably, the length of the base plate in the sliding direction is greater than the length of the air inlet in the sliding direction of the base plate.

[0011] Preferably, the air inlet is connected to an elastic airbag.

[0012] Preferably, the driving mechanism includes: a reciprocating screw, a nut seat, and a motor; the reciprocating screw is arranged along the sliding direction of the base plate and is rotatably mounted on the housing; the nut seat is fixedly mounted on the base plate and is threadedly connected to the reciprocating screw; the motor drives the reciprocating screw to rotate.

[0013] Preferably, the control mechanism includes: a gear, a rack, and a partition; the gear is coaxially arranged with the hinge shaft at the upper end of the filter element, and the gear is fixedly connected to the filter element; the gear is slidably mounted on the housing, and the gear is meshed with the rack; both ends of the partition are respectively arranged corresponding to the two air outlets, and one end of the partition slides through the corresponding air outlet to close the air outlet.

[0014] Preferably, a filter screen is installed at each of the air outlets.

[0015] Compared with the prior art, the present invention has at least the following advantages: 1. In this invention, the exhaust gas from the gas spraying particles enters the housing through the air inlet on the lower side of the housing. Since the vertical projection of the air inlet is located between the two air outlets, the exhaust gas can naturally diffuse to both sides after entering, avoiding the direct emission of untreated dust-laden gas and causing environmental pollution. The drive mechanism drives the filter element to swing back and forth. Its upper end is hinged to the housing, and its lower end slides against the bottom wall of the housing. During the swing, the lower end can push impurities on the bottom wall to a specific area like a scraper, which not only avoids the particles scattering and causing secondary pollution, but also facilitates the centralized recycling and reuse of powder with recycling value, reducing resource waste. At the same time, the lower end of the filter element will adaptively extend and retract when sliding, scraping its own filter surface through the extension and retraction action, effectively cleaning the impurities adhering to the surface, and ensuring stable filtration efficiency. When the filter element swings to the left, it enters a forward filtration state. The control mechanism operates synchronously, opening the left outlet and closing the right outlet, allowing filtered clean gas to exit from the left outlet. When the filter element swings to the right, it switches to a reverse filtration state, closing the left outlet and opening the right outlet, allowing gas to exit from the right. This forward and reverse filtration mode, switching with the swing direction, combined with the reverse airflow impact to create a backflushing effect, further blows off particles adhering to the filter surface, reducing the frequency of filter media replacement and thus lowering solid waste generation. Furthermore, the reciprocating swing of the filter element changes the angle of the force exerted by the airflow at the inlet, causing dynamic changes in the direction and component of the impact force. On one hand, this periodically disturbs the internal pores of the filter media, breaking the stable adhesion of particles, assisting in impurity removal, and reducing energy consumption increases due to filter pore blockage. On the other hand, it prevents excessive wear of localized filter pores due to continuous stress, extending the filter element's lifespan and reducing the environmental burden caused by consumable consumption. The overall design achieves a balance between high-efficiency purification, resource recycling, and low environmental impact through structural synergy, which not only improves the environmental performance of exhaust gas treatment but also aligns with the development concept of green production.

[0016] 2. In this invention, the drive mechanism is controlled to move, and the drive mechanism drives the bottom plate to move back and forth. During the sliding process, the bottom plate pushes the impurities on the bottom wall of the box to accumulate. At the same time, the bottom plate drives multiple filter plates to swing synchronously through the hinge relationship with the bottommost filter plate. When the base plate slides away from the air inlet, the filter element swings outward around the hinge point between its top and the housing, increasing the distance between the upper and lower ends of the filter element and the distance between adjacent filter plates. To address this, the separators between adjacent filter plates adapt and deform accordingly, always tightly filling the gaps to prevent unfiltered gas leakage and ensuring the airtightness of the filtration path. Simultaneously, the lower filter plate moves the scraper downward via a sliding rod, with the scraper maintaining sliding contact with the side of the adjacent upper filter plate. During this movement, the scraper scrapes the surface of the upper filter plate, promptly removing attached impurities and preventing filter surface blockage that could affect filtration efficiency. When the base plate slides closer to the air inlet, the filter element swings inward, reducing the distance between its upper and lower ends and the distance between adjacent filter plates. The separators simultaneously contract to adapt to the change in gaps, maintaining a sealed state. The lower filter plate then moves the scraper upward via a sliding rod, continuing to scrape the surface of the upper filter plate for cleaning.

[0017] 3. In this invention, when the base plate slides to the middle position to block the air inlet, the connection between the elastic airbag and the external exhaust pipe remains unobstructed. The continuous input of exhaust gas causes the airbag to gradually expand, and the internal air pressure increases synchronously with the increase in the stored air volume, thus ensuring a continuous supply of external air without the need to stop the gas flow. When the base plate slides away from the middle position and the air inlet opens, the high-pressure exhaust gas accumulated in the airbag is rapidly released, forming a pulsed airflow that impacts the filter element. This is more effective in removing stubborn impurities from the filter surface, significantly improving self-cleaning efficiency, reducing the risk of filter clogging, and extending the stable operating cycle of the device. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of a gas spraying particulate exhaust gas treatment device provided in an embodiment of the present invention.

[0020] Figure 2 This is a partial perspective view of the filter element provided in an embodiment of the present invention.

[0021] Reference numerals: 1. Housing; 11. Air outlet; 12. Air inlet; 2. Filter element; 21. Filter plate; 22. Sliding rod; 23. Scraper; 24. Divider; 25. Base plate; 3. Drive mechanism; 31. Reciprocating screw; 32. Nut seat; 33. Motor; 4. Control mechanism; 41. Gear; 42. Rack; 43. Partition; 5. Elastic airbag; 6. Filter screen. Detailed Implementation

[0022] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0023] See Figure 1 and Figure 2 The present invention provides an embodiment of a gas spraying particulate exhaust gas treatment device, comprising: a housing 1, a filter element 2, a drive mechanism 3, and a control mechanism 4; the housing 1 has two air outlets 11 on its upper side and an air inlet 12 on its lower side, with the vertical projection of the air inlet 12 located between the two air outlets 11; the filter element 2 is disposed inside the housing 1, with its upper end hinged to the housing 1 and its lower end sliding against the inner bottom wall of the housing 1 to promote the accumulation of impurities on the inner bottom wall of the housing 1; the lower end of the filter element 2 adaptively extends and retracts during the sliding process and cleans itself; the drive mechanism 3 drives the filter element 2 to reciprocate; the reciprocating swing of the filter element 2 is controlled by the control mechanism 4 to open and close the two air outlets 11; and the control mechanism 4 controls the air outlet 11 on the corresponding side to open and the air outlet 11 on the opposite side to close according to the swing direction of the filter element 2.

[0024] In practice, the exhaust gas from the gas spraying particles enters the housing 1 through the air inlet 12 on the lower side of the housing 1. Since the vertical projection of the air inlet 12 is located between the two air outlets 11, the exhaust gas can naturally diffuse to both sides after entering, avoiding the direct emission of untreated dusty gas and causing environmental pollution. The drive mechanism 3 drives the filter element 2 to swing back and forth. Its upper end is hinged to the housing 1, and its lower end slides against the bottom wall of the housing 1. During the swing, the lower end can push the impurities on the bottom wall to a specific area like a scraper 23, which not only avoids the particles from scattering and causing secondary pollution, but also facilitates the centralized recycling and reuse of powder with recycling value, reducing resource waste. At the same time, the lower end of the filter element 2 will adaptively extend and retract when sliding, and scrape its own filter surface through the extension and retraction action, effectively cleaning the impurities adhering to the surface and ensuring stable filtration efficiency.

[0025] The filter element 2 slides against the housing 1 on both sides in the width direction to separate the chambers. When the filter element 2 swings to the left, it forms a forward filtration state, and the control mechanism 4 operates synchronously, opening the left air outlet 11 and closing the right air outlet 11, allowing the filtered clean gas to be discharged from the left air outlet 11. When the filter element 2 swings to the right, it switches to a reverse filtration state, and the control mechanism 4 closes the left air outlet 11 and opens the right air outlet 11, allowing the gas to be discharged from the right. This forward and reverse filtration mode, which switches according to the swing direction, combined with the reverse impact of the airflow to create a back-blowing effect, can further blow off particles attached to the filter surface, reducing the frequency of filter material replacement and thus reducing solid waste generation.

[0026] Furthermore, the reciprocating oscillation of filter element 2 changes the angle of the force exerted by the airflow at inlet 12 on filter element 2, causing dynamic changes in the direction and component of the impact force. On the one hand, it periodically disturbs the internal pores of the filter material, breaking the stable adhesion state of particles, assisting in the removal of impurities, and reducing the increase in energy consumption caused by filter pore blockage. On the other hand, it avoids excessive wear of local filter pores due to continuous stress, extending the service life of filter element 2 and reducing the environmental burden caused by consumable consumption. The overall design achieves a balance between high-efficiency purification, resource recovery, and low environmental impact through structural synergy, improving the environmental performance of exhaust gas treatment and conforming to the development concept of green production.

[0027] See Figure 1 and Figure 2 In other embodiments, the filter element 2 includes: a filter plate 21, a sliding rod 22, a scraper 23, a separator 24, and a base plate 25; multiple filter plates 21 are arranged sequentially in a vertical direction; except for the topmost filter plate 21, the remaining filter plates 21 are all provided with a sliding rod 22 and a scraper 23, the lower end of the sliding rod 22 is fixedly connected to the filter plate 21, the upper end of the sliding rod 22 is fixedly connected to the scraper 23, the scraper 23 slides against the side of the adjacent filter plate 21 above, and the sliding rod 22 is slidably mounted on the adjacent filter plate 21 above. Specifically, the bottommost filter plate 21 does not perform filtration and is flat. A separator 24 is provided between each two adjacent filter plates 21, and the separator 24 is installed on the two adjacent filter plates 21 respectively. The separator 24 deforms adaptively according to the distance between the two filter plates 21 to fill the gap between the two filter plates 21. The bottom plate 25 is slidably installed at the bottom of the box 1, and the bottommost filter plate 21 is hinged to the bottom plate 25, and the topmost filter plate 21 is hinged to the box 1. The drive mechanism 3 drives the bottom plate 25 to move back and forth.

[0028] In practice, the drive mechanism 3 is controlled to move, and the drive mechanism 3 drives the base plate 25 to move back and forth. During the sliding process, the base plate 25 pushes the impurities on the bottom wall of the box 1 to accumulate. At the same time, the base plate 25 drives multiple filter plates 21 to swing synchronously through the hinge relationship with the bottom filter plate 21. When the base plate 25 slides away from the air inlet 12, the filter element 2 swings outward around the hinge point between its top and the housing 1, increasing the distance between the upper and lower ends of the filter element 2 and the distance between adjacent filter plates 21. To this end, the separator 24 between adjacent filter plates 21 adapts to the change in distance, always tightly filling the gap to prevent unfiltered gas from leaking out and ensuring the airtightness of the filtration path. Simultaneously, the lower filter plate 21 moves the scraper 23 downward via the sliding rod 22. The scraper 23 maintains sliding contact with the side of the adjacent upper filter plate 21, scraping the surface of the upper filter plate 21 during movement to promptly remove attached impurities and prevent filter surface blockage from affecting filtration efficiency. When the base plate 25 slides closer to the air inlet 12, the filter element 2 swings inward, reducing the distance between its upper and lower ends and the adjacent filter plates 21. The separator 24 contracts synchronously to adapt to the change in gap, maintaining a sealed state. The lower filter plate 21 moves the scraper 23 upward via the sliding rod 22, continuing to scrape the surface of the upper filter plate 21 for cleaning. Furthermore, scrapers 23 and sliding rods 22 are provided on both sides of the filter plate 21, so that a bidirectional scraping structure is formed between adjacent filter plates 21, enabling the filter plates 21 to achieve simultaneous cleaning on both sides during the reciprocating swing process, which greatly improves the comprehensiveness and efficiency of self-cleaning.

[0029] See Figure 1 and Figure 2 In other embodiments, the separator 24 is an elastic stretching layer. Specifically, the elastic stretching layer can be made of rubber. The upper end of the elastic stretching layer is fixed to the upper filter plate 21, and the lower end of the elastic stretching layer is fixed to the lower filter plate 21. When the filter element 2 swings with the bottom plate 25, causing the distance between adjacent filter plates 21 to increase, the elastic stretching layer is stretched and extended. It maintains a tight fit with the filter plates 21 on both sides by its own elasticity, completely filling the enlarged gap and preventing unfiltered gas from escaping. When the distance between the filter plates 21 decreases, the elastic stretching layer automatically contracts and resets, still maintaining the airtightness of the filtration path.

[0030] Furthermore, the separator 24 can also have the following structure: the separator 24 includes a take-up roller, a spiral spring, and a take-up surface; the take-up roller is rotatably mounted on the edge of the upper filter plate 21, one end of the take-up surface is fixed to the take-up roller, and the other end is fixedly connected to the edge of the lower filter plate 21; the spiral spring is sleeved on the take-up roller, one end of which is fixedly connected to the take-up roller, and the other end is fixedly connected to the upper filter plate 21, for driving the take-up roller to automatically take up the take-up surface. The separator 24 achieves adaptive sealing through the cooperation of the take-up roller, the spiral spring, and the take-up surface: when the distance between adjacent filter plates 21 increases, the lower filter plate 21 drives the take-up surface to be pulled out synchronously from the take-up roller, the spiral spring is twisted and stores force, and after the take-up surface unfolds, it completely covers the gap between the filter plates 21, forming a sealing barrier; when the distance between the filter plates 21 decreases, the spiral spring releases its elastic force to drive the take-up roller to rotate in the opposite direction, automatically taking up the excess take-up surface, avoiding the accumulation of wrinkles that affect the swing of the filter plate 21, while the take-up surface always remains taut, ensuring the reliability of the gap seal.

[0031] See Figure 1 and Figure 2 In other embodiments, the length of the base plate 25 in the sliding direction is greater than the length of the air inlet 12 in the sliding direction of the base plate 25. This allows the base plate 25 to block the air inlet 12 when it moves to the middle position, thereby ensuring that the corresponding air outlet 11 completes the opening and closing switch first, and then resumes ventilation, effectively preventing gas leakage caused by the corresponding air outlet 11 not being completely closed; when the base plate 25 slides to the middle position, it blocks the air inlet 12, providing a buffer for the control mechanism 4 to drive the air outlet 11 to complete the opening and closing switch, ensuring that the switching action is completely in place; after the air outlet 11 is confirmed to be sealed, the base plate 25 continues to slide to open the air inlet 12, allowing the gas to be smoothly discharged through the new path when the filter element 2 has swung to the corresponding side.

[0032] Furthermore, an elastic airbag 5 is connected to the air inlet 12. When the base plate 25 slides to the middle position to block the air inlet 12, the connection between the elastic airbag 5 and the external exhaust gas pipeline remains unobstructed. The continuous input of exhaust gas causes the airbag to gradually expand, and the internal air pressure increases synchronously with the increase of the stored air volume, thus ensuring the continuous supply of external air without the need to stop the gas supply. When the base plate 25 slides away from the middle position and the air inlet 12 opens, the high-pressure exhaust gas accumulated in the airbag is rapidly released, forming a pulsed airflow that impacts the filter element 2. This is more conducive to peeling off the stubborn impurities attached to the surface of the filter plate 21, significantly improving the self-cleaning efficiency, reducing the risk of filter surface clogging, and extending the stable operation cycle of the device.

[0033] See Figure 1 and Figure 2In other embodiments, the drive mechanism 3 includes a reciprocating screw 31, a nut seat 32, and a motor 33. The reciprocating screw 31 is arranged along the sliding direction of the base plate 25 and is rotatably mounted on the housing 1. The nut seat 32 is fixedly mounted on the base plate 25 and is threadedly connected to the reciprocating screw 31. The motor 33 drives the reciprocating screw 31 to rotate. In specific implementation, the motor 33 is controlled to rotate, which in turn drives the reciprocating screw 31 to rotate, causing the nut seat 32 to move back and forth, thereby driving the base plate 25 to move back and forth.

[0034] See Figure 1 and Figure 2 In other embodiments, the control mechanism 4 includes: a gear 41, a rack 42, and a partition 43; the gear 41 is coaxially arranged with the hinge shaft at the upper end of the filter element 2, and the gear 41 is fixedly connected to the filter element 2; the gear 41 is slidably mounted on the housing 1, and the gear 41 is meshed with the rack 42; the two ends of the partition 43 are respectively arranged in correspondence with the two air outlets 11, and one end of the partition 43 slides through the corresponding air outlet 11 to close the air outlet 11. In practice, the swinging motion of the filter element 2 drives the gear 41 to rotate synchronously. The gear 41 meshes with the rack 42 fixed in the housing 1, converting the swinging motion into the linear sliding motion of the partition 43. When the filter element 2 swings to the left, the filter element 2 drives the partition 43 to slide to the right through the gear 41, thereby opening the air outlet 11 on the left and closing the air outlet 11 on the right. Conversely, when the filter element 2 swings to the right, the air outlet 11 on the left closes and the air outlet 11 on the right opens. In this way, the opening and closing states of the two air outlets 11 can be switched.

[0035] See Figure 1 and Figure 2 In another embodiment, a filter screen 6 is installed at each air outlet 11. In specific implementation, the filter screen 6 installed at each air outlet 11 forms an end-of-line interception barrier. Through the setting of the filter screen 6, the escaped incompletely treated exhaust gas can be filtered. When the gas flows to the air outlet 11 after being filtered by the filter element 2, the filter screen 6 can further capture the tiny particles remaining in the airflow. Even if a small amount of unfiltered exhaust gas leaks during the swing switching process of the filter plate 21, it will be effectively intercepted by the filter screen 6 at the air outlet 11, avoiding direct emission and pollution.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A device for treating exhaust gas from gas spraying particles, characterized in that, include: The box has two air outlets on its upper side and an air inlet on its lower side, with the vertical projection of the air inlet located between the two air outlets. A filter element is disposed inside the housing, with its upper end hinged to the housing and its lower end sliding against the bottom wall of the housing to promote the accumulation of impurities on the bottom wall of the housing; and the lower end of the filter element adaptively extends and retracts during the sliding process, and cleans itself. A drive mechanism that drives the filter element to reciprocate. and The control mechanism controls the opening and closing of the two air outlets by controlling the reciprocating oscillation of the filter element; and the control mechanism controls the air outlet on the corresponding side to open and the air outlet on the opposite side to close according to the oscillation direction of the filter element.

2. The gas spraying particulate exhaust gas treatment device according to claim 1, characterized in that, The filter element includes: a filter plate, a sliding rod, a scraper, a separator, and a base plate; multiple filter plates are arranged sequentially in a vertical direction; except for the topmost filter plate, each of the remaining filter plates is provided with a sliding rod and a scraper, the lower end of the sliding rod is fixedly connected to the filter plate, the upper end of the sliding rod is fixedly connected to the scraper, the scraper slides against the side of the filter plate adjacent above it, and the sliding rod is slidably mounted on the filter plate adjacent above it; a separator is provided between each pair of adjacent filter plates, and the separator is respectively mounted on the two adjacent filter plates, the separator adaptively deforming according to the distance between the two filter plates to fill the gap between the two filter plates; the base plate is slidably mounted on the bottom of the housing, and the bottommost filter plate is hinged to the base plate, and the topmost filter plate is hinged to the housing; the driving mechanism drives the base plate to reciprocate.

3. The gas spraying particulate exhaust gas treatment device according to claim 2, characterized in that, Both sides of the filter plate are equipped with scrapers and sliding rods.

4. The gas spraying particulate exhaust gas treatment device according to claim 2, characterized in that, The separator is an elastic stretchable layer.

5. The gas spraying particulate exhaust gas treatment device according to claim 2, characterized in that, The length of the base plate in the sliding direction is greater than the length of the air inlet in the sliding direction of the base plate.

6. The gas spraying particulate exhaust gas treatment device according to claim 5, characterized in that, An elastic airbag is connected to the air inlet.

7. The gas spraying particulate exhaust gas treatment device according to claim 2, characterized in that, The drive mechanism includes a reciprocating screw, a nut seat, and a motor; the reciprocating screw is arranged along the sliding direction of the base plate and is rotatably mounted on the housing; the nut seat is fixedly mounted on the base plate and is threadedly connected to the reciprocating screw; the motor drives the reciprocating screw to rotate.

8. The gas spraying particulate exhaust gas treatment device according to claim 1, characterized in that, The control mechanism includes a gear, a rack, and a partition; the gear is coaxially arranged with the hinge shaft at the upper end of the filter element, and the gear is fixedly connected to the filter element; the gear is slidably mounted on the housing, and the gear meshes with the rack; both ends of the partition are respectively arranged to correspond one-to-one with the two air outlets, and one end of the partition slides through the corresponding air outlet to close the air outlet.

9. The gas spraying particulate exhaust gas treatment device according to claim 1, characterized in that, Each of the aforementioned air outlets is equipped with a filter screen.

Images