An acrylic resin waste gas treatment filtering device

Abstract

The present application relates to waste gas treatment technical field, specifically to a kind of acrylic resin waste gas treatment filter equipment, including main body, the main body inside is equipped with purification cavity, the main body circumferential outer wall is fixedly connected with shunt pipe, the shunt pipe bottom is equipped with several air pipes, the air pipe bottom end is penetrated to the inside of purification cavity;The inside of the purification cavity is provided with purification device, the purification device includes rotation installation in the center position of the inside bottom of purification cavity drive shaft, the inside of the purification cavity is located at the top position of drive shaft and is provided with limit frame, the center position of the limit frame bottom is penetrated and is equipped with docking interface.This application is through gas distribution plate, push plate and filter assembly linkage, to establish gas-liquid mixing neutralization system, improve the neutralization of acidic substances and the absorption efficiency of soluble VOCs, reduce the subsequent pollutant load, push plate, filter assembly and other collaborative impurities, clean filter screen, prevent secondary pollution, prolong the service life of filter material.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and in particular to an acrylic resin waste gas treatment filtration device. Background Technology

[0002] The polymerization, purification, and granulation processes in the production of acrylic resins generate a large amount of waste gas, which contains unpolymerized acrylic acid and ester monomers, organic solvent vapors such as ethyl acetate / toluene, as well as aldehyde / ketone VOCs, resin dust, and viscous oligomers.

[0003] Untreated emissions of this type of waste gas pose significant health risks. VOCs, as key precursors to photochemical smog and haze, react with nitrogen oxides to generate secondary pollutants such as ozone, exacerbating air quality deterioration. Acidic gases and VOCs also irritate the human respiratory and cardiovascular systems, increasing the risk of respiratory infections and cardiovascular diseases, while simultaneously corroding surrounding buildings and equipment.

[0004] Currently, the industry mostly uses simple adsorption and filtration equipment, which has obvious drawbacks: First, the treatment scope is limited. Single activated carbon adsorption can only adsorb a portion of VOCs and is easily destroyed by acidic gases. Ordinary filter bags only intercept dust, neither of which can completely remove harmful substances. Second, the filter media has poor adaptability. Ordinary polyester filter bags and conventional adsorbents are easily corroded by acids and clogged by oligomers, requiring frequent replacement, increasing operation and maintenance costs, and posing a risk of direct emissions. Third, there is no systematic pretreatment. There are no neutralization or de-sticking modules. Raw waste gas directly enters the core filtration unit, causing filter media failure and making it difficult to consistently meet emission standards. Summary of the Invention

[0005] This invention provides an acrylic resin waste gas treatment and filtration device to solve the problem mentioned in the background art that existing acrylic resin waste gas filtration and purification devices typically use simple adsorption filtration devices to treat waste gas, resulting in poor treatment effects and difficulty in thoroughly removing harmful components from the waste gas.

[0006] To solve the above-mentioned technical problems, the present invention provides an acrylic resin waste gas treatment and filtration device, comprising a main body, a purification chamber inside the main body, a diversion pipe fixedly connected to the outer circumference of the main body, a plurality of vent pipes at the bottom of the diversion pipe, the bottom end of the vent pipes penetrating into the purification chamber; a purification device is provided inside the purification chamber, the purification device including a drive shaft rotatably mounted at the center of the bottom of the inner side of the purification chamber, a limit frame provided at the top of the drive shaft inside the purification chamber, a connecting interface penetrating at the center of the bottom of the limit frame, a connecting joint fixedly connected to the top of the drive shaft and rotatably connected to the inner wall of the connecting interface; a docking shaft rotatably connected inside the connecting interface above the connecting joint, a drive chamber being provided on the inner side of the docking shaft near the top, and a filter assembly being provided on the outer wall of the docking shaft near the drive chamber.

[0007] The present invention is further configured such that the filter assembly includes a fixed frame fixedly installed on the outer wall of the docking shaft, a scraper is provided on the outer wall of the fixed frame near the inner wall of the purification chamber, a plurality of drive shafts are rotatably connected inside the fixed frame, one end of one of the drive shafts extends into the drive chamber, a filter screen is provided on the surface of the drive shaft, a docking frame is provided on the outer wall of the fixed frame near the top of the filter screen, a collection chamber is opened inside the docking frame near the filter screen, and a sludge collection and water filter shell is slidably installed inside the collection chamber.

[0008] The present invention is further configured such that a baffle is provided on the top of the docking frame, a fixing block is fixedly connected to the bottom of the inner side of the collection chamber near the filter screen, a scraper three is hinged to the top of the fixing block, an elastic element is provided on the top of the fixing block with one end connected to the scraper three, a collection port is opened on the outer wall of the sludge collection filter shell near the scraper three, and a guide slope is provided at the bottom of the sludge collection filter shell.

[0009] The invention is further configured such that a passive gear is rotatably connected to the center position of the bottom of the inner side of the drive cavity, and a connecting rod is provided at the top of the passive gear, one end of which extends to the outside of the docking shaft. A fixing rod is fixedly connected to one end of the connecting rod located outside the docking shaft, and both ends of the fixing rod are fixedly connected to the inner wall of the purification cavity. A transmission gear two is rotatably connected inside the drive cavity corresponding to the position of the filter assembly, and the transmission gear two meshes with the passive gear.

[0010] The present invention is further configured such that a docking cavity is provided at the bottom of the docking shaft, and a plurality of docking teeth are evenly arranged on the inner wall of the docking cavity. A transmission gear is rotatably connected to the inside of the docking interface near the docking teeth, and the transmission gear meshes with the docking teeth. A drive gear is provided at the top center of the docking interface near the transmission gear, and the drive gear meshes with the transmission gear.

[0011] The present invention is further configured such that a plurality of fixed frames are fixedly connected to the outer circumference of the drive shaft, a plurality of push plates are disposed inside the fixed frames, and a scraper is disposed on one side of the fixed frames.

[0012] The present invention is further configured such that an air distribution plate is fixedly connected to the end of the vent pipe located inside the purification chamber, an exhaust pipe communicating with the purification chamber is provided at the top of the main body, and a drive motor is provided at the bottom of the main body corresponding to the drive shaft position, with the output end of the drive motor passing through the main body and fixedly connected to the drive shaft.

[0013] The beneficial effects of the acrylic resin waste gas treatment and filtration device of the present invention are as follows:

[0014] 1. This equipment improves waste gas purification efficiency and achieves deep removal of acidic substances and VOCs. Through the linkage of the air distribution plate, push plate, and filter components, it constructs a highly efficient gas-liquid mixing and neutralization system. The air distribution plate divides the concentrated airflow delivered by the ventilation pipe into fine bubbles, increasing the initial contact area between the waste gas and the purified liquid. The drive motor drives the drive shaft to rotate, which in turn drives the push plate in the fixed frame to rapidly agitate the purified liquid, generating turbulence. This not only "cuts" the bubble's movement path to extend its residence time but also prevents bubble aggregation, ensuring that acidic substances react fully with the purified liquid. Meanwhile, the drive shaft, through the transmission of the connector, drive gear and transmission gear one, drives the docking shaft to rotate clockwise, causing the filter assembly to rotate clockwise synchronously. The inclined filter screen drives the surrounding purified liquid to form a clockwise local swirling flow, which intertwines with the counterclockwise turbulence of the push plate to form a cross turbulence. This cross turbulence further breaks up bubbles, optimizes the spiral upward trajectory of bubbles, and pushes fresh purified liquid to the bubble-dense area, avoiding local purification liquid "failure". Ultimately, it greatly improves the neutralization efficiency of acidic substances and the absorption rate of soluble VOCs, and reduces the pollutant load in the subsequent combustion stage.

[0015] 2. Enhanced impurity targeting and filter self-cleaning reduce filter media wear. The equipment achieves efficient impurity treatment and filter screen protection through the synergistic action of the push plate, filter assembly, scraper three, elastic element, and sludge collection and water filter shell. The turbulent flow of the push plate lifts impurities (such as dust and viscous oligomers) from the bottom of the purification chamber upwards through vortex force. The clockwise rotation of the filter assembly causes the tilted filter screen to form a "reverse force" with the upward path of the impurities, actively receiving the impurities and flushing the filter screen surface with reverse liquid flow, promptly removing newly attached fine impurities. At the same time, the circulating operation of the filter screen moves the impurities towards the docking frame. Under the action of the elastic element, scraper three in the docking frame can automatically compensate for the gaps caused by filter screen jumping and deformation, always keeping it close to the filter screen to avoid viscous oligomer residue clogging the pores, and also buffer the pressure of the scraper on the filter screen to prevent scratching the filter screen. The scraped impurities and flushing purification liquid enter the slag collection filter shell along the scraper. The small holes in the shell achieve liquid-solid separation, allowing the purification liquid to flow back for reuse. The guide slope guides the impurities to gather at the lowest point. The whole process not only avoids secondary pollution caused by impurity backflow, but also reduces filter screen clogging and wear, and extends the service life of the filter media. Attached Figure Description

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the following description is provided in conjunction with the accompanying drawings.

[0017] Please provide a detailed explanation.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] Figure 1 This is a three-dimensional structural diagram of an acrylic resin waste gas treatment and filtration device according to the present invention.

[0020] Figure 2 This is a cross-sectional view of an acrylic resin waste gas treatment and filtration device according to the present invention.

[0021] Figure 3 This is a separation diagram of an acrylic resin waste gas treatment and filtration device according to the present invention.

[0022] Figure 4 This is a partial cross-sectional view of the purification device of an acrylic resin waste gas treatment and filtration equipment according to the present invention.

[0023] Figure 5 This is a diagram showing the separation of the filter components in an acrylic resin waste gas treatment and filtration device according to the present invention.

[0024] Figure 6 This is a cross-sectional view of the filter assembly of an acrylic resin waste gas treatment and filtration device according to the present invention.

[0025] The diagram is labeled as follows: 1. Main body; 11. Purification chamber; 12. Diverter pipe; 121. Vent pipe; 122. Air distribution plate; 13. Exhaust pipe; 14. Purification device; 141. Drive shaft; 1411. Drive motor; 142. Fixing frame; 1421. Push plate; 1422. Scraper 1; 1423. Connecting joint; 1424. Drive gear; 143. Limiting frame; 1431. Connecting interface; 1432. Transmission gear 1; 144. Connecting shaft; 1441. Connecting chamber; 1442. Connecting gear. ; 1443, Drive chamber; 1444, Driven gear; 1445, Transmission gear two; 1446, Fixed rod; 145, Filter assembly; 1451, Fixed frame; 1452, Scraper two; 1453, Drive shaft; 1454, Filter screen; 1455, Connecting frame; 14551, Collection chamber; 14552, Baffle; 1456, Fixed block; 14561, Scraper three; 14562, Elastic element; 1457, Sludge collection and water filter shell; 14571, Guide slope; 14572, Collection port. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a transmission connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two elements or the interaction between two elements.

[0028] Please see Figure 1 - Figure 6 An acrylic resin waste gas treatment and filtration device includes a main body 1, a purification chamber 11 is opened inside the main body 1, a diversion pipe 12 is fixedly connected to the outer circumference of the main body 1, and a plurality of ventilation pipes 121 are provided at the bottom of the diversion pipe 12, with the bottom end of the ventilation pipe 121 penetrating into the purification chamber 11.

[0029] The purification chamber 11 is equipped with a purification device 14. The purification device 14 includes a drive shaft 141 rotatably mounted at the center of the bottom of the inner side of the purification chamber 11. A limit frame 143 is provided at the top of the drive shaft 141 inside the purification chamber 11. A connecting interface 1431 is provided through the center of the bottom of the limit frame 143. A connecting head 1423 is fixedly connected to the top of the drive shaft 141 and rotatably connected to the inner wall of the connecting interface 1431. Several fixed frames 142 are fixedly connected to the outer circumference of the drive shaft 141. Several push plates 1421 are provided inside the fixed frames 142. A scraper 1422 is provided on one side of the fixed frames 142. An air distribution plate 122 is fixedly connected to the end of the vent pipe 121 located inside the purification chamber 11. An exhaust pipe 13 connected to the purification chamber 11 is provided at the top of the main body 1. A drive motor 1411 is provided at the bottom of the main body 1 corresponding to the position of the drive shaft 141. The output end of the drive motor 1411 passes through the main body 1 and is fixedly connected to the drive shaft 141.

[0030] A docking shaft 144 is rotatably connected inside the interface 1431, located above the docking connector 1423. A drive cavity 1443 is opened on the inner side of the docking shaft 144 near the top. A filter assembly 145 is provided on the outer wall of the docking shaft 144 near the drive cavity 1443.

[0031] By adopting the above technical solution, the diversion pipe 12 further diffuses the airflow through the end air distribution plate 122, avoiding excessively high local concentrations that could lead to insufficient reaction of the purification liquid. When the fixed frame 142 rotates with the drive shaft 141, the push plate 1421 agitates the purification liquid to enhance gas-liquid contact, and the scraper 1422 simultaneously cleans the deposits on the inner wall of the purification chamber 11. The docking shaft 144 transmits torque to the filter assembly 145 through the drive chamber 1443, causing the filter screen 1454 to rotate continuously and preventing local blockage by viscous oligomers. A multi-stage gear set transmits power from the drive shaft 141 to the docking shaft 144, achieving synchronous differential rotation between the filter assembly 145 and the main shaft, optimizing impurity removal efficiency. A through-type connection between the docking shaft 144 and the limiting frame 143 prevents radial displacement of the filter assembly 145, which could lead to seal failure.

[0032] The filter assembly 145 includes a fixed frame 1451 fixedly installed on the outer wall of the docking shaft 144. A scraper 1452 is provided on the outer wall of the fixed frame 1451 near the inner wall of the purification chamber 11. Several drive shafts 1453 are rotatably connected inside the fixed frame 1451. One end of one drive shaft 1453 extends into the drive chamber 1443. A filter screen 1454 is provided on the surface of the drive shaft 1453. A docking frame 1455 is provided on the outer wall of the fixed frame 1451 near the top of the filter screen 1454. A collection chamber 14551 is opened inside the docking frame 1455 near the filter screen 1454. A sludge collection and water filter shell 1457 is slidably installed inside the collection chamber 14551. A baffle 14552 is provided on the top of the docking frame 1455. A fixing block 1456 is fixedly connected to the bottom of the inner side of the collection chamber 14551 near the filter screen 1454. A scraper 14561 is hinged to the top of the fixing block 1456. An elastic element 14562 is provided on the top of the fixing block 1456, with one end connected to the scraper 14561. A collection port 14572 is opened on the outer wall of the sludge collection and filter shell 1457 near the scraper 14561. A guide slope 14571 is provided at the bottom of the sludge collection and filter shell 1457.

[0033] By adopting the above technical solution, the filter screen 1454, which is wrapped around the surface, is driven to rotate cyclically by the transmission gear 1445. This design ensures that the filter screen 1454 is always in a dynamic filtration state, avoiding static clogging. The fixing frame 1451 scrapes the inner wall of the purification chamber 11 synchronously with the scraper 1452 on its outer wall during rotation, preventing the accumulation of viscous substances. The collection chamber 14551 and the top of the filter screen 1454 form a semi-enclosed space, and the rotating filter screen 1454 carries impurities into this area. The baffle 14552 prevents the purification liquid from splashing, ensuring that impurities fall directionally into the collection chamber 14551. The scraper 14561, which is hinged to the fixing block 1456, maintains elastic contact with the filter screen 1454 through the elastic element 14562, which both adapts to the deformation of the filter screen 1454 and ensures scraping force, especially for viscous oligomers. The collection port 14572 is directly aligned with the trajectory of the scraper 14561, and the guide slope 14571 causes impurities to slide towards the bottom of the shell and concentrate. Small holes in the shell wall enable automatic return of the purified liquid, avoiding liquid waste. The fixing frame 1451 rotates synchronously with the docking shaft 144, while the internal transmission shaft 1453 achieves differential rotation through a gear set, forming relative movement between the filter screen 1454 and the purified liquid, enhancing the impurity removal effect.

[0034] A passive gear 1444 is rotatably connected to the center of the bottom of the inner side of the drive cavity 1443. A connecting rod is provided on the top of the passive gear 1444, one end of which extends to the outside of the docking shaft 144. A fixing rod 1446 is fixedly connected to one end of the connecting rod located outside the docking shaft 144. Both ends of the fixing rod 1446 are fixedly connected to the inner wall of the purification cavity 11. A transmission gear 1445 is rotatably connected inside the drive cavity 1443 to the position corresponding to the filter assembly 145. The transmission gear 1445 meshes with the passive gear 1444.

[0035] By adopting the above technical solution

[0036] The driven gear 1444 is rigidly connected to the fixed rod 1446 via a connecting rod. Both ends of the fixed rod 1446 are anchored to the inner wall of the purification chamber 11, forming stable static support points. This design ensures that the driven gear 1444 remains absolutely stationary during transmission. In addition to fixing the driven gear 1444, the fixed rod 1446 passes through the mating shaft 144, forming a radial constraint to prevent radial displacement of the mating shaft 144 during high-speed rotation, thus ensuring the meshing accuracy between the transmission gear 1445 and the driven gear 1444.

[0037] The bottom of the docking shaft 144 has a docking cavity 1441. The inner wall of the docking cavity 1441 is evenly provided with a number of docking teeth 1442. The inner part of the docking interface 1431 is rotatably connected to a transmission gear 1432 near the docking teeth 1442. The transmission gear 1432 meshes with the docking teeth 1442. The top center of the docking joint 1423 is provided with a drive gear 1424 near the transmission gear 1432. The drive gear 1424 meshes with the transmission gear 1432.

[0038] By adopting the above technical solution, the drive gear 1424 is fixed on the top of the mating joint 1423 and meshes with the transmission gear 1432, transmitting the rotational power of the drive shaft 141 to the mating shaft 144, ensuring synchronous differential movement between the mating shaft 144 and the drive shaft 141. The mating joint 1423 rotates within the mating interface 1431 and drives the transmission gear 1432 through the drive gear 1424, ensuring axial stability of power transmission and reducing radial offset of the mating shaft 144.

[0039] Working principle and usage process of this invention:

[0040] Purifying liquid is injected into the purification chamber 11 until the liquid level reaches the middle of the filter screen 1454. Then, the exhaust gas is transported to various ventilation pipes 121 through the diversion pipe 12, and the exhaust gas is evenly distributed to different positions inside the purification chamber 11 through the ventilation pipes 121. The air distribution plate 122 at the top of the ventilation pipe 121 has multiple small holes on its surface, which are used to divide the concentrated airflow from the ventilation pipe 121 into a large number of independent fine bubbles. This prevents the airflow from directly impacting the purifying liquid and forming large bubbles that rise rapidly to the liquid surface. The fine bubbles can significantly increase the reaction interface between acidic substances in the exhaust gas and the purifying liquid, allowing the neutralization reaction to be more complete. At the same time, it also makes it easier for some water-soluble VOCs (such as ethyl acetate) to be absorbed, reducing the pollutant load in the subsequent combustion stage.

[0041] Before injecting the exhaust gas into the purification chamber 11, the drive motor 1411 is started. The drive motor 1411 drives the drive shaft 141 to rotate counterclockwise. The rotation of the drive shaft 141 will cause the push plate 1421 in the fixed frame 142 to stir rapidly in the purification liquid. The rapid stirring of the push plate 1421 will generate turbulence, which will continuously "cut" the movement path of the bubbles, causing the bubbles to move in an irregular zigzag motion in the purification liquid instead of floating in a straight line, thereby prolonging the contact time between the bubbles and the purification liquid. At the same time, the turbulence will prevent the bubbles from agglomerating, ensuring that each small bubble can fully contact the purification liquid, making the neutralization reaction between acidic substances (such as acrylic acid) and purification liquid (such as NaOH) more thorough, and reducing the escape of unreacted acidic gas with the bubbles. While the fixed frame 142 is rotating, the inner wall of the purification chamber 11 will also be cleaned by the scraper 1422.

[0042] While the push plate 1421 agitates, it also causes the purified liquid to form a vortex flow inside the purification chamber 11. At the same time, the drive shaft 141 rotates, which also drives the top connector 1423 to rotate. The connector 1423 is set inside the interface 1431 to improve the stability of the drive shaft 141. The rotation of the connector 1423 will drive the drive gear 1424 to rotate. The rotation of the drive gear 1424 will drive the transmission gear 1432 to rotate. The rotation of the transmission gear 1432 will drive the docking shaft 144 to rotate clockwise through the docking teeth 1442.

[0043] As the docking shaft 144 rotates, it drives the filter assembly 145 to rotate synchronously. The filter screen 1454 in the filter assembly 145 is set at an angle. As the docking shaft 144 rotates, it drives the transmission gear 1445 to rotate around the driven gear 1444. Since the driven gear 1444 is fixed, it will passively rotate the transmission gear 1445 that meshes with it. The transmission shaft 1453, which extends to the drive cavity 1443 at one end, is fixedly connected to the transmission gear 1445. Therefore, the transmission gear 1445 will drive the transmission shaft 1453 to rotate. The rotation of the transmission shaft 1453 will drive the filter screen 1454 on its surface to rotate in a cycle.

[0044] The turbulence generated by the counterclockwise rotation of the push plate 1421 can already cut bubbles and prevent them from accumulating. When the filter assembly 145 rotates clockwise, its tilted filter screen 1454 will drive the surrounding purified liquid to form a local vortex in the clockwise direction. The two opposing liquid flows collide and intertwine inside the purification chamber 11, forming a more complex cross turbulence. This cross turbulence can further break up the tiny bubbles generated by the air distribution plate 122, changing the movement path of the bubbles from an "irregular zigzag" to a "spiral upward trajectory", and extending the residence time compared to single turbulence.

[0045] Simultaneously, the reverse flow continuously pushes the "fresh purified liquid" (liquid with unconsumed neutralizing components) towards the bubble-dense area, preventing localized "ineffectiveness" of the purified liquid and ensuring a more thorough neutralization reaction between acidic substances such as acrylic acid and NaOH, further reducing the amount of unabsorbed VOCs. The turbulence of the push plate 1421 is responsible for "sending impurities upwards," while the reverse rotation of the filter assembly 145 is responsible for "collecting impurities onto the filter screen 1454." Together, they form a "directional impurity delivery channel," allowing impurities to more precisely contact the filter screen 1454, improving interception efficiency while reducing the probability of impurities depositing at the bottom of the purification chamber 11.

[0046] When the filter assembly 145 rotates clockwise, the surface of the filter screen 1454 continuously contacts the "reverse liquid flow" brought about by the turbulence of the push plate 1421. This liquid flow creates a "scouring force" on the surface of the filter screen 1454, which can promptly wash away fine impurities (such as viscous oligomers) that have just adhered to the pores of the filter screen 1454, preventing impurities from accumulating on the screen surface. At the same time, the counter-current effect of the clockwise rotation of the filter screen 1454 and the counter-clockwise turbulence of the push plate 1421 creates "relative sliding friction" between the filter screen 1454 and the impurities, flushing some impurities into the docking frame 1455. The cyclical operation of the filter screen 1454 also drives the impurities to move into the docking frame 1455, where the scraper 14561 in the docking frame 1455 easily scrapes away the impurities from the surface of the filter screen 1454. The elastic element 14562 below scraper 3 14561 can automatically compensate for the gaps caused by the jumping and deformation of filter screen 1454, so that scraper 3 14561 always sticks to filter screen 1454, avoiding the viscous oligomer residue of acrylic acid waste gas from clogging the pores, and at the same time buffering the pressure of scraper 3 14561. Baffle 14552 is used to prevent the purified liquid driven by the rotation of filter assembly 145 from passing over filter screen 1454. The purified liquid and the scraped impurities will follow the scraper to the collection port 14572, and then enter the sludge and water collection shell 1457.

[0047] The slag collection and filter housing 1457 has multiple small holes that promptly filter out the purified liquid entering the housing, allowing the liquid to flow back to the purification chamber 11 for reuse. This prevents the purified liquid from being lost with impurities (reducing the frequency of replenishment and lowering costs). Simultaneously, it retains only solid impurities (such as viscous oligomers and dust) inside the housing, preventing secondary pollution caused by impurities mixing with the liquid and flowing back. The guide slope 14571 inside the slag collection and filter housing 1457 features a slanted design. This slanted design guides impurities to gather and facilitates cleaning. The inclined design allows impurities (including a small amount of residual liquid) to slide to the lowest point by gravity, preventing them from accumulating dispersedly inside the housing (especially suitable for viscous impurities in acrylic acid exhaust gas, preventing them from sticking to the housing wall). Further cleaning only requires addressing the concentrated impurities at the lowest point, eliminating the need for comprehensive cleaning and reducing downtime for maintenance.

[0048] In summary, compared with the prior art, the embodiments of the present invention have the following advantages:

[0049] Advantage 1: The diversion pipe 12 sends waste gas to the ventilation pipe 121, which then distributes the waste gas to the purification chamber 11. The air distribution plate 122 divides the airflow into fine bubbles. The drive motor 1411 drives the drive shaft 141 to rotate counterclockwise. The drive shaft 141 drives the push plate 1421 to stir the liquid and generate turbulence, which prolongs the bubble residence time and prevents aggregation, ensuring that acidic substances are fully neutralized with the purification liquid. The drive shaft 141 also drives the connector 1423 to rotate. Through the linkage of the drive gear 1424, the transmission gear 1432, and the docking teeth 1442 of the docking shaft 144, the docking shaft 144 drives the filter assembly 145 to rotate clockwise. The filter screen 1454 carries the liquid and forms a clockwise swirling flow, which intertwines with the turbulent flow to form a cross turbulent flow, further breaking up the bubbles and pushing fresh purification liquid to the bubble area, improving the neutralization and absorption efficiency of easily soluble VOCs, and solving the problem of incomplete treatment.

[0050] Advantage 2: When the filter assembly 145 rotates clockwise, the filter screen 1454 is flushed by the reverse flow of turbulent liquid from the push plate 1421, washing away fine impurities and preventing clogging; the filter screen 1454 generates friction with the turbulent flow, pushing impurities into the docking frame 1455, and the filter screen 1454 circulates and carries impurities towards the docking frame 1455; the scraper 3 14561 uses the elastic element 14562 to compensate for the gap of the filter screen 1454 and sticks to scrape impurities, and also buffers pressure to prevent scratching the filter screen 1454; impurities and liquid enter the slag collection filter shell 1457, where liquid and solid separation is achieved through small holes, preventing impurities from flowing back, extending the life of the filter screen 1454 and reducing operation and maintenance costs.

[0051] Advantage 3: The coupling 1423 of the drive shaft 141 is embedded in the coupling interface 1431 of the limit frame 143, providing stable support and preventing deviation; the drive shaft 141 drives the drive gear 1424 to rotate, which is linked by the transmission gear 1432 and the coupling gear 1442 of the docking shaft 144, ensuring that the push plate 1421 and the filter assembly 145 rotate synchronously, reducing transmission jamming; when the fixed frame 142 rotates, the scraper 1422 cleans the inner wall of the purification chamber 11, preventing impurities from adhering, corroding, and accumulating, thus affecting liquid circulation and ensuring stable operation of the equipment.

[0052] Fourthly, the small holes in the slag collection and filter shell 1457 allow the purified liquid to flow back into the purification chamber 11, reducing loss and replenishment costs; the guide slope 14571 guides impurities to the lowest point, facilitating cleaning and reducing downtime; a single drive motor 1411 drives the drive shaft 141, push plate 1421, filter assembly 145, and filter screen 1454, eliminating the need for multiple power sources, reducing energy consumption and operational complexity, and making it suitable for continuous industrial production.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An acrylic resin waste gas treatment and filtration device, characterized in that, include: The main body (1) has a purification chamber (11) inside. A diversion pipe (12) is fixedly connected to the outer circumference of the main body (1). Several ventilation pipes (121) are provided at the bottom of the diversion pipe (12). The bottom end of the ventilation pipe (121) extends into the purification chamber (11). The purification chamber (11) is equipped with a purification device (14). The purification device (14) includes a drive shaft (141) rotatably mounted at the center of the bottom of the inner side of the purification chamber (11). A limit frame (143) is provided at the top of the drive shaft (141) inside the purification chamber (11). A connecting interface (1431) is provided through the center of the bottom of the limit frame (143). A connecting head (1423) is fixedly connected to the top of the drive shaft (141) and rotatably connected to the inner wall of the connecting interface (1431). The docking interface (1431) is rotatably connected to a docking shaft (144) located above the docking connector (1423). A drive cavity (1443) is opened on the inner side of the docking shaft (144) near the top. A filter assembly (145) is provided on the outer wall of the docking shaft (144) near the drive cavity (1443). The filter assembly (145) includes a mounting bracket (1451) fixedly installed on the outer wall of the docking shaft (144). Several drive shafts (1453) are rotatably connected inside the mounting bracket (1451). One end of one of the drive shafts (1453) extends into the drive cavity (1443). A filter screen (1454) is provided on the surface of the drive shaft (1453). A docking frame is provided on the outer wall of the mounting bracket (1451) near the top of the filter screen (1454). (1455) A collection chamber (14551) is provided inside the docking frame (1455) near the filter screen (1454). A fixing block (1456) is fixedly connected to the bottom of the inner side of the collection chamber (14551) near the filter screen (1454). A scraper three (14561) is hinged to the top of the fixing block (1456). An elastic element (14562) is provided on the top of the fixing block (1456) with one end connected to the scraper three (14561). A passive gear (1444) is rotatably connected to the center of the bottom of the inner side of the drive cavity (1443). A connecting rod is provided on the top of the passive gear (1444), one end of which extends to the outside of the docking shaft (144). A fixing rod (1446) is fixedly connected to one end of the connecting rod located outside the docking shaft (144). Both ends of the fixing rod (1446) are fixedly connected to the inner wall of the purification cavity (11). A transmission gear (1445) is rotatably connected inside the drive cavity (1443) at the position corresponding to the filter assembly (145). The transmission gear (1445) meshes with the passive gear (1444). The bottom of the docking shaft (144) is provided with a docking cavity (1441), and a plurality of docking teeth (1442) are evenly arranged on the inner wall of the docking cavity (1441). A transmission gear (1432) is rotatably connected to the inside of the docking interface (1431) near the docking teeth (1442). The transmission gear (1432) meshes with the docking teeth (1442). A drive gear (1424) is provided at the top center of the docking joint (1423) near the transmission gear (1432). The drive gear (1424) meshes with the transmission gear (1432).

2. The acrylic resin waste gas treatment and filtration equipment according to claim 1, characterized in that: The outer wall of the fixed frame (1451) is provided with a scraper (1452) near the inner wall of the purification chamber (11), and a slag collection filter shell (1457) is slidably installed inside the collection chamber (14551).

3. The acrylic resin waste gas treatment and filtration equipment according to claim 2, characterized in that: The top of the docking frame (1455) is provided with a baffle (14552), the outer wall of the slag collection filter shell (1457) is provided with a collection port (14572) near the scraper three (14561), and the bottom of the slag collection filter shell (1457) is provided with a guide slope (14571).

4. The acrylic resin waste gas treatment and filtration equipment according to claim 1, characterized in that: The drive shaft (141) has several fixed frames (142) fixedly connected to its outer circumference. Several push plates (1421) are provided inside the fixed frames (142). A scraper (1422) is provided on one side of the fixed frames (142).

5. The acrylic resin waste gas treatment and filtration equipment according to claim 1, characterized in that: The end of the vent pipe (121) located inside the purification chamber (11) is fixedly connected to the air distribution plate (122). The top of the main body (1) is provided with an exhaust pipe (13) that communicates with the purification chamber (11). The bottom of the main body (1) is provided with a drive motor (1411) corresponding to the position of the drive shaft (141). The output end of the drive motor (1411) passes through the main body (1) and is fixedly connected to the drive shaft (141).

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