Acrylic resin waste gas treatment and filtration equipment

Abstract

The invention relates to the technical field of waste gas treatment, in particular to acrylic resin waste gas treatment filtering equipment which comprises a main body, a purification cavity is formed in the main body, a flow dividing pipe is fixedly connected to the outer wall of the circumference of the main body, a plurality of ventilation pipes are arranged at the bottom of the flow dividing pipe, and the bottom ends of the ventilation pipes penetrate into the purification cavity; a purification device is arranged in the purification cavity and comprises a driving shaft rotationally mounted in the center of the bottom of the inner side of the purification cavity, a limiting frame is arranged at the position, located at the top of the driving shaft, in the purification cavity, and a butt joint opening is formed in the center of the bottom of the limiting frame in a penetrating mode. Through linkage of the gas distribution plate, the push plate and the filter assembly, a gas-liquid mixing and neutralizing system is established, the acidic substance neutralization and easily soluble VOCs absorption efficiency is improved, the subsequent pollutant load is reduced, and the push plate, the filter assembly and the like cooperate to block impurities, clean a filter screen, prevent secondary pollution and prolong the service life of a filter material.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, in particular to an acrylic resin waste gas treatment filtering equipment. BACKGROUND

[0002] The polymerization, purification, granulation and other links of acrylic resin production will produce a large amount of waste gas, which contains un-polymerized acrylic acid and ester monomers, ethyl acetate / toluene organic solvent vapor, and also contains aldehyde / ketone VOCs, resin dust and viscous oligomers.

[0003] The untreated emission of such waste gas is harmful, among which VOCs as the core precursor of photochemical smog and haze, will react with nitrogen oxides to generate ozone and other secondary pollutants, and aggravate air quality deterioration. Acid gas and VOCs will also stimulate the respiratory and cardiovascular systems of the human body, increase the risk of respiratory tract infection and cardiovascular disease, and also corrode surrounding buildings and equipment.

[0004] The current industry mostly uses simple adsorption filtering equipment, which has obvious defects: first, the treatment dimension is single, single activated carbon adsorption can only adsorb part of VOCs, and is easy to be damaged by acid gas, ordinary filter bag filtration only intercepts dust, and neither can completely eliminate harm; second, the filter material has poor adaptability, ordinary polyester filter bag and conventional adsorbent are easy to be corroded by acid and blocked by oligomers, and need to be replaced frequently, which increases operation and maintenance cost and has the risk of direct discharge; third, there is no systematic pretreatment, no neutralization and sticky module is set, and the original waste gas directly enters the core filtering unit, which causes the filter material to fail and the emission to be difficult to stabilize and meet the standard. SUMMARY

[0005] The acrylic resin waste gas treatment filtering equipment solves the problem that the existing acrylic resin waste gas filtering and purifying equipment generally uses simple adsorption filtering equipment to treat waste gas, and the treatment effect is poor, and harmful components in waste gas are difficult to remove completely.

[0006] To solve the above technical problems, the present application adopts one technical scheme: provide a kind of acrylic resin waste gas treatment filtering equipment, including main body, the inside of the main body is equipped with purification cavity, the circumference outer wall of the main body is fixedly connected with shunt pipe, the bottom of the shunt pipe is equipped with several air pipes, and the bottom of the air pipe is penetrated to the inside of purification cavity;The inside of the purification cavity is provided with purification device, the purification device includes the drive shaft that is rotatably installed in the bottom center position of the inside of purification cavity, the inside of the purification cavity is located at the top position of drive shaft and is provided with limit support, the bottom center position of the limit support is penetrated and is equipped with the interface, the top of the drive shaft is fixedly connected with the interface and is rotatably connected with the interface inner wall, the interface inside is rotatably connected with the interface shaft above the interface, the interface shaft is equipped with drive cavity in the inside near the top position, and the interface shaft is equipped with filter assembly on the outer wall near the drive cavity position.

[0007] The present application further provides that the filter assembly includes a fixed frame fixedly installed on the outer wall of the interface shaft, a scraper No. 2 is arranged on the outer wall of the fixed frame near the inner wall of the purification cavity, a plurality of transmission shafts are rotatably connected in the fixed frame, one end of one of the transmission shafts extends into the drive cavity, a filter screen is arranged on the surface of the transmission shaft, an interface frame is arranged on the outer wall of the fixed frame near the top of the filter screen, a collection cavity is formed in the interface frame inside near the filter screen, and a slag collection and water filtering shell is slidably installed in the collection cavity.

[0008] The present application further provides that the interface frame is provided with a baffle on the top, a fixed block is fixedly connected to the inner bottom of the collection cavity near the filter screen, a scraper No. 3 is hingedly connected to the top of the fixed block, an elastic member having one end connected to the scraper No. 3 is arranged on the top of the fixed block, a collection opening is formed in the outer wall of the slag collection and water filtering shell near the scraper No. 3, and a flow guide slope is arranged on the bottom of the slag collection and water filtering shell.

[0009] The present application further provides that a driven gear is rotatably connected to the center of the inner bottom of the drive cavity, a connecting rod having one end penetrating to the outside of the interface shaft is arranged on the top of the driven gear, a fixed rod is fixedly connected to one end of the connecting rod at the outside of the interface shaft, the fixed rod is fixedly connected to the inner wall of the purification cavity at both ends, a second transmission gear is rotatably connected to the drive cavity inside corresponding to the filter assembly, and the second transmission gear is engaged with the driven gear.

[0010] The present application further provides that the interface shaft is provided with an interface cavity at the bottom, a plurality of interface teeth are uniformly arranged on the inner wall of the interface cavity, a first transmission gear is rotatably connected to the interface inside near the interface teeth, the first transmission gear is engaged with the interface teeth, a drive gear is arranged on the top center of the interface head near the first transmission gear, and the drive gear is engaged with the first transmission gear.

[0011] The application is further provided with a plurality of fixed frames fixedly connected to the outer wall of the driving shaft, a plurality of push plates arranged inside the fixed frames, and a scraper plate one arranged on one side of the fixed frame.

[0012] The application is further provided with a gas distribution plate fixedly connected to the end of the air pipe inside the purification cavity, an exhaust pipe arranged on the top of the main body and connected to the purification cavity, a driving motor arranged at the bottom of the main body corresponding to the position of the driving shaft, and the output end of the driving motor penetrating through the main body and fixedly connected to the driving shaft.

[0013] The acrylic resin waste gas treatment filtering equipment has the following advantages:

[0014] 1. The waste gas purification efficiency is improved, and the acidic substances and VOCs are deeply removed. The equipment links the gas distribution plate, the push plate and the filtering assembly to build an efficient gas-liquid mixing and neutralization system. The gas distribution plate divides the concentrated airflow delivered by the air pipe into small bubbles, expanding the initial contact area of the waste gas and the purification liquid. The driving motor drives the driving shaft to rotate, and then drives the push plate in the fixed frame to quickly stir the turbulence in the purification liquid. Not only does it "cut" the bubble movement path to extend its residence time, but it also prevents bubbles from gathering to ensure that the acidic substances and the purification liquid fully react. At the same time, the driving shaft drives the counter shaft to rotate clockwise through the adapter, the driving gear and the transmission gear one, which drives the filtering assembly to rotate clockwise synchronously. The inclined filter screen drives the surrounding purification liquid to form a clockwise local rotational flow, which interweaves with the counterclockwise turbulence of the push plate to form cross turbulence. The cross turbulence further breaks the bubbles, optimizes the bubble spiral rising trajectory, and also pushes fresh purification liquid to the bubble dense area to avoid local purification liquid "failure", ultimately greatly improves the neutralization efficiency of acidic substances and the absorption rate of soluble VOCs, and reduces the pollutant load of the subsequent combustion link.

[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 It is a partial sectional view of a purification device of the acrylic resin waste gas treatment filtering equipment according to the present application;

[0023] Figure 5 It is a sectional view of a filtering assembly of the acrylic resin waste gas treatment filtering equipment according to the present application;

[0024] Figure 6 It is a sectional view of a filtering assembly of the acrylic resin waste gas treatment filtering equipment according to the present application.

[0025] In the figure, marked as: 1, main body; 11, purification cavity; 12, shunt pipe; 121, air pipe; 122, air distribution plate; 13, exhaust pipe; 14, purification device; 141, driving shaft; 1411, driving motor; 142, fixed frame; 1421, push plate; 1422, scraper one; 1423, butt joint; 1424, driving gear; 143, limiting frame; 1431, butt joint; 1432, transmission gear one; 144, butt joint shaft; 1441, butt joint cavity; 1442, butt joint tooth; 1443, driving cavity; 1444, passive gear; 1445, transmission gear two; 1446, fixed rod; 145, filtering assembly; 1451, fixed frame; 1452, scraper two; 1453, transmission shaft; 1454, filter screen; 1455, butt joint frame; 14551, collection cavity; 14552, baffle; 1456, fixed block; 14561, scraper three; 14562, elastic member; 1457, slag collection and water filtering shell; 14571, flow guide inclined surface; 14572, collection port. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict; the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0027] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left" and "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated position or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise specifically defined and limited, the term "connection" should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, can also be integrated; can be mechanical connection, can also be transmission connection; can be direct connection, can also be indirect connection through intermediate medium, or internal communication of two elements or interaction relationship between two elements.

[0028] Please refer to Figure 1 - Figure 6 An acrylic resin waste gas treatment filtering device, comprising a main body 1, a purification cavity 11 is opened in the main body 1, a shunt pipe 12 is fixedly connected to the circumferential outer wall of the main body 1, a plurality of air pipes 121 are arranged at the bottom of the shunt pipe 12, and the bottom ends of the air pipes 121 penetrate into the inside of the purification cavity 11;

[0029] A purification device 14 is arranged in the purification cavity 11, the purification device 14 comprises a driving shaft 141 rotatably installed at the center position of the inside bottom of the purification cavity 11, a limiting frame 143 is arranged at the top position of the inside of the purification cavity 11, a docking port 1431 is penetratingly arranged at the center position of the bottom of the limiting frame 143, a docking head 1423 is fixedly connected to the top end of the driving shaft 141 and rotatably connected to the inner wall of the docking port 1431, a plurality of fixed frames 142 are fixedly connected to the circumferential outer wall of the driving shaft 141, a plurality of push plates 1421 are arranged in the fixed frames 142, a scraper 1 1422 is arranged on one side of the fixed frame 142, a gas distribution plate 122 is fixedly connected to the end of the air pipe 121 on the inside of the purification cavity 11, an exhaust pipe 13 is arranged on the top of the main body 1 and communicates with the purification cavity 11, a driving motor 1411 is arranged at the position corresponding to the driving shaft 141 at the bottom of the main body 1, and the output end of the driving motor 1411 penetrates through the main body 1 and is fixedly connected with the driving shaft 141;

[0030] A docking shaft 144 is rotatably connected to the inside of the docking port 1431 and located above the docking head 1423, a driving cavity 1443 is arranged on the inside of the docking shaft 144 and close to the top position, and a filtering assembly 145 is arranged on the outer wall of the docking shaft 144 and close to the driving cavity 1443.

[0031] By adopting the above technical scheme, the shunt pipe 12 further diffuses the gas flow through the end gas distribution plate 122, avoiding excessive local concentration leading to insufficient reaction of the purification liquid. When the fixed frame 142 rotates with the driving shaft 141, the push plate 1421 stirs the purification liquid to enhance gas-liquid contact, and the scraper plate 1422 synchronously cleans the deposits on the inner wall of the purification cavity 11. The butt joint shaft 144 transmits torque to the filter assembly 145 through the driving cavity 1443, so that the filter screen 1454 continuously rotates to avoid local blockage of viscous oligomers. The multi-stage gear set transmits power from the driving shaft 141 to the butt joint shaft 144, realizing synchronous differential rotation of the filter assembly 145 and the main shaft, optimizing impurity stripping efficiency. The through butt joint shaft 144 and the limiting frame 143 prevent radial deviation of the filter assembly 145 from causing sealing failure.

[0032] The filter assembly 145 includes a fixed frame 1451 fixedly installed on the outer wall of the butt joint shaft 144, a scraper plate 1452 arranged on the outer wall of the fixed frame 1451 close to the inner wall of the purification cavity 11, a plurality of transmission shafts 1453 rotatably connected inside the fixed frame 1451, one end of one of the transmission shafts 1453 extending into the driving cavity 1443, a filter screen 1454 arranged on the surface of the transmission shaft 1453, a butt joint frame 1455 arranged on the outer wall of the fixed frame 1451 close to the top of the filter screen 1454, a collection cavity 14551 opened inside the butt joint frame 1455 close to the filter screen 1454, and a slag and water filtering shell 1457 slidably installed inside the collection cavity 14551. The top of the butt joint frame 1455 is provided with a baffle 14552, the inner bottom of the collection cavity 14551 is fixedly connected with a fixed block 1456 close to the filter screen 1454, the top of the fixed block 1456 is hingedly connected with a scraper plate 14561, the top of the fixed block 1456 is provided with an elastic element 14562 connected with one end of the scraper plate 14561, and the outer wall of the slag and water filtering shell 1457 is provided with a collection opening 14572 close to the scraper plate 14561.

[0033] By adopting the above technical scheme, the surface-wrapped filter screen 1454 is driven to circulate by the transmission gear two 1445. This design keeps the filter screen 1454 in a dynamic filtering state all the time, avoiding static clogging. The fixed frame 1451 is synchronously scraped with the inner wall of the purification cavity 11 when rotating by the scraper two 1452 on the outer wall, preventing viscous material from accumulating. The collection cavity 14551 forms a semi-closed space with the top of the filter screen 1454, and the rotating filter screen 1454 brings impurities into this area. The baffle 14552 prevents the purification liquid from splashing, ensuring that the impurities fall into the collection cavity 14551 in a directional manner. The scraper three 14561 hinged to the fixed block 1456 is kept in elastic contact with the filter screen 1454 by the elastic member 14562, which not only adapts to the deformation of the filter screen 1454 but also ensures the scraping intensity, especially for viscous oligomers. The collection port 14572 is directly opposite the falling track of the scraper three 14561, and the flow guide slope 14571 causes the impurities to slide to the bottom of the shell for concentration. The shell wall hole realizes automatic backflow of the purification liquid, avoiding liquid waste. The fixed frame 1451 rotates synchronously with the butt joint shaft 144, while the internal transmission shaft 1453 rotates at a differential speed through the gear set, forming the relative motion of the filter screen 1454 and the purification liquid, and enhancing the impurity stripping effect.

[0034] The passive gear 1444 is rotatably connected to the center position of the inner bottom of the driving cavity 1443, and a connecting rod penetrating to the outside of the butt joint shaft 144 is arranged at the top of the passive gear 1444. One end of the connecting rod fixedly connected with the fixed rod 1446 is located at the outside of the butt joint shaft 144, and the other end of the fixed rod 1446 is fixedly connected with the inner wall of the purification cavity 11. The transmission gear two 1445 is rotatably connected to the position of the filter assembly 145 in the driving cavity 1443, and the transmission gear two 1445 is engaged with the passive gear 1444.

[0035] By adopting the above technical scheme,

[0036] The passive gear 1444 is rigidly connected with the fixed rod 1446 through the connecting rod, and the two ends of the fixed rod 1446 are anchored to the inner wall of the purification cavity 11, forming a stable static support point. This design ensures that the passive gear 1444 remains absolutely stationary during transmission. In addition to fixing the passive gear 1444, the fixed rod 1446 penetrates the butt joint shaft 144 to form a radial constraint, preventing the butt joint shaft 144 from radially deviating when rotating at high speed, and ensuring the engagement accuracy of the transmission gear two 1445 and the passive gear 1444.

[0037] The bottom of the docking shaft 144 is provided with a docking cavity 1441, and the inner wall of the docking cavity 1441 is uniformly provided with a plurality of docking teeth 1442. The inside of the docking port 1431 is rotationally connected with a transmission gear one 1432 at a position close to the docking teeth 1442, the transmission gear one 1432 is engaged with the docking teeth 1442, and the top center of the docking head 1423 is provided with a driving gear 1424 at a position close to the transmission gear one 1432, and the driving gear 1424 is engaged with the transmission gear one 1432.

[0038] By adopting the above technical scheme, the driving gear 1424 is fixed at the top of the docking head 1423 and engaged with the transmission gear one 1432, so as to transmit the rotating power of the driving shaft 141 to the docking shaft 144, thereby ensuring the synchronous differential motion of the docking shaft 144 and the driving shaft 141. The docking head 1423 rotates in the docking port 1431 and drives the transmission gear one 1432 through the driving gear 1424, thereby ensuring the axial stability of power transmission and reducing the radial deviation of the docking shaft 144.

[0039] The working principle and use process of the embodiment of the present application are as follows:

[0040] The purification liquid is injected into the inside of the purification cavity 11, so that the liquid level of the purification liquid reaches the middle position of the filter screen 1454, and then the exhaust gas is transported into each air pipe 121 through the shunt pipe 12, and the exhaust gas is uniformly shunted to different positions inside the purification cavity 11 through the air pipe 121. The surface of the air distribution plate 122 at the top end of the air pipe 121 is provided with a plurality of small holes, which are used to divide the concentrated airflow transported by the air pipe 121 into a large number of independent small bubbles, so as to avoid that the airflow directly impacts the purification liquid to form large bubbles and rapidly rises to the liquid surface. The small bubbles can greatly increase the reaction interface between the acidic substances in the exhaust gas and the purification liquid, so that the neutralization reaction is more sufficient. At the same time, part of the VOCs (such as ethyl acetate) which are easily soluble in water are more easily absorbed, thereby reducing the pollutant load in the subsequent combustion link.

[0041] Before the exhaust gas is injected into the inside of the purification cavity 11, the driving motor 1411 is started, the driving motor 1411 drives the driving shaft 141 to rotate counterclockwise, the rotation of the driving shaft 141 drives the pushing plate 1421 in the fixed frame 142 to rapidly stir in the purification liquid, the rapid stirring of the pushing plate 1421 generates turbulence, which constantly "cuts" the bubble movement path to make the bubbles do irregular broken line motion in the purification liquid instead of straight line floating, thereby prolonging the contact time of the bubbles and the purification liquid. At the same time, the turbulence prevents the bubbles from gathering, so that each small bubble can fully contact the purification liquid, the neutralization reaction between the acidic substances (such as acrylic acid) and the purification liquid (such as NaOH) is more thorough, and the unreacted acidic gas escapes with the bubbles. The fixed frame 142 rotates and also cleans the inner wall of the purification cavity 11 through the scraper one 1422.

[0042] The pushing plate 1421 agitates and also causes the purification liquid to form a vortex flow inside the purification cavity 11. The driving shaft 141 rotates and also causes the top adapter 1423 to rotate. The adapter 1423 is arranged inside the adapter interface 1431 to improve the stability of the driving shaft 141. The rotation of the adapter 1423 causes the driving gear 1424 to rotate, which in turn causes the transmission gear one 1432 to rotate, which in turn causes the adapter shaft 144 to rotate clockwise through the adapter teeth 1442.

[0043] The adapter shaft 144 rotates and also causes the filter assembly 145 to rotate synchronously. The filter screen 1454 in the filter assembly 145 is arranged obliquely. The rotation of the adapter shaft 144 causes the transmission gear two 1445 to rotate around the passive gear 1444. The passive gear 1444 is fixed and therefore causes the transmission gear two 1445 engaged therewith to rotate passively. The transmission shaft 1453 extending into the driving cavity 1443 is fixedly connected to the transmission gear two 1445, so the transmission gear two 1445 causes the transmission shaft 1453 to rotate, which in turn causes the filter screen 1454 on the surface of the transmission shaft 1453 to rotate cyclically.

[0044] The turbulence generated by the counterclockwise rotation of the pushing plate 1421 can itself cut bubbles and prevent aggregation. When the filter assembly 145 rotates clockwise, the obliquely arranged filter screen 1454 causes the surrounding purification liquid to form a local clockwise rotational flow. The two opposite liquid flows collide and interweave inside the purification cavity 11, forming more complex cross-turbulence. This cross-turbulence can further break up the small bubbles generated by the air distribution plate 122, changing the movement path of the bubbles from an "irregular broken line" to a "spiral upward trajectory", and further prolonging the residence time.

[0045] At the same time, the reverse liquid flow continuously pushes "fresh purification liquid" (liquid without consumed neutralizing components) to the bubble dense area, avoiding local purification liquid "failure", allowing the neutralization reaction of acidic substances such as acrylic acid and NaOH to be more complete, and further reducing the amount of unabsorbed VOCs. The turbulence of the pushing plate 1421 is responsible for "sending impurities upwards", and the reverse rotation of the filter assembly 145 is responsible for "connecting impurities to the filter screen 1454". The two work together to form a "directed impurity transport channel", allowing impurities to contact the filter screen 1454 more accurately, improving interception efficiency while reducing the probability of impurities depositing at the bottom of the purification cavity 11.

[0046] When the filter assembly 145 rotates clockwise, the surface of the filter screen 1454 continuously contacts the "reverse flow" caused by the push plate 1421, which forms a "scouring force" on the surface of the filter screen 1454, and can timely wash away the fine impurities (such as viscous oligomers) just attached to the pores of the filter screen 1454, avoiding the accumulation of impurities on the screen surface. At the same time, the clockwise rotation of the filter screen 1454 and the counterclockwise turbulent flow of the push plate 1421 have a reverse effect, which causes "relative sliding friction" between the filter screen 1454 and the impurities, and some impurities are washed into the abutting frame 1455, and the impurities are also moved to the abutting frame 1455 by the circulating operation of the filter screen 1454. The scraper three 14561 in the abutting frame 1455 easily scrapes the impurities on the surface of the filter screen 1454. The elastic member 14562 below the scraper three 14561 can automatically compensate the gap caused by the jumping and deformation of the filter screen 1454, so that the scraper three 14561 is always close to the filter screen 1454, avoiding the residual viscous oligomers of acrylic acid waste gas from blocking the pores, and buffering the pressure of the scraper three 14561. The baffle 14552 is used to prevent the purified liquid driven by the rotation of the filter assembly 145 from washing over the filter screen 1454. The purified liquid and the scraped impurities will flow along the scraper to the collection port 14572, and then enter the slag and water filtering shell 1457.

[0047] The slag and water filtering shell 1457 is provided with a plurality of small holes, which can timely filter the purified liquid entering the shell, so that the liquid is returned to the purification cavity 11 for reuse, avoiding the loss of the purified liquid with the impurities (reducing the addition frequency and reducing the cost), and at the same time, only the solid impurities (such as viscous oligomers and dust) are left in the shell, avoiding the secondary pollution caused by the mixture of impurities and liquid flowing back. The guide slope 14571 inside the slag and water filtering shell 1457 is designed with a cutting slope, which guides the impurities to gather and facilitates cleaning. The inclined design allows the impurities (containing a small amount of residual liquid) to slide to the lowest point by gravity, and will not be dispersed and accumulated in the shell (especially suitable for viscous impurities of acrylic acid waste gas, avoiding sticking to the shell wall). During continuous cleaning, only the concentrated impurities at the lowest point need to be treated, without the need for overall cleaning, reducing downtime maintenance time.

[0048] In summary, compared with the prior art, the embodiment of the present application has the following advantages:

[0049] Advantage one, the shunt pipe 12 sends the exhaust gas to the air pipe 121, the air pipe 121 divides the exhaust gas to the purification cavity 11, the air distribution plate 122 divides the airflow into small bubbles; the driving motor 1411 drives the driving shaft 141 to rotate counterclockwise, the driving shaft 141 drives the push plate 1421 to stir the liquid to generate turbulence, prolongs the residence of the bubbles and prevents the aggregation, and guarantees that the acidic substances and the purification liquid are fully neutralized; the driving shaft 141 also drives the adapter 1423 to rotate, through the driving gear 1424, the transmission gear one 1432, and the adapter teeth 1442 of the adapter shaft 144 linkage, the adapter shaft 144 drives the filter assembly 145 to rotate clockwise, the filter screen 1454 drives the liquid to form a clockwise rotational flow, and the rotational flow and the turbulence are interwoven into cross turbulence, further breaking the bubbles and pushing fresh purification liquid to the bubble area, improving the neutralization and the absorption efficiency of the easily soluble VOCs, and solving the problem of incomplete treatment.

[0050] Advantage two, when the filter assembly 145 rotates clockwise, the filter screen 1454 is scoured by the reverse flow of the turbulence of the push plate 1421, and the small impurities are scoured off to prevent blockage; the filter screen 1454 and the turbulence are reversely acted to generate friction, the impurities are pushed into the adapter frame 1455, and the filter screen 1454 moves the impurities to the adapter frame 1455 in a circulating manner; the scraper three 14561 compensates the gap of the filter screen 1454 by the elastic member 14562, and tightly scrapes the impurities, buffers the pressure, and prevents the filter screen 1454 from being scratched; the impurities and the liquid enter the slag filter shell 1457, the shell is separated from the liquid through the small holes, the backflow of the impurities is prevented, the service life of the filter screen 1454 is prolonged, and the operation and maintenance cost is reduced.

[0051] Advantage three, the adapter 1423 of the driving shaft 141 is embedded in the adapter port 1431 of the limiting frame 143, and is stably supported to prevent deviation; the driving shaft 141 drives the driving gear 1424 to rotate, through the transmission gear one 1432 and the adapter teeth 1442 of the adapter shaft 144 linkage, the push plate 1421 and the filter assembly 145 are ensured to rotate synchronously, and the transmission jamming is reduced; when the fixed frame 142 rotates, the scraper one 1422 cleans the inner wall of the purification cavity 11, prevents the impurities from adhering to corrode and accumulating to affect the liquid circulation, and guarantees the stable operation of the equipment.

[0052] Advantage four, the small holes of the slag filter shell 1457 allow the purification liquid to backflow to the purification cavity 11, reduce the loss and the additional cost; the flow guide inclined surface 14571 guides the impurities to the lowest position, facilitates cleaning, and reduces downtime; the single driving motor 1411 drives the driving shaft 141, the push plate 1421, the filter assembly 145, and the filter screen 1454 in linkage, without multiple power sources, reduces the energy consumption and the operation complexity, and is suitable for industrial continuous production.

[0053] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent features; and these modifications or replacements 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 application.

Claims

1. An acrylic resin exhaust gas treatment filter apparatus characterized by comprising: Include: The main body (1) is internally provided with a purification cavity (11), and the circumference of the main body (1) is fixedly connected with a shunt pipe (12), and the bottom of the shunt pipe (12) is provided with a plurality of air pipes (121), and the bottom end of the air pipe (121) penetrates into the inside of the purification cavity (11); The purification cavity (11) is internally provided with a purification device (14), the purification device (14) includes a drive shaft (141) rotatably installed at the center position of the inside bottom of the purification cavity (11), the inside of the purification cavity (11) is provided with a limiting frame (143) at the top position of the drive shaft (141), the bottom center position of the limiting frame (143) is provided with a butt joint (1431), and the top end of the drive shaft (141) is fixedly connected with a butt joint (1423) rotatably connected with the inner wall of the butt joint (1431); The butt joint (1431) is rotatably connected with a butt joint shaft (144) above the butt joint (1423), the inside of the butt joint shaft (144) is provided with a drive cavity (1443) near the top position, and the outer wall of the butt joint shaft (144) is provided with a filter assembly (145) near the drive cavity (1443) position.

2. The acrylic resin exhaust gas treatment filtering apparatus according to claim 1, characterized by: The filter assembly (145) includes a fixed frame (1451) fixedly installed on the outer wall of the butt joint shaft (144), the outer wall of the fixed frame (1451) is provided with a scraper (1452) near the inner wall of the purification cavity (11), a plurality of transmission shafts (1453) are rotatably connected in the fixed frame (1451), one end of one of the transmission shafts (1453) extends into the drive cavity (1443), the surface of the transmission shaft (1453) is provided with a filter screen (1454), the outer wall of the fixed frame (1451) is provided with a butt joint frame (1455) near the top of the filter screen (1454), the inside of the butt joint frame (1455) is provided with a collection cavity (14551) near the filter screen (1454), and the inside of the collection cavity (14551) is slidably installed with a slag and water filtering shell (1457).

3. The acrylic resin exhaust gas treatment filter apparatus according to claim 2, characterized by: The top of the butt joint frame (1455) is provided with a baffle (14552), the inside of the collection cavity (14551) is fixedly connected with a fixed block (1456) near the filter screen (1454) position, the top of the fixed block (1456) is hingedly connected with a scraper (14561), the top of the fixed block (1456) is provided with an elastic element (14562) connected with the scraper (14561) at one end, the outer wall of the slag and water filtering shell (1457) is provided with a collection port (14572) near the position of the scraper (14561), and the bottom of the slag and water filtering shell (1457) is provided with a flow guide slope (14571).

4. The acrylic resin exhaust gas treatment filter apparatus according to claim 1, characterized by: The bottom center of the driving cavity (1443) is rotationally connected with a driven gear (1444), the top of the driven gear (1444) is provided with a connecting rod penetrating to the outside of the butt joint shaft (144), one end of the connecting rod is fixedly connected with a fixed rod (1446) outside the butt joint shaft (144), the both ends of the fixed rod (1446) are fixedly connected with the inner wall of the purification cavity (11), the inside of the driving cavity (1443) is rotationally connected with a transmission gear two (1445) corresponding to the position of the filtering assembly (145), and the transmission gear two (1445) is engaged with the driven gear (1444).

5. The acrylic resin exhaust gas treatment filtering apparatus according to claim 1, characterized by: The bottom of the butt joint shaft (144) is provided with a butt joint cavity (1441), the inner wall of the butt joint cavity (1441) is uniformly provided with a plurality of butt joint teeth (1442), the inside of the butt joint (1431) is rotationally connected with a transmission gear one (1432) close to the position of the butt joint teeth (1442), the transmission gear one (1432) is engaged with the butt joint teeth (1442), the top center of the butt joint (1423) is provided with a driving gear (1424) close to the position of the transmission gear one (1432), and the driving gear (1424) is engaged with the transmission gear one (1432).

6. The acrylic resin exhaust gas treatment filtering apparatus according to claim 1, characterized by: The circumferential outer wall of the driving shaft (141) is fixedly connected with a plurality of fixed frames (142), the inside of the fixed frame (142) is provided with a plurality of push plates (1421), and one side of the fixed frame (142) is provided with a scraper one (1422).

7. The acrylic resin exhaust gas treatment filtering apparatus according to claim 1, characterized by: The end of the air pipe (121) inside the purification cavity (11) is fixedly connected with a gas distribution plate (122), the top of the main body (1) is provided with an exhaust pipe (13) communicated with the purification cavity (11), the bottom of the main body (1) is provided with a driving motor (1411) corresponding to the position of the driving shaft (141), and the output end of the driving motor (1411) penetrates the main body (1) and is fixedly connected with the driving shaft (141).

Images