Waste gas treatment device for acrylic plate production

Abstract

The invention belongs to the technical field of acrylic plate production, and discloses an acrylic plate production waste gas treatment device which comprises a thermal machine body, a gas outlet cylinder is fixedly connected to the top end of the thermal machine body in a penetrating mode, and a purification part is arranged in the thermal machine body. The purification part comprises an air inlet pipeline which is fixedly connected to one end of the heat engine body in a penetrating manner; particulate matters and dust contained in waste gas are filtered through a filter screen plate, a rotating screw rod can drive two annular cylinder scraping plates to rotationally scrape the outer walls of the two ends of the filter screen plate in real time, the dust is prevented from being attached to the filter screen plate, a metal plate which repeatedly moves up and down on the outer wall of a telescopic plate can generate friction heat with the metal plate, and the dust is prevented from being adsorbed on the outer wall of the telescopic plate. Meanwhile, when the waste gas passively makes contact with the outer wall of the telescopic plate in a baffling mode, organic matter in the waste gas can be fully decomposed into carbon dioxide and water, the overall device is low in structure manufacturing cost, and meanwhile the purification effect can be guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of acrylic plate production, and in particular is a waste gas treatment device for producing acrylic plates. Background Art

[0002] Acrylic sheet, also known as specially treated organic glass, is a polymethyl methacrylate (PMMA) sheet with good transparency, chemical stability and weather resistance. Acrylic sheet has high transparency, light transmittance of more than 92%, and pure color and rich colors. At the same time, it also has excellent weather resistance and high surface hardness, as well as good processing performance. Acrylic sheet is widely used in the construction industry, such as lamps, windows, soundproof doors and windows, lighting covers, etc. In addition, it is also widely used in special appliances or crafts in various industries, such as acrylic sheet splicing mechanism, enhanced airtightness of snack kiosks, etc.

[0003] Acrylic is made by polymerizing methyl methacrylate monomers. Methyl methacrylate is a colorless, volatile liquid with moderate toxicity. It is slightly soluble in water and soluble in most organic solvents such as ethanol. Therefore, in the production process, organic waste gas with methyl methacrylate as the main component is easily generated. Once these waste gases are discharged into the natural air without being fully purified, they will more or less harm the nearby air, plants, and the health of people. At present, for some small production plants, some waste gas treatment equipment in the existing technology is too expensive, which will impose a financial burden on small factories. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a waste gas treatment device for producing acrylic plates.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an exhaust gas treatment device for producing acrylic plates, comprising a thermal body, a gas outlet is fixedly connected to the top of the thermal body, a purification part is arranged in the thermal body, the purification part comprises an air intake pipe fixedly connected to one end of the thermal body, a filter screen for filtering dust in the exhaust gas is fixedly connected to the inner wall of the end of the air intake pipe away from the thermal body, a protective cover is fixedly connected to the inner wall of the end of the thermal body close to the bottom, a rotating scraper structure is arranged in the protective cover, which is used to remove dust and debris attached to the filter screen, two telescopic plates are respectively arranged in the inner walls at both ends of the air intake pipe, and the two groups of telescopic plates are staggered with each other, and each of the telescopic plates is provided with a limiting friction structure, and each limiting friction structure can generate heat by friction with each telescopic plate through the indirect drive of the rotating scraper structure, so that the temperature of the air intake pipe and the telescopic plate rises.

[0006] Preferably, the rotating scraper structure includes a forward and reverse rotating motor, the outer wall of one end of the motor and the inner wall of one end of the protective cover are fixedly connected, a screw is fixedly connected to the rotating shaft of the motor, and the screw and the inner and outer walls of the other end of the protective cover are through-connected and rotatably connected.

[0007] Preferably, two annular scrapers are fixedly connected to the rod body on one side of the screw, and one end of the two annular scrapers are respectively fitted and rotatably connected to the outer walls of the two ends of the filter screen, the rod body of the screw and the filter screen are rotatably connected, and a dust collecting box is tightly clamped on the side wall of the bottom end of the air intake pipe.

[0008] Preferably, each of the limiting friction structures includes a U-shaped bracket fixedly connected to the inner wall of the air intake pipe, the U-shaped bracket and the side plate at one end of the telescopic plate are rotatably connected, a T-shaped slider is hinged on the side plate at the other end of the telescopic plate, and two locking balls are fixedly connected to the outer wall of one end of the T-shaped slider.

[0009] Preferably, a support plate is provided on the side of the T-shaped slider, and a T-shaped groove that can be slidably engaged with the T-shaped slider is provided on the outer wall of one end of the support plate, and two ball grooves are also provided on the inner wall of one end of the T-shaped groove, and the inner walls of the two ball grooves can be intermittently and tightly engaged with the two engaging balls.

[0010] Preferably, a sleeve is fixedly connected to the side wall of the support plate, and the inner wall of the sleeve is threadedly connected to the screw rod, so that the sleeve can be driven to rotate inwards but not outwards by the rotation of the screw rod.

[0011] Preferably, a rubber ring plate is fixedly connected to the rod body of the screw rod, and a metal plate is intermittently slidably connected to one side plate of the rubber ring plate. Two ear plates are fixedly connected to the outer wall of one end of the metal plate, and an elastic telescopic part is fixedly connected to the outer wall of the bottom end of the ear plate below, and the bottom end of the elastic telescopic part is fixedly connected to the inner wall of the bottom end of the air intake pipe.

[0012] Preferably, a guide rod is slidably connected through the two ear plates, the bottom end of the guide rod is fixedly connected to the bottom inner wall of the air intake pipe, the outer wall of the other end of the metal plate and the outer wall of one end of the telescopic plate can be intermittently fitted and slidably connected, and the telescopic plate is also made of metal material.

[0013] Preferably, a synchronous belt is fixedly connected to the rod body of the screw rod, a rotating rod is fixedly connected through the upper side wall of the synchronous belt, and the rod body at one end of the rotating rod is movably sleeved with the inner wall of the other end of the thermal body near the top.

[0014] Preferably, three purification mesh plates are fixedly connected to the rod body of the rotating rod in a surrounding manner, and the inner cavities of the three purification mesh plates are used to place granular catalysts.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention filters the particles and dust contained in the exhaust gas through the filter screen plate. The motor drives the screw to rotate. The rotating screw drives the two annular scrapers to rotate and scrape the outer walls of the two ends of the filter screen plate in real time to prevent the dust from adhering to the filter screen plate and affecting the subsequent long-term filtering effect of the filter screen plate. The filter screen plate faces one end of the inner wall of the air intake pipe. When the surface is cleaned, the cleaned dust and debris will directly fall into the dust collection box for unified collection.

[0017] The present invention moves the sleeve to contact the rubber ring plate, and when the sleeve is fitted and connected with the rubber ring plate, the telescopic plate also contacts the metal plate at the same time. The telescopic plate with an increased inclination angle can produce a baffle effect on the incoming exhaust gas, so that it repeatedly contacts the heat-absorbing telescopic plate. At the same time, when the screw rotates, it also drives the rubber ring plate to rotate in situ. The rotating rubber ring plate repeatedly contacts and presses the metal plate, so that it passes through two ear plates and moves horizontally on the guide rod, and then repeatedly squeezes the elastic telescopic member, and then resets through the elastic drive of the elastic telescopic member, so that the metal plate that is passively repeatedly moving up and down on the outer wall of the telescopic plate can generate friction and heat with it, so that the ambient temperature in the air intake pipe is further increased. At the same time, when the exhaust gas is passively contacted with the outer wall of the telescopic plate in a baffled manner, the organic matter in the exhaust gas can be fully decomposed into carbon dioxide and water.

[0018] The present invention also drives the synchronous belt to rotate through the rotation of the screw, and the rotating synchronous belt drives the rotating rod and multiple purification mesh plates on the outer wall of the rotating rod. The rotating purification mesh plates can purify the rising exhaust gas through the catalyst placed in the inner cavity, and can convert harmful nitrogen oxides, hydrocarbons and carbon monoxide into harmless nitrogen, carbon dioxide and water vapor, so that the exhaust gas can be harmlessly discharged through the exhaust pipe. The overall device structure has a low cost and can ensure the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of the purifier and air intake duct of the present invention;

[0021] Figure 3 It is a schematic diagram of the partial cross-section structure of the purification unit of the present invention;

[0022] Figure 4For the present invention Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0023] Figure 5 It is a schematic diagram of the local structure of the purification unit of the present invention;

[0024] Figure 6 It is a schematic diagram of the partial cross-sectional structure of the purification unit of the present invention;

[0025] Figure 7 For the present invention Figure 6 A schematic diagram of the partially enlarged structure at B in the middle;

[0026] Figure 8 For the present invention Figure 2 Schematic diagram of the partial enlarged structure at point C in the middle.

[0027] In the figure:

[0028] 1. Thermal body; 11. Punching bag;

[0029] 2. Purification unit; 21. Air inlet duct; 22. Filter screen; 23. Protective cover; 24. Motor; 25. Screw; 26. Annular scraper; 27. Ash collecting box; 28. Telescopic plate; 29. ​​U-shaped bracket; 230. T-shaped slider; 231. Cardan; 232. Support plate; 233. T-shaped slide groove; 234. Ball groove; 235. Sleeve; 236. Rubber ring plate; 237. Metal plate; 238. Ear plate; 239. Elastic telescopic part; 240. Guide rod; 241. Synchronous belt; 242. Rotating rod; 243. Purification screen. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figures 1 to 8As shown, the present invention provides an exhaust gas treatment device for producing acrylic plates, comprising a thermal body 1, a gas outlet 11 is fixedly connected to the top of the thermal body 1, a purification part 2 is arranged in the thermal body 1, and the purification part 2 comprises an air intake pipe 21 which is fixedly connected to one end of the thermal body 1, a filter screen plate 22 for filtering dust in the exhaust gas is fixedly connected to the inner wall of the end of the air intake pipe 21 away from the thermal body 1, a protective cover 23 is fixedly connected to the inner wall of the end of the thermal body 1 close to the bottom, a rotating scraper structure is arranged in the protective cover 23, and is used to remove dust and debris attached to the filter screen plate 22, two telescopic plates 28 are respectively arranged in the inner walls of both ends of the air intake pipe 21, and the two groups of telescopic plates 28 are staggered with each other, and each telescopic plate 28 is provided with a limiting friction structure, and each limiting friction structure can generate heat by friction with each telescopic plate 28 through the indirect drive of the rotating scraper structure, so that the temperature of the air intake pipe 21 and the telescopic plate 28 rises.

[0032] The above scheme is adopted: first, the exhaust gas will pass through the filter screen 22 installed on the air intake pipe 21, and the particles and dust contained in the exhaust gas will be filtered through the filter screen 22. At the same time, the motor 24 in the rotating scraper structure is started to drive the screw 25 to rotate. The rotating screw 25 will drive the two annular scrapers 26 to rotate and scrape the outer walls of the two ends of the filter screen 22 in real time to prevent dust from adhering to the filter screen 22. When the screw 25 rotates, it will also drive multiple sleeves 235 in the limit friction structure at the same time. When the exhaust gas is introduced into the exhaust gas chamber, the exhaust gas can be decomposed into carbon dioxide and water by moving the exhaust gas inwardly and outwardly without rotating on the screw 25, so that the exhaust gas can be driven to move in a limited and guided translational manner in the T-shaped slide groove 233, and then the passive translation process of the T-shaped slide groove 230 can drive the hinged telescopic plate 28 to tilt and extend the plate body. The telescopic plate 28 with an increased inclination angle can produce a baffle effect on the incoming exhaust gas, so that it repeatedly contacts the heat-absorbing telescopic plate 28, and when the exhaust gas passively contacts the outer wall of the telescopic plate 28 in a baffled manner, the organic matter in the exhaust gas can be fully decomposed into carbon dioxide and water.

[0033] The rotating scraper structure includes a forward and reverse rotating motor 24, the outer wall of one end of the motor 24 is fixedly connected to the inner wall of one end of the protective cover 23, a screw 25 is fixedly connected to the rotating shaft of the motor 24, the screw 25 and the inner and outer walls of the other end of the protective cover 23 are through-connected and rotatably connected, two annular scrapers 26 are fixedly connected to the rod body on one side of the screw 25, one end of the two annular scrapers 26 are respectively fitted and rotatably connected to the outer walls of the two ends of the filter screen plate 22, the rod body of the screw 25 and the filter screen plate 22 are through-connected and rotatably connected, and a dust collecting box 27 is tightly clamped on the bottom end side wall of the air intake duct 21.

[0034] The above scheme is adopted: the motor 24 in the protective cover 23 is started to drive the screw 25 to rotate. The rotating screw 25 will drive the two annular scrapers 26 to rotate and scrape the outer walls of the two ends of the filter screen plate 22 in real time to prevent dust from adhering to the filter screen plate 22 and affecting the subsequent long-term filtering effect of the filter screen plate 22. The filter screen plate 22 faces one end of the inner wall of the air intake duct 21. When the surface is cleaned, the cleaned dust and debris will fall directly into the dust collection box 27 for unified collection.

[0035] Each limiting friction structure includes a U-shaped bracket 29 fixedly connected to the inner wall of the air intake pipe 21, the U-shaped bracket 29 and the side plate of one end of the telescopic plate 28 are connected in a through rotation, and a T-shaped slider 230 is hinged on the side plate of the other end of the telescopic plate 28, and two locking balls 231 are fixedly connected to the outer wall of one end of the T-shaped slider 230, and a support plate 232 is provided on the side of the T-shaped slider 230, and a T-shaped groove 233 that can be slidably engaged with the T-shaped slider 230 is provided on the outer wall of one end of the support plate 232, and two ball grooves 234 are also provided on the inner wall of one end of the T-shaped groove 233, and the inner walls of the two ball grooves 234 can be intermittently and tightly engaged with the two locking balls 231, and a sleeve 235 is fixedly connected to the side wall of the support plate 232, and the inner wall of the sleeve 235 is threadedly connected to the screw 25, and the rotation of the screw 25 can drive the sleeve 235 to rotate inward but not outward.

[0036] By adopting the above scheme, when the screw 25 rotates, it will also drive multiple sleeves 235 to move on the screw 25 while rotating inwardly and not outwardly. Therefore, the support plate 232 installed on the outer wall of the sleeve 235 for synchronous following translation can drive the T-shaped slider 230 to slide in a limited and guided translation in the T-shaped slide groove 233 until the locking ball 231 is locked into the corresponding ball groove 234, thereby producing a limiting effect on the T-shaped slider 230, and then the passive translation process of the T-shaped slider 230 can drive the hinged telescopic plate 28 to tilt and the plate body to extend.

[0037] A rubber ring plate 236 is also fixedly connected to the rod body of the screw rod 25, and a metal plate 237 can be intermittently fitted and slidably connected on one side plate of the rubber ring plate 236. Two ear plates 238 are fixedly connected to the outer wall of one end of the metal plate 237, and an elastic telescopic member 239 is fixedly connected to the outer wall of the bottom end of the lower ear plate 238, and the bottom end of the elastic telescopic member 239 is fixedly connected to the bottom inner wall of the air intake pipe 21. A guide rod 240 is jointly connected and slidably penetrated between the two ear plates 238, and the bottom end of the guide rod 240 is fixedly connected to the bottom inner wall of the air intake pipe 21. The outer wall of the other end of the metal plate 237 and the outer wall of one end of the telescopic plate 28 can be intermittently fitted and slidably connected, and the telescopic plate 28 is also made of metal.

[0038] The above scheme is adopted: when the sleeve 235 moves to contact the rubber ring plate 236 and is fitted and connected therewith, the telescopic plate 28 is also fitted and contacted with the metal plate 237 at the same time. The telescopic plate 28 with an increased inclination angle can produce a baffle effect on the incoming exhaust gas, so that it repeatedly contacts the telescopic plate 28 that absorbs heat. At the same time, when the screw 25 rotates, it also drives the rubber ring plate 236 to rotate in situ. The rotating rubber ring plate 236 will repeatedly contact and press the metal plate 237, so that it passes through the two ear plates 238 and moves horizontally on the guide rod 240, and then repeatedly squeezes the elastic telescopic member 239, and then resets through the elastic drive of the elastic telescopic member 239, so that the metal plate 237 that is passively repeatedly moved up and down on the outer wall of the telescopic plate 28 can generate friction heat with it, so that the ambient temperature in the intake pipe 21 is further increased, and at the same time, when the exhaust gas is passively contacted with the outer wall of the telescopic plate 28 in a baffled manner, the organic matter in the exhaust gas can be fully decomposed into carbon dioxide and water.

[0039] A synchronous belt 241 is fixedly connected to the rod body of the screw rod 25, and a rotating rod 242 is fixedly connected through the upper side wall of the synchronous belt 241. One end of the rotating rod 242 is movably connected to the inner wall of the other end of the thermal engine body 1 near the top. Three purification mesh plates 243 are fixedly connected to the rod body of the rotating rod 242 in a surrounding manner. The inner cavities of the three purification mesh plates 243 are used to place granular catalysts.

[0040] The above scheme is adopted: the rotation of the screw 25 will also drive the synchronous belt 241 to rotate at the same time, and the rotating synchronous belt 241 will drive the rotating rod 242 and the multiple purification mesh plates 243 on the outer wall of the rotating rod 242, and then the rotating purification mesh plates 243 can purify the rising exhaust gas through the catalyst placed in the inner cavity, and can convert harmful nitrogen oxides, hydrocarbons and carbon monoxide into harmless nitrogen, carbon dioxide and water vapor, so that the exhaust gas can be harmlessly discharged through the exhaust pipe 11. The overall device structure has a low cost and can ensure the purification effect.

[0041] The working principle and use process of the present invention are as follows: after starting the thermal engine 1 to fill its interior with heat, the exhaust gas is introduced through the air intake pipe 21. First, the exhaust gas will pass through the filter screen 22 installed on the air intake pipe 21, and the particles and dust contained in the exhaust gas will be filtered through the filter screen 22. At the same time, the motor 24 in the protective cover 23 is started to drive the screw 25 to rotate. The rotating screw 25 will drive the two annular scrapers 26 to rotate and scrape the outer walls of the two ends of the filter screen 22 in real time to prevent dust from adhering to the filter screen 22 and affecting the subsequent long-term use of the filter screen 22. The filter screen plate 22 faces one end of the inner wall of the air intake duct 21. When the surface is cleaned, the cleaned dust and debris will directly fall into the dust collecting box 27 for unified collection. The filtered exhaust gas will naturally enter the air intake duct 21 and come into contact with the high temperature in the air intake duct 21. When the screw 25 rotates, it will also drive multiple sleeves 235 to move on the screw 25 while rotating inside and outside. Therefore, the support plate 232 installed on the outer wall of the sleeve 235 for synchronous following translation can drive the T-shaped slider 230 to slide in the T-shaped slide groove 233 in a limited and guided translation manner. Until the ball 231 is engaged with the corresponding ball groove 234, a limiting effect is generated on the T-shaped slider 230, and then the passive translation process of the T-shaped slider 230 can drive the hinged telescopic plate 28 to tilt and extend the plate body. When the sleeve 235 moves to contact the rubber ring plate 236 and is fitted and connected thereto, the telescopic plate 28 also fits and contacts the metal plate 237 at the same time. The telescopic plate 28 with an increased inclination angle can generate a baffle effect on the incoming exhaust gas, so that it repeatedly contacts the telescopic plate 28 that absorbs heat. At the same time, when the screw 25 rotates, it also drives the rubber ring plate 236 to rotate in situ. The rotating rubber ring plate 236 will repeatedly contact and press the metal plate 237, causing it to move horizontally on the guide rod 240 through the two ear plates 238, and then repeatedly squeeze the elastic telescopic member 239, and then reset through the elastic drive of the elastic telescopic member 239, so that the metal plate 237 that is passively moving up and down repeatedly on the outer wall of the telescopic plate 28 can generate friction and heat with it, so that the ambient temperature in the intake pipe 21 is further increased, and at the same time, when the exhaust gas is passively contacted with the outer wall of the telescopic plate 28 in a baffled manner, the organic matter in the exhaust gas can be fully decomposed into carbon dioxide and water;

[0042] Finally, the exhaust gas will naturally enter the thermal engine body 1, and then gradually rise to the top of the thermal engine body 1. At this time, the rotation of the screw 25 will also drive the synchronous belt 241 to rotate, and the rotating synchronous belt 241 will drive the rotating rod 242 and the multiple purification mesh plates 243 on the outer wall of the rotating rod 242. Then, the rotating purification mesh plates 243 can purify the rising exhaust gas through the catalyst placed in the inner cavity, and can convert harmful nitrogen oxides, hydrocarbons and carbon monoxide into harmless nitrogen, carbon dioxide and water vapor, so that the exhaust gas can be harmlessly discharged through the exhaust pipe 11. The overall device structure has a low cost and can ensure the purification effect.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste gas treatment device for producing acrylic plates, comprising a thermal engine (1), characterized in that: An exhaust pipe (11) is fixedly connected to the top of the thermal engine (1), a purification unit (2) is provided inside the thermal engine (1), the purification unit (2) includes an air intake pipe (21) fixedly connected to one end of the thermal engine (1), a filter screen (22) for filtering dust in the exhaust gas is fixedly connected to the inner wall of the end of the air intake pipe (21) away from the thermal engine (1), a protective cover (23) is fixedly connected to the inner wall of the end of the thermal engine (1) close to the bottom, and the protective cover (23) is fixedly connected to the inner wall of the end of the thermal engine (1). A rotating scraper structure is provided inside the filter to remove dust and debris attached to the filter screen plate (22). Two telescopic plates (28) are provided in the inner walls at both ends of the air intake duct (21), and the two groups of telescopic plates (28) are interlaced with each other. Each telescopic plate (28) is provided with a limiting friction structure. Through the indirect drive of the rotating scraper structure, each limiting friction structure can generate heat by friction with each telescopic plate (28), thereby increasing the temperature of the air intake duct (21) and the telescopic plate (28).

2. The waste gas treatment device for producing acrylic plates according to claim 1, characterized in that: The rotary scraper structure comprises a forward and reverse rotating motor (24), the outer wall of one end of the motor (24) and the inner wall of one end of the protective cover (23) are fixedly connected, a screw rod (25) is fixedly connected to the rotating shaft of the motor (24), and the screw rod (25) and the inner and outer walls of the other end of the protective cover (23) are connected in a through-rotating manner.

3. The waste gas treatment device for producing acrylic plates according to claim 2, characterized in that: Two annular scrapers (26) are fixedly connected to a rod body on one side of the screw rod (25), and one end of the two annular scrapers (26) are respectively connected to the outer walls of the two ends of the filter screen plate (22) for fitting and rotation. The rod body of the screw rod (25) and the filter screen plate (22) are connected for penetration and rotation, and a dust collecting box (27) is tightly connected to the side wall of the bottom end of the air intake pipe (21).

4. The waste gas treatment device for producing acrylic plates according to claim 3, characterized in that: Each of the position-limiting friction structures comprises a U-shaped bracket (29) fixedly connected to the inner wall of the air intake pipe (21); the U-shaped bracket (29) is rotatably connected to a side plate at one end of the telescopic plate (28); a T-shaped slider (230) is hingedly connected to the side plate at the other end of the telescopic plate (28); and two locking balls (231) are fixedly connected to the outer wall at one end of the T-shaped slider (230).

5. The waste gas treatment device for producing acrylic plates according to claim 4, characterized in that: A support plate (232) is provided on the side of the T-shaped slider (230), and a T-shaped slide groove (233) capable of slidingly engaging with the T-shaped slider (230) is provided on the outer wall of one end of the support plate (232), and two ball grooves (234) are also provided on the inner wall of one end of the T-shaped slide groove (233), and the inner walls of the two ball grooves (234) can be intermittently and tightly engaged with the two locking balls (231).

6. The waste gas treatment device for producing acrylic plates according to claim 5, characterized in that: A sleeve (235) is fixedly connected to the side wall of the support plate (232), and the inner wall of the sleeve (235) is threadedly connected to the screw rod (25). The rotation of the screw rod (25) can drive the sleeve (235) to rotate inwardly but not outwardly.

7. The waste gas treatment device for producing acrylic plates according to claim 6, characterized in that: The rod body of the screw rod (25) is also fixedly connected to a rubber ring plate (236), and a metal plate (237) is intermittently fitted and slidably connected to one side plate of the rubber ring plate (236). Two ear plates (238) are fixedly connected to the outer wall of one end of the metal plate (237), and an elastic telescopic member (239) is fixedly connected to the outer wall of the bottom end of the ear plate (238) below, and the bottom end of the elastic telescopic member (239) is fixedly connected to the inner wall of the bottom end of the air intake pipe (21).

8. The waste gas treatment device for producing acrylic plates according to claim 7, characterized in that: A guide rod (240) is slidably connected between the two ear plates (238), the bottom end of the guide rod (240) is fixedly connected to the inner wall of the bottom end of the air intake pipe (21), the outer wall of the other end of the metal plate (237) and the outer wall of one end of the telescopic plate (28) can be intermittently fitted and slidably connected, and the telescopic plate (28) is also made of metal material.

9. The waste gas treatment device for producing acrylic plates according to claim 8, characterized in that: The rod body of the screw rod (25) is specifically fixedly connected to a synchronous belt (241), and a rotating rod (242) is fixedly connected to the upper side wall of the synchronous belt (241), and one end of the rotating rod (242) is movably sleeved with the inner wall of the other end of the thermal engine body (1) near the top.

10. The waste gas treatment device for producing acrylic plates according to claim 9, characterized in that: Three purification mesh plates (243) are fixedly connected to the rod body of the rotating rod (242) in a surrounding manner, and the inner cavities of the three purification mesh plates (243) are used to place granular catalysts.

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