Gas purification device for fine chemical engineering

Abstract

The invention relates to the technical field of air purification, in particular to a gas purification device for fine chemical engineering. The gas purification device for fine chemical engineering comprises a purification assembly, a supporting assembly, an adsorption assembly, an internal cleaning assembly and an external scraper assembly, the adsorption assembly comprises a protection part, an outer adsorption part and an inner adsorption part, and the internal cleaning assembly comprises two rope parts and a cleaning part. The purification assembly can make waste gas react with purification liquid more thoroughly, the reaction rate of the waste gas and the purification liquid is increased, the supporting assembly is used for supporting the adsorption assembly, an inner adsorption part of the adsorption assembly is used for filtering dust and impurities in the purified waste gas, and an outer adsorption part can filter the purified waste gas again; the cleaning piece of the internal cleaning assembly can clean the internal adsorption piece, the rope piece can drive the cleaning piece to clean the interior of the internal adsorption piece, the external scraper assembly can scrape dust and impurities on the outer surface of the internal adsorption piece, the filter screen is prevented from being blocked, the service life of the purification device is prolonged, and the frequency of replacement and maintenance is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of air purification, and in particular to a gas purification device for fine chemical industry. Background Art

[0002] Fine chemical gas purification equipment is a device specially used to treat the gas generated in the fine chemical production process to remove impurities and harmful substances so that the gas can reach specific quality standards or meet the requirements of subsequent production processes. The gas purification device uses the adsorption effect of the adsorbent to adsorb harmful substances in the gas on its surface, thereby achieving the purpose of purifying the gas. At present, the inner and outer surfaces of the adsorbent are prone to clogging, and the clogged equipment needs to be replaced or cleaned. At the same time, the reaction speed between the gas and the reaction liquid is slow, which is not conducive to the rapid purification of the gas. Summary of the invention

[0003] Based on this, it is necessary to provide a gas purification device for fine chemical industry to solve at least one of the above technical problems.

[0004] A gas purification device for fine chemical industry comprises a purification component, a support component, an adsorption component, an internal cleaning component and an external scraper component. The purification component and the support component are both placed on the ground, and the support component is located on one side of the purification component. The adsorption component is clamped and installed on the top of the support component. The internal cleaning component and the external scraper component are both installed inside the adsorption component, and the internal cleaning component is located below the external scraper component. The adsorption component comprises a protective part, an external adsorption component and an internal adsorption component. The protective part is clamped and installed on the top of the support component, the external adsorption component is installed inside the protective part, the internal adsorption component is slidably clamped on the inner side wall of the external adsorption component, the internal cleaning component is located between the external adsorption component and the internal adsorption component, and the internal cleaning component is located below the internal adsorption component. The internal cleaning component comprises two rope components and a cleaning component. The upper ends of the two rope components are connected to the top of the internal adsorption component, and the two rope components are respectively located on both sides of the internal adsorption component, and the bottom of the cleaning component is fixedly connected to the lower end of the rope component.

[0005] The purification component can make the exhaust gas react with the purification liquid more thoroughly, and accelerate the reaction rate of the exhaust gas and the purification liquid. The supporting component is used to support the adsorption component. The inner adsorption component of the adsorption component is used to filter the dust and impurities in the purified exhaust gas. The outer adsorption component can filter the purified exhaust gas again. The cleaning component of the internal cleaning component can clean the inner adsorption component to prevent the filter from being blocked, thereby extending the service life of the purification device and reducing the number of replacement and maintenance. The rope component can drive the cleaning component to clean the inside of the inner adsorption component. The external scraper component can scrape off the dust and impurities on the outer surface of the inner adsorption component to prevent the filter from being blocked, thereby extending the service life of the purification device and reducing the number of replacement and maintenance.

[0006] In one embodiment, the purification component includes a purification component, an air inlet pipe and an air outlet pipe. The purification component is placed on the ground. One end of the air inlet pipe is connected to the exhaust gas source, and the middle part of the air inlet pipe is passed through one side wall of the purification component. One end of the air outlet pipe is passed through the middle part of the protective component, and the middle part of the air outlet pipe is passed through the other side wall of the purification component.

[0007] In one embodiment, the purification component includes a purification protection shell, a dosing tube and a partition plate. The purification protection shell is placed on the ground, the upper end of the dosing tube is fixedly inserted on the top of the purification protection shell, the partition plate is installed inside the purification protection shell, and a purification chamber is formed between the partition plate and the bottom of the purification protection shell. The purification chamber contains purification liquid, the other end of the air inlet pipe is passed through the upper and lower side walls of the partition plate, the bottom of the dosing tube is passed through the upper and lower side walls of the partition plate, and the other end of the air outlet pipe is passed through the upper and lower side walls of the partition plate. A switch is installed on the top of the dosing tube. When the switch is turned on, feeding can be carried out, and when it is closed, exhaust gas can be prevented from flowing out of the dosing tube.

[0008] In one embodiment, a stirring member is rotatably mounted at the bottom of the purification chamber, and the stirring member is located directly below the other end of the air inlet pipe. The stirring member includes a rotating rod, a rotating fan and two stirring fans. The stirring member is rotatably mounted at the bottom of the rotating rod, and the rotating fan is fixedly installed on the top of the rotating rod. The rotating fan is located directly below the other end of the air inlet pipe, and the two stirring fans are fixedly installed in the middle of the rotating rod.

[0009] In one embodiment, the support assembly includes a support frame and a fixing ring, the support frame is placed on the ground, and the fixing ring is installed on the top side wall of the support frame.

[0010] In one embodiment, the protective member includes an adsorption protective shell, an upper cover, an exhaust pipe and a chip removal pipe, the side wall of the adsorption protective shell is clamped in the fixing ring, the upper cover is arranged on the top of the adsorption protective shell, the exhaust pipe is passed through the bottom of the side wall of the adsorption protective shell, and the chip removal pipe is passed through the bottom of the adsorption protective shell. An on-off switch is installed on the side wall of the chip removal pipe, and the dust and impurities stored in the chip removal pipe can be discharged by turning on the on-off switch.

[0011] In one embodiment, the external adsorption component includes a fixed ring and an external adsorption filter screen. The fixed ring is fixedly connected to the middle part of the inner wall of the adsorption protective shell. The middle part of the external adsorption filter screen is clamped in the fixed ring. The inner wall of the external adsorption filter screen is provided with two sliding grooves. The top of the chip removal pipe is inserted into the bottom of the external adsorption filter screen. The bottom of the external adsorption filter screen is funnel-shaped.

[0012] In one embodiment, the internal adsorption component includes two sliding rods, an internal adsorption filter, a magnetic upper cover, a magnetic ring and two hinged lower covers, one end of the two sliding rods is slidably clamped in two sliding grooves, the side wall of the internal adsorption filter is fixedly connected to the other end of the two sliding rods, the magnetic upper cover is installed on the top of the internal adsorption filter, one end of the air outlet pipe is successively penetrated through the purification protective shell, the external adsorption filter, the magnetic ring and the magnetic upper cover, the magnetic upper cover is slidably sleeved on one end of the air outlet pipe, the magnetic ring is fixedly sleeved on one end of the air outlet pipe, and the magnetic ring abuts against the top of the magnetic upper cover, and the two hinged lower covers are installed on the bottom of the internal adsorption filter, and the magnetism of the magnetic upper cover and the magnetic ring are opposite.

[0013] In one embodiment, each rope member includes two roller members and a rope, the middle parts of the two roller members are both inserted into the outer adsorption filter screen, and the upper ends of the two roller members are both fixedly connected to the top of the adsorption protective shell, one end of the rope is slidably inserted into the magnetic ring, and one end of the rope is fixedly connected to the magnet cover, the middle part of the rope is wound around the two roller members, the rope includes a rope segment and a receiving column segment, the upper end of the rope segment is slidably inserted into the magnetic ring, and the upper end of the rope segment is fixedly connected to the magnet cover, one end of the receiving column segment is fixedly connected to the lower end of the rope segment, the cleaning member includes four L-shaped fixed columns, an upper clamping ring, a fixed rod, a lower clamping ring, a rotating fan, a sliding column and a cylindrical brush, the upper ends of the four fixed columns are fixedly connected to the bottom side wall of one end of the air outlet pipe, the side wall of the upper clamping ring is fixedly connected to the lower ends of the four fixed columns, The top of the fixed rod is fixedly inserted into the middle of the upper clamping ring, and the fixed rod is located directly below the air outlet pipe. The lower clamping ring is fixedly sleeved on the upper end of the fixed rod, and the upper clamping ring is located above the lower clamping ring. The rotating fan is slidably sleeved on the upper end of the fixed rod, and the rotating fan is located between the upper clamping ring and the lower clamping ring. The bottom of the rotating fan is provided with a stop groove. The sliding column is slidably sleeved on the lower end of the fixed rod. The cylindrical brush is fixedly sleeved in the middle of the sliding column. The top of the sliding column is provided with a through groove, and the radius of the through groove is greater than the radius of the lower clamping ring. The radius of the stop groove is greater than the radius of the sliding column. The lower end of the sliding column is equipped with a connecting ring, and the lower end of the sliding column is rotatably clamped on the top of the connecting ring. The other ends of the two receiving column sections are fixedly connected to the connecting ring. The bottom of the fixed rod is equipped with a bottom plate, and the top of the cylindrical brush is equipped with a wind bearing plate, which is fixedly sleeved on the upper end of the sliding column. The fixed column can prevent the fixed rod from shaking, and the fixed column can also prevent the internal adsorption filter from falling out. The diameter of the air outlet pipe can be replaced so that the gas blown out of the air outlet pipe can drive the rotating fan to rotate, and the rotation of the rotating fan can drive the cylindrical brush to rotate.

[0014] In one embodiment, the external scraper assembly includes two upper arc scrapers, a lower annular scraper and two connecting columns, the two upper arc scrapers are both sleeved and abutted against the middle part of the inner adsorption filter screen, the lower annular scraper is sleeved and abutted against the bottom of the inner adsorption filter screen, the tops of the two connecting columns are respectively fixedly connected to the bottoms of the two upper arc scrapers, and the bottoms of the two connecting columns are fixedly connected to the tops of the lower annular scrapers, two support rods are installed on the top of each upper arc scraper, the middle parts of the two support rods are penetrated through the external adsorption filter screen, and the tops of the two support rods are fixedly connected to the top of the adsorption protective shell, the weight of the internal adsorption part is less than the weight of the cleaning part, a card slot is provided on the side wall of the through groove, the card slot is connected to the through groove, and the card slot runs through the top surface of the sliding column, the side wall of the abutting groove is installed with a card column, a gap groove is formed between the two upper arc scrapers, and the two sliding rods are located directly above the gap groove.

[0015] The present invention sets a rotating fan. When the exhaust gas source enters the purification liquid through the intake pipe, the purification liquid can process the exhaust gas. The exhaust gas is processed in the purification liquid and rushes out from the other end of the intake pipe. The rotating fan is located below the intake pipe. The exhaust gas will blow the rotating fan to rotate. The rotating rod rotates with the rotating fan. The rotating fan and two stirring fans rotate with the rotating rod, so that the two stirring fans can stir the purification liquid, so that the exhaust gas can react with the purification liquid more thoroughly, thereby accelerating the reaction rate of the exhaust gas and the purification liquid.

[0016] By setting an internal adsorption filter, after long-term use, the internal adsorption filter absorbs dust and impurities in the exhaust gas, the weight of the internal adsorption filter increases, the magnetic upper cover is separated from the attraction of the magnetic ring, the internal adsorption filter moves downward, the two sliding rods follow the internal adsorption filter to move downward, the magnetic upper cover moves downward, the end of the rope segment connected to the magnetic upper cover is pulled downward, the other end of the rope segment moves upward, the supporting column segment and the connecting ring follow the rope segment to move upward, the supporting column segment will not tilt when the supporting column segment follows the movement of the rope segment, the supporting column segment moves upward to lift the sliding column to move upward, the sliding column moves upward so that the wind-bearing plate and the cylindrical brush can lift the two hinged lower covers, the two hinged lower covers are flipped upward and opened, and the cylindrical brush enters the interior of the internal adsorption filter to clean the interior of the internal adsorption filter to prevent the inner wall of the internal adsorption filter from being blocked and unable to continue to filter the exhaust gas.

[0017] By setting a cylindrical brush, the cylindrical brush enters the interior of the inner adsorption filter and continues to move upward. The top of the sliding column will be inserted into the stop groove at the bottom of the rotating fan, so that the rotating fan moves upward with the sliding column. The sliding column will not be stuck by the lower clamping ring. After the sliding column lifts the rotating fan, the lower clamping ring enters the through groove. The sliding column lifts the rotating fan and gradually approaches the bottom of one end of the outlet pipe. Under the exhaust gas rushing out of the outlet pipe and the shaking caused by the sliding column, the clamping column of the rotating fan will be stuck in the clamping groove. The sliding column will go deeper into the stop groove, so that the rotating fan can drive the sliding column to rotate, and then the cylindrical brush can more thoroughly clean the interior of the inner adsorption filter to prevent the inner wall of the inner adsorption filter from being blocked and unable to continue to filter the exhaust gas. After the cylindrical brush enters the inner adsorption filter, the two hinged lower covers will flip down, return to their original state, and close the bottom of the inner adsorption filter.

[0018] By arranging an upper arc scraper and a lower annular scraper, the dust and impurities in the exhaust gas are adsorbed by the inner adsorption filter. The weight of the inner adsorption filter increases, and the upper cover of the magnet is separated from the attraction of the magnetic ring. When the inner adsorption filter moves downward, the upper arc scraper is used to clean and scrape the upper end of the outer surface side wall of the inner adsorption filter, and the lower annular scraper is used to clean and scrape the lower end of the outer surface side wall of the inner adsorption filter, to prevent the inner wall of the inner adsorption filter from being blocked and unable to continue to filter the exhaust gas. At the same time, the service life of the purification device is extended and the number of replacement and maintenance times is reduced.

[0019] After the dust and impurities adsorbed on the inner and outer surfaces of the inner adsorption filter are cleaned through the two hinged lower covers, the weight of the inner adsorption filter decreases, the columnar brush is attached with dust and impurities, the weight of the columnar brush increases, and the columnar brush moves downward. When moving downward, the columnar brush will push the two hinged lower covers to flip downward. After the two hinged lower covers are opened, they will abut against the side walls of the columnar brush under the action of the restoring force to scrape off the dust and impurities attached to the columnar brush, so that the dust and impurities fall off and fall on the outer adsorption filter. The bottom of the attached filter and the bottom of the external adsorption filter are funnel-shaped, so that dust and impurities fall into the chip discharge pipe under the shaking of the protective part and the funnel-shaped bottom of the external adsorption filter. At the same time, when the cylindrical brush moves downward, the exhaust gas will also blow the cylindrical brush, so that the dust and impurities of the cylindrical brush fall into the chip discharge pipe, preventing the dust and impurities dropped by the cylindrical brush from clogging the external adsorption filter and making it unable to continue to filter the exhaust gas. At the same time, the service life of the purification device is extended and the number of replacement and maintenance is reduced.

[0020] By setting the magnetic ring and the magnetic cover, after the dust and impurities adsorbed on the inner and outer surfaces of the inner adsorption filter are cleaned, the weight of the inner adsorption filter decreases, the cylindrical brush is attached with dust and impurities, the weight of the cylindrical brush increases, the cylindrical brush moves downward, and the inner adsorption filter moves upward. Finally, the magnetic cover is re-adhesive to the magnetic ring, the rotating fan is disengaged from the sliding column, and abuts against the lower clamping ring. The upper clamping ring prevents the rotating fan from escaping, and the bottom plate prevents the sliding column from detaching from the fixed rod. This is repeated to prevent the filter from being blocked and unable to continue filtering the exhaust gas. At the same time, the service life of the purification device is extended and the number of replacement and maintenance times is reduced.

[0021] The present invention has a simple structure and can make the exhaust gas react more thoroughly with the purification liquid, accelerate the reaction rate of the exhaust gas and the purification liquid, and at the same time, by providing a brush, it can prevent the filter from being blocked and unable to continue filtering the exhaust gas, thereby extending the service life of the purification device and reducing the number of replacement and maintenance times. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of an overall embodiment.

[0023] Figure 2 It is a plan view of a purification component after removing part of the adsorption protection shell according to an embodiment.

[0024] Figure 3 It is a three-dimensional schematic diagram of an adsorption component according to an embodiment.

[0025] Figure 4 A cross-sectional view of an adsorption assembly according to an embodiment.

[0026] Figure 5 An embodiment Figure 3 Schematic diagram after removing the protective parts and support components.

[0027] Figure 6 An embodiment Figure 5 Schematic diagram after removing the external adsorption filter.

[0028] Figure 7 An exploded view of a portion of the internal cleaning components of an embodiment.

[0029] Figure 8 It is a three-dimensional schematic diagram of a part of the cleaning element of an embodiment.

[0030] Fig. 9 It is a three-dimensional schematic diagram of a rotating fan according to an embodiment.

[0031] Fig.10 It is a three-dimensional schematic diagram of another part of the cleaning element of an embodiment.

[0032] Fig.11 The figure is a cross-sectional view of an adsorption filter screen according to an embodiment.

[0033] In the figure: 10, purification assembly; 11, purification element; 12, air inlet pipe; 13, air outlet pipe; 14, purification protection shell; 15, dosing tube; 16, partition plate; 17, purification chamber; 170, stirring element; 171, rotating rod; 172, rotating fan; 173, stirring fan; 20, support assembly; 21, support frame; 22, fixing ring; 30, adsorption assembly; 31, protection element; 32, outer adsorption element; 33, inner adsorption element; 310, adsorption protection shell; 311, upper cover; 31 2. Exhaust pipe; 313. Chip removal pipe; 320. Fixed collar; 321. External adsorption filter; 322. Sliding groove; 330. Sliding rod; 331. Internal adsorption filter; 332. Magnet upper cover; 333. Magnetic ring; 334. Hinged lower cover; 40. Internal cleaning assembly; 41. Rope member; 42. Cleaning member; 410. Roller member; 411. Rope; 412. Rope section; 413. Support column section; 420. Fixed column; 421. Fixed rod; 422. Upper clamping ring; 423. Lower retaining ring; 424. Rotating fan; 425. Sliding column; 426. Cylindrical brush; 427. Stop groove; 428. Through groove; 429. Connecting ring; 430. Bottom plate; 431. Wind-bearing plate; 432. Retaining groove; 433. Retaining column; 50. External scraper assembly; 51. Support rod; 52. Upper arc scraper; 53. Lower annular scraper; 54. Connecting column; 55. Clearance groove. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0037] An embodiment provided by the present invention is as follows: Figures 1 to 11 As shown, a gas purification device for fine chemical industry includes a purification component 10, a support component 20, an adsorption component 30, an internal cleaning component 40 and an external scraper component 50. The purification component 10 and the support component 20 are both placed on the ground, and the support component 20 is located on one side of the purification component 10. The adsorption component 30 is mounted on the top of the support component 20. The internal cleaning component 40 and the external scraper component 50 are both installed inside the adsorption component 30, and the internal cleaning component 40 is located below the external scraper component 50. The adsorption component 30 includes a protective member 31, an external adsorption member 32 and an internal adsorption member 33. 3. The protective member 31 is mounted on the top of the supporting assembly 20, the outer adsorption member 32 is mounted inside the protective member 31, the inner adsorption member 33 is slidably mounted on the inner side wall of the outer adsorption member 32, the inner cleaning assembly 40 is located between the outer adsorption member 32 and the inner adsorption member 33, and the inner cleaning assembly 40 is located below the inner adsorption member 33. The inner cleaning assembly 40 includes two rope members 41 and a cleaning member 42, the upper ends of the two rope members 41 are connected to the top of the inner adsorption member 33, and the two rope members 41 are respectively located on both sides of the inner adsorption member 33, and the bottom of the cleaning member 42 is fixedly connected to the lower end of the rope member 41.

[0038] The purification component 10 can make the exhaust gas react with the purification liquid more thoroughly and accelerate the reaction rate of the exhaust gas and the purification liquid. The support component 20 is used to support the adsorption component 30. The inner adsorption component 33 of the adsorption component 30 is used to filter the dust and impurities in the purified exhaust gas. The outer adsorption component 32 can filter the purified exhaust gas again. The cleaning component 42 of the internal cleaning component 40 can clean the inner adsorption component 33 to prevent the filter from being blocked, thereby extending the service life of the purification device and reducing the number of replacement and maintenance. The rope component 41 can drive the cleaning component 42 to clean the inside of the inner adsorption component 33. The external scraper component 50 can scrape off the dust and impurities on the outer surface of the inner adsorption component 33 to prevent the filter from being blocked, thereby extending the service life of the purification device and reducing the number of replacement and maintenance.

[0039] like Figure 1 to Figure 2 As shown, the purification component 10 includes a purification component 11, an air inlet pipe 12 and an air outlet pipe 13. The purification component 11 is placed on the ground, one end of the air inlet pipe 12 is connected to the exhaust gas source, and the middle part of the air inlet pipe 12 is passed through one side wall of the purification component 11, one end of the air outlet pipe 13 is passed through the middle part of the protective component 31, and the middle part of the air outlet pipe 13 is passed through the other side wall of the purification component 11.

[0040] like Figures 1 to 3As shown, the purification element 11 includes a purification protection shell 14, a dosing tube 15 and a partition plate 16. The purification protection shell 14 is placed on the ground, the upper end of the dosing tube 15 is fixedly inserted into the top of the purification protection shell 14, the partition plate 16 is installed inside the purification protection shell 14, and a purification chamber 17 is formed between the partition plate 16 and the bottom of the purification protection shell 14. The purification chamber 17 contains a purification liquid. The other end of the air inlet pipe 12 is penetrated through the upper and lower side walls of the partition plate 16, the bottom of the dosing tube 15 is penetrated through the upper and lower side walls of the partition plate 16, and the other end of the air outlet pipe 13 is penetrated through the upper and lower side walls of the partition plate 16. A switch is installed on the top of the dosing tube 15. When the switch is turned on, feeding can be carried out, and when it is closed, exhaust gas can be prevented from flowing out of the dosing tube 15.

[0041] like Figures 1 to 3 As shown, a stirring member 170 is rotatably provided at the bottom of the purification chamber 17, and the stirring member 170 is located directly below the other end of the air inlet pipe 12. The stirring member 170 includes a rotating rod 171, a rotating fan 172 and two stirring fans 173. The stirring member 170 is rotatably provided at the bottom of the rotating rod 171, and the rotating fan 172 is fixedly installed on the top of the rotating rod 171, and the rotating fan 172 is located directly below the other end of the air inlet pipe 12, and the two stirring fans 173 are fixedly installed in the middle of the rotating rod 171.

[0042] like Figures 1 to 4 As shown, the support assembly 20 includes a support frame 21 and a fixing ring 22 . The support frame 21 is placed on the ground, and the fixing ring 22 is installed on the top side wall of the support frame 21 .

[0043] like Figure 3 to Figure 4 As shown, the protective member 31 includes an adsorption protective shell 310, an upper cover 311, an exhaust pipe 312 and a chip removal pipe 313. The side wall of the adsorption protective shell 310 is clamped in the fixing ring 22, the upper cover 311 is covered on the top of the adsorption protective shell 310, the exhaust pipe 312 is penetrated through the bottom of the side wall of the adsorption protective shell 310, and the chip removal pipe 313 is penetrated through the bottom of the adsorption protective shell 310. An on-off switch is installed on the side wall of the chip removal pipe 313, and the dust and impurities stored in the chip removal pipe 313 can be discharged by turning on the on-off switch.

[0044] like Figures 3 to 7 As shown, the external adsorption component 32 includes a fixed ring 320 and an external adsorption filter 321. The fixed ring 320 is fixedly connected to the middle part of the inner wall of the adsorption protective shell 310. The middle part of the external adsorption filter 321 is clamped in the fixed ring 320. The inner wall of the external adsorption filter 321 is provided with two sliding grooves 322. The top of the chip removal tube 313 is inserted into the bottom of the external adsorption filter 321. The bottom of the external adsorption filter 321 is funnel-shaped.

[0045] like Figures 3 to 7As shown, the inner adsorption member 33 includes two sliding rods 330, an inner adsorption filter 331, a magnetic upper cover 332, a magnetic ring 333 and two hinged lower covers 334, one end of the two sliding rods 330 is slidably clamped in the two sliding grooves 322, the side wall of the inner adsorption filter 331 is fixedly connected to the other end of the two sliding rods 330, the magnetic upper cover 332 is installed on the top of the inner adsorption filter 331, one end of the air outlet pipe 13 is sequentially penetrated through the purification protection shell 14, the outer adsorption filter 321, the magnetic ring (333) and the magnetic upper cover 332, the magnetic upper cover 332 is slidably sleeved on one end of the air outlet pipe 13, the magnetic ring 333 is fixedly sleeved on one end of the air outlet pipe 13, and the magnetic ring 333 is abutted against the top of the magnetic upper cover 332, and the two hinged lower covers 334 are installed on the bottom of the inner adsorption filter 331, and the magnetic properties of the magnetic upper cover 332 and the magnetic ring 333 are opposite.

[0046] like Figures 3 to 11As shown, each rope member 41 includes two roller members 410 and a rope 411. The middle parts of the two roller members 410 are both inserted into the outer adsorption filter screen 321, and the upper ends of the two roller members 410 are fixedly connected to the top of the adsorption protection shell 310. One end of the rope 411 is slidably inserted into the magnetic ring 333, and one end of the rope 411 is fixedly connected to the magnet upper cover 332. The middle part of the rope 411 is wound around the two roller members 410. The rope 411 includes a rope segment 412 and a receiving column segment 413. The upper end of the rope segment 412 is slidably inserted into the magnetic ring 333. The magnetic ring 333, and the upper end of the rope segment 412 is fixedly connected to the magnet upper cover 332, one end of the receiving column segment 413 is fixedly connected to the lower end of the rope segment 412, the cleaning member 42 includes four L-shaped fixed columns 420, an upper clamping ring 422, a fixed rod 421, a lower clamping ring 423, a rotating fan 424, a sliding column 425 and a cylindrical brush 426, the upper ends of the four fixed columns 420 are fixedly connected to the bottom side wall of one end of the outlet pipe 13, the side wall of the upper clamping ring 422 is fixedly connected to the lower ends of the four fixed columns 420, and the top of the fixed rod 421 is fixed The lower clamping ring 423 is fixedly sleeved on the upper end of the fixed rod 421, and the upper clamping ring 422 is located above the lower clamping ring 423. The rotating fan 424 is slidably sleeved on the upper end of the fixed rod 421, and the rotating fan 424 is located between the upper clamping ring 422 and the lower clamping ring 423. The bottom of the rotating fan 424 is provided with a stop groove 427. The sliding column 425 is slidably sleeved on the lower end of the fixed rod 421. The cylindrical brush 426 is fixedly sleeved on the middle of the sliding column 425. The sliding column 425 The top of the sliding column 425 is provided with a through groove 428, and the radius of the through groove 428 is greater than the radius of the lower clamping ring 423, and the radius of the positioning groove 427 is greater than the radius of the sliding column 425. The lower end of the sliding column 425 is provided with a connecting ring 429, and the lower end of the sliding column 425 is rotatably clamped on the top of the connecting ring 429. The other ends of the two receiving column sections 413 are fixedly connected to the connecting ring 429. The bottom of the fixed rod 421 is provided with a bottom plate 430, and the top of the cylindrical brush 426 is provided with a wind bearing plate 431, which is fixedly sleeved on the upper end of the sliding column 425. The fixed column 420 can prevent the fixed rod 421 from shaking, and the fixed column 420 can also prevent the inner adsorption filter 331 from falling out. The diameter of the outlet pipe 13 can be replaced so that the gas blown out of the outlet pipe 13 can drive the rotating fan 424 to rotate, and the rotation of the rotating fan 424 can drive the cylindrical brush 426 to rotate.

[0047] like Figures 4 to 11As shown, the external scraper assembly 50 includes two upper arc scrapers 52, a lower annular scraper 53 and two connecting posts 54. The two upper arc scrapers 52 are sleeved and abutted against the middle of the inner adsorption filter 331, and the lower annular scraper 53 is sleeved and abutted against the bottom of the inner adsorption filter 331. The tops of the two connecting posts 54 are fixedly connected to the bottoms of the two upper arc scrapers 52, and the bottoms of the two connecting posts 54 are fixedly connected to the tops of the lower annular scrapers 53. Two support rods 51 are installed on the top of each upper arc scraper 52. The two support rods 51 The middle part is penetrated by the outer adsorption filter screen 321, and the top of the two bracket rods 51 is fixedly connected to the top of the adsorption protective shell 310, the weight of the inner adsorption component 33 is less than the weight of the cleaning component 42, and the side wall of the through groove 428 is provided with a card slot 432, the card slot 432 is connected with the through groove 428, and the card slot 432 passes through the top surface of the sliding column 425, and the side wall of the positioning groove 427 is installed with a card column 433, a gap groove 55 is formed between the two upper arc scrapers 52, and the two sliding rods 330 are located directly above the gap groove 55.

[0048] During installation: the adsorption component 30 is mounted on the top of the support component 20, the internal cleaning component 40 and the external scraper component 50 are both mounted inside the adsorption component 30, the external scraper component 50 is mounted outside the adsorption component 30, the protective member 31 is mounted on the top of the support component 20, and the external adsorption component 32 is mounted inside the protective member 31. The partition plate 16 is mounted inside the purification protective shell 14, the rotating fan 172 is fixedly mounted on the top of the rotating rod 171, the two stirring fans 173 are fixedly mounted on the middle of the rotating rod 171, the fixing ring 22 is mounted on the top side wall of the support frame 21, the magnetic upper cover 332 is mounted on the top of the internal adsorption filter 331, and the two hinged lower covers 334 are mounted on the bottom of the internal adsorption filter 331.

[0049] When in use: 1. The exhaust gas source enters the purification liquid through the air inlet pipe 12, the purification liquid can treat the exhaust gas, the exhaust gas is treated in the purification liquid, and the exhaust gas rushes out from the other end of the air inlet pipe 12. The rotating fan 172 is located below the air inlet pipe 12. The exhaust gas will blow the rotating fan 172 to rotate, and the rotating rod 171 rotates with the rotating fan 172. The rotating fan 172 and the two stirring fans 173 rotate with the rotating rod 171, so that the two stirring fans 173 can stir the purification liquid, so that the exhaust gas can react with the purification liquid more thoroughly, thereby accelerating the reaction rate of the exhaust gas and the purification liquid.

[0050] 2. The waste gas after reacting with the purification liquid is discharged into the inner adsorption filter 331 through the outlet pipe 13. The waste gas is adsorbed and filtered by the inner adsorption filter 331 and the outer adsorption filter 321 and then discharged from the exhaust pipe 312, completing the purification of the waste gas and preventing the waste gas from polluting the environment. After long-term use, the inner adsorption filter 331 absorbs dust and impurities in the waste gas, the weight of the inner adsorption filter 331 increases, the magnet cover 332 is separated from the attraction of the magnetic ring 333, the inner adsorption filter 331 moves downward, the two sliding rods 330 move downward with the inner adsorption filter 331, the magnet cover 332 moves downward, the end of the rope segment 412 connected to the magnet cover 332 moves downward, the other end of the rope segment 412 moves upward, and the receiving column segment 413 and the connecting ring 429 move upward with the rope segment 412 When the supporting column section 413 moves following the rope section 412, the supporting column section 413 will not tilt. The supporting column section 413 moves upward to lift the sliding column 425 to move upward, and the sliding column 425 moves upward so that the wind-bearing plate 431 and the cylindrical brush 426 can lift the two hinged lower covers 334. The two hinged lower covers 334 are flipped open upward, and the cylindrical brush 426 enters the interior of the inner adsorption filter 331 to clean the interior of the inner adsorption filter 331 to prevent the inner wall of the inner adsorption filter 331 from being blocked and unable to continue filtering the exhaust gas.

[0051] 3. After the cylindrical brush 426 enters the interior of the inner adsorption filter 331, it continues to move upward, and the top of the sliding column 425 is inserted into the stop groove 427 at the bottom of the rotating fan 424, so that the rotating fan 424 moves upward with the sliding column 425, and the sliding column 425 will not be stuck by the lower clamping ring 423. After the sliding column 425 lifts up the rotating fan 424, the lower clamping ring 423 enters the through groove 428, and the sliding column 425 lifts up the rotating fan 424 and gradually approaches the bottom of one end of the outlet pipe 13. The rotating fan 424 is flushed by the exhaust gas from the outlet pipe 13. Under the influence of the blowing and the shaking caused by the sliding column 425 when it is pushed, the locking column 433 of the rotating fan 424 will be locked in the locking groove 432, and the sliding column 425 will go deeper into the stop groove 427. After the rotating fan 424 is close to the outlet pipe 13, the exhaust gas blown out of the outlet pipe 13 causes the rotating fan 424 to rotate, so that the rotating fan 424 can drive the sliding column 425 to rotate, thereby allowing the cylindrical brush 426 to more thoroughly clean the inside of the inner adsorption filter 331, preventing the inner wall of the inner adsorption filter 331 from being blocked and unable to continue to filter the exhaust gas. After the cylindrical brush 426 completely enters the inner adsorption filter 331, the two hinged lower covers 334 will flip downward, restore to the original state, and close the bottom of the inner adsorption filter 331.

[0052] 4. When the inner adsorption filter 331 adsorbs dust and impurities in the exhaust gas, the weight of the inner adsorption filter 331 increases, and the magnetic upper cover 332 is separated from the attraction of the magnetic ring 333. When the inner adsorption filter 331 moves downward, the upper arc scraper 52 is used to clean and scrape the upper end of the outer surface side wall of the inner adsorption filter 331, and the lower annular scraper 53 is used to clean and scrape the lower end of the outer surface side wall of the inner adsorption filter 331 to prevent the inner wall of the inner adsorption filter 331 from being blocked and unable to continue to filter the exhaust gas, thereby extending the service life of the purification device and reducing the number of replacement and maintenance times.

[0053] 5. After the dust and impurities adsorbed on the inner and outer surfaces of the inner adsorption filter 331 are cleaned, the weight of the inner adsorption filter 331 decreases, the cylindrical brush 426 is attached with dust and impurities, the weight of the cylindrical brush 426 increases, and the cylindrical brush 426 moves downward. When moving downward, the cylindrical brush 426 pushes the two hinged lower covers 334 to flip downward. After the two hinged lower covers 334 are opened, they will abut against the side walls of the cylindrical brush 426 under the action of the restoring force to scrape off the dust and impurities attached to the cylindrical brush 426, so that the dust and impurities fall off and fall onto the outer adsorption filter 3 21, the bottom of the outer adsorption filter 321 is funnel-shaped, so that dust and impurities fall into the chip removal pipe 313 under the shaking of the protective member 31 and the funnel-shaped bottom of the outer adsorption filter 321. At the same time, when the cylindrical brush 426 moves downward, the exhaust gas will also blow the cylindrical brush 426, so that the dust and impurities of the cylindrical brush 426 fall into the chip removal pipe 313, preventing the dust and impurities dropped by the cylindrical brush 426 from clogging the outer adsorption filter 321 and making it unable to continue to filter the exhaust gas. At the same time, the service life of the purification device is extended and the number of replacement and maintenance is reduced.

[0054] 6. After the dust and impurities adsorbed on the inner and outer surfaces of the inner adsorption filter 331 are cleaned, the weight of the inner adsorption filter 331 decreases, the columnar brush 426 is attached with dust and impurities, the weight of the columnar brush 426 increases, and the wind-bearing plate 431 moves downward under the blowing of the exhaust gas, and the inner receiving column section 413 moves downward with the columnar brush 426, and the inner receiving column section 413 pulls the other end of the rope section 412 to move downward, so that the end of the pulling rope section 412 connected to the magnet upper cover 332 moves upward The adsorption filter 331 moves upward following the end of the rope segment 412 connected to the magnetic upper cover 332, and finally the magnetic upper cover 332 is re-adsorbed on the magnetic ring 333, and the rotating fan 424 is disengaged from the sliding column 425 and abuts on the lower retaining ring 423. The upper retaining ring 422 prevents the rotating fan 424 from escaping, and the bottom plate 430 prevents the sliding column 425 from detaching from the fixed rod 421. This is repeated to prevent the filter from being blocked and unable to continue filtering the exhaust gas. At the same time, the service life of the purification device is extended and the number of replacement and maintenance times is reduced.

[0055] The present invention sets a rotating fan 172. When the exhaust gas source enters the purified liquid through the air intake pipe 12, the purified liquid can process the exhaust gas. The exhaust gas is processed in the purified liquid and rushes out from the other end of the air intake pipe 12. The rotating fan 172 is located below the air intake pipe 12. The exhaust gas will blow the rotating fan 172 to rotate. The rotating rod 171 rotates with the rotating fan 172. The rotating fan 172 and the two stirring fans 173 rotate with the rotating rod 171, so that the two stirring fans 173 can stir the purified liquid, so that the exhaust gas can react with the purified liquid more thoroughly, thereby accelerating the reaction rate of the exhaust gas and the purified liquid.

[0056] By setting the inner adsorption filter 331, after long-term use, the inner adsorption filter 331 absorbs dust and impurities in the exhaust gas, the weight of the inner adsorption filter 331 increases, the magnetic upper cover 332 is separated from the attraction of the magnetic ring 333, the inner adsorption filter 331 moves downward, the two sliding rods 330 follow the inner adsorption filter 331 to move downward, the magnetic upper cover 332 moves downward, the end of the rope segment 412 connected to the magnetic upper cover 332 moves downward, the other end of the rope segment 412 moves upward, the receiving column segment 413 and the connecting ring 429 follow the rope segment 412 moves upward, and when the supporting column section 413 follows the movement of the rope section 412, the supporting column section 413 will not tilt. The supporting column section 413 moves upward to lift the sliding column 425 to move upward, and the sliding column 425 moves upward so that the wind-bearing plate 431 and the cylindrical brush 426 can lift the two hinged lower covers 334. The two hinged lower covers 334 are flipped open upward, and the cylindrical brush 426 enters the interior of the inner adsorption filter 331 to clean the interior of the inner adsorption filter 331 to prevent the inner wall of the inner adsorption filter 331 from being blocked and unable to continue filtering the exhaust gas.

[0057] By setting the cylindrical brush 426, the cylindrical brush 426 enters the interior of the inner adsorption filter 331 and continues to move upward, and the top of the sliding column 425 will be inserted into the stop groove 427 at the bottom of the rotating fan 424, so that the rotating fan 424 moves upward following the sliding column 425, and the sliding column 425 will not be stuck by the lower clamping ring 423. After the sliding column 425 lifts up the rotating fan 424, the lower clamping ring 423 enters the through groove 428, and the sliding column 425 lifts up the rotating fan 424 and gradually approaches the air outlet At the bottom of one end of the pipe 13, the rotating fan 424 is shaken by the exhaust gas rushing out of the exhaust pipe 13 and the sliding column 425, and the locking column 433 of the rotating fan 424 will be locked in the locking groove 432, and the sliding column 425 will go deeper into the stop groove 427, so that the rotating fan 424 can drive the sliding column 425 to rotate, and then the cylindrical brush 426 can more thoroughly clean the inside of the inner adsorption filter 331, preventing the inner wall of the inner adsorption filter 331 from being blocked and unable to continue to filter the exhaust gas. After the cylindrical brush 426 completely enters the inner adsorption filter 331, the two hinged lower covers 334 will flip down, return to the original state, and close the bottom of the inner adsorption filter 331.

[0058] By setting the upper arc scraper 52 and the lower annular scraper 53, the dust and impurities in the exhaust gas are adsorbed by the inner adsorption filter 331, the weight of the inner adsorption filter 331 increases, and the magnetic upper cover 332 is separated from the attraction of the magnetic ring 333. When the inner adsorption filter 331 moves downward, the upper arc scraper 52 is used to clean and scrape the upper end of the outer surface side wall of the inner adsorption filter 331, and the lower annular scraper 53 is used to clean and scrape the lower end of the outer surface side wall of the inner adsorption filter 331, so as to prevent the inner wall of the inner adsorption filter 331 from being blocked and unable to continue to filter the exhaust gas, thereby extending the service life of the purification device and reducing the number of replacement and maintenance times.

[0059] After the dust and impurities adsorbed on the inner and outer surfaces of the inner adsorption filter 331 are cleaned by the two hinged lower covers 334, the weight of the inner adsorption filter 331 decreases, the cylindrical brush 426 is attached with dust and impurities, the weight of the cylindrical brush 426 increases, and the cylindrical brush 426 moves downward. When moving downward, the cylindrical brush 426 pushes the two hinged lower covers 334 to flip downward. After the two hinged lower covers 334 are opened, they will abut against the side walls of the cylindrical brush 426 under the action of the restoring force, so as to scrape off the dust and impurities attached to the cylindrical brush 426, so that the dust and impurities fall off, and the dust and impurities fall on the outer adsorption filter 331. The bottom of the attached filter 321 and the bottom of the external adsorption filter 321 are funnel-shaped, so that dust and impurities fall into the chip removal pipe 313 under the shaking of the protective member 31 and the funnel-shaped bottom of the external adsorption filter 321. At the same time, when the cylindrical brush 426 moves downward, the exhaust gas will also blow the cylindrical brush 426, so that the dust and impurities of the cylindrical brush 426 fall into the chip removal pipe 313, preventing the dust and impurities dropped by the cylindrical brush 426 from clogging the external adsorption filter 321 and making it unable to continue to filter the exhaust gas. At the same time, the service life of the purification device is extended and the number of replacement and maintenance is reduced.

[0060] By setting the magnetic ring 333 and the magnetic upper cover 332, after the dust and impurities adsorbed on the inner and outer surfaces of the inner adsorption filter 331 are cleaned, the weight of the inner adsorption filter 331 decreases, the cylindrical brush 426 is attached with dust and impurities, the weight of the cylindrical brush 426 increases, the cylindrical brush 426 moves downward, and the inner adsorption filter 331 moves upward. Finally, the magnetic upper cover 332 abuts and adsorbs on the magnetic ring 333 again, the rotating fan 424 breaks away from the clamping of the sliding column 425, abuts on the lower clamping ring 423, the upper clamping ring 422 prevents the rotating fan 424 from falling off, and the bottom plate 430 prevents the sliding column 425 from breaking away from the fixing rod 421. This is repeated to prevent the filter from being blocked and unable to continue filtering the exhaust gas. At the same time, the service life of the purification device is extended and the number of replacement and maintenance times is reduced.

[0061] The present invention has a simple structure and can make the exhaust gas react more thoroughly with the purification liquid, accelerate the reaction rate of the exhaust gas and the purification liquid, and at the same time, by providing a brush, it can prevent the filter from being blocked and unable to continue filtering the exhaust gas, thereby extending the service life of the purification device and reducing the number of replacement and maintenance times.

[0062] All possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-mentioned embodiments only express several embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A gas purification device for fine chemical industry, characterized in that: The invention comprises a purification component (10), a support component (20), an adsorption component (30), an internal cleaning component (40) and an external scraper component (50); the purification component (10) and the support component (20) are both placed on the ground, and the support component (20) is located on one side of the purification component (10); the adsorption component (30) is mounted on the top of the support component (20); the internal cleaning component (40) and the external scraper component (50) are both mounted inside the adsorption component (30), and the internal cleaning component (40) is located below the external scraper component (50); the adsorption component (30) comprises a protective member (31), an external adsorption member (32) and an internal adsorption member (33); the protective member (31) is mounted on the top of the support component (20); the internal cleaning component (40) and the external scraper component (50) are both mounted inside the adsorption component (30), and the internal cleaning component (40) is located below the external scraper component (50); the adsorption component (30) comprises a protective member (31), an external adsorption member (32) and an internal adsorption member (33); the protective member (31) is mounted on the top of the support component (20); the internal cleaning component (40) and the external scraper component (50) are mounted on the inside of ...); the internal cleaning component (40) and the external scraper component (50) are mounted on the bottom of the adsorption component (30); the internal cleaning component (40) and the external scraper component (50) are mounted The cleaning component (40) is installed on the top of the support component (20), the outer adsorption component (32) is installed inside the protective component (31), the inner adsorption component (33) is slidably clamped on the inner side wall of the outer adsorption component (32), the inner cleaning component (40) is located between the outer adsorption component (32) and the inner adsorption component (33), and the inner cleaning component (40) is located below the inner adsorption component (33), the inner cleaning component (40) comprises two rope components (41) and a cleaning component (42), the upper ends of the two rope components (41) are connected to the top of the inner adsorption component (33), and the two rope components (41) are respectively located on both sides of the inner adsorption component (33), and the bottom of the cleaning component (42) is fixedly connected to the lower end of the rope component (41).

2. The fine chemical gas purification device according to claim 1, characterized in that: The purification component (10) comprises a purification component (11), an air inlet pipe (12) and an air outlet pipe (13); the purification component (11) is placed on the ground; one end of the air inlet pipe (12) is connected to an exhaust gas source, and the middle portion of the air inlet pipe (12) is passed through a side wall of one side of the purification component (11); one end of the air outlet pipe (13) is passed through a middle portion of a protective component (31), and the middle portion of the air outlet pipe (13) is passed through a side wall of the other side of the purification component (11).

3. The fine chemical gas purification device according to claim 2, characterized in that: The purification element (11) comprises a purification protection shell (14), a drug dosing tube (15) and a partition plate (16); the purification protection shell (14) is placed on the ground; the upper end of the drug dosing tube (15) is fixedly inserted into the top of the purification protection shell (14); the partition plate (16) is installed inside the purification protection shell (14); a purification chamber (17) is formed between the partition plate (16) and the bottom of the purification protection shell (14); a purification liquid is contained in the purification chamber (17); the other end of the air inlet pipe (12) is passed through the upper and lower side walls of the partition plate (16); the bottom of the drug dosing tube (15) is passed through the upper and lower side walls of the partition plate (16); and the other end of the air outlet pipe (13) is passed through the upper and lower side walls of the partition plate (16).

4. The fine chemical gas purification device according to claim 3, characterized in that: A stirring member (170) is rotatably mounted at the bottom of the purification chamber (17). The stirring member (170) is located directly below the other end of the air inlet pipe (12). The stirring member (170) comprises a rotating rod (171), a rotating fan (172) and two stirring fans (173). The stirring member (170) is rotatably mounted at the bottom of the rotating rod (171). The rotating fan (172) is fixedly mounted on the top of the rotating rod (171). The rotating fan (172) is located directly below the other end of the air inlet pipe (12). The two stirring fans (173) are fixedly mounted in the middle of the rotating rod (171).

5. The fine chemical gas purification device according to claim 4, characterized in that: The support assembly (20) comprises a support frame (21) and a fixing ring (22); the support frame (21) is placed on the ground, and the fixing ring (22) is installed on the top side wall of the support frame (21).

6. The fine chemical gas purification device according to claim 5, characterized in that: The protective member (31) comprises an adsorption protective shell (310), an upper cover (311), an exhaust pipe (312) and a chip removal pipe (313); the side wall of the adsorption protective shell (310) is clamped in the fixing ring (22); the upper cover (311) is covered on the top of the adsorption protective shell (310); the exhaust pipe (312) is passed through the bottom of the side wall of the adsorption protective shell (310); and the chip removal pipe (313) is passed through the bottom of the adsorption protective shell (310).

7. The fine chemical gas purification device according to claim 6, characterized in that: The external adsorption member (32) comprises a fixed collar (320) and an external adsorption filter screen (321); the fixed collar (320) is fixedly connected to the middle portion of the inner wall of the adsorption protection shell (310); the middle portion of the external adsorption filter screen (321) is clamped in the fixed collar (320); the inner wall of the external adsorption filter screen (321) is provided with two sliding grooves (322); the top of the chip removal pipe (313) is inserted into the bottom of the external adsorption filter screen (321); and the bottom of the external adsorption filter screen (321) is funnel-shaped.

8. The fine chemical gas purification device according to claim 7, characterized in that: The inner adsorption member (33) comprises two sliding rods (330), an inner adsorption filter (331), a magnetic upper cover (332), a magnetic ring (333) and two hinged lower covers (334), one end of the two sliding rods (330) is slidably clamped in the two sliding grooves (322), the side wall of the inner adsorption filter (331) is fixedly connected to the other end of the two sliding rods (330), the magnetic upper cover (332) is installed on the top of the inner adsorption filter (331), and one end of the air outlet pipe (13) is sequentially connected to the inner adsorption filter (331). The magnetic ring (333) is inserted through the purification protection shell (14), the outer adsorption filter (321), the magnetic ring (333) and the magnetic upper cover (332); the magnetic upper cover (332) is slidably sleeved on one end of the air outlet pipe (13); the magnetic ring (333) is fixedly sleeved on one end of the air outlet pipe (13), and the magnetic ring (333) is in contact with the top of the magnetic upper cover (332); two hinged lower covers (334) are installed on the bottom of the inner adsorption filter (331); and the magnetic properties of the magnetic upper cover (332) and the magnetic ring (333) are opposite.

9. The fine chemical gas purification device according to claim 8, characterized in that: Each rope member (41) comprises two roller members (410) and a rope (411); the middle portions of the two roller members (410) are both inserted into the outer adsorption filter screen (321); the upper ends of the two roller members (410) are both fixedly connected to the top of the adsorption protection shell (310); one end of the rope (411) is slidably inserted into the magnetic ring (333); one end of the rope (411) is fixedly connected to the magnet upper cover (332); the middle portion of the rope (411) is wound around the two roller members (410); the rope (411) comprises a rope segment (412) and a receiving column segment (413); the upper end of the rope segment (412) is slidably inserted into the magnetic ring (333); 333), and the upper end of the rope segment (412) is fixedly connected to the magnet upper cover (332), one end of the receiving column segment (413) is fixedly connected to the lower end of the rope segment (412), the cleaning member (42) comprises four L-shaped fixed columns (420), an upper clamping ring (422), a fixed rod (421), a lower clamping ring (423), a rotating fan (424), a sliding column (425) and a columnar brush (426), the upper ends of the four fixed columns (420) are fixedly connected to the bottom side wall of one end of the air outlet pipe (13), the side wall of the upper clamping ring (422) is fixedly connected to the lower ends of the four fixed columns (420), and the top of the fixed rod (421) is fixedly penetrated The upper clamping ring (422) is located in the middle of the upper clamping ring (421), and the fixed rod (421) is located directly below the air outlet pipe (13). The lower clamping ring (423) is fixedly sleeved on the upper end of the fixed rod (421). The upper clamping ring (422) is located above the lower clamping ring (423). The rotating fan (424) is slidably sleeved on the upper end of the fixed rod (421), and the rotating fan (424) is located between the upper clamping ring (422) and the lower clamping ring (423). A stop groove (427) is provided at the bottom of the rotating fan (424). The sliding column (425) is slidably sleeved on the lower end of the fixed rod (421). The cylindrical brush (426) is fixedly sleeved on the middle of the sliding column (425). The sliding column (425) ) is provided with a through groove (428) at the top, and the radius of the through groove (428) is greater than the radius of the lower retaining ring (423), the radius of the positioning groove (427) is greater than the radius of the sliding column (425), a connecting ring (429) is installed at the lower end of the sliding column (425), the lower end of the sliding column (425) is rotatably clamped on the top of the connecting ring (429), the other ends of the two receiving column sections (413) are fixedly connected to the connecting ring (429), a bottom plate (430) is installed at the bottom of the fixing rod (421), and a wind bearing plate (431) is installed at the top of the cylindrical brush (426), and the wind bearing plate (431) is fixedly sleeved on the upper end of the sliding column (425).

10. The fine chemical gas purification device according to claim 9, characterized in that: The external scraper assembly (50) comprises two upper arc-shaped scrapers (52), a lower annular scraper (53) and two connecting columns (54); the two upper arc-shaped scrapers (52) are sleeved and abutted against the middle of the inner adsorption filter (331); the lower annular scraper (53) is sleeved and abutted against the bottom of the inner adsorption filter (331); the tops of the two connecting columns (54) are respectively fixedly connected to the bottoms of the two upper arc-shaped scrapers (52); and the bottoms of the two connecting columns (54) are fixedly connected to the tops of the lower annular scrapers (53); two support rods (51) are installed on the top of each upper arc-shaped scraper (52); the middles of the two support rods (51) are Both are penetrated through the outer adsorption filter screen (321), and the tops of the two support rods (51) are fixedly connected to the top of the adsorption protection shell (310), the weight of the inner adsorption component (33) is less than the weight of the cleaning component (42), a clamping groove (432) is opened on the side wall of the through groove (428), the clamping groove (432) is connected to the through groove (428), and the clamping groove (432) penetrates the top surface of the sliding column (425), and a clamping column (433) is installed on the side wall of the positioning groove (427), a gap groove (55) is formed between the two upper arc-shaped scrapers (52), and the two sliding rods (330) are located directly above the gap groove (55).

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