Air purification device for a paper production line

Abstract

The application discloses a paper production line air purification device and belongs to the air purification field. The paper production line air purification device comprises a primary impurity removal device, a secondary impurity removal device, a tertiary impurity removal device and a gas drying device, wherein the primary impurity removal device, the secondary impurity removal device, the tertiary impurity removal device and the gas drying device are connected through gas conveying pipes; and the secondary impurity removal device comprises a shell A. In the application, when a gas enters a cavity A by starting a motor, water vapor containing impurities can be attached to the inner side of the shell A. When the water containing impurities after condensation is accumulated on the upper side of a pressure plate A, the pressure plate A moves downward due to the pressure. The water containing impurities after condensation will enter the inside of a cavity B. When the pressure on the upper side of the pressure plate A decreases, the pressure plate A moves upward under the action of a spring until it returns to the initial position. The periphery of the pressure plate A is provided with rubber pistons to prevent the water containing impurities after condensation from leaking.

Description

Technical Field

[0001] This invention patent relates to the field of air purification technology, specifically to an air purification device for a paper production line. Background Technology

[0002] The paper industry is the sixth most polluting industry globally, generating large amounts of solid, liquid, and gaseous pollutants during its production process. In the actual paper production process, air pollution permeates the entire paper production line, primarily originating from the wire section, press section, and drying section of the paper machine. Under high-temperature baking conditions, the moisture in the pulp evaporates rapidly, carrying with it rosin acids, fatty acids (such as resin acids and unsaturated fatty acids), alcohols, and added wet-strength agents, defoamers, and other volatile organic compounds (VOCs). Paper industry exhaust gases are generally characterized by complex composition, multiple sources, and large temperature and humidity ranges, posing significant challenges to air purification.

[0003] Chinese Patent CN114159951A, published on March 11, 2022, discloses an air purification device for a corrugated paper production line. The device includes a housing with a base at its bottom. An air inlet is located on the left side wall of the housing. A dust collector, penetrating the top of the housing, is fixedly installed on the left side of the housing's inner cavity, and the air inlet is connected to the dust collector. An installation port is located at the top of the dust collector, and a pressure-sealing cover that mates with the installation port is inserted into the top of the port. A filter element that mates with the dust collector is located at the bottom of the pressure-sealing cover. A drain pipe, penetrating the bottom of the left side wall of the housing, is located at the bottom of the dust collector. When the above equipment is in use, under high-temperature baking conditions, the moisture in the pulp evaporates rapidly. This water vapor contains multiple impurities, and the high temperature and humidity of the air make it difficult for the above equipment to purify the polluted air generated under high-temperature baking conditions.

[0004] To address the shortcomings of existing technologies, this invention provides an air purification device for paper production lines, solving the problems mentioned in the background section. To achieve the above objectives, this invention provides the following technical solution: An air purification device for paper production lines, comprising a primary impurity removal device, a secondary impurity removal device, a tertiary impurity removal device, and a gas drying device. The primary, secondary, and tertiary impurity removal devices and the gas drying device are connected via an air supply pipe. The secondary impurity removal device includes a housing A, with an air supply pipe B fixedly connected to and attached to the inner side of the housing A. The housing A contains sequentially formed cavities A and B. An air supply pipe C is fixedly connected through and attached to the interior of cavity B. A pressure plate A is slidably connected to the upper part of cavity B and the inner side of the housing A. A telescopic rod A is fixedly connected to the lower part of the pressure plate A. A spring is fixedly connected to the lower part of rod A. A housing B is fixedly connected to the bottom of the spring. Four sets of support rods are fixedly connected to the outer side of housing B. An opening A is provided on the inner side of housing A above the cavity B. A housing C is fixedly connected above the opening A and inside the housing A. A pressure plate B is slidably connected to the inner side of housing C. A connecting rod is fixedly connected above the pressure plate B. The connecting rod passes through and is slidably connected above housing C. A valve assembly is assembled below the connecting rod. A housing D is assembled on the outer side of the valve assembly. An opening B is provided on the right side of housing D. Housing D is fixedly connected to the left side of housing A. An opening C is provided between housing D and housing A.

[0005] Preferably, the valve assembly includes a platform, which is fixedly connected to the bottom of the connecting rod. A baffle A is fixedly connected to the middle position of the bottom of the platform. Telescopic rods B are fixedly connected to the outer sides of both ends of the bottom of the platform. A valve base is slidably connected to the outer sides of both sets of telescopic rods B. A housing D is fixedly connected to the outer side of the valve base.

[0006] Preferably, the bottom of the outer shell A is configured as a sloping structure, and the sloping structure is from right to left and from high to low, and the opening of the opening A is configured as a conical structure, and the conical structure is from bottom to top and from wide to narrow.

[0007] Preferably, gas supply pipes A, B, C, and E are all part of a gas supply pipe. Gas supply pipe A is installed on the left side of the primary impurity removal device. Gas supply pipe B is installed between the primary and secondary impurity removal devices and is located on the right side of the primary impurity removal device and at the upper end of the secondary impurity removal device, respectively. Gas supply pipe C is installed between the secondary and tertiary impurity removal devices and is located above the secondary impurity removal device and at the lower end of the tertiary impurity removal device, respectively. Gas supply pipe E is installed between the tertiary impurity removal device and the gas drying device and is located at the upper end of the tertiary impurity removal device and above the gas drying device, respectively.

[0008] Preferably, the three-stage impurity removal device includes a housing E, with the air supply pipe C fixedly connected to the lower inner side of the housing E. The housing E has an opening inside it, and a water supply pipe A is fixedly connected to the inner side of the housing E. A housing F is fixedly connected to the lower part of the water supply pipe A. A water supply pipe B is fixedly connected to the upper inner side of the housing F. The water supply pipe B is fixedly connected and passes through the upper inner sides of both the housing E and housing F. A circular baffle A is rotatably connected to the inner side of the housing F. A support shaft is fixedly connected to the center lower part of the circular baffle A. A circular baffle B is fixedly connected to the outside of the support shaft and below the circular baffle A. An opening is provided on the bottom left side of the outer shell F. A large circular opening is provided on the inner side of the circular baffle A, and its diameter is equal to that of the inner side of the upper end of the outer shell F. A small circular opening is provided on the inner side of the circular baffle B, and its diameter is equal to that of the opening at the bottom of the outer shell F. A transmission assembly is installed at the bottom of the circular baffle B. An air supply pipe D is installed on the left side of the transmission assembly. The air supply pipe D is fixedly connected to and connected to the inside of the cavity B. A drug delivery pipe is fixedly connected to and connected to the top of the outer shell E.

[0009] Preferably, the transmission assembly includes an arc-shaped housing A, which is fixedly connected to the lower part of the circular baffle B. The internal piston of the arc-shaped housing A is slidably connected to the arc-shaped housing B, and the air supply pipe D is fixedly connected to and passes through the inner side of the arc-shaped housing B.

[0010] Preferably, the length of the transmission component is one-quarter of the circumference of the circular baffle B.

[0011] Preferably, the primary impurity removal device includes a condenser tube, which is assembled between gas supply pipe A and gas supply pipe B. Three sets of feed pipes A are assembled below the condenser tube. The three sets of feed pipes A are fixedly connected to a housing G below. A feed pipe base is slidably connected to the inside left side of the housing G. Three sets of feed pipes B are connected through and fixedly connected to the inside of the feed pipe base. A pressure block is slidably connected to the bottom inside the housing G. An electric telescopic rod is assembled to the right side of the pressure block and passes through the inside of the housing G. A baffle C is slidably connected to the top of the pressure block and is fixedly connected to the inside of the housing G. A discharge pipe is fixedly connected to the left end of the housing G.

[0012] Preferably, the base of the feeding tube is configured as a trapezoidal structure, and the structure is a trapezoidal structure that increases in width from right to left.

[0013] Preferably, the radii of the three sets of feeding pipes B are all smaller than the radii of the three sets of feeding pipes A, the lower part of the three sets of feeding pipes A corresponds one-to-one with the position of the three sets of feeding pipes B, and the top of the three sets of feeding pipes B are all set with an angled structure.

[0014] This invention patent provides an air purification device for a paper production line. It has the following beneficial effects: (1) In this application, when the motor is started and the gas enters the cavity A, the water vapor containing impurities can adhere to the inside of the outer shell A. When the water containing impurities accumulates on the top of the pressure plate A after condensation, the pressure plate A moves downward due to the pressure. The water containing impurities after condensation will enter the interior of the cavity B. When the pressure on the top of the pressure plate A decreases, the pressure plate A moves upward under the action of the spring until it returns to the initial position. The pressure plate A is surrounded by rubber pistons to prevent the leakage of water containing impurities after condensation.

[0015] (2) In this application, when the circular baffle B is rotated to the corresponding position, the opening on the circular baffle B is aligned with the opening of the outer shell F, and the opening of the circular baffle A is completely deviated from the upper interior of the outer shell F, so as to reduce the loss of the medicine when the medicine containing impurities flows into the outside. When the opening of the circular baffle B is completely deviated from the upper interior of the outer shell F, the opening of the circular baffle A coincides with the upper inner side of the outer shell F, so as to prevent the medicine from flowing out and continue to precipitate impurities.

[0016] (3) In this application, when the pressure block moves to the left, it can push the sewage containing impurities after condensation to the outside through the discharge pipe and squeeze the base of the feeding pipe upward. When the pressure block moves to the right, the base of the feeding pipe returns to the initial position and prevents the sewage containing impurities after condensation from flowing to the outside. By setting a baffle C on the inside of the outer shell G, the pressure block prevents the sewage containing impurities after condensation from entering the right end of the inner side of the outer shell G when it moves. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the overall front appearance of the present invention patent; Figure 2 This is a three-dimensional structural diagram of the overall rear appearance of the present invention patent; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the secondary impurity removal device of this invention patent; Figure 4 This is a schematic diagram of the internal three-dimensional structure of the lower end of the secondary impurity removal device of this invention patent. Figure 5 This is a schematic diagram of the internal three-dimensional structure of the outer shell D of this invention patent; Figure 6 This is a schematic diagram of the internal three-dimensional structure of the three-stage impurity removal device of this invention patent. Figure 7 This is a three-dimensional structural diagram of the back of the three-stage impurity removal device of this invention patent; Figure 8 This is a schematic diagram of the internal three-dimensional structure of the outer shell F of this invention patent; Figure 9 This is a schematic diagram of the internal three-dimensional structure of the transmission component of this invention patent; Figure 10 This is a schematic diagram of the internal three-dimensional structure of the primary impurity removal device of this invention patent; Figure 11 This is a three-dimensional structural diagram of the top of the feed tube B of this invention patent.

[0018] In the diagram: 102, Primary impurity removal device; 104, Secondary impurity removal device; 106, Tertiary impurity removal device; 108, Gas drying device; 201, Outer shell A; 202, Cavity A; 203, Cavity B; 204, Opening C; 205, Opening A; 206, Support rod; 208, Outer shell B; 209, Spring; 210, Telescopic rod A; 211, Pressure plate A; 212, Outer shell C; 213, Pressure plate B; 214, Connecting rod; 215, Platform; 216, Outer shell D; 217, Telescopic rod B; 218, Opening B; 219, Valve assembly; 220. Baffle A; 221, Valve base; 301, Housing E; 303, Medicine delivery pipe; 304, Water delivery pipe A; 305, Water delivery pipe B; 307, Transmission assembly; 401, Housing F; 403, Circular baffle B; 404, Support shaft; 405, Circular baffle A; 501, Gas delivery pipe D; 502, Arc-shaped housing A; 503, Arc-shaped housing B; 601, Condenser pipe; 602, Feeding pipe A; 603, Housing G; 604, Feeding pipe B; 605, Feeding pipe base; 606, Baffle C; 607, Electric telescopic rod; 608, Pressure block; 609, Waste discharge pipe. Detailed Implementation

[0019] The technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0020] Please see Figures 1-11This invention patent provides a technical solution: an air purification device for a paper production line, comprising a primary impurity removal device 102, a secondary impurity removal device 104, a tertiary impurity removal device 106, and a gas drying device 108. The primary impurity removal device 102, secondary impurity removal device 104, tertiary impurity removal device 106, and gas drying device 108 are connected by air supply pipes. Air supply pipes A, B, C, and E are all parts of an air supply pipe system. Air supply pipe A is installed on the left side of the primary impurity removal device 102. Air supply pipe B is installed between the primary impurity removal device 102 and the secondary impurity removal device 104, respectively on the right side of the primary impurity removal device 102 and at the upper end of the secondary impurity removal device 104. Air supply pipe C is installed between the secondary impurity removal device 104 and the tertiary impurity removal device 108. Devices 106 are positioned between each other, above the secondary impurity removal device 104 and below the tertiary impurity removal device 106. Gas delivery pipe E is installed between the tertiary impurity removal device 106 and the gas drying device 108, above the tertiary impurity removal device 106 and above the gas drying device 108. The gas delivery pipe connects the primary impurity removal device 102, the secondary impurity removal device 104, the tertiary impurity removal device 106, and the gas drying device 108, allowing gas to sequentially enter each of these devices. The secondary impurity removal device 104 includes a housing A201, with gas delivery pipe B fixedly connected to and attached to the inside of the housing A201. The interior of the housing A201... Cavity A202 and cavity B203 are sequentially provided. A gas supply pipe C is fixedly connected through and to the interior of cavity B203. By setting cavity A202 inside the outer shell A201 and connecting the gas supply pipe B inside cavity A202, when gas enters cavity A202, water vapor containing impurities can adhere to the inner side of the outer shell A201 and settle at the bottom of cavity A202. Above cavity B203 and inside the outer shell A201, a pressure plate A211 is slidably connected to a piston. A telescopic rod A210 is fixedly connected below pressure plate A211. A spring 209 is fixedly connected below telescopic rod A210. The bottom of spring 209 is fixedly connected to outer shell B208. Four sets of supports are fixedly connected to the outer side of outer shell B208. The support rod 206, with a pressure plate A211 installed above the cavity B203, and a spring 209 installed between the telescopic rod A210 and the outer shell B208, allows the pressure plate A211 to move downwards due to the pressure when condensed wastewater containing impurities accumulates above it. This allows the condensed wastewater to enter the cavity B203. When the pressure above the pressure plate A211 decreases, the spring 209 causes it to move upwards until it returns to its initial position. Rubber pistons are installed around the pressure plate A211 to prevent leakage of condensed wastewater containing impurities. The system comprises the pressure plate A211, telescopic rod A210, spring 209, and outer shell B208.To address the gas leakage issue in the air purification device used in the paper production line, an opening A205 is provided on the inner side of the outer casing A201 above the cavity B203. An outer casing C212 is fixedly connected above the opening A205 and inside the outer casing A201. A pressure plate B213 is slidably connected to the inner side of the outer casing C212. A connecting rod 214 is fixedly connected above the pressure plate B213, passing through and slidably connected above the outer casing C212. A valve assembly 219 is mounted below the connecting rod 214. An outer casing D216 is mounted on the outer side of the valve assembly 219. The valve assembly 219 includes a platform 215, which is fixedly connected below the connecting rod 214. A valve assembly D216 is fixedly connected to the middle of the lower part of the platform 215. Telescopic rods B217 are fixedly connected to the outer sides of both ends of the baffle A220 and platform 215. Valve bases 221 are slidably connected to the outer sides of both sets of telescopic rods B217. A housing D216 is fixedly connected to the outer side of the valve base 221. An opening A205 is made on the inner side of the housing A201 above the cavity B203. A housing C212 is installed above the cavity B203 and inside the housing A201. A pressure plate B213 is installed inside the housing C212. As the condensed wastewater containing impurities in the cavity B203 gradually increases, the air pressure above the cavity B203 gradually increases. When the air pressure above the cavity B203 reaches a certain level, the pressure plate B213 moves upward due to the air pressure. A connecting rod 214 is installed above the pressure plate B213, and a valve assembly 219 is installed below the connecting rod 214. The platform 215 of the valve assembly 219 can move upwards via the connecting rod 214. When the air pressure in the cavity B203 decreases, the platform 215 of the valve assembly 219 returns to its initial position. Telescopic rods B217 are installed on both outer sides of the platform 215, and a valve base 221 is installed below the telescopic rods B217 to fix the platform 215. Finally, a baffle A220 is installed below the platform 215. Because the baffle A220 is fixedly connected to the platform 215, it moves with the platform 215. This arrangement of pressure plate B213, housing C212, and connecting rod... Rod 214 and valve assembly 219 are used to automatically handle impurities in the air purification device used in the paper production line. An opening B218 is provided on the right side of the outer casing D216. This opening allows wastewater containing impurities to be discharged to the outside after condensation when baffle A220 rises. When baffle A220 returns to its initial position, the condensed wastewater containing impurities will no longer flow into the outside. The outer casing D216 is fixedly connected to the left side of the outer casing A201. An opening C204 is provided between the outer casing D216 and the outer casing A201. This opening C204 allows wastewater containing impurities to flow into the interior of the outer casing D216 from the cavity B203.The bottom of the outer casing A201 is designed with a sloping structure, which slopes from right to left from high to low. The opening A205 is designed with a conical structure, which slopes from bottom to top from wide to narrow. The bottom of the outer casing A201 is designed with a right-high, left-low sloping structure, which allows the wastewater containing impurities after condensation to flow more smoothly into the interior of the outer casing D216. The opening A205 is designed with a bottom-wide, top-narrow conical structure, which allows the pressure plate B213 to bear force better. The three-stage impurity removal device 106 includes an outer casing E301, a gas supply pipe C fixedly connected to the lower inner side of the outer casing E301, a water supply pipe A304 fixedly connected to the inner side of the outer casing E301, and an outer casing fixedly connected to the lower part of the water supply pipe A304. F401, a water pipe B305 is fixedly connected to the upper inner side of the outer casing F401. The water pipe B305 is fixedly connected and passes through the upper inner side of the outer casing E301 and the outer casing F401. A circular baffle A405 is rotatably connected to the inner side of the outer casing F401. A support shaft 404 is fixedly connected to the center of the lower part of the circular baffle A405. A circular baffle B403 is fixedly connected to the outer side of the support shaft 404 and below the circular baffle A405. An opening is provided on the bottom left side of the outer casing F401. A large circular opening with the same diameter as the inner upper part of the outer casing F401 is provided on the inner side of the circular baffle A405. A small circular opening with the same diameter as the opening at the bottom of the outer casing F401 is provided on the inner side of the circular baffle B403. By fixing and connecting the upper part of the outer shell F401 to the lower inner side of the outer shell E301 with a water pipe A304, the mixed impurity medicine solution can enter the interior of the outer shell F401 from the interior of the outer shell E301. A circular baffle A405 and a circular baffle B403 are rotatably connected inside the outer shell F401, allowing them to rotate within the shell. A support shaft 404 is fixedly connected between the circular baffles A405 and B403, allowing the circular baffle B403 to rotate and drive the circular baffle A405 to rotate. Large and small openings are respectively made on the outer sides of the circular baffles A405 and B403, and the outer shell F401... An opening of the same size as the opening on the circular baffle B403 is provided at the lower left end. This ensures that when the circular baffle B403 is rotated to the corresponding position, the opening on the circular baffle B403 aligns with the opening of the outer shell F401, and the opening of the circular baffle A405 is completely offset from the upper interior of the outer shell F401. This reduces the loss of the medicine when it flows into the outside containing impurities. When the opening of the circular baffle B403 is completely offset from the upper interior of the outer shell F401, the opening of the circular baffle A405 coincides with the upper inner side of the outer shell F401, thus preventing the medicine from flowing out and continuing to settle impurities. A transmission assembly 307 is installed at the bottom of the circular baffle B403, and an air supply pipe D501 is installed on the left side of the transmission assembly 307.The transmission assembly 307 includes an arc-shaped housing A502, which is fixedly connected to the lower part of a circular baffle B403. An arc-shaped housing B503 is slidably connected to the inner side of the arc-shaped housing A502 via a piston. An air supply pipe D501 is fixedly connected to and passes through the inner side of the arc-shaped housing B503. By setting the arc-shaped housing A502 below the circular baffle B403 and slidably connecting the arc-shaped housing B503 to its inner side, and by connecting the interior of the arc-shaped housing B503 to the air supply pipe D501, when the air pressure inside the cavity B203 increases, the air pressure inside the arc-shaped housing A502 gradually pushes the arc-shaped housing B503 to move. When the air pressure inside the cavity B203 decreases, the arc-shaped housing B503 gradually returns to its initial position. The transmission component 307 is one-quarter the circumference of the circular baffle B403. A three-stage impurity removal device 106 is installed in conjunction with the transmission component 307 to achieve automatic cleaning while preventing gas leakage and reducing liquid leakage. The gas delivery pipe D501 is fixedly connected to the inside of the cavity B203. The top of the outer shell E301 is fixedly connected to the drug delivery pipe 303. The first-stage impurity removal device 102 includes a condenser pipe 601, which is installed between the gas delivery pipes A and B. Three sets of feeding pipes A602 are installed below the condenser pipe 601. The outer shell G603 is fixedly connected to the bottom of the three sets of feeding pipes A602. A feeding pipe base 605 is slidably connected to the left side of the inside of the outer shell G603. Three sets of feeding tubes B604 are connected and fixedly connected inside the base 605. The radius of each of the three sets of feeding tubes B604 is smaller than the radius of each of the three sets of feeding tubes A602. The lower parts of the three sets of feeding tubes A602 correspond one-to-one with the positions of the three sets of feeding tubes B604. The tops of the three sets of feeding tubes B604 are all designed with an angled structure. A feeding tube base 605 is slidably connected inside the left side of the outer shell G603, allowing the feeding tube base 605 to slide up and down inside the outer shell G603. By connecting and fixing the three sets of feeding tubes B604 inside the feeding tube base 605, and by designing the positions of the three sets of feeding tubes B604 correspond one-to-one with the positions of the three sets of feeding tubes A602, and by designing the tops of the three sets of feeding tubes B604 with an angled structure, the feeding tubes can move up and down. When the feed tube base 605 slides up and down, it can drive the three sets of feed tubes B604 to move up and down inside the three sets of feed tubes A602. By setting the three sets of feed tubes B604 to move up and down inside the three sets of feed tubes A602, impurities inside the three sets of feed tubes A602 can be cleaned by the up and down movement of the three sets of feed tubes B604. A pressure block 608 is slidably connected to the bottom inside the outer shell G603. An electric telescopic rod 607 is installed on the right side of the pressure block 608 and passes through the inner side of the outer shell G603. A baffle C606 is slidably connected above the pressure block 608 and is fixedly connected to the inner side of the outer shell G603. A waste discharge pipe 609 is fixedly connected to and connected to the left end of the outer shell G603.A pressure block 608 is slidably connected to the bottom inner side of the outer casing G603, and an electric telescopic rod 607 is mounted on the right side of the pressure block 608. The electric telescopic rod 607 can provide power to the pressure block 608 to drive the pressure block 608 to move left and right on the bottom inner side of the outer casing G603. When the pressure block 608 moves to the left, it can push the condensed wastewater containing impurities to the outside through the discharge pipe 609 while simultaneously squeezing the feed pipe base 605 upward. When the pressure block 608 moves to the right, the feed pipe base 605 returns to its initial position. To prevent condensed wastewater containing impurities from flowing to the outside, a baffle C606 is installed on the inner side of the outer casing G603. This baffle prevents condensed wastewater containing impurities from entering the inner right end of the outer casing G603 when the pressure block 608 moves. The feed pipe base 605 is designed with a trapezoidal structure, which widens from right to left. By designing the feed pipe base 605 with a trapezoidal structure, the three sets of feed pipes B604 can make more full contact with the inner sides of the three sets of feed pipes A602, and it is easier for the pressure block 608 to move to the left.

[0021] Working principle: Gas is sequentially introduced into the primary impurity removal device 102, secondary impurity removal device 104, tertiary impurity removal device 106, and gas drying device 108 via a gas supply pipe. A cavity A202 is provided inside the outer shell A201, and a gas supply pipe B connects to the inside of cavity A202. When gas enters cavity A202, wastewater containing impurities, after condensation, adheres to the inner side of the outer shell A201 and settles at the bottom of cavity A202. A pressure plate A211 is installed above cavity B203, and a spring is installed between the telescopic rod A210 and the outer shell B208. Spring 209 causes the pressure plate A211 to move downwards under pressure when condensed wastewater containing impurities accumulates above it. The condensed wastewater then enters the cavity B203. When the pressure above the pressure plate A211 decreases, the spring 209 causes it to move upwards until it returns to its initial position. Rubber pistons are provided around the pressure plate A211 to prevent leakage of the condensed wastewater. An opening A205 is provided inside the outer shell A201 above the cavity B203, and an outer shell C212 is provided above the cavity B203 and inside the outer shell A201. The pressure plate B21 is located inside the outer shell C212. 3. As the amount of wastewater containing impurities gradually increases after condensation in cavity B203, the air pressure above cavity B203 will gradually increase. When the air pressure above cavity B203 reaches a certain level, pressure plate B213 will move upward due to the air pressure. By setting a connecting rod 214 above pressure plate B213 and a valve assembly 219 below the connecting rod 214, the platform 215 of valve assembly 219 can move upward via the connecting rod 214. When the air pressure in cavity B203 decreases, the platform 215 of valve assembly 219 will return to its initial position. By setting telescopic rods B217 on both outer sides of the platform 215 and a valve base 221 below the telescopic rods B217, the platform 215 can be fixed. The purpose of 15 is to ultimately achieve this by installing a baffle A220 below platform 215. Since baffle A220 is fixedly connected to platform 215, it will move with platform 215. An opening B218 is made on the right side of outer shell D216, allowing condensed wastewater containing impurities to be discharged to the outside when baffle A220 rises. When baffle A220 returns to its initial position, the condensed wastewater containing impurities will no longer flow into the outside. An opening C204 is made between outer shell D216 and outer shell A201, allowing condensed wastewater containing impurities in cavity B203 to flow into the interior of outer shell D216. A water pipe A304 is fixedly connected to the upper part of outer shell F401 and the lower inner side of outer shell E301.The mixture of impurities in the liquid medicine can enter the interior of the outer casing F401 from the inside of the outer casing E301. Circular baffles A405 and B403 are rotatably connected inside the outer casing F401, allowing them to rotate. A support shaft 404 is fixedly connected between the circular baffles A405 and B403, allowing the circular baffle B403 to rotate and drive the circular baffle A405 to rotate as it rotates. Large and small openings are respectively provided on the outer sides of the circular baffles A405 and B403, and an opening of the same size as the opening on the circular baffle B403 is provided on the lower left end of the outer casing F401, allowing the circular baffles... When B403 rotates to the corresponding position, the opening on the circular baffle B403 aligns with the opening of the outer shell F401, and the opening of the circular baffle A405 is completely offset from the upper interior of the outer shell F401. This reduces the loss of the medicine when the medicine containing impurities flows into the outside. When the opening of the circular baffle B403 is completely offset from the upper interior of the outer shell F401, the opening of the circular baffle A405 coincides with the upper inner side of the outer shell F401, thus preventing the medicine from flowing out and continuing to precipitate impurities. An arc-shaped outer shell A502 is provided below the circular baffle B403, and an arc-shaped outer shell B503 is slidably connected to the inner side of the arc-shaped outer shell A502. The interior of the arc-shaped outer shell B503 is connected to the gas delivery pipe D501. When the air pressure inside cavity B203 increases, the air pressure inside the arc-shaped outer shell A502 gradually pushes the arc-shaped outer shell B503 to move. When the air pressure inside cavity B203 decreases, the arc-shaped outer shell B503 gradually returns to its initial position. A feeding tube base 605 is slidably connected to the left side of the outer shell G603, allowing the feeding tube base 605 to slide up and down inside the outer shell G603. Three sets of feeding tubes B604 are connected through and fixedly connected inside the feeding tube base 605, with the positions of the three sets of feeding tubes B604 corresponding one-to-one with the positions of the three sets of feeding tubes A602. The tops of the three sets of feeding tubes B604 are all set with an angled structure, so that the feeding tube base 605 can drive the three sets of feeding tubes B604 when sliding up and down. 604 moves up and down inside the three sets of feeding pipes A602. A pressure block 608 is slidably connected to the bottom inner side of the outer shell G603, and an electric telescopic rod 607 is mounted on the right side of the pressure block 608. The electric telescopic rod 607 can provide power to the pressure block 608 to drive the pressure block 608 to move left and right inside the bottom inner side of the outer shell G603. When the pressure block 608 moves to the left, it can push the condensed wastewater containing impurities to the outside through the discharge pipe 609 while squeezing the feeding pipe base 605 upward. When the pressure block 608 moves to the right, the feeding pipe base 605 returns to the initial position and prevents the condensed wastewater containing impurities from flowing to the outside. A baffle C606 is set inside the outer shell G603.This prevents wastewater containing impurities from entering the inner right side of the outer casing G603 after condensation, when the pressure block 608 moves.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air purification device for a paper production line, comprising a primary impurity removal device, a secondary impurity removal device, a tertiary impurity removal device, and a gas drying device, characterized in that: The primary, secondary, and tertiary impurity removal devices and the gas drying device are connected via gas supply pipes. The secondary impurity removal device includes a housing A, with a gas supply pipe B fixedly connected to and attached to the inner side of the housing A. The housing A contains sequentially formed cavities A and B. A gas supply pipe C penetrates and is fixedly connected to the interior of cavity B. A pressure plate A is slidably connected to the upper part of cavity B and inside the housing A. A telescopic rod A is fixedly connected to the lower part of pressure plate A. A spring is fixedly connected to the lower part of telescopic rod A. The bottom of the spring is fixedly connected to the housing B. Four sets of support rods are fixedly connected to the side. An opening A is provided on the inner side of the outer shell A above the cavity B. An outer shell C is fixedly connected above the opening A and inside the outer shell A. A pressure plate B is slidably connected to the inner side of the outer shell C. A connecting rod is fixedly connected above the pressure plate B. The connecting rod passes through and is slidably connected above the outer shell C. A valve assembly is installed below the connecting rod. An outer shell D is installed on the outer side of the valve assembly. An opening B is provided on the right side of the outer shell D. The outer shell D is fixedly connected to the left side of the outer shell A. An opening C is provided between the outer shell D and the outer shell A.

2. The air purification device for a paper production line according to claim 1, characterized in that: The valve assembly includes a platform, which is fixedly connected to the bottom of the connecting rod. A baffle A is fixedly connected to the middle position of the bottom of the platform. Telescopic rods B are fixedly connected to the outer sides of both ends of the bottom of the platform. A valve base is slidably connected to the outer sides of both sets of telescopic rods B. A housing D is fixedly connected to the outer side of the valve base.

3. The air purification device for a paper production line according to claim 1, characterized in that: The bottom of the outer shell A is set as a sloping structure, and the sloping structure is from right to left and from high to low. The opening of the opening A is set as a conical structure, and the conical structure is from bottom to top and from wide to narrow.

4. The air purification device for a paper production line according to claim 1, characterized in that: Gas pipes A, B, C, and E are all part of a gas pipe system. Gas pipe A is installed on the left side of the primary impurity removal device. Gas pipe B is installed between the primary and secondary impurity removal devices, located on the right side of the primary device and above the secondary device. Gas pipe C is installed between the secondary and tertiary impurity removal devices, located above the secondary device and below the tertiary device. Gas pipe E is installed between the tertiary device and the gas drying device, located above the tertiary device and above the gas drying device.

5. An air purification device for a paper production line according to claim 1, characterized in that: The three-stage impurity removal device includes a housing E. An air supply pipe C is fixedly connected to the lower inner side of the housing E. A water supply pipe A is fixedly connected to the inner side of the housing E. A housing F is fixedly connected below the water supply pipe A. A water supply pipe B is fixedly connected to the upper inner side of the housing F. The water supply pipe B is fixedly connected and passes through the upper inner sides of both the housing E and the housing F. A circular baffle A is rotatably connected to the inner side of the housing F. A support shaft is fixedly connected to the center of the lower part of the circular baffle A. The outer side of the support shaft... A circular baffle B is fixedly connected to the lower part of the circular baffle A. An opening is provided on the bottom left side of the outer shell F. A large circular opening is provided on the inner side of the circular baffle A, and its diameter is equal to that of the upper inner side of the outer shell F. A small circular opening is provided on the inner side of the circular baffle B, and its diameter is equal to that of the opening at the bottom of the outer shell F. A transmission assembly is installed at the bottom of the circular baffle B. An air supply pipe D is installed on the left side of the transmission assembly. The air supply pipe D is fixedly connected to and connected to the inside of the cavity B. A drug delivery pipe is fixedly connected to and connected to the top of the outer shell E.

6. An air purification device for a paper production line according to claim 5, characterized in that: The transmission assembly includes an arc-shaped housing A, which is fixedly connected to the bottom of a circular baffle B. The internal piston of the arc-shaped housing A is slidably connected to the arc-shaped housing B, and the air supply pipe D is fixedly connected to and passes through the inner side of the arc-shaped housing B.

7. An air purification device for a paper production line according to claim 5, characterized in that: The length of the transmission component is one-quarter of the circumference of the circular baffle B.

8. An air purification device for a paper production line according to claim 1, characterized in that: The primary impurity removal device includes a condenser tube, which is installed between gas supply pipe A and gas supply pipe B. Three sets of feed pipes A are installed below the condenser tube. The three sets of feed pipes A are fixedly connected to and connected to a housing G. A feed pipe base is slidably connected to the inside left side of the housing G. Three sets of feed pipes B are fixedly connected through and inside the feed pipe base. A pressure block is slidably connected to the bottom inside the housing G. An electric telescopic rod is installed on the right side of the pressure block and passes through the inside of the housing G. A baffle C is slidably connected above the pressure block and fixedly connected to the inside of the housing G. A discharge pipe is fixedly connected to and connected to the left end of the housing G.

9. An air purification device for a paper production line according to claim 8, characterized in that: The base of the feeding tube is configured as a trapezoidal structure, which is narrower from right to left.

10. An air purification device for a paper production line according to claim 8, characterized in that: The radii of the three sets of feeding pipes B are all smaller than the radii of the three sets of feeding pipes A. The lower part of the three sets of feeding pipes A corresponds one-to-one with the position of the three sets of feeding pipes B. The top of the three sets of feeding pipes B is set as an angled structure.

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