Continuous packing type gas purification method

Abstract

The invention discloses a continuous filler type gas purification method which is characterized in that purification filler is controlled to enter a treatment space and then fall into a plurality of horizontally-spaced adsorption areas which are vertically arranged, gas to be purified is controlled to pass through the treatment space from top to bottom in the vertical direction, and the gas to be purified is purified. And transversely penetrating through each adsorption area in the treatment space to be in contact with the purification filler to realize purification, and controlling the reacted purification filler to leave the treatment space from the lower part of the adsorption area. The device has the advantages that online filling and replacement of the filler are conveniently achieved, the running resistance is reduced, and the filler purification efficiency and effect can be better improved.

Description

Technical Field

[0001] The invention relates to the technical field of industrial gas purification and treatment, and in particular to a continuous packing type gas purification method. Background Art

[0002] Industrial flue gas is the gaseous product of fuel combustion in the industrial production process of an enterprise. It usually contains a large amount of harmful substances such as solid dust and toxic gases, especially the carbon monoxide gas that has received much attention in recent years. Conventional carbon monoxide treatment equipment and other types of flue gas purification equipment all use a fixed bed filler structure. For example, CN202311805432.5 discloses a flue gas treatment device that utilizes the calorific value of carbon monoxide in sintering flue gas, and CN202021463211.6 discloses a sintering flue gas carbon monoxide and nitrogen oxide combined removal device. In these technologies, the purification fillers are all laid on a fixed filter plate, and the flue gas is controlled to be purified through the filler and the filter plate. There are defects such as low treatment efficiency and inconvenient filler replacement.

[0003] The applicant has applied for patent No. 2024213766018, "A Moving Bed Sintering Flue Gas Treatment Equipment". In this equipment, a denitrification catalytic fixed bed is arranged above the inside of the device, and a moving bed for purifying carbon monoxide is arranged below. The moving bed method is used to improve the purification efficiency of carbon monoxide and facilitate the replacement of carbon monoxide catalyst fillers. However, the equipment still has the following defects: 1. Denitrification and carbon monoxide purification are achieved simultaneously in the same equipment, and the denitrification treatment part is still in the form of a fixed bed, which still has the defect of inconvenient filler replacement. 2. Carbon monoxide purification adopts a horizontally arranged moving bed structure, but the horizontal space size of the equipment is limited, which affects the improvement of treatment efficiency. 3. In this horizontally arranged moving bed, the activity of the filler at the head and tail of the bed is quite different, but the flue gas pressure and flue gas flow rate are the same, which will lead to a decrease in the treatment effect and efficiency of the filler, and the treatment effect of some flue gas passing through the tail of the moving bed is poor.

[0004] Therefore, how to design a continuous gas purification method that can facilitate the replacement of fillers and can better improve the purification efficiency and effect has become a problem that technical personnel in this field need to consider and solve. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a continuous packing type gas purification method which is convenient for realizing packing and replacement and can better improve the packing purification efficiency and effect.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A continuous packing type gas purification method, characterized in that after the purification packing enters the processing space, it is controlled to fall into a plurality of horizontally spaced adsorption areas arranged vertically, the gas to be purified is controlled to pass through the processing space vertically from top to bottom, and pass through each adsorption area horizontally in the processing space to contact the purification packing to achieve purification, and the purification packing after the reaction is controlled to leave the processing space from below the adsorption area.

[0007] In this way, the purification filler in this method adopts a mobile adsorption treatment method, which is convenient for replacing the filler. At the same time, the scheme adopts a vertically set adsorption area, which is convenient for setting up multiple groups (at least two groups) of purification fillers for simultaneous treatment, thereby improving the treatment efficiency. At the same time, the purification filler moves from top to bottom in the adsorption area, the purification filler at the top is more active, and the purification filler at the bottom near the outlet is less active; and the gas also flows from top to bottom, so the gas pressure at the top of the adsorption area is greater and easier to pass through the purification filler horizontally, and the gas pressure at the bottom is lower (because most of the gas has already passed through the adsorption area horizontally), so less gas passes through the bottom of the adsorption area. In this way, the activity of the purification filler is exactly matched with the flow rate of the gas passing through, so the treatment effect of the filler on the gas is better improved.

[0008] Furthermore, the purification filler is controlled to first fall onto a horizontally arranged platform after entering the processing space, and then be scraped in the horizontal direction and fall into the adsorption areas arranged vertically on both sides of the platform.

[0009] In this way, the movement control of the filler is more convenient.

[0010] Furthermore, the present method is implemented by adopting a vertical flow type continuous packing gas purification equipment, which comprises an outer shell, and the inner part of the outer shell has adsorption areas arranged vertically and spaced apart in pairs horizontally, and each pair of adsorption areas is composed of four vertically arranged and horizontally spaced gas-permeable baffles sandwiched together, and an upper baffle is horizontally fixedly arranged between the upper ends of the two gas-permeable baffles in each pair of adsorption areas, and the upper ends of the adsorption areas on both sides of the upper baffle are open, and a lower baffle is horizontally fixedly arranged between the lower ends of the two gas-permeable baffles outside each pair of adsorption areas and the outer gas-permeable baffles of the outer shell or other pairs of adsorption areas, a discharging device is arranged at the outlet below each adsorption area, and a feeding device is also arranged on the upper part of the outer shell and connected with the upper opening of each adsorption area, a gas inlet is opened at the top of the outer shell and communicates with the gas-permeable space outside each pair of adsorption areas, and a gas outlet is opened at the bottom and communicates with the gas-permeable space inside each pair of adsorption areas.

[0011] In this way, when the equipment is in use, the filler enters each adsorption area from the feeding device, and the gas to be purified enters from the gas inlet on the top of the shell, then enters the gas space outside each pair of adsorption areas, and then passes horizontally through the corresponding gas baffle to enter the adsorption area and contact and react with the filler, then passes through the inner gas baffle to enter the gas space inside each pair of adsorption areas, and then flows out from the gas outlet at the bottom of the shell. In this way, the online replacement operation of the filler can be easily realized, and the filler can also be continuously loaded and processed. At the same time, the contact area between the filler and the gas is increased, and the flow direction of the filler is consistent with the direction of gas pressure reduction, so that the activity of the filler matches the gas flux, thereby better improving the treatment effect and efficiency.

[0012] Furthermore, the feeding device includes a feeding funnel located on one side of the upper portion of the outer shell, the lower end of the feeding funnel penetrates into the outer shell and is arranged opposite to one end of the feeding platform in the length direction, the feeding platform is horizontally fixed in the inner cavity of the outer shell and both sides in the width direction are located above the adsorption areas arranged in pairs, and a scraping mechanism is provided on the feeding platform for scraping the material to the adsorption areas on both sides.

[0013] In this way, a feeding platform is set above the upper partition at the upper end of each pair of adsorption areas. The filler enters the feeding platform through the funnel, and then relies on the scraping mechanism to scrape the material to the adsorption areas on both sides, completing the mobile feeding from the feeding funnel to the vertical adsorption area, ensuring the continuous processing effect of the filler.

[0014] Furthermore, a sealed feeding mechanism is provided at the outlet at the lower end of the feed funnel, and the sealed feeding mechanism includes a horizontally arranged feeding space, the upper side outside the feed space is connected to the feed funnel, and the outlet on the lower side inside is designed to face the end of the feed platform, and a feed shaft is horizontally arranged in the middle position of the feed space, and a plurality of rotating scrapers are evenly installed on the feed shaft, and the rotating scrapers are arranged along the axial direction of the feed shaft and the outer sides are close to or attached to the inner wall of the feed space, and one end of the feed shaft is transmission-connected to the feed control motor.

[0015] In this way, after the filler flows down from the feed hopper to the feed space, the feed shaft is driven to rotate by the feed control motor, and the filler is scraped down by the rotation of the rotating scraper. The feed can be controlled while ensuring the sealing effect, and the feed rate can be adjusted to avoid gas overflow from the feed device.

[0016] Furthermore, the scraper mechanism includes two circular chains horizontally arranged on both sides of the feeding platform, and the upper half of each of the two circular chains is horizontally arranged along the edge positions on both sides of the upper surface of the feeding platform. The two ends of the two circular chains are respectively installed on a pair of sprockets vertically arranged on both sides of the two ends of the feeding platform. The sprockets are connected to the scraper motor for transmission, and a plurality of vertically arranged scrapers are horizontally fixedly connected between the two circular chains. The lower surface of the scraper on the upper half of the circular chain is adjacent to the upper surface of the feeding platform (a spacing space is left between the upper cover plate and the feeding platform for the scraper on the lower side of the circular chain to move).

[0017] In this way, the scraper motor drives the sprocket and chain to circulate, and then drives the scraper to move along the feeding end of the upper surface of the feeding platform to the other end, and the filler that falls on the feeding platform is scraped to both sides and falls into the corresponding adsorption area. Therefore, the continuous transfer of fillers from the feeding device to the adsorption area can be completed conveniently and quickly, realizing the continuous processing of fillers.

[0018] Furthermore, adjacent scrapers are evenly spaced to better ensure uniform and continuous transfer of fillers.

[0019] Furthermore, any two adjacent scrapers are symmetrically arranged to be tilted in opposite directions to form an eight-shaped shape.

[0020] This makes it convenient for the two adjacent scrapers to scrape the material to different sides of the feeding platform, and the inclined scrapers can more quickly scrape the material to the side of the feeding platform. The inclined refers to an inclined (non-vertical) arrangement relative to the chain.

[0021] Furthermore, the upper end edge of the scraper on the upper surface of the feeding platform has a folded portion inclined rearward and upward, and the horizontal projection of the upper edge of the folded portion is perpendicular to the chain (the rear upward refers to the rear upward direction opposite to the forward direction).

[0022] This is because after the scrapers are arranged in an eight-shaped shape, although the area between each two adjacent scrapers is the same, since the feed has a certain width, when the filler falls off the center (that is, the filler falls on the feed platform and is not evenly distributed along the middle position), the eight-shaped scraper will increase the uneven material drop effect, that is, the material will be scraped more toward the eccentric side (because more material falls into the eight-shaped area on the eccentric side). Therefore, after the above improvement, since the upper end of the scraper is provided with a folding portion extending backward and upward to a position perpendicular to the chain, the material falling between the two adjacent scrapers falls along the rectangular area of ​​the same area, so that even if the filler falls off the feed platform eccentrically, the amount of material falling between each two adjacent scrapers is still the same. Therefore, the above structure can ensure that when the material falls off the feed platform eccentrically, the amount of material scraped off to the adsorption areas on both sides is balanced, which better ensures the stability of the overall equipment operation.

[0023] Furthermore, the lower end of the scraper on the upper surface of the feeding platform is fixed to a horizontally arranged connecting plate, the lower surface of the connecting plate and the feeding platform are arranged in contact or close to each other, and both ends of the connecting plate have a vertical connecting part and are fixed to the chain by bolts passing through the connecting part.

[0024] In this way, the scraper is fixedly connected to the chain through the connecting plate, which is convenient for installation and setting. At the same time, the connecting plate is equivalent to widening the thickness of the scraping position where the scraper contacts the feed platform, which can better prevent wear and better ensure the scraping effect.

[0025] Furthermore, it also includes a material level monitoring device, which includes a material level meter for feed monitoring and a detection bin. The detection bin is arranged below the shell at the front end of the feed platform. The upper port of the detection bin is sealed and connected to the inner cavity of the shell and communicates with the upper end of the adsorption area through a horizontal connecting space. The material level meter for feed monitoring is arranged in the detection bin.

[0026] This is because the upper port in the adsorption area needs to be equipped with a feed monitoring level meter to monitor the filling amount of the filler. After the filler in the adsorption area is detected to be full, feedback control is required to reduce the feed rate to ensure the stable and normal flow of the filler in the device. However, the adsorption area has a large gas pressure and a high temperature, and there are continuous filler drops and impacts. The harsh working environment makes the feed monitoring level meter set here often unstable and has a short service life. Therefore, the applicant creatively improved the level monitoring device, and set a detection bin connected to the adsorption area under the shell at the front end of the feeding platform, so that after the filler in the adsorption area is full, it will gradually overflow forward and fall into the detection bin. Then, through the feed monitoring level meter set in the detection bin, it can be judged whether the filler in the adsorption area is filled in place, and then feedback is given to the control center to adjust and control the feed rate of the feeding device or directly alarm. In this way, because the pressure and temperature in the detection bin are much lower than the adsorption area, and there is no need to withstand the fall and impact of fillers for a long time, the stability and reliability of the level detection can be better guaranteed, and the life of the feed monitoring level meter is extended.

[0027] Furthermore, a protrusion is formed on the outer shell at a position opposite to the front end of the feeding platform. The front ends of the feeding platform and the annular chains on both sides thereof extend and are installed in the protrusion. A funnel is arranged below the protrusion and communicates with the upper end of the detection bin.

[0028] In this way, when the connecting space between the upper port of the detection bin and the upper end of the adsorption area is blocked, the filler in the adsorption area rises and accumulates to the position of the feeding platform. At this time, the filler on the feeding platform cannot fall to the sides, but will be directly driven by the scraper to the front end and fall into the detection bin, and the level meter for feeding monitoring will detect and feedback the control signal. Therefore, the reliability of material level monitoring can be better guaranteed.

[0029] Furthermore, a detection bin outlet is provided at the lower end of the detection bin, and a detection bin discharge valve is installed at the detection bin outlet.

[0030] In this way, it is convenient to discharge the filler in the detection chamber.

[0031] Furthermore, a mounting opening is provided on the side of the detection bin, a detection flange is butt-connected to the mounting opening, and the material level meter for feed monitoring is transversely mounted on the detection flange.

[0032] This makes it easier to load and unload the level meter used for feed monitoring.

[0033] Furthermore, at least two material level meters for feeding monitoring are installed in the detection bin along the height direction.

[0034] In this way, the feedback signal of the material level meter for feeding monitoring below can be used to control the feeding device to reduce the feeding rate, and the feedback signal of the material level meter for feeding monitoring above can be used to stop the feeding device from feeding, so as to better improve the control effect and ensure the stability of the system.

[0035] Furthermore, a maintenance hole is provided at the upper end of the inspection chamber, and a hole cover is fixedly installed at the maintenance hole to achieve sealing, so as to facilitate maintenance.

[0036] Furthermore, the discharging device includes a discharging butterfly valve installed at the outlet position of the lower end of the adsorption area, and also includes a horizontal conveying equipment horizontally arranged below the lower end outlet of the adsorption area. A discharging funnel is connected to the lower front end of the horizontal conveying equipment, and a discharging bin is connected to the lower end of the discharging funnel. A discharge valve is installed at the lower end outlet of the discharging bin.

[0037] In this way, after the filler has completed the reaction in the adsorption area and lost its activity, the discharge butterfly valve is controlled to open, and the inactivated filler falls from the lower end outlet of the adsorption area to the horizontal conveying equipment below, and then is transported to the front by the horizontal conveying equipment and falls into the discharge funnel, and then further falls into the discharge bin. After the discharge bin is full, the discharge valve can be opened to release the filler. This not only realizes the smooth discharge of the inactivated filler, but also the existence of the discharge bin enables the filler in the adsorption area to be processed in batch sequence or continuously, greatly improving the flexibility of operation.

[0038] Furthermore, the horizontal conveying device is a chain plate conveyor. This has the characteristics of simple and reliable structure. Of course, other horizontal conveying devices such as belt conveyors can also be used during implementation.

[0039] Furthermore, the discharge butterfly valve includes a discharge shaft, which is horizontally arranged at the middle position of the outlet along the length direction of the lower end outlet of the adsorption area. One end of the discharge shaft passes through the outer shell and is connected to the discharge motor for transmission. Discharge raft plates are also axially installed on both sides of the discharge shaft. When the discharge raft plates rotate in the horizontal direction, they can stick to the inner wall of the lower end outlet of the adsorption area.

[0040] In this way, the discharge shaft can be rotated by the discharge motor to adjust the gap between the discharge raft and the inner wall at the lower outlet of the adsorption area, thereby achieving control of the discharge rate and closing.

[0041] Furthermore, a cut-off valve is installed at the lower end of the discharge funnel.

[0042] In this way, when opening the discharge bin to discharge materials, the isolation valve can be closed first, and the inactivated filler can be temporarily stored in the discharge funnel. After the discharge bin is discharged and the discharge valve is closed, the isolation valve can be opened. This can avoid air leakage when discharging materials from the discharge bin and better improve safety.

[0043] Furthermore, a material level meter for discharging is installed at the upper end of the discharging bin, so as to remind the discharging in time when the deactivated filler is full in the discharging bin.

[0044] In summary, the present invention has the advantages of facilitating online filling and replacement of fillers and being able to better improve the purification efficiency and effect of the fillers. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the front cross-section structure of the vertical flow type continuous filler gas purification equipment of the present invention.

[0046] Figure 2 for Figure 1 AA section view.

[0047] Figure 3 for Figure 1 BB cross-sectional view.

[0048] Figure 4 for Figure 1 Schematic diagram of the structure of the separate scraper mechanism.

[0049] Figure 5 for Figure 4 Top view of the .

[0050] Figure 6 for Figure 1 Schematic diagram of the structure of the separate material level monitoring device part.

[0051] Figure 7 It is a schematic structural diagram of the vertical flow type continuous packing gas purification equipment of the present invention when multiple groups of paired adsorption areas are arranged. DETAILED DESCRIPTION

[0052] The present invention is further described in detail below in conjunction with specific implementation modes.

[0053] Optimal embodiment: A continuous packing type gas purification method, characterized in that after the purification packing enters the processing space, it is controlled to fall into a plurality of horizontally spaced adsorption areas arranged vertically, and the gas to be purified is controlled to pass through the processing space vertically from top to bottom, and pass through each adsorption area horizontally in the processing space to contact the purification packing to achieve purification, and the purification packing after the reaction is controlled to leave the processing space from below the adsorption area.

[0054] In this way, the purification filler in this method adopts a mobile adsorption treatment method, which is convenient for replacing the filler. At the same time, the scheme adopts a vertically set adsorption area, which is convenient for setting up multiple groups (at least two groups) of purification fillers for simultaneous treatment, thereby improving the treatment efficiency. At the same time, the purification filler moves from top to bottom in the adsorption area, the purification filler at the top is more active, and the purification filler at the bottom near the outlet is less active; and the gas also flows from top to bottom, so the gas pressure at the top of the adsorption area is greater and easier to pass through the purification filler horizontally, and the gas pressure at the bottom is lower (because most of the gas has already passed through the adsorption area horizontally), so less gas passes through the bottom of the adsorption area. In this way, the activity of the purification filler is exactly matched with the flow rate of the gas passing through, so the treatment effect of the filler on the gas is better improved.

[0055] In this method, after the purified filler enters the processing space, it first falls onto a horizontally arranged platform, and then is scraped horizontally and falls into the adsorption areas vertically arranged on both sides of the platform. In this way, the movement control of the filler is more convenient.

[0056] This method uses Figure 1-6A vertical flow type continuous packing gas purification device is shown, and the vertical flow type continuous packing gas purification device includes an outer shell 1, and the inner shell 1 has adsorption areas 2 arranged vertically and spaced horizontally in pairs, each pair of adsorption areas 2 is composed of four vertically arranged and horizontally spaced gas-permeable baffles 3 sandwiched together, the gas-permeable baffles are baffles evenly distributed with gas-permeable holes for gas to pass through but fillers cannot pass through, an upper baffle 4 is horizontally fixedly arranged between the upper ends of the two gas-permeable baffles in each pair of adsorption areas 2, and the upper ends of the adsorption areas on both sides of the upper baffle 4 are open, and a lower baffle 5 is horizontally fixedly arranged between the lower ends of the two gas-permeable baffles on the outer sides of each pair of adsorption areas 2 and the outer gas-permeable baffles of the outer shell or other pairs of adsorption areas, a discharging device is arranged at the outlet below each adsorption area, and a feeding device is also arranged on the upper part of the outer shell and connected with the upper opening of each adsorption area, a gas inlet 6 is opened at the top of the outer shell and communicates with the gas-permeable space outside each pair of adsorption areas, and a gas outlet 7 is opened at the bottom and communicates with the gas-permeable space inside each pair of adsorption areas. Figure 1-6 The vertical flow type continuous packing gas purification device shown in the figure has only one pair of adsorption regions. Of course, when implementing the method, a vertical flow type continuous packing gas purification device with multiple groups of paired adsorption regions can also be used, such as Figure 7 shown.

[0057] In this way, when the equipment is in use, the filler enters each adsorption area from the feeding device, and the gas to be purified enters from the gas inlet on the top of the shell, then enters the gas space outside each pair of adsorption areas, and then passes horizontally through the corresponding gas baffle to enter the adsorption area and contact and react with the filler, then passes through the inner gas baffle to enter the gas space inside each pair of adsorption areas, and then flows out from the gas outlet at the bottom of the shell. In this way, the online replacement operation of the filler can be easily realized, and the filler can also be continuously loaded and processed. At the same time, the contact area between the filler and the gas is increased, and the flow direction of the filler is consistent with the direction of gas pressure reduction, so that the activity of the filler matches the gas flux, thereby better improving the treatment effect and efficiency.

[0058] Among them, the feeding device includes a feeding funnel 8 located on one side of the upper part of the outer shell, the lower end of the feeding funnel 8 penetrates into the outer shell and is arranged opposite to one end of the length direction of the feeding platform 9, the feeding platform 9 is horizontally fixed in the inner cavity of the outer shell and the two sides in the width direction are located above the adsorption areas 2 arranged in pairs, and a scraping mechanism is provided on the feeding platform 9 for scraping the material to the adsorption areas on both sides.

[0059] In this way, a feeding platform is set above the upper partition at the upper end of each pair of adsorption areas. The filler enters the feeding platform through the funnel, and then relies on the scraping mechanism to scrape the material to the adsorption areas on both sides, completing the mobile feeding from the feeding funnel to the vertical adsorption area, ensuring the continuous processing effect of the filler.

[0060] Among them, a sealed feeding mechanism 10 is arranged at the outlet of the lower end of the feeding funnel 8, and the sealed feeding mechanism 10 includes a horizontally arranged square feeding space, the upper side outside the feeding space is connected to the feeding funnel, and the outlet on the lower side inside is designed to face the end of the feeding platform, and a feeding shaft is horizontally arranged in the middle position of the feeding space, and a plurality of rotating scrapers are evenly installed on the feeding shaft, and the rotating scrapers are arranged along the axial direction of the feeding shaft and the outer side is close to or attached to the inner wall of the feeding space, and one end of the feeding shaft is connected to the feeding control motor.

[0061] In this way, after the filler flows down from the feed hopper to the feed space, the feed shaft is driven to rotate by the feed control motor, and the filler is scraped down by the rotation of the rotating scraper. The feed can be controlled while ensuring the sealing effect, and the feed rate can be adjusted to avoid gas overflow from the feed device.

[0062] Among them, the scraper mechanism includes two circular chains 11 horizontally arranged on both sides of the feeding platform, and the upper part of each of the two circular chains 11 is horizontally arranged along the edge positions on both sides of the upper surface of the feeding platform 9. The two ends of the two circular chains 11 are respectively installed on a pair of sprockets 12 vertically arranged on both sides of the two ends of the feeding platform. The sprockets 12 and the scraper motor 13 are connected in transmission. A plurality of vertically arranged scrapers 14 are horizontally fixedly connected between the two circular chains. The lower surface of the scraper on the upper part of the circular chain 11 is adjacent to the upper surface of the feeding platform (a spacing space is left between the upper cover plate and the feeding platform for the scraper on the lower side of the circular chain to move).

[0063] In this way, the scraper motor drives the sprocket and chain to circulate, and then drives the scraper to move along the feeding end of the upper surface of the feeding platform to the other end, and the filler that falls on the feeding platform is scraped to both sides and falls into the corresponding adsorption area. Therefore, the continuous transfer of fillers from the feeding device to the adsorption area can be completed conveniently and quickly, realizing the continuous processing of fillers.

[0064] The adjacent scrapers 14 are evenly spaced to better ensure uniform and continuous transfer of the filler.

[0065] Any two adjacent scrapers are symmetrically arranged to be tilted in opposite directions to form an eight-shaped shape.

[0066] This makes it convenient for the two adjacent scrapers to scrape the material to different sides of the feeding platform, and the inclined scrapers can more quickly scrape the material to the side of the feeding platform. The inclined refers to an inclined (non-vertical) arrangement relative to the chain.

[0067] The upper end edge of the scraper 14 on the feeding platform has a folding portion 15 inclined rearward and upward, and the horizontal projection of the upper edge of the folding portion 15 is perpendicular to the chain (the rear upward refers to the rear upward direction opposite to the forward direction).

[0068] This is because after the scrapers are arranged in an eight-shaped shape, although the area between each two adjacent scrapers is the same, since the feed has a certain width, when the filler falls off the center (that is, the filler falls on the feed platform and is not evenly distributed along the middle position), the eight-shaped scraper will increase the uneven material drop effect, that is, the material will be scraped more toward the eccentric side (because more material falls into the eight-shaped area on the eccentric side). Therefore, after the above improvement, since the upper end of the scraper is provided with a folding portion extending backward and upward to a position perpendicular to the chain, the material falling between the two adjacent scrapers falls along the rectangular area of ​​the same area, so that even if the filler falls off the feed platform eccentrically, the amount of material falling between each two adjacent scrapers is still the same. Therefore, the above structure can ensure that when the material falls off the feed platform eccentrically, the amount of material scraped off to the adsorption areas on both sides is balanced, which better ensures the stability of the overall equipment operation.

[0069] Among them, the lower end of the scraper 14 on the upper surface of the feeding platform is fixed on a horizontally arranged connecting plate 16, and the lower surface of the connecting plate 16 is arranged in contact with or close to the feeding platform. The two ends of the connecting plate 16 have a vertical connecting part and are fixed to the chain by bolts passing through the connecting part.

[0070] In this way, the scraper is fixedly connected to the chain through the connecting plate, which is convenient for installation and setting. At the same time, the connecting plate is equivalent to widening the thickness of the scraping position where the scraper contacts the feed platform, which can better prevent wear and better ensure the scraping effect.

[0071] Among them, it also includes a material level monitoring device, which includes a material level meter 18 for feeding monitoring, and also includes a detection bin 17. The detection bin 17 is arranged at a position below the shell at the front end of the feeding platform. The upper port of the detection bin 17 is sealedly connected to the inner cavity of the shell and is connected to the upper end of the adsorption area through a horizontal connecting space. The material level meter 18 for feeding monitoring is arranged in the detection bin 17.

[0072] This is because the upper port in the adsorption area needs to be equipped with a feed monitoring level meter to monitor the filling amount of the filler. After the filler in the adsorption area is detected to be full, feedback control is required to reduce the feed rate to ensure the stable and normal flow of the filler in the device. However, the adsorption area has a large gas pressure and a high temperature, and there are continuous filler drops and impacts. The harsh working environment makes the feed monitoring level meter set here often unstable and has a short service life. Therefore, the applicant creatively improved the level monitoring device, and set a detection bin connected to the adsorption area under the shell at the front end of the feeding platform, so that after the filler in the adsorption area is full, it will gradually overflow forward and fall into the detection bin. Then, through the feed monitoring level meter set in the detection bin, it can be judged whether the filler in the adsorption area is filled in place, and then feedback is given to the control center to adjust and control the feed rate of the feeding device or directly alarm. In this way, because the pressure and temperature in the detection bin are much lower than the adsorption area, and there is no need to withstand the fall and impact of fillers for a long time, the stability and reliability of the level detection can be better guaranteed, and the life of the feed monitoring level meter is extended.

[0073] Among them, a protrusion 19 is formed on the outer shell 1 at a position opposite to the front end of the feeding platform. The front ends of the feeding platform and the annular chains on both sides thereof extend and are installed in the protrusion 19. A funnel is arranged below the protrusion 19 and communicates with the upper end of the detection chamber 17.

[0074] In this way, when the connecting space between the upper port of the detection bin and the upper end of the adsorption area is blocked, the filler in the adsorption area rises and accumulates to the position of the feeding platform. At this time, the filler on the feeding platform cannot fall to the sides, but will be directly driven by the scraper to the front end and fall into the detection bin, and the level meter for feeding monitoring will detect and feedback the control signal. Therefore, the reliability of material level monitoring can be better guaranteed.

[0075] The lower end of the detection chamber 17 is provided with a detection chamber outlet, and a detection chamber discharge valve 20 is installed at the detection chamber outlet.

[0076] In this way, it is convenient to discharge the filler in the detection chamber.

[0077] The detection chamber 17 has a mounting opening on its side, a detection flange is connected to the mounting opening, and the material level meter 18 for feed monitoring is horizontally mounted on the detection flange.

[0078] This makes it easier to load and unload the level meter used for feed monitoring.

[0079] Among them, at least two material level meters for feeding monitoring are installed in the detection chamber 17 along the height direction.

[0080] In this way, the feedback signal of the material level meter for feeding monitoring below can be used to control the feeding device to reduce the feeding rate, and the feedback signal of the material level meter for feeding monitoring above can be used to stop the feeding device from feeding, so as to better improve the control effect and ensure the stability of the system.

[0081] The upper end of the inspection chamber 17 is also provided with a maintenance opening 21, and a hole cover is fixedly installed at the maintenance opening 21 to achieve sealing, so as to facilitate maintenance.

[0082] Among them, the discharging device includes a discharging butterfly valve installed at the outlet position of the lower end of the adsorption area, and also includes a horizontal conveying equipment 23 horizontally arranged below the lower end outlet of the adsorption area. A discharging funnel is connected to the lower front end of the horizontal conveying equipment 23, and a discharging bin 24 is connected to the lower end of the discharging funnel. A discharge valve 25 is installed at the lower end outlet of the discharging bin 24.

[0083] In this way, after the filler has completed the reaction in the adsorption area and lost its activity, the discharge butterfly valve is controlled to open, and the inactivated filler falls from the lower end outlet of the adsorption area to the horizontal conveying equipment below, and then is transported to the front by the horizontal conveying equipment and falls into the discharge funnel, and then further falls into the discharge bin. After the discharge bin is full, the discharge valve can be opened to release the filler. This not only realizes the smooth discharge of the inactivated filler, but also the existence of the discharge bin enables the filler in the adsorption area to be processed in batch sequence or continuously, greatly improving the flexibility of operation.

[0084] Wherein, the horizontal conveying device 23 is a chain plate conveyor. This has the characteristics of simple and reliable structure. Of course, other horizontal conveying devices such as belt conveyors can also be used during implementation.

[0085] Among them, the discharge butterfly valve includes a discharge shaft 26, which is horizontally arranged at the middle position of the outlet along the length direction of the lower end outlet of the adsorption area. One end of the discharge shaft 26 passes through the outer shell and is transmission-connected to the discharge motor 28. Discharge raft plates 27 are also axially installed on both sides of the discharge shaft. When the discharge raft plates 27 rotate in the horizontal direction, they can stick to the inner wall of the lower end outlet of the adsorption area.

[0086] In this way, the discharge shaft can be rotated by the discharge motor to adjust the gap between the discharge raft and the inner wall at the lower outlet of the adsorption area, thereby achieving control of the discharge rate and closing.

[0087] Wherein, a cut-off valve 29 is also installed at the lower end of the discharge funnel.

[0088] In this way, when opening the discharge bin to discharge materials, the isolation valve can be closed first, and the inactivated filler can be temporarily stored in the discharge funnel. After the discharge bin is discharged and the discharge valve is closed, the isolation valve can be opened. This can avoid air leakage when discharging materials from the discharge bin and better improve safety.

[0089] Among them, a material level meter 30 for discharging is also installed at the upper end position in the discharging bin 24. This is convenient to remind the discharging in time after the deactivated filler is fully stored in the discharging bin.

Claims

1. A continuous packing type gas purification method, characterized in that: After the purification filler enters the processing space, it is controlled to fall into multiple horizontally spaced adsorption areas arranged vertically, and the gas to be purified is controlled to pass through the processing space vertically from top to bottom, and pass through each adsorption area horizontally in the processing space to contact the purification filler to achieve purification, and the purification filler after the reaction is controlled to leave the processing space from below the adsorption area.

2. The continuous packing type gas purification method according to claim 1, characterized in that: After the purification filler enters the processing space, it first falls onto a horizontally arranged platform, and then is scraped horizontally and falls into the adsorption areas vertically arranged on both sides of the platform.

3. The continuous packing type gas purification method according to claim 1, characterized in that: The method is implemented by using a vertical flow type continuous packing gas purification device, the vertical flow type continuous packing gas purification device comprises an outer shell, the inner part of the outer shell has adsorption areas which are arranged vertically and spaced apart horizontally in pairs, each pair of adsorption areas is composed of four vertically arranged and horizontally spaced gas-permeable baffles, an upper baffle is fixedly arranged horizontally between the upper ends of the two gas-permeable baffles in each pair of adsorption areas, the upper ends of the adsorption areas on both sides of the upper baffle are open, a lower baffle is fixedly arranged horizontally between the lower ends of the two gas-permeable baffles outside each pair of adsorption areas and the outer gas-permeable baffles of the outer shell or other pairs of adsorption areas, a discharge device is arranged at the outlet below each adsorption area, a feeding device is also arranged on the upper part of the outer shell and is connected with the upper opening of each adsorption area, a gas inlet is arranged at the top of the outer shell and is communicated with the gas-permeable space outside each pair of adsorption areas, and a gas outlet is arranged at the bottom of the outer shell and is communicated with the gas-permeable space inside each pair of adsorption areas.

4. The continuous packing type gas purification method according to claim 3, characterized in that: The feeding device includes a feeding funnel located on one side of the upper part of the shell, the lower end of the feeding funnel penetrates into the shell and is arranged opposite to one end of the feeding platform in the length direction, the feeding platform is horizontally fixed in the inner cavity of the shell and both sides in the width direction are located above the adsorption areas arranged in pairs, and a scraping mechanism is arranged on the feeding platform for scraping the material to the adsorption areas on both sides.

5. The continuous packing type gas purification method according to claim 4, characterized in that: A sealed feeding mechanism is arranged at the outlet at the lower end of the feed funnel, and the sealed feeding mechanism includes a horizontally arranged feeding space. The upper side outside the feed space is connected to the feed funnel, and the outlet on the lower side inside is designed to face the end of the feed platform. A feed shaft is horizontally arranged in the middle position of the feed space, and a plurality of rotating scrapers are evenly installed on the feed shaft. The rotating scrapers are arranged along the axial direction of the feed shaft and the outer sides are close to or attached to the inner wall of the feed space. One end of the feed shaft is transmission-connected to the feed control motor.

6. The continuous packing type gas purification method according to claim 4, characterized in that: The scraper mechanism includes two circular chains horizontally arranged on both sides of the feeding platform, and the upper part of each of the two circular chains is horizontally arranged along the edge positions on both sides of the upper surface of the feeding platform. The two ends of the two circular chains are respectively installed on a pair of sprockets vertically arranged on both sides of the two ends of the feeding platform. The sprockets are connected to the scraper motor in a transmission connection, and a plurality of vertically arranged scrapers are horizontally fixedly connected between the two circular chains. The lower surface of the scraper on the upper part of the circular chain is adjacent to the upper surface of the feeding platform.

7. The continuous packing type gas purification method according to claim 6, characterized in that: Adjacent scrapers are equally spaced; Any two adjacent scrapers are arranged symmetrically in an eight-shaped pattern in opposite directions; The upper end edge of the scraper on the upper surface of the feeding platform has a folded portion inclined backward and upward, and the horizontal projection of the upper side edge of the folded portion is perpendicular to the chain; The lower end of the scraper on the upper surface of the feeding platform is fixed on a horizontally arranged connecting plate. The lower surface of the connecting plate is arranged close to or in contact with the feeding platform. Both ends of the connecting plate have a vertical connecting part and are fixed to the chain by bolts passing through the connecting part.

8. The continuous packing type gas purification method according to claim 4, characterized in that: It also includes a material level monitoring device, which includes a material level meter for feed monitoring and a detection bin. The detection bin is arranged below the outer shell at the front end of the feed platform. The upper port of the detection bin is sealed and connected to the inner cavity of the outer shell and communicates with the upper end of the adsorption area through a horizontal connecting space. The material level meter for feed monitoring is arranged in the detection bin.

9. The continuous packing type gas purification method according to claim 8, characterized in that: A protrusion is formed on the outer shell at a position facing the front end of the feeding platform. The feeding platform and the front ends of the ring chains on both sides thereof are extended and installed in the protrusion. A funnel is arranged below the protrusion and communicates with the upper end of the detection bin. The lower end of the detection bin is provided with a detection bin outlet, and a detection bin discharge valve is installed at the detection bin outlet; The detection bin is provided with an installation opening on the side thereof, a detection flange is provided at the installation opening, and the material level meter for feed monitoring is transversely installed on the detection flange; At least two material level meters for feeding monitoring are installed in the detection bin along the height direction; A maintenance hole is also provided at the upper end of the detection chamber, and a hole cover is fixedly installed at the maintenance hole to achieve sealing.

10. The continuous packing type gas purification method according to claim 4, characterized in that: The discharging device includes a discharging butterfly valve installed at the outlet position of the lower end of the adsorption area, and also includes a horizontal conveying device horizontally arranged below the outlet of the lower end of the adsorption area, a discharging funnel is connected to the lower front end of the horizontal conveying device, a discharging bin is connected to the lower end of the discharging funnel, and a discharge valve is installed at the outlet of the lower end of the discharging bin; The horizontal conveying equipment is a chain plate conveyor; The discharging butterfly valve comprises a discharging shaft, which is horizontally arranged at the middle position of the outlet along the length direction of the outlet at the lower end of the adsorption area, one end of the discharging shaft passes through the housing and is transmission-connected to the discharging motor, and discharging raft plates are also axially installed on both sides of the discharging shaft, and the discharging raft plates can be attached to the inner wall of the outlet at the lower end of the adsorption area when rotating in the horizontal direction; A cut-off valve is also installed at the lower end of the discharge hopper; A material level meter for discharging is also installed at the upper end of the discharging bin.

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