An activated carbon circulation adsorption and desorption device for waste gas treatment

Abstract

The present invention discloses an activated carbon circulating adsorption and desorption device for waste gas treatment, which belongs to the technical field of waste gas treatment, and comprises a cylinder, a top plate fixedly mounted at one end of the cylinder, and a bottom plate coaxially mounted at the other end of the cylinder. A plurality of activated carbon tubes for accommodating activated carbon are installed in the desorption chamber, and the activated carbon tubes are evenly distributed on a concentric circle centered on the axis of the cylinder. Carbon tube holes are provided on the surface of the activated carbon tubes, and a carbon tube hole sealing mechanism is also provided on the outer side of the activated carbon tubes. A desorption gas port connected to the desorption chamber is provided on the cylinder, and the top plate and the activated carbon tube are relatively fixed. An air inlet connected to the upper end of the activated carbon tube is provided on the top plate, and a plurality of adsorption gas ports are provided on the bottom plate. The adsorption gas ports correspond to the activated carbon tubes one by one, and by rotating the bottom plate, the adsorption gas ports can be driven to rotate so as to align or stagger with the lower end of the corresponding activated carbon tube. The adsorption and desorption efficiency of the present invention is higher, the device structure is compact, and it is more convenient to use.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to an activated carbon circulating adsorption and desorption device for waste gas treatment. Background Art

[0002] Activated carbon adsorption is a purification method that utilizes the physical adsorption, chemical adsorption, oxidation, catalytic oxidation and reduction properties of activated carbon to remove pollutants from water or gas. Among them, an adsorption device with activated carbon is an excellent device for treating industrial waste gas. The prior art has developed many devices that can adsorb waste gas, such as an activated carbon circulating adsorption and desorption device for waste gas treatment disclosed in the announcement number CN117298805B. The device is provided with a plurality of receiving frames for receiving activated carbon. After the waste gas is adsorbed in the adsorption box, the receiving frame is degassed in the desorption box by pulling out the receiving frame to ensure the adsorption effect of the device. However, the above-mentioned device needs to occupy a large degassing space when an additional desorption box is set. There are also problems such as a relatively complex device structure, a relatively troublesome transfer and cleaning process for the receiving frame, and the waste gas is easily communicated between the adsorption box and the desorption box. Summary of the invention

[0003] In view of this, the object of the present invention is to provide an activated carbon circulating adsorption and desorption device for waste gas treatment, which has higher adsorption and desorption efficiency, compact structure and is more convenient to use.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention discloses an activated carbon circulating adsorption and desorption device for waste gas treatment, comprising a cylinder, a top plate fixedly mounted at one end of the cylinder, and a bottom plate coaxially mounted at the other end of the cylinder, wherein the top plate and the bottom plate divide the cylinder into a desorption chamber, wherein a plurality of activated carbon tubes for accommodating activated carbon are installed in the desorption chamber, wherein the activated carbon tubes are evenly distributed on a concentric circle centered on the axis of the cylinder, carbon tube holes are provided on the surfaces of the activated carbon tubes, and a carbon tube hole sealing mechanism is also provided on the outer sides of the activated carbon tubes, a desorption gas port connected to the desorption chamber is provided on the cylinder, the top plate is relatively fixed to the activated carbon tube, an air inlet connected to the upper end of the activated carbon tube is provided on the top plate, and a plurality of adsorption gas ports are provided on the bottom plate, wherein the adsorption gas ports correspond to the activated carbon tubes one by one, and by rotating the bottom plate, the adsorption gas ports can be driven to rotate so as to be aligned with or staggered with the lower ends of the corresponding activated carbon tubes.

[0006] Furthermore, the bottom plate rotation seal is installed on the inner side of the lower part of the cylinder, and a revolution driving component is installed at the lower part of the cylinder. The output end of the revolution driving component is connected to the bottom plate, and the bottom plate is driven to rotate by the revolution driving component.

[0007] Furthermore, a plurality of groups of activated carbon packages and elastic sponge support packages are arranged on the inner side of the activated carbon tube, and the activated carbon packages and elastic sponge support packages are arranged alternately and spaced in the activated carbon tube along the axial direction of the activated carbon tube, and the elastic sponge support package is used to elastically support two adjacent groups of activated carbon packages.

[0008] Furthermore, a filter plate is installed on the inner upper part of the activated carbon bag, and a pressure sensor is installed on the filter plate. The pressure sensor passes through the opening at the upper end of the activated carbon tube and is connected to the top plate. The pressure sensor is connected to a controller, and the controller is electrically connected to the carbon tube hole sealing mechanism and the revolution driving component.

[0009] Furthermore, the carbon tube hole sealing mechanism includes an outer closed tube and a rotation driving component that drives the outer closed tube to rotate around its own axis. The outer closed tube is coaxially installed on the outside of the activated carbon tube. The outer diameter of the activated carbon tube is adapted to the inner diameter of the outer closed tube. The outer closed tube is provided with closed holes, and the closed holes correspond one-to-one with the carbon tube holes.

[0010] Furthermore, a base is fixed on the upper side of the bottom plate, a column is rotatably mounted on the base, a scraper is mounted on the column, the scraper contacts the outer closed tube and extends along the axial direction of the outer closed tube, and a torsion reset mechanism is provided between the base and the column.

[0011] Furthermore, an upper sealing ring plate and a lower sealing ring plate are fixed at intervals on the inner side of the lower portion of the cylinder, and the bottom plate is rotatably disposed in the interval formed by the upper sealing ring plate and the lower sealing ring plate.

[0012] Furthermore, an air collecting cavity is formed on the inner side of the top plate, and the air inlet is opened on the upper side of the top plate.

[0013] Furthermore, the cylinder is rotatably mounted on a frame, and a deflection control mechanism for driving the cylinder to deflect is also mounted on the frame.

[0014] The beneficial effects of the present invention are:

[0015] The present invention discloses an activated carbon circulating adsorption and desorption device for waste gas treatment, which can simultaneously realize the adsorption and desorption of waste gas through a cylinder, and can adsorb or desorb the filtering part as a whole, so that the use efficiency of the whole device is higher, the device structure is compact, and it is more convenient to use.

[0016] When the device of the present invention is adsorbing, the carbon tube hole is closed by the carbon tube hole closing mechanism, and the waste gas entering the air inlet can be filtered through the activated carbon tube and then discharged through the adsorption air port. When desorbing, the carbon tube hole is opened, the adsorption air port is closed through the bottom plate, and then the clean gas is discharged from the air inlet. The positive pressure of the clean gas can discharge the waste gas in the activated carbon tube, which plays a role in desorption. The desorbed gas can be discharged from the desorption air port, reducing the impact on the activated carbon tube.

[0017] In the circulating adsorption and desorption device of the present invention, when desorbing gas, since the carbon tube holes are arranged along the axial direction of the entire activated carbon tube, the gas will not pass through the layers of activated carbon packages in sequence along the axial direction when discharged, but will only be discharged along the radial direction. Therefore, it will be subject to a lower desorption pressure, making the desorption and discharge process of the exhaust gas smoother, more efficient, and with less residue.

[0018] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0020] Figure 1 It is a schematic structural diagram of the cyclic adsorption and desorption device of the present invention;

[0021] Figure 2 A top view of the cyclic adsorption and desorption device of the present invention;

[0022] Figure 3 It is a cross-sectional view of the cyclic adsorption and desorption device of the present invention;

[0023] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0024] Figure 5 Schematic diagram of the layout of activated carbon tubes Figure 1 ;

[0025] Figure 6 Schematic diagram of the layout of activated carbon tubes Figure 2 ;

[0026] Figure 7 It is a schematic diagram of the structure of the scraper.

[0027] The markings in the accompanying drawings are as follows: cylinder 1, top plate 2, bottom plate 3, desorption chamber 4, activated carbon tube 5, carbon tube hole 6, desorption air port 7, air inlet 8, adsorption air port 9, revolution drive component 10, activated carbon bag 11, elastic sponge support bag 12, filter pressure plate 13, outer closed tube 14, rotation drive component 15, closed hole 16, base 17, column 18, scraper 19, torsion reset mechanism 20, upper sealing plate 21, lower sealing plate 22, gas collecting chamber 23, frame 24, deflection control mechanism 25, pressure sensor 26. DETAILED DESCRIPTION

[0028] like Figures 1 to 7 As shown, the present invention discloses an activated carbon circulating adsorption and desorption device for waste gas treatment, comprising a cylinder 1, a top plate 2 fixedly mounted at one end of the cylinder 1, and a bottom plate 3 coaxially rotatably mounted at the other end of the cylinder 1. The cylinder 1 is a cylindrical structure, and can also be a square cylinder as needed. The top plate 2 is fixed at the upper end of the cylinder 1, and the bottom plate 3 can rotate around the axis of the cylinder 1. Theoretically, the top plate 2 and the bottom plate 3 can simultaneously seal both ends of the cylinder 1 to prevent leakage of waste gas during the treatment process.

[0029] Among them, the top plate 2 and the bottom plate 3 divide the cylinder 1 into a middle desorption chamber 4, and a plurality of activated carbon tubes 5 for accommodating activated carbon are installed in the desorption chamber 4. The upper end of the activated carbon tube 5 is open, and the inner side of the activated carbon tube 5 contains activated carbon for adsorbing exhaust gas. The axis of the activated carbon tube 5 is perpendicular to the top plate 2 and the bottom plate 3, that is, the activated carbon tube 5 is vertically arranged between the top plate 2 and the bottom plate 3.

[0030] The activated carbon tubes 5 are evenly distributed on a concentric circle with the axis of the cylinder 1 as the center. The diameter of the activated carbon tubes 5 should not be too large, so that there is a certain interval between two adjacent activated carbon tubes 5. Carbon tube holes 6 are opened on the surface of the activated carbon tubes 5. The carbon tube holes 6 are evenly distributed on the outer surface of the activated carbon tubes 5, and the carbon tube holes 6 extend along the radial direction of the activated carbon tubes 5. A carbon tube hole 6 closing mechanism is also provided on the outside of the activated carbon tubes 5. A desorption gas port 7 connected to the desorption chamber 4 is opened on the cylinder 1. The top plate 2 and the activated carbon tubes 5 are relatively fixed. An air inlet 8 connected to the upper end of the activated carbon tubes 5 is opened on the top plate 2, and the exhaust gas or clean gas enters through the air inlet 8. A plurality of adsorption gas ports 9 are opened on the bottom plate 3. The adsorption gas ports 9 correspond to the activated carbon tubes 5 one by one. By rotating the bottom plate 3, the adsorption gas ports 9 can be driven to rotate so that they are aligned with or staggered with the lower end of the corresponding activated carbon tube 5. The use process of the device of the present invention is as follows:

[0031] Adsorption stage: when the exhaust gas is adsorbed, the exhaust gas enters from the air inlet 8. At this time, the carbon tube hole 6 is closed by the carbon tube hole 6 closing mechanism, and the exhaust gas does not enter the desorption chamber 4. At this time, the exhaust gas entering from the air inlet 8 enters the upper end of the activated carbon tube 5, and then is filtered through the activated carbon tube 5, and is discharged through the adsorption air port 9 at the lower end of the activated carbon tube 5.

[0032] Desorption stage: When desorption is performed, the carbon tube hole 6 of the activated carbon tube 5 is opened, the bottom plate 3 is rotated, and the adsorption gas port 9 is closed through the bottom plate 3, and the gas will not be discharged from the adsorption gas port 9. Clean gas is discharged into the upper end of the activated carbon tube 5 through the air inlet 8, and the positive pressure of the clean gas can discharge the waste gas in the activated carbon tube 5 from the carbon tube hole 6, which plays a role in desorption. The desorbed gas can be discharged from the desorption gas port 7, reducing the impact on the activated carbon tube 5, thereby facilitating the reuse of the activated carbon.

[0033] In some other embodiments, a heating tube can be provided on the outside of the cylinder 1. During the desorption stage, the heating tube can be started to heat the inside of the cylinder 1, which can not only exhaust the air but also dehumidify the air, thereby increasing the reuse effect of the activated carbon.

[0034] In the embodiment of the present invention, the carbon tube hole 6 is a tapered hole with a small inside and a large outside. When the inner side of the activated carbon tube 5 is cleaned and exhausted, impurities and exhaust gas can be forced out from the inside to the outside, which is more conducive to the discharge of the above-mentioned impurities and reduces the blockage of the carbon tube hole 6.

[0035] In some other embodiments, the distribution of the activated carbon tubes 5 may also be non-uniform, but when the bottom plate 3 rotates, the rotation angle of the revolution drive component 10 can be preset so that the adsorption gas port 9 rotates to correspond to the activated carbon tubes 5. The uniform distribution is not only more beautiful, but also convenient for maintenance.

[0036] In this embodiment, the bottom plate 3 is rotationally sealed and installed on the inner side of the lower part of the cylinder 1. The lower part of the cylinder 1 is installed with a revolution driving component 10. The output end of the revolution driving component 10 is connected to the bottom plate 3, and the bottom plate 3 is driven to rotate by the revolution driving component 10. The revolution driving component 10 of this embodiment includes a first motor, a first gear, a second gear and a ring gear. The outer edge of the bottom plate 3 is fixed with a ring gear, the ring gear is meshed with the second gear rotating on the cylinder 1, the second gear is meshed with the first gear, and the first gear is connected to the output end of the first motor. By installing the first motor, the revolution driving component 10 can be easily controlled.

[0037] In some other embodiments, the center of the bottom plate 3 can be directly connected to the speed-changing drive mechanism, which is fixed inside the cylinder 1. However, this method will undoubtedly reduce the bottom space of the cylinder 1 and is inconvenient for maintenance.

[0038] In this embodiment, multiple groups of activated carbon bags 11 and elastic sponge support bags 12 are arranged inside the activated carbon tube 5, and the activated carbon bags 11 and the elastic sponge support bags 12 are arranged alternately and spaced along the axial direction of the activated carbon tube 5. The elastic sponge support bags 12 are used to elastically support two adjacent groups of activated carbon bags 11, which can make the overall structure more compact and ensure the adsorption effect. Of course, the elastic sponge support bags 12 themselves also have a certain adsorption effect, and can also enhance the adsorption of waste gas by the activated carbon tube 5. By setting a multi-layer structure, the multiple layers can also work together, and the adsorbed impurities can be reduced from accumulating in the bottom layer while disrupting the sparseness of the adsorption material.

[0039] In this embodiment, a filter platen 13 is installed on the inner upper part of the activated carbon bag 11, and a filter hole for the exhaust gas to pass through is opened on the filter platen 13. A pressure sensor 26 is installed on the filter platen 13. The pressure sensor 26 passes through the opening at the upper end of the activated carbon tube 5 and is connected to the top plate 2. The pressure sensor 26 is connected to the controller, and the controller is electrically connected to the carbon tube hole 6 closing mechanism and the revolution driving component 10. In specific operation, when there are too many impurities in the activated carbon tube 5, the impurities can expand the activated carbon bag 11 and the elastic sponge support bag 12, thereby applying pressure to the pressure sensor 26. When the pressure reaches the threshold, the pressure sensor 26 transmits a signal to the carbon tube hole 6 closing mechanism and the revolution driving component 10, driving the above mechanism to work, and at the same time allowing the air inlet 8 to discharge clean gas to the upper end of the activated carbon tube 5, thereby starting the desorption work.

[0040] In this embodiment, the activated carbon tube 5 and the outer closed tube 14 are both circular, which can be easily rotated. The carbon tube hole 6 sealing mechanism includes an outer closed tube 14, a self-rotation driving component 15 that drives the outer closed tube 14 to rotate around its own axis, and the outer closed tube 14 is coaxially installed on the outside of the activated carbon tube 5. The outer diameter of the activated carbon tube 5 is adapted to the inner diameter of the outer closed tube 14. The outer closed tube 14 is provided with a closed hole 16, which corresponds to the carbon tube hole 6 one by one. When the closed hole and the carbon tube hole 6 are staggered, the carbon tube hole 6 can be tightly sealed.

[0041] In some other embodiments, the activated carbon tube 5 may also be square, and the outer closed tube 14 may be installed on the outside of the activated carbon tube 5 in an axially movable manner. In this embodiment, the carbon tube holes 6 on the activated carbon tube 5 are closed in a rotating manner to make the device more compact.

[0042] In this embodiment, a base 17 is fixed on the upper side of the bottom plate 3, a column 18 is rotatably mounted on the base 17, a scraper 19 is mounted on the column 18, the scraper 19 contacts the outer closed tube 14 and extends along the axial direction of the outer closed tube 14, and a torsion reset mechanism 20 is provided between the base 17 and the column 18. The scraper 19 can facilitate the scraping of impurities on the outer side of the outer closed tube 14 to prevent the carbon tube hole 6 from being blocked.

[0043] In this embodiment, an upper sealing ring plate and a lower sealing ring plate are fixed at intervals on the inner side of the lower portion of the cylinder 1, and the bottom plate 3 is rotatably disposed in the interval formed by the upper sealing ring plate and the lower sealing ring plate.

[0044] In this embodiment, a gas collecting cavity 23 is formed on the inner side of the top plate 2 , and the air inlet 8 is opened on the upper side of the top plate 2 .

[0045] In this embodiment, the cylinder 1 is rotatably mounted on a frame 24 , and a deflection control mechanism for driving the cylinder 1 to deflect is also mounted on the frame 24 .

[0046] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An activated carbon circulating adsorption and desorption device for waste gas treatment, characterized in that: The invention comprises a cylinder, a top plate fixedly mounted at one end of the cylinder, and a bottom plate coaxially mounted at the other end of the cylinder, wherein the top plate and the bottom plate divide the cylinder into a desorption chamber, wherein a plurality of activated carbon tubes for accommodating activated carbon are installed in the desorption chamber, wherein the activated carbon tubes are evenly distributed on a concentric circle centered on the axis of the cylinder, wherein carbon tube holes are opened on the surface of the activated carbon tubes, and a carbon tube hole sealing mechanism is also arranged on the outer side of the activated carbon tubes, wherein a desorption gas port communicating with the desorption chamber is opened on the cylinder, and the top plate is relatively close to the activated carbon tubes. The top plate is fixed, an air inlet connected to the upper end of the activated carbon tube is opened, and a plurality of adsorption air ports are opened on the bottom plate, and the adsorption air ports correspond to the activated carbon tubes one by one. By rotating the bottom plate, the adsorption air ports can be driven to rotate so as to be aligned with or staggered with the lower end of the corresponding activated carbon tube; the carbon tube hole sealing mechanism includes an outer sealing tube and a rotation driving component for driving the outer sealing tube to rotate around its own axis, the outer sealing tube is coaxially installed on the outside of the activated carbon tube, the outer diameter of the activated carbon tube is adapted to the inner diameter of the outer sealing tube, and the outer The closed tube is provided with closed holes, which correspond to the carbon tube holes one by one; a base is fixed on the upper side of the bottom plate, a column is rotatably mounted on the base, a scraper is mounted on the column, the scraper contacts the outer closed tube and extends along the axial direction of the outer closed tube, and a torsion reset mechanism is arranged between the base and the column; adsorption stage: when the exhaust gas is adsorbed, the exhaust gas enters from the air inlet, and the carbon tube hole is closed by the carbon tube hole closing mechanism, and the exhaust gas will not enter the desorption chamber. At this time, the exhaust gas entering the air inlet enters the activated carbon tube The upper end of the activated carbon tube, and then filtered through the activated carbon tube, and discharged through the adsorption gas port at the lower end of the activated carbon tube; desorption stage: during desorption, the carbon tube hole of the activated carbon tube is opened, the bottom plate is rotated, the adsorption gas port is closed through the bottom plate, and the gas will not be discharged from the adsorption gas port. Clean gas is discharged into the upper end of the activated carbon tube through the air inlet. The positive pressure of the clean gas can discharge the exhaust gas in the activated carbon tube from the carbon tube hole, thereby playing a desorption role. The desorbed gas can be discharged from the desorption gas port, reducing the impact on the activated carbon tube, thereby facilitating the reuse of activated carbon.

2. The activated carbon circulating adsorption and desorption device for waste gas treatment according to claim 1 is characterized in that: The bottom plate rotation seal is installed on the inner side of the lower part of the cylinder. A revolution driving component is installed at the lower part of the cylinder. The output end of the revolution driving component is connected to the bottom plate. The bottom plate is driven to rotate by the revolution driving component.

3. The activated carbon circulating adsorption and desorption device for waste gas treatment according to claim 2 is characterized in that: A plurality of groups of activated carbon bags and elastic sponge support bags are arranged on the inner side of the activated carbon tube. The activated carbon bags and elastic sponge support bags are arranged alternately and spaced in the activated carbon tube along the axial direction of the activated carbon tube. The elastic sponge support bag is used to elastically support two adjacent groups of activated carbon bags.

4. The activated carbon circulating adsorption and desorption device for waste gas treatment according to claim 3 is characterized in that: A filter platen is installed on the inner upper part of the activated carbon bag, and a pressure sensor is installed on the filter platen. The pressure sensor passes through the opening at the upper end of the activated carbon tube and is connected to the top plate. The pressure sensor is connected to a controller, and the controller is electrically connected to the carbon tube hole sealing mechanism and the revolution driving component.

5. The activated carbon circulating adsorption and desorption device for waste gas treatment according to claim 1 is characterized in that: An upper sealing ring plate and a lower sealing ring plate are fixed at intervals on the inner side of the lower portion of the cylinder, and the bottom plate is rotatably arranged in the interval formed by the upper sealing ring plate and the lower sealing ring plate.

6. The activated carbon circulating adsorption and desorption device for waste gas treatment according to claim 1 is characterized in that: An air collecting cavity is formed on the inner side of the top plate, and the air inlet is opened on the upper side of the top plate.

7. The activated carbon circulating adsorption and desorption device for waste gas treatment according to claim 1 is characterized in that: The cylinder is rotatably mounted on a frame, and a deflection control mechanism for driving the cylinder to deflect is also mounted on the frame.

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