An exhaust gas adsorption canister

Abstract

The application discloses a waste gas adsorption tank, and relates to the technical field of waste gas purification, which comprises a tank body, a frame body, an air inlet pipe, an air outlet pipe and a filler. The tank body is internally provided with a cavity, and the frame body divides the cavity into an adsorption space and a slag collecting space. A plurality of feeding openings, a plurality of discharging openings and a plurality of slag discharging openings are formed in the tank body. One end of the air inlet pipe is communicated with the slag collecting space, and one end of the air outlet pipe is communicated with the adsorption space. The filler comprises a granular carbon layer. A plurality of turnover devices are further arranged, and each turnover device comprises a plurality of rotating members, a plurality of turnover members and a plurality of driving members. The rotating members are rotationally connected with the tank body, and the driving members drive the rotating members to rotate. The application can fully utilize the granular carbon, thereby improving the purification effect of the adsorption tank on waste gas. Meanwhile, the waste gas can flow smoothly through the granular carbon, thereby improving the purification efficiency of the adsorption tank on waste gas.

Description

Technical Field

[0001] This application relates to the technical field of waste gas purification, and in particular to a waste gas adsorption tank. Background Technology

[0002] Waste gas purification mainly refers to the treatment of industrial waste gases generated in industrial sites, such as particulate matter, flue gas, odorous gases, and toxic and harmful gases. Common waste gas purification methods include factory flue gas purification, workshop dust gas purification, organic waste gas purification, odor removal, acid and alkali waste gas purification, and chemical waste gas purification.

[0003] Volatile organic compounds (VOCs) are a type of chemical waste gas, generally classified into several categories such as non-methane hydrocarbons, oxygenated organic compounds, halogenated hydrocarbons, nitrogen-containing organic compounds, and sulfur-containing organic compounds. VOCs participate in the formation of ozone and secondary aerosols in the atmosphere, significantly impacting regional ozone pollution and PM2.5 pollution. Most VOCs have unpleasant odors and possess toxic, irritating, teratogenic, and carcinogenic effects; benzene, toluene, and formaldehyde, in particular, can cause significant harm to human health. VOCs are important precursors to urban haze and photochemical smog, primarily originating from coal chemical, petrochemical, fuel and coating manufacturing, and solvent manufacturing and use processes.

[0004] Currently, adsorption tanks are commonly used to reduce the VOC content in chemical waste gas. After the waste gas comes into contact with the granular carbon in the adsorption tank, the VOCs can be adsorbed by the granular carbon, thereby achieving the purpose of reducing the VOC content in the waste gas.

[0005] However, during long-term use of the adsorption tank, the granular carbon that comes into contact with the waste gas first has a higher frequency of contact with the waste gas, so it adsorbs more VOCs, which makes it difficult for the other granular carbon particles behind it to be fully utilized. Furthermore, after the granular carbon adsorbs a large amount of VOCs, its VOCs adsorption capacity decreases, and the substances formed by VOCs on the surface of the granular carbon can easily clog the gaps between the granular carbon particles, affecting the smooth passage of waste gas, thereby affecting the purification efficiency and effect of the adsorption tank on the waste gas. Summary of the Invention

[0006] This application provides a waste gas adsorption tank that enables full utilization of granular carbon, thereby improving the purification effect of the adsorption tank on waste gas; at the same time, it enables the waste gas to flow smoothly when passing through the granular carbon, thereby improving the purification efficiency of the adsorption tank on waste gas.

[0007] This application provides a waste gas adsorption tank, which adopts the following technical solution:

[0008] A waste gas adsorption tank includes a tank body, a frame, an inlet pipe, an outlet pipe, and a filler. The tank body has an internal cavity, and the frame is disposed within the cavity, dividing the cavity into an interconnected adsorption space and a slag collection space, with the adsorption space located above the slag collection space. The tank body has several feeding ports, several discharging ports, and several slag discharge ports, all of which are controllable in opening and closing. The feeding ports and discharging ports communicate with the adsorption space, and the slag discharge ports communicate with the slag collection space. The inlet pipe and the outlet pipe are both disposed on the tank body and located at opposite ends of the tank body. One end of the inlet pipe communicates with the slag collection space, and one end of the outlet pipe communicates with the adsorption space. The filler, comprising a granular carbon layer, is located within the adsorption space and is situated above the frame.

[0009] It also includes several turning devices, which are disposed in the adsorption space; the turning device includes several rotating parts, several turning parts and several driving parts, the rotating parts are rotatably connected to the tank body, and the driving parts drive the rotating parts to rotate; several turning parts are disposed on the rotating parts, and the rotation of the rotating parts drives the several turning parts to move and turn the particulate carbon layer.

[0010] By adopting the above technical solution, the waste gas enters the slag collection space through the inlet pipe, then passes through the frame into the adsorption space, and passes through the granular carbon layer before finally leaving through the outlet pipe. During the process of the waste gas passing through the granular carbon layer, the granular carbon can adsorb VOCs, thereby reducing the VOCs content in the waste gas and achieving the effect of purifying the waste gas. When adding filler to the adsorption space or when the waste gas adsorption tank stops purifying the waste gas, the turning device is activated. The drive component drives the rotating component to rotate, which in turn drives several turning components to turn the granular carbon layer. This not only makes the granular carbon distributed more evenly in the adsorption space after feeding, thereby improving the adsorption capacity of the granular carbon layer for VOCs, but also allows granular carbon with more adsorbed VOCs to exchange positions with granular carbon with less adsorbed VOCs, thereby making full use of the granular carbon and improving the purification effect of the adsorption tank on the waste gas. At the same time, it makes the waste gas flow smoothly when passing through the granular carbon, thereby improving the purification efficiency of the adsorption tank on the waste gas.

[0011] Optionally, a cleaning device is also included, which includes an air blowing component and an air suction component, which are located in the adsorption space and the slag collection space, respectively.

[0012] By adopting the above technical solution, when the waste gas adsorption tank stops purifying waste gas, the cleaning device is activated. The blowing and suction components work together to form an airflow in the cavity. The airflow can drive the carbon residue formed during the use of the granular carbon layer to fall off and be collected in the residue collection space, so that the granular carbon layer can continue to adsorb VOCs in the future, and the purification effect and efficiency of the waste gas adsorption tank for waste gas can remain stable.

[0013] Optionally, the agitator has grooves for carrying particulate carbon.

[0014] By adopting the above technical solution, during the process of the turning component turning the granular carbon layer, some granular carbon enters the groove and the turning component can carry it along with it, thereby improving the turning effect and efficiency of the turning device on the granular carbon layer.

[0015] Optionally, the agitator is rotatably connected to the rotating member, and the rotation axis of the agitator is parallel to the rotation axis of the rotating member; the end of the agitator away from the opening of the groove is constricted, the rotation of the agitator relative to the rotating member is restricted, and the opening of the groove is kept facing away from the slag collection space.

[0016] By adopting the above technical solution, the constricted structure of the turning component and the upward opening of the groove facilitate the movement of the turning component in the granular carbon layer, reduce the resistance of the granular carbon layer to the movement of the turning component, thereby reducing the probability of the turning component getting stuck in the granular carbon layer; it also facilitates the movement of the turning component by carrying some granular carbon through the groove, thereby further improving the turning effect of the turning device on the granular carbon layer.

[0017] Optionally, the flipping device further includes several elastic elements, the two ends of which are respectively connected to the rotating element and the flipping element, and the elastic elements drive the flipping element to keep the opening of the groove facing upward.

[0018] By adopting the above technical solution, the elastic element can drive the flipping element to keep the groove opening facing upward during the movement, so that the flipping element can more stably realize the exchange of positions between the granular carbon near the frame and the granular carbon far away from the frame during the movement, and can further improve the effect of the flipping element moving some of the granular carbon.

[0019] Optionally, when the flipping component moves to its limit position in a direction away from the frame, the flipping component is located above the particulate carbon layer; the groove is opened at an angle relative to the length direction of the flipping component, and the end of the groove near the air intake pipe is the inclined lower end.

[0020] By adopting the above technical solution, when the flipping component moves to the top of the granular carbon layer, some of the granular carbon in the groove can move closer to the air inlet pipe along the inclined direction of the groove, so that the granular carbon with poor VOC adsorption effect is concentrated around the air inlet pipe; since the exhaust gas will mainly come into contact with the granular carbon near the exhaust pipe after entering from the air inlet pipe, the purification effect and purification efficiency of the granular carbon layer on the exhaust gas can be further improved.

[0021] Optionally, the blowing element and the suction element are respectively located near the two ends of the tank body. The blowing element is located in the adsorption space and above the granular carbon layer, and the suction element is located in the slag collection space. The airflow generated by the cleaning device can blow onto the turning element and drive the granular carbon in the groove above the granular carbon layer to move in an inclined direction.

[0022] By adopting the above technical solution, when the waste gas adsorption tank stops purifying waste gas, the cleaning device and the turning device start at the same time. When the airflow of the cleaning device blows onto the turning part that moves above the granular carbon layer, the turning part will shake and sway under the action of the elastic element after being subjected to force. This allows the granular carbon with more VOCs adsorbed in the groove to move down along the inclined direction under the action of gravity, thereby further realizing that the granular carbon with poor VOCs adsorption effect is concentrated around the air inlet pipe.

[0023] Optionally, the filler also includes a pebble layer located between the granular carbon layer and the frame; the flipping member has a plurality of actuating plates at one end away from the groove opening, and when the flipping member moves to its limit position in the direction close to the frame, the actuating plates contact the pebble layer.

[0024] By adopting the above technical solution, the pebble layer below the granular carbon layer can effectively reduce the falling of carbon slag, and at the same time make the air distribution more uniform, so that the exhaust gas can enter the granular carbon layer evenly and smoothly; when adding filler to the adsorption space, starting the turning device can make the pebble layer more evenly distributed in the adsorption space and improve the efficiency of adding filler; when the exhaust gas adsorption tank stops purifying exhaust gas, starting the turning device can turn the granular carbon layer while minimizing the impact on the pebble layer.

[0025] Optionally, the gas blown into the cavity by the air blowing element is steam;

[0026] It also includes a cooling device, which includes several spray pipes connected to an external water source. The spray pipes are located in the adsorption space and above the granular carbon layer.

[0027] By adopting the above technical solution, when the waste gas adsorption tank stops purifying waste gas, the steam blown in can not only blow off the carbon residue, but also take away some of the VOCs adsorbed on the surface of the granular carbon after it comes into contact with the granular carbon. This can extend the service life of the granular carbon layer and enable it to purify waste gas for a longer period of time. The cooling device is used to prevent the granular carbon layer from catching fire due to high temperature and improve the safety of the cleaning process inside the adsorption tank.

[0028] Optionally, a drying device is also included, which is disposed in the cavity and includes a fan, wherein the airflow generated by the fan is directed toward the particulate carbon layer.

[0029] By adopting the above technical solution, when the waste gas adsorption tank stops purifying waste gas, after the cleaning device cleans the granular carbon layer or the cooling device cools the granular carbon layer, the drying device can quickly remove the moisture from the granular carbon layer, keeping the granular carbon layer dry, which facilitates the subsequent purification of waste gas by the granular carbon layer.

[0030] In summary, this application includes at least one of the following beneficial effects:

[0031] 1. After the exhaust gas has been purified for a period of time, the turning device can disrupt the granular carbon layer, thereby making full use of the granular carbon and improving the purification effect of the adsorption tank on the exhaust gas; at the same time, it can make the exhaust gas flow smoothly when passing through the granular carbon, thereby improving the purification efficiency of the adsorption tank on the exhaust gas.

[0032] 2. The turning device can drive the granular carbon to move according to the different VOCs adsorption capacity of the granular carbon, so that the granular carbon moves to the required position, thereby further improving the utilization rate of the VOCs adsorption capacity of the granular carbon.

[0033] 3. It allows for convenient addition of filler material before use of the waste gas adsorption tank, improving efficiency. At the same time, the turning device ensures that the filler material is evenly distributed in the adsorption space.

[0034] 4. It can extend the service life of granular activated carbon in the waste gas purification process, and at the same time improve the safety of the waste gas adsorption tank during use. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of a waste gas adsorption tank in Example 1;

[0036] Figure 2 yes Figure 1 A cross-sectional view along line AA.

[0037] Figure 3 yes Figure 1 A cross-sectional view along line BB.

[0038] Figure 4 This is a vertical sectional view along the axial direction of a waste gas adsorption tank in Example 2;

[0039] Figure 5 This is a vertical sectional view of a waste gas adsorption tank in Example 2, perpendicular to the axis direction;

[0040] Figure 6 This is a schematic diagram of the flipping device in Example 2;

[0041] Figure 7 This is a cross-sectional view of the connection between the flipper and the connector in Embodiment 2.

[0042] Explanation of reference numerals in the attached drawings: 1. Tank body; 11. Cavity; 111. Adsorption space; 112. Slag collection space; 12. Feeding port; 13. Discharge port; 14. Slag discharge port; 2. Frame; 3. Filler; 31. Granular carbon layer; 32. Pebble layer; 4. Air inlet pipe; 5. Air outlet pipe; 6. Tilting device; 61. Rotating component; 62. Tilting component; 621. Groove; 622. Limiting part; 623. Actuating plate; 63. Driving component; 64. Connecting component; 641. Limiting groove; 65. Elastic component; 7. Cleaning device; 71. Air blowing component; 72. Air suction component; 8. Cooling device; 81. Spray pipe; 9. Drying device; 91. Fan. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0044] Example 1:

[0045] Reference Figure 1 This application discloses a waste gas adsorption tank for purifying chemical waste gas, which can effectively reduce the VOCs content in the waste gas.

[0046] Reference Figure 2 and Figure 3 The waste gas adsorption tank includes a tank body 1, a frame 2, filler material 3, an inlet pipe 4, an outlet pipe 5, and a turning device 6. The tank body 1 provides a space for waste gas purification; the frame 2 supports the filler material 3; the filler material 3 reduces the VOC content of the waste gas after it passes through; the inlet pipe 4 allows the waste gas to enter; the outlet pipe 5 allows the waste gas to leave; and the turning device 6 assists in adding the filler material 3 and turning the filler material 3.

[0047] During the exhaust gas purification process, the exhaust gas enters the tank 1 through the inlet pipe 4, and is purified by the filler 3 to reduce its VOC content. Then it leaves through the outlet pipe 5. Before exhaust gas purification, the turning device 6 is activated to assist in adding the filler 3 into the tank 1. When exhaust gas purification is not performed, the turning device 6 is activated to turn the filler 3, so that the filler 3 with purification function can be fully utilized, thereby enabling the exhaust gas adsorption tank to maintain a stable and high exhaust gas purification effect and purification efficiency.

[0048] The tank 1 has a cylindrical structure, and its axis is horizontal. In this embodiment, the tank 1 is preferably supported by four feet to maintain its position on the ground. The interior of the tank 1 has a cavity 11 for exhaust gas purification, and the cavity 11 is preferably also cylindrical in shape.

[0049] The frame 2 is fixedly connected to the tank 1 and is located within the cavity 11. Multiple support legs of the frame 2 are fixedly connected to the bottom of the cavity wall of the cavity 11. The support surface at the top of the frame 2 is flat and horizontal, and the top of the frame 2 has a hollow design. The support surface at the top of the frame 2 divides the cavity 11 into an adsorption space 111 and a slag collection space 112, with the adsorption space 111 located above the slag collection space 112. In this embodiment, preferably, the support surface at the top of the frame 2 is located below the axis of the tank 1, meaning the volume of the adsorption space 111 is larger than the volume of the slag collection space 112.

[0050] Both the inlet pipe 4 and the outlet pipe 5 are hollow cylindrical structures, and both are fixedly installed on the tank body 1. In this embodiment, it is preferable that both the inlet pipe 4 and the outlet pipe 5 pass through the top of the tank body 1, and the axis of the inlet pipe 4 and the axis of the outlet pipe 5 are both vertical.

[0051] The inlet pipe 4 and the outlet pipe 5 are installed on the tank body 1 at two ends close to the axis of the tank body 1, respectively. One end of the inlet pipe 4 is connected to the previous equipment for waste gas purification, and the other end of the inlet pipe 4 is fixedly connected to the top of the frame 2 and communicates with the slag collection space 112. One end of the outlet pipe 5 is connected to the next equipment for waste gas purification, and the other end of the outlet pipe 5 communicates with the adsorption space 111.

[0052] The filler 3 is located above the frame 2 and within the adsorption space 111. The perforation at the top of the frame 2 allows exhaust gas to pass through while preventing the complete filler 3 from passing through. The filler 3 includes a granular carbon layer 31 formed by a large amount of granular carbon. The granular carbon layer 31 is located above the frame 2 and below the exhaust pipe 5, with part of the intake pipe 4 located within the granular carbon layer 31.

[0053] The tank body 1 has several feeding ports 12 for adding filler 3 and several discharging ports 13 for removing filler 3. A cover plate is movably connected to each feeding port 12 and each discharging port 13 to control the opening and closing of the corresponding feeding port 12 or discharging port 13. In this embodiment, it is preferable that the cover plate and the tank body 1 are movably connected by a rotating connection.

[0054] In this embodiment, preferably, the tank body 1 has one feeding port 12 and two discharging ports 13. The feeding port 12 is located at the top of the tank body 1 and between the air inlet pipe 4 and the air outlet pipe 5. The discharging ports 13 are respectively located at both ends of the tank body 1 along the axial direction, and the lower edge of the discharging port 13 is flush with the support surface at the top of the frame 2, which facilitates the discharge of the filler 3.

[0055] During the use of the waste gas adsorption tank, the carbon residue generated from the granular carbon layer 31 will fall through the top of the frame 2 into the slag collection space 112. The tank body 1 is also provided with several slag discharge ports 14 to facilitate cleaning of the slag collection space 112 by workers. The slag discharge ports 14 communicate with the slag collection space 112, and a cover plate is also movably installed on the tank body 1 at each of the slag discharge ports 14. In this embodiment, preferably, the tank body 1 has two slag discharge ports 14, preferably the cover plate is also rotatably connected to the tank body 1, and preferably the two slag discharge ports 14 are located at opposite ends of the axial direction of the tank body 1, with the lower edge of the slag discharge port 14 flush with the lower edge of the slag collection space 112, facilitating cleaning of the slag collection space 112 by workers.

[0056] Furthermore, the filler 3 also includes a pebble layer 32, which is located above the frame 2 and below the granular carbon layer 31. The pebble layer 32, located below the granular carbon layer 31, has a uniform air distribution effect, allowing the exhaust gas entering the slag collection space 112 through the air intake pipe 4 to pass through the top of the frame 2 and the pebble layer 32 more evenly before contacting the granular carbon layer 31. At the same time, it can reduce the probability of the granular carbon layer 31 directly contacting the frame 2 and causing blockage, making the exhaust gas flow more smoothly.

[0057] In other embodiments, after the pebble layer 32 is laid on top of the frame 2, a breathable partition can be installed on top of the pebble layer 32 to reduce the probability of the granular carbon layer 31 mixing with the pebble layer 32.

[0058] A number of tipping devices 6 are installed on the tank body 1. In this embodiment, it is preferable that two tipping devices 6 are installed on the tank body 1. The two tipping devices 6 are located on both sides of the air inlet pipe 4 and are symmetrically distributed along the axis of the tank body 1.

[0059] The flipping device 6 includes a plurality of rotating parts 61, a plurality of flipping parts 62 and a plurality of driving parts 63. In this embodiment, the flipping device 6 preferably includes two rotating parts 61, six flipping parts 62 and two driving parts 63.

[0060] Both the rotating component 61 and the flipping component 62 are located in the adsorption space 111, and the driving component 63 is installed on the outside of the tank body 1. The rotating component 61 has a circular plate-like structure, with two rotating components 61 respectively installed at both ends along the axial direction of the tank body 1, and the rotating components 61 are rotatably connected to the tank body 1. The rotation axis of the rotating component 61 coincides with its own axis and is parallel to the axis of the tank body 1, and both rotating components 61 are aligned with the other rotating component 61 along their respective axes. The driving component 63 is fixedly installed at both ends along the axial direction of the tank body 1. In this embodiment, the driving component 63 is preferably a servo motor, and the output shaft of the driving component 63 passes through the tank body 1 and is fixedly connected to the rotating component 61 to control the rotation of the rotating component 61. Preferably, the two driving components 63 are signal-connected, enabling them to drive the two rotating components 61 to rotate synchronously in opposite directions at the same speed.

[0061] The flipping component 62 is located between the two rotating components 61. The flipping component 62 has an overall elongated structure. The length direction of the flipping component 62 is parallel to the axis of the rotating component 61, and the six flipping components 62 are arranged in a circular array with the axis of the rotating component 61 as the axis.

[0062] The flipping component 62 moves with the rotating component 61, and during its movement, the flipping component 62 can flip the granular carbon layer 31. In this embodiment, it is preferable that when the flipping component 62 moves to its limit position in the direction close to the frame 2, the distance between the flipping component 62 and the top of the frame 2 is adapted to the thickness of the pebble layer 32.

[0063] Before using the waste gas adsorption tank, a certain amount of pebbles is first added to the adsorption space 111 through the feeding port 12. Then, the turning device 6 is started. The turning part 62 moves to spread a large number of pebbles on the frame 2 to form a pebble layer 32, which is convenient for the subsequent addition of other fillers 3. Then, a certain amount of granular carbon is added to the adsorption space 111 through the feeding port 12. Then, the turning device 6 is started. The turning part 62 moves to make a large number of granular carbon evenly distributed on the pebble and the upper surface flat, thereby forming a granular carbon layer 31.

[0064] After the exhaust gas adsorption tank has been used for a period of time, it needs to be stopped for cleaning and other treatments. At this time, the turning device 6 is activated to turn the granular carbon layer 31, which can exchange the positions of the granular carbon near the pebble layer 32 with those far from the pebble layer 32. This allows granular carbon with more VOCs adsorbed on its surface to exchange positions with granular carbon with less VOCs adsorbed on its surface, so that the granular carbon layer 31 can effectively purify exhaust gas for a long time. At the same time, it can reduce the probability that exhaust gas will be affected by VOCs adsorbed on the surface of the granular carbon.

[0065] Furthermore, during the feeding and turning process of the granular carbon layer 31, the turning device 6 can allow the carbon slag mixed in the granular carbon layer 31 to pass through the pebble layer 32 and the frame 2 and enter the slag collection space 112 for collection. When the waste gas adsorption tank is not in use, the staff can remove the carbon slag through the slag discharge port 14.

[0066] The exhaust gas adsorption tank also includes a cleaning device 7 for cleaning the particulate carbon layer 31. The cleaning device 7 includes an air blowing component 71 and an air suction component 72. Both the air blowing component 71 and the air suction component 72 are installed on the tank body 1 and are respectively installed at both ends of the tank body 1 in the axial direction.

[0067] In this embodiment, one end of the blowing component 71 is connected to an external air source, and the other end is connected to the adsorption space 111 or the slag collection space 112; one end of the suction component 72 is connected to an external suction device, and the other end is connected to the adsorption space 111 or the slag collection space 112, which is not connected to the blowing component 71. In this embodiment, it is preferable that the blowing component 71 is connected to the adsorption space 111 and located above the granular carbon layer 31, and located at the end of the tank 1 away from the air inlet pipe 4; and it is preferable that the suction component 72 is connected to the slag collection space 112 and located at the end of the tank 1 near the air inlet pipe 4. In addition, since the suction device connected to the suction component 72 is common prior art, it will not be described in detail here, and the suction device and air source are omitted in the attached drawings.

[0068] During the cleaning process, the air blowing component 71 and the air suction component 72 work simultaneously to form an airflow. The airflow will pass through the adsorption space 111, the granular carbon layer 31, the pebble layer 32, and the frame 2 in sequence, and enter the slag collection space 112. Under the action of the airflow, the carbon slag mixed in the granular carbon layer 31 will eventually fall into the slag collection space 112 with the airflow.

[0069] Furthermore, the air source connected to the blowing component 71 is preferably steam (i.e., water vapor). When VOCs adsorbed on the surface of the granular carbon come into contact with steam, the steam can carry away the VOCs attached to the surface of the granular carbon, thereby improving the VOCs adsorption capacity of the granular carbon. The VOCs carried away by the steam will eventually fall into the slag collection space 112 for collection, making it convenient for workers to remove them together through the slag discharge port 14.

[0070] Because granular carbon adsorbed with VOCs is easily combustible under certain high-temperature conditions, a cooling device 8 is included in the exhaust gas adsorption tank to ensure safety during the cleaning process. The cooling device 8 includes several spray pipes 81, which are installed in the adsorption space 111 and located above the granular carbon layer 31, and are connected to a water source. In this embodiment, the cooling device 8 preferably also includes a temperature detection device for detecting the temperature of the granular carbon layer 31. The temperature detection device is installed in the adsorption space 111. When the temperature detection device detects that the temperature of the granular carbon layer 31 is higher than a certain value, it will drive the water source to spray water onto the granular carbon layer 31 through the spray pipes 81 to cool it down.

[0071] In this embodiment, since the cooling device 8 is a common existing technology, it will not be described in detail here, and the temperature detection device is omitted in the accompanying drawings.

[0072] Furthermore, after the granular activated carbon is cleaned by the cleaning device 7 or cooled by the cooling device 8, the moisture content of the granular activated carbon will increase. The increase in moisture content will affect the ability of the granular activated carbon to adsorb VOCs. In other words, the granular activated carbon needs to be kept dry in order to have a high ability to adsorb VOCs.

[0073] Therefore, the waste gas adsorption tank also includes a drying device 9 for reducing the moisture content of the granular carbon. The drying device 9 is fixedly installed on the tank body 1 and located above the granular carbon layer 31 for drying the granular carbon layer 31. In this embodiment, the drying device 9 is preferably located at the end of the tank body 1 away from the air inlet pipe 4 along the axial direction.

[0074] The drying device 9 includes a blower 91, which is fixedly installed on the outside of the tank 1 and communicates with the adsorption space 111. The blower 91 blows outside gas into the adsorption space 111 to dry the granular carbon layer 31. In this embodiment, since the blower 91 is common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0075] The implementation principle of a waste gas adsorption tank in this application embodiment is as follows:

[0076] Before using the waste gas adsorption tank, pebbles and granular carbon are added to the adsorption space 111 through the feeding port 12. After the different fillers 3 are added, the turning device 6 is started to make the different fillers 3 evenly distributed in the adsorption space 111 and form a pebble layer 32 and a granular carbon layer 31 respectively, making it more convenient for the staff to add fillers 3.

[0077] During the use of the waste gas adsorption tank, the waste gas first enters the slag collection space 112 through the inlet pipe 4, then passes through the frame 2 into the adsorption space 111, and then passes through the pebble layer 32 and the granular carbon layer 31. During the process of passing through the granular carbon layer 31, some of the VOCs contained in the waste gas will be adsorbed on the granular carbon to achieve the purification of the waste gas. Finally, it is discharged through the outlet pipe 5.

[0078] After the waste gas adsorption tank is used, the turning device 6 can be activated to turn over the granular carbon layer 31, disrupting the position of the granular carbon and making full use of it; the cleaning device 7 can also be activated to clean the granular carbon layer 31, reducing the amount of VOCs adsorbed on the surface of the granular carbon and improving the waste gas purification effect of the granular carbon. At the same time, it causes carbon residue and other impurities to fall into the slag collection space 112, making it convenient for staff to clean them.

[0079] Example 2:

[0080] Reference Figure 2 and Figure 4 The difference between this embodiment and embodiment 1 is that the flipping device 6 is further provided with a plurality of connecting members 64 for connecting the flipping member 62 and the rotating member 61.

[0081] Reference Figure 4 and Figure 5 In this embodiment, the connector 64 is preferably a circular plate structure. The connector 64 is rotatably connected to the rotating member 61, and the axis of rotation of the connector 64 coincides with its own axis and the axis of rotation of the rotating member 61. The number of connectors 64 rotatably connected to each rotating member 61 is equal to the number of flipping members 62, and several connectors 64 are arranged in a circular array on the same rotating member 61 with the axis of rotation of the rotating member 61 as the axis.

[0082] Reference Figure 5 and Figure 6 The flipper 62 has a groove 621 on one side, and the cross-section of the flipper 62 is constricted on the side away from the opening of the groove 621. The two ends of the flipper 62 in the length direction are respectively rotatably connected to two connecting members 64. The rotation axis of the flipper 62 relative to the connecting member 64 is parallel to its own length direction and coincides with the axis of the connecting member 64.

[0083] Both ends of the flipping member 62 in the length direction have limiting parts 622, and the connecting member 64 is provided with a limiting groove 641 for the limiting parts 622 to move with the flipping member 62 as it rotates. The limiting parts 622 and the limiting groove 641 cooperate to limit the range of rotation of the flipping member 62 relative to the connecting member 64.

[0084] Reference Figure 6 and Figure 7The center of gravity of the connector 64 is eccentric relative to its own axis, and the center of gravity is biased towards the position of the limiting groove 641. When the connector 64 moves with the rotating member 61, the connector 64 will maintain the limiting groove 641 at its bottom position under its own gravity. When the limiting part 622 cooperates with the limiting groove 641, the flipping member 62 will keep the opening of the groove 621 vertically upward without the action of other external forces, and at this time the flipping member 62 can rotate within the same range of angles relative to the connector 64 in different directions.

[0085] Furthermore, the flipping device 6 also includes several elastic elements 65, which are installed in the limiting groove 641 and located on both sides of the limiting part 622. The two ends of the elastic elements 65 are fixedly connected to the limiting part 622 and the limiting groove 641, respectively, and the several elastic elements 65 on both sides of the limiting part 622 work together to keep the limiting part 622 centered in the limiting groove 641. In this embodiment, the elastic elements 65 are preferably compression springs.

[0086] Reference Figure 5 and Figure 6 Furthermore, the side of the flipper 62 facing away from the opening of the groove 621 also has several actuating pieces 623. The actuating pieces 623 can undergo elastic deformation after being subjected to force, and have the ability to recover their elastic deformation after the external force is removed. In this embodiment, the actuating pieces 623 are preferably made of rubber material.

[0087] When the flipping component 62 moves to its limit position in the direction close to the frame 2, the actuating piece 623 can just contact the pebbles on the top of the pebble layer 32, thereby flipping the granular carbon at the bottom of the granular carbon layer 31.

[0088] Furthermore, it is preferable that the groove 621 is inclined on the flipper 62 relative to the length direction of the flipper 62, and the lower inclined end of the groove 621 is the end of itself close to the air intake pipe 4; and preferably when the flipper 62 moves to its limit position in the direction away from the frame 2, the flipper 62 will be located above the particulate carbon layer 31.

[0089] Reference Figure 4 and Figure 5In this embodiment, the preferred waste gas adsorption tank includes two cleaning devices 7, each corresponding to a turning device 6. When the turning device 62 moves above the granular carbon layer 31, the airflow generated by the cleaning device 7 blows onto the turning device 62. The force of the airflow on the turning device 62 will cause the turning device 62 to rotate relative to the connecting member 64. Under the action of several elastic members 65, the turning device 62 will shake, facilitating the exchange of positions of the granular carbon in the groove 621, allowing the granular carbon with larger mass (i.e., granular carbon adsorbing more VOCs) to exchange positions with the granular carbon with smaller mass (i.e., granular carbon adsorbing less VOCs). At the same time, the airflow blowing into the groove 621 further facilitates the exchange of positions of the granular carbon in the groove 621.

[0090] After the cleaning device 7 and the turning device 6 are activated simultaneously for a period of time, the granular carbon particles in the granular carbon layer 31 that adsorb more VOCs will be concentrated around the air inlet pipe 4, while the granular carbon particles in the granular carbon layer 31 that adsorb less VOCs will be concentrated below the air outlet pipe 5, thereby maximizing the purification effect and efficiency of the granular carbon layer 31 on the exhaust gas.

[0091] The implementation principle of a waste gas adsorption tank in this application embodiment is as follows:

[0092] During the process of turning the granular carbon layer 31 by the turning device 6, the turning part 62 can carry some of the granular carbon along with it through the groove 621, thereby improving the turning effect of the turning device 6 on the granular carbon layer 31; at the same time, during the process of turning the granular carbon layer 31, with the help of the airflow formed by the cleaning device 7, the turning device 6 can make the granular carbon distribute in a certain pattern in the adsorption space 111 according to the amount of VOCs adsorbed, thereby making the granular carbon layer 31 maintain a high exhaust gas purification effect and efficiency.

[0093] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An exhaust gas adsorption canister, characterized by, The utility model provides a carbon adsorption tank, including tank body (1), frame body (2), air inlet pipe (4), air outlet pipe (5) and filler (3), the inside of tank body (1) has cavity (11), frame body (2) sets up in the cavity (11), frame body (2) divides and forms the mutual adsorption space (111) and the slag collection space (112) of intercommunication with cavity (11), and adsorption space (111) is located the upper of slag collection space (112), a plurality of feeding port (12), a plurality of discharge port (13) and a plurality of slag discharge port (14) are set up on tank body (1), feeding port (12), discharge port (13) and slag discharge port (14) are all open and close controllable, feeding port (12) and discharge port (13) all with adsorption space (111) intercommunication, and slag discharge port (14) with slag collection space (112) intercommunication, air inlet pipe (4) and air outlet pipe (5) all set up on tank body (1) and are located the both ends of tank body (1) respectively, one end of air inlet pipe (4) with slag collection space (112) intercommunication, one end of air outlet pipe (5) with adsorption space (111) intercommunication, filler (3) is located in adsorption space (111), and filler (3) includes granular charcoal layer (31), and granular charcoal layer (31) is located the upper of frame body (2), Still include a plurality of turnover device (6), turnover device (6) sets up in adsorption space (111), turnover device (6) includes a plurality of rotating part (61), a plurality of turnover part (62) and a plurality of drive part (63), rotating part (61) is rotationally connected with tank body (1), drive part (63) drives rotating part (61) rotation, a plurality of turnover part (62) all set up on rotating part (61), and rotating part (61) rotation drives a plurality of turnover part (62) to move and overturn granular charcoal layer (31), Still include cleaning device (7), and cleaning device (7) includes air blowing part (71) and air suction part (72), and air blowing part (71) and air suction part (72) are located in adsorption space (111) and slag collection space (112) respectively, The groove (621) for carrying granular charcoal is formed on the turnover part (62), The rotating shaft line of the turnover part (62) is parallel to the rotating shaft line of the rotating part (61), and the end of the turnover part (62) away from the opening of the groove (621) is in the shape of a necking, the rotation of the turnover part (62) relative to the rotating part (61) is limited, and the opening of the groove (621) is kept facing away from the slag collection space (112), The turnover device (6) further includes a plurality of elastic members (65), both ends of the elastic member (65) are connected with the rotating part (61) and the turnover part (62) respectively, and the elastic member (65) drives the turnover part (62) to keep the opening of the groove (621) upward. When the turnover piece (62) moves to the limit position in the direction away from the frame body (2), the turnover piece (62) is located above the granular charcoal layer (31); the groove (621) is obliquely arranged relative to the length direction of the turnover piece (62), and the end of the groove (621) close to the air inlet pipe (4) is the obliquely lower end. The air blowing piece (71) and the air suction piece (72) are respectively close to the two ends of the tank body (1), the air blowing piece (71) is located in the adsorption space (111) and above the granular charcoal layer (31), and the air suction piece (72) is located in the slag collection space (112). The air flow formed by the cleaning device (7) can blow on the turnover piece (62) and drive the granular charcoal in the groove (621) above the granular charcoal layer (31) to move in the oblique direction.

2. A canister according to claim 1, wherein The filler (3) further comprises a cobblestone layer (32) located between the granular charcoal layer (31) and the frame body (2); the end of the turnover piece (62) away from the opening of the groove (621) has a plurality of poking pieces (623); when the turnover piece (62) moves to the limit position in the direction close to the frame body (2), the poking pieces (623) are in contact with the cobblestone layer (32).

3. A canister according to claim 1, wherein The gas blown into the cavity (11) by the air blowing piece (71) is steam; Further comprising a cooling device (8) comprising a plurality of spray pipes (81) connected with a water source, the spray pipes (81) are located in the adsorption space (111) and above the granular charcoal layer (31).

4. A canister according to claim 3, wherein Further comprising a drying device (9) arranged in the cavity (11), the drying device (9) comprises a fan (91), and the air flow direction formed by the fan (91) is towards the granular charcoal layer (31).

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