Intermittent adsorption and desorption device for waste gas treatment

Abstract

The invention relates to the technical field of waste gas treatment, and discloses an intermittent adsorption and desorption device for waste gas treatment, which comprises a tank body, the multiple adsorption parts are distributed in the tank body at intervals in the vertical direction; the waste gas inlet pipe is communicated with one end of the tank body; the waste gas outlet pipe is communicated with the other end of the tank body; the hot air inlet pipe is communicated with one end of the tank body; the hot air outlet pipe is communicated with the other end of the tank body; the cooling pipe is coiled on the outer wall of the tank body, and circulating cooling water is introduced into the cooling pipe; wherein the waste gas inlet pipe and the waste gas outlet pipe are opened and closed at the same time, the hot gas inlet pipe and the hot gas outlet pipe are opened and closed at the same time, and only one of the waste gas inlet pipe and the hot gas inlet pipe is opened in the same time period. The waste gas treatment efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of waste gas treatment, and in particular to an intermittent adsorption and desorption device for waste gas treatment. Background Art

[0002] At present, waste gas treatment often uses adsorbent adsorption to adsorb impurities and harmful substances in waste gas. The adsorbent is placed in an adsorption tank, and the waste gas passes through the adsorption tank to complete the filtration. After the adsorbent is saturated with adsorption, the waste gas is stopped from being passed into the adsorption tank, and hot air is passed into the adsorption tank for desorption, so that the impurities and harmful substances adsorbed by the adsorbent are separated, so that the adsorbent is regenerated, and the waste gas is passed again for adsorption.

[0003] However, in order to improve the adsorption effect of the adsorbent, after hot gas is passed into the adsorption tank for desorption, it needs to be naturally cooled for a long time before the exhaust gas can be passed again, which can easily have an adverse effect on the efficiency of exhaust gas treatment. Summary of the invention

[0004] In order to improve the efficiency of waste gas treatment, the present application provides an intermittent adsorption and desorption device for waste gas treatment.

[0005] The present application provides an intermittent absorption and desorption device for waste gas treatment, which adopts the following technical solution: An intermittent absorption and stripping device for waste gas treatment comprises: a tank body; There are a plurality of adsorption members which are vertically spaced and distributed in the tank body; An exhaust gas inlet pipe is connected to one end of the tank body; An exhaust gas outlet pipe is connected to the other end of the tank body; A hot air inlet pipe is connected to one end of the tank body; A hot gas outlet pipe is connected to the other end of the tank body; and A cooling pipe is coiled around the outer wall of the tank and circulates cooling water; The exhaust gas inlet pipe and the exhaust gas outlet pipe are opened and closed at the same time, the hot gas inlet pipe and the hot gas outlet pipe are opened and closed at the same time, and only one of the exhaust gas inlet pipe and the hot gas inlet pipe is opened in the same time period.

[0006] By adopting the above technical solution, multiple vertically distributed adsorbents can improve the efficiency and capacity of exhaust gas treatment, and by winding the cooling pipe around the outer wall of the tank body, heat exchange with the tank body can be achieved, thereby accelerating the cooling rate of the tank body after the desorption operation, so as to improve the efficiency of exhaust gas treatment.

[0007] Optionally, the intermittent suction and desorption device also includes a cold air inlet pipe and a cold air outlet pipe that are opened and closed at the same time, and the cold air inlet pipe and the cold air outlet pipe are respectively connected to the opposite ends of the tank body, and the cold air inlet pipe is opened after the hot air inlet pipe is closed and before the exhaust gas inlet pipe is opened.

[0008] By adopting the above technical solution, the cold air inlet pipe and the cold air outlet pipe are opened and closed at the same time, and cold air is introduced after the hot air inlet pipe is closed and before the exhaust gas inlet pipe is opened, which further accelerates the cooling process of the tank body and the adsorbent, and improves the regeneration efficiency of the adsorbent and the continuity of exhaust gas treatment.

[0009] Optionally, the intermittent suction and desorption device further comprises an air guide disk, a rotating shaft and a power member; the air guide disks are provided with two, the two air guide disks are both rotatably connected to the tank body, and all the adsorbents are located between the two air guide disks; each of the air guide disks has a connecting cavity penetrating two opposite sides of the air guide disk; The rotating shaft is coaxially connected to the two air guide discs at the same time, and the rotating shaft passes through all the adsorption members at the same time; the power member is installed on the tank body and is used to drive the rotating shaft to rotate, so as to drive the air guide disc to rotate in the tank body.

[0010] By adopting the above technical solution, the power part drives the rotating shaft and the air guide plate to rotate in the tank body, so that the connecting cavity can be relative to different positions of the adsorption part, thereby guiding the airflow passing through the adsorption part to different positions of the adsorption part, improving the uniformity of the airflow passing through the adsorption part, and improving the airflow passing effect.

[0011] Optionally, the outer wall of the rotating shaft is coaxially sleeved with a connecting sleeve, the connecting sleeve is simultaneously penetrated by all the adsorption members, the connecting sleeve is simultaneously abutted between the two air guide plates, and the adsorption member located at the bottom of all the adsorption members is threadedly sleeved on the connecting sleeve; The rotating shaft is provided with a limiter, and the tank body is connected with a telescopic member cooperating with the power member, and the telescopic member can drive the rotating shaft to switch between a first position and a second position by driving the power member to move up and down; the first position is characterized by the rotating shaft and the connecting sleeve being connected through the limiter and being able to rotate synchronously, and the second position is characterized by the limiter being separated from the connecting sleeve; The adsorbent includes an activated carbon plate and a thermal insulation ring, wherein the thermal insulation ring is sleeved on the outer wall of the activated carbon plate, and the thermal insulation ring abuts against the activated carbon plate and the inner wall of the tank body. When the rotating shaft is in the first position, the rotation of the rotating shaft can drive the adsorbent to switch between a heat preservation position and a heat dissipation position; the heat preservation position is characterized by the thermal insulation rings of all the adsorbents abutting against each other in sequence along the vertical direction, and the heat dissipation position is characterized by the thermal insulation rings of all the adsorbents being separated from each other.

[0012] By adopting the above technical solution, the insulation rings of all adsorbents are offset against each other in the heat preservation position, thereby improving the thermal efficiency; and the insulation rings of all adsorbents are separated in the heat dissipation position, thereby accelerating the cooling speed.

[0013] Optionally, the limiting member includes a spline, and the spline is coaxially sleeved on the outer wall of the rotating shaft. The air guide plate located above and the connecting sleeve are provided with key slots for the spline to be plugged in. When the rotating shaft switches between the first position and the second position, the spline is always plugged into the corresponding air guide plate.

[0014] By adopting the above technical solution and using the combination of splines and keyways, the rotating shaft can be stably connected to or separated from the connecting sleeve when switching between the first position and the second position, while maintaining connection with the upper air guide plate, thereby improving the stability and reliability of the device.

[0015] Optionally, the air guide plate located below has a through hole for the rotating shaft to pass through, and the air guide plate is provided with a stopper on the inner wall of the through hole. The rotating shaft is vertically provided with a stopper groove for the stopper to press into and slide.

[0016] By adopting the above technical solution, the anti-rotation part cooperates with the anti-rotation groove to limit the relative rotation between the air guide plate located below and the rotating shaft, so that when the rotating shaft rotates, the air guide plate located below can be driven to rotate together.

[0017] Optionally, the outer wall of the thermal insulation ring has a guide portion that presses into the inner wall of the tank body, and the inner wall of the tank body has a guide groove for the guide portion to slide vertically, the guide portion corresponds to the guide groove one by one, and the guide grooves corresponding to different thermal insulation rings are staggered; when the adsorbent is in the heat dissipation position, all the adsorbents are in contact with the inner bottom wall of the corresponding guide groove.

[0018] By adopting the above technical solution, the cooperation between the guide portion and the guide groove can limit the relative rotation between the adsorption component and the tank body, and limit the position of the adsorption component when it is in the heat dissipation position.

[0019] Optionally, the adsorbent located at the bottom is connected to an insulation cloth, and the other end of the insulation cloth is connected to the inner wall of the tank body and close to the air guide plate located at the bottom; when the adsorbent is located at the insulation position, the insulation cloth is driven to unfold; when the adsorbent is located at the heat dissipation position, the insulation cloth is driven to be folded and stored.

[0020] By adopting the above technical solution, the insulation cloth can fill the space between the bottom adsorption component and the air guide plate when the adsorption component is in the insulation position, thereby further insulating the airflow in the tank body.

[0021] Optionally, the exhaust gas intake pipe and the hot gas intake pipe are both located at the upper end of the tank body.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. By setting a cooling pipe coiled on the outer wall of the tank and circulating cooling water, the natural cooling time of the adsorbent after desorption is shortened, so that the adsorbent can be regenerated faster and put back into the exhaust gas treatment process, thereby improving the efficiency of exhaust gas treatment; 2. By using multiple adsorption parts distributed at intervals in a vertical direction, and through the cooperation of the air guide plate, the rotating shaft and the power parts, the exhaust gas can pass through the adsorption parts more evenly, thereby improving the adsorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of an embodiment of the present application when the rotating shaft is in the first position; Figure 2 yes Figure 1 The cross-sectional view at AA after hiding the cooling pipe; Figure 3 is a schematic diagram of the structure when the adsorption component in the embodiment of the present application is in the heat dissipation position; Figure 4 yes Figure 2 A schematic diagram of the enlarged structure at B in the middle; Figure 5 yes Figure 2 Schematic diagram of the enlarged structure at C in the middle; Figure 6 is a schematic structural diagram of another angle when the adsorption component in the embodiment of the present application is in the heat dissipation position; Figure 7 It is a schematic diagram of the structure when the adsorption component is in the heat preservation position in the embodiment of the present application.

[0024] Explanation of the reference numerals in the accompanying drawings: 1. tank body; 2. adsorption member; 201. activated carbon plate; 202. thermal insulation ring; 3. exhaust gas inlet pipe; 4. exhaust gas outlet pipe; 5. hot gas inlet pipe; 6. hot gas outlet pipe; 7. cooling pipe; 8. cold air inlet pipe; 9. cold air outlet pipe; 10. air guide plate; 11. rotating shaft; 12. power member; 13. connecting cavity; 14. connecting sleeve; 15. limiting member; 16. telescopic member; 17. spline; 18. keyway; 19. perforation; 20. anti-rotation part; 21. anti-rotation groove; 22. guide part; 23. guide groove; 24. insulation cloth; 25. insulation ring; 26. tank cover. DETAILED DESCRIPTION

[0025] The following is combined with Figures 1 to 7 This application is described in further detail.

[0026] The present application discloses an intermittent adsorption device for waste gas treatment. Figure 1 The intermittent adsorption and desorption device for waste gas treatment includes a tank body 1, an adsorbent 2, a waste gas inlet pipe 3, a waste gas outlet pipe 4, a hot gas inlet pipe 5, a hot gas outlet pipe 6 and a cooling pipe 7.

[0027] Reference Figure 1 and Figure 2 The tank body 1 is cylindrical with its axis extending vertically, and the outer peripheral wall of the tank body 1 is made of a hard heat-conducting material, which is a metal material in this embodiment, and the top of the tank body 1 is a tank cover 26. There are multiple adsorbents 2, which are vertically distributed in the inner cavity of the tank body 1 in sequence. Each adsorbent 2 isolates the cavities on the upper and lower sides of itself and is only connected through the adsorbent 2. The adsorbent 2 is used to adsorb harmful molecules in the exhaust gas.

[0028] The exhaust gas inlet pipe 3 and the hot gas inlet pipe 5 are both installed on the tank cover 26 and are both connected to the inner cavity of the tank body 1. The exhaust gas outlet pipe 4 and the hot gas outlet pipe 6 are both installed at the bottom of the tank body 1 and are both connected to the inner cavity of the tank body 1. The exhaust gas inlet pipe 3, the exhaust gas outlet pipe 4, the hot gas inlet pipe 5 and the hot gas outlet pipe 6 are all provided with opening and closing valves (not shown in the figure), and the exhaust gas outlet pipe 4 and the hot gas outlet pipe 6 are all provided with fans for air suction (not shown in the figure). The exhaust gas inlet pipe 3 and the exhaust gas outlet pipe 4 are opened and closed synchronously, and the hot gas inlet pipe 5 and the hot gas outlet pipe 6 are also opened and closed synchronously, and only one of the exhaust gas inlet pipe 3 and the hot gas inlet pipe 5 can be in the open state in the same period of time.

[0029] The cooling pipe 7 is wound around the outer wall of the tank body 1 in a threaded manner, and the cooling pipe 7 is externally connected to a cooling water pool (not shown in the figure) so that cooling water circulates in the cooling water pipe.

[0030] When the adsorption and desorption device is used, the exhaust gas inlet pipe 3 and the exhaust gas outlet pipe 4 are first opened, so that the exhaust gas enters the tank body 1 from the exhaust gas inlet pipe 3 and passes through the adsorption and filtration of multiple adsorbents 2 in sequence, and then is discharged from the exhaust gas outlet pipe 4. When the adsorption capacity of the adsorbent 2 is close to saturation, the exhaust gas inlet pipe 3 and the exhaust gas outlet pipe 4 are closed, and the hot gas inlet pipe 5 and the hot gas outlet pipe 6 are opened, and the high-temperature steam enters the tank body 1 from the hot gas inlet pipe 5 and passes through the adsorbent 2 in sequence, so that the harmful substance molecules adsorbed by the adsorbent 2 are desorbed with the steam and discharged from the hot gas outlet pipe 6 for the next step of treatment. When the high-temperature steam is passed through the tank body 1, the cold water pipe stops flowing water. When the high-temperature steam stops passing through the tank body 1, the cooling pipe 7 continues to flow water to quickly cool down the tank body 1 and the adsorbent 2, so that the adsorbent 2 returns to a state where it can adsorb harmful substance molecules. When the tank body 1 is cooled down and the exhaust gas is passed, the cold water pipe continues to flow water to cool down the exhaust gas in the tank body 1.

[0031] Reference Figure 1Furthermore, the intermittent suction and desorption device also includes a cold air inlet pipe 8 and a cold air outlet pipe 9. The cold air inlet pipe 8 is installed on the tank cover 26 and communicated with the inner cavity of the tank body 1, and the cold air outlet pipe 9 is installed on the bottom wall of the tank body 1 and communicated with the inner cavity of the tank body 1. The cold air inlet pipe 8 passes cold air, and both the cold air inlet pipe 8 and the cold air outlet pipe 9 have opening and closing valves (not shown in the figure), and the cold air outlet pipe 9 has a fan for suction (not shown in the figure). When the tank body 1 needs to be cooled, in addition to cooling through the cooling pipe 7, the cold air inlet pipe 8 and the cold air outlet pipe 9 are opened at the same time, so that the cold air enters the tank body 1 through the cold air inlet pipe 8 and passes through the adsorbent 2 in turn to cool the adsorbent 2, and then is discharged from the cold air outlet pipe 9. And when the waste gas and hot air are passed in the tank body 1, the cold air inlet pipe 8 and the cold air outlet pipe 9 are both in a closed state.

[0032] Reference Figure 2 and Figure 3 Furthermore, in order to improve the uniformity of the gas passing through various parts of the adsorbent 2 when the tank body 1 is ventilated, the intermittent adsorption and desorption device also includes an air guide disk 10, a rotating shaft 11 and a power part 12. Specifically, there are two air guide disks 10, both of which are disc-shaped. Both air guide disks 10 are coaxially rotatably connected to the tank body 1, and the two air guide disks 10 are respectively close to the upper and lower ends of the tank body 1, and all adsorbents 2 are located between the two air guide disks 10. A fan-shaped connecting cavity 13 is provided on each air guide disk 10, and the connecting cavity 13 runs through the upper and lower surfaces of the air guide disk 10. The gas needs to pass through the air guide disk 10 from the connecting cavity 13, and the connecting cavities 13 of the two air guide disks 10 overlap vertically.

[0033] Reference Figure 2 and Figure 4 The rotating shaft 11 coaxially penetrates the tank body 1, the two air guide discs 10 and all the adsorbents 2 at the same time, and the upper end of the rotating shaft 11 slides upward to penetrate the tank cover 26, and the lower end of the rotating shaft 11 slides downward to penetrate the bottom of the tank body 1. The end of the rotating shaft 11 close to the tank cover 26 is coaxially sleeved and fixed with a spline 17. The upper air guide disc 10 of the two air guide discs 10 is provided with a keyway 18 for the spline 17 to penetrate. The rotating shaft 11 cooperates with the upper air guide disc 10 by inserting the spline 17 into the keyway 18.

[0034] Reference Figure 2 and Figure 5 The lower one of the two air guide plates 10 is provided with a through hole 19 for the rotating shaft 11 to slide through, and the air guide plate 10 has an inwardly protruding anti-rotation portion 20 on the inner wall of the through hole 19, and the rotating shaft 11 is provided with an anti-rotation groove 21 for the anti-rotation portion 20 to press into, and the anti-rotation groove 21 extends vertically. The rotating shaft 11 is matched with the lower air guide plate 10 through the cooperation between the anti-rotation portion 20 and the anti-rotation groove 21.

[0035] Reference Figure 2 and Figure 3 The power part 12 is a rotating motor. The power part 12 is installed on the tank cover 26 and is coaxially connected to the rotating shaft 11. The connection between the power part 12 and the rotating shaft 11 can be directly fixed or detachably connected through the cooperation of flange bolts. The power part 12 can drive the rotating shaft 11 to rotate. When the rotating shaft 11 rotates, it also drives the two air guide plates 10 to rotate, so that the connecting cavity 13 on the air guide plate 10 moves circumferentially along the rotating shaft 11. When exhaust gas, steam and cold air are passed through the tank body 1, the air guide plate 10 is driven by the power part 12 to rotate at a uniform speed. The air guide plate 10 guides the gas to different positions relative to the adsorbent 2 through the connecting cavity 13, thereby evenly passing the gas through the range of the adsorbent 2 and improving the utilization rate of the adsorbent 2.

[0036] Reference Figure 2 Furthermore, in order to improve the thermal insulation performance when hot steam is passed through the tank body 1, the inner wall of the tank body 1 between the upper air guide plate 10 and the inner top wall of the tank body 1, and the inner wall between the lower air guide plate 10 and the inner bottom wall of the tank body 1 are provided with an insulation ring 25. The insulation ring 25 is annular and coaxially placed in the tank body 1 and abutted against the inner wall of the tank body 1, and the insulation ring 25 is made of insulation material.

[0037] Reference Figure 2 and Figure 3 The adsorbent 2 includes an activated carbon plate 201 and an insulation ring 202. The activated carbon plate 201 is disc-shaped, and the insulation ring 202 is ring-shaped. The insulation ring 202 is fixedly coaxially sleeved on the outer wall of the activated carbon plate 201. The insulation ring 202 is made of hard and heat-insulating material, and the thickness of the insulation ring 202 is greater than the thickness of the activated carbon plate 201. The upper and lower sides of the insulation ring 202 along its own axis are respectively beyond the upper and lower sides of the activated carbon plate 201, and the outer diameter of the insulation ring 202 is consistent with the inner diameter of the tank body 1.

[0038] Reference Figure 2 , Figure 3 and Figure 6 When the adsorbent 2 is located in the tank body 1, the activated carbon plate 201 is coaxial with the tank body 1, and the outer periphery of the thermal insulation ring 202 abuts against the inner wall of the tank body 1. The outer wall of the thermal insulation ring 202 has a block-shaped guide portion 22, and the inner wall of the tank body 1 is provided with a guide groove 23 for the guide portion 22 to slide, so as to limit the relative rotation between the adsorbent 2 and the tank body 1. The guide portion 22 corresponds to the guide groove 23 one by one, and the guide portions 22 on different thermal insulation rings 202 are at different vertical positions, so the guide grooves 23 corresponding to different thermal insulation rings 202 are staggered.

[0039] It should be noted that the extension lengths and positions of the guide grooves 23 corresponding to different temperature-isolating rings 202 are also different. Specifically, the adsorbent 2 has a heat-insulating position and a heat-dissipating position corresponding to itself.

[0040] Reference Figure 7 When the adsorbent 2 is in the heat preservation position, each insulation ring 202 moves upward until the insulation rings 202 abut against each other vertically in sequence, and the top insulation ring 202 abuts against the air guide plate 10 located above.

[0041] Reference Figure 2 and Figure 3 When the adsorbent 2 is in the heat dissipation position, each insulation ring 202 moves downward until the insulation rings 202 are separated from each other, and there is an exposed peripheral wall of the tank body 1 between adjacent insulation rings 202, and the guide portion 22 on the insulation ring 202 abuts against the inner bottom wall of the corresponding guide groove 23. At this time, the insulation rings 202 are evenly spaced vertically along the tank body 1.

[0042] Reference Figure 3 and Figure 4 In order to drive the adsorbent 2 to switch between the heat preservation position and the heat dissipation position, a connecting sleeve 14 is coaxially sleeved on the outer wall of the rotating shaft 11, and the upper and lower ends of the connecting sleeve 14 are respectively against the opposite sides of the two air guide plates 10. The connecting sleeve 14 is simultaneously penetrated by the activated carbon plates 201 of all the adsorbents 2, and the activated carbon plate 201 of the adsorbent 2 at the bottom of all the adsorbents 2 is threadedly sleeved on the outer wall of the connecting sleeve 14, and the activated carbon plates 201 of the remaining adsorbents 2 are all slidably sleeved on the outer wall of the connecting sleeve 14.

[0043] The rotating shaft 11 has a limiter 15 for connecting with the connecting sleeve 14. In this embodiment, the limiter 15 is a spline 17 on the connecting sleeve 14 that cooperates with the air guide plate 10. The top of the connecting sleeve 14 also has a keyway 18 for the spline 17 to be inserted.

[0044] Reference Figure 2 The can cover 26 is connected with a telescopic member 16 for driving the power member 12 to move up and down. The telescopic member 16 can be an electric telescopic rod or a cylinder. The base of the telescopic member 16 is positioned relative to the can cover 26. The telescopic end of the telescopic member 16 is connected to the power member 12 downward and telescopes vertically. When the telescopic member 16 drives the power member 12 to move, it can drive the rotating shaft 11 to switch between the first position and the second position corresponding to itself.

[0045] Reference Figure 2 , Figure 4 and Figure 5Specifically, when the telescopic end of the telescopic member 16 extends downward, it drives the rotating shaft 11 to move to the first position. At this time, the spline 17 of the rotating shaft 11 is simultaneously inserted into the air guide plate 10 and the connecting sleeve 14 located above to limit the relative rotation between the rotating shaft 11 and the connecting sleeve 14. At this time, the power member 12 drives the rotating shaft 11 to rotate in the positive direction, which can drive the connecting sleeve 14 to rotate together, and can drive the bottom adsorption member 2 to move upward and support and push the remaining adsorption members 2 to move upward to the heat preservation position. When the rotating shaft 11 is in the first position and the power member 12 rotates the rotating shaft 11 in the reverse direction, it can drive the connecting sleeve 14 to rotate together, and can drive the bottom adsorption member 2 to move downward. The remaining adsorption members 2 also move downward due to their own gravity, so that the adsorption member 2 moves to the heat dissipation position.

[0046] When the telescopic end of the telescopic member 16 is retracted upward, the rotating shaft 11 is driven to move to the second position. At this time, the spline 17 of the rotating shaft 11 moves upward away from the connecting sleeve 14 but is still plugged into the air guide plate 10. At this time, the power member 12 continues to drive the rotating shaft 11 to rotate, and the connecting sleeve 14 does not rotate with the rotating shaft 11. It should be noted that when the rotating shaft 11 switches between the first position and the second position, the anti-rotation part 20 is located in the anti-rotation groove 21. Therefore, when the rotating shaft 11 rotates, it always drives the two air guide plates 10 to rotate together.

[0047] Reference Figure 2 When exhaust gas passes through the tank body 1, the rotating shaft 11 is in the second position and the adsorbent 2 is in the heat dissipation position. When the exhaust gas passes through the tank body 1, the cooling pipe 7 cools the tank body 1. The tank body 1 exchanges heat with the exhaust gas through the tank wall between two adjacent insulation rings 202 to cool the exhaust gas, and the rotating shaft 11 continues to rotate.

[0048] After the exhaust gas is stopped and before the steam is started in the tank body 1, the rotating shaft 11 first moves to the first position, and then rotates to drive the adsorbent 2 to move to the heat preservation position, and then the rotating shaft 11 returns to the second position to keep the adsorbent 2 at the heat preservation position and the rotating shaft 11 continues to rotate. Then, steam is passed into the tank body 1 to desorb the adsorbent 2. When the steam passes through the adsorbent 2 in turn, the heat preservation ring 25 and the heat isolation ring 202 isolate the steam from the inner wall of the tank body 1, and the adsorbents 2 are close to each other, so as to reduce the heat loss in the steam and improve the desorption effect of the steam on the adsorbent 2.

[0049] After the desorption operation is completed and the steam in the tank body 1 stops flowing, cold air starts flowing in the tank body 1 to cool the tank body 1 and the adsorbent 2. At the same time, the rotating shaft 11 moves to the first position, and then rotates in the opposite direction to drive the adsorbent 2 to move to the heat dissipation position. The rotating shaft 11 returns to the second position and continues to rotate. At this time, the adsorbents 2 are separated from each other, and the distance between two adjacent adsorbents 2 increases. The cooling pipe 7 further cools the tank body 1 through the tank wall between the two insulation rings 202, thereby improving the cooling efficiency of the tank body 1. After the cooling of the tank body 1 and the adsorbent 2 is completed, the tank body 1 stops flowing with cold air and starts flowing with exhaust gas.

[0050] Reference Figure 2 and Figure 7 Furthermore, an insulation cloth 24 is connected to the insulation ring 202 of the bottommost adsorbent 2. The insulation cloth 24 is made of a flexible insulation cloth material and is cylindrical. The top of the insulation cloth 24 is connected to the insulation ring 202, and the bottom of the insulation cloth 24 is connected to the inner wall of the tank body 1 and is close to the air guide disk 10 located below. When the adsorbent 2 is in the heat dissipation position, the folds of the insulation cloth 24 are stored between the bottommost adsorbent 2 and the air guide disk 10, and the gas passes through the inner cavity of the insulation cloth 24. When the adsorbent 2 is in the heat preservation position, the insulation cloth 24 is lifted up by the adsorbent 2 and unfolded to isolate the inner wall of the tank body 1 between the bottommost adsorbent 2 and the air guide disk 10 from the gas, further improving the heat preservation effect on the gas.

[0051] The implementation principle of an intermittent adsorption and desorption device for waste gas treatment in an embodiment of the present application is as follows: when waste gas and cold air are passed into the tank body 1, the adsorbent 2 is located in the heat dissipation position, and the cooling pipe 7 can conduct cold air into the tank body 1 through the tank wall between two adjacent insulation rings 202 to cool the tank body 1 and the adsorbent 2. When steam is passed into the tank body 1, the adsorbent 2 is located in the heat preservation position, thereby isolating the steam from the heat-conducting wall of the tank body 1 and reducing the heat loss of the steam. And when waste gas, cold air and steam are passed into the tank body 1, the power part 12 continuously drives the air guide disk 10 to rotate.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An intermittent adsorption and desorption device for waste gas treatment, characterized in that: include: Tank (1); A plurality of adsorption members (2) are vertically spaced and distributed in the tank body (1); An exhaust gas intake pipe (3) connected to one end of the tank body (1); An exhaust gas outlet pipe (4) connected to the other end of the tank body (1); A hot air inlet pipe (5) connected to one end of the tank body (1); A hot air outlet pipe (6) connected to the other end of the tank body (1); and A cooling pipe (7) is coiled around the outer wall of the tank body (1) and circulates cooling water; The exhaust gas inlet pipe (3) and the exhaust gas outlet pipe (4) are opened and closed at the same time, the hot gas inlet pipe (5) and the hot gas outlet pipe (6) are opened and closed at the same time, and only one of the exhaust gas inlet pipe (3) and the hot gas inlet pipe (5) is opened in the same time period; The intermittent suction and removal device further comprises an air guide disk (10), a rotating shaft (11) and a power member (12); the air guide disk (10) is provided with two, the two air guide disks (10) are both rotatably connected to the tank body (1), and all the adsorbents (2) are located between the two air guide disks (10); each of the air guide disks (10) has a connecting cavity (13) penetrating two opposite sides of the air guide disk (10); The rotating shaft (11) is coaxially connected to the two air guide discs (10) at the same time, and the rotating shaft (11) passes through all the adsorption components (2) at the same time; the power component (12) is installed on the tank body (1) and is used to drive the rotating shaft (11) to rotate, so as to drive the air guide disc (10) to rotate in the tank body (1).

2. The intermittent adsorption and desorption device for waste gas treatment according to claim 1, characterized in that: The intermittent suction and desorption device also includes a cold air inlet pipe (8) and a cold air outlet pipe (9) which are opened and closed simultaneously, wherein the cold air inlet pipe (8) and the cold air outlet pipe (9) are respectively connected to opposite ends of the tank body (1), and the cold air inlet pipe (8) is opened after the hot air inlet pipe (5) is closed and before the exhaust air inlet pipe (3) is opened.

3. The intermittent adsorption and desorption device for waste gas treatment according to claim 1, characterized in that: The outer wall of the rotating shaft (11) is coaxially sleeved with a connecting sleeve (14), the connecting sleeve (14) simultaneously passes through all the adsorption members (2), the connecting sleeve (14) simultaneously abuts between the two air guide plates (10), and the adsorption member (2) located at the bottom of all the adsorption members (2) is threadedly sleeved on the connecting sleeve (14); The rotating shaft (11) is provided with a stopper (15); the tank body (1) is connected with a telescopic member (16) cooperating with the power member (12); the telescopic member (16) can drive the power member (12) to move up and down so as to drive the rotating shaft (11) to switch between a first position and a second position; the first position is characterized by the rotating shaft (11) and the connecting sleeve (14) being connected via the stopper (15) and being able to rotate synchronously; the second position is characterized by the stopper (15) and the connecting sleeve (14) being separated; The adsorbent (2) comprises an activated carbon plate (201) and a thermal insulation ring (202); the thermal insulation ring (202) is sleeved on the outer wall of the activated carbon plate (201), and the thermal insulation ring (202) abuts between the activated carbon plate (201) and the inner wall of the tank body (1); when the rotating shaft (11) is in the first position, the rotation of the rotating shaft (11) can drive the adsorbent (2) to switch between a heat preservation position and a heat dissipation position; the heat preservation position is characterized by the thermal insulation rings (202) of all the adsorbents (2) abutting against each other in sequence in the vertical direction, and the heat dissipation position is characterized by the thermal insulation rings (202) of all the adsorbents (2) being separated from each other.

4. The intermittent adsorption and desorption device for waste gas treatment according to claim 3, characterized in that: The limiting member (15) comprises a spline (17), and the spline (17) is coaxially sleeved on the outer wall of the rotating shaft (11). The air guide plate (10) located above and the connecting sleeve (14) are both provided with a keyway (18) for the spline (17) to be plugged in. When the rotating shaft (11) switches between the first position and the second position, the spline (17) is always plugged in the corresponding air guide plate (10).

5. The intermittent adsorption and desorption device for waste gas treatment according to claim 4, characterized in that: The air guide plate (10) located at the bottom has a through hole (19) for the rotating shaft (11) to pass through, and the air guide plate (10) is provided with a rotation-stopping portion (20) on the inner wall of the through hole (19), and the rotating shaft (11) is provided with a rotation-stopping groove (21) in the vertical direction for the rotation-stopping portion (20) to abut against and slide.

6. The intermittent adsorption and desorption device for waste gas treatment according to claim 3, characterized in that: The outer wall of the thermal insulation ring (202) is provided with a guide portion (22) that abuts against the inner wall of the tank body (1), and the inner wall of the tank body (1) is provided with a guide groove (23) for the guide portion (22) to slide vertically, the guide portion (22) corresponds to the guide groove (23) one by one, and the guide grooves (23) corresponding to different thermal insulation rings (202) are staggered; when the adsorbents (2) are in the heat dissipation position, all the adsorbents (2) abut against the inner bottom walls of the corresponding guide grooves (23).

7. The intermittent adsorption and desorption device for waste gas treatment according to claim 3, characterized in that: The adsorbent (2) at the bottom is connected to a heat-insulating cloth (24), and the other end of the heat-insulating cloth (24) is connected to the inner wall of the tank body (1) and is close to the air guide plate (10) at the bottom. When the adsorbent (2) is located at the heat-insulating position, the heat-insulating cloth (24) is driven to unfold. When the adsorbent (2) is located at the heat-dissipating position, the heat-insulating cloth (24) is driven to fold and retract.

8. The intermittent adsorption and desorption device for waste gas treatment according to claim 1, characterized in that: The exhaust gas intake pipe (3) and the hot gas intake pipe (5) are both located at the upper end of the tank body (1).

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