An exhaust gas adsorption and desorption apparatus for exhaust gas treatment

Abstract

The utility model discloses a kind of waste gas adsorption-desorption equipment for waste gas treatment, it is related to waste gas treatment technical field.The utility model includes jar body and uniform adsorption component, the top and bottom between the inside cavity both sides of jar body are fixedly connected with grating net plate, the bottom between the inside cavity both sides of jar body is fixedly connected with preliminary adsorption filler layer, the surface of jar body is provided with vibration spreading mechanism.The utility model passes through uniform adsorption component, utilizes driving motor to control rotating disc to drive adjusting rod rotation, adjusting rod drives control frame to control lift rod to move up and down, so that it controls servo motor and rotating shaft adjusting stirring uniform paddle working height, utilizes stirring uniform paddle to carry out three-dimensional stirring to activated carbon particle, promotes the sufficient mixing exchange of center area and edge area activated carbon particle, makes saturated activated carbon transfer to low load area, improves overall adsorbent utilization, avoid premature saturation problem caused by waste gas preferential penetration in local area.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, and in particular relates to a waste gas adsorption and desorption device for waste gas treatment. Background Technology

[0002] Waste gas adsorption-desorption is a technology in waste gas treatment that uses adsorbents to capture gaseous pollutants and then releases and recovers them through a desorption process. In the adsorption stage, pollutant molecules are captured by the surface or pores of the adsorbent, reducing the concentration of harmful substances in the waste gas. In the desorption stage, the adsorbate is removed from the adsorbent by changing the conditions, restoring its adsorption capacity. This technology achieves a closed loop of pollution control and resource recovery, reduces secondary pollution and lowers treatment costs. It is suitable for treating large volumes of low-concentration organic waste gas. Combined with processes such as catalytic combustion, it can efficiently purify waste gas and convert it into harmless substances.

[0003] The activated carbon adsorption bed in existing waste gas adsorption and desorption equipment adopts a cylindrical tank with a structure in which multiple layers of grid plates are laid horizontally inside to support activated carbon particles. Waste gas enters vertically upward from the air inlet at the bottom of the tank and passes through the carbon layer. Because the grid plates are planar rigid structures with uniformly distributed through holes, the waste gas will preferentially pass through the low-resistance area of ​​the carbon layer during transportation, resulting in rapid saturation of activated carbon in this area and slow waste gas flow in the edge area. The effective adsorption surface area utilization rate of the activated carbon at the edge is significantly insufficient. At the same time, the horizontally laid activated carbon bed forms local through channels due to the accumulation gaps between particles. Some waste gas directly penetrates the channels without sufficient diffusion, further reducing the gas-solid contact efficiency and making it unfavorable for use.

[0004] Therefore, we provide a waste gas adsorption-desorption device for waste gas treatment to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a waste gas adsorption and desorption device for waste gas treatment. By combining a uniform adsorption component and a vibration leveling mechanism, it solves the problems in the prior art where uneven airflow distribution in the activated carbon layer leads to localized rapid saturation and horizontally laid activated carbon bed forms a through-flow channel that easily causes waste gas to directly penetrate, reducing gas-solid contact efficiency.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a waste gas adsorption-desorption device for waste gas treatment, comprising a tank and a uniform adsorption assembly. A grid plate is fixedly connected to the top and bottom of both sides of the inner cavity of the tank. A preliminary adsorption packing layer is fixedly connected to the bottom of both sides of the inner cavity of the tank. A vibration leveling mechanism is provided on the surface of the tank. The uniform adsorption assembly includes a control shell. The left side of the control shell is fixedly connected to the tank. A drive motor is fixedly connected to the front of the control shell. A turntable is fixedly connected to the rear of the output end of the drive motor through the control shell. An adjusting rod is fixedly connected to the rear of the turntable. A control frame is fitted onto the surface of the adjusting rod. A lifting rod is fixedly connected to the top of the control frame. A servo motor is fixedly connected to the top of the lifting rod through the control shell. A rotating shaft is fixedly connected to the bottom of the output end of the servo motor. The bottom of the rotating shaft penetrates into the inner cavity of the tank and is fixedly connected to a stirring blade.

[0008] The present invention is further configured such that a drying air supply pipe and an exhaust gas delivery pipe are respectively connected to both sides of the bottom of the tank, a drain pipe is connected to the bottom of the exhaust gas delivery pipe, and a steam pipe is connected to the top of the left side of the tank. Control valves are installed on the surface of the drying air supply pipe, the drain pipe, and the steam pipe. The drying air supply pipe can deliver external dry air into the tank to dry the activated carbon particles. The drain pipe can discharge steam into the condenser for condensation. The steam pipe is used to inject high-temperature steam into the tank. The control valves can control the opening and closing of each pipe.

[0009] The present invention is further configured such that the vibration leveling mechanism includes an annular vibrating shell, the inner wall of which is fixedly connected to the tank body, a conical collecting shell is fixedly connected between the two sides of the inner cavity of the tank body, a vibrating plate is fixedly connected to the surface of the conical collecting shell, the end of the vibrating plate away from the conical collecting shell extends into the inner cavity of the annular vibrating shell, a top plate is provided in the inner cavity of the annular vibrating shell, a rotary motor is fixedly connected to the left side of the annular vibrating shell, a rotating rod is fixedly connected to the right side of the output end of the rotary motor, and cams are fixedly connected to both sides of the surface of the rotating rod. The annular vibrating shell facilitates the installation and fixation of the rotary motor, the conical collecting shell can concentrate the activated carbon particles in the center of the grid plate, the vibrating plate can cooperate with the top plate and the cams to make the conical collecting shell continuously generate high-frequency vibration, spreading the stirred activated carbon particles evenly to the top of the grid plate, and the rotary motor can cooperate with the rotating rod to control the rotation of the two cams.

[0010] The present invention is further configured such that a vibration motor is fixedly connected to the bottom of the inner cavity of the control shell, and a conductive steel plate is fixedly connected between the bottom of the control shell and the tank body. The vibration motor can cooperate with the conductive steel plate to increase the spreading effect of the activated carbon particles, so that they are quickly brought to a flat state and the adsorption effect of the activated carbon particles on the waste gas is improved.

[0011] The present invention is further configured such that a controller is fixedly connected to the left side of the inner cavity of the control housing, and a movable opening is provided on the top of the control housing for use with the lifting rod. The controller can control the entire device, and the movable opening facilitates the adjustment of the position of the servo motor by the lifting rod.

[0012] The present invention is further configured such that a limiting rod is fixedly connected to the rear side of the inner cavity of the control shell, a limiting sleeve is slidably connected to the surface of the limiting rod, and the front side of the limiting sleeve is fixedly connected to the lifting rod. The limiting rod and the limiting sleeve can limit the lifting rod, so that it can stably adjust its up and down position and prevent it from tilting during movement.

[0013] The present invention is further configured such that a positioning frame is slidably connected to the surface of the rotating shaft, and the surface of the positioning frame is fixedly connected to the inner wall of the tank. The positioning frame can improve the stability of the rotating shaft during rotation and prevent the control stirring blade from swaying.

[0014] The present invention is further configured such that a viewing window is installed on the front side of the tank, an exhaust pipe is connected to the top of the tank, an exhaust valve is installed on the surface of the exhaust pipe, the viewing window allows the staff to observe the working status of the activated carbon particles inside the tank, and the exhaust pipe can discharge the adsorbed waste gas from the tank.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model utilizes a uniform adsorption component, where a drive motor controls a turntable to rotate an adjusting rod. The adjusting rod, in turn, drives a control frame to move a lifting rod up and down, which in turn controls a servo motor and a rotating shaft to adjust the working height of the stirring blades. The stirring blades perform three-dimensional stirring of the activated carbon particles, promoting thorough mixing and exchange between the activated carbon particles in the central and peripheral areas. This allows saturated activated carbon to be transferred to a low-load area, improving the overall adsorbent utilization rate, avoiding premature saturation in localized areas due to preferential penetration of waste gas, and enhancing the uniformity of gas-solid contact.

[0017] 2. This utility model utilizes a vibration leveling mechanism, where a rotary motor drives a rotating rod to periodically push a vibrating plate. The vibrating plate transmits high-frequency micro-vibrations to a conical collecting shell. The conical collecting shell gathers the stirred activated carbon particles towards the center and then evenly spreads them onto the surface of the grid plate through vibration energy. Simultaneously, the vibrating motor transmits auxiliary vibration waves to the tank through a transmission steel plate, causing the activated carbon particles to form a dense and uniformly thick flat bed layer on the surface of the grid plate. This eliminates the density difference between the edge and center areas, ensuring that the waste gas flow is evenly diffused to all activated carbon pores, thus solving the problem of wasted adsorption surface area caused by the slow waste gas flow rate at the edge of traditional horizontal beds. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 A perspective view of a waste gas adsorption-desorption device for waste gas treatment;

[0020] Figure 2 This is a cross-sectional view of a tank in a waste gas adsorption-desorption device for waste gas treatment;

[0021] Figure 3 A partial cross-sectional view of the tank and annular vibrating shell in a waste gas adsorption-desorption device for waste gas treatment;

[0022] Figure 4 This is a cross-sectional view of the control shell in a waste gas adsorption-desorption device for waste gas treatment;

[0023] Figure 5 This is a schematic diagram of a drive motor, turntable, adjusting rod, and control frame in a waste gas adsorption-desorption device for waste gas treatment.

[0024] In the attached diagram: 1. Tank body; 2. Grating plate; 3. Preliminary adsorption packing layer; 4. Uniform adsorption assembly; 41. Control shell; 42. Drive motor; 43. Turntable; 44. Adjusting rod; 45. Control frame; 46. Lifting rod; 47. Servo motor; 48. Rotating shaft; 49. Stirring blade; 5. Drying air supply pipe; 6. Waste gas conveying pipe; 7. Drainage pipe; 8. Steam pipe; 9. Vibration leveling mechanism; 91. Annular vibrating shell; 92. Conical collection shell; 93. Vibrating plate; 94. Top plate; 95. Rotary motor; 96. Rotating rod; 97. Cam; 98. Vibration motor; 99. Conducting steel plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-5This utility model is a waste gas adsorption and desorption device for waste gas treatment, including a tank body 1 and a uniform adsorption component 4. A grid plate 2 is fixedly connected to the top and bottom of both sides of the inner cavity of the tank body 1. A preliminary adsorption packing layer 3 is fixedly connected to the bottom of both sides of the inner cavity of the tank body 1. A vibration leveling mechanism 9 is provided on the surface of the tank body 1. The uniform adsorption component 4 includes a control shell 41. The left side of the control shell 41 is fixedly connected to the tank body 1. A drive motor 42 is fixedly connected to the front side of the control shell 41. A turntable 43 is fixedly connected to the rear side of the output end of the drive motor 42 through the control shell 41. An adjusting rod 44 is fixedly connected to the rear side of the turntable 43. A control frame 45 is sleeved on the surface of the adjusting rod 44. A lifting rod 46 is fixedly connected to the top of the control frame 45. A servo motor 47 is fixedly connected to the top of the lifting rod 46 through the control shell 41. A rotating shaft 48 is fixedly connected to the bottom of the output end of the servo motor 47. The bottom of the rotating shaft 48 penetrates into the inner cavity of the tank body 1 and is fixedly connected to a stirring blade 49.

[0028] Specifically: Activated carbon particles can be filled between the two grid plates 2, the preliminary adsorption packing layer 3 can perform preliminary adsorption on the waste gas, the vibration leveling mechanism 9 can level the activated carbon particles after they are uniformly stirred, the drive motor 42 can control the rotation of the turntable 43, the adjusting rod 44 can cooperate with the turntable 43 to adjust the working height of the control frame 45 and the lifting rod 46, the lifting rod 46 is used to control the working position of the servo motor 47 and the rotating shaft 48, the servo motor 47 can control the rotation of the stirring blade 49 to stir and mix the activated carbon particles, so that the activated carbon particles in the surrounding area can be uniformly mixed with the activated carbon particles in the central area, avoiding local absorption saturation and affecting the waste gas treatment effect.

[0029] Example 2

[0030] Please see Figure 1-5Based on Embodiment 1, the bottom of the tank 1 is connected to a drying air supply pipe 5 and an exhaust gas supply pipe 6 on both sides respectively. The bottom of the exhaust gas supply pipe 6 is connected to a drain pipe 7. The top of the left side of the tank 1 is connected to a steam pipe 8. Control valves are installed on the surfaces of the drying air supply pipe 5, the drain pipe 7, and the steam pipe 8. The vibration leveling mechanism 9 includes an annular vibration shell 91. The inner wall of the annular vibration shell 91 is fixedly connected to the tank 1. A conical aggregate shell 92 is fixedly connected between the two sides of the inner cavity of the tank 1. A vibrating plate 93 is fixedly connected to the surface of the conical aggregate shell 92. One end of the vibrating plate 93 away from the conical aggregate shell 92 penetrates into the inner cavity of the annular vibration shell 91. A top plate 94 is provided in the inner cavity of the annular vibration shell 91. A rotary motor 95 is fixedly connected to the left side of the annular vibration shell 91. The rotary motor 95 outputs... A rotating rod 96 is fixedly connected to the right side of the outlet. Cams 97 are fixedly connected to both sides of the surface of the rotating rod 96. A vibration motor 98 is fixedly connected to the bottom of the inner cavity of the control housing 41. A conductive steel plate 99 is fixedly connected between the bottom of the control housing 41 and the tank body 1. A controller is fixedly connected to the left side of the inner cavity of the control housing 41. An movable opening for use with the lifting rod 46 is opened on the top of the control housing 41. A limit rod is fixedly connected to the rear side of the inner cavity of the control housing 41. A limit sleeve is slidably connected to the surface of the limit rod. The front side of the limit sleeve is fixedly connected to the lifting rod 46. A positioning frame is slidably connected to the surface of the rotating shaft 48. The surface of the positioning frame is fixedly connected to the inner wall of the tank body 1. A viewing window is installed on the front side of the tank body 1. An exhaust pipe is connected to the top of the tank body 1. An exhaust valve is installed on the surface of the exhaust pipe.

[0031] Specifically: the drying air supply pipe 5 delivers external dry air to the tank 1 for drying the activated carbon particles; the drain pipe 7 discharges steam to the condenser for condensation; the steam pipe 8 injects high-temperature steam into the tank 1; the control valve controls the opening and closing of each pipe; the annular vibrating shell 91 facilitates the installation and fixing of the rotary motor 95; the conical collecting shell 92 concentrates the activated carbon particles in the center of the grid plate 2; the vibrating plate 93, in conjunction with the top plate 94 and the cam 97, continuously generates high-frequency vibration in the conical collecting shell 92, spreading the agitated activated carbon particles evenly on the top of the grid plate 2; and the rotary motor 95, in conjunction with the rotating rod 96, controls the rotation of the two cams 97. The rotating and vibrating motor 98, in conjunction with the conductive steel plate 99, enhances the spreading effect of activated carbon particles, quickly bringing them to a flat state and improving their adsorption effect on waste gas. The controller can control the entire equipment. The movable opening facilitates the adjustment of the position of the servo motor 47 by the lifting rod 46. The limit rod and limit sleeve can limit the lifting rod 46, enabling it to be stably adjusted up and down, preventing it from tilting during movement. The positioning frame can improve the stability of the rotating shaft 48 during rotation and prevent the control stirring blade 49 from swaying. The viewing window allows the staff to easily observe the working status of the activated carbon particles inside the tank 1. The exhaust pipe can discharge the adsorbed waste gas from the tank 1.

[0032] The working principle of this utility model is as follows: Waste gas enters the bottom of the tank 1 through the waste gas conveying pipe 6, first flows through the preliminary adsorption packing layer 3 for pretreatment, and then rises through the bottom grid plate 2 to enter the activated carbon adsorption area. The activated carbon particles adsorb the VOCs in the waste gas. After a period of adsorption operation, the drive motor 42 is started, which drives the turntable 43 to rotate. The adjusting rod 44 works with the turntable 43 to push the control frame 45 and the lifting rod 46 to move. The lifting rod 46 controls the servo motor 47 to move up and down reciprocally. After the servo motor 47 is started, it drives the rotating shaft 48 and the stirring blade 49 to rotate. The stirring blade 49 performs three-dimensional stirring and mixing of the activated carbon particles, promoting full interaction between the activated carbon at the edge and the center. To improve the uniformity of adsorption, the vibration leveling mechanism 9 then starts operating. The rotary motor 95 drives the rotating rod 96 to rotate, and the rotating rod 96 drives the cam 97 to periodically push the top plate 94, causing the top plate 94 to impact the vibrating plate 93. The vibrating plate 93 transmits the vibration to the conical collection shell 92, which gathers the stirred activated carbon towards the center and levels it with high-frequency vibration. At the same time, the vibration motor 98 transmits auxiliary vibration waves to the tank 1 through the transmission steel plate 99, ensuring that the activated carbon forms a dense and flat bed on the surface of the grid plate 2, eliminating the difference in filling density between the edge area and the center area, and ensuring that the waste gas flow is evenly diffused to all activated carbon pores when passing through, thus solving the problem of wasted adsorption surface area caused by the slow waste gas flow rate at the edge of the traditional horizontal bed.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A waste gas adsorption-desorption device for waste gas treatment, comprising a tank (1) and a uniform adsorption assembly (4), characterized in that: The top and bottom of the inner cavity of the tank (1) are fixedly connected to the grid plate (2), the bottom of the inner cavity of the tank (1) is fixedly connected to the preliminary adsorption filler layer (3), and the surface of the tank (1) is provided with a vibration leveling mechanism (9). The uniform adsorption assembly (4) includes a control shell (41). The left side of the control shell (41) is fixedly connected to the tank (1). A drive motor (42) is fixedly connected to the front side of the control shell (41). A turntable (43) is fixedly connected to the rear side of the output end of the drive motor (42) through the control shell (41). An adjusting rod (44) is fixedly connected to the rear side of the turntable (43). A control frame (45) is fitted on the surface of the adjusting rod (44). A lifting rod (46) is fixedly connected to the top of the control frame (45). A servo motor (47) is fixedly connected to the top of the lifting rod (46) through the control shell (41). A rotating shaft (48) is fixedly connected to the bottom of the output end of the servo motor (47). A stirring blade (49) is fixedly connected to the bottom of the rotating shaft (48) through the inner cavity of the tank (1).

2. The waste gas adsorption-desorption device for waste gas treatment according to claim 1, characterized in that: The bottom of the tank (1) is connected to a drying air supply pipe (5) and an exhaust gas supply pipe (6) on both sides respectively. The bottom of the exhaust gas supply pipe (6) is connected to a drain pipe (7). The top of the left side of the tank (1) is connected to a steam pipe (8). Control valves are installed on the surfaces of the drying air supply pipe (5), the drain pipe (7) and the steam pipe (8).

3. The waste gas adsorption-desorption device for waste gas treatment according to claim 1, characterized in that: The vibration leveling mechanism (9) includes an annular vibrating shell (91), the inner wall of which is fixedly connected to the tank (1), a conical collecting shell (92) is fixedly connected between the two sides of the inner cavity of the tank (1), a vibrating plate (93) is fixedly connected to the surface of the conical collecting shell (92), and the end of the vibrating plate (93) away from the conical collecting shell (92) extends into the inner cavity of the annular vibrating shell (91). A top plate (94) is provided in the inner cavity of the annular vibrating shell (91), a rotary motor (95) is fixedly connected to the left side of the annular vibrating shell (91), a rotating rod (96) is fixedly connected to the right side of the output end of the rotary motor (95), and cams (97) are fixedly connected to both sides of the surface of the rotating rod (96).

4. The waste gas adsorption-desorption device for waste gas treatment according to claim 1, characterized in that: A vibration motor (98) is fixedly connected to the bottom of the inner cavity of the control shell (41), and a conductive steel plate (99) is fixedly connected between the bottom of the control shell (41) and the tank body (1).

5. The waste gas adsorption-desorption device for waste gas treatment according to claim 1, characterized in that: A controller is fixedly connected to the left side of the inner cavity of the control housing (41), and the top of the control housing (41) has an open opening for use with the lifting rod (46).

6. The waste gas adsorption-desorption device for waste gas treatment according to claim 1, characterized in that: A limiting rod is fixedly connected to the rear side of the inner cavity of the control housing (41), a limiting sleeve is slidably connected to the surface of the limiting rod, and the front side of the limiting sleeve is fixedly connected to the lifting rod (46).

7. The waste gas adsorption-desorption device for waste gas treatment according to claim 1, characterized in that: The surface of the rotating shaft (48) is slidably connected to a positioning frame, and the surface of the positioning frame is fixedly connected to the inner wall of the tank (1).

8. The waste gas adsorption-desorption device for waste gas treatment according to claim 1, characterized in that: A viewing window is installed on the front side of the tank (1), and an exhaust pipe is connected to the top of the tank (1). An exhaust valve is installed on the surface of the exhaust pipe.

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