Upper-filling and lower-discharging type activated carbon adsorption device

Abstract

The utility model belongs to the technical field of organic waste gas treatment, and particularly relates to an upper-filling and lower-discharging type activated carbon adsorption device which comprises an air inlet communicating pipe, an air outlet communicating pipe, a feeding pipe, a discharging pipe and a plurality of adsorption boxes, the interior of the adsorption box is sequentially divided into a gas outlet layer, an adsorption layer and a gas inlet layer from front to back through the screen, a first pipeline, a second pipeline, a gas inlet pipe and a gas outlet pipe are arranged outside the adsorption box, the device is suitable for organic waste gas treatment of large-air-volume and low-concentration VOCs, the upper-filling and lower-discharging type activated carbon adsorption device is provided, and adsorption particles are easy to replace. After the scheme is adopted, the adsorption particles can be replaced under the condition that the adsorption operation is not stopped, and adsorption and desorption can be realized in cooperation with a regeneration device of the adsorption particles.

Description

Technical Field

[0001] This utility model belongs to the field of organic waste gas treatment technology, specifically, it relates to an activated carbon adsorption device with top-fill and bottom-discharge. Background Technology

[0002] Industrial processes generate large amounts of organic waste gas containing low concentrations of VOCs. Activated carbon adsorption is an effective method for treating this waste gas, especially granular activated carbon, which has strong adsorption capacity, high purification efficiency, and can be reused multiple times after heating regeneration. It is widely used. However, due to the high regeneration temperature, generally above 400℃, it is necessary to remove the granular activated carbon from the adsorber and regenerate it with a special regeneration device. The inconvenience of loading and unloading existing adsorption devices limits the use of granular activated carbon. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a new technical solution:

[0004] A top-fill, bottom-discharge activated carbon adsorption device includes an inlet connecting pipe, an outlet connecting pipe, a feed pipe, a discharge pipe, and several adsorption boxes. The adsorption boxes are placed in front and behind each other. The inlet connecting pipe, the outlet connecting pipe, the feed pipe, and the discharge pipe are all open at one end. The inlet connecting pipe is located on the left side of the adsorption box, the outlet connecting pipe is located on the right side of the adsorption box, the feed pipe is located on the upper side of the adsorption box, and the discharge pipe is located on the lower side of the adsorption box.

[0005] The adsorption chamber is equipped with two parallel screens. The edges of the screens are perpendicular to and fixedly connected to the inner wall of the adsorption chamber. The screens divide the interior of the adsorption chamber into an outlet layer, an adsorption layer and an inlet layer from front to back.

[0006] The adsorption box is equipped with pipe 1, pipe 2, an air inlet pipe and an air outlet pipe on its exterior. The upper side of the adsorption layer is connected to the feed pipe through pipe 1, and the lower side of the adsorption layer is connected to the discharge pipe through pipe 2. The left side of the air inlet layer is connected to the air inlet connecting pipe through the air inlet pipe, and the right side of the air outlet layer is connected to the air outlet connecting pipe through the air outlet pipe.

[0007] Furthermore, the adsorption layer and the feed pipe are filled with adsorption particles, and the size of the adsorption particles is larger than the sieve aperture. Activated carbon adsorption particles are preferred. The sieve is used to separate the air inlet layer, the adsorption layer and the air outlet layer to prevent adsorption particles from falling into the air inlet connecting pipe and the air outlet connecting pipe.

[0008] Furthermore, a feed valve is provided on pipe 1, a discharge valve is provided on pipe 2, an air inlet valve is provided on the air inlet pipe, and an air outlet valve is provided on the air outlet pipe. The feed valve is used to control unused adsorbent particles to enter the adsorption layer, the discharge valve is used to control the adsorbent particles in the adsorption layer to be discharged into the discharge pipe, the air inlet valve is used to control the gas to be treated to enter the air inlet layer, and the air outlet valve is used to control the treated gas to be discharged from the air outlet layer.

[0009] Furthermore, both the feed pipe and the discharge pipe are equipped with conveyors. The open end of the feed pipe is equipped with an elevator, and the outlet of the elevator is connected to the open end of the feed pipe. The elevator is used to transport unused adsorbent particles to the open end of the feed pipe. The conveyor in the feed pipe is used to transport the adsorbent particles at the open end of the feed pipe to the connection point between the feed pipe and several pipes. The conveyor in the feed pipe is preferably a scraper conveyor or a screw conveyor. The conveyor in the discharge pipe is used to transport used adsorbent particles to the open end of the discharge pipe. The conveyor in the discharge pipe can be a belt conveyor.

[0010] This invention also includes other devices or components that enable the top-fill, bottom-discharge activated carbon adsorption device to function properly, all of which are conventional techniques in the field. Furthermore, the conveyor and elevator not specified in this invention also employ conventional techniques in the field.

[0011] The working principle of this utility model is as follows: During adsorption, the feed valve and discharge valve are closed, while the air inlet valve and air outlet valve are open. The waste gas to be treated enters the adsorption box through the air inlet pipe and is purified by the adsorption layer before exiting through the air outlet pipe and being discharged into the air outlet pipe. When it is necessary to replace the adsorbent particles, the air inlet valve and air outlet valve of the adsorption box whose adsorbent particles need to be replaced are closed, the discharge valve is opened, and the conveyor in the discharge pipe is started. The adsorbent particles are released and transported out from the discharge pipe. When adding adsorbent particles, the discharge valve is closed, the feed valve is opened, and the conveyor and elevator in the feed pipe are started. The adsorbent particles are added from the feed pipe. After the adsorbent particles are full, the feed valve is closed, and the air inlet valve and air outlet valve are opened to restart adsorption.

[0012] The beneficial effects of this invention are that this device is suitable for treating large-volume, low-concentration VOCs organic waste gas, and provides a top-fill, bottom-discharge activated carbon adsorption device, making it easy to replace adsorption particles. With this solution, adsorption particles can be replaced without stopping the adsorption operation, and in conjunction with an adsorption particle regeneration device, adsorption and desorption can be achieved simultaneously. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the right side of this utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the feed pipe in this utility model.

[0017] Figure 4 This is a schematic diagram of the internal structure of the discharge pipe in this utility model.

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the hoist in this utility model.

[0019] Figure 6 This is a partially enlarged structural diagram of the interior of the adsorption box in this utility model.

[0020] Figure 7 This is a schematic diagram of the cross-sectional structure of the adsorption box in this utility model. Detailed Implementation

[0021] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0022] Example

[0023] like Figures 1-6 As shown, the present invention provides an activated carbon adsorption device with top-filling and bottom-discharging, including an inlet connecting pipe 1, an outlet connecting pipe 2, a feed pipe 3, a discharge pipe 4, and several adsorption boxes 5. The adsorption boxes 5 are placed in front and behind each other. The inlet connecting pipe 1, the outlet connecting pipe 2, the feed pipe 3, and the discharge pipe 4 are all open at one end. The inlet connecting pipe 1 is located on the left side of the adsorption box 5, the outlet connecting pipe 2 is located on the right side of the adsorption box 5, the feed pipe 3 is located on the upper side of the adsorption box 5, and the discharge pipe 4 is located on the lower side of the adsorption box 5.

[0024] The adsorption box 5 is equipped with two parallel screens 6 inside. The edges of the screens 6 are perpendicular to the inner wall of the adsorption box 5 and are fixedly connected. The screens 6 divide the interior of the adsorption box 5 into an outlet layer 9, an adsorption layer 8 and an inlet layer 7 from front to back.

[0025] The adsorption box 5 is equipped with a first pipe 10, a second pipe 11, an air inlet pipe 12, and an air outlet pipe 13. The upper side of the adsorption layer 8 is connected to the feed pipe 3 through the first pipe 10, and the lower side of the adsorption layer 8 is connected to the discharge pipe 4 through the second pipe 11. The left side of the air inlet layer 7 is connected to the air inlet connecting pipe 1 through the air inlet pipe 12, and the right side of the air outlet layer 9 is connected to the air outlet connecting pipe 2 through the air outlet pipe 13.

[0026] As a further measure of this utility model, the adsorption layer 8 and the feed pipe 3 are filled with adsorption particles 14, and the size of the adsorption particles 14 is larger than the sieve aperture of the screen 6. Activated carbon adsorption particles are preferred for the adsorption particles 14. The screen 6 is used to separate the air inlet layer 7, the adsorption layer 8, and the air outlet layer 9 to prevent the adsorption particles 14 from falling into the air inlet connecting pipe 1 and the air outlet connecting pipe 2. A feed valve 15 is provided on pipe one 10, a discharge valve 16 is provided on pipe two 11, an air inlet valve 17 is provided on the air inlet pipe 12, and an air outlet valve 18 is provided on the air outlet pipe 13. The feed valve 15 is used to control unused adsorption particles 14 from entering the adsorption layer 8, the discharge valve 16 is used to control the adsorption particles 14 in the adsorption layer 8 from being discharged into the discharge pipe 4, and the air inlet valve 15 is used to control the unused adsorption particles 14 from entering the adsorption layer 8. The treated gas enters the inlet layer 7, and the outlet valve 18 is used to control the discharge of the treated gas from the outlet layer 9. Both the feed pipe 3 and the outlet pipe 4 are equipped with conveyors 19. The opening end of the feed pipe 3 is equipped with an elevator 20, and the outlet of the elevator 20 is connected to the opening end of the feed pipe 3. The elevator 20 is used to transport unused adsorbent particles 14 to the opening end of the feed pipe 3. The conveyor 19 in the feed pipe 3 is used to transport the adsorbent particles 14 at the opening end of the feed pipe 3 to the connection point between the feed pipe 3 and several pipes 10. The conveyor 19 in the feed pipe 3 is a screw conveyor. The conveyor 19 in the outlet pipe 4 is used to transport the used adsorbent particles 14 to the opening end of the outlet pipe 4. The conveyor 19 in the outlet pipe 4 is a belt conveyor.

[0027] The working principle of this utility model is as follows: During adsorption, the feed valve 15 and the discharge valve 16 are closed, while the air inlet valve 17 and the air outlet valve 18 are open. The waste gas to be treated enters the adsorption box 5 through the air inlet pipe 12 from the air inlet connecting pipe 1. After being adsorbed and purified by the adsorption layer 8, it exits from the air outlet pipe 13 and is discharged into the air outlet connecting pipe 2. When it is necessary to replace the adsorbent particles 14, the air inlet valve 17 and the air outlet valve 18 of the adsorption box 5 for which the adsorbent particles 14 need to be replaced are closed, the discharge valve 16 is opened, and the conveyor 19 in the discharge pipe 4 is started. The adsorbent particles 14 are released and transported out from the discharge pipe 4. When adding adsorbent particles 14, the discharge valve 16 is closed, the feed valve 15 is opened, and the conveyor 19 and the elevator 20 in the feed pipe 3 are started. The adsorbent particles 14 are added from the feed pipe 3. After the adsorbent particles 14 are full, the feed valve 15 is closed, and the air inlet valve 17 and the air outlet valve 18 are opened to restart adsorption.

[0028] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A top-fill, bottom-discharge activated carbon adsorption device, comprising an inlet connecting pipe, an outlet connecting pipe, a feed pipe, a discharge pipe, and several adsorption boxes, characterized in that: The adsorption box is placed in front and behind each other. The air inlet pipe, air outlet pipe, feed pipe and discharge pipe are all open at one end. The air inlet pipe is located on the left side of the adsorption box, the air outlet pipe is located on the right side of the adsorption box, the feed pipe is located on the upper side of the adsorption box and the discharge pipe is located on the lower side of the adsorption box. The adsorption box is equipped with two parallel screens inside. The edges of the screens are perpendicular to and fixedly connected to the inner wall of the adsorption box. The screens divide the interior of the adsorption box into an outlet layer, an adsorption layer and an inlet layer from front to back. The adsorption box is equipped with a first pipe, a second pipe, an air inlet pipe, and an air outlet pipe on its exterior. The upper side of the adsorption layer is connected to the feed pipe through the first pipe, and the lower side of the adsorption layer is connected to the discharge pipe through the second pipe. The left side of the air inlet layer is connected to the air inlet connecting pipe through the air inlet pipe, and the right side of the air outlet layer is connected to the air outlet connecting pipe through the air outlet pipe.

2. The activated carbon adsorption device with top-filling and bottom-discharging according to claim 1, characterized in that: The adsorption layer and the feed pipe are filled with adsorption particles, and the size of the adsorption particles is larger than the sieve aperture.

3. The activated carbon adsorption device with top-filling and bottom-discharging according to claim 1, characterized in that: The first pipeline is equipped with a feed valve, the second pipeline is equipped with a discharge valve, the air inlet pipe is equipped with an air inlet valve, and the air outlet pipe is equipped with an air outlet valve.

4. The activated carbon adsorption device with top-filling and bottom-discharging according to claim 1, characterized in that: The feed pipe and the discharge pipe are equipped with conveyors inside, and the open end of the feed pipe is equipped with an elevator, and the outlet of the elevator is connected to the open end of the feed pipe.

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