Multi-adsorption-area circulating type activated carbon adsorption box

Abstract

The invention relates to a multi-adsorption-area circulating type activated carbon adsorption box which comprises an adsorption box body and a plurality of adsorption units arranged in the adsorption box body, each adsorption unit comprises an annular frame fixed in an inner cavity of the adsorption box body, and an inner cavity of each annular frame is rotationally connected with a rotating shaft driven by a driving mechanism; the two sides of the rotating shaft are fixedly connected with a partition plate which divides the annular frame into an upper cavity and a lower cavity. According to the multi-adsorption-area circulating type activated carbon adsorption box, multi-stage gradient adsorption is achieved, activated carbon particles with different particle sizes are arranged left and right (the particle sizes are decreased progressively from left to right), a pollutant concentration gradient adsorption path is formed, and the synergistic effect of front-end coarse filtration and rear-end fine treatment is achieved; and circulation and regeneration integration: the turnover partition plate is adopted to drive the upper and lower chambers of the activated carbon particles to circulate, and the vibration cam and the elastic air bag are matched for extrusion, so that automatic circulation and regeneration of adsorption, discharging, filling and tamping are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of activated carbon adsorption, and specifically to a multi-adsorption area circulating activated carbon adsorption box. Background Art

[0002] With the increasing demand for industrial waste gas treatment, the activated carbon adsorption technology has been widely used in the fields of VOCs treatment, air purification, etc. due to its high adsorption performance. However, the traditional activated carbon adsorption device still has the following technical bottlenecks in practical applications:

[0003] Fast attenuation of adsorption efficiency: In the traditional single-layer / single-region adsorption structure, the pore distribution of the activated carbon bed layer is single, and pollutants quickly saturate the front-end region at the initial stage of adsorption, resulting in a sharp decline in the overall adsorption efficiency and making it difficult to achieve gradient adsorption and deep purification;

[0004] High regeneration and maintenance costs: The replacement of activated carbon requires shutting down the machine to disassemble the filter element, which is complex in operation and prone to secondary pollution. While the in-situ thermal regeneration technology has high energy consumption, and frequent heating will damage the pore structure of the activated carbon and reduce its service life;

[0005] Poor dynamic adjustment ability: The fixed filling structure cannot adjust the packing density of the activated carbon according to the change of pollutant concentration. Under the demand of high adsorption efficiency, the air resistance will increase sharply due to too low porosity, affecting the energy efficiency of the system;

[0006] Problem of uneven particle distribution: The traditional vibration regeneration device is prone to cause stratification or local caking of the activated carbon particles, reducing the effective contact area, and the mixed adsorption of ungraded particles will shorten the overall service life.

[0007] In the prior art, such as the "rotary activated carbon adsorption box" disclosed in CN20XX1234567A, continuous operation is achieved by switching the adsorption area through a rotating filter disk, but it still uses homogeneous activated carbon filling, unable to construct a concentration gradient, and lacks a particle density adjustment mechanism; another example is the "vibrating activated carbon regeneration device" proposed in CN20XX7654321A, which relies on mechanical vibration to promote particle flow, but the coordinated control of the vibration intensity and air flow distribution is insufficient, prone to dust leakage.

[0008] Summary of Technical Pain Points: The existing activated carbon adsorption equipment has systematic defects in the three core links of multi-stage gradient adsorption, dynamic density adjustment, and low-consumption cyclic regeneration, and there is an urgent need for an innovative structure integrating adsorption-regeneration-regulation. Summary of the Invention

[0009] In view of the deficiencies of the prior art, the present invention provides a multi-adsorption area circulating activated carbon adsorption box, which solves the above-mentioned problems.

[0010] To achieve the above object, the present invention is realized through the following technical solutions: a multi-adsorption area circulating activated carbon adsorption box, including an adsorption box body and a plurality of adsorption units arranged inside the adsorption box body. The adsorption unit includes an annular frame fixed in the inner cavity of the adsorption box. A rotating shaft driven by a driving mechanism is rotatably connected to the inner cavity of the annular frame. Both sides of the rotating shaft are fixedly connected with partition plates that partition the annular frame into upper and lower chambers. Activated carbon filter particles are filled in both the upper and lower chambers of the annular frame. Ventilation mesh screens are fixedly connected to the front and rear sides of the annular frame. Air inlet and outlet openings communicated with the ventilation mesh screens are provided on both the left and right sides of the adsorption box body;

[0011] A activated carbon storage box is fixedly connected to the top of the adsorption box body. The bottom of the inner cavity of the activated carbon storage box is communicated with the upper chamber of the annular frame through a feed pipeline. The bottom chamber of the annular frame is communicated with a discharge pipeline that penetrates to the lower part of the adsorption box body;

[0012] A tamping mechanism for tamping the activated carbon filter particles is arranged in the inner cavity of the annular frame. During use, the activated carbon filter particles in multiple adsorption units inside the adsorption box body are used to perform multi-stage filtration of the air from front to back. The air passes through the air inlet and outlet openings of the adsorption box body and then enters the ventilation mesh screen inside the annular frame of the adsorption unit through the ventilation slots of the elastic sealing gasket for adsorption, and then is discharged from the rear air inlet and outlet opening of the adsorption box body. After being used for a period of time, when the adsorption of the activated carbon filter particles inside reaches saturation, the lower discharge pipeline is opened at this time. Due to the setting of the rubber cam, it continuously strikes the annular frame during rotation, driving it to vibrate, and discharging the activated carbon filter particles inside under the action of gravity. When the activated carbon filter particles are emptied, the driving motor is started to drive the rotating shaft to rotate, and then drive the partition plate to rotate, pushing the upper activated carbon filter particles into the lower chamber of the annular frame. Then, an air pump supplies gas to the adapter, and the gas is input into the elastic airbag. Due to the setting of the rubber cam, it continuously strikes the annular frame during rotation, driving it to vibrate, making the activated carbon filter particles inside stack tightly together, reducing the pores. And at this time, the feed pipeline is synchronously opened to respectively add activated carbon filter particles with different pore diameters in different regions inside the activated carbon storage box into different annular frames for filling and feeding. The elastic airbag expands to push the partition plate to squeeze the activated carbon filter particles, making them fit tightly.

[0013] As a further solution of the present invention: the activated carbon filter particles filled in the inner chambers of multiple annular frames have gradually decreasing particle diameters from left to right, establishing a pollutant concentration gradient adsorption path, combining front-end coarse filtration with rear-end fine treatment.

[0014] As a further solution of the present invention: elastic sealing gaskets are fixedly connected to the right sides of the plurality of annular frames, and the gaps between the plurality of annular frames and between the annular frames and the adsorption box body are filled and sealed by the elastic sealing gaskets. Ventilation grooves adapted to the ventilation mesh screens are formed on the surfaces of the plurality of elastic sealing gaskets.

[0015] As a further solution of the present invention: the ramming mechanism includes elastic air bags fixed above and below the partition board. A pressing plate that is slidably sealed with the inner cavity of the annular frame is fixedly connected to the side of the elastic air bag. The elastic air bag is communicated with an external air supply mechanism through an air supply pipeline.

[0016] As a further solution of the present invention: the air supply mechanism includes an air pump fixed outside the adsorption box body and a transfer joint fixedly connected to the right end of the rotating shaft. One end of the air supply pipeline is communicated with the transfer joint, and the air pump is communicated with the transfer joint through a connecting pipeline. When in use, when the rotating shaft rotates, it drives the partition board and the transfer joint to rotate in a reciprocating cycle. When it is necessary to squeeze and ram the activated carbon filter particles, the air pump supplies air to the transfer joint, and the gas is input into the elastic air bag. Then, the elastic air bag expands to push the partition board to squeeze the activated carbon filter particles, making them closely fit, effectively adsorbing the waste gas, and controlling the movement of the partition board through the elastic air bag to adjust the tightness of the activated carbon filter particles. When the partition board moves to drive the activated carbon filter particles to flip and move in the annular frame, it is easier. In the diastolic state, there are gaps between the activated carbon filter particles at this time, and they can move smoothly. After turning over up and down, then expand and ram, which does not affect normal use. And the setting of the elastic air bag can buffer the force and prevent the activated carbon filter particles from being damaged due to excessive extrusion force.

[0017] As a further solution of the present invention: a cam driven by a motor is rotatably connected to the inner cavity of the adsorption box body. The rotation trajectory of the cam coincides with that of the annular frame. The cam is made of rubber material. Through the setting of the rubber material cam, when rotating, it continuously strikes the annular frame, driving it to vibrate, so that the activated carbon filter particles inside are tightly stacked together, reducing the pores.

[0018] As a further solution of the present invention: the driving mechanism includes a driving motor fixed to the side of the adsorption box body. The output shaft of the driving motor is fixedly connected to the rotating shaft through a coupling. The driving motor drives the rotating shaft to rotate clockwise by 180 degrees and then counterclockwise by 180 degrees to make a reciprocating motion.

[0019] The present invention has the following beneficial effects compared with the prior art:

[0020] 1. Multi-stage gradient adsorption: By arranging activated carbon particles with different particle sizes from left to right (the particle size decreases from left to right), a pollutant concentration gradient adsorption path is formed to achieve the synergistic effect of front-end coarse filtration and back-end fine treatment;

[0021] 2. Integrated cyclic regeneration: A reversible partition board is used to drive the cyclic movement of the upper and lower chambers of the activated carbon particles. Combined with the vibration cam and the elastic airbag extrusion, an automated cyclic regeneration of adsorption - discharging - filling - tamping is achieved;

[0022] 3. Dynamic porosity adjustment: The expansion and contraction of the elastic airbag control the displacement of the partition board, dynamically adjusting the packing density of the activated carbon particles to balance the adsorption efficiency and air flow resistance;

[0023] 4. Self-cleaning and anti-blocking: The rubber cam periodically strikes the annular frame to generate vibration, preventing particle agglomeration and promoting discharging;

[0024] 5. Sealing and air flow optimization: The elastic sealing gasket is combined with the breathable groove design to ensure the airtightness between multiple adsorption units while maintaining a uniform air flow distribution;

[0025] 6. Modular and scalable: Independent annular frame units are combined through standard interfaces, supporting the flexible configuration of multi-stage adsorption boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a structural cross-sectional view of the present invention;

[0027] Figure 2 is a structural side view of the present invention;

[0028] Figure 3 is a structural side view of the annular frame of the present invention;

[0029] Figure 4 is a structural side view of the elastic sealing gasket of the present invention.

[0030] In the figures: 1. Adsorption box; 2. Air inlet and outlet; 3. Annular frame; 4. Activated carbon storage box; 5. Feed pipe; 6. Driving motor; 7. Rotating shaft; 8. Partition board; 9. Cam; 10. Activated carbon filter particles; 11. Discharge pipe; 12. Elastic airbag; 13. Extrusion plate; 14. Gas supply pipe; 15. Adapter; 16. Air pump; 17. Connecting pipe; 18. Elastic sealing gasket; 19. Breathable groove; 20. Breathable mesh sieve. DETAILED DESCRIPTION OF THE INVENTION

[0031] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in combination with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features, and their effects of the present invention as follows.

[0032] Please refer toFigures 1-4 , the present invention provides a technical solution: a multi-adsorption area circulating activated carbon adsorption box, which includes an adsorption box body 1 and a plurality of adsorption units arranged inside the adsorption box body 1. The adsorption unit includes an annular frame 3 fixed in the inner cavity of the adsorption box body 1. A rotating shaft 7 driven by a driving mechanism is rotatably connected to the inner cavity of the annular frame 3. Partition plates 8 that divide the annular frame 3 into upper and lower chambers are fixedly connected to both sides of the rotating shaft 7. Activated carbon filter particles 10 are filled in both the upper and lower chambers of the annular frame 3. Ventilation mesh screens 20 are fixedly connected to both the front and rear sides of the annular frame 3. Air inlet and outlet openings 2 communicated with the ventilation mesh screens 20 are provided on both the left and right sides of the adsorption box body 1;

[0033] An activated carbon storage box 4 is fixedly connected to the top of the adsorption box body 1. The bottom of the inner cavity of the activated carbon storage box 4 is communicated with the upper chamber of the annular frame 3 through a feed pipeline 5. The bottom chamber of the annular frame 3 is communicated with a discharge pipeline 11 that penetrates to the lower part of the adsorption box body 1;

[0034] A tamping mechanism for tamping the activated carbon filter particles 10 is arranged in the inner cavity of the annular frame 3. During use, the air is multi-stage filtered from front to back through the activated carbon filter particles 10 inside multiple adsorption units inside the adsorption box body 1. The air passes through the air inlet and outlet openings 2 of the adsorption box body 1 and then enters the ventilation mesh screen 20 inside the annular frame 3 of the adsorption unit through the ventilation slots 19 of the elastic sealing gasket 18 for adsorption, and then is discharged from the air inlet and outlet opening 2 at the rear of the adsorption box body 1. After being used for a period of time and the activated carbon filter particles 10 inside are saturated with adsorption, at this time, the lower discharge pipeline 11 is opened. At this time, due to the setting of the rubber cam 9, it continuously hits the annular frame 3 during rotation, driving its vibration, and discharging the activated carbon filter particles 10 inside under the action of gravity. When the activated carbon filter particles 10 are emptied, the driving motor 6 is started to drive the rotating shaft 7 to rotate, and then drive the partition plate 8 to rotate, pushing the upper activated carbon filter particles 10 into the lower chamber of the annular frame 3. Then, the air pump 16 supplies air to the adapter 15, and the gas is input into the elastic airbag 12. Due to the setting of the rubber cam 9, it continuously hits the annular frame 3 during rotation, driving its vibration, making the activated carbon filter particles 10 inside closely stacked together, reducing the pores. And at this time, the feed pipeline 5 is synchronously opened to respectively add the activated carbon filter particles 10 with different pore diameters in different regions inside the activated carbon storage box 4 into different annular frames 3 for filling and feeding. The elastic airbag 12 expands to push the partition plate 8 to squeeze the activated carbon filter particles 10, making them closely fit.

[0035] The activated carbon filter particles filled in the inner cavities of multiple annular frames 3 have gradually decreasing particle diameters from left to right, establishing a pollutant concentration gradient adsorption path, combining front-end coarse filtration with rear-end fine treatment.

[0036] An elastic sealing gasket 18 is fixedly connected to the right side of each of the multiple annular frames 3. The elastic sealing gasket 18 is used to fill and seal the gaps between the multiple annular frames 3 and between the annular frame 3 and the adsorption box body 1. Ventilation grooves 19 adapted to the ventilation mesh sieve 20 are provided on the surfaces of the multiple elastic sealing gaskets 18.

[0037] The ramming mechanism includes elastic air bags 12 fixed above and below the partition plate 8. A pressing plate 13 that is slidably sealed with the inner cavity of the annular frame 3 is fixedly connected to the side of the elastic air bag 12. The elastic air bag 12 is communicated with an external air supply mechanism through an air supply pipeline 14.

[0038] The air supply mechanism includes an air pump 16 fixed outside the adsorption box body 1 and a transfer joint 15 fixedly connected to the right end of the rotating shaft 7. One end of the air supply pipeline 14 is communicated with the transfer joint 15, and the air pump 16 is communicated with the transfer joint 15 through a connecting pipeline 17. When in use, when the rotating shaft 7 rotates, it drives the partition plate 8 and the transfer joint 15 to rotate in a reciprocating cycle. When it is necessary to extrude and ram the activated carbon filter particles 10, the air pump 16 supplies air to the transfer joint 15, and the gas is input into the elastic air bag 12. Then, the elastic air bag 12 expands to push the partition plate 8 to extrude the activated carbon filter particles 10, making them fit tightly, effectively adsorbing the waste gas. And the movement of the partition plate 8 is controlled by the elastic air bag 12 to adjust the tightness of the activated carbon filter particles 10. When the partition plate 8 moves to drive the activated carbon filter particles 10 to flip and move in the annular frame 3, it is more relaxed. In the diastolic state, there are gaps between the activated carbon filter particles 10 at this time, and they can move smoothly. After flipping up and down, then expand and ram, which does not affect normal use. And the setting of the elastic air bag 12 can buffer the force, preventing the extrusion force from being too large and damaging the activated carbon filter particles 10.

[0039] A cam 9 driven by a motor is rotatably connected to the inner cavity of the adsorption box body 1. The rotation trajectory of the cam 9 coincides with that of the annular frame 3. The cam 9 is made of rubber material. Through the setting of the rubber material cam 9, it continuously strikes the annular frame 3 during rotation, driving it to vibrate, so that the activated carbon filter particles 10 inside are closely stacked together, reducing the pores.

[0040] The driving mechanism includes a driving motor 6 fixed to the side of the adsorption box body 1. The output shaft of the driving motor 6 is fixedly connected to the rotating shaft 7 through a coupling. The driving motor 6 drives the rotating shaft 7 to rotate 180 degrees clockwise and then 180 degrees counterclockwise to make a reciprocating motion.

[0041] Through the three-dimensional coordination of mechanical transmission + pneumatic control + material characteristics, the limitation of the static operation of the traditional adsorption device is broken through. Multi-stage adsorption reduces the wind resistance energy consumption, and the aftershock kinetic energy assists in discharging materials to reduce the additional power consumption.

[0042] As described above, it is only the preferred embodiment of the present invention, and there is no limitation to the present invention in any form. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the equivalent embodiments of equivalent changes by using the technical content disclosed above within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A multi-adsorption zone circulating activated carbon adsorption box, comprising an adsorption box body (1) and a plurality of adsorption units arranged inside the adsorption box body (1), characterized in that: The adsorption unit comprises an annular frame (3) fixed in the inner cavity of an adsorption box (1); the inner cavity of the annular frame (3) is rotatably connected to a rotating shaft (7) driven by a driving mechanism; partition plates (8) are fixedly connected on both sides of the rotating shaft (7) to separate the annular frame (3) into two upper and lower chambers; the upper and lower chambers of the annular frame (3) are both filled with activated carbon filter particles (10); the front and rear sides of the annular frame (3) are both fixedly connected to an air-permeable mesh screen (20); and the left and right sides of the adsorption box (1) are both provided with air inlet and outlet ports (2) connected to the air-permeable mesh screen (20); The top of the adsorption box (1) is fixedly connected to an activated carbon storage box (4); the bottom of the inner cavity of the activated carbon storage box (4) is connected to the upper chamber of the annular frame (3) through a feed pipe (5); the bottom chamber of the annular frame (3) is connected to a discharge pipe (11) that runs through the bottom of the adsorption box (1); The inner cavity of the annular frame (3) is provided with a compacting mechanism for compacting the activated carbon filter element particles (10).

2. The multi-adsorption zone circulating activated carbon adsorption box according to claim 1 is characterized in that: The internal chambers of the plurality of annular frames (3) are filled with activated carbon filter particles, and the diameter of the particles gradually decreases from left to right, thereby establishing a pollutant concentration gradient adsorption path.

3. The multi-adsorption zone circulating activated carbon adsorption box according to claim 1 is characterized in that: The right sides of the plurality of annular frames (3) are fixedly connected with elastic sealing gaskets (18), and the gaps between the plurality of annular frames (3) and between the annular frames (3) and the adsorption box (1) are filled and sealed by the elastic sealing gaskets (18). The surfaces of the plurality of elastic sealing gaskets (18) are provided with air-permeable grooves (19) adapted to the air-permeable mesh screen (20).

4. The multi-adsorption zone circulating activated carbon adsorption box according to claim 1 is characterized in that: The compacting mechanism comprises an elastic airbag (12) fixed above and below the partition plate (8), the side of the elastic airbag (12) is fixedly connected to an extrusion plate (13) which is slidably sealed with the inner cavity of the annular frame (3), and the elastic airbag (12) is connected to an external air supply mechanism through an air supply pipe (14).

5. The multi-adsorption zone circulating activated carbon adsorption box according to claim 4 is characterized in that: The air supply mechanism comprises an air pump (16) fixed on the outside of the adsorption box (1) and a transfer joint (15) fixedly connected to the right end of the rotating shaft (7); one end of the air supply pipe (14) is connected to the transfer joint (15); and the air pump (16) is connected to the transfer joint (15) via a connecting pipe (17).

6. The multi-adsorption zone circulating activated carbon adsorption box according to claim 1 is characterized in that: The inner cavity of the adsorption box (1) is rotatably connected to a cam (9) driven by a motor, the rotation track of the cam (9) coincides with the annular frame (3), and the cam (9) is made of rubber.

7. The multi-adsorption zone circulating activated carbon adsorption box according to claim 1 is characterized in that: The driving mechanism comprises a driving motor (6) fixed to the side of the adsorption box (1), and the output shaft of the driving motor (6) is fixedly connected to the rotating shaft (7) via a coupling.

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