Hydrogen peroxide oxidation tail gas adsorption device

Abstract

The invention relates to the technical field of tail gas adsorption, in particular to a hydrogen peroxide oxidation tail gas adsorption device which comprises a treatment box, a gas adsorption treatment mechanism is rotationally connected into the treatment box, side treatment boxes are arranged on the two sides of the treatment box, and drying and cooling mechanisms are arranged in the side treatment boxes; the lower side of the front end face of the treatment box communicates with an air inlet pipe, and the upper side of the rear end face of the treatment box communicates with an exhaust pipe. A double-shaft motor is fixed to the top of the treatment box, an air cylinder is fixed to the top of the double-shaft motor, an output shaft at the bottom of the double-shaft motor is in transmission connection with the gas adsorption treatment mechanism in the treatment box, and the top of the double-shaft motor communicates with the air cylinder. The air cylinder and the internal structure are designed to be matched with the side treatment box, so that the activated carbon plate in the filtering adsorption part can be purged under the non-stop operation state of the device, cooling and dehumidification of the activated carbon plate are realized, the service life of the activated carbon plate is prolonged, and the activated carbon plate is simple and convenient to mount and dismount.

Description

Technical Field

[0001] The invention relates to the technical field of tail gas treatment, in particular to a hydrogen peroxide oxidized tail gas adsorption device. Background Art

[0002] Hydrogen peroxide is a good oxidant. It is reduced to water and does not introduce impurities. It can be used to produce oxygen and sterilize. In nature, it only exists in trace amounts in rain, snow and the sap of some plants. Initially, hydrogen peroxide was only used in medicine and military industry, and gradually applied to a wide range of fields such as chemical synthesis, textiles, papermaking, environmental protection, food, medicine, metallurgy and agriculture. When hydrogen peroxide is used, its oxidation tail gas will be directly discharged to pollute the environment, so it is necessary to use a tail gas adsorption device to adsorb and recover it;

[0003] In the prior art, the utility model with the announcement number CN218741119U specifically discloses a hydrogen peroxide oxidation tail gas adsorption device, which can adsorb and intercept organic matter in the tail gas through the purification component to purify the tail gas, and the drying component can blow out the water in the activated carbon layer and cool the activated carbon layer to reduce the temperature to ensure that the activated carbon recovers a high adsorption capacity, and separates the organic solvent for production, and the detection component can timely measure and feedback the temperature and humidity, and cooperate with the programming operation of the PLC controller to realize the precise control of the drying component, better cool down and dehumidify the activated carbon layer, and improve the adsorption quality and its service life;

[0004] During use, the device blows the activated carbon layer dry through the drying component. This operation step requires the device to be shut down, which greatly affects the efficiency of exhaust gas treatment. Exhaust gas treatment is a complete system construction. When one of the treatment steps stops operating, the remaining treatment steps and devices need to be shut down before they can be operated. Restarting requires tedious debugging and inspection and maintenance processes, which greatly affects the exhaust gas treatment. Summary of the invention

[0005] The purpose of the present invention is to provide a hydrogen peroxide oxidation tail gas adsorption device. The present application designs a gas cylinder and an internal structure in conjunction with a side treatment box to purge the activated carbon plate in the filter adsorption component without stopping the device, thereby achieving cooling and dehumidification of the activated carbon plate, and improving the service life of the activated carbon plate. The installation and disassembly method of the activated carbon plate is simple and convenient, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a hydrogen peroxide oxidation tail gas adsorption device, comprising a treatment box, wherein a gas adsorption treatment mechanism is rotatably connected inside the treatment box, side treatment boxes are arranged on both sides of the treatment box, and a drying and cooling mechanism is arranged inside the side treatment box;

[0007] The lower side of the front end surface of the processing box is connected to an air inlet pipe, and the upper side of the rear end surface of the processing box is connected to an exhaust pipe;

[0008] A double-shaft motor is fixed on the top of the processing box, and a gas cylinder is fixed on the top of the double-shaft motor. The output shaft at the bottom of the double-shaft motor is transmission-connected to the gas adsorption processing mechanism inside the processing box, and the top of the double-shaft motor is connected to the gas cylinder.

[0009] The gas adsorption treatment mechanism comprises an activated carbon adsorption member rotatably connected in the treatment box, and the activated carbon adsorption member is designed as a columnar structure, with two sides located in the treatment box.

[0010] Preferably, a jet pipe is connected to the side of the measuring and processing box near the lower end surface, and a valve is built into the jet pipe. A metal pipe is fixed to the top of the measuring and processing box, and the other end of the pipe is connected to the gas cylinder.

[0011] Preferably, the filter adsorbent includes a fixing frame, and a hollow placement groove is opened on the outside of the fixing frame, an activated carbon plate is placed in the placement groove, and a slot is provided at the bottom of the activated carbon plate, a top cover is fixed on the top of the fixing frame, and a bottom cover is fixed on the bottom of the fixing frame, a plug-in block is fixed on the bottom cover at a position corresponding to the slot, and the top of the activated carbon plate is connected to the top cover by bolts.

[0012] Preferably, a connecting shaft is rotatably connected to a position inside the fixed frame in the processing box, and buffer plates are fixed at equal distances on the outer ring of the connecting shaft. The top of the connecting shaft passes through the top cover and the processing box and is fixed to the output shaft at the lower end of the dual-axis motor.

[0013] Preferably, an electromagnet is provided at the point where the connecting shaft and the top cover penetrate, and the electromagnet is rotatably connected to the top cover, the electromagnet is annularly sleeved on the outside of the connecting shaft, and the connecting shaft is made of magnetic metal.

[0014] Preferably, semiconductor refrigeration plates are embedded and connected at equal distances on the inner wall of the air cylinder, a pipe joint is provided on the outside of the air cylinder near the upper side, the top of the pipe is connected to the pipe joint, and a one-way valve is built into the pipe joint, and an air inlet is provided on the top of the outer rear side of the air cylinder, and a one-way valve is built into the air inlet.

[0015] Preferably, a reciprocating screw is rotatably connected inside the air cylinder, and an air plug plate is spirally connected to the outside of the reciprocating screw. The bottom of the reciprocating screw is magnetically fixed to the output shaft at the upper end of the double-axis motor through an electromagnet.

[0016] Preferably, a fixing plate is fixed to the inner wall of the side treatment box, and a plurality of nozzles connected to the pipeline are fixed at equal distances on the fixing plate.

[0017] Preferably, a shovel blade is fixed to the outside of the processing box, and the shovel blade is in contact with the surface of the filter adsorbent.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The treatment box designed in this application cooperates with the filter adsorbent to achieve double-layer filtration treatment of tail gas, and slow down the flow of the tail gas after preliminary filtration to facilitate secondary filtration treatment, thereby achieving the treatment effect of tail gas;

[0020] 2. This application designs an air cylinder and an internal structure in conjunction with a side treatment box to purge the activated carbon plates in the filter adsorbent without stopping the device, thereby cooling and dehumidifying the activated carbon plates, increasing the service life of the activated carbon plates, and the installation and disassembly of the activated carbon plates are simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is the overall structural view of the present invention;

[0023] Figure 2 It is a structural view of the filter adsorbent and the processing box of the present invention;

[0024] Figure 3 A structural view of the filter adsorbent of the present invention;

[0025] Figure 4 It is a cross-sectional top view of the filter adsorbent of the present invention;

[0026] Figure 5 This is a structural view of the activated carbon plate, the top cover and the bottom cover of the present invention;

[0027] Figure 6 A structural view of the gas cylinder of the present invention;

[0028] Figure 7 A structural view of the buffer sheet and the fixing frame of the present invention;

[0029] Figure 8 It is a cross-sectional structural view of the side processing box of the present invention;

[0030] Fig. 9 It is a top view of the filter adsorbent and the processing box of the present invention.

[0031] Description of reference numerals:

[0032] 1. Treatment box; 2. Air inlet pipe; 3. Jet pipe; 4. Side treatment box; 5. Pipeline; 6. Double-axis motor; 7. Air cylinder; 8. Filter adsorbent; 9. Top cover; 10. Fixed frame; 11. Activated carbon plate; 12. Connecting shaft; 13. Buffer plate; 14. Bottom cover; 15. Plug block; 16. Reciprocating screw rod; 17. Air plug plate; 18. Semiconductor refrigeration plate; 19. Pipeline interface; 20. Electromagnet; 21. Fixed plate; 22. Nozzle; 23. Shovel blade. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 9 , the present invention provides a technical solution:

[0035] A hydrogen peroxide oxidation tail gas adsorption device comprises a treatment box 1, wherein a gas adsorption treatment mechanism is rotatably connected inside the treatment box 1, side treatment boxes 1 are arranged on both sides of the treatment box 1, and a drying and cooling mechanism is arranged in the side treatment box 41;

[0036] The lower side of the front end surface of the processing box 1 is connected to an air inlet pipe 2, and the upper side of the rear end surface of the processing box 1 is connected to an exhaust pipe;

[0037] A double-axis motor 6 is fixed on the top of the processing box 1, and a gas cylinder 7 is fixed on the top of the double-axis motor 6. The output shaft at the bottom of the double-axis motor 6 is transmission-connected to the gas adsorption processing mechanism inside the processing box 1, and the top of the double-axis motor 6 is connected to the gas cylinder 7.

[0038] The gas adsorption treatment mechanism comprises an activated carbon adsorption member rotatably connected in the treatment box 1 , and the activated carbon adsorption member is designed as a columnar structure, with two sides located in the treatment box 1 .

[0039] The side of the measurement and treatment box 1 is connected to a jet pipe 3 near the lower end surface, and the jet pipe 3 has a built-in valve. The top of the measurement and treatment box 1 is connected to a metal pipe 5, and the other end of the pipe 5 is connected to an air cylinder 7.

[0040] The filter adsorbent 8 includes a fixing frame 10, and a hollow placement groove is opened on the outside of the fixing frame 10, an activated carbon plate 11 is placed in the placement groove, and a slot is provided at the bottom of the activated carbon plate 11, a top cover 9 is fixed on the top of the fixing frame 10, and a bottom cover 14 is fixed on the bottom of the fixing frame 10, a plug-in block 15 is fixed on the bottom cover 14 at a position corresponding to the slot, the top of the activated carbon plate 11 is connected to the top cover 9 by bolts, a connecting shaft 12 is rotatably connected to the position inside the fixing frame 10 in the processing box 1, and a buffer sheet 13 is fixed to the outer ring of the connecting shaft 12 at equal distances, the top of the connecting shaft 12 passes through the top cover 9 and the processing box 1 and is fixed to the lower output shaft of the dual-axis motor 6, an electromagnet 20 is provided at the penetration of the connecting shaft 12 and the top cover 9, and the electromagnet 20 is rotatably connected to the top cover 9, The electromagnet 20 is annularly sleeved on the outside of the connecting shaft 12, and the connecting shaft 12 is made of magnetic metal. The inner wall of the air cylinder 7 is equidistantly embedded with a semiconductor refrigeration plate 18. A pipe 5 joint is provided on the outside of the air cylinder 7 near the upper side. The top of the pipe 5 is connected to the pipe 5 joint, and a one-way valve is built into the pipe 5 joint. An air inlet is provided on the top of the outer rear side of the air cylinder 7, and a one-way valve is built into the air inlet. A reciprocating screw 16 is rotatably connected inside the air cylinder 7, and the external spiral transmission of the reciprocating screw 16 is connected to an air plug plate 17. The bottom of the reciprocating screw 16 is magnetically fixed to the upper output shaft of the dual-axis motor 6 through the electromagnet 20. A fixed plate 21 is fixed to the inner wall of the side processing box 41, and a number of nozzles 22 connected to the pipe 5 are fixed on the fixed plate 21 at equal distances.

[0041] At this time, the user controls the electromagnet 20 between the top cover 9 and the connecting shaft 12 to be fixed by magnetic attraction, and then the electromagnet 20 between the top and the reciprocating screw 16 is fixed by magnetic attraction. At this time, the double-axis motor 6 rotates slowly, driving the cylindrical filter adsorbent 8 to rotate and displace. At this time, the annularly distributed activated carbon plates 11 in the filter adsorbent 8 are rotated and displaced one by one to the inside of the side treatment box 41, and the air plug plate 17 connected to the reciprocating screw 16 with a spiral transmission at the top moves downward under the rotation of the reciprocating screw 16 to suck the outside air into the air cylinder 7 through the air inlet hole. When the air plug plate 17 moves upward, the compressed air cylinder 7 is transported to the nozzle 22 in the side treatment box 41 through the air pipe and purged toward the activated carbon plate 11 displaced to the side treatment box 41. When the outdoor air temperature can meet the purging and cooling requirements, there is no need to start the semiconductor refrigeration plate 18. When the outside air temperature is not met, it is necessary to start the semiconductor refrigeration plate 18 to assist in cooling the air inside the air cylinder 7. Finally, part of the purged air enters the treatment box 1 and is discharged through the exhaust pipe, and the other part is discharged through the jet pipe 3

[0042] Specifically, a shovel blade 23 is fixed to the outside of the processing box 1 , and the shovel blade 23 is in contact with the surface of the filter adsorbent 8 .

[0043] By adopting the above technical solution, the shovel blade 23 can further scrape and clean the impurities attached to the surface of the activated carbon plate 11 during the rotation of the filter adsorbent 8.

[0044] Working principle: When working, the valve in the jet pipe 3 is closed, the electromagnet 20 between the top of the dual-axis motor 6 and the reciprocating screw 16 is powered off, and then the user connects the exhaust gas supply pipe with the intake pipe 2 on the front side of the treatment box 1, and the exhaust gas enters the treatment box 1 through the intake pipe 2. Since the filter adsorbent 8 is designed in a columnar structure, the exhaust gas needs to pass through the filter adsorbent 8 at least twice before it can be discharged through the exhaust pipe on the rear side of the treatment box 1. The filter adsorbent 8 with a columnar structure can use its arc surface to buffer the gas when the exhaust gas initially contacts it, and finally pass through the activated carbon plate 11 for adsorption and filtration, enter the fixed frame 10, and contact the buffer sheet 13. At this time, the buffer sheet 13 is driven by the dual-axis motor 6 and the connecting shaft 12 to slowly rotate, further buffering the exhaust gas, and then the exhaust gas is buffered by the buffer sheet 13, and is further adsorbed and filtered by the activated carbon plate 11 on the rear side for a second time.

[0045] During the long-term exhaust gas treatment process of the activated carbon plate 11, the temperature of the activated carbon plate 11 will increase due to the heat of the exhaust gas itself. Excessive temperature will affect the exhaust gas adsorption and filtration ability of the activated carbon plate 11.

[0046] At this time, the user controls the electromagnet 20 between the top cover 9 and the connecting shaft 12 to be fixed by magnetic attraction, and then the electromagnet 20 between the top and the reciprocating screw 16 is fixed by magnetic attraction. At this time, the double-axis motor 6 rotates slowly, driving the cylindrical filter adsorbent 8 to rotate and displace. At this time, the annularly distributed activated carbon plates 11 in the filter adsorbent 8 rotate and displace one by one to the inside of the side treatment box 41, and the air plug plate 17 connected to the reciprocating screw 16 with a spiral transmission at the top moves downward under the rotation of the reciprocating screw 16 to suck the outside air through the air inlet hole to Inside the air cylinder 7, when the air plug plate 17 moves upward, the compressed air inside the air cylinder 7 is transported through the air pipe to the nozzle 22 in the side treatment box 41 and purged toward the activated carbon plate 11 moved to the side treatment box 41. When the outdoor air temperature can meet the purging and cooling requirements, there is no need to start the semiconductor refrigeration plate 18. When the outside air temperature does not meet the requirements, it is necessary to start the semiconductor refrigeration plate 18 to assist in cooling the air inside the air cylinder 7. Finally, part of the purged air enters the treatment box 1 and is discharged through the exhaust pipe, and the other part is discharged through the jet pipe 3.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydrogen peroxide oxidation tail gas adsorption device, comprising a treatment box (1), characterized in that: The processing box (1) is rotatably connected to a gas adsorption processing mechanism, side processing boxes (1) are arranged on both sides of the processing box (1), and a drying and cooling mechanism is arranged in the side processing box (4) (1); The lower side of the front end surface of the processing box (1) is connected to an air inlet pipe (2), and the upper side of the rear end surface of the processing box (1) is connected to an exhaust pipe; A double-shaft motor (6) is fixed on the top of the processing box (1), and a gas cylinder (7) is fixed on the top of the double-shaft motor (6); the output shaft at the bottom of the double-shaft motor (6) is in transmission connection with the gas adsorption processing mechanism inside the processing box (1), and the top of the double-shaft motor (6) is in communication with the gas cylinder (7); The gas adsorption treatment mechanism comprises an activated carbon adsorption component which is rotatably connected in the treatment box (1), and the activated carbon adsorption component is designed as a columnar structure with two sides located in the treatment box (1).

2. A hydrogen peroxide oxidation tail gas adsorption device according to claim 1, characterized in that: The side of the measurement and treatment box (1) is connected to an air jet pipe (3) near the lower end surface, and the air jet pipe (3) has a built-in valve. The top of the measurement and treatment box (1) is connected to a metal pipe (5) fixed thereto, and the other end of the pipe (5) is connected to an air cylinder (7).

3. A hydrogen peroxide oxidation tail gas adsorption device according to claim 2, characterized in that: The filter adsorbent (8) comprises a fixing frame (10), and the fixing frame (10) is provided with a hollow placement groove on the outside, an activated carbon plate (11) is placed in the placement groove, and a slot is provided at the bottom of the activated carbon plate (11), a top cover (9) is fixed to the top of the fixing frame (10), and a bottom cover (14) is fixed to the bottom of the fixing frame (10), a plug-in block (15) is fixed on the bottom cover (14) at a position corresponding to the slot, and the top of the activated carbon plate (11) is connected to the top cover (9) by bolts.

4. A hydrogen peroxide oxidation tail gas adsorption device according to claim 3, characterized in that: A connecting shaft (12) is rotatably connected to a position inside the fixing frame (10) in the processing box (1), and buffer plates (13) are fixed to the outer ring of the connecting shaft (12) at equal distances. The top of the connecting shaft (12) passes through the top cover (9) and the processing box (1) and is fixed to the output shaft at the lower end of the dual-axis motor (6).

5. A hydrogen peroxide oxidation tail gas adsorption device according to claim 4, characterized in that: An electromagnet (20) is provided at the point where the connecting shaft (12) and the top cover (9) penetrate, and the electromagnet (20) is rotatably connected to the top cover (9). The electromagnet (20) is annularly sleeved on the outside of the connecting shaft (12), and the connecting shaft (12) is made of magnetic metal.

6. A hydrogen peroxide oxidation tail gas adsorption device according to claim 5, characterized in that: Semiconductor cooling sheets (18) are embedded and connected to the inner wall of the air cylinder (7) at equal distances; a pipe (5) joint is provided on the outside of the air cylinder (7) near the upper side; the top of the pipe (5) is connected to the pipe (5) joint, and a one-way valve is built into the pipe (5) joint; an air inlet is provided on the top of the rear side of the outside of the air cylinder (7), and a one-way valve is built into the air inlet.

7. A hydrogen peroxide oxidation tail gas adsorption device according to claim 6, characterized in that: A reciprocating screw rod (16) is rotatably connected inside the air cylinder (7), and an air plug plate (17) is connected to the outside of the reciprocating screw rod (16) by screw transmission. The bottom of the reciprocating screw rod (16) is magnetically fixed to the output shaft at the upper end of the double-axis motor (6) through an electromagnet (20).

8. A hydrogen peroxide oxidation tail gas adsorption device according to claim 7, characterized in that: A fixing plate (21) is fixed to the inner wall of the side treatment box (4) (1), and a plurality of nozzles (22) connected to the pipeline (5) are fixed on the fixing plate (21) at equal intervals.

9. A hydrogen peroxide oxidation tail gas adsorption device according to claim 8, characterized in that: A shovel blade (23) is fixed to the outside of the processing box (1), and the shovel blade (23) is in contact with the surface of the filter adsorption component (8).

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