A multi-stage series adsorption and desorption device for treatment of volatile organic compounds in industrial exhaust gas
By introducing cleaning rollers and a spray system into a multi-stage series adsorption-desorption device, the problem of reduced filtration efficiency caused by impurities adhering to the filter screen surface is solved, and efficient waste gas treatment is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI PINGTAN IND CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-29
AI Technical Summary
After prolonged use, existing multi-stage series adsorption-desorption devices suffer from impurities adhering to the filter screen surface, leading to reduced filtration efficiency and impacting waste gas treatment efficiency.
A device was designed that includes a filter box, a spray box, an exhaust pipe, a diverter seat, a guide seat, a filter screen, a filter cotton plate, an adsorption plate, a cylinder, a connecting ear, a shaft, a push rod, and a cleaning roller. The cleaning roller automatically cleans the filter screen, and a water pump and a spray pipe are used to spray dust onto the exhaust gas.
It effectively prevents impurities from adhering to the filter screen surface, improves the efficiency of exhaust gas filtration, enhances the practicality of the device, and further improves the exhaust gas treatment effect through spray dust suppression treatment.
Smart Images

Figure CN224292866U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of industrial waste gas treatment technology, specifically a multi-stage series adsorption-desorption device for treating volatile organic compounds in industrial waste gas. Background Technology
[0002] Industrial waste gas refers to the general term for various pollutant-containing gases emitted into the air during fuel combustion and production processes within a factory premises. These waste gases include: carbon dioxide, carbon disulfide, hydrogen sulfide, fluorides, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (mist), lead, mercury, beryllium compounds, soot, and industrial dust. When released into the atmosphere, they pollute the air. These substances enter the human body through the respiratory tract via various pathways; some cause direct harm, while others accumulate and can further endanger human health. Multi-stage series adsorption-desorption devices are used to treat industrial waste gas.
[0003] Currently, most multi-stage series adsorption-desorption devices for treating volatile organic compounds in industrial waste gas require filtration, adsorption, and desorption processes when treating waste gas. However, when filtering waste gas, filter screens are used to adsorb and filter it out. But after a long period of use, the surface of the filter screens inevitably accumulates a lot of dust and other impurities. Moreover, the existing filter structure itself does not have a cleaning mechanism. Therefore, in the long run, it will affect the filtration efficiency and effect of the filter screens on waste gas, resulting in the waste gas still containing a lot of impurities after treatment, and the overall practicality is poor.
[0004] Therefore, this utility model provides a multi-stage series adsorption-desorption device for the treatment of volatile organic compounds in industrial waste gas. Utility Model Content
[0005] To overcome the shortcomings of existing technologies and solve the problem of reduced filtration efficiency after prolonged use of the filtration structure in current adsorption-desorption devices, this utility model proposes a multi-stage series adsorption-desorption device for the treatment of volatile organic compounds in industrial waste gas.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A multi-stage series adsorption-desorption device for treating volatile organic compounds in industrial waste gas, comprising a filter box, a spray box distributed on one side of the filter box, an exhaust pipe fixedly connected to the top center of the filter box, a flow divider fixedly provided in the inner cavity of the filter box, and a flow guide seat distributed below the flow divider seat, a flow divider groove opened on the inner side of the flow guide seat, a filter screen distributed below the flow guide seat, a filter cotton plate distributed below the filter screen, an adsorption plate distributed below the filter cotton plate, a cylinder fixedly provided on the side wall of the filter box, and a connecting ear connected to the output end of the cylinder, a shaft penetrating through the middle of one side of the connecting ear, a push rod fixedly connected to one end of the shaft, a cleaning roller connected to the other end of the push rod, and a torsion spring sleeved on the outer side of one end of the shaft.
[0007] Furthermore, an air supply pipe is fixedly connected to one side of the bottom of the filter box, a water storage chamber is opened on the inner side of the top of the spray box, a water pump is connected to one side of the top of the spray box, and a water pump is connected to one end of the water pump. The output end of the water pump is connected to a water supply pipe, and the other end of the water supply pipe is connected to a diversion pipe. The end of the diversion pipe away from the water supply pipe is connected to a spray pipe, and an atomizing nozzle is fixedly installed at the bottom of the spray pipe.
[0008] Furthermore, a first air pipe is fixedly connected to the back of the spray box, and an adsorption cylinder is connected to the other end of the first air pipe. A second air pipe is connected to the bottom of the adsorption cylinder, and a desorption cylinder is connected to the other end of the second air pipe.
[0009] Furthermore, the diversion channels are equidistantly distributed along the center point of the guide seat, and the diversion channels and the guide seat form an integrated structure.
[0010] Furthermore, one end of the push rod is rotatably connected to the connecting ear via a shaft, and the shaft extends through the inside of the connecting ear to the other side of the connecting ear.
[0011] Furthermore, the cleaning roller is rotatably connected to the push rod via a bearing seat, and the outer surface of the cleaning roller is equidistantly distributed with arc-shaped protrusions.
[0012] Furthermore, the water pumping pipe extends through the side wall of the spray tank into the water storage chamber, and the other end of the water pumping pipe is connected to the water supply pipe.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The multi-stage series adsorption-desorption device for treating volatile organic compounds in industrial waste gas described in this utility model, through the structure of gas pipe, connecting lug, shaft, push rod and cleaning roller, can facilitate the subsequent effective cleaning of the filter screen, preventing the filter screen from having a lot of impurities attached to its surface after long-term use, which would affect the subsequent filtration efficiency and effect of industrial waste gas, and thus making it more practical.
[0015] 2. The multi-stage series adsorption-desorption device for treating volatile organic compounds in industrial waste gas described in this utility model, through the setting of water pipes, water pumps and spray pipes, can conveniently and effectively spray dust suppression treatment on the filtered industrial waste gas, improve the treatment efficiency of industrial waste gas, and effectively remove particulate matter mixed in the waste gas. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model;
[0019] Figure 3 This is a side view of the cleaning roller structure in this utility model;
[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the filter box in this utility model;
[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the spray box in this utility model.
[0022] In the diagram: 1. Filter box; 2. Spray box; 3. Air extraction pipe; 4. Diverter seat; 5. Guide seat; 6. Diverter groove; 7. Filter screen; 8. Filter cotton plate; 9. Adsorption plate; 10. Cylinder; 11. Connecting ear; 12. Shaft; 13. Push rod; 14. Cleaning roller; 15. Torsion spring; 16. Air supply pipe; 17. Water storage chamber; 18. Water extraction pipe; 19. Water pump; 20. Water supply pipe; 21. Diverter pipe; 22. Spray pipe; 23. Atomizing nozzle; 24. First air pipe; 25. Adsorption cylinder; 26. Second air pipe; 27. Desorption cylinder. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] Example 1:
[0025] like Figures 1 to 5As shown, this utility model discloses a multi-stage series adsorption-desorption device for treating volatile organic compounds in industrial waste gas. It includes a filter box 1, a door rotatably connected to the front surface of the filter box 1, and the door and filter box 1 are sealably connected. A spray box 2 is distributed on one side of the filter box 1. An exhaust pipe 3 is fixedly connected to the top center of the filter box 1. A flow divider seat 4 is fixedly provided in the inner cavity of the filter box 1, and a guide seat 5 is distributed below the flow divider seat 4. A flow divider groove 6 is opened on the inner side of the guide seat 5. A filter screen 7 is distributed below the guide seat 5, and a filter cotton plate 8 is distributed below the filter screen 7. An adsorption plate 9 is distributed below the filter cotton plate 8. A cylinder 10 is fixedly provided on the side wall of the filter box 1, and a connecting ear 11 is connected to the output end of the cylinder 10. A shaft 12 passes through the middle of one side of the connecting ear 11, and a push rod 13 is fixedly connected to one end of the shaft 12. A cleaning roller 14 is connected to the other end of the push rod 13, and a torsion spring 15 is sleeved on the outer side of one end of the shaft 12.
[0026] During operation, industrial waste gas is introduced into the inner side of filter box 1 through the extraction pipe 3. The waste gas then flows along the inclined surface of the diversion seat 4, undergoing simple diversion. After diversion, the waste gas flows along the inclined surface inside the guide seat 5, passing through multiple diversion channels 6 for further air diversion. The diverted air then passes through the filter screen 7 for filtration and purification. The treated waste gas then passes through the filter cotton plate 8 and adsorption plate 9, effectively filtration and purification. When a large amount of powder adheres to the surface of the filter screen 7... When dust and impurities are removed, cylinder 10 operates to push connecting ear 11, which in turn pushes shaft 12, causing shaft 12 to push push rod 13 connected to one end. At this time, push rod 13 pushes cleaning roller 14, causing cleaning roller 14 to move along the upper surface of filter screen 7. This effectively cleans the surface of filter screen 7 using multiple arc-shaped protrusions evenly distributed on the outer surface of cleaning roller 14, preventing excessive impurities from adhering to the surface of filter screen 7 and affecting subsequent filtration and purification of industrial waste gas. At the same time, when push rod 13 drives cleaning roller 14 to move, shaft 12 rotates along connecting ear 11, thereby deforming torsion spring 15. The reverse force generated by the deformation of torsion spring 15 facilitates the subsequent cleaning of cleaning roller 14, ensuring it always adheres to the upper surface of filter screen 7 for better cleaning.
[0027] Furthermore, an air supply pipe 16 is fixedly connected to one side of the bottom of the filter box 1, a water storage chamber 17 is opened on the inner side of the top of the spray box 2, a water pumping pipe 18 is connected to one side of the top of the spray box 2, and a water pump 19 is connected to one end of the water pumping pipe 18. The output end of the water pump 19 is connected to a water supply pipe 20, and a diversion pipe 21 is connected to the other end of the water supply pipe 20. A spray pipe 22 is connected to the end of the diversion pipe 21 away from the water supply pipe 20, and an atomizing nozzle 23 is fixedly provided at the bottom of the spray pipe 22. Multiple atomizing nozzles 23 are provided, and multiple atomizing nozzles 23 are equidistantly distributed at the bottom of the spray pipe 22. The spray pipe 22 is equidistantly distributed on the inner side of the spray box 2.
[0028] During operation, the industrial waste gas, after preliminary filtration, is input into the inner side of the spray box 2 through the gas supply pipe 16. At this time, the water pump 19 works to draw the spray water stored in the water storage chamber 17 into the inner side of the water pumping pipe 18, and then input it into the water supply pipe 20 through the water pumping pipe 18. Then, under the action of the water supply pipe 20, it is input into the inner side of the diversion pipe 21, and is diverted through the diversion pipe 21. The spray water after diversion is input into multiple spray pipes 22, which are convenient for subsequent spraying through multiple atomizing nozzles 23, so as to perform spray dust suppression treatment on the filtered industrial waste gas.
[0029] Furthermore, a first air pipe 24 is fixedly connected to the back of the spray box 2, and the other end of the first air pipe 24 is connected to an adsorption cylinder 25. The first air pipe 24 passes through the back of the spray box 2 and is connected to the inside of the spray box 2. A second air pipe 26 is connected to the bottom of the adsorption cylinder 25, and the other end of the second air pipe 26 is connected to a desorption cylinder 27.
[0030] During operation, the industrial waste gas after being filtered and sprayed is input into the inside of the adsorption cylinder 25 through the first gas pipe 24. The adsorption structure inside the adsorption cylinder 25 is then used to further adsorb the industrial waste gas. The adsorbed waste gas is then input into the desorption cylinder 27 through the second gas pipe 26, where the desorption cylinder 27 is used for the final desorption treatment of the industrial waste gas.
[0031] Furthermore, the flow dividers 6 are equidistantly distributed along the center point of the flow guide seat 5, and the flow dividers 6 and the flow guide seat 5 form an integrated structure;
[0032] During operation, since multiple diversion grooves 6 are equidistantly distributed along the center point on the upper surface of the guide seat 5, the multiple diversion grooves 6 can be used to facilitate the subsequent effective diversion treatment of exhaust gas.
[0033] Furthermore, one end of the push rod 13 is rotatably connected to the connecting ear 11 via the shaft 12, and the shaft 12 extends through the inside of the connecting ear 11 to the other side of the connecting ear 11.
[0034] During operation, when the cylinder 10 pushes the connecting ear 11, the connecting ear 11 will cause the shaft 12 to push the push rod 13, which in turn will cause the push rod 13 to drive the cleaning roller 14 to move.
[0035] Furthermore, the cleaning roller 14 is rotatably connected to the push rod 13 via a bearing seat, and the outer surface of the cleaning roller 14 is equidistantly distributed with arc-shaped protrusions.
[0036] During operation, when the push rod 13 is pushed by the connecting ear 11, it will push the cleaning roller 14, thereby causing the cleaning roller 14 to move along the upper surface of the filter screen 7 and use the arc-shaped protrusions evenly distributed on its outer surface to clean the filter screen 7.
[0037] Furthermore, the water pumping pipe 18 extends through the side wall of the spray box 2 into the water storage chamber 17, and the other end of the water pumping pipe 18 is connected to the water supply pipe 20.
[0038] During operation, since the two ends of the pumping pipe 18 are connected to the water storage chamber 17 and the water delivery pipe 20 respectively, when the water pump 19 is working, it will pump the water in the water storage chamber 17 into the pumping pipe 18, and then input it into the inside of the water delivery pipe 20 through the pumping pipe 18.
[0039] Working principle: Industrial waste gas is introduced into the inner side of filter box 1 through the extraction pipe 3. The waste gas then flows along the inclined surface of the diversion seat 4, undergoing simple diversion treatment. After diversion, the waste gas flows along the inclined surface inside the guide seat 5, passing through multiple diversion channels 6. These channels further divert the air, which then passes through the filter screen 7 for filtration and purification. The treated waste gas then passes through the filter cotton plate 8. The industrial waste gas is effectively filtered and purified by the combination of filter cotton plate 8 and adsorption plate 9. After preliminary filtration, the industrial waste gas is input into the inner side of the spray box 2 through the gas delivery pipe 16. At this time, the water pump 19 works to draw the spray water stored in the water storage chamber 17 into the inner side of the water pumping pipe 18, and then input into the water delivery pipe 20 through the water pumping pipe 18. Then, under the action of the water delivery pipe 20, it is input into the inner side of the diversion pipe 21, and then diverted through the diversion pipe 21. The diverted spray water is then input into multiple spray pipes 22, which are convenient for subsequent spraying through multiple atomizing nozzles 23, thereby achieving the desired effect. The filtered industrial waste gas is subjected to spray dust suppression treatment. The waste gas is then fed into the inner side of the adsorption cylinder 25, where its internal adsorption structure further adsorbs it. The adsorbed waste gas then passes through the second gas pipe 26 into the desorption cylinder 27 for final desorption. This process effectively reduces dust from the filtered industrial waste gas. When a significant amount of dust and impurities adhere to the surface of the filter screen 7, the cylinder 10 activates, pushing the connecting ear 11. The connecting ear 11 then pushes the shaft 12, which in turn pushes the push rod 13 connected to one end of the shaft. At this time, push rod 13 will push cleaning roller 14 and make cleaning roller 14 move along the upper surface of filter screen 7. The multiple arc-shaped protrusions evenly distributed on the outer surface of cleaning roller 14 will effectively clean the surface of filter screen 7, preventing the surface of filter screen 7 from being covered with too many impurities, which would affect the subsequent filtration and purification of industrial waste gas. At the same time, when push rod 13 drives cleaning roller 14 to move, shaft 12 will rotate along connecting lug 11, thereby realizing the deformation of torsion spring 15. The reverse force generated by the deformation of torsion spring 15 can make it easy to keep cleaning roller 14 always in contact with the upper surface of filter screen 7, which is convenient for better cleaning.
[0040] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A multi-stage series adsorption-desorption device for treating volatile organic compounds in industrial waste gas, characterized in that, The system includes a filter box (1), with a spray box (2) distributed on one side of the filter box (1). An air extraction pipe (3) is fixedly connected to the top center of the filter box (1). A flow divider seat (4) is fixedly provided inside the filter box (1), and a flow guide seat (5) is distributed below the flow divider seat (4). A flow divider groove (6) is opened on the inner side of the flow guide seat (5). A filter screen (7) is distributed below the flow guide seat (5), and a filter cotton plate (8) is distributed below the filter screen (7). Below the filter cotton plate (8) are adsorption plates (9). A cylinder (10) is fixedly installed on the side wall of the filter box (1), and the output end of the cylinder (10) is connected to a connecting ear (11). A shaft (12) passes through the middle of one side of the connecting ear (11), and a push rod (13) is fixedly connected to one end of the shaft (12). A cleaning roller (14) is connected to the other end of the push rod (13), and a torsion spring (15) is sleeved on the outer side of one end of the shaft (12).
2. The multi-stage series adsorption-desorption device for treating volatile organic compounds in industrial waste gas according to claim 1, characterized in that, An air supply pipe (16) is fixedly connected to one side of the bottom of the filter box (1). A water storage chamber (17) is opened on the inner side of the top of the spray box (2). A water pumping pipe (18) is connected to one side of the top of the spray box (2). A water pump (19) is connected to one end of the water pumping pipe (18). A water supply pipe (20) is connected to the output end of the water pump (19). A diversion pipe (21) is connected to the other end of the water supply pipe (20). A spray pipe (22) is connected to the end of the diversion pipe (21) away from the water supply pipe (20). An atomizing nozzle (23) is fixedly provided at the bottom of the spray pipe (22).
3. The multi-stage series adsorption-desorption device for treating volatile organic compounds in industrial waste gas according to claim 1, characterized in that, The back of the spray box (2) is fixedly connected to a first air pipe (24), and the other end of the first air pipe (24) is connected to an adsorption cylinder (25). The bottom of the adsorption cylinder (25) is connected to a second air pipe (26), and the other end of the second air pipe (26) is connected to a desorption cylinder (27).
4. The multi-stage series adsorption-desorption device for treating volatile organic compounds in industrial waste gas according to claim 1, characterized in that, The diversion channels (6) are equidistantly distributed along the center point of the guide seat (5), and the diversion channels (6) and the guide seat (5) form an integrated structure.
5. A multi-stage series adsorption-desorption device for treating volatile organic compounds in industrial waste gas according to claim 1, characterized in that, One end of the push rod (13) is rotatably connected to the connecting ear (11) via a shaft (12), and the shaft (12) extends through the inside of the connecting ear (11) to the other side of the connecting ear (11).
6. The multi-stage series adsorption-desorption device for treating volatile organic compounds in industrial waste gas according to claim 1, characterized in that, The cleaning roller (14) is rotatably connected to the push rod (13) through the bearing seat, and the outer surface of the cleaning roller (14) is equidistantly distributed with arc-shaped protrusions.
7. A multi-stage series adsorption-desorption device for treating volatile organic compounds in industrial waste gas according to claim 2, characterized in that, The water pumping pipe (18) extends through the side wall of the spray box (2) into the water storage chamber (17), and the other end of the water pumping pipe (18) is connected to the water supply pipe (20).