Adsorption and concentration device for VOCs waste gas
By designing a VOCs exhaust gas adsorption and concentration device with desorption components, deep adsorption is used to perform zeolite molecular sieve and desorption is achieved through catalytic combustion, the problem of insufficient desorption function of zeolite molecular sieve in the prior art is solved, and the filtration effect and equipment life are improved.
Patent Information
- Application Number
- CN202421858736.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In the existing VOCs exhaust gas treatment technology, the desorption function of zeolite molecular sieve is insufficient, which affects its adsorption efficiency and service life.
An adsorption and concentration device for VOCs exhaust gas is designed. The rotor is driven by driving the rotor, and the VOCs exhaust gas is deeply adsorbed by multiple zeolite molecular sieves. The filter substance is blown into the catalytic combustion equipment through the recovery channel for catalytic combustion, so as to achieve desorption of the filter substance.
It effectively improves the filtration effect of VOCs exhaust gas and the service life of zeolite molecular sieve, and realizes deep filtration and catalytic combustion.
Smart Images
Figure CN222889619U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of VOCs waste gas treatment, in particular to an adsorption and concentration device for VOCs waste gas. Background Art
[0002] VOCs, as a major atmospheric pollutant, started late in my country's governance. The market entry threshold is low, various waste gas treatment technologies are diverse, and equipment and devices are of varying quality. Among them, zeolite is an emerging material that is widely used in industry, agriculture, national defense and other departments, and its uses are constantly being explored. Zeolite is used as an ion exchanger, adsorption separation agent, desiccant, catalyst, cement mixing material, and zeolite molecular sieve can be used as a key equipment for adsorption and concentration treatment of VOCs organic waste gas in enterprises.
[0003] In the treatment process of VOCs waste gas, the desorption function of zeolite molecular sieve is also very important. If the zeolite molecular sieve does not have this desorption function, it will greatly affect the adsorption efficiency of the zeolite over time and directly affect the service life of the zeolite. For this reason, we propose an adsorption and concentration device for VOCs waste gas. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an adsorption and concentration device for VOCs waste gas. When in use, the VOCs waste gas is introduced into the filter box through the air inlet pipe, and is preliminarily filtered through the auxiliary filter component, and enters the adsorption box under the action of the connecting pipe. At the same time, the driving component drives the first rotating shaft to rotate, and the rotation of the first rotating shaft drives the rotation of the drum. The rotation of the drum utilizes the multiple zeolite molecular sieves on the drum to deeply adsorb the VOCs waste gas, and when the drum rotates to the other side, the filter material on the zeolite molecular sieve is blown into the catalytic combustion equipment through the desorption component through the recovery channel, and the filter material is catalytically burned by the catalytic combustion equipment, and the filtered gas is discharged and recovered through the induced draft fan, the air suction port and the installation pipe. Therefore, the device can not only deeply filter the VOCs waste gas and catalytically burn the filter material, but also effectively desorb the filter material from the zeolite molecular sieve, thereby improving the filtering effect of the VOCs waste gas and the service life of the zeolite, and can effectively solve the problems in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a VOCs waste gas adsorption and concentration device, including an adsorption box and a filter box;
[0006] A connecting pipe is installed on the left side of the adsorption box, the left end of the connecting pipe is connected to the air outlet of the filter box, an air inlet pipe is installed on the left air inlet of the filter box, an auxiliary filter assembly is arranged in the filter box, an air outlet pipe is installed on the upper part of the adsorption box, an induced draft fan is installed on the upper part of the air outlet pipe, and an air suction port is installed on the lower end of the air outlet pipe, and the air suction port is in a trumpet shape;
[0007] A mounting plate is installed at the lower part of the interior of the adsorption box, and a first rotating shaft is rotatably installed on the mounting plate, a rotating drum is installed at the upper end of the first rotating shaft, and a plurality of grooves are evenly opened on the upper surface of the rotating drum, and zeolite molecular sieves are arranged in the grooves, and the grooves correspond to the zeolite molecular sieves one by one. A recovery channel is installed on the right side of the adsorption box, and a bottom plate is installed on the right side of the adsorption box, and a catalytic combustion device is installed on the bottom plate. The air inlet of the catalytic combustion device is connected to the right end of the recovery channel, and the air outlet of the catalytic combustion device is installed with a mounting pipe, the other end of the mounting pipe is penetrated through the adsorption box, and the end of the mounting pipe is connected to the outlet pipe, a desorption assembly is installed on the right side of the interior of the adsorption box, and a driving assembly is installed at the bottom of the adsorption box, and the driving assembly is connected to the first rotating shaft.
[0008] Furthermore, the desorption assembly includes an L-shaped bracket installed on the right side of the adsorption box, an electric heating plate is installed in the L-shaped bracket, the upper end of the first rotating shaft is located inside the drum, a second bevel gear is installed on the upper end of the first rotating shaft, a mounting bracket is installed on the inner top surface of the adsorption box, a second rotating shaft is rotatably installed on the right side of the lower end of the mounting bracket, a first bevel gear is installed on the second rotating shaft, the first bevel gear and the second bevel gear are meshed and connected, a plurality of fan blades are installed on the right end of the second rotating shaft, and the fan blades, the electric heating plate and the recovery channel correspond horizontally. When the first rotating shaft rotates to drive the second bevel gear to rotate, the second bevel gear rotates to drive the first bevel gear to rotate, the first bevel gear rotates to drive the second rotating shaft to rotate, and the second rotating shaft rotates to drive the fan blades to rotate, the wind force brought by the rotation of the fan blades is used to desorb the filtered material, and at the same time, heating the filtered material with the electric heating plate controlled by the temperature controller can improve the desorption efficiency and desorption effect of the filtered material.
[0009] Furthermore, the driving assembly includes a motor bracket installed on the inner bottom surface of the adsorption box, a motor is installed on the motor bracket, the output shaft of the motor is connected to the lower end of the first rotating shaft through a coupling, and the input end of the motor is electrically connected to the output end of the external controller. The motor is controlled by the external controller, and the motor drives the first rotating shaft to rotate, thereby completing the rotation of the first rotating shaft by electric power.
[0010] Furthermore, the auxiliary filter assembly includes a slide rail opened on the right side of the filter box, an activated carbon board bracket is slidably installed in the slide rail, and an activated carbon board is installed in the activated carbon board bracket. The VOCs exhaust gas is initially filtered by the activated carbon board, and the activated carbon board bracket can be installed and removed by the slide rail, which is convenient for cleaning the activated carbon board to improve the filtering effect of the activated carbon board.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: when the VOCs waste gas adsorption and concentration device is in use, the VOCs waste gas is introduced into the filter box through the air inlet pipe, and is preliminarily filtered through the auxiliary filter component, and enters the adsorption box under the action of the connecting pipe. At the same time, the driving component drives the first rotating shaft to rotate, and the rotation of the first rotating shaft drives the rotation of the drum. The rotation of the drum utilizes the multiple zeolite molecular sieves on the drum to deeply adsorb the VOCs waste gas, and when the drum rotates to the other side, the filtrate on the zeolite molecular sieve is blown into the catalytic combustion equipment through the desorption component through the recovery channel, and the catalytic combustion equipment is used to catalytically burn the filtrate, and the filtered gas is discharged and recovered through the induced draft fan, the air suction port and the installation pipe. Therefore, the device can not only deeply filter the VOCs waste gas and catalytically burn the filtrate, but also effectively desorb the filtrate from the zeolite molecular sieve, thereby improving the filtering effect of the VOCs waste gas and the service life of the zeolite. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;
[0014] Figure 3 It is a partial enlarged structural schematic diagram of point A of the utility model.
[0015] In the figure: 1 adsorption box, 2 induced draft fan, 3 air inlet pipe, 4 filter box, 5 activated carbon plate, 6 activated carbon plate bracket, 7 outlet pipe, 8 air suction port, 9 connecting pipe, 10 motor bracket, 11 motor, 12 bottom plate, 13 drum, 14 zeolite molecular sieve, 15 recovery channel, 16 catalytic combustion equipment, 17 mounting bracket, 18 L-shaped bracket, 19 mounting pipe, 20 electric heating plate, 21 mounting plate, 22 first rotating shaft, 23 second rotating shaft, 24 first bevel gear, 25 second bevel gear, 26 fan blade. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] See also Figure 1-3 , This embodiment provides a technical solution: a VOCs waste gas adsorption and concentration device, including an adsorption box 1 and a filter box 4;
[0018] A connecting pipe 9 is installed on the left side of the adsorption box 1, and the left end of the connecting pipe 9 is connected to the air outlet of the filter box 4. An air inlet pipe 3 is installed on the left air inlet of the filter box 4. An auxiliary filter assembly is arranged in the filter box 4. An air outlet pipe 7 is installed on the upper part of the adsorption box 1. An induced draft fan 2 is installed on the upper part of the air outlet pipe 7. An air suction port 8 is installed on the lower end of the air outlet pipe 7. The air suction port 8 is in the shape of a trumpet.
[0019] A mounting plate 21 is installed at the lower part of the interior of the adsorption box 1, and a first rotating shaft 22 is rotatably installed on the mounting plate 21. A rotating drum 13 is installed at the upper end of the first rotating shaft 22. A plurality of grooves are evenly opened on the upper surface of the rotating drum 13, and zeolite molecular sieves 14 are arranged in the grooves. The grooves correspond to the zeolite molecular sieves 14 one by one. A recovery channel 15 is installed on the right side of the adsorption box 1. A bottom plate 12 is installed on the right side of the adsorption box 1. A catalytic combustion device 16 is installed on the bottom plate 12. The air inlet of the catalytic combustion device 16 is connected to the right end of the recovery channel 15. A mounting pipe 19 is installed at the air outlet of the catalytic combustion device 16. The other end of the mounting pipe 19 is passed through the adsorption box 1, and the end of the mounting pipe 19 is connected to the outlet pipe 7. A desorption component is installed on the right side of the interior of the adsorption box 1, and a driving component is installed at the bottom of the adsorption box 1, and the driving component is connected to the first rotating shaft 22.
[0020] When in use, the VOCs waste gas is introduced into the filter box 4 through the air inlet pipe 3, and is initially filtered through the auxiliary filter component, and enters the adsorption box 1 under the action of the connecting pipe 9. At the same time, the driving component works to drive the first rotating shaft 22 to rotate, and the rotation of the first rotating shaft 22 drives the rotating drum 13 to rotate. The rotation of the rotating drum 13 uses the multiple zeolite molecular sieves 14 on the rotating drum 13 to deeply adsorb the VOCs waste gas, and when the rotating drum 13 rotates to the other side, the filter on the zeolite molecular sieve 14 is blown into the catalytic combustion equipment 16 through the desorption component through the recovery channel 15, and the filter is catalytically burned by the catalytic combustion equipment 16, and the filtered gas is discharged and recovered through the induced draft fan 2, the air inlet 8 and the installation pipe 19. Therefore, the device can not only deeply filter the VOCs waste gas and catalytically burn the filter, but also effectively desorb the filter from the zeolite molecular sieve 14, thereby improving the filtering effect of the VOCs waste gas and the service life of the zeolite.
[0021] The desorption assembly includes an L-shaped bracket 18 installed on the right side inside the adsorption box 1, an electric heating plate 20 is installed in the L-shaped bracket 18, the upper end of the first rotating shaft 22 is located inside the rotating drum 13, and the upper end of the first rotating shaft 22 is installed with a second bevel gear 25. The inner top surface of the adsorption box 1 is installed with a mounting bracket 17, and the lower end of the mounting bracket 17 is rotatably installed with a second rotating shaft 23 on the right side, and a first bevel gear 24 is installed on the second rotating shaft 23. The first bevel gear 24 and the second bevel gear 25 are meshed and connected, and a plurality of fan blades 26 are installed on the right end of the second rotating shaft 23, and the fan blades 26, the electric heating plate 20 and the recovery channel 15 correspond horizontally. When the first rotating shaft 22 rotates, it drives the second bevel gear 25 to rotate, the second bevel gear 25 rotates, it drives the first bevel gear 24 to rotate, the first bevel gear 24 rotates, it drives the second rotating shaft 23 to rotate, the second rotating shaft 23 drives the fan blades 26 to rotate, and the wind force brought by the rotation of the fan blades 26 is used to desorb the filtered material. At the same time, the electric heating plate 20 controlled by the temperature controller heats the filtered material to improve the desorption efficiency and desorption effect of the filtered material.
[0022] The driving assembly includes a motor bracket 10 installed on the inner bottom surface of the adsorption box 1, and a motor 11 is installed on the motor bracket 10. The output shaft of the motor 11 is connected to the lower end of the first rotating shaft 22 through a coupling, and the input end of the motor 11 is electrically connected to the output end of the external controller. The motor 11 is controlled by the external controller to work, and the motor 11 drives the first rotating shaft 22 to rotate, thereby completing the rotation of the first rotating shaft 22 by electric power.
[0023] The auxiliary filtering assembly includes a slide rail opened on the right side of the filter box 4, and an activated carbon board bracket 6 is slidably installed in the slide rail, and an activated carbon board 5 is installed in the activated carbon board bracket 6. The VOCs exhaust gas is initially filtered by the activated carbon board 5, and the activated carbon board bracket 6 can be installed and removed by the slide rail, which is convenient for cleaning the activated carbon board 5 to improve the filtering effect of the activated carbon board 5.
[0024] The working principle of a VOCs waste gas adsorption and concentration device provided by the utility model is as follows: when in use, the VOCs waste gas is introduced into the filter box 4 through the air inlet pipe 3, and is initially filtered through the auxiliary filter component, and enters the adsorption box 1 under the action of the connecting pipe 9. At the same time, the driving component works to drive the first rotating shaft 22 to rotate, and the rotation of the first rotating shaft 22 drives the rotating drum 13 to rotate. The rotation of the rotating drum 13 uses the multiple zeolite molecular sieves 14 on the rotating drum 13 to deeply adsorb the VOCs waste gas, and when the rotating drum 13 rotates to the other side, the filtrate on the zeolite molecular sieve 14 is blown into the catalytic combustion device 16 through the recovery channel 15 through the desorption component, and the catalytic combustion device 16 is used to catalytically burn the filtrate, and the filtered gas is discharged and recovered through the induced draft fan 2, the air inlet 8 and the installation pipe 19. Therefore, this device can not only deeply filter the VOCs waste gas and catalytically burn the filtrate, but also effectively desorb the filtrate from the zeolite molecular sieve 14, thereby improving the filtering effect of the VOCs waste gas and the service life of the zeolite. When the first rotating shaft 22 rotates, the second bevel gear 25 rotates, the second bevel gear 25 rotates, the first bevel gear 24 rotates, the second rotating shaft 23 rotates, the second rotating shaft 23 rotates, and the fan blades 26 rotate. The wind force brought by the rotation of the fan blades 26 desorbs the filtrate. At the same time, the desorption efficiency and desorption effect of the filtrate can be improved by heating the filtrate with the electric heating plate 20 controlled by the temperature controller. The motor 11 is controlled by an external controller to drive the first rotating shaft 22 to rotate, so that the rotation of the first rotating shaft 22 is completed by electric power. The VOCs waste gas is initially filtered by the activated carbon plate 5, and the activated carbon plate bracket 6 can be installed and removed by the slide rail, which is convenient for cleaning the activated carbon plate 5 to improve the filtering effect of the activated carbon plate 5.
[0025] It is worth noting that in this embodiment, the core chip of the external controller is an STC single-chip microcomputer, specifically, the model is STC15W204S, the induced draft fan 2, the motor 11 and the electric heating plate 20 can be freely configured according to the actual application scenario, and the motor 11 can be a JE series single-phase servo motor produced by Beijing Mitsubishi Electric (China) Co., Ltd. The external controller controls the operation of the induced draft fan 2 and the motor 11, and the temperature controller controls the operation of the electric heating plate 20, using the commonly used methods in the prior art.
[0026] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A VOCs waste gas adsorption concentration device, characterized in that: It comprises an adsorption box (1) and a filter box (4); A connecting pipe (9) is installed on the left side of the adsorption box (1), the left end of the connecting pipe (9) is connected to the air outlet of the filter box (4), an air inlet pipe (3) is installed on the left air inlet of the filter box (4), an auxiliary filter assembly is provided in the filter box (4), an air outlet pipe (7) is installed on the upper part of the adsorption box (1), an induced draft fan (2) is installed on the upper part of the air outlet pipe (7), and an air suction port (8) is installed on the lower end of the air outlet pipe (7), and the air suction port (8) is in the shape of a trumpet; A mounting plate (21) is installed at the lower part of the interior of the adsorption box (1), a first rotating shaft (22) is rotatably mounted on the mounting plate (21), a rotating drum (13) is installed at the upper end of the first rotating shaft (22), a plurality of grooves are evenly formed on the upper surface of the rotating drum (13), zeolite molecular sieves (14) are arranged in the grooves, and the grooves and the zeolite molecular sieves (14) correspond to each other one by one, a recovery channel (15) is installed in the right side of the adsorption box (1), and a bottom plate (12) is installed on the right side of the adsorption box (1), and the bottom plate A catalytic combustion device (16) is installed on (12), the air inlet of the catalytic combustion device (16) is connected to the right end of the recovery channel (15), the air outlet of the catalytic combustion device (16) is installed with a mounting pipe (19), the other end of the mounting pipe (19) is passed through the adsorption box (1), and the end of the mounting pipe (19) is connected to the outlet pipe (7), a desorption component is installed on the right side of the adsorption box (1), and a driving component is installed at the bottom of the adsorption box (1), and the driving component is connected to the first rotating shaft (22).
2. The VOCs waste gas adsorption concentration device according to claim 1, characterized in that: The desorption assembly comprises an L-shaped bracket (18) mounted on the right side inside the adsorption box (1), an electric heating plate (20) being mounted inside the L-shaped bracket (18), an upper end of the first rotating shaft (22) being located inside the rotating drum (13), a second bevel gear (25) being mounted on the upper end of the first rotating shaft (22), a mounting bracket (17) being mounted on the inner top surface of the adsorption box (1), a second rotating shaft (23) being rotatably mounted on the right side of the lower end of the mounting bracket (17), a first bevel gear (24) being mounted on the second rotating shaft (23), the first bevel gear (24) and the second bevel gear (25) being meshingly connected, a plurality of fan blades (26) being mounted on the right end of the second rotating shaft (23), the fan blades (26), the electric heating plate (20) and the recovery channel (15) being horizontally corresponding.
3. The VOCs waste gas adsorption concentration device according to claim 1, characterized in that: The drive assembly comprises a motor bracket (10) mounted on the inner bottom surface of the adsorption box (1), a motor (11) being mounted on the motor bracket (10), an output shaft of the motor (11) being connected to the lower end of a first rotating shaft (22) via a coupling, and an input end of the motor (11) being electrically connected to an output end of an external controller.
4. The VOCs waste gas adsorption concentration device according to claim 1, characterized in that: The auxiliary filter assembly comprises a slide rail opened on the right side of the filter box (4), an activated carbon board bracket (6) is slidably mounted in the slide rail, and an activated carbon board (5) is mounted in the activated carbon board bracket (6).