Zeolite powder fluidization and desorption device for VOC waste gas treatment

Abstract

The utility model relates to the technical field of VOC (volatile organic compound) waste gas treatment, and discloses a VOC waste gas treatment zeolite powder fluidization desorption device which comprises a base, a stirring barrel fixedly mounted on the side edge of the top end of the base, a motor fixedly mounted at the top end of the stirring barrel, a rotating shaft fixedly mounted at the axis of the motor, and a stirring rod fixedly mounted on the peripheral surface of the rotating shaft, a frame is fixedly mounted at the top end of the stirring barrel, an air inlet pipeline is fixedly mounted on one side of the top end of the stirring barrel, a control valve is fixedly mounted at the middle end of the air inlet pipeline, an exhaust pipe is fixedly mounted on the other side of the top end of the stirring barrel, a first filter plate is fixedly mounted at the bottom end in the exhaust pipe, and a filter barrel is fixedly mounted at the top end; a fan is fixedly mounted at the top end of the base; an air outlet pipe is fixedly mounted on the side edge of the fan; a heater is fixedly mounted at the top end of the air outlet pipe; and an air guide pipe is fixedly mounted at the output end of the heater.

Description

Technical Field

[0001] The utility model relates to the technical field of VOC waste gas treatment, in particular to a VOC waste gas treatment zeolite powder fluidized desorption device. Background Art

[0002] Volatile Organic Compounds (VOCs) are a class of chemical substances that are harmful to the environment and human health, mainly from industrial production, traffic exhaust, and interior decoration. In order to reduce the pollution of VOC waste gas to the environment and protect people's health, it is necessary to design and implement VOC waste gas treatment engineering technology solutions. Zeolite has properties such as adsorption, ion exchange, catalysis, and acid and heat resistance, so it is widely used as an adsorbent, ion exchanger and catalyst, and can also be used in gas drying, purification and sewage treatment.

[0003] Currently, activated carbon and rotary zeolite mainly use hot air and fixed bed desorption methods. However, if the zeolite powder is directly introduced with hot air, the zeolite powder cannot be fully in contact with the hot air, the zeolite powder is heated unevenly, the adsorbed VOC cannot be desorbed, and the desorption efficiency is low. In addition, when using fixed bed desorption, local VOC gas oxidation is easily caused by local high temperature and "simmering", which increases the safety risk of desorption operation. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a zeolite powder fluidized desorption device for treating VOC waste gas, which is equipped with a matching powder stirring device and a fan, so that the zeolite powder is heated in a fluidized state and fully contacts with the hot air, so that the desorption is more complete, the desorption efficiency is higher, and the desorption energy consumption is lower. The high-concentration VOC waste gas desorbed by the zeolite powder is separated from the powder by the first filter plate and the second filter plate, and then sent to the subsequent matching catalytic combustion and other devices for treatment, forming a zeolite powder adsorption concentration plus catalytic combustion treatment process with the advantages of efficiently treating VOC, etc., and solving the above-mentioned technical problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a fluidized desorption device for treating zeolite powder of VOC waste gas, comprising a base, a mixing drum is fixedly installed on the side of the top of the base, a motor is fixedly installed on the top of the mixing drum, a rotating shaft is fixedly installed at the axis of the motor, a mixing rod is fixedly installed on the outer peripheral surface of the rotating shaft, a frame is fixedly installed on the top of the mixing drum, and an air intake pipe is fixedly installed on one side of the top, a control valve is fixedly installed on the middle end of the air intake pipe, an exhaust pipe is fixedly installed on the other side of the top of the mixing drum, a first filter plate is fixedly installed on the bottom end of the exhaust pipe, and a filter drum is fixedly installed on the top, a second filter plate is fixedly installed in the filter drum, and an air outlet is fixedly installed on the top, a fan is fixedly installed on the top of the base, an air outlet pipe is fixedly installed on the side of the fan, a heater is fixedly installed on the top of the air outlet pipe, and an air guide pipe is fixedly installed on the output end of the heater.

[0008] Preferably, a group of air outlet pipes are fixedly installed at the output end of the fan side, the top end of the air outlet pipes is fixedly connected to the input end of the heater, and the other end of the air guide pipe is fixedly connected to the bottom end of the mixing drum side.

[0009] Through the above technical solution, the fan is started, and the fan transmits the wind through the air outlet pipe to the heater, and then the wind is heated by the heater to form hot air, which is then transmitted to the inside of the mixing drum through the air guide pipe, so that the zeolite powder is fully in contact with the hot air, the desorption is more complete, the desorption efficiency is higher, and the desorption energy consumption is lower.

[0010] Preferably, a group of rotating shafts are fixedly mounted at the axis of the motor, and a group of stirring rods are fixedly mounted on the outer circumference of the rotating shafts.

[0011] Through the above technical solution, the motor is started, and the motor rotor end rotates to drive the rotating shaft to rotate inside the mixing drum, thereby stirring the zeolite powder inside the mixing drum, so that the zeolite powder is heated in a fluidized state and fully contacts with the hot air, desorption is more complete, the desorption efficiency is higher, and the desorption energy consumption is lower.

[0012] Preferably, a group of control valves are fixedly installed at the middle end of the air intake pipe.

[0013] Through the above technical solution, the control valve at the air inlet is used to prevent the zeolite powder from desorbing high-concentration VOC waste gas and allowing it to overflow only through the air inlet pipe, thereby preventing leakage.

[0014] Preferably, a group of first filter plates are fixedly installed at the bottom end of the exhaust pipe, and a group of second filter plates are fixedly installed inside the filter cartridge.

[0015] Through the above technical solution, the high-concentration VOC waste gas desorbed from the zeolite powder can be accelerated to overflow from the exhaust pipe under fluidized desorption. The powder in the gas is firstly filtered through the first filter plate, and then secondary filtered through the second filter plate inside the filter cartridge, so that the VOC waste gas is sent to subsequent supporting catalytic combustion and other devices for treatment.

[0016] Compared with the prior art, the utility model provides a VOC waste gas treatment zeolite powder fluidized desorption device, which has the following beneficial effects:

[0017] 1. The utility model starts the fan so that the fan transmits wind power to the heater through the air outlet pipe, and then heats the wind power through the heater to form hot air, which is then transmitted to the inside of the mixing drum through the air guide pipe. The motor is started to rotate the motor rotor end to drive the rotating shaft to rotate inside the mixing drum, thereby stirring the zeolite powder inside the mixing drum, so that the zeolite powder is heated in a fluidized state and fully contacts with the hot air, so that the desorption is more complete, the desorption efficiency is higher, and the desorption energy consumption is lower.

[0018] 2. The utility model uses a control valve at the air inlet to prevent the high-concentration VOC waste gas desorbed from the zeolite powder from only overflowing through the air inlet pipe, thereby preventing leakage. The high-concentration VOC waste gas desorbed from the zeolite powder can be accelerated to overflow from the exhaust pipe under fluidized desorption. First, the powder in the gas is preliminarily filtered through the first filter plate, and then the second filter plate inside the filter cartridge is used for secondary filtration, so that the VOC waste gas is sent to subsequent supporting catalytic combustion devices for treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the structural desorption device of the utility model;

[0020] Figure 2 This is a front view schematic diagram of the desorption device of the utility model structure;

[0021] Figure 3 This is a three-dimensional schematic diagram of the interior of the desorption device of the utility model;

[0022] Figure 4 This is a schematic front view of the interior of the desorption device of the utility model;

[0023] Figure 5 This is a partially enlarged disassembly schematic diagram of the structural desorption device of the utility model.

[0024] Among them: 1. base; 2. mixing drum; 3. motor; 4. rotating shaft; 5. stirring rod; 6. frame; 7. air inlet pipe; 8. control valve; 9. exhaust pipe; 10. first filter plate; 11. filter drum; 12. second filter plate; 13. air outlet; 14. fan; 15. air outlet pipe; 16. heater; 17. air guide pipe. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-5 A fluidized desorption device for treating zeolite powder of VOC waste gas comprises a base 1, a mixing drum 2 is fixedly mounted on the side of the top of the base 1, a motor 3 is fixedly mounted on the top of the mixing drum 2, a rotating shaft 4 is fixedly mounted at the axis of the motor 3, a mixing rod 5 is fixedly mounted on the outer peripheral surface of the rotating shaft 4, a frame 6 is fixedly mounted on the top of the mixing drum 2, an air intake pipe 7 is fixedly mounted on one side of the top, a control valve 8 is fixedly mounted on the middle end of the air intake pipe 7, an exhaust pipe 9 is fixedly mounted on the other side of the top of the mixing drum 2, a first filter plate 10 is fixedly mounted on the bottom end of the exhaust pipe 9, a filter cartridge 11 is fixedly mounted on the top, a second filter plate 12 is fixedly mounted inside the filter cartridge 11, and an air outlet 13 is fixedly mounted on the top, a fan 14 is fixedly mounted on the top of the base 1, an air outlet pipe 15 is fixedly mounted on the side of the fan 14, a heater 16 is fixedly mounted on the top of the air outlet pipe 15, and an air guide pipe 17 is fixedly mounted on the output end of the heater 16.

[0027] Specifically, a set of air outlet pipes 15 are fixedly installed at the output end of the side of the fan 14, the top of the air outlet pipe 15 is fixedly connected to the input end of the heater 16, and the other end of the air guide pipe 17 is fixedly connected to the bottom end of the mixing drum 2. The advantage is that when the fan 14 is started, the fan 14 transmits the wind force to the heater 16 through the air outlet pipe 15, and then the wind force is heated by the heater 16 to form hot air, which is then transmitted to the inside of the mixing drum 2 through the air guide pipe 17, so that the zeolite powder is fully in contact with the hot air, the desorption is more complete, the desorption efficiency is higher, and the desorption energy consumption is lower.

[0028] Specifically, a set of rotating shafts 4 are fixedly mounted at the axis of the motor 3, and a set of stirring rods 5 are fixedly mounted on the outer peripheral surface of the rotating shaft 4. The advantage is that when the motor 3 is started, the rotor end of the motor 3 rotates to drive the rotating shaft 4 to rotate inside the mixing drum 2, thereby stirring the zeolite powder inside the mixing drum 2, so that the zeolite powder is heated in a fluidized state and fully contacts with the hot air, so that the desorption is more complete, the desorption efficiency is higher, and the desorption energy consumption is lower.

[0029] Specifically, a set of control valves 8 are fixedly installed at the middle end of the air intake pipe 7. The advantage is that the control valve 8 at the air intake port can prevent the zeolite powder from desorbing high-concentration VOC waste gas and only overflowing through the air intake pipe 7, thereby preventing leakage.

[0030] Specifically, a group of first filter plates 10 are fixedly installed at the bottom end of the exhaust pipe 9, and a group of second filter plates 12 are fixedly installed inside the filter cartridge 11. The advantage is that the high-concentration VOC waste gas desorbed from the zeolite powder can be accelerated to overflow from the exhaust pipe 9 under fluidized desorption, and the powder in the gas is firstly filtered by the first filter plate 10, and then the second filter plate 12 inside the filter cartridge 11 is filtered for the second time, so that the VOC waste gas is sent to the subsequent supporting catalytic combustion and other devices for treatment.

[0031] When in use, the fan 14 is started, so that the fan 14 transmits the wind through the air outlet pipe 15 to the heater 16, and then the wind is heated by the heater 16 to form hot air, and then transmitted to the inside of the mixing drum 2 through the air guide pipe 17, and the motor 3 is started, so that the rotor end of the motor 3 rotates to drive the rotating shaft 4 to rotate inside the mixing drum 2, so as to stir the zeolite powder inside the mixing drum 2, so that the zeolite powder is heated in a fluidized state, fully in contact with the hot air, desorption is more complete, and the desorption efficiency is higher, and the desorption energy consumption is lower. Through the control valve 8 of the air inlet, it is prevented that the high-concentration VOC waste gas desorbed by the zeolite powder can only overflow through the air inlet pipe 7 to prevent leakage. The high-concentration VOC waste gas desorbed by the zeolite powder can be accelerated to overflow from the exhaust pipe 9 under fluidized desorption. First, the powder in the gas is preliminarily filtered by the first filter plate 10, and then the second filter plate 12 inside the filter drum 11 is filtered for secondary filtering, so that the VOC waste gas is sent to the subsequent supporting catalytic combustion and other devices for treatment.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fluidized desorption device for treating zeolite powder for VOC waste gas, comprising a base (1), characterized in that: A mixing drum (2) is fixedly mounted on the side of the top of the base (1), a motor (3) is fixedly mounted on the top of the mixing drum (2), a rotating shaft (4) is fixedly mounted at the axis of the motor (3), a mixing rod (5) is fixedly mounted on the outer peripheral surface of the rotating shaft (4), a frame (6) is fixedly mounted on the top of the mixing drum (2), an air intake pipe (7) is fixedly mounted on one side of the top, a control valve (8) is fixedly mounted on the middle end of the air intake pipe (7), an exhaust pipe (9) is fixedly mounted on the other side of the top of the mixing drum (2), and A first filter plate (10) is fixedly mounted at the bottom end of the exhaust pipe (9), and a filter cartridge (11) is fixedly mounted at the top end; a second filter plate (12) is fixedly mounted inside the filter cartridge (11), and an air outlet (13) is fixedly mounted at the top end; a fan (14) is fixedly mounted at the top end of the base (1); an air outlet pipe (15) is fixedly mounted on the side of the fan (14); a heater (16) is fixedly mounted at the top end of the air outlet pipe (15); and an air guide pipe (17) is fixedly mounted at the output end of the heater (16).

2. A fluidized desorption device for treating zeolite powder for VOC waste gas according to claim 1, characterized in that: A set of air outlet pipes (15) are fixedly installed at the output end of the side of the fan (14), the top end of the air outlet pipe (15) is fixedly connected to the input end of the heater (16), and the other end of the air guide pipe (17) is fixedly connected to the bottom end of the mixing drum (2).

3. A fluidized desorption device for treating zeolite powder for VOC waste gas according to claim 1, characterized in that: A set of rotating shafts (4) are fixedly mounted at the axis of the motor (3), and a set of stirring rods (5) are fixedly mounted on the outer circumference of the rotating shafts (4).

4. A fluidized desorption device for treating zeolite powder for VOC waste gas according to claim 1, characterized in that: A group of control valves (8) are fixedly installed at the middle end of the air intake pipeline (7).

5. The VOC waste gas treatment zeolite powder fluidized desorption device according to claim 1, characterized in that: A group of first filter plates (10) is fixedly installed at the bottom end of the exhaust pipe (9), and a group of second filter plates (12) is fixedly installed inside the filter cartridge (11).

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