CN114345092A - Microwave plasma waste gas purification method and device - Google Patents
Microwave plasma waste gas purification method and device Download PDFInfo
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- CN114345092A CN114345092A CN202210029630.6A CN202210029630A CN114345092A CN 114345092 A CN114345092 A CN 114345092A CN 202210029630 A CN202210029630 A CN 202210029630A CN 114345092 A CN114345092 A CN 114345092A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/806—Microwaves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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Abstract
The invention discloses a microwave plasma waste gas purification method and a device, which relate to the technical field of waste gas purification and comprise the following steps: adsorbing, namely passing a conveyor belt containing an adsorbing material through an adsorbing chamber containing organic waste gas so as to adsorb the organic waste gas on the adsorbing material; desorbing, namely enabling the conveyor belt adsorbed with the organic gas to pass through a desorption chamber provided with a heating device so that the organic gas is separated out from the adsorption material; cooling, namely enabling the desorbed conveyor belt to pass through a cooling chamber provided with a cooling device so as to cool the conveyor belt; passing the cooled conveyor belt through an adsorption chamber, and repeating the steps of adsorption, desorption and cooling; purifying, wherein the separated organic gas enters a purifying chamber provided with a microwave plasma generator, so that the organic gas and high-energy active substances generated by the microwave plasma generator are subjected to oxidation reaction and then discharged; the adsorbing material on the conveyer belt is cooled by a cooling device in the cooling chamber and then is transmitted back to the adsorbing chamber, so that the adsorbing material can adsorb the organic gas in the waste gas again.
Description
Technical Field
The invention relates to the technical field of waste gas purification, in particular to a microwave plasma waste gas purification method and a device.
Background
With the wide application of organic chemical products in industry, more and more volatile organic pollutants enter the atmosphere, mainly low-boiling-point and volatile organic matters. They are mainly derived from the exhaust gases emitted by the petrochemical industry; organic solvents discharged by industries such as flexible package printing, pesticides, medical intermediates, automobile spraying, electronics, machinery, shoemaking, synthetic leather, synthetic fibers, plastics, paper making, paint, coating, ceramics, mining, textile and the like, which not only harm the health of workers in workshops and people around, cause pollution to the atmospheric environment, but also cause loss and waste of resources.
Chinese patent CN201510379911.4 discloses a belt-type adsorption microwave desorption organic waste gas purification method and device, which comprises the following steps: 1) adsorbing, namely enabling a conveyor belt containing an adsorption medium to pass through an adsorption chamber containing organic waste gas, so that the organic gas is adsorbed on the adsorption medium; 2) desorbing, namely enabling the adsorbed conveyor belt to pass through a desorption chamber provided with a microwave generator to separate out the organic gas from the adsorption medium; 3) the conveyor belt after desorption passes through the adsorption chamber again, and the steps 1) and 2) are repeated; the conveying belt penetrates through the gas carrying chamber after adsorption or desorption, the gas carrying chamber continuously conveys nitrogen or inert gas into the desorption chamber, and the nitrogen or inert gas brings out the organic gas in the desorption chamber. The conveyer belt of above-mentioned scheme can have the temperature rise after passing through microwave generator, and the conveyer belt after the temperature rise can influence the ability that the adsorption media adsorbs organic gas after getting back to the adsorption chamber, influences the processing of waste gas.
Disclosure of Invention
The invention aims to: the invention provides a microwave plasma waste gas purification method and device, aiming at solving the technical problems that the temperature of a conveyor belt rises after the conveyor belt passes through a microwave generator, the conveyor belt with the raised temperature returns to an adsorption chamber to influence the capacity of an adsorption medium for adsorbing organic gas and influence the treatment of waste gas.
The invention specifically adopts the following technical scheme for realizing the purpose:
a microwave plasma waste gas purification method comprises the following steps:
adsorbing, namely passing a conveyor belt containing an adsorbing material through an adsorbing chamber containing organic waste gas so as to adsorb the organic waste gas on the adsorbing material;
desorbing, namely enabling the conveyor belt adsorbed with the organic gas to pass through a desorption chamber provided with a heating device so that the organic gas is separated out from the adsorption material;
cooling, namely enabling the desorbed conveyor belt to pass through a cooling chamber provided with a cooling device so as to cool the conveyor belt;
passing the cooled conveyor belt through an adsorption chamber, and repeating the steps of adsorption, desorption and cooling;
and (4) purifying, wherein the separated organic gas enters a purifying chamber provided with a microwave plasma generator, so that the organic gas and high-energy active substances generated by the microwave plasma generator are subjected to oxidation reaction and then discharged.
A microwave plasma waste gas purification device comprises an adsorption chamber, a desorption chamber, a cooling chamber, a purification chamber, a conveyor belt, a heating device, a cooling device and a microwave plasma generator;
the adsorption chamber is provided with an air inlet pipe and an air outlet pipe;
the heating device is arranged in the desorption chamber, and a vent pipe is arranged between the desorption chamber and the purification chamber;
the microwave plasma generator is arranged in a purifying chamber, and the purifying chamber is provided with an exhaust pipe;
the cooling device is arranged in the cooling chamber;
the conveyer belt is used for adsorbing organic gas, passes through the adsorption chamber and extends to the desorption chamber, passes through the desorption chamber and extends to the cooling chamber, passes through the cooling chamber and extends to the adsorption chamber.
Further, the conveyer belt includes the protective layer and sets up the adsorbed layer on the protective layer, the protective layer adopts glass fiber filter cloth, the adsorbed layer adopts activated carbon material to make.
Furthermore, the number of the adsorption layers is two, and the upper surface and the lower surface of the protection layer are respectively provided with one adsorption layer.
Further, cooling device is including being located the conveyer belt upper and lower side and conveyer belt contact extruded heat exchanger and setting up the radiator on heat exchanger, the radiator is including having the casing that holds the cavity, be provided with on the casing and hold the inlet liquid pipeline and the drain pipe way of cavity intercommunication, with inlet liquid pipeline and drain pipe way intercommunication circulating line, last condenser and the circulating pump of being provided with of circulating line, condenser and drain pipe way intercommunication.
Further, be provided with the stock solution chamber in the casing, stock solution chamber and inlet channel intercommunication, stock solution chamber and hold and be provided with a plurality of microchannels between the cavity, the coolant liquid in the stock solution intracavity through the microchannel pressurization get into hold the cavity with heat exchanger carries out the heat exchange.
Further, the heat exchanger is a thermally conductive coating.
Furthermore, a plurality of driven wheels for supporting the conveyor belt are arranged in the adsorption chamber, the desorption chamber and the cooling chamber, and the conveyor belt is driven by a driving motor to reciprocate.
Further, the purification chamber is disposed above the desorption chamber.
Further, the air inlet pipe is connected with a dust remover.
The invention has the following beneficial effects:
1. the invention inputs waste gas through the gas inlet pipe, organic gas contained in the waste gas is adsorbed on the adsorbing material of the conveyor belt and is transmitted to the desorption chamber, the rest other gases are qualified gases and are discharged through the gas outlet pipe, the heating device in the desorption chamber is used for heating, so that the organic gas adsorbed on the adsorbing material of the conveyor belt is separated from the adsorbing material, the separated organic gas is transmitted to the purification chamber, oxygen molecules and water molecules in the air absorb high-energy light rays under the irradiation of an electrodeless lamp in the microwave plasma generator in the purification chamber, the high-energy active substances including ozone and hydroxyl free radicals are generated through reaction or dissociation, the high-energy active substances contained in the plasma react with the organic gas, the purpose of decomposing and purifying the organic gas is further achieved, the purified organic gas is decomposed and further reacted into dischargeable gas, can be directly discharged to the external environment; the conveyer belt of desorption room conveys the cooling chamber, and the adsorption material on the conveyer belt is carried out the cooling back through the cooling device in the cooling chamber and is transmitted back the absorption room, is convenient for pass through the organic gas in the adsorption material absorption waste gas once more.
2. The conveying belt comprises the protective layer and the adsorption layer arranged on the protective layer, so that the performance of the conveying belt is conveniently ensured through the protective layer, and organic gas in waste gas is adsorbed through the adsorption layer, wherein the adsorption layer is divided into two layers which are respectively arranged on the upper surface and the lower surface of the protective layer, so that the area of the adsorption layer is conveniently increased, and more organic gas can be adsorbed at one time.
3. The cooling device comprises a heat exchanger and a radiator, wherein the heat exchanger is positioned on the upper side and the lower side of a conveyor belt and is in contact extrusion with the conveyor belt, the radiator is arranged on the heat exchanger, heat on the conveyor belt is conveniently conducted through the heat exchanger, then a circulating closed loop is formed through a shell, a liquid inlet pipeline, a liquid outlet pipeline, a circulating pipeline, a condenser and a circulating pump, cooling liquid is output from the output end of the circulating pump, the cooling liquid is conveyed into a containing cavity of the shell through the liquid inlet pipeline, the cooling liquid in the containing cavity enters the circulating pipeline through the liquid outlet pipeline under the action of the circulating pump, the heat on the heat exchanger is taken away by the cooling liquid, the condenser on the circulating pipeline cools the cooling liquid, and the cooled cooling liquid is output to the input end of the circulating pump.
4. A liquid storage cavity is formed in the shell and is communicated with a liquid inlet pipeline, a plurality of micro channels are arranged between the liquid storage cavity and the accommodating cavity, cooling liquid in the liquid storage cavity is pressurized through the micro channels to enter the accommodating cavity to exchange heat with the heat exchanger, the cooling liquid can effectively impact a heat dissipation area through the pressurization of the micro channels, and the heat dissipation performance is enhanced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the conveyor belt of the present invention;
FIG. 3 is a partial schematic view of the heat sink of the present invention;
reference numerals: 1-adsorption chamber, 2-desorption chamber, 3-cooling chamber, 4-purification chamber, 5-conveyor belt, 501-protective layer, 502-adsorption layer, 6-heating device, 7-cooling device, 701-heat exchanger, 702-shell, 703-liquid inlet pipeline, 704-liquid outlet pipeline, 705-circulation pipeline, 706-condenser, 707-circulation pump, 708-liquid storage cavity, 709-microchannel, 8-microwave plasma generator, 9-air inlet pipe, 10-air outlet pipe, 11-air vent pipe, 12-air vent pipe and 13-driven wheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The embodiment provides a microwave plasma waste gas purification method, which comprises the following steps:
adsorbing, namely passing a conveyor belt containing an adsorbing material through an adsorbing chamber containing organic waste gas so as to adsorb the organic waste gas on the adsorbing material;
desorbing, namely enabling the conveyor belt adsorbed with the organic gas to pass through a desorption chamber provided with a heating device so that the organic gas is separated out from the adsorption material;
cooling, namely enabling the desorbed conveyor belt to pass through a cooling chamber provided with a cooling device so as to cool the conveyor belt;
passing the cooled conveyor belt through an adsorption chamber, and repeating the steps of adsorption, desorption and cooling;
and (4) purifying, wherein the separated organic gas enters a purifying chamber provided with a microwave plasma generator, so that the organic gas and high-energy active substances generated by the microwave plasma generator are subjected to oxidation reaction and then discharged.
Example 2
As shown in fig. 1, the present embodiment provides a microwave plasma exhaust gas purification apparatus, which includes an adsorption chamber 1, a desorption chamber 2, a cooling chamber 3, a purification chamber 4, a conveyor belt 5, a heating device 6, a cooling device 7, and a microwave plasma generator 8;
the adsorption chamber 1 is provided with an air inlet pipe 9 and an air outlet pipe 10;
the heating device 6 is arranged in the desorption chamber 2, and a vent pipe 11 is arranged between the desorption chamber 2 and the purification chamber 4;
the microwave plasma generator 8 is arranged in the purifying chamber 4, and the purifying chamber 4 is provided with an exhaust pipe 12;
the cooling device 7 is arranged in the cooling chamber 3;
the conveyor belt 5 is used for adsorbing organic gas, extends to the desorption chamber 2 through the adsorption chamber 1, extends to the cooling chamber 3 through the desorption chamber 2, and extends to the adsorption chamber 1 through the cooling chamber 3.
In this embodiment, the adsorption chamber 1 is provided with an inlet pipe 9 and an outlet pipe 10, the inlet pipe 9 is used for inputting waste gas, and the outlet pipe 10 is used for discharging the residual qualified gas after the organic gas in the waste gas is adsorbed by the conveyor belt 5. The conveyor belt 5 is conveyed to the desorption chamber 2, and the heating device 6 in the desorption chamber 2 can adopt a microwave heating device 6, a resistance wire heating device 6 and the like as long as the organic gas can be separated from the conveyor belt 5. The heating device 6 heats the organic gas adsorbed on the conveyor belt 5 to be separated out and then enters the purifying chamber 4 through the vent pipe 11. Inside microwave plasma generator 8 in clean room 4 is under the irradiation of electrodeless lamp, oxygen molecule and hydrone in the air absorb high energy light, take place the reaction or dissociate and generate high energy active material including ozone, hydroxyl free radical, the high energy active material that contains in the plasma reacts with organic gas, and then reach the purpose to organic gas decomposition purification, the organic gas after the purification is decomposed and further reacts into can the exhaust gas, alright directly discharge to the external environment. Conveying in the clean room 4 is transmitted to cooling chamber 3, and cooling device 7 in the cooling chamber 3 cools down conveying belt 5, and conveying belt 5 after cooling carries back absorption chamber 1, avoids 5 high temperature influences organic gas's of conveying belt absorption, improves exhaust purification's efficiency.
Example 3
On the basis of embodiment 2, as shown in fig. 2, the conveyor belt 5 includes a protective layer 501 and an adsorption layer 502 disposed on the protective layer 501, the protective layer 501 is made of glass fiber filter cloth, and the adsorption layer 502 is made of an activated carbon material. During the implementation, be convenient for guarantee the needs of transmission through protective layer 501, be convenient for guarantee the needs of organic gas absorption through adsorbed layer 502, adopt the mode that protective layer 501 and adsorbed layer 502 combine to make conveyer belt 5 have anti high temperature, stretch-proofing characteristic and have better organic gas's adsorption effect.
Example 4
In addition to embodiment 3, as shown in fig. 2, there are two adsorption layers 502, and one adsorption layer 502 is disposed on each of the upper and lower surfaces of the protection layer 501.
In this embodiment, the upper and lower surfaces of the protection layer 501 are both provided with the adsorption layer 502, which is convenient for increasing the area of the adsorption layer 502, so that the adsorption layer 502 and the organic gas have a larger contact area, and the efficiency of adsorbing the organic gas is improved.
Example 5
On the basis of embodiment 2, as shown in fig. 1, the cooling device 7 includes a heat exchanger 701 located on the upper and lower sides of the conveyor belt 5 and pressed in contact with the conveyor belt 5, and a radiator disposed on the heat exchanger 701, the radiator includes a housing 702 having a receiving cavity, a liquid inlet pipe 703 and a liquid outlet pipe 704 disposed on the housing 702 and communicated with the receiving cavity, a circulating pipe 705 communicated with the liquid inlet pipe 703 and the liquid outlet pipe 704, a condenser 706 and a circulating pump 707 disposed on the circulating pipe 705, and the condenser 706 is communicated with the liquid outlet pipe 704.
In this embodiment, the cooling device 7 includes a heat exchanger 701 and a heat sink disposed on the heat exchanger 701, the heat exchanger 701 is disposed on and under the conveyor belt 5 and contacts and extrudes with the conveyor belt 5, so as to conduct heat on the conveyor belt 5 through the heat exchanger 701, and then a circulation loop is formed by the housing 702, the liquid inlet pipe 703 and the liquid outlet pipe 704, the circulation pipe 705, the condenser 706 and the circulation pump 707, the output end of the circulation pump 707 outputs cooling liquid, the cooling liquid is delivered to the accommodating cavity of the housing 702 through the liquid inlet pipe 703, under the action of the circulation pump 707, the cooling liquid in the accommodating cavity enters the circulation pipe 705 through the liquid outlet pipe 704, heat on the heat exchanger 701 is taken away by the cooling liquid, the condenser 706 on the circulation pipe 705 cools the cooling liquid, and the cooled cooling liquid is output to the input end of the circulation pump 707. It should be noted that, the present invention may be provided with a plurality of sets of cooling devices 7, so as to increase the contact time between the conveyor belt 5 and the heat exchanger 701, thereby ensuring the cooling effect of the conveyor belt 5.
Example 6
Based on embodiment 5, as shown in fig. 2 and fig. 3, a liquid storage cavity 708 is arranged in the housing 702, the liquid storage cavity 708 is communicated with a liquid inlet pipeline 703, a plurality of micro channels 709 are arranged between the liquid storage cavity 708 and the accommodating cavity, and the cooling liquid in the liquid storage cavity 708 is pressurized through the micro channels 709 into the accommodating cavity to exchange heat with the heat exchanger 701. Preferably, the heat exchanger 701 is a thermally conductive coating.
In this embodiment, be provided with stock solution chamber 708 in the casing 702, stock solution chamber 708 and inlet liquid pipeline 703 intercommunication, stock solution chamber 708 and hold and be provided with a plurality of microchannels 709 between the cavity, the coolant liquid in stock solution chamber 708 gets into through microchannel 709 pressurization and holds the cavity and carry out the heat exchange with heat exchanger 701, pressurizes through microchannel 709 and can effectively make the coolant liquid strike the heat dissipation region, strengthen heat dispersion. The heat exchanger 701 is a heat-conducting coating, so that the heat exchanger can be in large-area contact with the conveyor belt 5 through the heat-conducting coating, and heat on the conveyor belt 5 can be conducted as far as possible. It should be noted that the liquid inlet pipe 703 and the liquid outlet pipe 704 are both disposed on a side of the housing 702 away from the conveyor belt 5, so that it can be ensured that the cooling liquid enters the accommodating cavity after being pressurized through the micro-channel 709 and directly impacts a side of the housing 702 close to the conveyor belt 5, and the cooling liquid can better exchange heat with the heat conductive coating through the housing 702.
Example 7
On the basis of embodiment 2, a plurality of driven wheels 13 supporting the conveyor belt 5 are arranged in the adsorption chamber 1, the desorption chamber 2 and the cooling chamber 3, and the conveyor belt 5 is driven by a driving motor (not shown in the figure) to reciprocate.
In this embodiment, the conveyor belt 5 is a closed structure and continuously reciprocates, wherein the driving force is provided by a driving motor, and the driven wheel 13 is used as a supporting structure of the conveyor belt 5. The transport direction of the conveyor belt 5 is from the adsorption chamber 1 to the desorption chamber 2, from the desorption chamber 2 to the cooling chamber 3, and from the cooling chamber 3 to the adsorption chamber 1.
Example 8
On the basis of embodiment 2, the purge chamber 4 is disposed above the desorption chamber 2.
In this embodiment, the purification chamber 4 is disposed above the desorption chamber 2, so that the organic gas precipitated in the desorption chamber 2 can be heated and expanded by the heating device 6 and automatically enter the purification chamber 4 through the vent pipe 11, and the organic gas does not need to be guided to enter the purification chamber 4 by an additional means.
Example 9
In addition to embodiment 2, a dust collector (not shown) is connected to the air inlet pipe 9.
In this embodiment, before waste gas enters into adsorption chamber 1 through intake pipe 9, remove dust through the dust remover to waste gas and handle, be convenient for get rid of impurities such as dust, water droplet in with waste gas through the dust remover, guarantee the quality of waste gas, the organic gas in the waste gas of being convenient for adsorbs on conveyer belt 5.
Claims (10)
1. A microwave plasma waste gas purification method is characterized by comprising the following steps:
adsorbing, namely passing a conveyor belt containing an adsorbing material through an adsorbing chamber containing organic waste gas so as to adsorb the organic waste gas on the adsorbing material;
desorbing, namely enabling the conveyor belt adsorbed with the organic gas to pass through a desorption chamber provided with a heating device so that the organic gas is separated out from the adsorption material;
cooling, namely enabling the desorbed conveyor belt to pass through a cooling chamber provided with a cooling device so as to cool the conveyor belt;
passing the cooled conveyor belt through an adsorption chamber, and repeating the steps of adsorption, desorption and cooling;
and (4) purifying, wherein the separated organic gas enters a purifying chamber provided with a microwave plasma generator, so that the organic gas and high-energy active substances generated by the microwave plasma generator are subjected to oxidation reaction and then discharged.
2. A microwave plasma waste gas purification device is characterized by comprising an adsorption chamber, a desorption chamber, a cooling chamber, a purification chamber, a conveyor belt, a heating device, a cooling device and a microwave plasma generator;
the adsorption chamber is provided with an air inlet pipe and an air outlet pipe;
the heating device is arranged in the desorption chamber, and a vent pipe is arranged between the desorption chamber and the purification chamber;
the microwave plasma generator is arranged in a purifying chamber, and the purifying chamber is provided with an exhaust pipe;
the cooling device is arranged in the cooling chamber;
the conveyer belt is used for adsorbing organic gas, passes through the adsorption chamber and extends to the desorption chamber, passes through the desorption chamber and extends to the cooling chamber, passes through the cooling chamber and extends to the adsorption chamber.
3. A microwave plasma exhaust gas purifying apparatus as claimed in claim 2, wherein the conveyor belt comprises a protective layer and an adsorption layer disposed on the protective layer, the protective layer is made of glass fiber filter cloth, and the adsorption layer is made of activated carbon material.
4. A microwave plasma exhaust gas purifying apparatus as claimed in claim 3, wherein there are two of said adsorption layers, and one adsorption layer is provided on each of upper and lower surfaces of said protective layer.
5. A microwave plasma exhaust gas purifying device according to claim 2, wherein the cooling device includes a heat exchanger disposed on the conveyor belt and having a lower side contacting and pressing with the conveyor belt, and a radiator disposed on the heat exchanger, the radiator includes a housing having a cavity, the housing is provided with a liquid inlet pipe and a liquid outlet pipe which are communicated with the cavity, the liquid inlet pipe and the liquid outlet pipe are communicated with a circulation pipe, the circulation pipe is provided with a condenser and a circulation pump, and the condenser is communicated with the liquid outlet pipe.
6. A microwave plasma exhaust gas purification device as claimed in claim 5, wherein a liquid storage cavity is provided in the housing, the liquid storage cavity is communicated with the liquid inlet pipeline, a plurality of micro channels are provided between the liquid storage cavity and the accommodating cavity, and the cooling liquid in the liquid storage cavity is pressurized by the micro channels to enter the accommodating cavity to exchange heat with the heat exchanger.
7. A microwave plasma exhaust gas purification apparatus according to claim 5 or 6, wherein the heat exchanger is a heat conductive coating.
8. A microwave plasma exhaust gas purifying apparatus as claimed in claim 2, wherein a plurality of driven pulleys supporting the conveyor belt driven by the driving motor to reciprocate are provided in the adsorption chamber, the desorption chamber and the cooling chamber.
9. A microwave plasma exhaust gas purifying apparatus as claimed in claim 2, wherein said purifying chamber is provided above the desorption chamber.
10. A microwave plasma exhaust gas purifying apparatus as claimed in claim 2, wherein a dust remover is connected to the intake pipe.
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| CN202210029630.6A CN114345092A (en) | 2022-01-11 | 2022-01-11 | Microwave plasma waste gas purification method and device |
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