CN107158936B - Microwave plasma photo-oxygen catalytic purification equipment - Google Patents
Microwave plasma photo-oxygen catalytic purification equipment Download PDFInfo
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- CN107158936B CN107158936B CN201710403870.7A CN201710403870A CN107158936B CN 107158936 B CN107158936 B CN 107158936B CN 201710403870 A CN201710403870 A CN 201710403870A CN 107158936 B CN107158936 B CN 107158936B
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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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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- Environmental & Geological Engineering (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses microwave plasma photo-oxygen catalytic purification equipment, which relates to the technical field of catalytic purification of organic waste gas and comprises an electric control cabinet and a purification cabinet, wherein the electric control cabinet is connected with the purification cabinet in an isolated way; the wave head mounting plate and the wave head air pipe are respectively vertically arranged in the electric control cabinet, the wave head mounting plate is provided with a wave head mounting hole in an excavating mode, the side wall of the wave head air pipe is provided with a through hole in an excavating mode, one end of a microwave head of the microwave generator is fixedly arranged on the wave head mounting hole, and the other end of the microwave head of the microwave generator is fixedly arranged on the through hole.
Description
Technical Field
The invention relates to the technical field of catalytic purification of organic waste gas, in particular to microwave plasma photo-oxygen catalytic purification equipment.
Background
With the rapid development of the breeding industry, the feed processing industry is rapidly developed, the process flow is more and more complicated, waste gas containing dust, high temperature, high humidity and stink is generated in the processes of crushing, proportioning, mixing, puffing, granulating, drying, cooling and the like of raw materials in the feed processing production process, main components of stink substances contained in the stink waste gas comprise dimethylamine, sulfur-containing organic compounds and the like, the treatment method corresponding to the stink waste gas is relatively simple, the emission requirements of atmospheric pollutants and the emission requirements of the stink pollutants cannot be basically met, and the method is not suitable for the increasing environmental requirements of people.
At present, common odor waste gas treatment methods include an absorption method, an adsorption method, a biological method, a heat accumulation type oxidation method, a plasma cracking method, a UV photo-cracking method, a chemical oxidation method, a plant essential oil covering method and the like. The absorption method is to treat the waste gas by using a liquid absorbent to recover or remove one or more mixtures in the waste gas, can recover and utilize high-concentration substances, but has the advantages of selectivity in adsorption effect, larger consumption of the absorbent, larger occupied area, insufficient contact between the absorbent and the waste gas and limited applicability in the use process. The adsorption method is a method of absorbing organic waste gas in waste gas by using a solid absorbent, but the problem of regeneration of the absorbent needs to be considered when the adsorbent is used. The biological method adopts a specific microbial population to degrade the malodorous pollutants, has low energy consumption and no secondary pollution, but has more difficult culture conditions of the microbes and relatively higher investment and operation cost. The chemical oxidation method is to oxidize the malodorous pollutants by adopting a strong oxidant, the reaction conditions are easy to control, the operation is convenient, but the problems of high price and strong selectivity of the oxidant and uneven mixing of the oxidant and the waste gas exist, and secondary pollution can be caused by adding chemical reagents such as the oxidant and the like. Although the plant essential oil covering method can cover the odor in a short time, the method can not remove the odor molecules, can not fundamentally solve the odor and can not meet the emission standard of atmospheric pollutants. The plasma cracking method adopts high-voltage electric field discharge, has good odor removal effect, is influenced by the humidity of waste gas and the like, and has high maintenance difficulty.
The photocatalytic oxidation technology is a new green waste gas treatment technology, and a photochemical catalysis method is adopted to purify waste gas. The treatment of the waste gas is mainly realized by the following two aspects:
1. the equipment generates high-energy UV ultraviolet light beam to irradiate malodorous gas, such as ammonia, trimethylamine, hydrogen sulfide, methylthio hydrogen, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide, styrene and sulfide H2S, VOC, the molecular chain of foul gas such as benzene, toluene, xylene, etc. generates cracking effect to degrade and convert into low molecular compound;
2. the high ozone UV light beam generated by the equipment differentiates oxygen molecules in the air to generate free oxygen, and the free oxygen and the oxygen molecules are combined to further generate ozone, so that the strong oxidation and dip dyeing effects are generated on organic matters such as malodorous gas and other irritant odor;
in addition, the UV light beam can also crack molecular bonds of bacteria in the malodorous gas, Damage Nucleic Acid (DNA) of the bacteria, and then carry out oxidation and reverberation through ozone to thoroughly deodorize and kill the bacteria.
Chinese utility model patent with grant publication number CN203540284U and grant publication date 2014.04.16 discloses an exhaust gas purifying apparatus, including: the waste gas treatment box is internally provided with a plurality of ultraviolet light catalytic tubes; an electric box, its with exhaust-gas treatment case keeps apart and is connected, just electric box inside is equipped with a plurality of magnetic control modules, the magnetic control module includes a microwave plasma generator, the microwave plasma drive of microwave plasma generator accessible production ultraviolet ray catalysis pipe.
However, the electric loop of the utility model achieves the purpose of heat dissipation by arranging one main loop and one standby loop, the heat dissipation effect is not ideal, and the operation cost is increased; in addition, when more dust is accumulated in the waste gas treatment box, the cover of the observation window needs to be opened, and clear water or diluent is sprayed into the waste gas cavity, so that the cleaning is inconvenient.
Disclosure of Invention
The invention aims to: in order to solve the problem that the heat dissipation effect of an electric loop of the existing photo-oxidation catalytic purification equipment is not ideal, the invention provides microwave plasma photo-oxidation catalytic purification equipment.
The invention specifically adopts the following technical scheme for realizing the purpose:
the utility model provides a microwave plasma light oxygen catalytic purification equipment, includes automatically controlled cabinet and purification cabinet, automatically controlled cabinet keeps apart with the purification cabinet and is connected, is provided with microwave generator in the automatically controlled cabinet, is provided with the fluorescent tube support in the purification cabinet the fluorescent tube support is put on the shelf and is equipped with a plurality of microwave electrodeless lamps, its characterized in that:
the top of the electric control cabinet is provided with a vent hole, the vent hole is provided with an axial flow fan, and the bottom of the electric control cabinet is provided with a heat dissipation hole corresponding to the vent hole; the wave head mounting plate and the wave head air pipe are vertically arranged in the electric control cabinet respectively, wave head mounting holes are formed in the wave head mounting plate in an excavating mode, through holes are formed in the side wall of the wave head air pipe in an excavating mode, one end of a microwave head of the microwave generator is fixedly arranged on the wave head mounting holes, and the other end of the microwave head of the microwave generator is fixedly arranged on the through holes.
Furthermore, a rotary spray header is arranged in the purification cabinet and is connected with a water pump through a connecting pipe.
Furthermore, an axial flow fan A is further arranged at the top of the wave head air pipe.
Furthermore, a wave head sealing plate for sealing the wave head is arranged between the wave head mounting hole and the microwave head.
Furthermore, a red copper plate for preventing electromagnetic leakage is filled between the electric control cabinet and the purification cabinet.
Further, be provided with air inlet and gas outlet on the purifying cabinet air inlet and gas outlet department are provided with the electromagnetic shield net respectively, the junction of electromagnetic shield net and purifying cabinet is provided with the electromagnetic shield strip.
Furthermore, a drainage groove is arranged at the bottom of the inner side of the purification cabinet.
Furthermore, a slope type rain cover is arranged at the top of the electric control cabinet.
The invention has the following beneficial effects:
1. the top of the electric control cabinet is provided with a vent hole, the vent hole is provided with an axial flow fan, the bottom of the electric control cabinet is provided with a heat dissipation hole corresponding to the vent hole, and the electric control cabinet can be ventilated, so that the working environment temperature of the microwave generator is lower; the wave head mounting plate and the wave head air pipe are respectively and vertically arranged in the electric control cabinet, the microwave head of the microwave generator is arranged between the wave head mounting plate and the wave head air pipe, the design of the existing dispersion air pipe is changed, a centralized air pipe heat dissipation mode is adopted, the heat dissipation effect is good, the wave head air pipe can also play a role in reinforcing the microwave head, the mounting rigidity of the microwave generator is increased, the equipment is more stable and is not easy to damage in the transportation and carrying processes, meanwhile, the equipment is more attractive, external dust is not easy to enter the microwave head, and the dustproof effect is achieved.
2. The rotary spray header is arranged in the purification cabinet and is connected with the water pump arranged outside the purification cabinet through the connecting pipe, the control of the water pump is realized through the PLC, when more dust is accumulated in the purification cabinet and needs to be cleaned, the PLC controls the water pump to convey cleaning water to the rotary spray header, the rotary spray header rotates in the purification cabinet under the driving of water pressure, and further the inner wall and the lamp tube of the purification cabinet are washed, so that automatic cleaning is realized, the automation degree of equipment is improved, and the device is suitable for industrial popularization and application.
3. The axial flow fan A is arranged at the top of the wave head air pipe, so that high temperature generated during the operation of the microwave head can be further discharged out of the electric control cabinet, the heat dissipation effect of equipment is enhanced, an electric loop can normally operate for a long time, and the working efficiency is improved.
4. A wave head sealing plate for sealing the wave head is arranged between the wave head mounting hole and the microwave head, so that water vapor in the electric control cabinet can be prevented from entering the microwave head and influencing the normal operation of the microwave generator.
5. The red copper plate for preventing electromagnetic leakage is filled between the electric control cabinet and the purification cabinet, so that the electromagnetic leakage can be effectively prevented.
6. The purification cabinet is provided with the air inlet and the air outlet, the air inlet and the air outlet are respectively provided with the electromagnetic shielding net, and the connecting part of the electromagnetic shielding net and the purification cabinet is also provided with the electromagnetic shielding strip, so that electromagnetic leakage can be prevented, the intensity of an electromagnetic field in the purification cabinet is kept stable, and the microwave electrodeless lamp is ensured to be excited under the action of electromagnetic field energy.
7. The bottom of the inner side of the purification cabinet is also provided with a drainage groove, so that sewage in the purification cabinet can be conveniently drained.
8. The top of the electric control cabinet is also provided with a slope type rain cover, so that water drainage is facilitated, and when the equipment is placed outdoors, rainwater is prevented from entering electric equipment such as a microwave generator of the electric control cabinet and the like to interfere with the electric equipment.
Drawings
Fig. 1 is a schematic view of an internal structure of an electric control cabinet according to embodiment 1 of the present invention.
Fig. 2 is a schematic view of the internal structure of the purification cabinet of embodiment 1 of the present invention.
Fig. 3 is a left side view of embodiment 1 of the present invention.
Fig. 4 is a front view of an electric control cabinet according to embodiment 1 of the present invention.
Fig. 5 is a front view of the purification cabinet of embodiment 1 of the present invention.
Fig. 6 is a plan view of embodiment 1 of the present invention.
Fig. 7 is a schematic structural view of a wave head mounting plate according to embodiment 1 of the present invention.
Fig. 8 is a schematic structural view of a sealing plate of a wave head according to embodiment 1 of the present invention.
Fig. 9 is a schematic structural view of a bellows head duct according to embodiment 1 of the present invention.
Fig. 10 is a schematic view of a connection structure of the electromagnetic shielding net and the purification cabinet according to embodiment 1 of the present invention.
Fig. 11 is a partial sectional view of a top view of embodiment 2 of the present invention.
Fig. 12 is a schematic structural view of a wave head mounting plate according to embodiment 2 of the present invention.
Fig. 13 is a schematic view of the internal structure of embodiment 2 of the present invention.
Fig. 14 is a partial sectional view of the left side view of embodiment 2 of the present invention.
Fig. 15 is a front view of embodiment 2 of the present invention.
Fig. 16 is a schematic structural view of embodiment 3 of the present invention.
Fig. 17 is a left side view of embodiment 3 of the present invention.
Reference numerals: 1. an electric control cabinet; 1-1, vent holes; 1-2, axial flow fan; 1-3, a microwave generator; 1-4, mounting a wave head; 1-5, wave head mounting holes; 1-6, wave head sealing plate; 1-7, heat dissipation holes; 1-8, wave head air pipe; 1-9, through holes; 1-10 parts of rain cover; 2. changing the square into a circle; 3. a purification cabinet; 3-1, lamp tube bracket; 3-2, rotating a spray header; 3-3, microwave electrodeless lamp; 3-4, an air outlet; 3-5, electromagnetic shielding net; 3-6, an air inlet; 3-7, a water drainage groove.
Detailed Description
For a better understanding of the present invention by those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and the following examples.
Example 1
As shown in fig. 1 to 10, this embodiment provides a microwave plasma photo-oxygen catalytic purification apparatus, including an electric control cabinet 1 and a purification cabinet 3, where the electric control cabinet 1 is connected to the purification cabinet 3 in an isolated manner, a copper plate for preventing electromagnetic leakage is filled in a gap between the electric control cabinet 1 and the purification cabinet 3, a lamp tube bracket 3-1 is disposed in the purification cabinet 3, a plurality of microwave electrodeless lamps 3-3 are mounted on the lamp tube bracket 3-1, a microwave generator 1-3 is disposed in the electric control cabinet 1, a vent hole 1-1 is formed at the top of the electric control cabinet 1, an axial flow fan 1-2 is disposed at the vent hole 1-1, and heat dissipation holes 1-7 corresponding to the vent hole 1-1 are formed at the bottom of the electric control cabinet 1; wave head mounting plates 1-4 and wave head air pipes 1-8 are respectively vertically arranged in the electric control cabinet 1, wave head mounting holes 1-5 are dug on the wave head mounting plates 1-4, through holes 1-9 are dug on the side walls of the wave head air pipes 1-8, one ends of the microwave heads of the microwave generators 1-3 are fixedly arranged on the wave head mounting holes 1-5, and the other ends of the microwave heads are fixedly arranged on the through holes 1-9.
The automatic cleaning device is characterized in that a rotary spray header 3-2 is arranged in the purification cabinet 3, the rotary spray header 3-2 is connected with a water pump arranged outside the purification cabinet 3 through a connecting pipe, the control of the water pump is realized through a PLC (programmable logic controller), when more dust is accumulated in the purification cabinet 3 and needs to be cleaned, the PLC controls the water pump to convey cleaning water to the rotary spray header 3-2, the rotary spray header 3-2 rotates in the purification cabinet 3 under the driving of water pressure, and then the inner wall of the purification cabinet 3 and a lamp tube are washed, so that the automatic cleaning is realized.
The top of the wave head air pipe 1-8 is also provided with an axial flow fan A (not shown in the figure), and the axial flow fan A can discharge high temperature generated during the operation of the microwave head out of the electric control cabinet 1, so that the heat dissipation effect of the equipment is enhanced, an electric loop can normally operate for a long time, and the working efficiency is improved.
A wave head sealing plate 1-6 for sealing the wave head is arranged between the wave head mounting hole 1-5 and the microwave head.
The purification cabinet 3 is provided with an air inlet 3-6 and an air outlet 3-4, the air inlet 3-6 and the air outlet 3-4 are respectively provided with an electromagnetic shielding net 3-5, and the electromagnetic shielding strip is arranged at the joint of the electromagnetic shielding net 3-5 and the purification cabinet 3, so that electromagnetic leakage can be prevented, the intensity of an electromagnetic field in the purification cabinet 3 is kept stable, and the microwave electrodeless lamp 3-3 is ensured to be excited under the action of the electromagnetic field energy.
The bottom of the inner side of the purification cabinet 3 is provided with water drainage grooves 3-7, so that sewage after the purification cabinet 3 is cleaned can be discharged out of the purification cabinet 3, and the automation degree of equipment is improved.
The top of the electric control cabinet 1 of the embodiment is provided with a vent hole 1-1, an axial flow fan 1-2 is arranged at the vent hole 1-1, and the bottom of the electric control cabinet 1 is provided with a heat dissipation hole 1-7 corresponding to the vent hole 1-1, so that the electric control cabinet 1 can be ventilated and ventilated, and the working environment temperature of the microwave generator 1-3 is lower; and the electric control cabinet 1 of this embodiment is internally and respectively and vertically provided with a wave head mounting plate 1-4 and a wave head air pipe 1-8, the microwave head of the microwave generator 1-3 is arranged between the wave head mounting plate 1-4 and the wave head air pipe 1-8, the existing design of a dispersed air pipe is changed, and a centralized air pipe heat dissipation mode is adopted, so that the heat dissipation effect is good, the wave head air pipe 1-8 can also play a role in reinforcing the microwave head, the mounting rigidity of the microwave generator 1-3 is increased, the equipment is more stable and difficult to damage in the transportation and carrying process, meanwhile, the equipment is more attractive, external dust is difficult to enter the microwave head, and the dustproof effect is achieved.
Example 2
As shown in fig. 11 to fig. 15, the present embodiment is further optimized based on embodiment 1, specifically:
the automatically controlled cabinet 1 of this embodiment transversely sets up in purifying cabinet 3 top to keep apart with purifying cabinet 3 and be connected, area that can practice thrift equipment more like this has increased the application scope of this equipment, and the equal vertical setting of microwave electrodeless lamp 3-3 and fluorescent tube support 3-1 can improve the utilization ratio of microwave energy in purifying cabinet 3, reduces the power of use of equipment, thereby reduces the electrical energy loss, makes ozone can fully contact with waste gas, improves the treatment rate.
Example 3
As shown in fig. 16 and 17, the present embodiment is further optimized based on embodiment 1, specifically:
in order to facilitate the outdoor use of the equipment, the top of the electric control cabinet 1 is provided with a slope type rain cover 1-10, the cabinet body of the invention adopts an SUS304 rectangular square tube welding frame, the structure is beautiful and firm, and the equipment of the invention adopts a module design, and the electric control cabinet 1 and the purification cabinet 3 can be optimally configured according to the conditions of an installation site and the actual requirement of waste gas treatment.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (5)
1. The utility model provides a microwave plasma light oxygen catalytic purification equipment, includes automatically controlled cabinet (1) and purification cabinet (3), and automatically controlled cabinet (1) is kept apart with purification cabinet (3) and is connected, is provided with microwave generator (1-3) in automatically controlled cabinet (1), is provided with fluorescent tube support (3-1) in purification cabinet (3), has set up a plurality of microwave electrodeless lamps (3-3) on fluorescent tube support (3-1), its characterized in that:
the top of the electric control cabinet (1) is provided with a vent hole (1-1), the vent hole (1-1) is provided with an axial flow fan (1-2), and the bottom of the electric control cabinet (1) is provided with a heat dissipation hole (1-7) corresponding to the vent hole (1-1); a wave head mounting plate (1-4) and a wave head air pipe (1-8) are respectively vertically arranged in the electric control cabinet (1), wave head mounting holes (1-5) are dug on the wave head mounting plate (1-4), through holes (1-9) are dug on the side wall of the wave head air pipe (1-8), one end of a microwave head of the microwave generator (1-3) is fixedly arranged on the wave head mounting plate (1-4), and the other end is fixedly arranged on the through holes (1-9);
an axial flow fan A is arranged at the top of the wave head air pipe (1-8); a wave head sealing plate (1-6) for sealing the microwave head is arranged between the wave head mounting hole (1-5) and the microwave head; and a red copper plate for preventing electromagnetic leakage is filled between the electric control cabinet (1) and the purification cabinet (3).
2. The microwave plasma photo-oxygen catalytic purification device according to claim 1, wherein: a rotary spray header (3-2) is arranged in the purification cabinet (3), and the rotary spray header (3-2) is connected with a water pump through a connecting pipe.
3. The microwave plasma photo-oxygen catalytic purification device according to claim 1, wherein: an air inlet (3-6) and an air outlet (3-4) are arranged on the purifying cabinet (3), electromagnetic shielding nets (3-5) are respectively arranged at the air inlet (3-6) and the air outlet (3-4), and electromagnetic shielding strips are arranged at the joints of the electromagnetic shielding nets (3-5) and the purifying cabinet (3).
4. The microwave plasma photo-oxygen catalytic purification device according to claim 2, wherein: and a drainage groove (3-7) is arranged at the bottom of the inner side of the purification cabinet (3).
5. A microwave plasma photo-oxygen catalytic purification apparatus as claimed in claim 1 or 2, wherein: the top of the electric control cabinet (1) is provided with a slope type rain cover (1-10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710403870.7A CN107158936B (en) | 2017-06-01 | 2017-06-01 | Microwave plasma photo-oxygen catalytic purification equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710403870.7A CN107158936B (en) | 2017-06-01 | 2017-06-01 | Microwave plasma photo-oxygen catalytic purification equipment |
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| CN107158936A CN107158936A (en) | 2017-09-15 |
| CN107158936B true CN107158936B (en) | 2019-12-24 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014020958A1 (en) * | 2012-07-31 | 2014-02-06 | 株式会社 ケミカルオート | System for recycling coated electric wire |
| JP2016198725A (en) * | 2015-04-10 | 2016-12-01 | 新日本電工株式会社 | Method for producing noble metal-supported catalyst for exhaust gas purification |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128086A (en) * | 2014-07-09 | 2014-11-05 | 重展(上海)实业有限公司 | Photo-oxygen catalysis waste gas purifying device |
| CN105233684A (en) * | 2015-11-17 | 2016-01-13 | 苏州韵蓝环保科技有限公司 | Waterproof light-oxygen catalyzing deodorizing type waste gas treatment device |
| CN105457462A (en) * | 2015-12-22 | 2016-04-06 | 凯天环保科技股份有限公司 | Microwave electrodeless ultraviolet oxidation purification device for VOCs (Volatile Organic Compounds) |
| CN205730876U (en) * | 2016-05-09 | 2016-11-30 | 鹰儒环保科技（上海）有限公司 | Off-gas cleaning equipment |
| CN206064155U (en) * | 2016-08-29 | 2017-04-05 | 深圳市高斯宝环境技术有限公司 | Waste gas treatment device |
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2017
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014020958A1 (en) * | 2012-07-31 | 2014-02-06 | 株式会社 ケミカルオート | System for recycling coated electric wire |
| JP2016198725A (en) * | 2015-04-10 | 2016-12-01 | 新日本電工株式会社 | Method for producing noble metal-supported catalyst for exhaust gas purification |
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