CN104084012A - Low-temperature plasma waste gas processing method - Google Patents
Low-temperature plasma waste gas processing method Download PDFInfo
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- CN104084012A CN104084012A CN201410337197.8A CN201410337197A CN104084012A CN 104084012 A CN104084012 A CN 104084012A CN 201410337197 A CN201410337197 A CN 201410337197A CN 104084012 A CN104084012 A CN 104084012A
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Abstract
The invention relates to a low-temperature plasma waste gas processing method. The low-temperature plasma waste gas processing method is characterized in that waste gas enters the inside of a stainless steel pipe under the action of an exhaust fan, a mace penetrating through the stainless steel pipe in a suspended manner is connected with a positive pole, the stainless steel pipe is connected with a negative pole, electrification is performed, the mace realizes point discharge, an electric field is generated in the stainless steel pipe to generate a corona phenomenon, high-energy electrons are generated under the acceleration action of the electric field to be used for breaking down and decomposing a molecular bond in the waste gas, and the waste gas subjected to being processed in a processing chamber is further filtered through an activated carbon filter screen. Compared with the prior art, the low-temperature plasma waste gas processing method provided by the invention has the advantages that the high-energy electrons are generated in the stainless steel pipe under the acceleration action of the electric field, and when an electron average energy exceeds a target governing object molecule chemical bond energy, the molecular bond is broken down, thus a purpose of eliminating a gaseous pollutant is achieved, contaminant molecules are efficiently decomposed, the processing energy consumption is low, and secondary pollution is avoided.
Description
Technical field
The present invention relates to waste gas purification apparatus technical field, particularly a kind of low-temperature plasma waste gas processing method.
Background technology
Along with the development of industrial economy, the volatility waste gas that the industries such as chemical industry, oil and coating produce is increasing, and these waste gas have not only brought serious pollution to environment, also the health of human body have been produced to great harm.Process now these waste gas, conventionally adopt combustion method, oxidizing process etc., but these methods all exist expense higher and easily cause the defects such as secondary pollution.At present, lower temperature plasma technology is remarkable aspect gaseous contaminant improvement, low temperature plasma be continue solid-state, liquid, material the 4th state after gaseous state, in the time that applied voltage reaches the discharge voltage of gas, gas is just breakdown, generation comprises electronics, various ions, atom and free radical are at interior mixture, although electron temperature is very high in discharge process, but heavy particle temperature is very low, whole system presents low-temperature condition, so be called low temperature plasma, the general principle that adopts lower temperature plasma technology to carry out waste gas purification is: under the acceleration of electric field, produce high energy electron, in the time that high energy electron average energy exceedes target improvement thing molecular chemistry bond energy, molecular scission, reach the object of eliminating gaseous contaminant, this technology is easy to make contaminant molecule efficiently to decompose, it has become current research forward position.But because plasma is a cross discipline comprising on the basic subjects such as discharge physics, discharge chemistry, Chemical Reaction Engineering, electronic technology and material science, therefore, at present this technology is not yet ripe, and the cost of at present a lot of low temperature plasma waste gas cleaning devices is high and still can produce secondary pollution.
In order to address the above problem, now propose a kind ofly can avoid secondary pollution and the low a kind of low-temperature plasma waste gas processing method of cost.
Summary of the invention
The present invention has overcome above-mentioned the deficiencies in the prior art, has proposed a kind ofly can avoid secondary pollution and the low a kind of low-temperature plasma waste gas processing method of cost.
Technical scheme of the present invention is achieved in that
A kind of low-temperature plasma waste gas processing method, comprising:
Waste gas enters in stainless-steel pipe under the effect of air exhauster, the interior unsettled mace that is covered with pointed tooth that is installed with of this stainless-steel pipe, stainless-steel pipe and mace are all the direction of travel settings along air-flow, and mace does not contact with the inwall of stainless-steel pipe and both connect respectively the both positive and negative polarity of high-tension electricity;
Then switch on, mace is realized point discharge, produces corona phenomenon thereby produce electric field in stainless-steel pipe, and under the acceleration of electric field, generation high energy electron is used so that the molecular scission in waste gas decomposes.
Specifically, between mace and stainless-steel pipe, do not contact to provide arcing distance; Mace connects anodal, stainless-steel pipe connects negative pole, mace is realized point discharge, in stainless-steel pipe, produce electric field and produce corona phenomenon, under the acceleration of electric field, produce high energy electron, in the time that high energy electron average energy exceedes target improvement thing molecular chemistry bond energy, molecular scission, reaches the object of eliminating gaseous contaminant.
As preferably, treated waste gas further filters through activated charcoal strainer again; Described activated charcoal strainer is honeycomb bulk, and activated charcoal strainer is arranged in activated charcoal strainer framework, and activated charcoal strainer framework is arranged in casing by the activated charcoal strainer slide rail being arranged in casing.
Adopt the invention has the beneficial effects as follows of technique scheme:
A kind ofly can avoid secondary pollution and the low a kind of low-temperature plasma waste gas processing method of cost.In the present invention, pollute waste gas and enter in stainless-steel pipe, high energy electron, free radical isoreactivity particle and waste gas generation effect in the low temperature plasma in pipe are decomposed the molecule in waste gas within the extremely short time, produce ozone and water, finally produce carbon dioxide and water; Activated charcoal strainer, in order to the harmful substance in further absorption waste gas, has realized further purification; Specifically, low-temperature plasma degradation pollutant general principle is under the acceleration of electric field, produce high energy electron, in the time that electronics average energy exceedes target improvement thing molecular chemistry bond energy, molecular scission, reach the object of eliminating gaseous contaminant, this technology is easy to make the efficient decomposition of contaminant molecule and processes energy consumption low.
Brief description of the drawings
Fig. 1 is that in embodiment, air inlet, stainless-steel pipe, mace, air outlet and activated charcoal strainer are placed in the cooperation schematic diagram in process chamber.
Detailed description of the invention
The specific embodiment of the present invention is as follows:
Embodiment: a kind of low-temperature plasma waste gas processing method, as shown in Figure 1, comprising:
Waste gas enters in stainless-steel pipe 2 by air inlet 5 under the effect of air exhauster 1, and at the interior unsettled mace 3 that is covered with pointed tooth that is installed with of stainless-steel pipe 2, stainless-steel pipe 2 is all the direction of travel settings along air-flow with mace 3; Mace 3 does not contact with the inwall of stainless-steel pipe 2 and both connect respectively the both positive and negative polarity of high-tension electricity;
Then switch on, mace 3 is realized point discharge, produces corona phenomenon at the interior generation electric field of stainless-steel pipe 2, and under the acceleration of electric field, generation high energy electron is used so that the molecular scission in waste gas decomposes;
Treated waste gas further filters through activated charcoal strainer 4 again, finally enters atmosphere by air outlet 6.
Wherein, stainless-steel pipe 2 with the fixing means between mace 3 is: be provided with the parallel and symmetrical stainless steel steelframe 7 in two sides and be arranged on the parallel and symmetrical two sides stainless-steel sheet 8 between two sides stainless steel steelframe 7, parallel between stainless steel steelframe 7 and stainless-steel sheet 8, stainless steel steelframe 7 comprises steelframe frame 9 and is arranged on many stainless steel steel bars 10 in steelframe frame 9; On two sides stainless-steel sheet 8, be vertically penetrated with the many stainless-steel pipes that are parallel to each other 2, in every stainless-steel pipe 2, be installed with a mace 3 that is covered with pointed tooth, stainless-steel pipe 2 is all the direction of travel settings along air-flow with mace 3, and mace 3 does not contact with the inwall of stainless-steel pipe 2 and both connect respectively the both positive and negative polarity of high-tension electricity; All extend at the two ends of described mace 3 galvanized pipe 11, a part for galvanized pipe 11 is exposed outside stainless-steel pipe 2,11 exposed terminations in stainless-steel pipe 2 outsides of galvanized pipe are fixedly connected on stainless steel steel bar 10 and make mace 3 and the unsettled axis through stainless-steel pipe 2 of galvanized pipe 11 being arranged on mace 3, and mace 3 is 4.5cm with the distance of stainless-steel pipe 2 inwalls; Between steelframe frame 9 and stainless-steel sheet 8, be connected and fixed by ceramic insulator 12; Stainless-steel pipe 2 is fixed by welding manner with the contact portion of stainless-steel sheet 8; Described galvanized pipe 11 is bolted to connection on stainless steel steel bar 10; The two ends of described ceramic insulator 12 are bolted on respectively on stainless steel steelframe 7 and stainless-steel sheet 8; Described stainless steel steelframe 7, stainless-steel sheet 8, stainless-steel pipe 2, mace 3 etc. are all placed in process chamber 14, are provided with electrode slide rail 13 in order to realize dismounting and the replacing of the entirety such as stainless steel steelframe 7, stainless-steel sheet 8, stainless-steel pipe 2 in process chamber 14.
The concrete course of work is, polluting waste gas enters in stainless-steel pipe 2, high energy electron, free radical isoreactivity particle and waste gas generation effect in low temperature plasma in pipe, molecule in waste gas is decomposed within the extremely short time, produce ozone and water, final carbon dioxide and the water of producing, activated charcoal strainer 4, in order to the harmful substance in further absorption waste gas, has realized further purification.
Claims (2)
1. a low-temperature plasma waste gas processing method, is characterized in that:
Waste gas enters in stainless-steel pipe under the effect of air exhauster, the interior unsettled mace that is covered with pointed tooth that is installed with of this stainless-steel pipe, stainless-steel pipe and mace are all the direction of travel settings along air-flow, and mace does not contact with the inwall of stainless-steel pipe and both connect respectively the both positive and negative polarity of high-tension electricity;
Then switch on, mace is realized point discharge, produces corona phenomenon thereby produce electric field in stainless-steel pipe, and under the acceleration of electric field, generation high energy electron is used so that the molecular scission in waste gas decomposes.
2. a kind of low-temperature plasma waste gas processing method according to claim 1, is characterized in that: treated waste gas further filters through activated charcoal strainer again; Described activated charcoal strainer is honeycomb bulk, and activated charcoal strainer is arranged in activated charcoal strainer framework, and activated charcoal strainer framework is arranged in casing by the activated charcoal strainer slide rail being arranged in casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410337197.8A CN104084012A (en) | 2014-07-15 | 2014-07-15 | Low-temperature plasma waste gas processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410337197.8A CN104084012A (en) | 2014-07-15 | 2014-07-15 | Low-temperature plasma waste gas processing method |
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| CN104084012A true CN104084012A (en) | 2014-10-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642108A (en) * | 2016-01-06 | 2016-06-08 | 中国科学院力学研究所 | Method and system for recycling and treating CO in metallurgical industry |
| CN106582222A (en) * | 2017-02-14 | 2017-04-26 | 太仓联洲机械设备有限公司 | Low-temperature plasma filter |
| CN107694298A (en) * | 2017-11-15 | 2018-02-16 | 上海睿筑环境科技有限公司 | The method and apparatus of pollutant in processing gas |
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| JPH10137543A (en) * | 1996-11-11 | 1998-05-26 | Mitsubishi Heavy Ind Ltd | Device and method for treating streamer-discharge waste gas |
| CN201997244U (en) * | 2011-01-26 | 2011-10-05 | 上海凯展环保科技有限公司 | High-energy low-temperature plasma purifying device |
| CN103845996A (en) * | 2014-03-24 | 2014-06-11 | 德清天皓环保科技有限公司 | Plasma organic waste gas purifier |
| CN103906334A (en) * | 2014-03-18 | 2014-07-02 | 浙江菲尔特环保工程有限公司 | Low-temperature plasma generating device |
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2014
- 2014-07-15 CN CN201410337197.8A patent/CN104084012A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10137543A (en) * | 1996-11-11 | 1998-05-26 | Mitsubishi Heavy Ind Ltd | Device and method for treating streamer-discharge waste gas |
| CN201997244U (en) * | 2011-01-26 | 2011-10-05 | 上海凯展环保科技有限公司 | High-energy low-temperature plasma purifying device |
| CN103906334A (en) * | 2014-03-18 | 2014-07-02 | 浙江菲尔特环保工程有限公司 | Low-temperature plasma generating device |
| CN103845996A (en) * | 2014-03-24 | 2014-06-11 | 德清天皓环保科技有限公司 | Plasma organic waste gas purifier |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642108A (en) * | 2016-01-06 | 2016-06-08 | 中国科学院力学研究所 | Method and system for recycling and treating CO in metallurgical industry |
| CN106582222A (en) * | 2017-02-14 | 2017-04-26 | 太仓联洲机械设备有限公司 | Low-temperature plasma filter |
| CN107694298A (en) * | 2017-11-15 | 2018-02-16 | 上海睿筑环境科技有限公司 | The method and apparatus of pollutant in processing gas |
| CN107694298B (en) * | 2017-11-15 | 2024-03-22 | 上海睿筑环境科技有限公司 | Method and apparatus for treating contaminants in gas |
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Application publication date: 20141008 |
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