CN204865493U - A clean system for stench waste gas - Google Patents
A clean system for stench waste gas Download PDFInfo
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- CN204865493U CN204865493U CN201520396831.5U CN201520396831U CN204865493U CN 204865493 U CN204865493 U CN 204865493U CN 201520396831 U CN201520396831 U CN 201520396831U CN 204865493 U CN204865493 U CN 204865493U
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- waste gas
- temperature plasma
- plasma
- pretreatment unit
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Abstract
The utility model relates to a clean system for stench waste gas, it is including low temperature plasma purifier for purify waste gas, waste gas gets into low temperature plasma purifier and is provided with preprocessing device before, preprocessing device has the multilayer packing layer, and preprocessing device's upper portion has the shower nozzle of spraying, sprays liquid through spraying the shower nozzle, carries out the preliminary treatment to waste gas. The utility model discloses a through the preliminary treatment to waste gas, dispose hydrogen sulfide (H2S), ammonia materials such as (NH3) in the waste gas in advance, formaldehyde, the volatile organic compounds gases such as (VOCss) of plasma purifier in to waste gas of being convenient for is handled effectively, has further improved the treatment effect of waste gas, has avoided hydrogen sulfide (H2S), ammonia materials such as (NH3) to be become SOx, NOx and continue the polluted environment by the low temperature plasma oxidation.
Description
Technical field
The utility model relates to waste gas purification apparatus, particularly has isoionic waste gas purification apparatus.
Background technology
Waste gas purification (Fluegaspurification) mainly pointer work that industrial waste gas such as dust granules thing, flue gas flue dust, gas with foreign flavor, toxic and harmful that industrial site produces are administered.Common waste gas purification has factory's fume and exhaust gas purifying, workshop dust waste gas purification, organic waste-gas purification, the purification of waste gas peculiar smell, acid-base waste gas purifying, purification of chemical waste gas etc.
Along with the development of global economy, various types of environmental pollution emerges in an endless stream, and has seriously jeopardized health and the existence of the mankind.In order to the safety of mankind itself, Environment control problem is extremely urgent.In recent years, the whole world emerges the various technology of many improvement industrial waste gases pollution problem, as ultrasonic wave, photochemical catalytic oxidation, bioanalysis, freezing, burning method etc.Wherein low temperature plasma processes poisonous, harmful and hard-degraded substance, slowly by people are accepted as the environment protection novel that a kind of efficient, low energy consumption, treating capacity are large, simple to operate.
Plasma is the 4th kind of state that the material being different from the states such as solid, liquid, gas exists, wherein containing ion, electronics, excited atom or the species such as molecule, free radical, because the positive and negative electric charge in gas in certain spatial dimension is equal, therefore be referred to as plasma.It is formed by a large amount of positive negative charged particles and neutral particle and is shown a kind of quasi-neutrality gas of collective behavior.Plasma can be divided into thermodynamical equilibrium plasma and non-equilibrium thermodynamics plasma.When electron temperature Te and ion temperature Ti and neutral particle temperature Tg is equal, plasma is in thermodynamic equilibrium state, is referred to as Equilibrium plasma or hot plasma, and its temperature is generally at 5 × more than 103K.As sun surface, owing to being in the high temperature of more than 6000 DEG C, all materials are all in plasma shape.As Te " Ti time, be called nonequilibrium plasma (non-thermalequilibriumplasma).Its electron temperature can up to more than 104k, and the temperature of ion in system and neutral particle can lower than 300 ~ 500K.Nonequilibrium plasma can be described as again low temperature plasma (coldplasma), and the plasma that general gas flow electric discharge produces belongs to this type.Owing to only having small part of gas molecule or atom to be activated in nonequilibrium plasma space, and whole gas energy is substantially unaffected on the whole, and system can maintain lower temperature, and energy ezpenditure maintains bottom line.Therefore apply highly beneficial in chemistry and environmental protection.Utilize high energy electron irradiation (decompose, be oxidized or reduction) chemical technology, by the structural deterioration of VOC (VOCs), and be converted into other form easily reclaimed or harmless materials, plasma degradation VOCs technology that Here it is.
The principle of lower temperature plasma technology process pollutant is: low-temperature plasma equipment is under the effect of extra electric field, what medium discharge produced takes in a large number and can bombard contaminant molecule by electronics, make it ionize, dissociate and excite, then physics, the chemical reaction of series of complex has just been caused, complicated macromolecule contaminant is made to change simple Small molecular safe material into, or make poisonous and harmful substance be transformed into material that is nontoxic or the low evil of low toxicity, thus pollutant is degraded removal.
As patent application 201210272848.0 discloses a kind of low-temperature plasma oxidator and low-temperature plasma deodoration system, its low-temperature plasma oxidator by shell body, inner housing, enter tracheae, escape pipe, quartz ampoule, oral siphon, outlet pipe, wire netting cylinder, positive electrode and negative electrode and form.Low-temperature plasma oxidator can allow the gas entered occur to ionize Sum decomposition therein, thus generation free electron, due to these free electrons as catalyst can rapidly with the pernicious gas in air particularly formaldehyde react, thus can by harmful substance particularly formaldehyde contained in physics mode filtering air; In addition, low-temperature plasma deodoration system designed by the present invention, the low-temperature plasma oxidator of above-mentioned design is adopted to match with whirlwind tank, retort and sprayed tank, thus can more effectively comprehensively process air, effectively improve air quality, reduce pernicious gas particularly formaldehyde harm that environment and operator are caused.
But above-mentioned plasma oxidation device and the gas such as deodoration system PARA FORMALDEHYDE PRILLS(91,95), volatile organic matter (VOCs) have a significant effect, to hydrogen sulfide (H
2s), ammonia (NH
3) etc. polluter administer undesirable because hydrogen sulfide (H
2s), ammonia (NH
3) under low-temperature plasma oxidation, produce SO
x, NO
xdeng sour gas, can acid rain be formed, to environment, there is serious harmful effect.
Utility model content
Based on this, primary and foremost purpose of the present utility model is to provide a kind of cleaning system for foul waste gas, and this waste gas cleaning system before plasma cleaning, can remove the hydrogen sulfide (H in waste gas effectively
2s), ammonia (NH
3) etc. material.
Another object of the present utility model is to provide a kind of cleaning system for foul waste gas, and this waste gas cleaning system structure is simple, is easy to realize, can be widely used in the process of various waste gas.
In order to reach above-mentioned order ground, the utility model realizes in the following manner.
A kind of cleaning system for foul waste gas, it includes low-temperature plasma purifying device, in order to purify waste gas, it is characterized in that described waste gas is provided with pretreatment unit before entering low-temperature plasma purifying device, described pretreatment unit has multilayer (plural layer) packing layer, and the top of pretreatment unit has spray nozzle, sprays spray liquid by spray nozzle, pretreatment is carried out to waste gas, sloughs the hydrogen sulfide (H in waste gas
2s), ammonia (NH
3) etc. material so that plasma purifier processes efficiently to waste gas.
Described pretreatment unit, it is also connected with cyclic water tank and water circulating pump, and described spray liquid flows out from the bottom of pretreatment unit, flow in cyclic water tank, then flow to pretreatment unit again through water circulating pump, carry out circular treatment, both be convenient to process waste gas, and can have economized on resources again.
Further, described cyclic water tank is also connected with water pipe, alkali liquid tank and oxidant tank, is added and after supplementing fresh mix liquid, continue to recycle, carry out hydrogen sulfide (H by water pipe, alkali liquid tank and oxidant tank to cyclic water tank
2s), ammonia (NH
3) etc. mass treatment.
Described pretreatment unit, is also connected with sewage disposal system, will be adsorbed with hydrogen sulfide (H
2s), ammonia (NH
3) etc. the spray liquid of material process.
Of the present utility model by the pretreatment to waste gas, dispose the hydrogen sulfide (H in waste gas in advance
2s), ammonia (NH
3) etc. material, being convenient to plasma purifier to gases such as the formaldehyde in waste gas, volatile organic matters (VOCs) processes effectively, further increases the treatment effect of waste gas, avoids hydrogen sulfide (H
2s), ammonia (NH
3) etc. material be oxidized to SO by low-temperature plasma
x, NO
xand continue contaminated environment.
Accompanying drawing explanation
The structural representation that Fig. 1 implements for the utility model.
Detailed description of the invention
Below, by reference to the accompanying drawings, concrete enforcement of the present utility model is elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Shown in Fig. 1, implement by the utility model the structural representation of the cleaning system for foul waste gas, shown in figure, this system includes blower fan 1, low-temperature plasma purifying device 2, plasma generator 3, pretreatment unit 4, water circulating pump 5, cyclic water tank 6, alkali liquid tank 7 and the several part of oxidant tank 8, is connected between each part by pipeline or pipeline.
Wherein, pretreatment unit 4 is pretreatment scrubbing towers 4, and its inside has spray nozzle and multiple filling layers layer, ejects spray liquid, have chemical treatments in spray liquid by spray nozzle, can with hydrogen sulfide (H
2s), ammonia (NH
3) etc. material carry out chemical reaction, thus by the hydrogen sulfide (H in waste gas
2s), ammonia (NH
3) etc. material remove; Filler in packing layer has that surface area is large and porosity large, can strengthen the contact area of spray liquid and waste gas, carrying out fast of promotion chemical reaction.
Generally, spray liquid can not utilize cmpletely from pretreatment scrubbing tower 4, therefore, will carry out recycled for multiple times, to economize on resources to spray liquid.So be connected to cyclic water tank 6 and water circulating pump 5 after pretreatment scrubbing tower 4, cyclic water tank 6 receives spray liquid, and spray liquid extracts to pretreatment scrubbing tower 4 by 5, water circulating pump.
And, cyclic water tank 4 is also connected with water pipe, alkali liquid tank 7 and oxidant tank 8, added to cyclic water tank by water pipe, alkali liquid tank and oxidant tank and after supplementing fresh mix liquid, continue to recycle, carry out sulfur-bearing (S) and nitrogenous (N) mass treatment.
Through the dusty gas collected and transmit, first enter bottom pretreatment scrubbing tower 4, fully contact with circulated sprinkling solution in by the process of packing layer, the ammonia (NH in gas
3), hydrogen sulfide (H
2s), the pollutant such as volatile organic matter (VOCs), dust and spray liquid dissolve, neutralize, be oxidized, adsorb after drop to bottom of device cyclic water tank 6 and then supplement fresh mix liquid Posterior circle and use.
Gas enters ion processing after the dehydration of process scrubbing tower 4 top.
Plasma generator 3 produces low-temperature plasma and enters low-temperature plasma purifying device 2, low-temperature plasma purifying device 2 is further processed waste gas by plasma, wherein odor causing substance and active oxygen ion generation oxidation reaction, and after thorough deodorizing, there is provided power through blower fan 1, enter in air by exhaust system is up to standard.
Of the present utility model by the pretreatment to waste gas, dispose the hydrogen sulfide (H in waste gas
2s), ammonia (NH
3) etc. material, being convenient to plasma purifier to gases such as the formaldehyde in waste gas, volatile organic matters (VOCs) processes effectively, further increases the treatment effect of waste gas.And this waste gas cleaning system structure is simple, is easy to realize, the exhaust-gas treatment in various situation can be widely used in.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. the cleaning system for foul waste gas, it includes low-temperature plasma purifying device, in order to purify waste gas, it is characterized in that described waste gas is provided with pretreatment unit before entering low-temperature plasma purifying device, described pretreatment unit has multiple filling layers layer, and the top of pretreatment unit has spray nozzle.
2., as claimed in claim 1 for the cleaning system of foul waste gas, it is characterized in that described pretreatment unit, it is also connected with cyclic water tank and water circulating pump.
3., as claimed in claim 2 for the cleaning system of foul waste gas, it is characterized in that described cyclic water tank is also connected with water pipe, alkali liquid tank and oxidant tank further.
4., as claimed in claim 2 for the cleaning system of foul waste gas, it is characterized in that described pretreatment unit, be also connected with sewage disposal system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520396831.5U CN204865493U (en) | 2015-06-10 | 2015-06-10 | A clean system for stench waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520396831.5U CN204865493U (en) | 2015-06-10 | 2015-06-10 | A clean system for stench waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204865493U true CN204865493U (en) | 2015-12-16 |
Family
ID=54809929
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|---|---|---|---|
| CN201520396831.5U Expired - Fee Related CN204865493U (en) | 2015-06-10 | 2015-06-10 | A clean system for stench waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204865493U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944494A (en) * | 2016-07-15 | 2016-09-21 | 缪琼华 | Treatment method for removing benzene series in petrochemical industrial waste gas |
| CN106110809A (en) * | 2016-07-15 | 2016-11-16 | 缪琼华 | A kind of remove the processing system of benzene homologues in petrochemical industry waste gas |
| CN106984163A (en) * | 2017-04-13 | 2017-07-28 | 广州市广环环保科技有限公司 | A kind of ammonia processing unit and ammonia denitrogenation method |
-
2015
- 2015-06-10 CN CN201520396831.5U patent/CN204865493U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105944494A (en) * | 2016-07-15 | 2016-09-21 | 缪琼华 | Treatment method for removing benzene series in petrochemical industrial waste gas |
| CN106110809A (en) * | 2016-07-15 | 2016-11-16 | 缪琼华 | A kind of remove the processing system of benzene homologues in petrochemical industry waste gas |
| CN107469601A (en) * | 2016-07-15 | 2017-12-15 | 缪琼华 | A kind of processing system for removing benzene homologues in petrochemical industry waste gas |
| CN107486003A (en) * | 2016-07-15 | 2017-12-19 | 缪琼华 | A kind of processing method for removing benzene homologues in petrochemical industry waste gas |
| CN107511043A (en) * | 2016-07-15 | 2017-12-26 | 缪琼华 | A kind of processing system for removing benzene homologues in petrochemical industry waste gas |
| CN106110809B (en) * | 2016-07-15 | 2018-01-23 | 广东吉之准检测有限公司 | A kind of processing system for removing benzene homologues in petrochemical industry waste gas |
| CN107469601B (en) * | 2016-07-15 | 2018-08-07 | 缪琼华 | A kind of processing system removing benzene homologues in petrochemical industry exhaust gas |
| CN107511043B (en) * | 2016-07-15 | 2018-09-28 | 缪琼华 | A kind of processing system removing benzene homologues in petrochemical industry exhaust gas |
| CN106984163A (en) * | 2017-04-13 | 2017-07-28 | 广州市广环环保科技有限公司 | A kind of ammonia processing unit and ammonia denitrogenation method |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20190610 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |