CN105536471A - Apparatus for flue gas desulfurization, dedusting and purification - Google Patents

Apparatus for flue gas desulfurization, dedusting and purification Download PDF

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Publication number
CN105536471A
CN105536471A CN201510931750.5A CN201510931750A CN105536471A CN 105536471 A CN105536471 A CN 105536471A CN 201510931750 A CN201510931750 A CN 201510931750A CN 105536471 A CN105536471 A CN 105536471A
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CN
China
Prior art keywords
layer
whirlwind
flue gas
spraying
communicated
Prior art date
Application number
CN201510931750.5A
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Chinese (zh)
Inventor
刘操
Original Assignee
刘操
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN201510931750.5A priority Critical patent/CN105536471A/en
Publication of CN105536471A publication Critical patent/CN105536471A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06Spray cleaning
    • B01D47/063Spray cleaning with two or more jets impinging against each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

Abstract

The invention provides an apparatus for flue gas desulfurization, dedusting and purification. The apparatus comprises a tower body which is provided with a flue gas outlet at the top, a flue gas pipeline and a circulation water pool. The apparatus is characterized in that the tower body is provided with double soda lime water layers, a bubble layer, a spraying layer and a demisting layer; an outer end of the flue gas pipeline communicates with an outlet of a cooler housing through a flange, an air intake is arranged at the right side of the cooler housing, an atomization spring nozzle is arranged at the top of the cooler housing, a high temperature spring with high temperature automatically reset function is arranged in the atomization spring nozzle, and a cooler ash bucket is arranged at the lower end of the cooler housing; branching pipes of the double soda lime water layers are inserted in the flue gas pipeline, and the lower ends of the branching pipes are connected to horizontal pipes with air outlets; a water overflowing layer which communicates with the double soda lime water layers is arranged at an outboard end of the tower body. The apparatus can reduce flue gas entering amount, and has the advantages of small land occupation area, good flue gas cooling effect, good ash removing capability, high dedusting efficiency, and good desulphurization effect.

Description

A kind of flue gas desulfurization and dedusting purifier

Technical field

The present invention relates to flue gases purification field, specifically a kind of flue gas desulfurization and dedusting purifier.

Background technology

At present, relate to the flue gas of the fume generating furnace such as boiler, kiln generation mostly after udst separation, be more then discharged into high-altitude through limewash desulfurization, this dedusting, desulphurization plant floor space greatly, are invested high; The problems such as this spray column dedusting method efficiency of dust collection is not high, often there will be except unclean phenomenon, thus causes the flue gas of discharge not up to standard, spray column inefficiency, unstable; And dedusting dedusting housing inlet port flue-gas temperature, flue gas ash rate higher time, impact can be brought on the operational effect of deduster, therefore need to boiler produce flue gas lower the temperature and flue gas conditioning process.Traditional technology of mixing cold wind cooling can bring corresponding negative effect: cold wind cooling can make exhaust gas volumn greatly increase, air leak rate of air curtain increases, the pressure loss increases, this all can run boiler and deduster and produce undesirable element, and a large amount of lime-ash can be caused to enter in the dedusting housing of deduster, thus affect the dust removing effects of deduster.

Summary of the invention

The object of the present invention is to provide one can reduce import exhaust gas volumn, floor space is little, and flue gas cool-down is effective, and except lime-ash ability is strong, efficiency of dust collection is high, the flue gas desulfurization and dedusting purifier that desulfurized effect is good, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the invention provides following technical scheme:

A kind of flue gas desulfurization and dedusting purifier, comprise the tower body of top tape outlet flue, flue and circulating water pool, two soda lime water layer is provided with from the bottom to top successively in described tower body, bubble layer, spraying layer and demist layer, the outer end of described flue is by the outlet of ring flange and cooler casing, air inlet is provided with on the right side of described cooler casing, cooler casing top is provided with atomization spring nozzle, the high temperature spring possessing high temperature auto-reset function is provided with in atomization spring nozzle, described cooler casing lower end is provided with cooler ash bucket, the inner of described flue is provided with the branched pipe inserting two soda lime water layers, the lower end of branched pipe is connected with the transverse tube of band venthole, tower body outboard end is provided with the unrestrained water layer be communicated with two soda lime water layer, screen pack is provided with between two soda lime water layer and unrestrained water layer, unrestrained water layer upper end is communicated with circulating water pool by return duct, described circulating water pool is provided with the main-supply connected by water pump, described main-supply is provided with multiple branches shower, described spraying layer comprises the whirlwind spraying layer of top and the first spraying layer of below, porous sieve plate is provided with between spraying layer above bubble layer and just, described whirlwind spraying layer comprises whirlwind outer wall and whirlwind inwall, spiral air-conducting plate is provided with before whirlwind outer wall and whirlwind inwall, whirlwind outer wall, whirlwind inwall and spiral air-conducting plate surround a screw spraying chamber, whirlwind inside outer wall is evenly provided with multiple spray head along screw spraying chamber, the spray direction of spray head is contrary with the flow of flue gas direction in screw spraying chamber, spray head is communicated with outer race tube fixing on whirlwind outer wall, outer race tube is communicated with corresponding branch's shower, circumscribedly bottom whirlwind inwall be provided with the flue gas export mouth be communicated with pars intramuralis in whirlwind, whirlwind inwall top is communicated with demist layer, first spraying layer top side is communicated with by the screw spraying chamber of wireway with whirlwind spraying layer upper end, and wireway and the tangent setting of whirlwind outer wall level, be provided with bottom whirlwind outer wall and the lower liquid pipe be communicated with bottom screw spraying chamber, the lower liquid pipe other end stretches into just spraying layer inside and arranges, the lower liquid pipe lower side being positioned at just spraying layer inside is provided with and multiplely just processes shower nozzle.

Further, described bubble layer, spraying layer, demist layer and the position corresponding to outlet flue are respectively equipped with manhole.

Further, the bottom portion side end of described tower body is provided with soil cleaning port.

Further, described cooler ash bucket bottom end outlet is provided with push-pull valve.

Further, described cooler ash bucket bottom end outlet is provided with unloading valve, and unloading valve is arranged on push-pull valve lower end.

Compared with prior art, the invention has the beneficial effects as follows: in cooler casing, be provided with atomization spring nozzle, atomization spring nozzle can realize cooling, ash disposal and carry out several function such as neutralizing in one to some toxic gases, cool-down nozzle adopts the atomizer of spring automatic reset function, by very effective, high-temperature flue gas is lowered the temperature, temperature is adjusted to best region temperature simultaneously, the flue-gas temperature, smoke moisture, flue gas flow rate, dust concentration etc. of adjustment flue gas, so that deduster reaches maximum energy-saving operational effect; High-temperature flue gas enters in cooler casing by air inlet, while utilizing atomization spring nozzle to carry out lowering the temperature, sunk to the bottom by a large amount of lime-ash in flue gas, lime-ash is accumulated along cooler ash bucket inwall at cooler hopper bottom, open push-pull valve and unloading valve can discharge lime-ash, easy to operate; Flue gas is entered after in tower by flue and carry out desulfurization in tower body, and then carry out adsorbing and spraying and dedusting, spraying layer comprises the whirlwind spraying layer of top and the first spraying layer of below, first spraying layer sprays process for the first time to the gas flowed through, flue gas after first process enters in screw spraying chamber along wireway, the spray direction of spray head is contrary with the flow of flue gas direction in screw spraying chamber to be arranged, the treatment fluid of ejection can mix with flue gas fully and contacts and react, substantially increase efficiency of dust collection, improve desulfurized effect; The flue gas export mouth of gas after process through bottom enters pars intramuralis in whirlwind, and eventually pass through demist layer and discharge from outlet flue, demist layer, effectively can realize gas-liquid separation, foam removal efficiency is high, reduces the discharge of the sulphur-containing substance be mingled with in gas; In processing procedure, when two soda lime water is more, circulating water pool can be got back to through screen pack, unrestrained water layer, return duct, treatment fluid in circulating water pool enters in screw spraying chamber through main-supply, branch's shower, outer race tube and spray head, treatment fluid enters just spraying layer through lower liquid pipe and first process shower nozzle again, then drops to two soda lime water layer, forms a circulation, while reaching good dust removing effects, save and used water.The present invention can reduce import exhaust gas volumn, and floor space is little, and flue gas cool-down is effective, and except lime-ash ability is strong, efficiency of dust collection is high, and desulfurized effect is good.

Accompanying drawing explanation

Fig. 1 is a kind of structural representation of flue gas desulfurization and dedusting purifier.

Fig. 2 is the structural representation that in a kind of flue gas desulfurization and dedusting purifier, cross section, flue gas export mouth place whirlwind spraying layer is overlooked.

Fig. 3 be in a kind of flue gas desulfurization and dedusting purifier whirlwind spraying layer top overlook structural representation.

In figure: 1-demist layer, 2-manhole, 3-spiral air-conducting plate, 4-wireway, 5-whirlwind outer wall, 6-is spraying layer just, 7-porous sieve plate, 8-flue, 9-ring flange, 10-is atomized spring nozzle, 11-air inlet, 12-cooler casing, 13-cooler ash bucket, 14-unloading valve, 15-push-pull valve, 16-soil cleaning port, 17-venthole, 18-transverse tube, 19-screen pack, 20-overflows water layer, 21-return duct, 22-circulating water pool, 23-water pump, 24-main-supply, 25-bubble layer, 26-just processes shower nozzle, liquid pipe under 27-, 28-flue gas export mouth, 29-branch shower, 30-outer race tube, 31-spray head, 32-outlet flue, 33-whirlwind inwall.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Refer to Fig. 1 ~ 3, in the embodiment of the present invention, a kind of flue gas desulfurization and dedusting purifier, comprise the tower body of top tape outlet flue 32, flue 8 and circulating water pool 22, two soda lime water layer is provided with from the bottom to top successively in described tower body, bubble layer 25, spraying layer and demist layer 1, the outer end of described flue 8 is by the outlet of ring flange 9 with cooler casing 12, air inlet 11 is provided with on the right side of described cooler casing 12, cooler casing 12 top is provided with atomization spring nozzle 10, the high temperature spring possessing high temperature auto-reset function is provided with in atomization spring nozzle 10, described cooler casing 12 lower end is provided with cooler ash bucket 13, the inner of described flue 8 is provided with the branched pipe inserting two soda lime water layers, the lower end of branched pipe is connected with the transverse tube 18 of band venthole 17, tower body outboard end is provided with the unrestrained water layer be communicated with two soda lime water layer, screen pack 19 is provided with between two soda lime water layer and unrestrained water layer 20, unrestrained water layer 20 upper end is communicated with circulating water pool 22 by return duct 21, described circulating water pool 22 is provided with the main-supply 24 connected by water pump 23, described main-supply 24 is provided with multiple branches shower 29, described spraying layer comprises the whirlwind spraying layer of top and the first spraying layer 6 of below, porous sieve plate 7 is provided with between spraying layer 6 above bubble layer 25 and just, described whirlwind spraying layer comprises whirlwind outer wall 5 and whirlwind inwall 33, spiral air-conducting plate 3 is provided with before whirlwind outer wall 5 and whirlwind inwall 33, whirlwind outer wall 5, whirlwind inwall 33 and spiral air-conducting plate 3 surround a screw spraying chamber, multiple spray head 31 is evenly provided with along screw spraying chamber inside whirlwind outer wall 5, the spray direction of spray head 31 is contrary with the flow of flue gas direction in screw spraying chamber, spray head 31 is communicated with outer race tube 30 fixing on whirlwind outer wall 5, outer race tube 30 is communicated with corresponding branch's shower 29, circumscribedly bottom whirlwind inwall 33 to be provided with and the flue gas export mouth 28 that is communicated with of whirlwind inwall 33 inside, whirlwind inwall 33 top is communicated with demist layer 1, first spraying layer 6 top side is communicated with the screw spraying chamber of whirlwind spraying layer upper end by wireway 4, and wireway 4 and the tangent setting of whirlwind outer wall 5 level, be provided with bottom whirlwind outer wall 5 and the lower liquid pipe 27 be communicated with bottom screw spraying chamber, lower liquid pipe 27 other end stretches into just spraying layer 6 inside and arranges, lower liquid pipe 27 lower side being positioned at just spraying layer 6 inside is provided with multiple just process shower nozzle 26.

In embodiment, described bubble layer 25, spraying layer, demist layer 1 and the position corresponding to outlet flue 32 are respectively equipped with manhole 2, each position of easy access.

In embodiment, the bottom portion side end of described tower body is provided with soil cleaning port 16, is convenient to clear up a large amount of body refuse or lime-ash accumulated bottom two soda lime water layer.

In embodiment, described cooler ash bucket 13 bottom end outlet is provided with push-pull valve 15.

In embodiment, described cooler ash bucket 13 bottom end outlet is provided with unloading valve 14, and unloading valve 14 is arranged on push-pull valve 15 lower end.

Operation principle of the present invention is: be provided with atomization spring nozzle 10 in cooler casing 12, atomization spring nozzle 10 can realize cooling, ash disposal and carry out several function such as neutralizing in one to some toxic gases, cool-down nozzle adopts the atomizer of spring automatic reset function, by very effective, high-temperature flue gas is lowered the temperature, temperature is adjusted to best region temperature simultaneously, the flue-gas temperature, smoke moisture, flue gas flow rate, dust concentration etc. of adjustment flue gas, so that deduster reaches maximum energy-saving operational effect; High-temperature flue gas enters in cooler casing 12 by air inlet 11, while utilizing atomization spring nozzle 10 to carry out lowering the temperature, a large amount of lime-ash in flue gas are sunk to the bottom, lime-ash is accumulated bottom cooler ash bucket 13 along cooler ash bucket 13 inwall, open push-pull valve 15 and unloading valve 14 can discharge lime-ash, easy to operate; Flue gas is entered after in tower by flue 8 and carry out desulfurization in tower body, and then carry out adsorbing and spraying and dedusting, spraying layer comprises the whirlwind spraying layer of top and the first spraying layer 6 of below, first spraying layer 6 sprays process for the first time to the gas flowed through, flue gas after first process enters in screw spraying chamber along wireway 4, the spray direction of spray head 31 is contrary with the flow of flue gas direction in screw spraying chamber to be arranged, the treatment fluid of ejection can mix with flue gas fully and contacts and react, substantially increase efficiency of dust collection, improve desulfurized effect; It is inner that the flue gas export mouth 28 of gas after process through bottom enters whirlwind inwall 33, and eventually pass through demist layer 1 and discharge from outlet flue 32, demist layer 1 effectively can realize gas-liquid separation, and foam removal efficiency is high, reduces the discharge of the sulphur-containing substance be mingled with in gas; In processing procedure, when two soda lime water is more, circulating water pool 22 can be got back to through screen pack 19, unrestrained water layer 20, return duct 21, treatment fluid in circulating water pool 22 enters in screw spraying chamber through main-supply 24, branch's shower 29, outer race tube 30 and spray head 31, treatment fluid enters just spraying layer 6 through lower liquid pipe 27 and first process shower nozzle 26 again, then drops to two soda lime water layer, forms a circulation, while reaching good dust removing effects, save and used water.

To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.

In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.

Claims (5)

1. a flue gas desulfurization and dedusting purifier, comprise the tower body of top tape outlet flue, flue and circulating water pool, it is characterized in that, two soda lime water layer is provided with from the bottom to top successively in described tower body, bubble layer, spraying layer and demist layer, the outer end of described flue is by the outlet of ring flange and cooler casing, air inlet is provided with on the right side of described cooler casing, cooler casing top is provided with atomization spring nozzle, the high temperature spring possessing high temperature auto-reset function is provided with in atomization spring nozzle, described cooler casing lower end is provided with cooler ash bucket, the inner of described flue is provided with the branched pipe inserting two soda lime water layers, the lower end of branched pipe is connected with the transverse tube of band venthole, tower body outboard end is provided with the unrestrained water layer be communicated with two soda lime water layer, screen pack is provided with between two soda lime water layer and unrestrained water layer, unrestrained water layer upper end is communicated with circulating water pool by return duct, described circulating water pool is provided with the main-supply connected by water pump, described main-supply is provided with multiple branches shower, described spraying layer comprises the whirlwind spraying layer of top and the first spraying layer of below, porous sieve plate is provided with between spraying layer above bubble layer and just, described whirlwind spraying layer comprises whirlwind outer wall and whirlwind inwall, spiral air-conducting plate is provided with before whirlwind outer wall and whirlwind inwall, whirlwind outer wall, whirlwind inwall and spiral air-conducting plate surround a screw spraying chamber, whirlwind inside outer wall is evenly provided with multiple spray head along screw spraying chamber, the spray direction of spray head is contrary with the flow of flue gas direction in screw spraying chamber, spray head is communicated with outer race tube fixing on whirlwind outer wall, outer race tube is communicated with corresponding branch's shower, circumscribedly bottom whirlwind inwall be provided with the flue gas export mouth be communicated with pars intramuralis in whirlwind, whirlwind inwall top is communicated with demist layer, first spraying layer top side is communicated with by the screw spraying chamber of wireway with whirlwind spraying layer upper end, and wireway and the tangent setting of whirlwind outer wall level, be provided with bottom whirlwind outer wall and the lower liquid pipe be communicated with bottom screw spraying chamber, the lower liquid pipe other end stretches into just spraying layer inside and arranges, the lower liquid pipe lower side being positioned at just spraying layer inside is provided with and multiplely just processes shower nozzle.
2. a kind of flue gas desulfurization and dedusting purifier according to claim 1, is characterized in that, described bubble layer, spraying layer, demist layer and the position corresponding to outlet flue are respectively equipped with manhole.
3. a kind of flue gas desulfurization and dedusting purifier according to claim 1, it is characterized in that, the bottom portion side end of described tower body is provided with soil cleaning port.
4. a kind of flue gas desulfurization and dedusting purifier according to claim 1, is characterized in that, described cooler ash bucket bottom end outlet is provided with push-pull valve.
5. a kind of flue gas desulfurization and dedusting purifier according to claim 4, is characterized in that, described cooler ash bucket bottom end outlet is provided with unloading valve, and unloading valve is arranged on push-pull valve lower end.
CN201510931750.5A 2015-12-10 2015-12-10 Apparatus for flue gas desulfurization, dedusting and purification CN105536471A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106237770A (en) * 2016-08-31 2016-12-21 安徽金禾实业股份有限公司 A kind of boiler desulfurization tower demister
CN106512617A (en) * 2016-10-28 2017-03-22 桂林洁宇环保科技有限责任公司 Treatment method for smoke of domestic garbage incinerator
CN108219861A (en) * 2018-02-08 2018-06-29 武汉金中石化工程有限公司 A kind of thick straw fuel gas purification technique and its purifier
CN111408214A (en) * 2020-04-18 2020-07-14 程业春 Industrial flue gas purification treatment method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0536085B2 (en) * 1984-02-20 1993-05-28 Babcock Hitachi Kk
US20050284300A1 (en) * 2004-06-29 2005-12-29 Cedo Marusic Portable air cleaning apparatus
CN103566686A (en) * 2012-07-22 2014-02-12 吴舒克 Assemble type flue gas dust collector
CN103566690A (en) * 2012-07-29 2014-02-12 吴舒克 Double-swirl flue gas dust remover capable of spray settling
CN104587815A (en) * 2013-11-04 2015-05-06 中国石油化工股份有限公司大连石油化工研究院 Treating method for waste gas containing sulfur and hydrocarbons
CN204582947U (en) * 2015-05-05 2015-08-26 方鸿 One is with the desulfation dust-extraction device that cools

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0536085B2 (en) * 1984-02-20 1993-05-28 Babcock Hitachi Kk
US20050284300A1 (en) * 2004-06-29 2005-12-29 Cedo Marusic Portable air cleaning apparatus
CN103566686A (en) * 2012-07-22 2014-02-12 吴舒克 Assemble type flue gas dust collector
CN103566690A (en) * 2012-07-29 2014-02-12 吴舒克 Double-swirl flue gas dust remover capable of spray settling
CN104587815A (en) * 2013-11-04 2015-05-06 中国石油化工股份有限公司大连石油化工研究院 Treating method for waste gas containing sulfur and hydrocarbons
CN204582947U (en) * 2015-05-05 2015-08-26 方鸿 One is with the desulfation dust-extraction device that cools

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106237770A (en) * 2016-08-31 2016-12-21 安徽金禾实业股份有限公司 A kind of boiler desulfurization tower demister
CN106512617A (en) * 2016-10-28 2017-03-22 桂林洁宇环保科技有限责任公司 Treatment method for smoke of domestic garbage incinerator
CN108219861A (en) * 2018-02-08 2018-06-29 武汉金中石化工程有限公司 A kind of thick straw fuel gas purification technique and its purifier
CN111408214A (en) * 2020-04-18 2020-07-14 程业春 Industrial flue gas purification treatment method
CN111408214B (en) * 2020-04-18 2020-10-30 江苏世清环保科技有限公司 Industrial flue gas purification treatment method

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