CN103611399A - Purification system for flue gas generated in hazardous waste incineration - Google Patents

Purification system for flue gas generated in hazardous waste incineration Download PDF

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Publication number
CN103611399A
CN103611399A CN201310639722.7A CN201310639722A CN103611399A CN 103611399 A CN103611399 A CN 103611399A CN 201310639722 A CN201310639722 A CN 201310639722A CN 103611399 A CN103611399 A CN 103611399A
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China
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flue gas
gas outlet
outlet
quenching
dry type
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CN201310639722.7A
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Chinese (zh)
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CN103611399B (en
Inventor
王立
马文
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无锡雪浪环境科技股份有限公司
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Abstract

The invention provides a purification system for flue gas generated in hazardous waste incineration. According to the system, three deacidification filtering systems of dry dust removal, wet dust removal and cloth bag dust removal are combined; the disadvantages of the three deacidification filtering systems during the respective independent using processes are overcome; the treatment capability of acid gas in the flue gas generated by hazardous waste incineration is improved. The system comprises a quenching device, wherein the quenching device is provided with a flue gas inlet and a flue gas outlet; the flue gas outlet of the quenching device is communicated with a flue gas purification device through a pipeline; an outlet of the flue gas purification device is communicated with a chimney. The system is characterized in that the flue gas purification device specifically comprises a dry reactor, a bag dust remover and a wet washing tower, wherein the flue gas outlet of the quenching device is connected with a flue gas inlet of the dry reactor; a flue gas outlet of the dry reactor is connected with a flue gas inlet of the bag dust remover; a flue gas outlet of the bag dust remover is connected with a flue gas inlet of the wet washing tower; a flue gas outlet of the wet washing tower is communicated with the chimney.

Description

A kind of danger waste burning flue gas purification system

Technical field

The present invention relates to the technical field of gas cleaning, be specially a kind of danger waste burning flue gas purification system.

Background technology

At present, according to the discharge standard of flue gas, need to carry out purified treatment to the pollutants such as sour gas (being mainly HCL, HF, SO2), dust granules, bioxin and heavy metal that burn in the useless flue gas producing of danger.First danger waste burning flue gas process of the prior art removes sour gas, then carries out the filtration of dust granules.Wherein the removal methods of sour gas adopts dry method or semidry method or wet processing.

Dry-process deacidification is in flue gas, to spray into dryness medicament, medicament reacts with flue gas in reactor, and to remove sour gas wherein, its shortcoming is that the medicament use amount of this kind of method is large, cause its use cost and improve, its deacidification efficiency is more relatively low than semidry method, wet method.

Semidry method depickling is by nozzle or rotary sprayer, lime white to be sprayed in reactor, forms the less drop of particle diameter, sour gas is reacted with lime white and generate salt, and its shortcoming is that the preparation of lime white is complicated, and deacidification efficiency is limited.

Wet method depickling adopts scrubbing tower form, can produce the waste water with heavy metal containing the inorganic villaumite of high concentration, also needs to be equipped with Waste Water Treatment, and cost of investment is high, and operating cost is also high.

As can be seen here, all there is shortcoming separately in any one above-mentioned deacidifying process, and single use someway security is low, and reliability is low.Once go wrong, may produce environmental pollution.

Summary of the invention

For existing above-mentioned defect, the invention provides a kind of danger waste burning flue gas purification system, it combines dry method, wet method, three kinds of depickling filtration systems of bag-type dust, make up separately shortcoming in use, improved the disposal ability of the sour gas in the flue gas that danger waste burning is produced.

A kind of danger waste burning flue gas purification system, its technical scheme is such: it comprises quenching apparatus, described quenching apparatus has smoke inlet, exhanst gas outlet, the exhanst gas outlet of described quenching apparatus is by pipeline connection smoke eliminator, the outlet of described smoke eliminator is communicated with chimney, it is characterized in that: described smoke eliminator specifically comprises dry type reactor, sack cleaner, wet scrubber tower, the exhanst gas outlet of described quenching apparatus connects the gas approach of described dry type reactor, the exhanst gas outlet of described dry type reactor connects the gas approach of described sack cleaner, the exhanst gas outlet of described sack cleaner connects the gas approach of described wet scrubber tower, the exhanst gas outlet of described wet scrubber tower is communicated with described chimney.

It is further characterized in that: described quenching apparatus is specially quench tower, the top of described quench tower is provided with two-fluid spray gun, two imports of described two-fluid spray gun are communicated with respectively cooling water tank, compressed air cylinder, the upper lateral part of described quench tower is provided with smoke inlet, and the following side of described quench tower is provided with exhanst gas outlet;

The bottom of described dry type reactor is provided with gas approach, the gas approach top of described dry type reactor is furnished with injection apparatus, external pipe is communicated with described injection apparatus, the end of described external pipe is provided with spray medicine blower fan, the centre position of described external pipe has active carbon material feeding mouth, calcium hydroxide charging aperture, active carbon storage silo connects described active carbon material feeding mouth, calcium hydroxide storage silo connects described calcium hydroxide charging aperture, and the top of the injection apparatus of described dry type inside reactor is provided with exhanst gas outlet;

The exhanst gas outlet of described quench tower connects the gas approach of the bottom of described dry type reactor by flue;

Between described active carbon storage silo and described active carbon material feeding mouth, be provided with quantitative distributing device, between described calcium hydroxide storage silo and described calcium hydroxide charging aperture, be provided with quantitative distributing device;

In pipeline between described sack cleaner, wet scrubber tower, be provided with air-introduced machine, the pipeline place of the smoke outlet of described sack cleaner is also provided with flue gas on-Line Monitor Device;

Described quantitative distributing device, on-Line Monitor Device be outer connected control system respectively;

The top of described wet scrubber tower is provided with exhanst gas outlet, and the top of described wet scrubber tower is furnished with alkali formula spray equipment, and described alkali formula spray equipment is connected with outside alkali liquid tank by pipeline, and the exit of described alkali liquid tank is furnished with pump.

Cleaning system of the present invention combines dry method, wet method, three kinds of depickling filtration systems of bag-type dust, made up separately shortcoming in use, improved the disposal ability of the sour gas in the flue gas that danger waste burning is produced, and makes HCL, SO 2discharge value is better than GB18484-2001 standard (HCL<60mg/Nm 3, SO 2<200 mg/Nm 3), the pollution of the flue gas that has reduced discharge to environment.

Accompanying drawing explanation

Fig. 1 is structural representation block diagram sketch of the present invention.

The specific embodiment

See Fig. 1, it comprises quenching apparatus 1, quenching apparatus 1 has smoke inlet, exhanst gas outlet, the exhanst gas outlet of quenching apparatus 1 is by pipeline connection smoke eliminator, the outlet of smoke eliminator is communicated with chimney 14, smoke eliminator specifically comprises dry type reactor 5, sack cleaner 11, wet scrubber tower 13, the exhanst gas outlet of quenching apparatus 1 connects the gas approach that dry type is reacted 5 devices, the exhanst gas outlet of dry type reactor 5 connects the gas approach of sack cleaner 11, the exhanst gas outlet of sack cleaner 11 connects the gas approach of wet scrubber tower 13, the exhanst gas outlet of wet scrubber tower 13 is communicated with chimney 14.Quenching apparatus 1 is specially quench tower, the top of quench tower is provided with two-fluid spray gun 2, two imports of two-fluid spray gun 2 are communicated with respectively cooling water tank 3, compressed air cylinder 4, and the upper lateral part of quench tower is provided with smoke inlet, and the following side of quench tower is provided with exhanst gas outlet; The bottom of dry type reactor 5 is provided with gas approach, the gas approach top of dry type reactor 5 is furnished with injection apparatus 9, external pipe is communicated with injection apparatus 9, the end of external pipe is provided with spray medicine blower fan 8, the centre position of external pipe has active carbon material feeding mouth, calcium hydroxide charging aperture, active carbon storage silo 6 connects active carbon material feeding mouth, and calcium hydroxide storage silo 7 connects calcium hydroxide charging aperture, and the top of the injection apparatus 9 of dry type reactor 5 inside is provided with exhanst gas outlet; The exhanst gas outlet of quench tower connects the gas approach of the bottom of dry type reactor 5 by flue 15; Between active carbon storage silo 6 and active carbon material feeding mouth, be provided with quantitative distributing device 10, between calcium hydroxide storage silo 7 and calcium hydroxide charging aperture, be provided with quantitative distributing device 10; In pipeline between sack cleaner 11, wet scrubber tower 13, be provided with air-introduced machine 12, the pipeline place of the smoke outlet of sack cleaner 11 is also provided with flue gas on-Line Monitor Device 19; Quantitative distributing device 10, on-Line Monitor Device 19 be outer connected control system 20 respectively; The top of wet scrubber tower 13 is provided with exhanst gas outlet, and the top of wet scrubber tower 13 is furnished with alkali formula spray equipment 17, and alkali formula spray equipment 17 is connected with outside alkali liquid tank 16 by pipeline, and the exit of alkali liquid tank 16 is furnished with pump 18.

Specifically set forth below the method for operating of lower the present embodiment:

The flue gas that danger is given up between 850 ℃~1100 ℃ that distribute after abundant burning in two combustion chambers enters waste heat boiler from smoke inlet. being down to 180 ℃ by chilling heat sink, the flue gas of 550 ℃~600 ℃ flowing out from waste heat boiler enters in dry type reactor 5, with lime Ca (OH) 2carry out acid-base neutralization reaction:

2HCL+Ca(OH) 2→CaCL 2+2H 2O

SO 2+Ca(OH) 2→CaSO 3+H 2O,2CaSO 3+O 2→2CaSO 4

Flue gas after once desulfurization, cooling flows into flue 15 with the temperature of 160 ℃~180 ℃, active carbon and calcium hydroxide are sent into injection apparatus 9 through dosing device 10 by spray medicine blower fan 8, and the active carbon of ejection adsorbs harmful substances such as the dioxin in flue gas and heavy metals; Calcium hydroxide and the sour gas in flue gas (HCL, the SO of ejection 2deng) carry out neutralization reaction.

Flue gas enters exhaust dust device with bag 11 subsequently, filter bag gets off the collections such as the active carbon of the dust in flue gas, depickling product, absorption nuisance and unreacted calcium hydroxide and active carbon, wherein, a part is returned to dry type reactor, and another part is delivered to flying dust warehouse and stored.

Deduster outlet flue gas enters wet scrubber tower 13 through air-introduced machine 12, and the alkali lye in alkali liquid tank carries out spray washing by 17 pairs of flue gases of alkali formula spray equipment, to the sour gas in flue gas (HCL, SO 2deng) further carrying out neutralization reaction, flue gas reaches after the discharge standard of regulation, by chimney 14 high-altitudes, enters atmosphere.

The flying dust of discharging from quenching apparatus 1, exhaust dust device with bag 11, by conveying device, delivers to flying dust warehouse and stores.

In addition HCL and the SO of the discharge of 19 pairs of flue gases of flue gas on-Line Monitor Device, 2test, and feed back to control system 20 with the dosage of adjustment quantitative proportioner 10 adjustment calcium hydroxides.The quantity that injects the calcium hydroxide of dry type reactor constantly regulates, and the fluctuation of acid minute concentration in flue gas, can be substantially by unreacted Ca (OH) on bag-type dust collector filter bag outer wall 2institute digests.

Claims (8)

1. a danger waste burning flue gas purification system, it comprises quenching apparatus, described quenching apparatus has smoke inlet, exhanst gas outlet, the exhanst gas outlet of described quenching apparatus is by pipeline connection smoke eliminator, the outlet of described smoke eliminator is communicated with chimney, it is characterized in that: described smoke eliminator specifically comprises dry type reactor, sack cleaner, wet scrubber tower, the exhanst gas outlet of described quenching apparatus connects the gas approach of described dry type reactor, the exhanst gas outlet of described dry type reactor connects the gas approach of described sack cleaner, the exhanst gas outlet of described sack cleaner connects the gas approach of described wet scrubber tower, the exhanst gas outlet of described wet scrubber tower is communicated with described chimney.
2. a kind of danger waste burning flue gas purification system according to claim 1, it is characterized in that: described quenching apparatus is specially quench tower, the top of described quench tower is provided with two-fluid spray gun, two imports of described two-fluid spray gun are communicated with respectively cooling water tank, compressed air cylinder, the upper lateral part of described quench tower is provided with smoke inlet, and the following side of described quench tower is provided with exhanst gas outlet.
3. a kind of danger waste burning flue gas purification system according to claim 2, it is characterized in that: the bottom of described dry type reactor is provided with gas approach, the gas approach top of described dry type reactor is furnished with injection apparatus, external pipe is communicated with described injection apparatus, the end of described external pipe is provided with spray medicine blower fan, the centre position of described external pipe has active carbon material feeding mouth, calcium hydroxide charging aperture, active carbon storage silo connects described active carbon material feeding mouth, calcium hydroxide storage silo connects described calcium hydroxide charging aperture, the top of the injection apparatus of described dry type inside reactor is provided with exhanst gas outlet.
4. a kind of danger waste burning flue gas purification system according to claim 3, is characterized in that: the exhanst gas outlet of described quench tower connects the gas approach of the bottom of described dry type reactor by flue.
5. a kind of danger waste burning flue gas purification system according to claim 3, it is characterized in that: between described active carbon storage silo and described active carbon material feeding mouth, be provided with quantitative distributing device, between described calcium hydroxide storage silo and described calcium hydroxide charging aperture, be provided with quantitative distributing device.
6. according to a kind of danger waste burning flue gas purification system described in claim 4 or 5, it is characterized in that: in the pipeline between described sack cleaner, wet scrubber tower, be provided with air-introduced machine, the pipeline place of the smoke outlet of described sack cleaner is also provided with flue gas on-Line Monitor Device.
7. a kind of danger waste burning flue gas purification system according to claim 6, is characterized in that: described quantitative distributing device, on-Line Monitor Device be outer connected control system respectively.
8. a kind of danger waste burning flue gas purification system according to claim 1, it is characterized in that: the top of described wet scrubber tower is provided with exhanst gas outlet, the top of described wet scrubber tower is furnished with alkali formula spray equipment, described alkali formula spray equipment is connected with outside alkali liquid tank by pipeline, and the exit of described alkali liquid tank is furnished with pump.
CN201310639722.7A 2013-12-04 2013-12-04 A kind of danger waste burning flue gas purification system CN103611399B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104722181A (en) * 2015-02-04 2015-06-24 绿色动力环保集团股份有限公司 Combined deacidifying and dedusting method and system of domestic garbage incineration flue gas
CN104722182A (en) * 2015-02-04 2015-06-24 绿色动力环保集团股份有限公司 Harmless treatment method and harmless treatment system of added reaction auxiliary agent for flue gas obtained by combusting domestic garbage
CN105126519A (en) * 2015-08-29 2015-12-09 华南理工大学 Treatment system of smoke organic waste gas produced in circuit board disassembly
CN105536405A (en) * 2016-01-11 2016-05-04 张文国 Industrial refuse cracking burning tail gas treatment system
CN105536406A (en) * 2016-01-11 2016-05-04 张文国 Industrial refuse cracking burning tail gas treatment method
CN105727672A (en) * 2016-03-08 2016-07-06 张文国 Treatment method for cracking and burning of industrial refuses and removal of tail gas and dust
CN105771506A (en) * 2016-03-08 2016-07-20 张文国 Industrial waste cracking incineration tail gas dust removal treatment system
CN107224820A (en) * 2017-05-22 2017-10-03 加拿大艾浦莱斯有限公司 A kind of cleaning treatment system and processing method for syngas combustion tail gas after Biohazard Waste burning or gasification

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575982A (en) * 1993-12-23 1996-11-19 Metallgesellschaft Aktiengesellschaft Process of purifying exhaust gases produced by combustion of waste materials
CN201572600U (en) * 2009-05-12 2010-09-08 苏州科德技研有限公司 Waste incineration gas purification dry deacidification system
WO2010105646A1 (en) * 2009-03-20 2010-09-23 Babcock Noell Gmbh Method and system for separately precipitating pollutants and toxic gases from smoke and exhaust gases by bulk layer filters and wet gas washers
CN201912877U (en) * 2010-09-10 2011-08-03 上海市固体废物处置中心 System for processing medical waste incineration tail gas containing high concentration hydrogen chloride
CN102225302A (en) * 2011-03-25 2011-10-26 浙江菲达脱硫工程有限公司 System and method for purifying tail gas of medical waste incineration
CN202769692U (en) * 2012-09-07 2013-03-06 上海和衡能源科技发展有限公司 Thermodynamic system for coal-fired power plant boiler flue gas waste heat recovery and waste emission reduction
CN203620488U (en) * 2013-12-04 2014-06-04 无锡雪浪环境科技股份有限公司 Hazardous waste incineration flue gas purification system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575982A (en) * 1993-12-23 1996-11-19 Metallgesellschaft Aktiengesellschaft Process of purifying exhaust gases produced by combustion of waste materials
WO2010105646A1 (en) * 2009-03-20 2010-09-23 Babcock Noell Gmbh Method and system for separately precipitating pollutants and toxic gases from smoke and exhaust gases by bulk layer filters and wet gas washers
CN201572600U (en) * 2009-05-12 2010-09-08 苏州科德技研有限公司 Waste incineration gas purification dry deacidification system
CN201912877U (en) * 2010-09-10 2011-08-03 上海市固体废物处置中心 System for processing medical waste incineration tail gas containing high concentration hydrogen chloride
CN102225302A (en) * 2011-03-25 2011-10-26 浙江菲达脱硫工程有限公司 System and method for purifying tail gas of medical waste incineration
CN202769692U (en) * 2012-09-07 2013-03-06 上海和衡能源科技发展有限公司 Thermodynamic system for coal-fired power plant boiler flue gas waste heat recovery and waste emission reduction
CN203620488U (en) * 2013-12-04 2014-06-04 无锡雪浪环境科技股份有限公司 Hazardous waste incineration flue gas purification system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104722181A (en) * 2015-02-04 2015-06-24 绿色动力环保集团股份有限公司 Combined deacidifying and dedusting method and system of domestic garbage incineration flue gas
CN104722182A (en) * 2015-02-04 2015-06-24 绿色动力环保集团股份有限公司 Harmless treatment method and harmless treatment system of added reaction auxiliary agent for flue gas obtained by combusting domestic garbage
CN105126519A (en) * 2015-08-29 2015-12-09 华南理工大学 Treatment system of smoke organic waste gas produced in circuit board disassembly
CN105126519B (en) * 2015-08-29 2017-12-01 华南理工大学 A kind of wiring board disassembles the processing system of smog organic exhaust gas
CN105536405A (en) * 2016-01-11 2016-05-04 张文国 Industrial refuse cracking burning tail gas treatment system
CN105536406A (en) * 2016-01-11 2016-05-04 张文国 Industrial refuse cracking burning tail gas treatment method
CN105727672A (en) * 2016-03-08 2016-07-06 张文国 Treatment method for cracking and burning of industrial refuses and removal of tail gas and dust
CN105771506A (en) * 2016-03-08 2016-07-20 张文国 Industrial waste cracking incineration tail gas dust removal treatment system
CN107224820A (en) * 2017-05-22 2017-10-03 加拿大艾浦莱斯有限公司 A kind of cleaning treatment system and processing method for syngas combustion tail gas after Biohazard Waste burning or gasification
CN107224820B (en) * 2017-05-22 2019-11-12 加拿大艾浦莱斯有限公司 A kind of cleaning treatment system and processing method for syngas combustion tail gas after Biohazard Waste burning or gasification

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