CN107469595A - A kind of dust removal integrated device and method of waste gas of industrial kiln and furnace desulphurization denitration - Google Patents

A kind of dust removal integrated device and method of waste gas of industrial kiln and furnace desulphurization denitration Download PDF

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Publication number
CN107469595A
CN107469595A CN201710844322.8A CN201710844322A CN107469595A CN 107469595 A CN107469595 A CN 107469595A CN 201710844322 A CN201710844322 A CN 201710844322A CN 107469595 A CN107469595 A CN 107469595A
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CN
China
Prior art keywords
waste gas
module
dust removal
furnace
denitration
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Pending
Application number
CN201710844322.8A
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Chinese (zh)
Inventor
李惠林
赵军
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Zhejiang Craftsman Environmental Technology Co Ltd
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Zhejiang Craftsman Environmental Technology Co Ltd
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Priority to CN201710844322.8A priority Critical patent/CN107469595A/en
Publication of CN107469595A publication Critical patent/CN107469595A/en
Pending legal-status Critical Current

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    • 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
    • B01D53/75Multi-step processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/10Combinations of devices covered by groups B01D45/00, B01D46/00 and B01D47/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/40Combinations of devices covered by groups B01D45/00 and B01D47/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/60Combinations of devices covered by groups B01D46/00 and B01D47/00
    • 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
    • B01D53/50Sulfur oxides
    • 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
    • B01D53/54Nitrogen compounds
    • B01D53/56Nitrogen oxides
    • 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
    • B01D53/68Halogens or halogen compounds
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004Systems for reclaiming waste heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/40Alkaline earth metal or magnesium compounds
    • B01D2251/404Alkaline earth metal or magnesium compounds of calcium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/60Inorganic bases or salts
    • B01D2251/604Hydroxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/20Halogens or halogen compounds
    • B01D2257/204Inorganic halogen compounds
    • B01D2257/2047Hydrofluoric acid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004Systems for reclaiming waste heat
    • F27D2017/006Systems for reclaiming waste heat using a boiler
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D2017/009Cyclone for separating fines from gas
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The present invention relates to waste gas of industrial kiln and furnace processing technology field, especially a kind of dust removal integrated equipment of waste gas of industrial kiln and furnace desulphurization denitration, the exhaust emission tube road of Industrial Stoves is sequentially connected non-catalytic reduction denitration module(SNCR), pre- dedusting module, No.1 waste heat boiler, catalytic-reduction denitrified module(SCR), No. two waste heat boilers, semi-dry desulphurization dedusting module, waste gas discharge module;A kind of waste gas of industrial kiln and furnace desulphurization denitration dust removal method, waste gas of industrial kiln and furnace sequentially enter modules processing.A kind of dust removal integrated device and method of waste gas of industrial kiln and furnace desulphurization denitration obtained by the present invention, have advantages below:Using semi-dry desulphurization processing module, emitted no waste water in sweetening process, carry out heat exchange using No.1 waste heat boiler, No. two waste heat boilers, it is possible to achieve the multistage recycling of waste heat;Denitration and dust treatment effeciency improve, and especially relative to wet desulphurization etc., other techniques have significant effect in terms of PM2.5 concentration of emissions are reduced.

Description

A kind of dust removal integrated device and method of waste gas of industrial kiln and furnace desulphurization denitration
Technical field
The present invention relates to waste gas of industrial kiln and furnace processing technology field, especially a kind of waste gas of industrial kiln and furnace desulphurization denitration dedusting Integration apparatus and method.
Background technology
Existing Industrial Stoves, such as glass fiber kiln, flat glass furnace, ceramic industry kiln, its exhaust-gas treatment During need to carry out desulphurization and denitration and dust removal process, but its effect is general, it is hard to handle completely.In addition in waste gas High-temperature residual heat be difficult to handle, directly discharge can pollute.
The content of the invention
The invention aims to solve above-mentioned technology deficiency and provide one kind can realize in waste gas treatment process give up The dust removal integrated device and method of waste gas of industrial kiln and furnace desulphurization denitration that gas water content effectively reduces.
In order to achieve the above object, a kind of waste gas of industrial kiln and furnace desulphurization denitration designed by the present invention dust removal integrated is set Standby, the exhaust emission tube road of Industrial Stoves is sequentially connected non-catalytic reduction denitration module(SNCR), pre- dedusting module, catalysis reduction Denitration module(SCR), semi-dry desulphurization dedusting module, waste gas discharge module;Connected in fact by pipeline between above-mentioned modules Existing waste gas conveying.It is different according to the temperature of project treatment waste gas, waste heat boiler can be not provided with, can also be at two of arbitrary neighborhood One or more waste heat boilers are set between module.
Described pre- dedusting module is one in sediment case, cyclone dust collectors, ceramic pipe type deduster, sinter-plate precipitator Kind or a variety of combinations.
Waste heat boiler is one kind in steam type waste heat boiler, hot-water type waste heat boiler, heat conduction oil type waste heat boiler.
Described semi-dry desulphurization dedusting module is CFB semidry process desulfurizers, NID semidry process desulfurizers, LSD half-dried One kind in method desulfurizer, GSA semidry process desulfurizers, PPSB semidry process desulfurizers, RCFB semidry process desulfurizers.
A kind of waste gas of industrial kiln and furnace desulphurization denitration dust removal method, it is characterized in that:Waste gas of industrial kiln and furnace initially enters on-catalytic Reduce denitration module and non-catalytic reduction denitration process is carried out to waste gas, carry out dust removal process subsequently into pre- dedusting module, then Catalytic-reduction denitrified processing is carried out to waste gas into catalytic-reduction denitrified module, finally enters and enters in semi-dry desulphurization dedusting module Row desulfurization and dust removal process, discharged eventually through waste gas discharge module;Desulfurization stone caused by semi-dry desulphurization dedusting module Cream is handled as the reuse of Industrial Stoves raw material or directly.
Waste heat boiler is set between two adjacent modules according to demand, and waste gas is carried out at cooling into waste heat boiler Reason.
A kind of dust removal integrated device and method of waste gas of industrial kiln and furnace desulphurization denitration obtained by the present invention, have following excellent Point:
(1)Using semi-dry desulphurization processing module, emitted no waste water in sweetening process, thus processing waste water band can be exempted The production cost and wastewater treatment come takes plant area's area.
(2)The final floss hole of waste gas " de- white " --- it can eliminate or largely reduce chimney breast and emit white cigarette/white gas and show As.
(3)Heat exchange is carried out using No.1 waste heat boiler, No. two waste heat boilers, it is possible to achieve the multistage recovery profit of waste heat With.
(4)Denitration and dust treatment effeciency improve, especially relative to wet desulphurization in terms of PM2.5 concentration of emissions are reduced There is significant effect Deng other techniques.
(5)The defluorinate simultaneously of technique energy, the final product that HF and Ca (OH) 2 reacts are the calcirm-fluoride of environmental sound, together After adding amount of activated charcoal in Shi Ben technological reaction raw materials, heavy metal together and can also be removed.
(6)After above-mentioned patent technique, the water content in flue gas medium is greatly reduced, therefore to environmentally friendly and other equipment The corrosivity of body and flue gas pipeline declines to a great extent, so as to reduce the abrasion of equipment and maintenance cost.
(7)The denitration by the way of SNCR+SCR of this technique, the efficiency of denitration can be improved, reaches as high as more than 98%.Simultaneously The cost of investment of equipment can be reduced, and can is reduced overall operation cost and can constructed with modularization, integration, standardized production On it is more convenient.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
Below by embodiment combination accompanying drawing, the invention will be further described.
Embodiment 1:
As shown in figure 1, a kind of dust removal integrated equipment of waste gas of industrial kiln and furnace desulphurization denitration of the present embodiment description, Industrial Stoves Exhaust emission tube road is sequentially connected non-catalytic reduction denitration module, pre- dedusting module, No.1 waste heat boiler, catalytic-reduction denitrified mould Block, No. two waste heat boilers, semi-dry desulphurization dedusting module, waste gas discharge module;Connected between above-mentioned modules by pipeline Realize that waste gas conveys.
Described pre- dedusting module is one in sediment case, cyclone dust collectors, ceramic pipe type deduster, sinter-plate precipitator Kind or a variety of combinations.
No.1 waste heat boiler, No. two waste heat boilers are steam type waste heat boiler, hot-water type waste heat boiler, more than heat conduction oil type One kind in heat boiler.
Described semi-dry desulphurization dedusting module is CFB semidry process desulfurizers or is NID semidry process desulfurizers.
Embodiment 2:
A kind of waste gas of industrial kiln and furnace desulphurization denitration dust removal method of the present embodiment description, waste gas of industrial kiln and furnace initially enter on-catalytic Reduce denitration module and non-catalytic reduction denitration process is carried out to waste gas, carry out dust removal process subsequently into pre- dedusting module, then enter Enter No.1 waste heat boiler and carry out heat exchange, reduce EGT, waste gas is catalyzed subsequently into catalytic-reduction denitrified module Denitration process is reduced, heat exchange is carried out again into No. two waste heat boilers after processing, EGT is reduced, finally enters semidry method Desulfurization and dust removal process are carried out in desulfurization and dedusting module, is discharged eventually through waste gas discharge module;Semi-dry desulphurization dedusting Desulfurated plaster caused by module is handled as the reuse of Industrial Stoves raw material or directly.

Claims (7)

1. a kind of dust removal integrated equipment of waste gas of industrial kiln and furnace desulphurization denitration, it is characterized in that:The exhaust emission tube road of Industrial Stoves It is sequentially connected non-catalytic reduction denitration module, pre- dedusting module, catalytic-reduction denitrified module, semi-dry desulphurization dedusting module, useless Gas discharges module;Realize that waste gas conveys by pipeline connection between above-mentioned modules.
2. a kind of dust removal integrated equipment of waste gas of industrial kiln and furnace desulphurization denitration according to claim 1, it is characterized in that:Also wrap Waste heat boiler is included, described waste heat boiler is arranged between above-mentioned two neighboring module according to demand.
3. a kind of dust removal integrated equipment of waste gas of industrial kiln and furnace desulphurization denitration according to claim 1, it is characterized in that:It is described Pre- dedusting module be sediment case, cyclone dust collectors, ceramic pipe type deduster, one or more groups in sinter-plate precipitator Close.
4. a kind of dust removal integrated equipment of waste gas of industrial kiln and furnace desulphurization denitration according to claim 1, it is characterized in that:Waste heat Boiler is one kind in steam type waste heat boiler, hot-water type waste heat boiler, heat conduction oil type waste heat boiler.
5. a kind of dust removal integrated equipment of waste gas of industrial kiln and furnace desulphurization denitration according to claim 1, it is characterized in that:It is described Semi-dry desulphurization dedusting module for CFB semidry process desulfurizers, NID semidry process desulfurizers, LSD semidry process desulfurizers, One kind in GSA semidry process desulfurizers, PPSB semidry process desulfurizers, RCFB semidry process desulfurizers.
6. a kind of waste gas of industrial kiln and furnace desulphurization denitration dust removal method, it is characterized in that:Waste gas of industrial kiln and furnace initially enters on-catalytic also Former denitration module carries out non-catalytic reduction denitration process to waste gas, and dust removal process, Ran Houjin are carried out subsequently into pre- dedusting module Enter catalytic-reduction denitrified module and catalytic-reduction denitrified processing is carried out to waste gas, finally enter in semi-dry desulphurization dedusting module and carry out Desulfurization and dust removal process, discharged eventually through waste gas discharge module;Desulfurated plaster caused by semi-dry desulphurization dedusting module As the reuse of Industrial Stoves raw material or directly handle.
7. a kind of waste gas of industrial kiln and furnace desulphurization denitration dust removal method according to claim 6, it is characterized in that:Exist according to demand Waste heat boiler is set between two adjacent modules, and waste gas carries out cooling processing into waste heat boiler.
CN201710844322.8A 2017-09-19 2017-09-19 A kind of dust removal integrated device and method of waste gas of industrial kiln and furnace desulphurization denitration Pending CN107469595A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108744917A (en) * 2018-06-12 2018-11-06 王鹏 A kind of industrial waste gas SCR treatment process
CN108744916A (en) * 2018-06-12 2018-11-06 王鹏 A kind of industrial smoke treatment process
CN108771966A (en) * 2018-06-12 2018-11-09 王鹏 A kind of industrial waste gas treatment process
CN108786444A (en) * 2018-06-12 2018-11-13 王鹏 A kind of SCR denitration device with circulatory function
CN109631598A (en) * 2018-12-06 2019-04-16 海南中航特玻科技有限公司 A kind of all-oxygen combustion glass kiln denitration system and method based on flue gas recirculating technique
CN114307482A (en) * 2022-01-04 2022-04-12 常山孚康氟化钙有限公司 Fluorite powder recycling system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108744917A (en) * 2018-06-12 2018-11-06 王鹏 A kind of industrial waste gas SCR treatment process
CN108744916A (en) * 2018-06-12 2018-11-06 王鹏 A kind of industrial smoke treatment process
CN108771966A (en) * 2018-06-12 2018-11-09 王鹏 A kind of industrial waste gas treatment process
CN108786444A (en) * 2018-06-12 2018-11-13 王鹏 A kind of SCR denitration device with circulatory function
CN108771966B (en) * 2018-06-12 2021-03-02 连云港龙展环保科技有限公司 Industrial waste gas treatment process
CN109631598A (en) * 2018-12-06 2019-04-16 海南中航特玻科技有限公司 A kind of all-oxygen combustion glass kiln denitration system and method based on flue gas recirculating technique
CN114307482A (en) * 2022-01-04 2022-04-12 常山孚康氟化钙有限公司 Fluorite powder recycling system

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