CN109985516A - A kind of cement kiln flue gas denitration demercuration desulphurization system and method - Google Patents

A kind of cement kiln flue gas denitration demercuration desulphurization system and method Download PDF

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Publication number
CN109985516A
CN109985516A CN201910223854.9A CN201910223854A CN109985516A CN 109985516 A CN109985516 A CN 109985516A CN 201910223854 A CN201910223854 A CN 201910223854A CN 109985516 A CN109985516 A CN 109985516A
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flue gas
denitration demercuration
cement kiln
raw material
desulfurizing agent
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CN201910223854.9A
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刘猛
桑圣欢
康宇
李安平
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Nanjing Kisen International Engineering Co Ltd
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Nanjing Kisen International Engineering Co Ltd
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Priority to CN201910223854.9A priority Critical patent/CN109985516A/en
Priority to PCT/CN2019/088673 priority patent/WO2020191915A1/en
Publication of CN109985516A publication Critical patent/CN109985516A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/442—Auxiliary equipment or operation thereof controlling filtration by measuring the concentration of particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/02—Separation 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 by adsorption, e.g. preparative gas chromatography
    • B01D53/06—Separation 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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B01D53/10—Separation 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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8665—Removing heavy metals or compounds thereof, e.g. mercury
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/60—Heavy metals or heavy metal compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases

Abstract

The present invention provides a kind of cement kiln flue gas denitration demercuration desulphurization systems, including kiln tail preheater, high-temperature blower, the denitration demercuration device for including denitration demercuration catalyst, raw material mill, dust-precipitator, last row blower and the chimney being sequentially connected in order；Connection air hose between the high-temperature blower and denitration demercuration device is equipped with ammonium hydroxide bringing device, and the connection air hose between the denitration demercuration device and raw material mill is equipped with desulfurizing agent injection apparatus, which is connected with desulfurizing agent powder cabin.The present invention also provides a kind of cement kiln flue gas denitration demercuration sulfur method based on above system.Operation of the present invention is convenient, to NOx, Hg and SO in kiln exit gas2Removal efficiency is high, and system footprint area is small, and equipment investment cost is low, is current realization flue gas NOx of cement kiln, SO2With the effective means of Hg minimum discharge.

Description

A kind of cement kiln flue gas denitration demercuration desulphurization system and method
Technical field
The present invention relates to cement kiln flue gas processing technology field, especially a kind of cement kiln flue gas denitration demercuration desulphurization system And method.
Background technique
Technological innovation is reinforced in " cement industry development plan " proposition, implements innovation and drives, encouragement research and development flue gas deep desulfuration, Denitration and its integrated Collaborative Control technical equipment.
" cement industry atmosphere pollutants emission standards " provide that NOx emission standard in key area is 320mg/Nm3, SO2Discharge Standard is 100mg/Nm3, Hg and its compound emission standard are 50 μ g/Nm3.Jiangsu Province will clearly realize up to standard in non-electrical industry On the basis of discharge, the industries nitrogen oxides depth emission reduction such as coking, steel, cement, glass, flue gas NOx of cement kiln row are carried forward vigorously Concentration is put not higher than 100mg/Nm3；Cement production enterprise is encouraged to carry out minimum discharge transformation, sulfur dioxide, nitrogen oxygen after transformation in Henan Province Compound concentration of emission will be respectively no higher than 50mg/Nm3、100mg/Nm3。
However, traditional fractional combustion and SNCR technology has been unable to satisfy flue gas NOx of cement kiln depth emission reduction requirement, it is right For cement production enterprise, it is necessary to completely newly be upgraded to denitrating technique route, turn to SCR by SNCR denitration versatility and take off Nitre technology.
Cement industry sulfur dioxide in flue gas mostlys come from the sulphur in sulfide, sulfate and fuel in raw material, by Calcium oxide in raw material can remove most of sulfur dioxide, so that SO in tail flue gas2Concentration is lower, general concentration of emission For 30-100mg/Nm3.It is indispensable that cement industry flue gas depth emission reduction is had become using low cost desulfurization technology without secondary pollution Few means.
China has put into effect multiple countries and provincial standard for the discharge of Mercury In Coal Combustion Flue Gas, but following as environmental protection is wanted The raising asked, mercury emissions standard will become sternly, and cement industry mercury in flue gas pollution control technology will become hot spot.Cement kiln demercuration state The interior case for rarely having implementation at present, external flue gas demercuration is based on active carbon/activated coke absorption.Control of cement kiln mercury emissions can be adopted With following measures: reducing cement kiln exhaust gas temperature, but cement kiln end flue gas is widely used in cogeneration and drying raw material, kiln at present Exit gas temperature can not be greatly reduced；Active carbon/activated coke absorption, the method is at high cost, active carbon/activated coke after absorption It is difficult to secondary use；Wet desulphurization has demercuration function concurrently, but wet desulphurization has secondary pollution.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of easy to operate, efficient cement kiln flue gas of operation Denitration demercuration desulphurization system and method realize flue gas NOx of cement kiln, SO2With the minimum discharge of Hg.
The technical solution adopted by the present invention to solve the technical problems is:
Present invention firstly provides a kind of cement kiln flue gas denitration demercuration desulphurization systems, including the kiln tail being sequentially connected in order Preheater, high-temperature blower, the denitration demercuration device for including denitration demercuration catalyst, raw material mill, dust-precipitator, last row blower and cigarette Chimney；Connection air hose between the high-temperature blower and denitration demercuration device is equipped with ammonium hydroxide bringing device, the denitration demercuration device Connection air hose between raw material mill is equipped with desulfurizing agent injection apparatus, which is connected with desulfurizing agent powder cabin.
Preferably, waste heat boiler is equipped between the kiln tail preheater and high-temperature blower.
Preferably, the deashing device for purging catalyst surface dust stratification is equipped in the denitration demercuration device.
The present invention also provides a kind of cement kiln flue gas denitration demercuration sulfur method based on above system, including walk as follows It is rapid:
Step 1: the flue gas from kiln tail preheater is passed sequentially through enter after waste heat boiler, high-temperature blower included it is de- The denitration demercuration device of nitre demercuration catalyst, while ammonium hydroxide is sprayed at the import air hose of denitration demercuration device, so that flue gas Denitration and mercury oxidation are carried out in denitration demercuration device；
Step 2: entered in raw material mill by desulfuring and denitrifying apparatus treated flue gas by connecting air hose, while Desulfurizing agent is sprayed into this connection air hose, to reduce the sulfur dioxide in flue gas and carry out mercury absorption；
Step 3: the flue gas entered in raw material mill dries cement raw material, raw material disintegrating outlet flue gas enters bag receipts Dirt device in flue gas dust and desulfurizing agent remove, the clean flue gas after dedusting enters chimney heel row by last row blower Out.
Preferably, the exit gas temperature of the kiln tail preheater is 280~350 DEG C, and dust concentration is 80~100g/ Nm3。
Preferably, the exit gas temperature of high-temperature blower described in step 1 be 150~250 DEG C, dust concentration be 60~ 80g/Nm3。
Preferably, the mass concentration 10~30% of the ammonium hydroxide sprayed into step 1, flow are 0.1~1m3/h。
Preferably, in the desulfurizing agent powder cabin desulfurizing agent partial size≤50 μm.
The positive effect of the present invention: operation of the present invention is convenient, to NOx, Hg and SO in kiln exit gas2Removal efficiency is high, And system footprint area is small, equipment investment cost is low, is current realization flue gas NOx of cement kiln, SO2It is effective with Hg minimum discharge Means.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cement kiln flue gas denitration demercuration desulphurization system described in the embodiment of the present invention.
In figure: 1, kiln tail preheater system；2, waste heat boiler；3, high-temperature blower；4, ammonium hydroxide bringing device；5, denitration demercuration Device；6, desulfurizing agent powder cabin；7, desulfurizing agent injection apparatus；8, air hose is connected；9, raw material is ground；10, dust-precipitator；11, last row blower； 12, chimney.
Specific embodiment
With reference to the accompanying drawing to a preferred embodiment of the present invention will be described in detail.
Embodiment 1
Referring to Fig.1, the preferred embodiment of the present invention provides a kind of cement kiln flue gas denitration demercuration desulphurization system, including in order The kiln tail preheater system 1 that is sequentially connected, high-temperature blower 3, the denitration demercuration device 5 for including denitration demercuration catalyst, raw material mill 9, dust-precipitator 10, last row blower 11 and chimney 12；It (is leaned on connection air hose between the high-temperature blower 3 and denitration demercuration device 5 At the position of nearly denitration demercuration device 5) it is equipped with ammonium hydroxide bringing device 4, the connection between the denitration demercuration device 5 and raw material mill 9 Air hose 8 is equipped with desulfurizing agent injection apparatus 7, which is connected with desulfurizing agent powder cabin 6.
Further, between the kiln tail preheater 1 and high-temperature blower 3 be equipped with waste heat boiler 2, the waste heat boiler 2 it is main Effect is to carry out a degree of recuperation of heat to the high-temperature flue gas come out in kiln tail preheater, to increase smoke heat energy utilization rate.
Wherein, deashing device is equipped in the denitration demercuration device, the deashing device is for purging catalyst surface (catalysis Agent is porous type, and surface includes inner surface and outer surface) dust stratification, to prevent dust blocking catalyst.The deashing device It can be compressed air type deashing device.
Embodiment 2
The present embodiment 2 provides a kind of cement kiln flue gas denitration demercuration sulfur method based on system described in embodiment 1, including Following steps:
Step 1: by from kiln tail preheater flue gas (flue-gas temperature be 280~350 DEG C, dust concentration be 80~ 100g/Nm3) by waste heat boiler, the flue gas after waste heat boiler recuperation of heat utilization enters after high-temperature blower has included denitration Demercuration catalyst denitration demercuration device (exit gas temperature of high-temperature blower be 150~250 DEG C, dust concentration be 60~ 80g/Nm3), while at the import air hose of denitration demercuration device spray into ammonium hydroxide (mass concentration 10~30% of the ammonium hydroxide of penetrating, Flow is 0.1~1m3/ h) so that flue gas carries out denitration and mercury oxidation in denitration demercuration device, i.e., by conversion of nitrogen oxides For nitrogen and water, compound is converted by Elemental Mercury, reduces nitrogen oxides in effluent and simple substance mercury content (specially in flue gas The NH of NOx and penetrating3.H2O carries out catalytic oxidation-reduction reaction under denitration demercuration catalyst action and generates N2And H2O, while cigarette Hg in gas is oxidized to Hg2+)；
Step 2: entered in raw material mill by desulfuring and denitrifying apparatus treated flue gas by connecting air hose, while to Desulfurizing agent (fine powder) is sprayed into (close to desulfuration demercuration device) in this connection air hose, to reduce the sulfur dioxide in flue gas and carry out mercury Absorption (the SO in desulfurizing agent and flue gas2And Hg2+Acid-base reaction and adsorption reaction occur respectively, to realize that the depth of flue gas is de- Nitre desulfuration demercuration)；
Step 3: the flue gas entered in raw material mill dries cement raw material, raw material disintegrating outlet flue gas enters bag receipts Dirt device in flue gas dust and desulfurizing agent remove, the clean flue gas after dedusting enters chimney heel row by last row blower Out.
Wherein, mercury catalyst is dragged in the denitration and desulfurizing agent is catalyst in the prior art, the desulfurizing agent powder cabin Partial size≤50 μm of interior desulfurizing agent.
The present invention provides catalytic active site using denitration demercuration catalyst for flue gas NOx of cement kiln reaction, and can aoxidize Hg； Utilize the alkalinity and SO of desulfurizing agent2Acid-base reaction occurs, generates sulfate, while desulfurizing agent is to Hg2+There is very strong adsorptivity, it will Hg2+Adsorbing and removing.
Embodiment 3
Denitration is carried out to certain cement production enterprise kiln exit gas using system described in embodiment 1 and drags mercury desulfurization process, wherein Enterprise's kiln exit gas weight NOx content is 175.74~400mg/Nm3, mean concentration 287.84mg/Nm3；SO2Content is 75.60 ~100mg/Nm3, mean concentration 87.80mg/Nm3；Hg content is 27.51~50 μ g/Nm3, mean concentration is 38.75 μ g/ Nm3.High-temperature blower exit gas temperature is 150~250 DEG C, and dust concentration is 60~80g/Nm3, NOx and spray into flue gas NH3.H2O carries out catalytic oxidation-reduction reaction under denitration demercuration catalyst action and generates N2And H2O, while the Hg in flue gas is by oxygen It is melted into Hg2+；In uniformly spray (in the connection air hose between denitration demercuration device and raw material mill) in denitration demercuration device exhaust pass Penetrate highly active desulfurization agent fine powder, the SO in desulfurizing agent and flue gas2And Hg2+Soda acid and adsorption reaction occur respectively；Cigarette after reaction Gas successively passes through raw material mill, dust-precipitator and last row blower and drains into chimney, into atmospheric environment.After the completion of denitration desulfuration demercuration, It is 24.64mg/Nm that the NOx concentration in kiln exit gas is detected at chimney3, removal rate is up to 91.44%； SO2Concentration is 1.43mg/ Nm3, removal rate is up to 98.37%；Hg concentration is 5 μ g/Nm3, removal rate is up to 87.1%.Chimney breast flue gas NOx, SO2With the row of Hg Put the minimum discharge requirement that concentration is all satisfied cement industry.
It is above-described to be merely a preferred embodiment of the present invention, it should be understood that the explanation of above embodiments is only used In facilitating the understanding of the method and its core concept of the invention, it is not intended to limit the scope of protection of the present invention, it is all of the invention Any modification for being made within thought and principle, equivalent replacement etc., should all be included in the protection scope of the present invention.

Claims (8)

1. a kind of cement kiln flue gas denitration demercuration desulphurization system, it is characterised in that: including the kiln tail preheating being sequentially connected in order Device, high-temperature blower, the denitration demercuration device for including denitration demercuration catalyst, raw material mill, dust-precipitator, last row blower and chimney；Institute The connection air hose stated between high-temperature blower and denitration demercuration device is equipped with ammonium hydroxide bringing device, the denitration demercuration device and raw material Connection air hose between mill is equipped with desulfurizing agent injection apparatus, which is connected with desulfurizing agent powder cabin.
2. a kind of cement kiln flue gas denitration demercuration desulphurization system according to claim 1, it is characterised in that: the kiln tail is pre- Waste heat boiler is equipped between hot device and high-temperature blower.
3. a kind of cement kiln flue gas denitration demercuration desulphurization system according to claim 1 or 2, it is characterised in that: described de- The deashing device for purging catalyst surface dust stratification is equipped in nitre mercury removal device.
4. a kind of cement kiln flue gas denitration demercuration sulfur method based on system described in claim 1, it is characterised in that: including such as Lower step:
It has included denitration Step 1: the flue gas from kiln tail preheater is passed sequentially through to enter after waste heat boiler, high-temperature blower and has taken off The denitration demercuration device of mercury catalyst, while ammonium hydroxide is sprayed at the import air hose of denitration demercuration device, so that flue gas is de- Denitration and mercury oxidation are carried out in nitre mercury removal device；
Step 2: being entered in raw material mill by desulfuring and denitrifying apparatus treated flue gas by connecting air hose, while connecting herein Desulfurizing agent is sprayed into air duct, to reduce the sulfur dioxide in flue gas and carry out mercury absorption；
Step 3: the flue gas entered in raw material mill dries cement raw material, raw material disintegrating outlet flue gas enters bag collector To in flue gas dust and desulfurizing agent remove, the clean flue gas after dedusting is discharged after entering chimney by last row blower.
5. a kind of cement kiln flue gas denitration demercuration sulfur method according to claim 4, it is characterised in that: the kiln tail is pre- The exit gas temperature of hot device is 280~350 DEG C, and dust concentration is 80~100g/Nm3。
6. a kind of cement kiln flue gas denitration demercuration sulfur method according to claim 5, it is characterised in that: institute in step 1 The exit gas temperature for stating high-temperature blower is 150~250 DEG C, and dust concentration is 60~80g/Nm3。
7. a kind of cement kiln flue gas denitration demercuration sulfur method according to claim 4, it is characterised in that: institute in step 1 The mass concentration 10~30% of the ammonium hydroxide of penetrating, flow are 0.1~1m3/h。
8. a kind of cement kiln flue gas denitration demercuration sulfur method according to claim 4, it is characterised in that: the desulfurizing agent Partial size≤50 μm of desulfurizing agent in powder cabin.
CN201910223854.9A 2019-03-22 2019-03-22 A kind of cement kiln flue gas denitration demercuration desulphurization system and method Pending CN109985516A (en)

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PCT/CN2019/088673 WO2020191915A1 (en) 2019-03-22 2019-05-27 Cement kiln flue gas denitration, demercuration, and desulphurisation system and method

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021051937A1 (en) * 2019-09-16 2021-03-25 中国科学院过程工程研究所 Scr denitration system for cement kiln flue gas
CN112742205A (en) * 2019-10-31 2021-05-04 广东万引科技发展有限公司 Novel biomass denitration agent for dry-process cement kiln, use method of novel biomass denitration agent and denitration system
CN113332839A (en) * 2021-04-25 2021-09-03 北京建筑材料科学研究总院有限公司 Cement kiln flue gas desulfurization and denitrification coupling recycling system and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016022439A (en) * 2014-07-23 2016-02-08 太平洋セメント株式会社 Cement kiln exhaust gas treatment apparatus and treatment method
CN105833692A (en) * 2016-05-24 2016-08-10 安徽威达环保科技股份有限公司 Industrial fume dry type low-temperature synergic dedusting desulfurization and denitrification mercury removal integrated device and process
CN106975331A (en) * 2017-04-27 2017-07-25 北京清新环境技术股份有限公司 A kind of smoke catalytic absorbing synergic mercury removal device and its method
CN109364741A (en) * 2018-11-15 2019-02-22 安徽威达环保科技股份有限公司 A kind of cement kiln flue gas dry desulfurization and high dirt SCR denitration device and technique
CN208599489U (en) * 2018-08-03 2019-03-15 南京凯盛国际工程有限公司 A kind of cement kiln flue gas SCR denitration system
CN209663039U (en) * 2019-03-22 2019-11-22 南京凯盛国际工程有限公司 A kind of cement kiln flue gas denitration demercuration desulphurization system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH692181A5 (en) * 1995-09-08 2002-03-15 Elex Ag Flue gas cleaning system.
CN104645828B (en) * 2015-02-12 2017-01-04 浙江省环境保护科学设计研究院 A kind of SCR denitration device being applied to cement clinker production line kiln tail high-dust flue gas and method
CN105344234A (en) * 2015-10-30 2016-02-24 无锡华光新动力环保科技股份有限公司 Flue gas concerted catalytic denitration and demercuration technology

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016022439A (en) * 2014-07-23 2016-02-08 太平洋セメント株式会社 Cement kiln exhaust gas treatment apparatus and treatment method
CN105833692A (en) * 2016-05-24 2016-08-10 安徽威达环保科技股份有限公司 Industrial fume dry type low-temperature synergic dedusting desulfurization and denitrification mercury removal integrated device and process
CN106975331A (en) * 2017-04-27 2017-07-25 北京清新环境技术股份有限公司 A kind of smoke catalytic absorbing synergic mercury removal device and its method
CN208599489U (en) * 2018-08-03 2019-03-15 南京凯盛国际工程有限公司 A kind of cement kiln flue gas SCR denitration system
CN109364741A (en) * 2018-11-15 2019-02-22 安徽威达环保科技股份有限公司 A kind of cement kiln flue gas dry desulfurization and high dirt SCR denitration device and technique
CN209663039U (en) * 2019-03-22 2019-11-22 南京凯盛国际工程有限公司 A kind of cement kiln flue gas denitration demercuration desulphurization system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"《环境与健康：河北省环境科学学会环境与健康论坛暨2008年学术年会论文集河北省环境科学学会编》", vol. 1, 石家庄：河北科学技术出版社, pages: 265 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021051937A1 (en) * 2019-09-16 2021-03-25 中国科学院过程工程研究所 Scr denitration system for cement kiln flue gas
CN112742205A (en) * 2019-10-31 2021-05-04 广东万引科技发展有限公司 Novel biomass denitration agent for dry-process cement kiln, use method of novel biomass denitration agent and denitration system
CN112742205B (en) * 2019-10-31 2024-01-23 广东万引科技发展有限公司 Novel biomass denitration agent for dry-method cement kiln, application method of novel biomass denitration agent and denitration system
CN113332839A (en) * 2021-04-25 2021-09-03 北京建筑材料科学研究总院有限公司 Cement kiln flue gas desulfurization and denitrification coupling recycling system and method

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