CN108003960A - A kind of agglomeration for iron mine biomass fuel and its preparation method and application - Google Patents

A kind of agglomeration for iron mine biomass fuel and its preparation method and application Download PDF

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Publication number
CN108003960A
CN108003960A CN201711370241.5A CN201711370241A CN108003960A CN 108003960 A CN108003960 A CN 108003960A CN 201711370241 A CN201711370241 A CN 201711370241A CN 108003960 A CN108003960 A CN 108003960A
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biomass
agglomeration
biomass fuel
iron mine
fuel
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CN108003960B (en
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刘超
赵凯
邢宏伟
张玉柱
康月
张巧荣
张伟
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North China University of Science and Technology
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North China University of Science and Technology
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00Solid fuels
    • C10L5/40Solid fuels essentially based on materials of non-mineral origin
    • C10L5/44Solid fuels essentially based on materials of non-mineral origin on vegetable substances
    • C10L5/445Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The invention discloses a kind of agglomeration for iron mine biomass fuel and its preparation method and application, the biomass fuel is the requirement according to agglomeration for iron mine fuel, biomass is molded and is carbonized first, then parcel processing is filled to biomass fuel using urea liquid and CaO powder, solve the defects of biomass is loose porous, big, the fixed carbon content of specific surface area is low, reaction is too fast, the biomass fuel performance indicator of preparation is close to coke powder, alternative part coke powder is sintered production, while can effectively suppress the discharge capacity of pollutant in agglomeration for iron mine production process.

Description

A kind of agglomeration for iron mine biomass fuel and its preparation method and application
Technical field
The invention belongs to Ferrous Metallurgy sintering fuel technical field, relates in particular to a kind of agglomeration for iron mine biomass fuel Material and its preparation method and application.
Background technology
2016, the 338 urban atmosphere PM in the whole nation2.5Average annual concentration is 47 μ g/m3, than《Ambient air quality GB3095-2012》Limit value is high by 34%, is that standard of the World Health Organization obtains 4.7 times, serious deterioration living environment, life threatening Health, causes whole society's highest attention and worry.PM2.5Haze weather " arch-criminal ", including flue dust etc. primary particulate and SO2、NOxThe secondary aerosol species being transformed Deng gaseous precursors thing, difficulty of governance are big.China's steel and iron industry flowage structure with blast furnace- Based on bof process, 8.0837 hundred million tons of China's iron and steel output in 2016,1 ton of steel produces 2.5 tons of CO2, the SO of 1.6kg2, 0.32kg Dust, the industrial dust of 0.81kg.Steel industry discharge exhaust emission in there are about more than 40% dust, more than 70% SO2With more than 50% NOxFrom sintering machine.More than 90% NO produced in sintering processxCome from the organic nitrogen-containing in fuel Compound.Sinter SO in flue gas2Source be mainly FeS in iron ore2Or the S in FeS, fuel and oxygen reaction generation, generally Think that S generates SO2Ratio can reach 85%~95%.Sinter the CO in flue gasxCome from the burning of sintering fuel.Therefore, with Environmental protection and comprehensive utilization of resources are starting point, develop the novel environment-friendly sintering fuel of substitution traditional fuel, realize control Sintering pollution source is most direct, the effective means for controlling Ore Sintering Process pollutant emission.
Biomass energy is reproducible clean energy resource, it is derived from a wealth of sources, and reserves are huge and can regenerate.Face mineral products money The increasingly deficient present situation in source, seeks, using circular economy, the ecological economy as guidance, to adhere to that the strategy of sustainable development has become the world Common recognition, bases oneself upon the height of protection mankind's natural resources and ecological environment, substantially effectively utilizes biomass enrich, reproducible Resource is very necessary.It is sintered using biomass energy Substitute coal quasi-fossil fuel, its CO produced that burns2Participate in atmospheric carbon Circulation, in addition the characteristics of the low S of biomass fuel, low N, thus can reduce sintering CO from source2、SO2、NOxGeneration.But by Cause combustion reaction too fast in biomass fuel is loose porous, and density is small, and calorific value is low, and directly applying to agglomeration for iron mine can lead Flame front is caused to be mismatched with heat wave leading peak rate travel, sinter bed temperature is low, finally influences sintered ore rotary drum strength, finished product The performance indicators such as rate.Biomass fuel should be handled by necessary technological means, its reactivity be reduced, before making flame Peak is matched with heat wave leading peak rate travel, is increased it and is fixed carbon content, improves fuel value.At present, Application No. 201110180200.6 patent obtains the biomass carbon fuel of sintering, substitutes burnt by the way that biomass is carried out charing process The fossil energies such as powder, anthracite make sintering fuel, realize the clean manufacturing of agglomeration for iron mine;The biology of application number 201110180196.3 The preparation of matter shaped fuel is hot-forming under conditions of addition Ludox, calcium hydroxide, obtains solid molding fuel.But Whole preparation method for the biomass fuel for suppressing sintered pollutant, in particular with urea liquid and CaO powder to life Biomass fuel fills technique for packing, realizes the SO produced to agglomeration for iron mine2And NOxEmission reduction Deng pollutant is rarely reported.
The content of the invention
In order to solve the deficiencies in the prior art, it is an object of the present invention to provide a kind of biology suitable for agglomeration for iron mine Matter fuel and its preparation method and application, according to the requirement of agglomeration for iron mine fuel, is molded biomass and is carbonized, so first Parcel processing is filled to biomass fuel using urea liquid and CaO powder afterwards, solution biomass is loose porous, compares surface The defects of big, the fixed carbon content of product is low, reaction is too fast, while can effectively suppress the row of pollutant in agglomeration for iron mine production process High-volume.
First purpose of the present invention is to provide a kind of preparation method of agglomeration for iron mine biomass fuel, including following step Suddenly:
S1:Formed at normal temp is carried out to biomass, obtains shaping biomass;
S2:Carbonized to being molded biomass made from S1, charcoal is divided into two stages, the condition of first stage charing For:In a nitrogen environment, will made from S1 be molded biomass with the heating rate of 5~10 DEG C/min by room temperature to 350~ 450℃;Second stage charing condition be:In a nitrogen environment, continue shaping biomass with the heating of 15~25 DEG C/min Speed is warming up to 550~650 DEG C;Subsequent cooled to room temperature, obtains charing biomass;
S3:Being crushed biomass is carbonized made from S2, grinding particle size is 2~5mm, obtains charing biological particles, Urea liquid is uniformly sprayed on the charing biological particles, so that the surface infiltration of the charing biological particles, obtains Infiltration charing biomass;
S4:According to mass ratio 0.05~0.2:1 ratio takes CaO powder of the granularity less than or equal to 10 μm and S3 to be made respectively Infiltration charing biomass, the biomass fuel is obtained after stirring and evenly mixing.
Preferably, in S1, the biomass is any one or it in sawdust, crop material, bagasse or shell Combination.
It is highly preferred that in S1, formed at normal temp condition is:20~50MPa of briquetting pressure, molding time are 60~90s.
Preferably, in S3, the quality of urea makes a living the 1~3% of material mass in urea liquid.
It is highly preferred that in S4, the CaO powder carbonizes the mass ratio 0.1 of biomass with the infiltration:1.
It is highly preferred that in S4, when stirring and evenly mixing, stir speed (S.S.) 90r/min, mixing time is 100~150s.
What second object of the present invention was to provide that any of the above-described method is prepared can suppress agglomeration for iron mine pollutant The biomass fuel of discharge, the biomass fuel density are 0.85~0.94g/cm3, fixed carbon content for 78.45~ 82.77%.
Third object of the present invention is to provide application of the above-mentioned biomass fuel in agglomeration for iron mine.
Preferably, when specifically used, by the biomass fuel and coke powder according to weight ratio 2:3~5 ratio uniform mixes Close, obtain fuel combination, then fuel combination is uniformly mixed and is sintered with raw materials for sintering.
Compared with prior art, the beneficial effects of the present invention are:
(1) biomass fuel provided by the invention, density is in 0.85~0.94g/cm3Between, compactness is good, and with low S, the characteristics of low N, CO caused by burning2Atmospheric carbon cycle is participated in, thus sintering CO can be reduced from source2、SO2、NOxProduction It is raw.
(2) the characteristics of present invention is high for biomass volatile matter, and fixed carbon is low, carries out biomass charing modification, improves The fixation carbon content of biomass, gained biomass fuel fixes carbon content and is increased to 78.45~82.77% after charing, with Jiao The fixation carbon content of powder is suitable;Since in carbonization process, the volatile matter of biomass constantly removes, biomass porosity can be caused to increase More, specific surface area increase, is filled and is wrapped up using CaO powder of the particle diameter less than 10 μm, isolated excessive air and contact Reaction, can make the reactivity reduction of biomass fuel, slow down the burning velocity of biomass fuel;Using urea liquid to biomass Fuel is soaked, and using being mixed after CaO powder filling with coke powder, urea can be made to come into full contact with mixing, urea with fuel It is decomposed thermally to form NH3The NO that will be able to can be sintered with HNCO in flue gasxIt is reduced into N2, with SO2Reaction generation (NH4)2SO4, Reduce NOxAnd SO2Discharge capacity;The chlorine source in raw materials for sintering is absorbed, suppresses " de novo formation " reaction of bioxin, reduces Er Evil English discharge capacity.
(3) present invention is molded biomass, is carbonized, after the filling parcel processing of urea and CaO powder, and biomass is fixed The performance indicators such as carbon content, reactivity and flammability are close to coke powder, and alternative part coke powder is sintered production, in sintering process Middle biomass fuel release heat passes to the CaO powder being attached on the biomass fuel first so that CaO powder and iron charge Fully reaction, generates ferrous acid calcium phase, calcium ferrite can suppress NO while guarantee sinters ore deposit performance into around fuelxPollutant Generation.Therefore, biomass fuel of the invention meets the requirement of agglomeration for iron mine clean manufacturing, has preferable economic benefit, society Meeting benefit and environmental benefit, meet the fundamental policies of national energy-saving emission reduction and comprehensive utilization of resources.
Embodiment
In order to enable those skilled in the art to more fully understand, technical scheme is practiced, with reference to specific The invention will be further described for embodiment, but illustrated embodiment is not as a limitation of the invention.
Unless otherwise defined, the hereinafter all technical terms used for being and the normally understood implication of those skilled in the art It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention Protection domain.Unless otherwise specified, the various raw materials used in the following embodiment of the present invention, reagent, instrument and set It is standby to be commercially available by market or be prepared by existing method.
It should be noted that room temperature involved in following embodiments of the present invention is that temperature is 20~25 DEG C.
Embodiment 1
A kind of agglomeration for iron mine biomass fuel of the present embodiment, its preparation process are specific as follows:
Choose sawdust be used as the raw material for preparing agglomeration for iron mine biomass fuel, to sawdust progress formed at normal temp, room temperature into The pressure of type is 30MPa, and the time of formed at normal temp is 80 seconds, obtains shaping biomass;Then to it is obtained shaping biomass into Row charing, charcoal are divided into two stages, and the first stage condition of charing is:In a nitrogen environment, controlled atmosphere resistance furnace is utilized Shaping biomass is set to rise to 400 DEG C by room temperature with the heating rate of 8 DEG C/min;Second stage charing condition be:In nitrogen ring Under border, 600 DEG C are warming up to the heating rate of 20 DEG C/min again using controlled atmosphere resistance furnace, subsequent cooled to room temperature, Obtain charing biomass;
We crush to carbonizing biomass made from the above process so that the granularity of the charing biomass reach 2~ 5mm, obtains charing biological particles, and charing biological particles are put into disk blender, on charing biological particles Even sprinkling urea liquid, the quality of urea makes a living the 2% of material mass in urea liquid, so that the surface of charing biological particles Infiltration, obtains infiltration charing biomass;And charing biomass will be infiltrated and uniformly stirred with CaO powder of the granularity less than or equal to 10 μm Mix, obtain biomass fuel, wherein the mixed uniformly time is 120s, the quality of CaO powder carbonizes the matter of biomass for infiltration The 10% of amount.
Embodiment 2
A kind of agglomeration for iron mine biomass fuel of the present embodiment, its preparation process and embodiment 1 are identical, and difference only exists In selection maize straw is as the raw material for preparing agglomeration for iron mine biomass fuel.
Embodiment 3
A kind of agglomeration for iron mine biomass fuel of the present embodiment, its preparation process and embodiment 1 are identical, and difference only exists In the quality of CaO powder is the 15% of the quality of infiltration charing biomass.
Embodiment 4
A kind of agglomeration for iron mine biomass fuel of the present embodiment, its preparation process and embodiment 1 are identical, and difference only exists In the quality of CaO powder is the 20% of the quality of infiltration charing biomass.
Comparative example 1
A kind of agglomeration for iron mine biomass fuel of this comparative example, its preparation process and embodiment 1 are identical, and difference only exists In the quality of CaO powder is the 5% of the quality of infiltration charing biomass.
1~embodiment of the embodiment of the present invention 4, and the biomass fuel of the preparation of comparative example 1 and coke powder Industrial Analysis are shown in Table 1, specific surface area and pore-size distribution are shown in Table 2, and density is shown in Table 3.
(mass percent, %) is analyzed in 1 fuel industry of table
2 fuel specific surface area of table and pore-size distribution
3 fuel density measured value of table
4 fuel combustion characteristics parameter of table
We it can be seen from the data of table 1-4 using the biomass fuel that CaO and urea liquid are modified, with CaO The increase of modifying agent additive amount, fixed carbon content and volatile matter reduce, ash content, moisture and density increase;Specific surface area and pore volume Aperture is on a declining curve, reaction temperature, and peak temperature and reaction terminating temperature improve.The reason for causing this result is to pass through CaO and it is urea-modified after biomass fuel surface and aperture in adhere to CaO powder so that specific surface area and pore volume aperture drop Low, being attached to the CaO powder on surface can stop that oxygen is contacted with fuel, destroy biomass fuel material kinetics of combustion condition, Biomass fuel is set to react start temperature, peak temperature and reaction terminating temperature improve;The CaO modifying agent density of biomass fuel It is modified to raise biomass fuel global density more than charcoal;CaO modifying agent retains after biomass fuel calcining, makes biology The increase of matter fuel ash.But when CaO modifying agent increases to after 10%, the change of biomass fuel parameters is little, explanation The additive amount of CaO modifying agent not be influence biomass fuel physical property limiting factor, the rational CaO modifying agent of biomass fuel Additive amount is the 10% of fuel.
In view of 1~embodiment of the embodiment of the present invention 4 prepare biomass fuel superior function, alternative part coke powder into Row agglomeration for iron mine produce, below we just by embodiment 1 offer biomass fuel exemplified by, further illustrate in exemplary fashion They are while ore deposit performance is sintered into, to the inhibition of agglomeration for iron mine flue gas pollutant.
Embodiment 5
Matched according to raw materials for sintering mass fraction, 83.86% iron charge of addition, 3.00% lime stone, 3.84% lime Cup (Φ 200mm × 720mm) experiment is sintered with 4.81% dolomite, raw materials for sintering chemical composition TFe is 50.89%, FeO For 4.28%, SiO2For 3.86%, CaO 7.83%, MgO 1.97%, TiO2For 0.14%, basicity 2.0.
Coke powder additive amount is 4.0% in normal sintering, and biomass fuel provided in the present embodiment using embodiment 1 etc. Fixed carbon content substitutes 20% coke powder and is sintered, since the charcoal in biomass fuel can participate in atmospheric air circulation, biology The replacement amount of matter fuel is emission reduction, that is, emission reduction 20%CO2, being capable of emission reduction 16%SO2, and 35%NOX, obtain sintering technology index In vertical sintering rate, yield rate and drum strength be above full coke powder sintering, it sinters index and is shown in Table 5.
Embodiment 6
Matched according to raw materials for sintering mass fraction, 83.86% iron charge of addition, 3.00% lime stone, 3.84% lime Cup (Φ 200mm × 720mm) experiment is sintered with 4.81% dolomite, raw materials for sintering chemical composition TFe is 50.89%, FeO For 4.28%, SiO2For 3.86%, CaO 7.83%, MgO 1.97%, TiO2For 0.14%, basicity 2.
Coke powder additive amount is 4.0% in normal sintering, and biomass fuel provided in the present embodiment using embodiment 1 etc. Fixed carbon content substitutes 40% coke powder and is sintered, since the charcoal in biomass fuel can participate in atmospheric air circulation, biology The replacement amount of matter fuel is emission reduction, that is, emission reduction 40%CO2, being capable of emission reduction 35%SO2, 63%NOXWith 76% bioxin, burnt Yield rate in technical indicator is tied, drum strength is slightly below full coke powder sintering, but is not much different, it sinters index and is shown in Table 5.
Sintering technology index under the different biomass fuel substitution ratios of table 5
As can be seen from Table 5, the reactivity and combustibility for the biomass fuel that prepared by the embodiment of the present invention 1 compare coke powder It is good, therefore after a certain proportion of biomass fuel of addition, the vertical combustion speed of sintering accelerates, and adding with biomass fuel Dosage increases and accelerates, and sintering process shortens, and is conducive to raising sintering rate, but with the lasting addition of biomass fuel, Combustion front velocity is persistently accelerated, and causes unbalance with heat front velocity, and sintered ore rotary drum strength and yield rate become in reduction Gesture, should be properly added biomass fuel, preferably control biomass fuel with coke powder according to weight ratio 2:3~5 ratio mixing makes With good effect can be played.C in biomass fuel provided in an embodiment of the present invention can participate in atmospheric air circulation, make new The CO of generation2Reducing, S and N content are below coke powder in biomass fuel, with the increase of biomass fuel, the SO in flue gas2 And NOxContent also decreases.Be conducive to the chlorine source in absorption raw materials for sintering with addition of urea in biomass fuel, Er Evil can be destroyed The de novo formation reaction of English, reduces the discharge capacity of bioxin.The biomass fuel for suppressing agglomeration for iron mine pollutant is applied to iron ore In sintering production, sintering flue gas pollutant discharge can be reduced, meets the requirement of agglomeration for iron mine clean manufacturing, meets national energy-saving and subtract Row and the fundamental policies of comprehensive utilization of resources.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these modification and variations.Embodiment described above is only to absolutely prove the present invention And the preferred embodiment lifted, its protection domain not limited to this.Those skilled in the art institute on the basis of the present invention The equivalent substitute of work or conversion, within protection scope of the present invention, protection scope of the present invention is subject to claims.

Claims (10)

1. a kind of preparation method of agglomeration for iron mine biomass fuel, it is characterised in that include the following steps:
S1:Formed at normal temp is carried out to biomass, obtains shaping biomass;
S2:Carbonized to being molded biomass made from S1, charcoal is divided into two stages, and the first stage condition of charing is: Under nitrogen environment, will made from S1 be molded biomass with the heating rate of 5~10 DEG C/min by room temperature to 350~450 DEG C; Second stage charing condition be:In a nitrogen environment, continue shaping biomass with the heating rate liter of 15~25 DEG C/min Temperature is to 550~650 DEG C;Subsequent cooled to room temperature, obtains charing biomass;
S3:Crushed biomass is carbonized made from S2, grinding particle size is 2~5mm, charing biological particles is taken, described Carbonize and urea liquid is uniformly sprayed on biological particles, so that the surface infiltration of the charing biological particles, obtains infiltration charcoal Metaplasia material;
S4:According to mass ratio 0.05~0.2:1 ratio takes CaO powder of the granularity less than or equal to 10 μm and the obtained leachings of S3 respectively Profit charing biomass, obtains the biomass fuel after stirring and evenly mixing.
2. the preparation method of agglomeration for iron mine biomass fuel according to claim 1, it is characterised in that described in S1 Biomass is any one or combinations thereof in sawdust, crop material, bagasse or shell.
3. the preparation method of agglomeration for iron mine biomass fuel according to claim 2, it is characterised in that in S1, room temperature Condition of molding is:20~50MPa of briquetting pressure, molding time are 60~90s.
4. the preparation method of agglomeration for iron mine biomass fuel according to claim 1, it is characterised in that in S3, urea The quality of urea makes a living the 1~3% of material mass in solution.
5. the preparation method of agglomeration for iron mine biomass fuel according to claim 1, it is characterised in that described in S4 CaO powder carbonizes the mass ratio 0.1 of biomass with the infiltration:1.
6. the preparation method of agglomeration for iron mine biomass fuel according to claim 5, it is characterised in that in S4, stirring During mixing, stir speed (S.S.) 90r/min, mixing time is 100~150s.
7. the agglomeration for iron mine biomass fuel being prepared according to any the method for claim 1~6.
8. agglomeration for iron mine biomass fuel according to claim 7, it is characterised in that the biomass fuel density is 0.85~0.94g/cm3, fixed carbon content is 78.45~82.77%.
9. application of the biomass fuel according to claim 7 in agglomeration for iron mine.
10. application according to claim 9, it is characterised in that in use, by the biomass fuel and coke powder according to weight Measure ratio 2:3~5 ratio uniform mixing, obtains fuel combination, then fuel combination is uniformly mixed and carried out with raw materials for sintering Sintering.
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CN109135861A (en) * 2018-10-08 2019-01-04 宁波大学 A kind of iron ore sintering coats the preparation method of fuel with biomass carbon
CN109233935A (en) * 2018-09-30 2019-01-18 安徽工业大学 A kind of the joint emission reduction device and its application method of agglomeration for iron mine various pollutants of fume
CN113789438A (en) * 2021-08-31 2021-12-14 北京科技大学 Method for sintering iron ore by using carbon-containing organic material
CN114657001A (en) * 2022-03-30 2022-06-24 鞍钢股份有限公司 Method for manufacturing composite fuel for sintering
CN115181597A (en) * 2022-06-30 2022-10-14 武汉钢铁有限公司 Biomass fuel, preparation method thereof and application thereof in iron ore sintering

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CN105567375A (en) * 2014-10-09 2016-05-11 无锡荣博能源环保科技有限公司 Composite additive
CN106282542A (en) * 2015-05-13 2017-01-04 上海梅山钢铁股份有限公司 A kind of collaborative discharge-reducing method of sintering process multiple pollutant

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CN108913270A (en) * 2018-08-13 2018-11-30 安徽省中正农业科技开发有限公司 A method of reducing straw biological granular fuel volatile matter
CN109233935A (en) * 2018-09-30 2019-01-18 安徽工业大学 A kind of the joint emission reduction device and its application method of agglomeration for iron mine various pollutants of fume
CN109135861A (en) * 2018-10-08 2019-01-04 宁波大学 A kind of iron ore sintering coats the preparation method of fuel with biomass carbon
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CN114657001A (en) * 2022-03-30 2022-06-24 鞍钢股份有限公司 Method for manufacturing composite fuel for sintering
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CN115181597A (en) * 2022-06-30 2022-10-14 武汉钢铁有限公司 Biomass fuel, preparation method thereof and application thereof in iron ore sintering

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Application publication date: 20180508

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Denomination of invention: A kind of biomass fuel for iron ore sintering and its preparation method and application

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