CN104232883B - A kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio - Google Patents
A kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio Download PDFInfo
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- CN104232883B CN104232883B CN201310244681.1A CN201310244681A CN104232883B CN 104232883 B CN104232883 B CN 104232883B CN 201310244681 A CN201310244681 A CN 201310244681A CN 104232883 B CN104232883 B CN 104232883B
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Abstract
The invention discloses a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio, first the method for returning mine and fine ore is sieved into two parts by grade 1.0 2.0mm and 4.0 5.0mm respectively.Second, returning mine little grade and fine ore, carry out a strong stirring with other dispensings preparing sinter mixture of iron ore concentrate, iron content solid waste, solid fuel and flux to mix and secondary cylinder mixing granulation, during carrying out secondary cylinder mixing granulation, add returning mine of big grade.3rd, the compound that secondary cylinder mixing granulation obtains is being transported to be uniformly added into during blending bunker is used for cloth the fine ore of big grade.Finally use segregation distribution mode to make compound produce rational particle segregation along pallet short transverse, after igniting sintering, form sintering deposit.Method according to the invention it is possible to improve the granulating efficiency of sinter mixture, improve the bed permeability of sintering process, improve iron ore concentrate consumption and blast furnace feeding furnace charge grade, optimize production and technical indication.
Description
Technical field
The present invention relates to metallurgical industry sintering art, particularly relate to a kind of raising cemented iron concentrate consumption and productivity ratio
Mineral aggregate using method.
Background technology
Sintering deposit is the main furnace charge of China's blast furnace ironmaking, accounts for more than the 70% of stove iron charge.Owing to sintering is main
Wanting the in poor quality of raw material Iron Ore Powder, the grade of sinter of steel plant presents downward trend in recent years, thus gives blast furnace
Stable smooth operation brings adverse effect, is also unfavorable for reducing blast furnace ironmaking cost.
In order to improve grade of sinter, part producing factory starts to allocate into high-grade iron ore concentrate, but improves iron ore concentrate
Consumption after productivity of sinter decrease, thus the proportioning of iron ore concentrate is relatively low in SINTERING PRODUCTION all the time,
General all below 15%.But, in sintering production process, the factor of restriction productivity of sinter is a lot, its
In the most crucial breathability that bottleneck is sinter bed, improve life by the breathability improving sinter bed
Productivity is the developing direction of sintering technology.
The iron companies such as Nippon Steel once used in sinter bed the measure such as mounting bracket or ventilation rods to improve the bed of material
Breathability, but this is done so that cost of investment increases, and iron ore concentrate usage amount is the most limited.Northeastern Japan university carries
Go out inserted agglomeration for iron mine technology, in sinter bed, i.e. inserted green pellets, by " wall effect " about
Form density regions, suppress sinter bed to shrink the supporting role on top by fine and close green pellets, thus burning
Ramming material layer is formed suitable ventilation path, improves permeability of sintering material bed, but it needs to use balling property relatively
Good iron ore concentrate or fine ore, and it is high to need to increase pelletizing facility, construction cost and production cost, it is difficult to promote.
Chinese patent CN101294243B discloses a kind of Pelletisation process for iron ore concentrate sintered mix, uses secondary system
Grain method is pelletized, and part Iron concentrate and quick lime be first mixed evenly to prepare bead, then with flux, coke powder and remaining
Iron-bearing material mixes, and carries out secondary granulation.Permeability of sintering material bed and productivity of sinter is improved with this.China is specially
Profit CN101570821B discloses the sintering method of a kind of high mixture ratio spiegel concentrate, is first entered by particulate spiegel concentrate
After horizontal high voltage roller mill pretreatment, mix with the organic binder bond of certain mass, use disk or cylinder pelletizing mechanism
Becoming particle diameter is the green-ball of 7mm-15mm.Carry out other iron-bearing materials, flux, coke powder etc. again mixing, at granulation
Reason, then carries out lighting a fire, sintering.
But, the raising iron ore concentrate consumption described in above-mentioned patent and the method for productivity of sinter, also it is required for increasing
Pre-processing device and pelletizing facility, and specific aim is relatively strong, the scope of application is narrower.
Summary of the invention
For overcoming disadvantages mentioned above, it is an object of the invention to: provide one to improve cemented iron concentrate consumption and production
The mineral aggregate using method of rate, method according to the invention it is possible to improve the granulating efficiency of sinter mixture, improves
The bed permeability of sintering process, improves iron ore concentrate consumption and blast furnace feeding furnace charge grade, optimizes production technology and refers to
Mark.
For achieving the above object, a kind of mineral aggregate improving cemented iron concentrate consumption and productivity ratio of the present invention makes
As follows by the technical scheme of method:
A kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio, uses and returns mine and fine ore, described
Return mine and return mine and BF return fines less than in 5.0mm after including break of sinter cake screening, i.e. blast furnace returns agglomerated powder
Mixture, described fine ore is the mixture of one or more Iron Ore Powder, comprises the steps:
(1) first will return mine and fine ore will be sieved into two parts by grade 1.0-2.0mm and 4.0-5.0mm respectively；
(2) grade is respectively smaller than returning mine and fine ore of 1.0-2.0mm and 4.0-5.0mm, with iron ore concentrate, contain
Ferrum solid waste, solid fuel and flux etc. other carry out a strong stirring for the dispensing preparing sinter mixture and mix
Close and secondary cylinder mixing granulation, during carrying out secondary cylinder mixing granulation, add the grade that screening obtains
Returning mine more than 1.0-2.0mm；
(3) compound that secondary cylinder mixing granulation obtains is being transported to during blending bunker is used for cloth
It is uniformly added into the fine ore sieving the grade obtained more than 4.0～5.0mm；
(4) segregation distribution mode is used to make compound produce rational particle segregation along pallet short transverse,
That is, big grade fine ore and compound is made to be positioned at chassis bottom as much as possible, to improve bed permeability, then
Sintering deposit is formed after igniting sintering.
According to a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio of the present invention, its feature
Being, the break of sinter cake screening that will obtain, the grade more than 5.0mm, as finished product sintering deposit, is less than
The grade of 5.0mm is returned mine as interior.
According to the present invention, the TFe content of described cemented iron concentrate is more than 62%, wherein, less than 0.074mm grain
Level content is more than 60% ".Return mine in described returning mine within sintering plant.
TFe is full ferrum.
According to a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio of the present invention, its feature
Being, the break of sinter cake screening that will obtain, the grade more than 5.0mm is as finished product sintering deposit, less than 5.0mm
Grade return mine as interior
According to a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio of the present invention, its feature
Being, described fine ore is the mixture of one or more Iron Ore Powder, and particle mean size is more than 2mm, less than 5mm.
According to a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio of the present invention, its feature
Be, described in return mine sieve for break of sinter cake after less than return mine in 5.0mm and BF return fines (blast furnace returns
Agglomerated powder) mixture, moisture is less than 1% (mass percent, lower with).
According to a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio of the present invention, its feature
Being, the TFe content of described iron ore concentrate is more than 65%, and-0.074mm grain size content is more than 60%.
According to a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio of the present invention, its feature
Being, described solid fuel is one or more mixture in coke powder, coal dust, biomass fuel.
According to a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio of the present invention, its feature
Being, the proportioning of described compound is: fine ore 30%-60%, iron ore concentrate 5%-35%, and return mine 15%-25%, contains
Ferrum solid waste 0%-2%, solid fuel 3%-4%, flux 8%-12%.
According to a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio of the present invention, its feature
Being, the principle that adds water of described processes of mixing and granulating is: holding for the mixture moisture of cloth sintering is
6.8%-7.3%, moisture does not only add in a strong stirring mixing and secondary cylinder mixing granulation and is more than
1.0-2.0mm adds before returning mine, and accounts for (a strong stirring mixing and secondary cylinder mixing granulation) respectively and always adds
80-85% and 15-20% of the water yield.
According to a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio of the present invention, its feature
Being, a described strong stirring incorporation time is 1.0-2.0min, and the secondary cylinder mixing granulation time is
3.0-4.5min。
According to a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio of the present invention, its feature
Being, described is only to remain 0.2-0.5min in the secondary cylinder mixing granulation time more than returning mine of 1.0-2.0mm
Rear addition.
According to a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio of the present invention, its feature
Being, described segregation distribution mode is magnetic roller+nine roller or magnetic roller+reflector type cloth, and magnetic roller is by round roller batcher
In cloth material roller and in cloth material roller arrange alternating polarity change permanent magnet constitute (nine rollers and reflecting plate are normal
Rule apparatus for distributing).
According to the present invention, described segregation distribution mode is magnetic roller+nine roller or magnetic roller+reflector type cloth, and it utilizes
Feed round roller with magnetic force systems makes big grade fine ore and is stained with the size fractionated compound of concentrate granule because being subject to
To magnetic force different and change fall trajectory, and strengthen segregation further by nine rollers or reflecting plate, from
And make big grade fine ore and the compound chassis bottom that is positioned at as much as possible, reach to improve bed permeability and Haematite
The purpose of mining amount.
The innovation theory basis of screening fine ore and employing strong stirring mixing is: research shows in mixture granulation mistake
In journey, < granule of 0.7mm is adhered particles, and the granule of 0.7-4mm is effective Nucleating particles, more than 4mm granule
The fine powder although easily boning, but owing to granule own is big, specific surface area is little, and bonding is the most easily broken into pieces, and
Little granule can be disturbed to pelletize.After granulation, in compound, granule grade most beneficial for breathability is 3-8mm, especially
It is 3-5mm grade.Mixed by screening fine ore and employing strong stirring, not only avoid large granular materials and do
Disturb granulation, too increase the granulator meeting of small particles material, moreover it is possible to make the hydrophilic additive of improvement compound (as
Slaked lime, quick lime etc.) it is uniformly dispersed in material surface, substantially increase the pellet performance of compound, thus
Significantly improve the granulating efficiency of compound and the breathability of sinter bed.
The innovation theory basis that screening is returned mine is: the dry granule of returning mine that uniform addition is bigger in the mixing bed of material,
Utilize and be dried the frictional force between granule and moistening mixture particle of returning mine so that it is around form density regions,
Suppress sinter bed to shrink the supporting role on top by densification granule of returning mine, thus formed in sinter bed
Suitable ventilation path.This exopathogenic factor keeps the mixture moisture for cloth sintering constant, returns adding big grade
Material water branch before ore deposit is more than final mixture moisture, and more moisture makes strong stirring of entrance
The material pelletization effect of mixing and secondary cylinder mixing granulation is improved, and is also beneficial to improve bed permeability.
In above-mentioned preparation process, sinter mixture igniting and sintering process are routine techniques, do not repeat them here.
The present invention compared with prior art has the advantages that
(1) fine ore is become two grades by the present invention with prescreening of returning mine, and little granule part is first mixed with other material
Close and pelletize, and moisture mainly adds in this stage, so certainly will increase the chance that little granule is pelletized, improve and pelletize
Effect；
(2) present invention uses strong stirring to mix, and can improve mixing homogeneity, makes flux and solid fuel obtain
To splendid dispersion, granulating efficiency can be improved and also can reduce fuel consumption；
(3) the iron ore concentrate consumption of sintering can be dramatically increased, improve blast furnace feeding sintering deposit Iron grade, reduce ferrum
Water smelting cost；
(4) return mine after being mixed into dry screening uniformly in compound granule, utilize dry granule and wet granular it
Between rubbing action improve permeability of sintering material bed, improve productivity of sinter.
Accompanying drawing explanation
Fig. 1 is technical solution of the present invention schematic diagram.
Detailed description of the invention
Hereinafter, with reference to embodiment, the present invention is illustrated.
Embodiment 1
Seeing Fig. 1, the present invention improves cemented iron concentrate consumption and the method for productivity ratio, first will return mine and powder
Ore deposit is sieved into two parts by grade 1.0-2.0mm and 4.0-5.0mm respectively.Second, grade is respectively smaller than
1.0-2.0mm and 4.0-5.0mm returns mine and fine ore, with iron ore concentrate, iron content solid waste, solid fuel and flux
Carry out a strong stirring mixing and secondary cylinder mixing granulation Deng other dispensings preparing sinter mixture, entering
Grade the returning mine more than 1.0-2.0mm that screening obtains is added during row secondary cylinder mixing granulation.3rd,
It is being transported to be uniformly added into during blending bunker is used for cloth by the compound that secondary cylinder mixing granulation obtains
The grade that screening the obtains fine ore more than 4.0～5.0mm.The mode finally using segregation distribution makes compound
Rational particle segregation is produced, even if big grade fine ore and compound are as much as possible along pallet short transverse
It is positioned at chassis bottom, improves bed permeability, then after igniting sintering, form sintering deposit.And the burning that will obtain
Molding crushing and screening, the grade more than 5.0mm is returned as interior as finished product sintering deposit, the grade less than 5.0mm
Ore deposit, inside returns mine and BF return fines returning mine together as sintering.
Below in conjunction with embodiment, the present invention will be further described.
The parameter of embodiment arranges as shown in table 1:
Table 1 embodiment parameter is arranged
Table 2 result of implementation
It is shown in Table 2 according to the result of implementation of embodiment parameter listed by table 1.Use the scheme of embodiment 1, and compare
Example is compared, and its granulation mean diameter improves 26.5%, and yield rate improves 1.6%, and usage factor improves 9.1%, turns
Drum index improves 2.1%, and solid burnup reduces by 3.6%.Use the scheme of embodiment 3, compared with reference examples, its
Granulation mean diameter improves 11.8%, and yield rate improves 0.6%, and usage factor and tumbler index are suitable, and solid fires
Consumption reduction by 2.4%.Sintering deposit TFe content improves 3.4%.
According to a kind of mineral aggregate using method improving cemented iron concentrate consumption and productivity ratio of the present invention, can improve
The granulating efficiency of sinter mixture, improves the bed permeability of sintering process, improves iron ore concentrate consumption and blast furnace enters
Stove furnace charge grade, optimizes production and technical indication.
Claims (9)
1. improve a mineral aggregate using method for cemented iron concentrate consumption and productivity ratio, use and return mine and fine ore, institute
Stating and returning mine as returning mine and BF return fines less than in 5.0mm after break of sinter cake screening, i.e. blast furnace returns agglomerated powder
Mixture, its moisture be less than 1 mass %；Described fine ore is the mixture of one or more Iron Ore Powder, bag
Include following step:
(1) first, setting up the standard particle diameter of returning mine respectively according to technological requirement is 1.0mm, sets up fine ore standard grain
Footpath is 4.0mm,
Return mine into less than returning mine standard particle diameter and more than returning mine two of standard particle diameter according to standard particle diameter screening of returning mine
Point；
Become to be less than fine ore standard particle diameter according to fine ore standard particle diameter screening fine ore and be more than two of fine ore standard particle diameter
Point；
(2) by particle diameter less than the returning mine of standard particle diameter of returning mine, particle diameter less than the fine ore of fine ore standard particle diameter, with ferrum
Concentrate, iron content solid waste, solid fuel and flux carry out a strong stirring mixing and secondary cylinder mixing granulation,
Particle diameter the returning more than standard particle diameter of returning mine that screening obtains is added during carrying out secondary cylinder mixing granulation
Ore deposit；
(3) compound that secondary cylinder mixing granulation obtains is being transported to during blending bunker is used for cloth
It is uniformly added into the particle diameter that obtains of the screening fine ore more than fine ore standard particle diameter；
(4) segregation distribution mode is used to make compound produce rational particle segregation along pallet short transverse,
That is, big grade fine ore and compound is made to be positioned at chassis bottom as much as possible, to improve bed permeability, then
Sintering deposit is formed after igniting sintering；
The quality proportioning of described compound is: fine ore 30%-60%, iron ore concentrate 5%-35%, and return mine 15%-25%,
Iron content solid waste 0%-2%, solid fuel 3%-4%, flux 8%-12%；
The principle that adds water of described processes of mixing and granulating is: holding for the mixture moisture of cloth sintering is
6.8%-7.3% (quality), moisture does not only add particle diameter in a strong stirring mixing and secondary cylinder mixing granulation
Add more than before the returning mine of standard particle diameter of returning mine, account for a strong stirring mixing and secondary cylinder mixing granulation respectively
80-85% and 15-20% of total amount of water.
2. improve a mineral aggregate using method for cemented iron concentrate consumption and productivity ratio, use and return mine and fine ore, institute
Stating and returning mine as returning mine and BF return fines less than in 5.0mm after break of sinter cake screening, i.e. blast furnace returns agglomerated powder
Mixture, its moisture be less than 1 mass %；Described fine ore is the mixture of one or more Iron Ore Powder, bag
Include following step:
(1) first, setting up the standard particle diameter of returning mine respectively according to technological requirement is 1.5mm, sets up fine ore standard grain
Footpath is 4.5mm,
Return mine into less than returning mine standard particle diameter and more than returning mine two of standard particle diameter according to standard particle diameter screening of returning mine
Point；
Become to be less than fine ore standard particle diameter according to fine ore standard particle diameter screening fine ore and be more than two of fine ore standard particle diameter
Point；
(2) by particle diameter less than the returning mine of standard particle diameter of returning mine, particle diameter less than the fine ore of fine ore standard particle diameter, with ferrum
Concentrate, iron content solid waste, solid fuel and flux carry out a strong stirring mixing and secondary cylinder mixing granulation,
Particle diameter the returning more than standard particle diameter of returning mine that screening obtains is added during carrying out secondary cylinder mixing granulation
Ore deposit；
(3) compound that secondary cylinder mixing granulation obtains is being transported to during blending bunker is used for cloth
It is uniformly added into the particle diameter that obtains of the screening fine ore more than fine ore standard particle diameter；
(4) segregation distribution mode is used to make compound produce rational particle segregation along pallet short transverse,
That is, big grade fine ore and compound is made to be positioned at chassis bottom as much as possible, to improve bed permeability, then
Sintering deposit is formed after igniting sintering；
The quality proportioning of described compound is: fine ore 30%-60%, iron ore concentrate 5%-35%, and return mine 15%-25%,
Iron content solid waste 0%-2%, solid fuel 3%-4%, flux 8%-12%；
The principle that adds water of described processes of mixing and granulating is: holding for the mixture moisture of cloth sintering is
6.8%-7.3% (quality), moisture does not only add particle diameter in a strong stirring mixing and secondary cylinder mixing granulation
Add more than before the returning mine of standard particle diameter of returning mine, account for a strong stirring mixing and secondary cylinder mixing granulation respectively
80-85% and 15-20% of total amount of water.
3. improve a mineral aggregate using method for cemented iron concentrate consumption and productivity ratio, use and return mine and fine ore, institute
Stating and returning mine as returning mine and BF return fines less than in 5.0mm after break of sinter cake screening, i.e. blast furnace returns agglomerated powder
Mixture, its moisture be less than 1 mass %；Described fine ore is the mixture of one or more Iron Ore Powder, bag
Include following step:
(1) first, setting up the standard particle diameter of returning mine respectively according to technological requirement is 2.0mm, sets up fine ore standard grain
Footpath is 5.0mm,
Return mine into less than returning mine standard particle diameter and more than returning mine two of standard particle diameter according to standard particle diameter screening of returning mine
Point；
Become to be less than fine ore standard particle diameter according to fine ore standard particle diameter screening fine ore and be more than two of fine ore standard particle diameter
Point；
(2) by particle diameter less than the returning mine of standard particle diameter of returning mine, particle diameter less than the fine ore of fine ore standard particle diameter, with ferrum
Concentrate, iron content solid waste, solid fuel and flux carry out a strong stirring mixing and secondary cylinder mixing granulation,
Particle diameter the returning more than standard particle diameter of returning mine that screening obtains is added during carrying out secondary cylinder mixing granulation
Ore deposit；
(3) compound that secondary cylinder mixing granulation obtains is being transported to during blending bunker is used for cloth
It is uniformly added into the particle diameter that obtains of the screening fine ore more than fine ore standard particle diameter；
(4) segregation distribution mode is used to make compound produce rational particle segregation along pallet short transverse,
That is, big grade fine ore and compound is made to be positioned at chassis bottom as much as possible, to improve bed permeability, then
Sintering deposit is formed after igniting sintering；
The quality proportioning of described compound is: fine ore 30%-60%, iron ore concentrate 5%-35%, and return mine 15%-25%,
Iron content solid waste 0%-2%, solid fuel 3%-4%, flux 8%-12%；
The principle that adds water of described processes of mixing and granulating is: holding for the mixture moisture of cloth sintering is
6.8%-7.3% (quality), moisture does not only add particle diameter in a strong stirring mixing and secondary cylinder mixing granulation
Add more than before the returning mine of standard particle diameter of returning mine, account for a strong stirring mixing and secondary cylinder mixing granulation respectively
80-85% and 15-20% of total amount of water.
4. a kind of raising cemented iron concentrate consumption and life as described in any one claim in claim 13
The mineral aggregate using method of productivity, it is characterised in that described fine ore is the mixture of one or more Iron Ore Powder, flat
All granularity is more than 2mm, less than 5mm.
5. a kind of raising cemented iron concentrate consumption and life as described in any one claim in claim 13
The mineral aggregate using method of productivity, it is characterised in that the TFe content of described iron ore concentrate is more than 62 mass %, is less than
0.074mm grain size content is more than 60 mass %.
6. a kind of raising cemented iron concentrate consumption and life as described in any one claim in claim 13
The mineral aggregate using method of productivity, it is characterised in that described solid fuel is in coke powder, coal dust, biomass fuel
One or more mixture.
7. a kind of raising cemented iron concentrate consumption and life as described in any one claim in claim 13
The mineral aggregate using method of productivity, it is characterised in that a described strong stirring incorporation time is 1.0-2.0min,
The secondary cylinder mixing granulation time is 3.0-4.5min.
8. a kind of raising cemented iron concentrate consumption and life as described in any one claim in claim 13
The mineral aggregate using method of productivity, it is characterised in that described particle diameter is at secondary more than returning mine of standard particle diameter of returning mine
The cylinder mixing granulation time adds after only remaining 0.2-0.5min.
9. a kind of raising cemented iron concentrate consumption and life as described in any one claim in claim 13
The mineral aggregate using method of productivity, it is characterised in that described segregation distribution mode is magnetic roller+nine roller or magnetic roller+reflection
Board-like cloth.
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| CN105821205B (en) * | 2015-01-07 | 2017-11-28 | 宝山钢铁股份有限公司 | The processing equipment and its processing method of a kind of sinter mixture |
| CN105420491A (en) * | 2015-11-27 | 2016-03-23 | 攀钢集团攀枝花钢钒有限公司 | Iron ore sintering method |
| CN105483369A (en) * | 2016-01-29 | 2016-04-13 | 山东钢铁股份有限公司 | Mixture preparation method for improving sintering capacity |
| KR101779548B1 (en) * | 2016-08-01 | 2017-09-18 | 주식회사 포스코 | Process method of raw material |
| CN106282454B (en) * | 2016-11-16 | 2019-01-15 | 成都先进金属材料产业技术研究院有限公司 | Improve the method for iron quality |
| CN109423555B (en) * | 2017-08-23 | 2020-10-27 | 宝山钢铁股份有限公司 | Efficient iron ore sintering method using low-silicon iron fine powder |
| CN110004287B (en) * | 2018-01-04 | 2021-04-20 | 中冶长天国际工程有限责任公司 | Sintering method and sintering system of low-adhesion powdered iron material and using method of sintering system |
| CN108004392B (en) * | 2018-02-08 | 2024-02-23 | 山东钢铁股份有限公司 | Sintering equipment and process for reducing burning up of sintered solid |
| CN109576489A (en) * | 2018-12-03 | 2019-04-05 | 重庆臻焱节能环保科技有限公司 | Sinter return fine cyclic utilization system and application method |
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| CN110643809A (en) * | 2019-10-31 | 2020-01-03 | 中冶华天工程技术有限公司 | Sintering method and system with sintering return ores as embedded materials |
| CN111560516A (en) * | 2020-06-08 | 2020-08-21 | 南开大学 | Sintering mixture and mixing method, sintered ore and sintering method |
| CN114251948B (en) * | 2020-09-22 | 2023-07-25 | 中冶长天国际工程有限责任公司 | Sintered fuel segregation distributing device and method |
| CN113249568B (en) * | 2021-04-15 | 2022-10-21 | 首钢集团有限公司 | Sintering raw material and preparation method thereof |
| CN113789440A (en) * | 2021-09-28 | 2021-12-14 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation method of vanadium-titanium pellet ore |
| CN115261615B (en) * | 2022-07-30 | 2024-06-11 | 山东泰山钢铁集团有限公司 | Sintering batching method for return ore grading layering distribution |
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| JP3879408B2 (en) * | 2001-01-31 | 2007-02-14 | Ｊｆｅスチール株式会社 | Method for producing sintered ore and sintered ore |
| CN1207408C (en) * | 2001-06-15 | 2005-06-22 | 中南大学 | Process for preparing high iron low silicon agglomerate |
| JP4152286B2 (en) * | 2003-09-25 | 2008-09-17 | 新日本製鐵株式会社 | Granulation method for sintered raw materials for iron making |
| CN1844420A (en) * | 2006-03-14 | 2006-10-11 | 中南大学 | Method for producing sintered mineral with middle and low basicity |
| CN100569964C (en) * | 2007-11-28 | 2009-12-16 | 重庆钢铁(集团)有限责任公司 | The metallurgical waste high mixture ratio is used for the sintering process of agglomerate |
| CN101294243B (en) * | 2008-07-01 | 2011-02-09 | 攀钢集团研究院有限公司 | Pelletisation process for iron ore concentrate sintered mix |
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