CN109852787A - The production technology of the sinter of small sintering ore amount can be reduced - Google Patents
The production technology of the sinter of small sintering ore amount can be reduced Download PDFInfo
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- CN109852787A CN109852787A CN201811477946.1A CN201811477946A CN109852787A CN 109852787 A CN109852787 A CN 109852787A CN 201811477946 A CN201811477946 A CN 201811477946A CN 109852787 A CN109852787 A CN 109852787A
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Abstract
The invention discloses the production technologies for the sinter that can reduce small sintering ore amount, broken → screening → transhipment that its processing step is as follows: ingredient → plus water mixing → cloth → logical blast furnace gas ignition → down draft sintering → air blast is cooling →, in (1) burden process: adding the magnetic iron ore that weight accounting is 4~6% in sintering deposit raw material；Content of MgO in sinter is controlled 2~2.6% by the additional amount of dolomite dust in control sintering deposit raw material；FeO Content in Sinter is controlled 8~9% by the additional amount of solid fuel in control sintering deposit raw material；(2) plus in water compounding process: mixture material temperature controlled at summer 60~75 DEG C, in winter control at 55~70 DEG C；(3) in cloth material process: sintering material layer thickness is controlled in 800~850mm；(4) sintering machine machine speed is no more than 1.9m/min.The production technology of the above-mentioned sinter that can reduce small sintering ore amount can improve the drum strength of sinter to 76.48%, so as to substantially reduce small sintering ore amount.
Description
Technical field
The present invention relates to blast furnace ironmaking raw material fields, and in particular to a kind of life for the sinter that can reduce small sintering ore amount
Production. art.
Background technique
Sinter is a kind of blast furnace ironmaking raw material, and small sintering ore is obtained after oversintering screening, blast furnace vibration sieve
The small sinter that cannot be used for blast furnace ironmaking, small sintering ore need to again return to sintering process processing, if sinter returns
Mine amount is big, it will directly influences the production cost and quality of sinter.The drum strength of sinter is characterization sinter physics
The index of Strength Mass, value is bigger to indicate anti-extrusion, impact resistance is stronger, under sieving≤quantity of return mines of 5mm grade gets over
It is few.The production technology of existing sinter does not focus on improving the drum strength of sinter, so that small sintering ore amount greatly increases.
Summary of the invention
The technical problems to be solved by the present invention are: a kind of production of sinter that can reduce small sintering ore amount will be provided
Technique.
To solve the above-mentioned problems, the technical scheme adopted by the invention is as follows: the sinter of small sintering ore amount can be reduced
Production technology, processing step is as follows: ingredient → plus water mixing → cloth → logical blast furnace gas ignition → down draft sintering → drum
Air cooling → broken → screening → transhipment, it is characterised in that:
(1) in burden process: adding the magnetic iron ore that weight accounting is 4~6% in sintering deposit raw material；By controlling sintering deposit raw material
The additional amount of middle dolomite dust makes in sinter the content of MgO control 2~2.6%；Pass through solid combustion in control sintering deposit raw material
The additional amount of material come make FeO Content in Sinter control 8~9%；
(2) plus in water compounding process: mixture material temperature controlled at summer 60~75 DEG C, in winter control 55~70
℃；
(3) in cloth material process: sintering material layer thickness is controlled in 800~850mm；
(4) sintering machine machine speed is no more than 1.9m/min.
Further, the production technology of the sinter above-mentioned that small sintering ore amount can be reduced, in which: dolomite dust is added
Measuring the weight accounting in sintering deposit raw material is 4.5~6.5%；Weight of the additional amount of fixed fuel in sintering deposit raw material accounts for
Than being 3.6~4.2%.
Further, the production technology of the sinter above-mentioned that small sintering ore amount can be reduced, in which: sinter transfer station
In for increasing the buffer platform that can carry out buffer deceleration to the sinter that falls in the funnel of transhipment.
Further, the production technology of the sinter above-mentioned that small sintering ore amount can be reduced, in which: in burden process:
The magnetic iron ore that weight accounting is 5% is added in sintering deposit raw material；Made by the additional amount of dolomite dust in control sintering deposit raw material
Content of MgO control is 2.3% in sinter；Make FeO in sinter by the additional amount of solid fuel in control sintering deposit raw material
Content is controlled 8.5%.
Further, the production technology of the sinter above-mentioned that small sintering ore amount can be reduced, in which: in cloth material process:
Sintering material layer thickness is controlled in 830mm.
Advantages of the present invention are as follows: the production technology of the sinter of the present invention that can reduce small sintering ore amount can will be burnt
The drum strength of knot mine is improved to 76.48%, so as to substantially reduce small sintering ore amount, in addition, adding in the funnel of transhipment
Buffer platform can also greatly reduce the amount of the small sintering ore generated because impact is excessive.
Specific embodiment
The present invention is described in further detail combined with specific embodiments below.
The production technology of the sinter of small sintering ore amount can be reduced, processing step is as follows: ingredient → plus water mixing →
Cloth → logical blast furnace gas ignition → down draft sintering → air blast is cooling → is crushed → screening → transhipment, it is characterised in that:
(1) in burden process: adding the magnetic iron ore that weight accounting is 5% in sintering deposit raw material；By white in control sintering deposit raw material
The additional amount of marble dust makes in sinter the content of MgO control 2.3%, weight of the dolomite dust additional amount in sintering deposit raw material
Measuring accounting is 4.5~6.5%；Make FeO Content in Sinter control by the additional amount of solid fuel in control sintering deposit raw material
8.5%, weight accounting of the additional amount of fixed fuel in sintering deposit raw material is 3.6~4.2%；Dolomite dust and fixed fuel
Additional amount needs determined according to the content of actually used material composition；Contain FeO in magnetic iron ore, can be discharged in sintering process
Heat helps to reduce being sintered to fix fuel, promotes drum strength；MgO fusing point is relatively high, with miberal powder assimilate generate liquid phase compared with
Difficulty, so if MgO with dosage it is excessively high if, the drum strength of sinter will reduce；FeO is not easy excessively in sinter,
Because causing sinter to be superfused when excessively high with carbon, sinter is caused to form macropore thin-walled or the low structure of degree of porosity, from
And reduce the drum strength of sinter；
(2) plus in water compounding process: mixture material temperature controlled at summer 60~75 DEG C, in winter control 55~70
℃；Mixture material temperature is improved, is to reduce the low temperature of bed of material middle and lower part " moisture condensation " phenomenon, condense destructible mixture bead,
So that gas permeability is deteriorated, influences sinter quality；
(3) in cloth material process: sintering material layer thickness is controlled in 830mm；The increase of thickness of feed layer is conducive to automatic inside the bed of material
Accumulation of heat, can be effectively reduced sintering solid fuel with addition of being conducive to high-strength complex so as to reduce the FeO content in sinter
Close the generation of calcium ferrite, the promotion of acceleration of sintering mine drum strength；
(4) sintering machine machine speed is no more than 1.9m/min, and sintering machine machine speed is too fast, will lead to sintering not exclusively, turns to can reduce
Drum intensity.
In the present embodiment, increase and the sinter fallen can be delayed in the funnel in sinter transfer station for transhipment
Eat up part of the buffer platform of speed.
Claims (5)
1. the production technology of the sinter of small sintering ore amount can be reduced, processing step is as follows: ingredient → plus water mixing → cloth
Material → logical blast furnace gas ignition → down draft sintering → air blast is cooling → is crushed → screening → transhipment, it is characterised in that:
(1) in burden process: adding the magnetic iron ore that weight accounting is 4~6% in sintering deposit raw material；By controlling sintering deposit raw material
The additional amount of middle dolomite dust makes in sinter the content of MgO control 2~2.6%；Pass through solid combustion in control sintering deposit raw material
The additional amount of material come make FeO Content in Sinter control 8~9%；
(2) plus in water compounding process: mixture material temperature controlled at summer 60~75 DEG C, in winter control 55~70
℃；
(3) in cloth material process: sintering material layer thickness is controlled in 800~850mm；
(4) sintering machine machine speed is no more than 1.9m/min.
2. the production technology of the sinter according to claim 1 that small sintering ore amount can be reduced, it is characterised in that: white clouds
Weight accounting of the mountain flour additional amount in sintering deposit raw material is 4.5~6.5%；The additional amount of fixed fuel is in sintering deposit raw material
Weight accounting be 3.6~4.2%.
3. the production technology of the sinter according to claim 1 or 2 that small sintering ore amount can be reduced, it is characterised in that:
For increasing the buffer platform that can carry out buffer deceleration to the sinter fallen in the funnel of transhipment in sinter transfer station.
4. the production technology of the sinter according to claim 1 or 2 that small sintering ore amount can be reduced, it is characterised in that:
In burden process: adding the magnetic iron ore that weight accounting is 5% in sintering deposit raw material；Pass through dolomite dust in control sintering deposit raw material
Additional amount control content of MgO 2.3%；By control sintering deposit raw material in solid fuel additional amount come
Make FeO Content in Sinter control 8.5%.
5. the production technology of the sinter according to claim 1 or 2 that small sintering ore amount can be reduced, it is characterised in that:
In cloth material process: sintering material layer thickness is controlled in 830mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172536A (en) * | 2019-06-10 | 2019-08-27 | 成渝钒钛科技有限公司 | Blast furnace raw material workshop reduces ratio method of returning mine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172786A (en) * | 2007-10-30 | 2008-05-07 | 海城市华林矿业集团有限公司 | Rich magnesium dust strengthen sintering additive agent |
| CN101381809A (en) * | 2008-11-07 | 2009-03-11 | 攀枝花新钢钒股份有限公司 | Method for preparing sintering ore of vanadium-titanium magnetite ore |
| CN102127636A (en) * | 2010-12-30 | 2011-07-20 | 首钢总公司 | Method for preparing low-SiO2 high-performance sinter ore |
| CN103710531A (en) * | 2013-12-20 | 2014-04-09 | 攀钢集团成都钢钒有限公司 | Method for improving temperature of vanadium-titanium sintering mixture |
| CN104263911A (en) * | 2014-09-28 | 2015-01-07 | 四川德胜集团钒钛有限公司 | Preparation method of vanadium titano-magnetite sinter |
| CN104988258A (en) * | 2015-07-14 | 2015-10-21 | 江苏永钢集团有限公司 | Mixed sintering ore |
-
2018
- 2018-12-05 CN CN201811477946.1A patent/CN109852787A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172786A (en) * | 2007-10-30 | 2008-05-07 | 海城市华林矿业集团有限公司 | Rich magnesium dust strengthen sintering additive agent |
| CN101381809A (en) * | 2008-11-07 | 2009-03-11 | 攀枝花新钢钒股份有限公司 | Method for preparing sintering ore of vanadium-titanium magnetite ore |
| CN102127636A (en) * | 2010-12-30 | 2011-07-20 | 首钢总公司 | Method for preparing low-SiO2 high-performance sinter ore |
| CN103710531A (en) * | 2013-12-20 | 2014-04-09 | 攀钢集团成都钢钒有限公司 | Method for improving temperature of vanadium-titanium sintering mixture |
| CN104263911A (en) * | 2014-09-28 | 2015-01-07 | 四川德胜集团钒钛有限公司 | Preparation method of vanadium titano-magnetite sinter |
| CN104988258A (en) * | 2015-07-14 | 2015-10-21 | 江苏永钢集团有限公司 | Mixed sintering ore |
Non-Patent Citations (2)
| Title |
|---|
| 吕晓芳 等: "《烧结矿与球团矿生产实训》", 31 May 2011, 冶金工业出版社 * |
| 夏玉红 等: "《烧结球团机械设备》", 30 September 2006, 中国工人出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172536A (en) * | 2019-06-10 | 2019-08-27 | 成渝钒钛科技有限公司 | Blast furnace raw material workshop reduces ratio method of returning mine |
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Application publication date: 20190607 |