CN110229938A - A kind of sintering method under the conditions of special material - Google Patents
A kind of sintering method under the conditions of special material Download PDFInfo
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- CN110229938A CN110229938A CN201910602236.5A CN201910602236A CN110229938A CN 110229938 A CN110229938 A CN 110229938A CN 201910602236 A CN201910602236 A CN 201910602236A CN 110229938 A CN110229938 A CN 110229938A
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- conditions
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- sintering method
- special material
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/008—Composition or distribution of the charge
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses the sintering method under the conditions of a kind of special material, when sintered material, stablizes high magnesium ferric charge mass percent between 30%-40%；The present invention has the advantages that sintering large scale consumes high magnesium ferric charge, operation cost of enterprises is greatly reduced, creates enormous benefits for enterprise.
Description
Technical field
The present invention relates to a kind of sintering process, sintering method under the conditions of specifically a kind of special material belongs to burning
Tie technology field.
Background technique
Studied by blast furnace slag system, the rich ore powder resource shortage in boundary, based on fine powder resource under conditions of, raw material mix
Middle Al2O3Content is relatively low, Al in clinker2O3Content 12% or so, is probed into according to quaternary slag system diagram, is improved in clinker
Content of MgO, slag melting does not increase while slag fluidity improves, and smooth operation of furnace is good, while improving MgO in sinter and containing
Amount can improve the low-temperature reduction differentiation index of sinter, promote sinter quality, be based on this starting point, carry out high magnesium ferric charge
In the research that sintering large scale uses.Elder brother's jade steel purchases high MgO miberal powder from foreign countries, is processed as high magnesium essence by the ore dressing of oneself
Powder, compared with the superiority of effectiveness in boundary with other fine powders of quality with 150 yuan/ton, sintering large scale consumes high magnesium and contains high magnesium fine powder
Iron charge greatly reduces operation cost of enterprises, creates enormous benefits for enterprise.
Each large enterprises' sintering domestic at present is all the sintering by realizing with addition of dolomite dust, magnesite mountain flour, serpentine with magnesium
When flux consumption it is high, burn out rate is high, and grade is low, at high cost.
Summary of the invention
To solve the above-mentioned problems, the present invention devises the sintering method under the conditions of a kind of special material, is sintered large scale
High magnesium ferric charge is consumed, operation cost of enterprises is greatly reduced, creates enormous benefits for enterprise.
The technical solution of the present invention is as follows:
A kind of sintering method under the conditions of special material, when sintered material, stablize high magnesium ferric charge mass percent in 30%-40%
Between, guarantee the large scale consumption of high magnesium ferric charge.
Sintered material includes the component of following weight percent: Iron concentrate 19%-29%, high MgO Iron concentrate 30%-40%, height
Silicon coarse powder 13%, BF return fines powder 6%, recycle stock 8%, fuel and flux 14% in enterprise.
Recycle stock includes dedusting ash, iron scale, steel slag in the enterprise.
High magnesium ferric charge is the high magnesium fine powder that MgO miberal powder passes through ore dressing processing, and high magnesium fine powder has compared with the other fine powders of same quality
There is 150 yuan/ton of superiority of effectiveness, sintering large scale consumes high magnesium ferric charge, greatly reduces operation cost of enterprises, for enterprise
Industry creates enormous benefits.
Studied by blast furnace slag system, the rich ore powder resource shortage in boundary, based on fine powder resource under conditions of, raw material mix
Middle Al2O3Content is relatively low, Al in clinker2O3Content 12% or so, is probed into according to quaternary slag system diagram, is improved in clinker
Content of MgO, slag melting does not increase while slag fluidity improves, and smooth operation of furnace is good, while improving MgO in sinter and containing
Amount can improve the low-temperature reduction differentiation index of sinter, improve sinter quality.
The present invention has the advantages that sintering large scale consumes high magnesium ferric charge, operation cost of enterprises is greatly reduced, is
Enterprise creates enormous benefits.
The present invention is further explained in the light of specific embodiments.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
A kind of sintering method under the conditions of special material, sintered material structure are domestic Iron concentrate 19%-29%, high MgO Iron concentrate
30%-40%, high silicon coarse powder 13%, BF return fines powder 6%, recycle stock 8%(dedusting ash, iron scale, steel slag in enterprise), (fuel
+ flux) 14%, guarantee the large scale consumption of high magnesium ferric charge.
High magnesium ferric charge is the high magnesium fine powder that MgO miberal powder passes through ore dressing processing, and high magnesium fine powder has compared with the other fine powders of same quality
There is 150 yuan/ton of superiority of effectiveness, sintering large scale consumes high magnesium ferric charge, greatly reduces operation cost of enterprises, for enterprise
Industry creates enormous benefits.
Studied by blast furnace slag system, the rich ore powder resource shortage in boundary, based on fine powder resource under conditions of, raw material mix
Middle Al2O3Content is relatively low, Al in clinker2O3Content 12% or so, is probed into according to quaternary slag system diagram, is improved in clinker
Content of MgO, slag melting does not increase while slag fluidity improves, and smooth operation of furnace is good, while improving MgO in sinter and containing
Amount can improve the low-temperature reduction differentiation index of sinter, improve sinter quality.
Various equipment employed in the present invention, are conventional equipment used in the production technology of this field, and each equipment
Operation, parameter etc. carried out according to routine operation, have no special feature.
Claims (3)
1. the sintering method under the conditions of a kind of special material, it is characterised in that: stablize high magnesium ferric charge quality hundred when sintered material
Divide ratio between 30%-40%.
2. the sintering method under the conditions of a kind of special material according to claim 1, which is characterized in that the sintered material
Component including following weight percent: Iron concentrate 19%-29%, high MgO Iron concentrate 30%-40%, high silicon coarse powder 13%, blast furnace return
Recycle stock 8%, fuel and flux 14% in miberal powder 6%, enterprise.
3. the sintering method under the conditions of a kind of special material according to claim 2, it is characterised in that: followed in the enterprise
Ring material includes dedusting ash, iron scale, steel slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602236.5A CN110229938A (en) | 2019-07-05 | 2019-07-05 | A kind of sintering method under the conditions of special material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602236.5A CN110229938A (en) | 2019-07-05 | 2019-07-05 | A kind of sintering method under the conditions of special material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110229938A true CN110229938A (en) | 2019-09-13 |
Family
ID=67858103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910602236.5A Pending CN110229938A (en) | 2019-07-05 | 2019-07-05 | A kind of sintering method under the conditions of special material |
Country Status (1)
| Country | Link |
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| CN (1) | CN110229938A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519720A (en) * | 2009-04-17 | 2009-09-02 | 攀钢集团研究院有限公司 | Method for preparing high titania type high MgO sintering ore |
| WO2014129282A1 (en) * | 2013-02-20 | 2014-08-28 | 株式会社神戸製鋼所 | Method for manufacturing reduced iron |
| CN104120206A (en) * | 2014-07-23 | 2014-10-29 | 山东淄博傅山企业集团有限公司 | Sintering ore for protecting blast furnace |
| CN108121689A (en) * | 2018-01-10 | 2018-06-05 | 上海慧安科技股份有限公司 | A kind of Iron Ore Powder ironmaking cost measuring method |
-
2019
- 2019-07-05 CN CN201910602236.5A patent/CN110229938A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519720A (en) * | 2009-04-17 | 2009-09-02 | 攀钢集团研究院有限公司 | Method for preparing high titania type high MgO sintering ore |
| WO2014129282A1 (en) * | 2013-02-20 | 2014-08-28 | 株式会社神戸製鋼所 | Method for manufacturing reduced iron |
| CN104120206A (en) * | 2014-07-23 | 2014-10-29 | 山东淄博傅山企业集团有限公司 | Sintering ore for protecting blast furnace |
| CN108121689A (en) * | 2018-01-10 | 2018-06-05 | 上海慧安科技股份有限公司 | A kind of Iron Ore Powder ironmaking cost measuring method |
Non-Patent Citations (1)
| Title |
|---|
| 王广林等: "高精粉率低硅烧结技术下的高镁含铁料应用", 《新疆钢铁》 * |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190913 |