CN100441662C - Coal blending and coking method for metallurgical coke - Google Patents
Coal blending and coking method for metallurgical coke Download PDFInfo
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- CN100441662C CN100441662C CNB2004100614620A CN200410061462A CN100441662C CN 100441662 C CN100441662 C CN 100441662C CN B2004100614620 A CNB2004100614620 A CN B2004100614620A CN 200410061462 A CN200410061462 A CN 200410061462A CN 100441662 C CN100441662 C CN 100441662C
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Abstract
The present invention relates to a method for coal blending and coking by using steam coal and weakly caking coal, particularly to a coal blending and coking method for metallurgical coke. The present invention has the technical scheme that in the method, a conventional coking technology method is adopted, raw materials for coking and coal blending comprises the following components: 0 to 15 wt% of weakly caking coal, 0 to 10 wt% of steam coal, 13 to 45 wt% of gas coal, 9 to 20 wt% of fat coal, and 40 to 45% of coking coal; coke produced by the present invention accords with the iron making requirements and the coke using requirements of a 1000M<3> and more than 1000M<3> blast furnace, wherein the drop strength M40 reaches 77 to 78.5%, the abrasive resistance M10 is less than 8.6%, the reactivity reaches 35 to 37%, the hot state strength reaches 45 to 55%, and the particle size has two levels, such as 25 to 40mm and 40 to 80mm. By using the present invention, the coal variety range of coking coal is enlarged. By using dead coal and faulty coal to replace partial coking coal, coal resources in China are fully and effectively used, and the coking cost is reduced. By industrial tests, the cost of the coal is reduced by about 30 yuan/ton by using stone-ladder steam coal to replace about 7% of coking coal.
Description
Technical field
The present invention relates to a kind of method of utilizing steam coal and weakly caking coal to carry out coal-blending coking, particularly the coal-blending coking method of metallurgical coke.
Background technology
Because high-quality caking coal is under-supply, therefore resource-constrained saves high-quality caking coal, enlarges the ratio of non-coking coal in coke making and coal blending, has become the important topic that needs to be resolved hurrily in the current coal-blending coking.There has been method in the prior art with weakly caking coal and Non-caking Coal in Coal Blends for Cokemaking, Chinese patent communique CN1140196A disclosed a kind of " producing the blending method of superior casting coke with weakly caking coal " for example, but the coal that this method is joined is more single, and the coke of producing is that foundry coke and non-blast furnace ironmaking are with burnt.Blast furnace ironmaking is with Jiao that metallurgical coke requires on physical and chemical index higher relatively.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of coal-blending coking method that adopts steam coal and weakly caking coal to carry out metallurgical coking at the deficiency of above-mentioned prior art existence.
The present invention for the technical scheme that problem adopted of the above-mentioned proposition of solution is: adopt conventional coking process method, its difference is that the material component of coke making and coal blending is by weight:
Weakly caking coal 0-15% does not comprise 0 steam coal 5-10% bottle coal 13-45% rich coal 9-20%
Coking coal 40-45%.
Press such scheme, described steam coal can be brown coal and/or long-flame coal.
Beneficial effect of the present invention is:
1, the quality of metallurgical coke has very significant effects to blast furnace ironmaking process, to the specification of quality of metallurgical coke mainly be that ash is low, sulfur-bearing is few, intensity is good, fugitive constituent is low, moisture stabilization and alkali resistance be good.Its dropping strength of the coke that the present invention produced M
40Reach 77-78.5%, abrasive wear resistance M
10＜8.6%, reactivity reaches 35～37%, hot strength 45～55%, and granularity is 25-40mm, 40-80mm secondary, meets 1000M
3And above blast furnace ironmaking needs with burnt.
2, use the steam coal coal-blending coking, broken traditional coal scope of using, enlarged the coal scope of coking coal, utilize non-coking coal and low grade coal to replace the part coking coal, fully effectively utilized the coal resources of China, reduced the coking cost, prove through commerical test, under Aug. 1st steel mill in Xinjiang has now with the coal condition, replace about 7% coking coal with stone ladder steam coal, use about 30 yuan/ton of coal cost declines.
Embodiment
Embodiments of the invention are as described below:
Adopt conventional coking process method, each coke making and coal blending raw material mixed fed to boiler, the material component of coke making and coal blending by weight, each embodiment is as shown in the table:
Weakly caking coal steam coal bottle coal rich coal coking coal M
40M
10
1) 15％ 0 30％ 10％ 45％ 78.1％ 8.1％
2) 14.3％ 10％ 23.7％ 9.5％ 42.5％ 78.7％ 7.9％
3) 0 5％ 40％ 10％ 45％ 78.1％ 7.9％
4) 0 5％ 45％ 10％ 40％ 78.1％ 7.9％
5) 14.3％ 10％ 13.7％ 19.5％ 42.5％ 78.4％ 8.6％
Requirement to each coal in the above-mentioned raw materials is:
In the table: Rmax is maximum average reflectance.
All coals: Sd (sulfur-bearing)＜1.0; Ad (ashes)＜14.0.
Claims (3)
1, a kind of coal-blending coking method of metallurgical coke adopts conventional coking process method, it is characterized in that the material component of coke making and coal blending is by weight:
Weakly caking coal 0-15% does not comprise 0 steam coal 5-10% bottle coal 13-45% rich coal 9-20% coking coal 40-45%,
Described steam coal is brown coal and/or long-flame coal.
2, by the coal-blending coking method of the described metallurgical coke of claim 1, it is characterized in that the material component of coke making and coal blending is by weight:
Weakly caking coal 14.3% steam coal 10% bottle coal 23.7% rich coal 9.5% coking coal 42.5%.
3, by the coal-blending coking method of the described metallurgical coke of claim 1, it is characterized in that the material component of coke making and coal blending is by weight:
Weakly caking coal 14.3 steam coals 10% bottle coal 13.7% rich coal 19.5% coking coal 42.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100614620A CN100441662C (en) | 2004-12-30 | 2004-12-30 | Coal blending and coking method for metallurgical coke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100614620A CN100441662C (en) | 2004-12-30 | 2004-12-30 | Coal blending and coking method for metallurgical coke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1648205A CN1648205A (en) | 2005-08-03 |
| CN100441662C true CN100441662C (en) | 2008-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100614620A Expired - Fee Related CN100441662C (en) | 2004-12-30 | 2004-12-30 | Coal blending and coking method for metallurgical coke |
Country Status (1)
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| CN (1) | CN100441662C (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393853C (en) * | 2006-01-25 | 2008-06-11 | 武汉重工铸锻有限责任公司 | Coal blending technology for producing industrial coal gas |
| RU2448146C2 (en) * | 2007-04-10 | 2012-04-20 | Ооо Оулиана Трейдинг | Mixture for producing blast-furnace coke |
| EP2103667A4 (en) * | 2007-04-10 | 2011-05-25 | Boris Musokhranov | Mixture of minerals and fluxes for obtaining metallurgical coke (variants) |
| CN101358135B (en) * | 2007-07-31 | 2012-01-11 | 上海梅山钢铁股份有限公司 | Coking coal blending method for producing high-heat strength coke |
| CN101870875B (en) * | 2009-04-22 | 2013-05-15 | 中国神华能源股份有限公司 | Method for producing metallurgical coke from 1/3 coking coal and non-coking coal |
| CN101624527B (en) * | 2009-08-04 | 2012-11-07 | 武汉钢铁(集团)公司 | Coal blending method of 7.63m coke oven during starting work |
| CN101649219B (en) * | 2009-09-11 | 2012-11-14 | 武汉钢铁(集团)公司 | Method for 1/3 coking coal to participate in coking and blending coal |
| CN102031172B (en) * | 2009-09-28 | 2013-06-26 | 上海梅山钢铁股份有限公司 | Low-cost high-strength coke and coke refining method thereof |
| CN102260510B (en) * | 2010-05-26 | 2013-07-17 | 上海梅山钢铁股份有限公司 | Coke by adding long flame coal and coking method |
| EA022518B1 (en) * | 2012-10-22 | 2016-01-29 | Открытое Акционерное Общество "Губахинский Кокс" | Method of coke producing for non-ferrous metals smelting |
| EA021524B1 (en) * | 2012-10-22 | 2015-07-30 | Открытое Акционерное Общество "Губахинский Кокс" | Charge mixture for producing coke |
| CN103224804A (en) * | 2013-05-08 | 2013-07-31 | 云南昆钢煤焦化有限公司 | Proportioned Australian weakly caking coal coking method |
| CN103224803A (en) * | 2013-05-08 | 2013-07-31 | 云南昆钢煤焦化有限公司 | Proportioned Australian coking coal coking method |
| CN103740391A (en) * | 2013-12-10 | 2014-04-23 | 宝钢集团新疆八一钢铁有限公司 | Method of coal blending for coking by steam coal pretreatment |
| CN109355080A (en) * | 2018-12-18 | 2019-02-19 | 山东铁雄新沙能源有限公司 | A kind of jet coal production coke and its production technology |
| CN109852411B (en) * | 2019-03-08 | 2021-01-26 | 首钢长治钢铁有限公司 | Coal blending for coke |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049372A (en) * | 1990-09-29 | 1991-02-20 | 北京市燃气煤化工研究所 | A kind of blending method of coking |
| CN1140196A (en) * | 1995-07-07 | 1997-01-15 | 翼城县城关镇焦化厂 | Method for dispensing coal in producing superior casting coke from weak bound coal |
| CN1513948A (en) * | 2003-08-12 | 2004-07-21 | 山西同嘉钢铁有限公司 | Furnace core and its production method |
-
2004
- 2004-12-30 CN CNB2004100614620A patent/CN100441662C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049372A (en) * | 1990-09-29 | 1991-02-20 | 北京市燃气煤化工研究所 | A kind of blending method of coking |
| CN1140196A (en) * | 1995-07-07 | 1997-01-15 | 翼城县城关镇焦化厂 | Method for dispensing coal in producing superior casting coke from weak bound coal |
| CN1513948A (en) * | 2003-08-12 | 2004-07-21 | 山西同嘉钢铁有限公司 | Furnace core and its production method |
Non-Patent Citations (1)
| Title |
|---|
| 应用不粘煤配煤炼焦. 崔洪江.燃料化工，第33卷第1期. 2002 * |
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| CN1648205A (en) | 2005-08-03 |
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