CN102839004A - Coking coal blending method - Google Patents
Coking coal blending method Download PDFInfo
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- CN102839004A CN102839004A CN2012103456905A CN201210345690A CN102839004A CN 102839004 A CN102839004 A CN 102839004A CN 2012103456905 A CN2012103456905 A CN 2012103456905A CN 201210345690 A CN201210345690 A CN 201210345690A CN 102839004 A CN102839004 A CN 102839004A
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Abstract
The invention belongs to the technical field of coking coal blending, and particularly relates to a coking coal blending method, which is mixed by the following coal types in percentage by weight: 20-30 percent of 1/3 coking coal, 5-10 percent of air fertilizer coal, 20-30 percent of fat coal, 30-35 percent of coking coal, and 7-12 percent of lean coal, wherein the sum of the weight percentage of the coal types is 100 percent. According to the method, the coking coal especially the fat coal is expanded, the low-price high-volatile matter air fertilizer coal which cannot be used for coking generally can partly replace the fat coal so as to be used, the coke quality is ensured through reasonable blending simultaneously, the coal blending cost is reduced, and obvious economical benefit is created.
Description
Technical field
The invention belongs to coking coal adapted technical field, a kind of specifically coking coal blending method.
Background technology
Coking coke oven need use coking coal to carry out coking; Coking coal is made up of bottle coal, 1/3 coking coal, rich coal, coking coal, lean coal etc. usually; In the coal-blending coking process; According to indexs such as the quality of various coking coals, composition, character, rationally carry out hybrid combination and pulverize, to reach the optimization of coke quality and cost.
The coking coal usage quantity is bigger, like three six meters coke ovens, and about 2,500,000 tons of year use coking coal, wherein rich coal is about 700,000 tons, because rich coal is on the high side, causes coal blending cost high.The part gas-fat coal occurred on the coking coal market in recent years, on the low side, the cohesiveness achievement data is also relatively good, but finds that through experiment its actual coking behavior is relatively poor, and the STRENGTH ON COKE quality has very big negative impact, therefore actual the use seldom.
Summary of the invention
Technical problem to be solved by this invention is the shortcoming that exists to above prior art, proposes a kind of coking coal blending method, rationally uses gas-fat coal, reduces coal blending cost when ensureing coke quality.
The technical scheme that the present invention solves above technical problem is:
A kind of coking coal blending method, mix by the coal of following weight percent: 1/3 coking coal: 20-30%, gas-fat coal: 5-10%, rich coal: 20-30%, coking coal: 30-35%, lean coal: 7-12%, more than the weight percent sum of each coal be 100%.
In the coal-blending coking process, after need mixing according to a certain percentage the coking coal of different varieties usually, drop into together and carry out coking in the coke oven, can obtain quality coke preferably.The present invention is through to the detailed analysis of a kind of gas-fat coal each item quality, character, composition, and then carries out the research of suitability, accurately holds its effect in coal-blending coking, suitable adapted ratio more than having confirmed.
The technical scheme that the present invention further limits is:
Aforesaid coking coal blending method mixes by the coal of following weight percent: 1/3 coking coal-official's bridge: 12-18%, 1/3 coking coal-three river point: 8-12%; Gas-fat coal-U.S.: 5-10%, rich coal-Xu Ding: 12-17%, rich coal-Xin giant dragon: 8-12%; Coking coal-blue or green raised path between farm fields: 18-22%, coking coal-convert and press down 2.3:5-9%, coking coal-Russian K10 coal: 5-7%; Lean coal-tafelberg: 8-12%, more than the weight percent sum of each coal be 100%.
Aforesaid coking coal blending method, mix by the coal of following weight percent:
More than 1/3 coking coal-official's bridge, 1/3 coking coal-three river point, gas-fat coal-U.S., rich coal-Xu Ding, rich coal-Xin giant dragon, coking coal-blue or green raised path between farm fields, coking coal-convert the town, coking coal-Russian K10 coal, lean coal-tafelberg all is the coal resource title, the common name of this area.
The invention has the beneficial effects as follows: the present invention has expanded particularly rich coal resource of coking coal; Make low price, the high-volatile gas-fat coal that can not be used for coking usually can partly replace rich coal to use; Through having ensured coke quality, reduce coal blending cost simultaneously, make coke quality steady at M40 85.59 with reasonable adapted; The higher level of M10 6.42 has been created remarkable economic efficiency.
With 174.06 yuan/ton of U.S.'s gas-fat coal and three rivers point coal price differences, U.S.'s gas-fat coal with permitted 383.58 yuan of/ton meters of raised path between farm fields coal price difference, year use 70,000 tons of U.S.'s gas-fat coals, bring benefits: ten thousand yuan of 4*176.06+3*383.58=1854
Simultaneously this kind blending method is the adapted of U.S.'s gas-fat coal and the high Volatile Gas rich coal similar with it, and a kind of new thinking is provided, and coking industry has good popularization value at home.
Embodiment
Embodiment 1
The coking coal blending method of present embodiment, mix by the coal of following weight percent:
Embodiment 2
The coking coal blending method of present embodiment, mix by the coal of following weight percent:
Embodiment 3
The coking coal blending method of present embodiment, mix by the coal of following weight percent:
Except that the foregoing description, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (3)
1. coking coal blending method, it is characterized in that: the coal by following weight percent is mixed: 1/3 coking coal: 20-30%, gas-fat coal: 5-10%; Rich coal: 20-30%; Coking coal: 30-35%, lean coal: 7-12%, more than the weight percent sum of each coal be 100%.
2. coking coal blending method as claimed in claim 1 is characterized in that: the coal by following weight percent is mixed: 1/3 coking coal-official's bridge: 12-18%, 1/3 coking coal-three river point: 8-12%; Gas-fat coal-U.S.: 5-10%, rich coal-Xu Ding: 12-17%, rich coal-Xin giant dragon: 8-12%; Coking coal-blue or green raised path between farm fields: 18-22%, coking coal-convert and press down 2.3:5-9%, coking coal-Russian K10 coal: 5-7%; Lean coal-tafelberg: 8-12%, more than the weight percent sum of each coal be 100%.
3. coking coal blending method as claimed in claim 2 is characterized in that: the coal by following weight percent is mixed:
。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012103456905A CN102839004A (en) | 2012-09-18 | 2012-09-18 | Coking coal blending method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103456905A CN102839004A (en) | 2012-09-18 | 2012-09-18 | Coking coal blending method |
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| CN102839004A true CN102839004A (en) | 2012-12-26 |
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| CN2012103456905A Pending CN102839004A (en) | 2012-09-18 | 2012-09-18 | Coking coal blending method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255247A (en) * | 2013-05-22 | 2013-08-21 | 南京钢铁股份有限公司 | Coal blending method for blast furnace coal injection |
| CN103865554A (en) * | 2014-02-26 | 2014-06-18 | 南京钢铁股份有限公司 | Coal blending method for smelting coking coal by using high-volatile component on large scale |
| CN104804755A (en) * | 2015-05-14 | 2015-07-29 | 武汉钢铁(集团)公司 | Coal blending method for coking 1/3 coking coal having solid softening temperature interval below 85 DEG C |
| CN105255509A (en) * | 2015-11-10 | 2016-01-20 | 湖南华菱湘潭钢铁有限公司 | Coking coal blending method |
| CN108931549A (en) * | 2017-05-24 | 2018-12-04 | 宝山钢铁股份有限公司 | A kind of coking coal coking behavior method of determination and evaluation |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255247A (en) * | 2013-05-22 | 2013-08-21 | 南京钢铁股份有限公司 | Coal blending method for blast furnace coal injection |
| CN103255247B (en) * | 2013-05-22 | 2015-08-26 | 南京钢铁股份有限公司 | A kind of blast furnace injection coal blending method |
| CN103865554A (en) * | 2014-02-26 | 2014-06-18 | 南京钢铁股份有限公司 | Coal blending method for smelting coking coal by using high-volatile component on large scale |
| CN103865554B (en) * | 2014-02-26 | 2016-08-24 | 南京钢铁股份有限公司 | A kind of vast scale uses the blending method of high volatile coking coal |
| CN104804755A (en) * | 2015-05-14 | 2015-07-29 | 武汉钢铁(集团)公司 | Coal blending method for coking 1/3 coking coal having solid softening temperature interval below 85 DEG C |
| CN104804755B (en) * | 2015-05-14 | 2017-01-25 | 武汉钢铁(集团)公司 | Coal blending method for coking 1/3 coking coal having solid softening temperature interval below 85 DEG C |
| CN105255509A (en) * | 2015-11-10 | 2016-01-20 | 湖南华菱湘潭钢铁有限公司 | Coking coal blending method |
| CN105255509B (en) * | 2015-11-10 | 2018-04-27 | 湖南华菱湘潭钢铁有限公司 | A kind of coke making and coal blending method |
| CN108931549A (en) * | 2017-05-24 | 2018-12-04 | 宝山钢铁股份有限公司 | A kind of coking coal coking behavior method of determination and evaluation |
| CN108931549B (en) * | 2017-05-24 | 2020-07-28 | 宝山钢铁股份有限公司 | Coking coal coking performance detection method |
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Application publication date: 20121226 |