CN101735840A - Method for coking and mixing coal by participation of coking coal - Google Patents
Method for coking and mixing coal by participation of coking coal Download PDFInfo
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- CN101735840A CN101735840A CN200910273214A CN200910273214A CN101735840A CN 101735840 A CN101735840 A CN 101735840A CN 200910273214 A CN200910273214 A CN 200910273214A CN 200910273214 A CN200910273214 A CN 200910273214A CN 101735840 A CN101735840 A CN 101735840A
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Abstract
The invention relates to a method for coking and mixing coal by the participation of coking coal. The method comprises the following steps: (1) detecting the coking coal: a detection result at least comprises maximal fluidity; (2) sorting the coking coal according to the maximal fluidity detected in the step (1); and (3) mixing the coal. According to related indexes of the coking coal, the method reasonably divides the coking coal so as to reasonably utilize coking coal resource, and can reduce the cost for mixing the coal under the condition of not influencing the quality of the coking coal.
Description
Technical field
The present invention relates to the coking technology field, be specifically related to the method for the method of coke making and coal blending, particularly coking and mixing coal by participation of coking coal.
Background technology
China's coal resource is abundant, but coking coal resource is in short supply, and skewness weighs in limited coking coal resource.In the coal reserves of having verified, the coking coal reserves only account for 26% of coal total reserves, and coking coal only accounts for 17.57% of coking coal reserves, and rich coal accounts for 10%.And in coal-blending coking, burnt rich coal generally should account for 50%～60%, and contradiction is serious between the demand of coking coal resource and coke making and coal blending.Therefore, how to make good use of the problem that limited coking coal resource has become the coking worker to face.At present, China mainly depends on the vitrinite reflectance and the distribution thereof of traditional coal index and coal petrography index and the lazy ratio of living to the use of coking coal, all there is certain defective in the combined index of these two kinds of indexs and these two kinds of indexs, can not accomplish reasonable use to coking coal, can't reach the stable purpose that improves coke quality and reduce coal blending cost.
Summary of the invention
Technical problem to be solved by this invention is: a kind of method of coking and mixing coal by participation of coking coal is provided, and this method can reach the reasonable use to coking coal resource, under the situation that does not influence coke quality, can reduce coal blending cost.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of method of coking and mixing coal by participation of coking coal, it may further comprise the steps:
Step (1), to the step that coking coal detects, detected result comprises maximum fluidity at least;
The step that step (2), the maximum fluidity that detects according to step (1) are classified to coking coal is specially:
Maximum fluidity is categorized as first kind coking coal more than or equal to the coking coal of 1000ddpm;
Maximum fluidity is categorized as the second class coking coal less than 1000ddpm and more than or equal to the coking coal of 300ddpm;
Maximum fluidity is categorized as the 3rd class coking coal less than 300ddpm and more than or equal to the coking coal of 100ddpm;
Maximum fluidity is categorized as the 4th class coking coal less than the coking coal of 100ddpm;
The step of step (3), coal blending, in the coal blending scheme:
The weight percent proportioning of first kind coking coal is 40～60%;
Or
The weight percent proportioning of the second class coking coal is 25～45%;
Or
The weight percent proportioning of the 3rd class coking coal is 10～25%;
Or
The weight percent proportioning 0～10% of the 4th class coking coal.
The inventive method is rationally divided coking coal according to the index of correlation of coking coal again, to reach the reasonable use to coking coal resource, under the situation that does not influence coke quality, can reduce coal blending cost.
Embodiment
Below in conjunction with the embodiment of the invention to being described in further detail:
The method embodiment of a kind of coking and mixing coal by participation of coking coal of the present invention, it may further comprise the steps:
Step (1), the step that coking coal is detected detect and comprise the mensuration of caking index G value and the mensuration of rheological index; Detected result comprises caking index G value, softening temperature, solidification value, solid-the softening temperature interval, maximum fluidity etc.
The measuring method of caking index G value is according to GB GBT5447-1997, and the measuring method of rheological index is according to U.S. ASTM-D182 standard.Detected result sees Table 1.
Table 1:
| The coking coal coal | Softening temperature/℃ | Gu-softening temperature interval/℃ | Maximum fluidity/DDPM | The G value | Classification |
| ??A | ??407 | ??84 | ??142 | ??75 | The 3rd class |
| ??B | ??397 | ??99 | ??1458 | ??90 | The first kind |
| ??C | ??403 | ??87 | ??774 | ??81 | Second class |
| ??D | ??431 | ??45 | ??6 | ??70 | The 4th class |
| ??E | ??401 | ??93 | ??1278 | ??87 | The first kind |
| ??F | ??425 | ??66 | ??15 | ??73 | The 4th class |
| ??G | ??425 | ??57 | ??55 | ??73 | The 4th class |
| ??H | ??403 | ??99 | ??2520 | ??88 | The first kind |
| ??I | ??424 | ??63 | ??80 | ??75 | The 4th class |
| ??J | ??412 | ??81 | ??990 | ??83 | Second class |
| ??K | ??401 | ??96 | ??1944 | ??96 | The first kind |
| ??L | ??408 | ??84 | ??1104 | ??87 | The first kind |
Step (2), according to the step that the detected result of step (1) is classified to coking coal, be specially:
Maximum fluidity is categorized as first kind coking coal more than or equal to the coking coal of 1000ddpm;
Maximum fluidity is categorized as the second class coking coal less than 1000ddpm and more than or equal to the coking coal of 300ddpm;
Maximum fluidity is categorized as the 3rd class coking coal less than 300ddpm and more than or equal to the coking coal of 100ddpm;
Maximum fluidity is categorized as the 4th class coking coal less than the coking coal of 100ddpm;
Sorting result sees Table 1.
The step of step (3), coal blending, in the coal blending scheme:
The weight percent proportioning of first kind coking coal is 40～60%;
Or
The weight percent proportioning of the second class coking coal is 25%～45%;
Or
The weight percent proportioning of the 3rd class coking coal is 10%～25%;
Or
Weight percent proportioning≤10% of the 4th class coking coal.
Concrete coal blending scheme:
No. 1 coal blending scheme: each single weight percent proportioning of planting coal is: gas-fat coal: 5%; Rich coal: 10%; 1/3 coking coal: 27%; First kind coking coal: 45%; Lean coal: 13%.Each single coking coal of planting is state's producing coal, and first kind coking coal is any one first kind coking coal in the table 1.
No. 2 coal blending schemes: each single weight percent proportioning of planting coal is: gas-fat coal: 5%; Rich coal: 10%; 1/3 coking coal: 37%; The second class coking coal: 35%; Lean coal: 13%.Each single coking coal of planting is state's producing coal, and the second class coking coal is any one the second class coking coal in the table 1.
No. 3 coal blending schemes: each single weight percent proportioning of planting coal is: gas-fat coal: 5%; Rich coal: 10%; 1/3 coking coal: 57%; The 3rd class coking coal: 15%; Lean coal: 13%.Each single coking coal of planting is state's producing coal, and the 3rd class coking coal is any one the 3rd class coking coal in the table 1.
No. 4 coal blending schemes: each single weight percent proportioning of planting coal is: gas-fat coal: 5%; Rich coal: 10%; 1/3 coking coal: 67%; The 4th class coking coal: 5%; Lean coal: 13%.Each single coking coal of planting is state's producing coal, and the 4th class coking coal is any one the 4th class coking coal in the table 1.
No. 5 coal blending schemes: each single weight percent proportioning of planting coal is: gas-fat coal: 5%; Rich coal: 10%; 1/3 coking coal: 27%; First kind coking coal: 40%; The 4th class coking coal: 5%; Lean coal: 13%.Each single coking coal of planting is state's producing coal, and first, fourth class coking coal is any one the first, fourth class coking coal in the table 1.
The coking of 1-5 coal blending scheme gets the technical parameter such as the table 2 of coke:
Table 2:
| Scheme | ????CRI/％ | ????CSR/％ |
| No. 1 coal blending scheme | ????19.4 | ????70.2 |
| No. 2 coal blending schemes | ????21.3 | ????65.7 |
| No. 3 coal blending schemes | ????23.8 | ????62.9 |
| No. 4 coal blending schemes | ????27.6 | ????58.5 |
| No. 5 coal blending schemes | ????22.8 | ????64.3 |
Technical parameter in the table 2 all meets the coke quality requirement.
Claims (1)
1. the method for a coking and mixing coal by participation of coking coal, it is characterized in that: it may further comprise the steps:
Step (1), to the step that coking coal detects, detected result comprises maximum fluidity at least;
The step that step (2), the maximum fluidity that detects according to step (1) are classified to coking coal is specially:
Maximum fluidity is categorized as first kind coking coal more than or equal to the coking coal of 1000ddpm;
Maximum fluidity is categorized as the second class coking coal less than 1000ddpm and more than or equal to the coking coal of 300ddpm;
Maximum fluidity is categorized as the 3rd class coking coal less than 300ddpm and more than or equal to the coking coal of 100ddpm;
Maximum fluidity is categorized as the 4th class coking coal less than the coking coal of 100ddpm;
The step of step (3), coal blending, in the coal blending scheme:
The weight percent proportioning of first kind coking coal is 40～60%;
Or
The weight percent proportioning of the second class coking coal is 25～45%;
Or
The weight percent proportioning of the 3rd class coking coal is 10～25%;
Or
The weight percent proportioning 0～10% of the 4th class coking coal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910273214A CN101735840A (en) | 2009-12-15 | 2009-12-15 | Method for coking and mixing coal by participation of coking coal |
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| CN200910273214A CN101735840A (en) | 2009-12-15 | 2009-12-15 | Method for coking and mixing coal by participation of coking coal |
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| CN101735840A true CN101735840A (en) | 2010-06-16 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010737A (en) * | 2010-12-22 | 2011-04-13 | 武汉钢铁(集团)公司 | Method of coal blending for coking with participation of 1/3 coking coal |
| CN102492448A (en) * | 2011-12-12 | 2012-06-13 | 武汉钢铁(集团)公司 | Coal blending coking method capable of controlling quality of coking coal |
| CN102676191A (en) * | 2012-05-23 | 2012-09-19 | 武汉钢铁(集团)公司 | Method for sorting coking coal with 32-37% volatile component and coking blending method |
| CN102690669A (en) * | 2012-05-23 | 2012-09-26 | 武汉钢铁(集团)公司 | Coking coal quality classification method and coal blending and coking method with participation of coking coal |
| CN102807883A (en) * | 2012-08-31 | 2012-12-05 | 武汉钢铁(集团)公司 | Gas-fat-doped coking and coal blending method |
| CN102888236A (en) * | 2012-10-15 | 2013-01-23 | 武汉钢铁(集团)公司 | Method for regulating rheological property of blend coal |
| CN111621314A (en) * | 2020-06-11 | 2020-09-04 | 河北中煤旭阳能源有限公司 | Tamping coal blending coking method |
| CN115074147A (en) * | 2022-05-30 | 2022-09-20 | 鞍钢股份有限公司 | Method for improving wear resistance of coke produced by top-loading coke oven |
-
2009
- 2009-12-15 CN CN200910273214A patent/CN101735840A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010737A (en) * | 2010-12-22 | 2011-04-13 | 武汉钢铁(集团)公司 | Method of coal blending for coking with participation of 1/3 coking coal |
| CN102492448A (en) * | 2011-12-12 | 2012-06-13 | 武汉钢铁(集团)公司 | Coal blending coking method capable of controlling quality of coking coal |
| CN102676191A (en) * | 2012-05-23 | 2012-09-19 | 武汉钢铁(集团)公司 | Method for sorting coking coal with 32-37% volatile component and coking blending method |
| CN102690669A (en) * | 2012-05-23 | 2012-09-26 | 武汉钢铁(集团)公司 | Coking coal quality classification method and coal blending and coking method with participation of coking coal |
| CN102807883A (en) * | 2012-08-31 | 2012-12-05 | 武汉钢铁(集团)公司 | Gas-fat-doped coking and coal blending method |
| CN102807883B (en) * | 2012-08-31 | 2014-01-22 | 武汉钢铁(集团)公司 | Gas-fat-doped coking and coal blending method |
| CN102888236A (en) * | 2012-10-15 | 2013-01-23 | 武汉钢铁(集团)公司 | Method for regulating rheological property of blend coal |
| CN102888236B (en) * | 2012-10-15 | 2014-03-12 | 武汉钢铁(集团)公司 | Method for regulating rheological property of blend coal |
| CN111621314A (en) * | 2020-06-11 | 2020-09-04 | 河北中煤旭阳能源有限公司 | Tamping coal blending coking method |
| CN111621314B (en) * | 2020-06-11 | 2021-11-02 | 河北中煤旭阳能源有限公司 | Tamping coal blending coking method |
| CN115074147A (en) * | 2022-05-30 | 2022-09-20 | 鞍钢股份有限公司 | Method for improving wear resistance of coke produced by top-loading coke oven |
| CN115074147B (en) * | 2022-05-30 | 2023-12-15 | 鞍钢股份有限公司 | Method for improving wear resistance of coke produced by top-loading coke oven |
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Application publication date: 20100616 |