CN1077912C - Shaped coke produced win non-adhesive coal and its prodn. method - Google Patents
Shaped coke produced win non-adhesive coal and its prodn. method Download PDFInfo
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- CN1077912C CN1077912C CN99125126A CN99125126A CN1077912C CN 1077912 C CN1077912 C CN 1077912C CN 99125126 A CN99125126 A CN 99125126A CN 99125126 A CN99125126 A CN 99125126A CN 1077912 C CN1077912 C CN 1077912C
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- coking
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Abstract
The present invention relates to formed coke prepared by using non-caking coal as the raw material and a preparation method thereof. Non-caking coal (jet coal and weakly caking coal) with low ash content and low sulfur content is used as the raw material; the raw material is firstly prepared into semi-coke by dry distillation; the semi-coke and coke are respectively pulverized; coal tar is added to the powder of the semi-coke and the coke to be uniformly stirred; the mixture is formed by pressure at normal temperature and is prepared into the formed coke by high temperature carbonization. The present invention opens up a novel path for using non-caking coal to make coke, solves the problem of the contradiction between low coke coal supply and high coke demand, effectively improves coke quality and lowers coke cost. The quality of the formed coke prepared by the preparation method can reach the quality standard of superfine foundry coke.
Description
The present invention relates to a kind of formed coke and manufacture method thereof, especially a kind of formed coke and manufacture method thereof of producing with non-caking coal (or long-flame coal, weakly caking coal).
The burnt industry of at present domestic system all is to add coal blending with coking coal to carry out coking basically, and its weak point is that the coking coal reserves are few, price is high.And detrimental impurity such as contained ash, sulfur are more, are difficult for washing, and coking is of poor quality, are difficult to reach superfine burnt specification of quality.
Purpose of the present invention overcomes above-mentioned the deficiencies in the prior art part exactly, and a kind of formed coke and manufacture method thereof of utilizing non-caking coal or weakly caking coal, long-flame coal to produce is provided.
The object of the present invention is achieved like this: this formed coke be by non-caking coal (or long-flame coal, weakly caking coal) through the semicoke that destructive distillation is made, be equipped with a small amount of coking coal and coal tar and form.
Manufacture method of the present invention is: earlier non-caking coal (long-flame coal, weakly caking coal) destructive distillation is become semicoke, again with semicoke and coking coal fragmentation, add coal tar and mix thoroughly, the moulding of normal temperature overdraft makes formed coke through high temperature carbonization again.
The raw materials used proportioning by weight percentage of product formed coke of the present invention is:
Semicoke (fugitive constituent＜15%) 56-65%
Coking coal 18-25%
Middle coal-tar heavy oil 15-20%
Each component weight sum is 100%
The concrete manufacture method of product of the present invention is:
1, select for use non-caking coal (or long-flame coal, weakly caking coal) to be raw material, the granularity＜100mm of coal.
2, make semicoke through low-temperature pyrolysis, the fugitive constituent of semicoke＜15%.
3, semicoke and coking coal are crushed to granularity≤1mm respectively.
4, semicoke, coking coal and coal tar are mixed in proportion, fully mix thoroughly.
5, burnt embryo is made in normal temperature pressurization 60Mpa moulding down.
6, burnt embryo is put into charring furnace, make formed coke through 900 ℃ of-1000 ℃ of high temperature carbonizations.
7, breath is burnt.
The present invention has opened up the new way with non-coking coal coking, alleviated the contradiction of coking coal shortage, utilized non-caking coal to hang down ash, doctor negative advantage, improved the coking quality, reduced cost, the more important thing is that non-coking coal is used for coking, the byproduct coal gas that reclaims in process of coking, coal tar wet goods can be for processing once again, but disposable fuel is converted into the raw material of gradient development, benefits the nation, favorable to the people, have good economic benefit and social benefit.
Be an embodiment below:
Application the present invention makes the selected raw material of superfine casting formed coke and is:
1, refreshing Fu Dong wins the non-caking coal (fugitive constituent 37.4%, ash 4.8%, sulfur 0.42%) in coalfield
2, coking coal (fugitive constituent 30.1%, ash 5.2%, caking index 84) is produced from stone in Shanxi
3, middle coal-tar heavy oil (ash 0.13%, moisture content 3.6%)
Its manufacture method is " two-stage method " technology, is exactly earlier above-mentioned non-caking coal to be carried out low-temperature pyrolysis particularly, and the semicoke that makes with destructive distillation is " two-stage method " of raw material production formed coke again.
Manufacture method is:
1, low-temperature pyrolysis: above-mentioned non-caking coal is put into 75 types improvement coke oven do low-temperature pyrolysis, pyrolysis temperature 500-550 ℃, 8 hours destructive distillation time, the semicoke fugitive constituent 10% that makes;
2, fragmentation: with semicoke and coking coal separated pulverizing, grinding particle size≤1mm;
3, by the weight ratio of semicoke 65%, coking coal 20%, coal tar 15% semicoke, coking coal and coal tar are fully mixed thoroughly;
4,60Mpa pressure forming under the normal temperature, compact dimensions are the biconvex garden cake type of 102mm * 56mm;
5, the burnt embryo after the moulding is put into 75 Formed Coke Furnace and do high temperature carbonization, carbonization temperature 950-1000 ℃, carbonization time is 16 hours;
6, the burnt spraying process that adopts of breath.
Press the formed coke product of the foregoing description production and press the GB2001-91 standard test through Shanxi Province bureau of import ﹠ export commodities inspection:
Ash 6.52%, fugitive constituent 1.31%, fixed carbon 92.71%, sulfur 0.48%, phosphorus part 0.006%, thermal value 7472 kilocalories reach superfine foundry coke quality standard.
Replace above-mentioned non-caking coal with long-flame coal or weakly caking coal, replace above-mentioned coking coal with rich coal, adopt proportioning of the present invention and the burnt method of system equally also can produce qualified formed coke product, the inner quality of formed coke product depends on the inner quality of choosing feed coal.
Claims (2)
1, a kind of formed coke of producing with non-caking coal, it is characterized in that: semicoke and coking coal, coal tar that it is made through low-temperature pyrolysis by non-caking coal are formed: its proportioning by weight percentage is:
Semicoke (fugitive constituent＜15%) 56-65%
Coking coal 18-25%
Middle coal-tar heavy oil 15-20%
Each component weight sum is 100%.
2, the method for the described formed coke of a kind of production claim 1, it is characterized in that: it comprises the following steps:
(1), select for use non-caking coal (or long-flame coal, weakly caking coal) to be raw material, the granularity＜100mm of coal;
(2), make semicoke through low-temperature pyrolysis, the fugitive constituent of semicoke＜15%;
(3), semicoke and coking coal are crushed to granularity≤1mm respectively;
(4), semicoke, coking coal and coal tar are mixed according to the above ratio, fully mix thoroughly;
(5), down pressurization 60Mpa moulding of normal temperature, make burnt embryo;
(6), burnt embryo is put into charring furnace, make formed coke through 900 ℃ of-1000 ℃ of high temperature carbonizations;
(7), quenching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99125126A CN1077912C (en) | 1999-11-26 | 1999-11-26 | Shaped coke produced win non-adhesive coal and its prodn. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99125126A CN1077912C (en) | 1999-11-26 | 1999-11-26 | Shaped coke produced win non-adhesive coal and its prodn. method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1250797A CN1250797A (en) | 2000-04-19 |
| CN1077912C true CN1077912C (en) | 2002-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99125126A Expired - Fee Related CN1077912C (en) | 1999-11-26 | 1999-11-26 | Shaped coke produced win non-adhesive coal and its prodn. method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1077912C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5280072B2 (en) * | 2008-03-10 | 2013-09-04 | 株式会社神戸製鋼所 | Coke production method |
| JP5438277B2 (en) * | 2008-03-11 | 2014-03-12 | 株式会社神戸製鋼所 | Coke manufacturing method and pig iron manufacturing method |
| CN101250418B (en) * | 2008-04-08 | 2011-12-21 | 朱海涛 | Gasification, dry distillation and carbonization integrated system carbonization method |
| CN102559228A (en) * | 2010-12-31 | 2012-07-11 | 宝钢集团新疆八一钢铁有限公司 | Lignite retorting, blending and coking process |
| CN102533297A (en) * | 2010-12-31 | 2012-07-04 | 宝钢集团新疆八一钢铁有限公司 | Dry distillation, coal blending and coking process of non-coking coal |
| CN102559229A (en) * | 2010-12-31 | 2012-07-11 | 宝钢集团新疆八一钢铁有限公司 | Jet coal retorting, blending and coking process |
| CN102533298A (en) * | 2010-12-31 | 2012-07-04 | 宝钢集团新疆八一钢铁有限公司 | Dry distillation, coal blending and coking process of weakly caking coal |
| 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 |
| CN104327872B (en) * | 2014-09-16 | 2018-08-07 | 北京三聚环保新材料股份有限公司 | A kind of technique that coking is carried out to the coal raw material containing low-order coal and recycles coal tar pitch |
| CN104327871B (en) * | 2014-09-16 | 2018-03-16 | 北京三聚环保新材料股份有限公司 | A kind of moulded coal raw material suitable for tamping coke furnace low-order coal upgrading |
| CN104479709B (en) * | 2014-11-14 | 2019-01-15 | 北京三聚环保新材料股份有限公司 | A kind of moulded coal raw material suitable for low-order coal process for upgrading |
| CN113563913A (en) * | 2021-07-06 | 2021-10-29 | 新疆吉泰低阶煤利用研究有限责任公司 | Preparation method of high-reactivity high-strength coke |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153810A (en) * | 1996-10-25 | 1997-07-09 | 翼城县煤炭工业管理局 | Cast coke briquette produced with anthracite and its production process |
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1999
- 1999-11-26 CN CN99125126A patent/CN1077912C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153810A (en) * | 1996-10-25 | 1997-07-09 | 翼城县煤炭工业管理局 | Cast coke briquette produced with anthracite and its production process |
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| CN1250797A (en) | 2000-04-19 |
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