CN1104236A - Shaped coal and its production method - Google Patents
Shaped coal and its production method Download PDFInfo
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- CN1104236A CN1104236A CN 94108512 CN94108512A CN1104236A CN 1104236 A CN1104236 A CN 1104236A CN 94108512 CN94108512 CN 94108512 CN 94108512 A CN94108512 A CN 94108512A CN 1104236 A CN1104236 A CN 1104236A
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Abstract
The present invention relates to a moulded coal (moulded coke) and its production method, belonging to a production method to make powdered coal (hard coal and soft coal) into moulded coal (moulded coke) suited for industries of smelting and gas-forming. It is characterized by that 60-85% of hard coal and 40-15% of soft coal are mixed and pulverized, then a proper quantity of binding agent is added, then stirred and fed into forming machine to mould, and then oven-dried, and fed into close-burning furnace, and finally discharged into coke quenching pool to quench coke, and then dried, so that the invented finished product can be obtained. The shape of the finished product can be defined according to the requirements of user.
Description
The invention belongs to a fine coal (especially hard coal fine coal) be processed into be suitable for smelting make, industry such as gas should have and moulded coal (formed coke) and production method thereof.
Current, hard coal (weakly caking coal) is owing to determined by the physicochemical property of himself, and its purposes, use range and market are very limited.Except lump coal can be used for industrial gas making, its most of fine coal can only be burnt as domestic fuel, industrial value is not high, waste bigger, along with the improving constantly of mining mechanization level, the productive rate of anthracite block coal was reducing significantly, roughly reduced by 20% through measuring and calculating in recent years, have a strong impact on the development of chemical fertilizer and metallurgy industry, the economic benefit in colliery is subjected to very big influence.
The objective of the invention is to utilize fine coal to be processed into moulded coal (formed coke), make its technical indicator that on technical indicator, reaches existing lump coal and metallurgical coke, can only be thereby solve fine coal as domestic fuel, and the not high problem of industrial value.
The present invention is achieved in that at first fine coal hard coal and the bituminous coal of grain through not waiting, by mixing machine mixing, wherein hard coal 60-80%, bituminous coal 40-15%, carry out fragmentation through crusher, reach and add binding agent behind the certain particle size and stir, binding agent can be the 5-1% of total raw material coal, send into shaper after waiting to stir, difform mould is made in difference requirement by the user, the extrusions moulded coal, and Common Shape has, semicircle, spherical, bar-shaped and mosaic shape is called for short green-ball.Be to reduce the moisture content of green-ball and improve intensity, green-ball must enter dryer and carries out drying treatment after the moulding.After treating that green-ball moisture content drops to certain numerical value, can send into coke oven and carry out the close-burning processing, the close-burning temperature is 650 °～850 °, the close-burning time is 30-40 minute, green-ball enters quenching in the coke quenching pool after the coke oven close-burning is handled, drying (seasoning or mechanical drying) promptly forms the finished product moulded coal or formed coke also is semicoke or walnut Jiao after the coke quenching pool quenching.
Technical indicator of the present invention such as following table:
Can find out that from last table moulded coal or formed coke can replace present lump coal and coke fully, its principal feature is: intensity height, active good, water-repellancy by force, not cracking.
Figure is moulded coal (formed coke) production process flow process figure:
Further specify again in conjunction with lifting row below by accompanying drawing:
The hard coal of Shen, Ci County, Handan City man village Coal Production is by test, want to produce moulded coal up to standard (formed coke), just need hard coal 65% to mix with bituminous coal 35%, enter crusher in crushing after the mixing, make particle diameter less than 3mm, entering stirrer again stirs, add 2% binding agent of raw material weight this moment, enters the shaper moulding then, extrudes semicircle moulded coal, be transported to drying kiln through travelling belt, enter coke oven after the oven dry and in 750 ± 100 furnace temperature, carry out close-burning, after about 40 minutes, come out of the stove, enter the coke quenching pool quenching, after bucket elevator is transported to stockyard, in order to treating pin.
Claims (2)
1, a kind of moulded coal (formed coke) is characterized in that: it mainly is made up of less than hard coal, the bituminous coal of 4mm particle diameter, its content adds small amount of binder after being respectively 60-85%, 40-15%, mixing, the moulding close-burning forms, and its type shape mainly contains semicircle, circle, bar-shaped and mosaic shape.
2, a kind of method of moulded coal (formed coke) of production claim 1 division, comprise peace mixed raw material (hard coal and bituminous coal) together, it is characterized in that: the raw material that mixes, enter crusher in crushing, the adding binding agent stirs after reaching certain particle size, binding agent can be the 5-1% of raw material, send into the shaper moulding after waiting to stir, enter dryer (kiln) then and carry out drying treatment, send into coke oven after the processing and carry out the close-burning processing, the close-burning temperature is at 650 °-850 °, and the close-burning time is to enter quenching in the coke quenching pool in 30-50 minute at last, and drying promptly forms finished product after the coke quenching pool quenching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94108512 CN1104236A (en) | 1994-07-17 | 1994-07-17 | Shaped coal and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94108512 CN1104236A (en) | 1994-07-17 | 1994-07-17 | Shaped coal and its production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1104236A true CN1104236A (en) | 1995-06-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94108512 Pending CN1104236A (en) | 1994-07-17 | 1994-07-17 | Shaped coal and its production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1104236A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063777C (en) * | 1997-11-07 | 2001-03-28 | 张炳魁 | Metallurgical waste ash content controlled formed coke and molding coal and its producing method |
| CN1298819C (en) * | 2004-08-27 | 2007-02-07 | 邵常艳 | Metallurgical coke made by blue carbon and making process thereof |
| CN101155898B (en) * | 2005-04-08 | 2011-03-23 | 新日铁工程技术株式会社 | Wet raw material drier and method of drying |
| CN109385289A (en) * | 2018-11-06 | 2019-02-26 | 中国科学院山西煤炭化学研究所 | A method of using anthracite as main material production semicoke |
| CN111936601A (en) * | 2018-02-06 | 2020-11-13 | 塔塔钢铁有限公司 | Method for producing metallurgical coke from non-coking coal |
-
1994
- 1994-07-17 CN CN 94108512 patent/CN1104236A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063777C (en) * | 1997-11-07 | 2001-03-28 | 张炳魁 | Metallurgical waste ash content controlled formed coke and molding coal and its producing method |
| CN1298819C (en) * | 2004-08-27 | 2007-02-07 | 邵常艳 | Metallurgical coke made by blue carbon and making process thereof |
| CN101155898B (en) * | 2005-04-08 | 2011-03-23 | 新日铁工程技术株式会社 | Wet raw material drier and method of drying |
| CN111936601A (en) * | 2018-02-06 | 2020-11-13 | 塔塔钢铁有限公司 | Method for producing metallurgical coke from non-coking coal |
| CN111936601B (en) * | 2018-02-06 | 2022-04-29 | 塔塔钢铁有限公司 | Method for producing metallurgical coke from non-coking coal |
| CN109385289A (en) * | 2018-11-06 | 2019-02-26 | 中国科学院山西煤炭化学研究所 | A method of using anthracite as main material production semicoke |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |