CN101260460B - Technique for producing agglomeration by mixing sulfuric acid residue and concentrate - Google Patents
Technique for producing agglomeration by mixing sulfuric acid residue and concentrate Download PDFInfo
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- CN101260460B CN101260460B CN2008100695931A CN200810069593A CN101260460B CN 101260460 B CN101260460 B CN 101260460B CN 2008100695931 A CN2008100695931 A CN 2008100695931A CN 200810069593 A CN200810069593 A CN 200810069593A CN 101260460 B CN101260460 B CN 101260460B
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- ore
- concentrate
- purple
- mixed
- sulfate slag
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a technique for preparing pellet by mixing the purple ore and the ore concentrate. The purple ore with the iron grade ranging from 30 to 55 percent is mixed with the ore concentrate, the weight percentage of the purple ore ranges from 10 to 18 percent, the weight percentage of the ore concentrate ranges from 82 to 90 percent; the swell soil is added into the mixed ore to mix, the weight of the swell soil occupies 1 to 3.2 percent of the weight of the mixed ore; one part of the mixed ore substance is grinded by a globe mill and is mixed with the remaining part evenly to obtain the mixed ore of purple ore and the ore concentrate as well as the swell soil, the mixed ore is taken as the material for preparing the pellet. The technique can make the best of the industry waste of purple ore, changes waste into valuable and ensures that the purple ore as a resource containing iron ore is used effectively; part of the purple ore replaces the ore concentrate and the ore cost is lowered, thereby lowering the smelting production cost and increasing the competitive force of the enterprise; a slag yard is not necessary to pile up the purple ore, thereby avoiding the environmental pollution of the purple ore and being beneficial to the environment protection.
Description
Technical field
The present invention relates to the production technique of a kind of blast-furnace smelting, especially mix the Technology of producing pelletizing with concentrate with sulfate slag with pelletizing.
Background technology
Sulfate slag is that sulfuric acid is produced the waste that produces in the process, and contains abundant iron in the sulfate slag, and its iron grade is usually 30%---55%.But in the prior art, sulfate slag is as a kind of industrial waste product, is deposited in the slag field, because the influence of residue sulphur in seepage and the sulfate slag, sulfate slag has caused bigger pollution to environment on every side.And in fact, sulfate slag also is a kind of iron ore that contains, and in today of shortage of resources, how rationally utilizes, effectively develops sulfate slag and just become an inevitable choice.
In the prior art, the pelletizing that blast-furnace smelting is used is made ball with concentrate usually, roasting in shaft furnace and getting.Used concentrate, its iron grade is generally 60% to 65%, and is more stable, as geographic iron ores such as China Liaoning, Henan, Hebei, Hunan.Because the concentrate price skyrockets, and produces pelletizing with single concentrate and just seems with high costs, is unfavorable for reducing smelting cost.Our company produces pelletizing price height, deficiency that smelting cost is high at single concentrate, experimental study substitutes the part concentrate with cheap sulfate slag, the sulfate slag that adds certain content in concentrate is produced pelletizing, to reduce production costs, to turn waste into wealth as the sulfate slag of industrial waste product, fully utilize.Our company has obtained certain progress.
In the prior art, the processing mode of utilizing to sulfate slag, the part introduction is arranged in pertinent literature, being called " method of producing high grade magnetic concentrate from sulfuric-acid residue composite pellet ", application number as name is 200510032099.4 the disclosed technology contents of Chinese invention patent, and another name to be called " technique for treating pyrile cinder ", application number be 200710078338.9 the disclosed technology contents of Chinese invention patent.But above-mentioned technology does not all relate to the technology of the direct mixing manufacture pelletizing of sulfate slag and concentrate.
Summary of the invention
The present invention is directed to the above-mentioned deficiency of prior art, propose a kind of sulfate slag of using and mix the novel technique of producing pelletizing with concentrate.This technical scheme can make full use of this industrial waste product of sulfate slag, reduces production costs, and plays certain environment protection conduct simultaneously.
Technical scheme of the present invention: sulfate slag mixes the Technology of producing pelletizing with concentrate, it is characterized in that:
1, the iron grade is 30%---55% sulfate slag mixes mutually with concentrate, wherein,
The sulfate slag weight percent is 10%-18%, and the concentrate weight percent is 82%-90%;
2, add wilkinite in the ore deposit in above-mentioned sulfate slag and mixing of concentrate and mix, wilkinite weight accounts for the 1%-3.2% that mixes ore deposit weight;
3, with the mixed mineral substance of above-mentioned sulfate slag, concentrate and wilkinite, a part wherein mixes with remaining part with ball mushroom machine profit mill back, obtains sulfate slag, concentrate and wilkinite mixing ore deposit, as the materials for later use of producing pelletizing.
When pipelining, best mode is 50% sulfate slag, concentrate and wilkinite mixture ball mushroom machine profit mill, mixes with all the other 50% mixtures that moisten mill.
Sulfate slag of the present invention mixes the Technology of producing pelletizing with concentrate, have following characteristics:
1, can make full use of this industrial waste product of sulfate slag, turn waste into wealth, as a kind of iron-stone resource, process and concentrate mixed smelting can smelt out with iron wherein, are effectively used.
2, replace concentrate with the part of sulfuric acid slag, can reduce ore cost, smelt production cost, strengthen Enterprises'Competitiveness thereby reduce.
3, stack sulfate slag without the slag field, eliminated the pollution of sulfate slag, help environment protection environment.
4, adopt the mode of half profit mill, shatter strength of green pellet, ultimate compression strength are obviously improved, can satisfy production requirement.
Embodiment
Sulfate slag of the present invention mixes the Technology of producing pelletizing with concentrate, it is characterized in that:
1, the iron grade is 30%---55% sulfate slag mixes mutually with concentrate, wherein,
The sulfate slag weight percent is 10%-18%, and the concentrate weight percent is 82%-90%;
2, add wilkinite in the ore deposit in above-mentioned sulfate slag and mixing of concentrate and mix, wilkinite weight accounts for the 1%-3.2% that mixes ore deposit weight;
3, with the mixed mineral substance of above-mentioned sulfate slag, concentrate and wilkinite, a part wherein mixes with remaining part with ball mushroom machine profit mill back, obtains sulfate slag, concentrate and wilkinite mixing ore deposit, as the materials for later use of producing pelletizing.
When pipelining, best mode is 50% sulfate slag, concentrate and wilkinite mixture ball mushroom machine profit mill, mixes with other 50% mixture that moistens mill.
In concrete proportioning, according to the iron grade of sulfate slag and the concrete arts demand of smelting, the sulfate slag weight percent can be chosen concrete parameter value such as 10%, 10.5%, 11%, 11.8%, 12%, 12.4%, 13%, 13.5%, 14%, 14.2%, 15%, 15.8%, 16%, 16.5%, 17%, 17.2%, 17.8%, 18%; Corresponding concentrate weight percent can choose 90%, 89.5%, 89%, 88.2%, 88%, 87.6%, 87%, 86.5%, 86%, 85.8%, 85%, 84.2%, 84%, 83.5%, 83%, 82.8%, 82.2%, 82% etc., can realistic arts demand just.
In concrete proportioning, wilkinite weight accounts for the per-cent that mixes ore deposit weight can choose 1%, 1.2%, 1.5%, 1.8%, 2.0%, 2.2%, 2.4%, 2.5%, 2.8%, 3.0%, 3.2% etc., can realistic arts demand just.
Through repeatedly, repeatedly the experiment, the mixed material of above-mentioned sulfate slag, concentrate and wilkinite mixes with the another part that does not moisten mill with part profit mill, can significantly improve every performance of mixing the ore deposit, the shatter strength of green pellet, ultimate compression strength etc. of experiment usefulness are obviously improved.
When pipelining, best mode is 50% sulfate slag, concentrate and wilkinite mixture ball mushroom machine profit mill, mixes with other 50% mixture that moistens mill; Promptly half moistens the mode of grinding, and it is optimum that every performance index reach.
Claims (1)
1. sulfate slag mixes the Technology of producing pelletizing with concentrate, it is characterized in that:
One, the iron grade is 30%---55% sulfate slag mixes mutually with concentrate, and wherein, the sulfate slag weight percent is 10%-18%, and the concentrate weight percent is 82%-90%;
Two, add wilkinite in the ore deposit in above-mentioned sulfate slag and mixing of concentrate and mix, wilkinite weight accounts for the 1.2%-3.2% that mixes ore deposit weight;
Three, with the mixed mineral substance of above-mentioned sulfate slag, concentrate and wilkinite, 50% usefulness ball mill profit mill wherein mixes with other 50% mixture that does not moisten mill, obtains sulfate slag, concentrate and wilkinite mixing ore deposit, as the materials for later use of producing pelletizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100695931A CN101260460B (en) | 2008-04-25 | 2008-04-25 | Technique for producing agglomeration by mixing sulfuric acid residue and concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100695931A CN101260460B (en) | 2008-04-25 | 2008-04-25 | Technique for producing agglomeration by mixing sulfuric acid residue and concentrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101260460A CN101260460A (en) | 2008-09-10 |
| CN101260460B true CN101260460B (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100695931A Expired - Fee Related CN101260460B (en) | 2008-04-25 | 2008-04-25 | Technique for producing agglomeration by mixing sulfuric acid residue and concentrate |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649391B (en) * | 2009-06-26 | 2011-10-05 | 中冶长天国际工程有限责任公司 | Pellet preparation method |
| CN102242254B (en) * | 2011-06-29 | 2012-11-07 | 中南大学 | High sulfide pyrite pellet reinforced roasting consolidation technology |
| CN102304597B (en) * | 2011-08-26 | 2013-03-13 | 沈阳博联特熔融还原科技有限公司 | Method for smelting iron by utilizing sulfuric acid slag |
| CN103146917B (en) * | 2013-03-19 | 2014-05-07 | 蒋天勇 | Method for manufacturing slag pellets through sulfuric-acid residue |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1425509A (en) * | 2002-11-27 | 2003-06-25 | 谢海泉 | Process for recovering and reutilizing sulfuric acid dregs waste material |
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2008
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1425509A (en) * | 2002-11-27 | 2003-06-25 | 谢海泉 | Process for recovering and reutilizing sulfuric acid dregs waste material |
Non-Patent Citations (8)
| Title |
|---|
| 唐达高.硫酸烧渣生产球团的技术探讨.中国资源综合利用24 7.2006,24(7),5-7. |
| 唐达高.硫酸烧渣生产球团的技术探讨.中国资源综合利用24 7.2006,24(7),5-7. * |
| 武轶.球团配用硫酸渣的试验研究.钢铁研究34 4.2006,34(4),6-9. |
| 武轶.球团配用硫酸渣的试验研究.钢铁研究34 4.2006,34(4),6-9. * |
| 葛芳红.硫酸渣代替部分铁精矿制备氧化球团可行性的研究.浙江冶金 3.1996,(3),1,2,50. |
| 葛芳红.硫酸渣代替部分铁精矿制备氧化球团可行性的研究.浙江冶金 3.1996,(3),1,2,50. * |
| 薛立基等.硫酸渣用于球团生产的实验研究.湖南冶金 1.1992,(1),8-10,25. |
| 薛立基等.硫酸渣用于球团生产的实验研究.湖南冶金 1.1992,(1),8-10,25. * |
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| CN101260460A (en) | 2008-09-10 |
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Granted publication date: 20100602 Termination date: 20140425 |