CN101660061B - New process for removing arsenic by strong oxidization in blast furnace - Google Patents
New process for removing arsenic by strong oxidization in blast furnace Download PDFInfo
- Publication number
- CN101660061B CN101660061B CN2008100321878A CN200810032187A CN101660061B CN 101660061 B CN101660061 B CN 101660061B CN 2008100321878 A CN2008100321878 A CN 2008100321878A CN 200810032187 A CN200810032187 A CN 200810032187A CN 101660061 B CN101660061 B CN 101660061B
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- blast furnace
- strong
- oxidization
- arsenic
- mixture
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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 aims to provide a new process for removing arsenic by strong oxidization in a blast furnace, which has simple operation and produces waste slag in accordance with environment-friendly requirements. The invention adopts the technical content that the new process for removing the arsenic by the strong oxidization in the blast furnace is characterized in that the process flow comprises steps of feeding stibium doped waste, silicon iron calcium and coking coal into the blast furnace from a blast furnace inlet, burning gold in the blast furnace, blowing air into the blast furnace through an air blower, oxidizing the stibium doped waste, smelting the mixture, oxidizing and separating the mixture, treating the mixture in a dust absorption chamber, adding glass clarifying agent into the mixture, and putting a product into a storage. The process has the specific implementation mode that 10 percent of coking coal fuel is matched during adding the raw materials, the oxidization and temperature are controlled during charging the materials, and the materials accommodated in the furnace is 0.6 m<2>; the strong oxidization air quantity is 30 m<3> per minute, and the air pressure is 29.6 Pascal per square centimeter; and the strong oxidization is carried out at the temperature of 800 DEG C, and the discharged arsenic slag is 0.005 kilogram per 100 kilograms. The process has the advantages of improving the refining purity of nonferrous metals, reducing the content of toxic materials in the waste slag, and having remarkable effect on environmental protection.
Description
Technical field
Patent of the present invention relates to the technology of non-ferrous metal metallurgy, specifically is new process for removing arsenic by strong oxidization in blast furnace.
Background technology
At present, the smelting of non-ferrous metal mainly is to adopt yellow soda ash to utilize reverberatory furnace and arsenic to select slag to separate more than 10% with sodium hydroxide, become sodium arseniate, containing arsenic through the waste residue of smelting reaches more than 10%, the waste water of this smelting process, waste gas can not reach national environmental standard at all, and this kind way increased cost, are unfavorable for environmental protection, the waste residue of discharging has damaged air and natural plants, animal, and is bigger near human beings'health harm.
Summary of the invention
A kind of new process for removing arsenic by strong oxidization in blast furnace that the purpose of this invention is to provide a kind of simple to operate, waste residue compliance with environmental protection requirements.
Technology contents of the present invention is: new process for removing arsenic by strong oxidization in blast furnace, it is characterized in that: the step of technical process is stilba waste material → ferrosilicon calcium → coking coal → blast furnace import → blast furnace burning gold → gas blower blowing → stilba waste material oxidation → melting → oxidation separation → dust suction chamber → glass fining agent → product warehousing.
New process for removing arsenic by strong oxidization in blast furnace according to above-mentioned is characterized in that: be equipped with 10% coke fuel when adding raw material, and controlled oxidation, temperature during pan feeding, stove content material is 0.6m
2Strong oxygen air quantity 30m
3/ minute, blast 29.6 handkerchief/square centimeters; Temperature is carried out strong oxidation for 800 ℃, and discharging the arsenic slag is 0.005 kilogram/100 kilograms.
The invention has the beneficial effects as follows: improved the purity that non-ferrous metal refines, reduced the content of poisonous goods and materials in the waste residue, the protection of environment is had a unusual effect.
Embodiment
Utilize common antimony lead waste material to tremble in the blast furnace, add simultaneously in coke 10% (raw material) the antimony lead waste material and contain antimony 20%, plumbous 20%, arsenic 15%, its main assorted material 45%, and to add parting material, wherein silicon, iron, calcium each 3%, 5%, 1%, enter mixed smelting.With fermented soya beans, salted or other wise blower fan air blast oxygenation.The blanking of blast furnace is according to oxidation, temperature, and the blast furnace smelting storehouse is controlled at 0.6m during melting
2, filler was 6 tons in per 8 hours, was strong oxidation in addition, blast volume 30m
2/ minute, blast 29.6 handkerchief/square centimeters, temperature is suitable for 800 ℃.
Claims (1)
1. new process for removing arsenic by strong oxidization in blast furnace, it is characterized in that: the step of technical process is, stilba waste material → ferrosilicon calcium → coking coal → blast furnace import → blast furnace burning gold → gas blower blowing → stilba waste material oxidation → melting → oxidation separation → dust suction chamber → glass fining agent → product warehousing, be equipped with 10% coke fuel when adding raw material, controlled oxidation, temperature during pan feeding, stove content material is 0.6m
2Strong oxygen air quantity 30m
3/ minute, blast 29.6 handkerchief/square centimeters; Temperature is carried out strong oxidation for 800 ℃, and discharging the arsenic slag is 0.005 kilogram/100 kilograms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100321878A CN101660061B (en) | 2008-08-29 | 2008-08-29 | New process for removing arsenic by strong oxidization in blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100321878A CN101660061B (en) | 2008-08-29 | 2008-08-29 | New process for removing arsenic by strong oxidization in blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101660061A CN101660061A (en) | 2010-03-03 |
| CN101660061B true CN101660061B (en) | 2011-06-01 |
Family
ID=41788315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100321878A Expired - Fee Related CN101660061B (en) | 2008-08-29 | 2008-08-29 | New process for removing arsenic by strong oxidization in blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101660061B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX2023002015A (en) | 2020-08-18 | 2023-04-11 | Enviro Metals Llc | Metal refinement. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102039A (en) * | 1987-06-15 | 1988-12-28 | 张宏君 | Antimony, gold smelting technology |
| CN1389584A (en) * | 2002-07-05 | 2003-01-08 | 宋功文 | Efficient separation process and apparatus of main valuable metals in jamesonite |
| CN1530453A (en) * | 2003-03-13 | 2004-09-22 | 湖南东港锑品有限公司 | Treatment of slag from smelting lead and antimony |
-
2008
- 2008-08-29 CN CN2008100321878A patent/CN101660061B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102039A (en) * | 1987-06-15 | 1988-12-28 | 张宏君 | Antimony, gold smelting technology |
| CN1389584A (en) * | 2002-07-05 | 2003-01-08 | 宋功文 | Efficient separation process and apparatus of main valuable metals in jamesonite |
| CN1530453A (en) * | 2003-03-13 | 2004-09-22 | 湖南东港锑品有限公司 | Treatment of slag from smelting lead and antimony |
Non-Patent Citations (1)
| Title |
|---|
| 刘共元等.鼓风炉挥发熔炼锑金精矿工艺探讨.《有色金属(冶炼部分)》.2003,(第3期),35-37. * |
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| Publication number | Publication date |
|---|---|
| CN101660061A (en) | 2010-03-03 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20120829 |