CN101927208B - Optimized process for processing steel slag by magnetic separation - Google Patents
Optimized process for processing steel slag by magnetic separation Download PDFInfo
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- CN101927208B CN101927208B CN2009100121626A CN200910012162A CN101927208B CN 101927208 B CN101927208 B CN 101927208B CN 2009100121626 A CN2009100121626 A CN 2009100121626A CN 200910012162 A CN200910012162 A CN 200910012162A CN 101927208 B CN101927208 B CN 101927208B
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention relates to an optimized process for processing steel slag by magnetic separation, which is characterized by comprising the following steps: (1) screening steel slag by using a No.1 vibrating screen, separating out the steel slag and slag steel by using a No.1 magnetic separator to separate the oversize material, feeding the slag steel to a slag steel tank, and feeding the steel slag to a jaw crusher; (2) feeding the screen underflow of the No.1 vibrating screen and the discharge of the jaw crusher to a No.2 vibrating screen together, separating the oversize material by using a No.2 magnetic separator, feeding the separated slag steel to a rod mill, and stripping steel slag on the slag steel by the vibration effect of the rod mill; (3) feeding the steel slag separated out by the No.2 magnetic separator to a No.3 vibrating screen, feeding the oversize material to a large-size tailing storeroom, and feeding the screen underflow to a medium-size tailing storeroom; and (4) feeding the discharge of the rod mill to a No.4 vibrating screen, feeding the oversize material the iron content of which is no less than 90% to the slag steel tank, feeding the screen underflow to a No.3 magnetic separator, feeding the separated steel slag magnetic separation powder to a magnetic separation powder storeroom, and feeding the steel slag to a small-size tailing storeroom. By using the invention, high-quality slag steel the iron content of which is more than 90% can be obtained, thereby fully recovering the iron in the steel slag.
Description
Technical field
The present invention relates to a kind of Technology of Steel Slag Processing, particularly a kind of Optimization Technology of processing steel slag by magnetic separation.
Background technology
Slag is the waste residue of discharging in the steelmaking process, and at present, domestic Slag Processing Technology is single, generally adopts fragmentation-screening-magnetic separation to sort.The existing 2,400,000 ton/years of magnetic separation processing lines of Anshan iron and steel plant are used for processing the slag that converter produces.This production line adopts two sections magnetic pulleys of two sections fragmentations to sort, and the steel scoria magnetic separation product after sorting is divided into a steel, magnetic separation, converter tailings.The granularity of producing is the grain steel of 10～50mm, and iron-holder is 60%～65%, and because its basicity fluctuation is large, there is certain difficulty in the recycling of loopback blast furnace, and the grain steel is stored up contaminated environment in a large number.Therefore, need to further optimize steel scoria magnetic separation technique, improve the rate of recovery of iron and steel material and the utilization rate of converter tailings.
Summary of the invention
The object of the present invention is to provide a kind of Optimization Technology of processing steel slag by magnetic separation, this technique can make the iron and steel material fully reclaim, and grain steel iron-holder 〉=90% is used for steel-making as steel scrap after processing, and improves simultaneously the utilization rate of magnetic separation rear converter tailings.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of Optimization Technology of steel scoria magnetic separation processing, this technique after fragmentation, screening, magnetic separation, rod milling, obtains product slag steel, magnetic separation, converter ground slag take the vexed slag of heat as raw material, and this technique comprises the steps:
1) with after the vexed processing of molten steel slag heat, sieve by the 1# vibratory sieve, after the on-the-sieve material deironing, slag is delivered to hydraulic jaw crusher and is carried out fragmentation, and bulk slag steel drops down onto in the slag steel tank temporarily;
2) material behind 1# vibratory sieve undersize material and the jaw crushing crusher machine together sieves by the 2# vibratory sieve; Obtain magnetic separation and converter ground slag under the 2# Vibration Screen behind the Material deironing;
3) on the 2# Vibration Screen behind the Material deironing, slag is delivered to the 3# vibratory sieve and is sieved the converter tailings that obtains two kinds of specifications;
4) on the 2# Vibration Screen behind the Material deironing, the slag steel that obtains is delivered to rod mill and is carried out rod milling, delivers to the 4# vibratory sieve after the rod mill blanking, and 4# vibratory sieve on-the-sieve material slag steel drops down onto in the slag steel tank temporarily; Undersize material converter ground slag and 2# vibratory sieve undersize material converter ground slag together enter the tailings storehouse.
The granularity of the vexed slag of described raw material heat is 0～200mm, wherein, 0～60mm greater than 90%.
The aperture of described 1# vibratory sieve is that the aperture of 80mm, 2# vibratory sieve is that the aperture of 10mm, 3# vibratory sieve is that the aperture of 50mm, 4# vibratory sieve is 10mm.
Described product is: particle diameter is the slag steel of 10～80mm, 80～200mm, the magnetic separation that particle diameter is 0～10mm, the converter ground slag that particle diameter is 0～10mm, 10～50mm, 50～80mm.
The invention has the beneficial effects as follows: this technique both can be processed separately converter slag, can also process the desulfurization slag, by fragmentation and multi-stage screening, and use rod mill that steel and the further of slag are separated, can obtain iron-holder greater than 90% high-quality steel scrap, make the iron in the slag obtain abundant recovery, effectively utilize steel slag resource, improved the comprehensive utilization ratio of slag, reduced environmental pollution, steel slag tailings is done more classifications, to improve the utilization rate of magnetic separation rear converter tailings.
Description of drawings
Fig. 1 is the Optimization Technology of a kind of processing steel slag by magnetic separation of the present invention.
The specific embodiment
The present invention is further described below in conjunction with accompanying drawing.
A kind of Optimization Technology of steel scoria magnetic separation processing, this technique obtains slag steel, magnetic separation, converter ground slag take the vexed slag of heat as raw material after fragmentation, screening, magnetic separation, rod milling.This technique comprises the steps:
1) with granularity be 0～200mm (wherein, 0～60mm greater than 90%) the vexed processing of molten steel slag heat after slag to be delivered to the aperture by 1# oscillating feeder, 1# adhesive tape conveyor be that the 1# vibratory sieve of 80mm sieves, on-the-sieve material through the 3# rubber conveyer be delivered to 1# electromagnetic self-dumping tramp iron separator, 2# electromagnetic self-dumping tramp iron separator carries out deironing, slag after the deironing is delivered to hydraulic jaw crusher and is carried out fragmentation, and granularity is that the bulk slag steel of 80-200mm drops down onto in the slag steel tank of 80-200mm temporarily;
2) 1# vibratory sieve undersize material is carried through 2# rubber conveyer, 4# rubber conveyer, together is transported to the 2# vibratory sieve that the aperture is 10mm with material behind the jaw crushing crusher machine through the 5# rubber conveyer, sieves; 2# vibratory sieve undersize material is carried through 15# rubber conveyer, bucket elevator, 16# rubber conveyer, and after the deironing of 5# electromagnetic self-dumping tramp iron separator, the magnetic separation that obtains 0～10mm is delivered to the magnetic separation storehouse; Particle diameter is that the converter ground slag of 0～10mm is delivered to the tailings storehouse through the 17# rubber conveyer;
3) 2# vibratory sieve on-the-sieve material is carried through the 6# rubber conveyer, after the deironing of 4# electromagnetic self-dumping tramp iron separator, it is that the 3# vibratory sieve of 50mm sieves that the slag of 10-80mm is delivered to the aperture through the 7# rubber conveyer, obtain the converter ground slag of two kinds of specifications of 10～50mm, 50～80mm, send into the tailings storehouse through 9# rubber conveyer, 10# rubber conveyer respectively;
4) slag of 2# vibratory sieve on-the-sieve material 10-80mm is after the 6# rubber conveyer is delivered to the deironing of 4# electromagnetic self-dumping tramp iron separator, the 10-80mm slag steel that obtains is delivered to rod mill through 11# rubber conveyer, 2# oscillating feeder and is carried out rod milling, the rod mill blanking is delivered to the 4# vibratory sieve that the aperture is 10mm by 12# rubber conveyer, 13# rubber conveyer, and 4# vibratory sieve on-the-sieve material slag steel drops down onto in the slag steel tank of 10-80mm temporarily; The converter ground slag of undersize material 0-10mm is carried through the 14# adhesive tape conveyor, carry through the 15# adhesive tape conveyor again with 2# vibratory sieve undersize material, deliver to 5# electromagnetic self-dumping tramp iron separator through bucket elevator, 16# rubber conveyer, after deironing, the converter ground slag is delivered to through the 17# rubber conveyer and is entered the tailings storehouse; Magnetic separation enters the magnetic separation storehouse.
This technique is applicable to vessel slag and desulfurization slag, and the iron and steel material is fully reclaimed, and the steel scrap after the recovery is used for steel-making; Improved simultaneously the converter tailings utilization rate after the magnetic separation.
Claims (2)
1. the Optimization Technology of a steel scoria magnetic separation processing is characterized in that this technique after fragmentation, screening, magnetic separation, rod milling, obtains product slag steel, magnetic separation, converter ground slag take the vexed slag of heat as raw material, and this technique comprises the steps:
1) granularity of the vexed slag of raw material heat is greater than 0, less than 200mm, wherein, granularity greater than 0, less than the raw material of 60mm greater than 90%; After the vexed processing of molten steel slag heat, to sieve by the 1# vibratory sieve, after the on-the-sieve material deironing, slag is delivered to hydraulic jaw crusher and is carried out fragmentation, and bulk slag steel drops down onto in the slag steel tank temporarily;
2) material behind 1# vibratory sieve undersize material and the jaw crushing crusher machine together sieves by the 2# vibratory sieve; Obtain magnetic separation and converter ground slag under the 2# Vibration Screen behind the Material deironing;
3) on the 2# Vibration Screen behind the Material deironing, slag is delivered to the 3# vibratory sieve and is sieved the converter tailings that obtains two kinds of specifications;
4) on the 2# Vibration Screen behind the Material deironing, the slag steel that obtains is delivered to rod mill and is carried out rod milling, delivers to the 4# vibratory sieve after the rod mill blanking, and 4# vibratory sieve on-the-sieve material slag steel drops down onto in the slag steel tank temporarily; Undersize material converter ground slag and 2# vibratory sieve undersize material converter ground slag together enter the tailings storehouse;
Described product is that particle diameter is the slag steel of 10～80mm, 80～200mm; Particle diameter is greater than 0, less than the magnetic separation of 10mm; Particle diameter is greater than the 0 converter ground slag less than 10mm, 10～50mm, 50～80mm.
2. the Optimization Technology of a kind of steel scoria magnetic separation processing according to claim 1 is characterized in that, the aperture of described 1# vibratory sieve is that the aperture of 80mm, 2# vibratory sieve is that the aperture of 10mm, 3# vibratory sieve is that the aperture of 50mm, 4# vibratory sieve is 10mm.
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| CN103031390A (en) * | 2011-09-30 | 2013-04-10 | 鞍钢股份有限公司 | Method for using tailings after thermal air tight treatment of converter slag |
| CN103084266B (en) * | 2011-10-28 | 2016-05-18 | 鞍山钢铁集团公司矿渣开发公司 | A kind of production method of smelting steel tailings miropowder and device |
| CN102534068A (en) * | 2012-01-30 | 2012-07-04 | 山西太钢不锈钢股份有限公司 | Method for reusing common steel slag |
| CN103508688B (en) * | 2012-06-27 | 2015-06-17 | 南京梅山冶金发展有限公司 | Post-treatment method for desulphurization slag |
| CN102747174A (en) * | 2012-07-04 | 2012-10-24 | 新兴河北工程技术有限公司 | Process for extracting steel scrap and fine iron powder from slag by using dry method |
| CN103041904A (en) * | 2012-12-25 | 2013-04-17 | 鞍山钢铁集团公司 | Steel slag powder producing method employing roller press |
| CN104120205B (en) * | 2013-04-28 | 2016-12-07 | 上海梅山钢铁股份有限公司 | A kind of recycle the method for ferrum in desulfurizing slag of hot metal |
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| CN103276122A (en) * | 2013-06-19 | 2013-09-04 | 济钢集团有限公司 | Short-process magnetic separation steel slag recovery device and method thereof |
| CN103937915B (en) * | 2014-04-10 | 2015-09-16 | 攀钢集团西昌钢钒有限公司 | A kind for the treatment of process of converter slag |
| CN104004867B (en) * | 2014-05-13 | 2016-01-20 | 中冶南方工程技术有限公司 | A kind of slag secondary treatment technique of efficient economy |
| CN104492581B (en) * | 2014-06-13 | 2016-08-24 | 江苏融达新材料股份有限公司 | The slag processing metal recovery production method that the cooling of the multiple type of cooling obtains |
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| CN115055271A (en) * | 2022-06-06 | 2022-09-16 | 山东莱钢永锋钢铁有限公司 | Recovery processing method of iron ore powder magnetically separated from converter steel slag |
| CN115739644A (en) * | 2022-11-25 | 2023-03-07 | 钢城集团凉山瑞海实业有限公司 | Blast furnace slag treatment system and treatment method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089191A (en) * | 1993-04-12 | 1994-07-13 | 鞍山钢铁公司 | Magnetic separating, processing and recovery system for steel slag |
| CN1718747A (en) * | 2005-06-30 | 2006-01-11 | 武汉理工大学 | Method of high efficiency recovering iron from slag |
| CN1924025A (en) * | 2005-08-31 | 2007-03-07 | 安阳钢铁集团有限责任公司 | Process for treating slag steel |
| CN101249498A (en) * | 2008-04-03 | 2008-08-27 | 南京钢铁集团盛达实业有限公司 | Cold steel scoria processing method |
| CN101342512A (en) * | 2007-07-12 | 2009-01-14 | 南京板桥钢渣有限责任公司 | Steel scoria processing method |
-
2009
- 2009-06-23 CN CN2009100121626A patent/CN101927208B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089191A (en) * | 1993-04-12 | 1994-07-13 | 鞍山钢铁公司 | Magnetic separating, processing and recovery system for steel slag |
| CN1718747A (en) * | 2005-06-30 | 2006-01-11 | 武汉理工大学 | Method of high efficiency recovering iron from slag |
| CN1924025A (en) * | 2005-08-31 | 2007-03-07 | 安阳钢铁集团有限责任公司 | Process for treating slag steel |
| CN101342512A (en) * | 2007-07-12 | 2009-01-14 | 南京板桥钢渣有限责任公司 | Steel scoria processing method |
| CN101249498A (en) * | 2008-04-03 | 2008-08-27 | 南京钢铁集团盛达实业有限公司 | Cold steel scoria processing method |
Non-Patent Citations (6)
| Title |
|---|
| 刘晓君.鞍钢35万t/a钢渣磁选加工线的生产概况浅析.《鞍钢技术》.1996,39-42. * |
| 刘晓君.鞍钢引进的240万t/a钢渣磁选加工线的运行分析.《鞍钢技术》.1998,9-14. * |
| 朱兴源.鞍钢矿渣的综合利用.《钢铁》.1988,第23卷(第7期),60-62,68. * |
| 毕琳.钢渣加工工艺的现状与发展.《矿产综合利用》.1999,(第3期),30-34. * |
| 王向锋等.鞍钢钢渣综合利用现状及其发展方向.《鞍钢技术》.2009,(第357期),11-14. * |
| 王益人.钢渣多级磁选综合利用实践.《炼钢》.2002,第18卷(第6期),23-25. * |
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Address after: 114000 No. 1 ring steel road, Tiexi District, Liaoning, Anshan Patentee after: ANSHAN STEEL GROUP Co.,Ltd. Address before: 114000 No. 1 ring steel road, Tiexi District, Liaoning, Anshan Patentee before: Anshan Iron and Steel Group Co.,Ltd. |
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