CN1089191A - Magnetic separating, processing and recovery system for steel slag - Google Patents

Magnetic separating, processing and recovery system for steel slag Download PDF

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Publication number
CN1089191A
CN1089191A CN 93104386 CN93104386A CN1089191A CN 1089191 A CN1089191 A CN 1089191A CN 93104386 CN93104386 CN 93104386 CN 93104386 A CN93104386 A CN 93104386A CN 1089191 A CN1089191 A CN 1089191A
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CN
China
Prior art keywords
magnetic
slag
recovery system
ferrous metal
crushing
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Pending
Application number
CN 93104386
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Chinese (zh)
Inventor
周绍宪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Design Institute Of Angang Mining Co
Angang Steel Co Ltd
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Design Institute Of Angang Mining Co
Angang Steel Co Ltd
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Publication date
Application filed by Design Institute Of Angang Mining Co, Angang Steel Co Ltd filed Critical Design Institute Of Angang Mining Co
Priority to CN 93104386 priority Critical patent/CN1089191A/en
Publication of CN1089191A publication Critical patent/CN1089191A/en
Pending legal-status Critical Current

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  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A kind of steel scoria magnetic separation recovery system of utilizing magnetic selection method to reclaim ferrous metal; this system is at first with the slag sieve classification; select for use suitable magnetic plant to reclaim granulated iron to the slag of size fractionated then; magnetic separation intermediate products retrieval system after fragmentation is handled again; system's breaker mounting is crossed iron protection and electrical equipment interlocked control; reliable; the waste residue that produces can be used for doing flux, paves the way; there is not secondary emission; technology is simple, advanced technology, reliable; improve environment, have good economical, societal benefits.

Description

Magnetic separating, processing and recovery system for steel slag
The present invention relates to a kind ofly from steel-making waste residue, reclaim the magnetic separating, processing and recovery system for steel slag of metal, also belong to comprehensive utilization and environmental protective measure with magnetic selection method.Pile up like a mountain for the waste residue of discharging in the STEELMAKING PRODUCTION for many years, and increasing year by year, and wherein contained a large amount of useful metals go out of use, and cause the wasting of resources and economic loss; Cause a large amount of land seizures and serious environmental to pollute simultaneously.
The objective of the invention is to seek that a kind of technology is simple, advanced technology, reliable, comprehensive recovery system that cost is low, profitable, make steel slag be able to abundant recycling, reclaim ferrous metal to greatest extent, improve environment, contaminated solution reduces and takes up an area of.
Magnetic separating, processing and recovery system for steel slag principle process of the present invention is seen accompanying drawing, mainly by screening operation (1,2,3,4,5), magnetic concentration working (6,7,8,9,10,11), crushing operation (12,13,14) and formations such as picking operation (15,16), material transfer equipment, control panel and auxiliary equipment.The big grade that the former slag of slag at first sieves out through diagrid 1 partly is sent to electromagnetic disc 6 and tells qualified granulated iron, and the middle mine tailing of its generation then after fragmentation, returns diagrid again; The undersize of diagrid, successively by reciprocating sieve 2,3,4,5,, the oversize of each section reciprocating sieve draws the qualified granulated iron of size fractionated respectively through magnetic concentration working 7,8,9,10,11; After the intermediate products that magnetic concentration working 7,8 is discharged are handled and are elected to be industry 15,16 sortings, enter crushing operation 13,14 broken back retrieval system suitable operations more respectively and handle again; Handle be elected to be the waste residue that Ye Lost abandons then can be as refractory material, the particulate tailings that magnetic concentration working 9,10,11 produces then can be used for paving the way etc.
The present invention utilizes screening operation that former slag is carried out sieve classification, material to size fractionated adopts suitable magnetic plant to handle recovery granulated iron respectively, as using the electromagnetic disc sorting, can select the magnetic separation roller for use to fine fraction, the optional belt magnetic separator of using of middle rank to coarse fraction is optional.The bigger intermediate products of granularity that the part magnetic concentration working is produced can select for use suitable disintegrating machine (as: crushing mill, jaw crusher, gyratory crusher etc.) to carry out fragmentation simultaneously, so that retrieval system is handled again.Thereby the efficient of various magnetic separation and disintegrating apparatus is not fully exerted.Still can be different with the ferrous metal particle size distribution characteristics according to the particle property of the former slag of slag, suitably increase or minimizing screening, magnetic separation, picking and crushing operation hop count, so that under specific slag raw material condition, the technological process of recovery system reaches optimization.For the reliability service that guarantees system crushing operation was installed the iron protective device, recovery system equipment was installed the electrical equipment interlocked control.
Because above characteristics, this system has the advantage that technological process is simple, technical-economic index is advanced, easy to operate, reliable, and slag can all be recycled after treatment, no longer produces secondary emission, saves the soil, improves environment.
As follows at the specific embodiment that the inventor did:
It is as follows that capital equipment is selected: screening operation diagrid 1 is selected 1 of 356 * 356mm gravity flow screen for use, and screening operation 2,3 is selected 1 of USK1.6 * 4.55M reciprocating sieve respectively for use, and screening operation 4 is selected 2 of US2.0-32ED reciprocating sieves for use; Magnetic concentration working 6,7,8,9,10 is selected 1 on each 1 of electromagnetic disc, RMA600/120S, RMA300/80S, RMA250/100, RMA250/120 belt magnetic separator and MR80/220 magnetic separation roller respectively for use; Crushing operation 12,13,14 is selected each 1 of crushing mill BEH1000/630 jaw crusher, 1600H/C gyratory crusher respectively for use; Mass transport is selected 5 of adjustable delivery chutes for use; Jaw crusher and gyratory crusher were installed the iron protective device; System equipment is installed the electrical equipment interlocked control.
This system can handle steel mill every year and discharge 2,400,000 tons of steel slags, reclaim ferrous grade 50.31~85.26% various 26.7 ten thousand tons of grade iron (for details see attached table), produce flux 15~200,000 ton, pave the way slag 100~1,100,000 ton, aggregate 88 for building~930,000 tons, total economic benefit reaches about 20,000,000 yuan.Save the soil simultaneously, improved social environment.
Subordinate list:
Embodiment reclaims ferrous metal formation table
Grain (mm) level product (%) position heavy (ten thousand tons) amount purposes
>356 85.26 4 steel-making
856~100 84.61 3 steel-making
100~50 80.84 2 ironmaking
50~20 80.14 2.5 ironmaking
20~8 68.46 9 ironmaking
8~0 50.31 6.2 sintering
Amount to 26.7

Claims (2)

1, a kind of magnetic selection method that utilizes that is made of screening operation, magnetic concentration working, crushing operation, picking operation, conveying equipment, control panel and auxiliary equipment etc. reclaims the magnetic separating, processing and recovery system for steel slag of ferrous metal from slag, its major technique is characterised in that this system is at first with former ballast screen classification, select for use suitable magnetic plant to handle respectively to the material of different stage, reclaim useful ferrous metal, simultaneously to sort intermediate products that the back produces select suitable crusher in crushing for use after retrieval system handle again.
2, recovery system according to claim 1, its major technique feature are different with the ferrous metal particle size distribution characteristics according to the former slag particle degree of slag characteristic, can suitably increase or reduce the hop count of screening, magnetic separation, picking and crushing operation.
CN 93104386 1993-04-12 1993-04-12 Magnetic separating, processing and recovery system for steel slag Pending CN1089191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 93104386 CN1089191A (en) 1993-04-12 1993-04-12 Magnetic separating, processing and recovery system for steel slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 93104386 CN1089191A (en) 1993-04-12 1993-04-12 Magnetic separating, processing and recovery system for steel slag

Publications (1)

Publication Number Publication Date
CN1089191A true CN1089191A (en) 1994-07-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 93104386 Pending CN1089191A (en) 1993-04-12 1993-04-12 Magnetic separating, processing and recovery system for steel slag

Country Status (1)

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CN (1) CN1089191A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1108876C (en) * 2000-09-08 2003-05-21 武汉冶金渣环保工程有限责任公司 Wet process for magnetic separation of steel slags
WO2006012781A1 (en) * 2004-08-02 2006-02-09 Weitian Zhang A process and system for treating ultra fine powder of steel slag
CN1304119C (en) * 2003-12-15 2007-03-14 湘潭钢铁集团有限公司 Process for ball milling and water washing of waste iron and steel slag, slag slurry treatment process, and apparatus therefor
CN100404695C (en) * 2005-06-30 2008-07-23 湖北大学 Production line of high efficiency energy saving steel slag breeze
CN100421806C (en) * 2004-01-02 2008-10-01 宝钢集团上海梅山有限公司 Rollscale impurity-removing system and process
CN101906541A (en) * 2010-07-15 2010-12-08 河北上大再生资源科技有限公司 Method for comprehensively utilizing nickel alloy slag
CN101927208B (en) * 2009-06-23 2013-03-13 鞍山钢铁集团公司 Optimized process for processing steel slag by magnetic separation
CN103014198A (en) * 2011-09-21 2013-04-03 山西太钢不锈钢股份有限公司 Treatment method of molten iron pretreatment slag
CN104384020A (en) * 2014-11-05 2015-03-04 北方重工集团有限公司 Depth-induced crushing mineral separation technology of super-lean magnetic iron ore
CN104588389A (en) * 2014-11-19 2015-05-06 晋江市冠兴建材有限责任公司 Fuel waste residue recovery and treatment system
CN108169053A (en) * 2017-12-16 2018-06-15 芜湖新兴铸管有限责任公司 A kind of slag all iron content detection method
CN108940519A (en) * 2018-06-11 2018-12-07 淮北卓颂建筑工程有限公司 A kind of steel slag freezing crushing method
CN109663799A (en) * 2019-01-10 2019-04-23 苏州望意阳环保科技有限公司 A kind of Technology of Steel Slag Processing for thoroughly changing wholly-owned source
CN116000051A (en) * 2023-01-09 2023-04-25 武安市裕华钢铁有限公司 Fine treatment process of environment-friendly steelmaking converter slag

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1108876C (en) * 2000-09-08 2003-05-21 武汉冶金渣环保工程有限责任公司 Wet process for magnetic separation of steel slags
CN1304119C (en) * 2003-12-15 2007-03-14 湘潭钢铁集团有限公司 Process for ball milling and water washing of waste iron and steel slag, slag slurry treatment process, and apparatus therefor
CN100421806C (en) * 2004-01-02 2008-10-01 宝钢集团上海梅山有限公司 Rollscale impurity-removing system and process
WO2006012781A1 (en) * 2004-08-02 2006-02-09 Weitian Zhang A process and system for treating ultra fine powder of steel slag
CN100404695C (en) * 2005-06-30 2008-07-23 湖北大学 Production line of high efficiency energy saving steel slag breeze
CN101927208B (en) * 2009-06-23 2013-03-13 鞍山钢铁集团公司 Optimized process for processing steel slag by magnetic separation
CN101906541A (en) * 2010-07-15 2010-12-08 河北上大再生资源科技有限公司 Method for comprehensively utilizing nickel alloy slag
CN103014198A (en) * 2011-09-21 2013-04-03 山西太钢不锈钢股份有限公司 Treatment method of molten iron pretreatment slag
CN104384020A (en) * 2014-11-05 2015-03-04 北方重工集团有限公司 Depth-induced crushing mineral separation technology of super-lean magnetic iron ore
CN104384020B (en) * 2014-11-05 2016-06-29 北方重工集团有限公司 A kind of Ultra-low-grade magnetite stone depth crushing ore-dressing technique
CN104588389A (en) * 2014-11-19 2015-05-06 晋江市冠兴建材有限责任公司 Fuel waste residue recovery and treatment system
CN104588389B (en) * 2014-11-19 2016-06-29 晋江市冠兴建材有限责任公司 Fuel waste residue recovery and processing system
CN108169053A (en) * 2017-12-16 2018-06-15 芜湖新兴铸管有限责任公司 A kind of slag all iron content detection method
CN108940519A (en) * 2018-06-11 2018-12-07 淮北卓颂建筑工程有限公司 A kind of steel slag freezing crushing method
CN109663799A (en) * 2019-01-10 2019-04-23 苏州望意阳环保科技有限公司 A kind of Technology of Steel Slag Processing for thoroughly changing wholly-owned source
CN116000051A (en) * 2023-01-09 2023-04-25 武安市裕华钢铁有限公司 Fine treatment process of environment-friendly steelmaking converter slag

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