CN105536966A - Electric furnace slag metal deep recovery technology for casting - Google Patents
Electric furnace slag metal deep recovery technology for casting Download PDFInfo
- Publication number
- CN105536966A CN105536966A CN201610059683.7A CN201610059683A CN105536966A CN 105536966 A CN105536966 A CN 105536966A CN 201610059683 A CN201610059683 A CN 201610059683A CN 105536966 A CN105536966 A CN 105536966A
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- CN
- China
- Prior art keywords
- iron
- electric furnace
- slag
- furnace slag
- casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an electric furnace slag metal deep recovery technology for casting. The technology includes the steps that firstly, slag is conveyed into a crusher through a conveyer; secondly, the crushed slag is conveyed into a magnetic separator through the conveyor; thirdly, generated iron dregs are conveyed into a wet type ball grinding mill through a disc feeder; fourthly, briquettes and filter residues in the iron dregs are separated through a filtering and separating screen; and fifthly, fine powered iron and ash in the filter residues are separated again through the magnetic separator. The whole production process is reasonable, the devices are complete, the dust removing effect is good, dust emission is reduced, a circulating water system is reliable, circulating water is fully utilized, economical efficiency and environmental protection are achieved, the system is superior to similar systems of other industries in the aspects of energy saving, emission reducing and environment protecting, after slag is deeply recovered, the recovery rate of the briquettes can reach 30%, and the recovery rate of fine powdered iron can reach 30%.
Description
Technical field
The present invention relates to casting technology field, be specially a kind of casting electric furnace slag metal depth recovery process.
Background technology
At present, for casting with in electric furnace slag treatment, domestic almost seldom have casting producer to recycle it, slag is mainly piled up by they, be accumulated to a certain amount of resale to slag reclaim factory, slag reclaims factory and reclaims slag targetedly, then sells Foundry Works with high price.Come and go like this, the interests loss of Foundry Works is comparatively large, and if things go on like this, can cause larger economic loss, and slag is stacked, not only occupied ground resource, also can cause environmental pollution.
Therefore, be the severe problem of foundry enterprise one of facing for carrying out recycling with electric furnace slag, must carry out the research of slag recovery technology, improve number one to the full extent, decreasing pollution thing discharges.
Summary of the invention
The object of the present invention is to provide a kind of casting electric furnace slag metal depth recovery process, to solve the problem proposed in above-mentioned background technology, production process is simple, environment protection health.
For achieving the above object, the invention provides following technical scheme: a kind of casting electric furnace slag metal depth recovery process, 1), slag is transported in disintegrating machine by conveyer;
2), deliver in magnetic separator through broken slag by conveyer;
3), the bits iron of generation is transported in wet ball mill through disk feeder;
4), iron block wherein and filter residue is separated through isolated by filtration net;
5), filter residue is separated Iron concentrate wherein and lime-ash through magnetic separator again.
Preferably, step 1) in, the airtight setting of disintegrating machine also sets up fiber bag precipitator.
Preferably, step 2), magnetic separator is about two staggered magnetic separators, and the separated bits iron that comes and waste residue are transferred in hopper and waste residue recycling bin respectively through the transport tape of different route, and the bits iron entering hopper carries out subsequent treatment again.
Preferably, in step 3), wet ball mill was to start water pump button before running.
Compared with prior art, the invention has the beneficial effects as follows: 1, broken dust removal integrated plant, above disintegrating machine, set up dust arrester, the dust produced when slag is broken purifies through dust arrester, can not unorderedly be discharged in air, environmentally friendly.
2, after slag fragmentation, what carry out is dual magnetic separation, and effectively bits iron and waste residue are separated, the rate of recovery of metal ingredient is high.
3, use wet ball mill to grind, stop to produce dust and dust loss, significantly reduce ball mill running noises, protect and improve the operating environment of production scene.It is the iron block of suitable size that wet ball mill carries out grinding what obtain, by washing, the iron block obtained can directly be put in castings production as raw material, without the need to carrying out follow-up cleaning to iron block again, saved a large amount of man power and material's cost, wherein the rate of recovery of iron block can reach about 30%.The Iron concentrate produced in process of lapping is elected by one magnet separator magnetic again, and the rate of recovery of Iron concentrate also can reach about 30%.
4, whole slag exhausting line achieves the whole utilizations to slag, wherein iron block puts into production in cast product as raw material, and Iron concentrate is sold as high-quality iron powder, and waste residue also can be sold, can not cause place resource occupation, whole process meets principle and the regulation of recycling economy.
What 5, wet ball mill passed into is recirculated water, set up circulation, can not only recycle recirculated water, and surface rain also can be collected process utilization, economic environmental protection.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Detailed description of the invention
Refer to Fig. 1, the invention provides a kind of technical scheme: a kind of casting electric furnace slag metal depth recovery process, 1), slag is transported in disintegrating machine by conveyer; 2), deliver in magnetic separator through broken slag by conveyer; 3), the bits iron of generation is transported in wet ball mill through disk feeder; 4), iron block wherein and filter residue is separated through isolated by filtration net; 5), filter residue is separated Iron concentrate wherein and lime-ash through magnetic separator again.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
Claims (4)
1. a casting electric furnace slag metal depth recovery process, is characterized in that,
1), slag is transported in disintegrating machine by conveyer;
2), deliver in magnetic separator through broken slag by conveyer;
3), the bits iron of generation is transported in wet ball mill through disk feeder;
4), iron block wherein and filter residue is separated through isolated by filtration net;
5), filter residue is separated Iron concentrate wherein and lime-ash through magnetic separator again.
2. a kind of casting electric furnace slag metal depth recovery process according to claim 1, is characterized in that: step 1) in, the airtight setting of disintegrating machine also sets up fiber bag precipitator.
3. a kind of casting electric furnace slag metal depth recovery process according to claim 1, it is characterized in that: step 2), magnetic separator is about two staggered magnetic separators, the separated bits iron that comes and waste residue are transferred in hopper and waste residue recycling bin respectively through the transport tape of different route, and the bits iron entering hopper carries out subsequent treatment again.
4. a kind of casting electric furnace slag metal depth recovery process according to claim 1, it is characterized in that: in step 3), wet ball mill was to start water pump button before running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059683.7A CN105536966A (en) | 2016-01-29 | 2016-01-29 | Electric furnace slag metal deep recovery technology for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059683.7A CN105536966A (en) | 2016-01-29 | 2016-01-29 | Electric furnace slag metal deep recovery technology for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105536966A true CN105536966A (en) | 2016-05-04 |
Family
ID=55816800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610059683.7A Pending CN105536966A (en) | 2016-01-29 | 2016-01-29 | Electric furnace slag metal deep recovery technology for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105536966A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076589A (en) * | 2016-06-23 | 2016-11-09 | 含山县永帮再生资源利用有限公司 | A kind of method that cement raw material prepared by waste residue using casting automobile cylinder cover |
| CN106583036A (en) * | 2016-12-28 | 2017-04-26 | 重庆大学 | Concentration method for iron-ore-bearing matter in garbage heat treatment ash |
| CN109231644A (en) * | 2018-09-28 | 2019-01-18 | 江苏久华环保科技股份有限公司 | Iron recyclable device and method in a kind of wastewater of steel industry |
| CN109293084A (en) * | 2018-09-28 | 2019-02-01 | 江苏久华环保科技股份有限公司 | A kind of waste steel slag slurry liquor treating process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3754713A (en) * | 1970-03-28 | 1973-08-28 | Bayer Ag | Separation of magnetizable particles |
| CN101538631A (en) * | 2009-02-05 | 2009-09-23 | 丁家伟 | Process and device for smelting ferronickel and nickel-containing molten iron by using lower-nickel materials |
| CN101864501A (en) * | 2010-06-22 | 2010-10-20 | 新兴河北工程技术有限公司 | Method for recycling iron from steel slag |
| CN102836778A (en) * | 2011-06-23 | 2012-12-26 | 庞兵 | Wet type treatment process for stainless steel slag |
| CN103586118A (en) * | 2013-11-12 | 2014-02-19 | 河南理工大学 | Embedded-type all-grain-size dry magnetic separation technology for closed recycle of iron-containing minerals in steel slag |
| CN203874873U (en) * | 2014-05-14 | 2014-10-15 | 中材（天津）粉体技术装备有限公司 | Nickel slag grinding system |
| CN104152606A (en) * | 2014-09-01 | 2014-11-19 | 攀枝花钢城集团有限公司 | A method for separating slag from iron of waste slag produced by electric furnace smelting |
| CN105177197A (en) * | 2015-09-29 | 2015-12-23 | 北京首钢国际工程技术有限公司 | Finish machining process for slag iron |
-
2016
- 2016-01-29 CN CN201610059683.7A patent/CN105536966A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3754713A (en) * | 1970-03-28 | 1973-08-28 | Bayer Ag | Separation of magnetizable particles |
| CN101538631A (en) * | 2009-02-05 | 2009-09-23 | 丁家伟 | Process and device for smelting ferronickel and nickel-containing molten iron by using lower-nickel materials |
| CN101864501A (en) * | 2010-06-22 | 2010-10-20 | 新兴河北工程技术有限公司 | Method for recycling iron from steel slag |
| CN102836778A (en) * | 2011-06-23 | 2012-12-26 | 庞兵 | Wet type treatment process for stainless steel slag |
| CN103586118A (en) * | 2013-11-12 | 2014-02-19 | 河南理工大学 | Embedded-type all-grain-size dry magnetic separation technology for closed recycle of iron-containing minerals in steel slag |
| CN203874873U (en) * | 2014-05-14 | 2014-10-15 | 中材（天津）粉体技术装备有限公司 | Nickel slag grinding system |
| CN104152606A (en) * | 2014-09-01 | 2014-11-19 | 攀枝花钢城集团有限公司 | A method for separating slag from iron of waste slag produced by electric furnace smelting |
| CN105177197A (en) * | 2015-09-29 | 2015-12-23 | 北京首钢国际工程技术有限公司 | Finish machining process for slag iron |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076589A (en) * | 2016-06-23 | 2016-11-09 | 含山县永帮再生资源利用有限公司 | A kind of method that cement raw material prepared by waste residue using casting automobile cylinder cover |
| CN106583036A (en) * | 2016-12-28 | 2017-04-26 | 重庆大学 | Concentration method for iron-ore-bearing matter in garbage heat treatment ash |
| CN106583036B (en) * | 2016-12-28 | 2018-02-23 | 重庆大学 | The enrichment method of ferrous mineral in a kind of rubbish heat treatment lime-ash |
| CN109231644A (en) * | 2018-09-28 | 2019-01-18 | 江苏久华环保科技股份有限公司 | Iron recyclable device and method in a kind of wastewater of steel industry |
| CN109293084A (en) * | 2018-09-28 | 2019-02-01 | 江苏久华环保科技股份有限公司 | A kind of waste steel slag slurry liquor treating process |
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Application publication date: 20160504 |