CN1858271A - Process for producing steel slag iron fine powder - Google Patents
Process for producing steel slag iron fine powder Download PDFInfo
- Publication number
- CN1858271A CN1858271A CN 200610044388 CN200610044388A CN1858271A CN 1858271 A CN1858271 A CN 1858271A CN 200610044388 CN200610044388 CN 200610044388 CN 200610044388 A CN200610044388 A CN 200610044388A CN 1858271 A CN1858271 A CN 1858271A
- Authority
- CN
- China
- Prior art keywords
- powder
- steel
- slag
- steel slag
- iron fine
- 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.)
- Granted
Links
Abstract
The process of producing fine iron powder with steel slag includes the following steps: stoving steel slag in a drum type drier to water content less than 1.5%, pre-magnetizing steel slag in an electromagnetic pre-magnetizing device, pre-homogenizing, dry pulverizing, separating steel slag powder of 3 mm below size, wind separating steel slag powder of 3 mm below size into two parts including steel slag powder of 180 mesh over size and steel slag powder of 180 mesh below size, magnetically separating the steel slag powder of 180 mesh over size in a permanent magnetic separator, demagnetizing the separated steel slag powder, grinding the demagnetized steel slag powder to 180 mesh below size, and separating steel slag fine iron powder from superfine steel slag powder. The present invention has low production cost and no environmental pollution.
Description
Technical field
The present invention relates to smelt the processing of waste material, is a kind of production technique of steel slag iron fine powder.
Background technology
Slag is a kind of waste material, because it includes the iron about 30%, in order to cut the waste, adopts WATER-WASHING METHOD that iron is selected behind many pension parachute slags.In recent years, this area had adopted more different technologies such as magnetic method to choose iron powder in slag, but some technology more complicated, the cost height, and other has the difficult standard that can use as material of construction after slag is handled etc. that reaches of some treatment process.
Summary of the invention
The objective of the invention is, the production technique of steel slag iron fine powder is provided, after it selected iron to handle to slag, tailings can be done material of construction and use, and the production technique cost is low, and is free from environmental pollution etc.
The present invention for achieving the above object, be achieved through the following technical solutions: with iron-holder is about 30%, granularity is 0-12mm, moisture about 10% slag, dry through rotating drum type drying machine, make the slag water content less than 1.5%, slag after the oven dry is sent into electromagnetism and is given chinaware and magnetize in advance, send into again and give homogenizing storehouse and carry out homogenizing, store, carry out dry type then and give grinding, with the particle steel more than 3 millimeters with separate less than 3 millimeters steel-making slag powder, obtain the particle product made from steel, adopt powder separating machine to carry out the winnowing powder steel-making slag powder below 3 millimeters then, steel-making slag powder is divided into greater than 180 orders with less than 180 orders, two grade particles, to insert bitubular dry type permanent magnetic separator greater than 180 purpose particles and carry out ferromagnetic choosing, realize separating of smart powder of slag scum and steel-making slag powder, obtain the steel slag iron fine powder product, steel-making slag powder after the magnetic separation adopts the electromagnetism demagnetizer that steel-making slag powder is taken off magnetic, to reduce the steel-making slag powder specific susceptibility, remove magnetic coagulation, to take off steel-making slag powder behind the magnetic again sends into ball mill and is finely ground to below 180 orders, with powder separating machine steel slag iron fine powder is separated with slag micro powder, obtain steel slag iron fine powder and slag micro powder product.Described powder separating machine is the O-Sepa powder separating machine.The production technique of described a kind of steel slag iron fine powder, its steel-making slag powder grain size content behind ball milling that takes off behind the magnetic is the powder of 45%-60%.It is rod mill that described dry type is given the milling equipment that gives that adopts in the powder-grinding process.Described ball milling to steel-making slag powder adopts three storehouse formula ball mills.The rotating speed of O-Sepa powder separating machine is 450-550 rev/min.
The characteristics of technology of the present invention are to the slag dry separation of dry grinding, to realize separating fully of iron and slag.Selected equipment is to have passed through repeatedly the best equipment type selecting that draws after on probation in the technology of the present invention.
Advantage of the present invention is: whole technology can be produced three kinds of products, that is: particle steel, the smart powder of slag and slag micro powder.The particle steel can be directly used in iron-smelting raw material, does not need its other processing, and its iron-holder reaches more than 95%, can save a large amount of iron ores, and save energy is remarkable; The smart powder product of slag can be used for raw materials for sintering, and its iron-holder is more than 70%, and is of high grade; Slag micro powder can directly be made material of construction and use, and good product quality, and iron-holder is less than 0.5%; Whole technology input cost is low, can make slag handle no any waste; Free from environmental pollution etc.
Embodiment
The embodiment of the invention:
The production technique of steel slag iron fine powder of the present invention, with iron-holder be about 30%, granularity is 0-12mm, moisture about 10% slag, dry through rotating drum type drying machine, make the slag water content less than 1.5%, during oven dry, the feeding coal of rotating drum type drying machine is controlled in the 30t/h, and temperature is at 450-750 ℃, avoiding in drying course, producing physicochemical change, and reduce the intractability of next step technology.Slag after the oven dry is sent into electromagnetism and is given chinaware and magnetize in advance, to reach the purpose that improves the steel-making slag powder specific susceptibility, slag after the magnetization is sent into and is given homogenizing storehouse and carry out homogenizing, store, carry out dry type then and give grinding, use various ball-grinding machines all can, preferred rod mill, with the particle steel more than 3 millimeters with separate less than 3 millimeters steel-making slag powder, obtain the particle product made from steel, this product can be directly used in steel-making, adopt powder separating machine to carry out the winnowing powder steel-making slag powder below 3 millimeters then, powder separating machine adopts the O-Sepa powder separating machine, can make the fractional efficiency height, energy consumption is low, gravity classification is effective, and steel-making slag powder is divided into greater than 180 orders with less than 180 orders, two grade particles, will insert bitubular dry type permanent magnetic separator greater than 180 purpose particles and carry out ferromagnetic choosing, select steel slag iron fine powder and steel-making slag powder, obtain the steel slag iron fine powder product, iron-holder is more than 70%, as raw materials for sintering.Adopt the electromagnetism demagnetizer that steel-making slag powder is taken off magnetic at last, to reduce the steel-making slag powder specific susceptibility, remove magnetic coagulation, to take off steel-making slag powder behind the magnetic again and send into ball mill and be finely ground to below 180 orders, steel slag iron fine powder be separated with slag micro powder, obtain steel slag iron fine powder and slag micro powder product with the O-Sepa powder separating machine, slag micro powder is used for material of construction, iron-holder is less than 0.5%, and steel slag iron fine powder herein is used for raw materials for sintering, and iron-holder is more than 70%.The grain size content of steel-making slag powder behind ball milling that takes off behind the magnetic of the present invention is the powder of 45%-60%.Thereby make the slag and the metallic iron that are than fine particle embedding cloth be convenient to monomer dissociation.To the preferred equipment of the ball milling of steel-making slag powder is three storehouse formula ball mills, and the rotating speed of O-Sepa powder separating machine of the present invention is 450-550 rev/min, preferred 500 rev/mins.Strict control rotating speed can be isolating more thorough with steel slag iron fine powder and slag micro powder.
Claims (6)
1, the production technique of steel slag iron fine powder, it is characterized in that: with iron-holder is about 30%, granularity is 0-12mm, moisture about 10% slag, dry through rotating drum type drying machine, make the slag water content less than 1.5%, slag after the oven dry is sent into electromagnetism and is given chinaware and magnetize in advance, send into again and give homogenizing storehouse and carry out homogenizing, store, carry out dry type then and give grinding, with the particle steel more than 3 millimeters with separate less than 3 millimeters steel-making slag powder, obtain the particle product made from steel, adopt powder separating machine to carry out the winnowing powder steel-making slag powder below 3 millimeters then, steel-making slag powder is divided into greater than 180 orders with less than 180 orders, two grade particles, to insert bitubular dry type permanent magnetic separator greater than 180 purpose particles and carry out ferromagnetic choosing, realize separating of smart powder of slag scum and steel-making slag powder, obtain the steel slag iron fine powder product, steel-making slag powder after the magnetic separation adopts the electromagnetism demagnetizer that steel-making slag powder is taken off magnetic, to reduce the steel-making slag powder specific susceptibility, remove magnetic coagulation, to take off steel-making slag powder behind the magnetic again sends into ball mill and is finely ground to below 180 orders, with powder separating machine steel slag iron fine powder is separated with slag micro powder, obtain steel slag iron fine powder and slag micro powder product.
2, the production technique of steel slag iron fine powder according to claim 1 is characterized in that: described powder separating machine is the O-Sepa powder separating machine.
3, the production technique of steel slag iron fine powder according to claim 1 and 2 is characterized in that: the grain size content of steel-making slag powder behind ball milling that takes off behind the magnetic is the powder of 45%-60%.
4, the production technique of steel slag iron fine powder according to claim 1 and 2 is characterized in that: it is rod mill that dry type is given the milling equipment that gives that adopts in the powder-grinding process.
5, the production technique of steel slag iron fine powder according to claim 4 is characterized in that: the ball milling to steel-making slag powder adopts three storehouse formula ball mills.
6, the production technique of steel slag iron fine powder according to claim 2 is characterized in that: the rotating speed of O-Sepa powder separating machine is 450-550 rev/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100443880A CN100383260C (en) | 2006-06-06 | 2006-06-06 | Process for producing steel slag iron fine powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100443880A CN100383260C (en) | 2006-06-06 | 2006-06-06 | Process for producing steel slag iron fine powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1858271A true CN1858271A (en) | 2006-11-08 |
| CN100383260C CN100383260C (en) | 2008-04-23 |
Family
ID=37297228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100443880A Expired - Fee Related CN100383260C (en) | 2006-06-06 | 2006-06-06 | Process for producing steel slag iron fine powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100383260C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168155A (en) * | 2011-03-17 | 2011-08-31 | 济南鲍安环保技术开发有限公司 | Production process of steel slag micro-powder |
| CN103555867A (en) * | 2013-10-31 | 2014-02-05 | 中冶南方工程技术有限公司 | System and method for converting steel slag into renewable resources |
| CN104399584A (en) * | 2014-12-13 | 2015-03-11 | 唐山市丰润区华晨机械维修部 | Dry magnetic separation technology for waste steel slags |
| CN104828877A (en) * | 2015-05-28 | 2015-08-12 | 攀枝花钢城集团有限公司 | Method for recycling ferric oxide in converter steel slag |
| CN104841554A (en) * | 2015-06-04 | 2015-08-19 | 山东省建筑材料工业设计研究院 | Special RO-phase magnetic separator for steel slag micro powder |
| CN106542922A (en) * | 2015-09-16 | 2017-03-29 | 陈耀辉 | A kind of soil conditioner and its preparation technology of turf quantity of magnetism daughter element |
| CN108380360A (en) * | 2018-02-07 | 2018-08-10 | 西宁特殊钢股份有限公司 | A kind of high-quality steel slag iron fine powder production technology |
| CN109365106A (en) * | 2018-10-29 | 2019-02-22 | 酒泉钢铁(集团)有限责任公司 | A kind of stainless steel slag dry type magnetic separation device and technique |
| CN111185301A (en) * | 2020-01-10 | 2020-05-22 | 江苏梵爵科技有限公司 | Dry-type environment-friendly ore dressing system and ore dressing method |
| CN114871236A (en) * | 2022-03-23 | 2022-08-09 | 山东山科同创环境工程设计院有限公司 | System and method for roller-type grinding of ultrafine powder by using fine steel slag tailings |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4666591A (en) * | 1984-01-10 | 1987-05-19 | Kawasaki Jukogyo Kabushiki Kaisha | Slag disposal method |
| CN1108200C (en) * | 2000-09-08 | 2003-05-14 | 武汉冶金渣环保工程有限责任公司 | Comprehensive utilization of steel slags |
| CN1189413C (en) * | 2002-06-19 | 2005-02-16 | 北京高路通科技发展有限公司 | Process for treating steel slag |
| CN1730671A (en) * | 2005-08-18 | 2006-02-08 | 冀更新 | Dry type fine iron powder pick-up method from steel slag powder |
-
2006
- 2006-06-06 CN CNB2006100443880A patent/CN100383260C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168155B (en) * | 2011-03-17 | 2012-09-05 | 天津苏美尔环保投资有限公司 | Production process of steel slag micro-powder |
| CN102168155A (en) * | 2011-03-17 | 2011-08-31 | 济南鲍安环保技术开发有限公司 | Production process of steel slag micro-powder |
| CN103555867B (en) * | 2013-10-31 | 2016-03-02 | 中冶南方工程技术有限公司 | A kind of slag is converted into system and the method thereof of renewable resource |
| CN103555867A (en) * | 2013-10-31 | 2014-02-05 | 中冶南方工程技术有限公司 | System and method for converting steel slag into renewable resources |
| CN104399584A (en) * | 2014-12-13 | 2015-03-11 | 唐山市丰润区华晨机械维修部 | Dry magnetic separation technology for waste steel slags |
| CN104828877A (en) * | 2015-05-28 | 2015-08-12 | 攀枝花钢城集团有限公司 | Method for recycling ferric oxide in converter steel slag |
| CN104841554A (en) * | 2015-06-04 | 2015-08-19 | 山东省建筑材料工业设计研究院 | Special RO-phase magnetic separator for steel slag micro powder |
| CN104841554B (en) * | 2015-06-04 | 2017-03-01 | 山东省建筑材料工业设计研究院 | A kind of special RO phase magnetic separator of slag micro powder |
| CN106542922A (en) * | 2015-09-16 | 2017-03-29 | 陈耀辉 | A kind of soil conditioner and its preparation technology of turf quantity of magnetism daughter element |
| CN108380360A (en) * | 2018-02-07 | 2018-08-10 | 西宁特殊钢股份有限公司 | A kind of high-quality steel slag iron fine powder production technology |
| CN109365106A (en) * | 2018-10-29 | 2019-02-22 | 酒泉钢铁(集团)有限责任公司 | A kind of stainless steel slag dry type magnetic separation device and technique |
| CN111185301A (en) * | 2020-01-10 | 2020-05-22 | 江苏梵爵科技有限公司 | Dry-type environment-friendly ore dressing system and ore dressing method |
| CN114871236A (en) * | 2022-03-23 | 2022-08-09 | 山东山科同创环境工程设计院有限公司 | System and method for roller-type grinding of ultrafine powder by using fine steel slag tailings |
| CN114871236B (en) * | 2022-03-23 | 2023-07-04 | 山东山科同创环境工程设计院有限公司 | System and method for grinding superfine powder by fine steel slag tailings roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100383260C (en) | 2008-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100383260C (en) | Process for producing steel slag iron fine powder | |
| CN109013051B (en) | Method and device for producing high-nickel alloy by coal-based direct reduction and magnetic separation | |
| CN101219413B (en) | Technique for manufacturing hyperpure iron extract | |
| CN109234486B (en) | Method and device for producing reduced iron by coal-based direct reduction roasting | |
| CN102527504A (en) | Magnetic ore dressing method | |
| CN106755650B (en) | Slag produces high activity steel-making slag powder and the technique of inert mineral product | |
| CN211678207U (en) | Steel slag recycling system | |
| CN111285405A (en) | Method for separating calcium ferrite and magnesium ferrite from steel slag magnetic separation tailings | |
| CN103586118A (en) | Embedded-type all-grain-size dry magnetic separation technology for closed recycle of iron-containing minerals in steel slag | |
| CN103433137A (en) | Breaking and separation integrated comprehensive recovery method of chrysotile tailings | |
| CN104785367B (en) | Mineral separation method for pre-extraction of concentrates from roasted iron ore | |
| CN103041904A (en) | Steel slag powder producing method employing roller press | |
| CN102189038A (en) | Preliminary separation process for ferromagnetic ore separation | |
| CN112010579A (en) | Production method of superfine steel slag powder | |
| CN101733191A (en) | Oredressing method for tantalum-niobium ore | |
| CN102641782A (en) | Beneficiation method | |
| WO2011147271A1 (en) | Process for preparing ultrafine steel slag micropowder | |
| CN107470016B (en) | A method of chemical industry iron powder is prepared by raw material of zinc kiln slag | |
| CN100577308C (en) | Belt-type double-magnetic track magnetic separator for obtianing fine iron powder by magnetic separation | |
| CN110606675A (en) | Vanadium-titanium slag superfine powder admixture and preparation method thereof | |
| CN203668008U (en) | Beta spodumene ultrafine powder selection device | |
| CN102492851A (en) | Method for smelting and extracting zinc tailings by recovery method | |
| CN102935404B (en) | Method for performing dry classification enrichment on V2O5 from vanadium-containing mineral | |
| KR100334295B1 (en) | Dry Purification Method for Removing Iron and Titanium Oxide from Kaoline | |
| CN110694787B (en) | Effective recovery process for associated niobium and tantalum in rare metal ore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINAN LUXIN NEW MATERIALS CO., LTD. Free format text: FORMER OWNER: BAODE CHARGING STOCK CO., LTD., JINAN Effective date: 20100720 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 250100 JINAN BAODE CHARGING COMPANY, GUODIAN TOWN, LICHENG DISTRICT, JINAN CITY, SHANDONG PROVINCE TO: 250109 SOUTHEAST OF GUODIAN TOWN GOVERNMENT, LICHENG DISTRICT, JINAN CITY, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100720 Address after: 250109, Shandong Province, Ji'nan province Zhen Guo Zhen government on the east side of the South Patentee after: Jinan Luxin New Materials Co., Ltd. Address before: Licheng District 250100 Shandong city of Ji'nan province Guo Dian Zhen Ji'nan Baode charge Ltd. Patentee before: Baode Charging Stock Co., Ltd., Jinan |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20140606 |