CN1108876C - Wet process for magnetic separation of steel slags - Google Patents
Wet process for magnetic separation of steel slags Download PDFInfo
- Publication number
- CN1108876C CN1108876C CN00116009A CN00116009A CN1108876C CN 1108876 C CN1108876 C CN 1108876C CN 00116009 A CN00116009 A CN 00116009A CN 00116009 A CN00116009 A CN 00116009A CN 1108876 C CN1108876 C CN 1108876C
- Authority
- CN
- China
- Prior art keywords
- steel
- slag
- iron powder
- magnetic separation
- powder
- 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.)
- Expired - Fee Related
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a method for the magnetic selection and the grading of steel slag with a wet method. Iron-rich slag after magnetic selection sieving, fine iron powder and mix materials of particle steel are put in a ball mill, iron slag is separated by the mutual impact of steel balls and the steel slag or impact among the steel slag, the high pressure water of the pressure of 2 to 3 kilograms is used for washing, and the impurities of the surface of scrap steel are washed. Through secondary magnetic selection, the fine iron powder, the particle steel, B-grade scrap steel and tailings are separated to sufficiently use materials. The present invention has the advantages that because the wet method is used for treatment, powder dust does not exist, and an environment can not be polluted. The iron content of treated B-grade scrap steel particles is improved more than 70% from 60%, fine iron powder in steel slag tailings is basically totally extracted, and the value of each ton of the fine iron powder is 220 yuan. Pure tailing powder is used for making bricks, the fine iron powder is used as raw materials of a pellet, and the method has good economic benefits and social benefits.
Description
Technical field
The present invention relates to slag treatment and comprehensive utilization environmental technology field, specifically a kind of wet process for magnetic separation of steel slags.
Background technology
It is at first slag to be carried out fragmentation that present slag is handled, through the magnetic separation screening big iron particle screening in the slag is come out then, and those granules and iron powder are all abandoned in ashes, take away and do the road or do brick, cause very big waste like this, make the steel slag utilization benefit low, and some discarded object pollute.
Summary of the invention
The present invention is an operation of slag comprehensive utilization, and purpose is the big iron particle that magnetic separation after the fragmentation is sieved out, little iron particle, and smart iron powder improves materials quality through this operation, no material is all reclaimed the method for the slag wet magnetic separation classification that effectively utilizes.
Wet process for magnetic separation of steel slags of the present invention is with the iron-riched slag after the magnetic separation screening, the compound of smart iron powder and particle steel, be placed on ball mill by the mutual impact of steel ball and slag or the impact between slag and the slag, scum is separated, wash out with the water under high pressure of 4-6 jin pressure.The impurity on steel scrap surface, again by secondary magnetic separation smart iron powder, particle steel, second class steel scrap, tailings separately, more than four kinds of purposes that material is had nothing in common with each other.Particle steel, second class steel are directly delivered to iron-smelter ironmaking; Smart iron powder is delivered to the operation of producing pellet and is removed to make pellet, and tailings is also sent to and done pavior brick, and building brick is made the best use of everything.
Wet process for magnetic separation of steel slags advantage of the present invention is that this treatment system is the supporting project of slag comprehensive exploitation; drop into little; effect is remarkable; from the environmental protection aspect; because wet-treating does not have dust, environment can not pollute, from product quality; bring up to more than 70% by 60% by the second class steel scrap particle iron-holder of handling; from utilization of resources aspect, the smart iron powder in the slag tailings is substantially all put forward, one ton of smart iron powder of every extraction is created 220 yuan of economic worths; and pure ground slag brickmaking; alleviate the weight of brick, improved the quality of brick, satisfied the demand in market; from economic benefit; 60 yuan of year 80000 tons of comprehensively measuring and calculatings of disposal ability creation economic benefits per ton can produce 4,800,000 yuan of economic benefits every year, and main effect is to carry out comprehensive exploitation to slag; this handles sheerly intermediate link; it is the first treatment system of iron content goods and materials, contains the iron ore lackey and has only by this treatment system, and smart iron powder pellets just has raw material; otherwise just do not reach the slag comprehensive exploitation, eliminate the purpose on slag mountain.
Description of drawings
Accompanying drawing is the wet process for magnetic separation of steel slags flow chart.
The specific embodiment
Rich iron charge slag with the magnetic separation screening, the compound of particle steel and smart iron powder is put into ball mill by the mutual impact of steel ball and slag or the impact between slag and the slag, scum is separated, high pressure water washing with 4-6 pressure, wash out the impurity on steel scrap surface, again by secondary magnetic separation smart iron powder, the particle steel, second class steel scrap, tailings are separately, its secondary magnetic separation is told smart iron powder for first order magnetic separation, ground slag, rich iron compound, second level magnetic separation is that rich iron compound is divided into tail, the particle steel, the second class steel scrap.More than four kinds of purposes that material is had nothing in common with each other.Particle steel, second class steel can directly be delivered to iron-smelter ironmaking; Smart iron powder is delivered to production pellet operation and is removed to make pellet, and tailings is sent to and done pavior brick, and building brick is made the best use of everything.
Claims (1)
- A kind of wet process for magnetic separation of steel slags, it is characterized in that the iron-riched slag after the magnetic separation screening, smart iron powder, the compound of particle steel, be placed in the ball mill by the mutual impact of steel ball and slag or the impact between slag and the slag, scum is separated, and the high pressure water washing with 4-6 jin pressure washes out the impurity on steel scrap surface, again by secondary magnetic separation smart iron powder, the particle steel, second class steel scrap, tailings are separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00116009A CN1108876C (en) | 2000-09-08 | 2000-09-08 | Wet process for magnetic separation of steel slags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00116009A CN1108876C (en) | 2000-09-08 | 2000-09-08 | Wet process for magnetic separation of steel slags |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1282633A CN1282633A (en) | 2001-02-07 |
| CN1108876C true CN1108876C (en) | 2003-05-21 |
Family
ID=4585440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00116009A Expired - Fee Related CN1108876C (en) | 2000-09-08 | 2000-09-08 | Wet process for magnetic separation of steel slags |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1108876C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534198A (en) * | 2010-12-11 | 2012-07-04 | 鞍山钢铁集团公司 | Method for pelletizing refined iron powder extracted from steel slag for converter steel making |
| CN102658237B (en) * | 2012-05-18 | 2014-03-26 | 北京科技大学 | Method for extraction of metal iron from steel tailings and comprehensive utilization of tail mud |
| CN110590210B (en) * | 2019-09-27 | 2022-04-12 | 张文涛 | Recycling method of smelting steel tailings and prepared non-steamed foamed concrete block |
| CN113304832B (en) * | 2021-07-09 | 2022-06-03 | 内蒙古高等级公路建设开发有限责任公司 | Steel slag washing ball-milling production and processing equipment and processing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5288201A (en) * | 1976-01-19 | 1977-07-23 | Nippon Steel Corp | Treatment of slag from steel manufacture |
| JPS6137930A (en) * | 1984-07-30 | 1986-02-22 | Nippon Jiryoku Senko Kk | Treatment of stainless slag |
| CN1082460A (en) * | 1992-08-05 | 1994-02-23 | 赣州有色冶金研究所 | A kind of technology that from the ferromanganese slag, reclaims ferromanganese |
| CN1089191A (en) * | 1993-04-12 | 1994-07-13 | 鞍山钢铁公司 | Magnetic separating, processing and recovery system for steel slag |
-
2000
- 2000-09-08 CN CN00116009A patent/CN1108876C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5288201A (en) * | 1976-01-19 | 1977-07-23 | Nippon Steel Corp | Treatment of slag from steel manufacture |
| JPS6137930A (en) * | 1984-07-30 | 1986-02-22 | Nippon Jiryoku Senko Kk | Treatment of stainless slag |
| CN1082460A (en) * | 1992-08-05 | 1994-02-23 | 赣州有色冶金研究所 | A kind of technology that from the ferromanganese slag, reclaims ferromanganese |
| CN1089191A (en) * | 1993-04-12 | 1994-07-13 | 鞍山钢铁公司 | Magnetic separating, processing and recovery system for steel slag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1282633A (en) | 2001-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101654717B (en) | Comprehensive treatment method of blast furnace dedusting ash | |
| CN102363218B (en) | Method for producing copper-powder-containing iron by reducing copper-containing furnace cinders directly | |
| CN103060493B (en) | Steel slag water washing ball milling manufacture processing craft | |
| CN102764690B (en) | Separation method for treating low-grade refractory zinc lead oxide ores | |
| CN101716553A (en) | Kiln slag processing technology of zinc volatilizing kiln | |
| CN108380360B (en) | Production process of steel slag and iron fine powder | |
| CN102251117B (en) | Method for extracting rare earth component from crystal waste slag | |
| CN101491789A (en) | Beneficiation process of mixed dregs using three copper smelting methods of flash smelting furnace, revolving furnace and depletion electric furnace | |
| CN101229526A (en) | Method of using blast furnace scrap iron in slag to prepare puron materiel | |
| CN111686927B (en) | Resource utilization method of tungsten ore waste rock and tungsten tailings | |
| CN103537366A (en) | Method for recycling high grade iron from blast furnace dry slag | |
| CN109092844B (en) | Steel slag multistage treatment method | |
| CN102828039A (en) | Recycling method of slag of copper melting pool smelting furnace | |
| CN102220479A (en) | Beneficiation method for comprehensive recovery of valuable metals from sulfuric acid residues through chlorination and segregation | |
| CN108187880B (en) | A kind of slag advanced treatment process | |
| CN112264172A (en) | Process for producing iron ore concentrate by grading, dry grinding and dry separation of low-grade magnetite | |
| CN101264464B (en) | Purification technique of steel scoria magnetic separation product | |
| CN104084307B (en) | The wet magnetic separation technique of iron is reclaimed in a kind of iron-containing waste | |
| CN105195427A (en) | Iron ore dry separation technology based on concentrated-phase gas-solid fluidized bed | |
| CN1108876C (en) | Wet process for magnetic separation of steel slags | |
| CN202516839U (en) | Furnace slag treatment device | |
| CN106076506A (en) | A kind of process technique of slag deep processing | |
| CN102492851A (en) | Method for smelting and extracting zinc tailings by recovery method | |
| CN112371305B (en) | Mixed soil mixing-grinding magnetic separation process | |
| CN113877718A (en) | Beneficiation method for recovering high-grade iron ore concentrate from iron-containing waste rock of refuse dump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030521 Termination date: 20190908 |