CN105087904A - Iron powder tailing treatment technology - Google Patents
Iron powder tailing treatment technology Download PDFInfo
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- CN105087904A CN105087904A CN201510631643.0A CN201510631643A CN105087904A CN 105087904 A CN105087904 A CN 105087904A CN 201510631643 A CN201510631643 A CN 201510631643A CN 105087904 A CN105087904 A CN 105087904A
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- CN
- China
- Prior art keywords
- iron powder
- magnetic separation
- tailing
- iron
- tailings
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- 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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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an iron powder tailing treatment technology in the technical field of abandoned resource reutilization. The technology comprises the following steps that firstly, online magnetic separation is carried out on iron powder tailings before the iron powder tailings enter a tailing pool; then, enrichment materials obtained through magnetic separation are used as pelletizing materials, and the enrichment materials are returned to a blast furnace for iron making after ball pressing and sintering; and finally the tailings generated through magnetic separation are used for producing cement or mortar. The iron powder tailing treatment technology has the beneficial effects that magnetic separation is carried out on the iron powder tailings, the enrichment materials obtained through magnetic separation can be directly used for ball pressing, and the defects that the original tailing total-iron content is insufficient, viscosity is large, and scattering and even mixing are not easy are overcome; and in addition, the tailings generated in the production process can be used for producing cement or manufacturing mortar or other else, new tailings are not generated in the whole process, and resources are fully utilized.
Description
Technical field
The present invention relates to waste resource reutilization technology field, particularly relate to a kind for the treatment of process processing the iron powder mine tailing produced in converter mud production reduction iron powder process.
Background technology
Adopt in the process of converter mud production reduction iron powder, a large amount of mine tailings will be produced, this mine tailing metal Ferrum content is about 11%, all iron content is about 40%, and it is large to have viscosity, the feature of easy bonding, iron powder factory is owing to being subject to place restriction simultaneously, need to carry out press filtration to mine tailing in the production process of iron powder, then mail to pelletizing plant's ball, but this mine tailing metallic iron and all iron content fail to reach pelletizing index request, need itself and other high-grade iron ore concentrate to carry out pressure ball after mixed ingredients, enter sintering, return blast furnace ironmaking again, because this mine tailing viscosity is large, extremely not easily disperse after causing press filtration, pelletizing intractability in the treating processes of joining ore deposit is very large, cost is higher, do not reach the object of waste resource recycling, even processing cost is also greater than the income of creation sometimes.
Summary of the invention
For the treatment process overcoming existing iron powder mine tailing is more loaded down with trivial details, the more high deficiency of cost, technical problem to be solved by this invention is: provide a kind of processing cost lower, and operation is simple, and the treatment process that resource is fully used.
The technical solution adopted for the present invention to solve the technical problems is:
Iron powder tailing treatment technology, comprises the following steps:
A, before iron powder mine tailing enters tailing pond, online magnetic separation is carried out to it;
B, the enrichment material that magneticly elects is used as pelletizing batching, after pressure ball, sintering, returns blast furnace ironmaking;
C, by magnetic separation produce mine tailing for the production of cement or mortar.
Further, screen according to the index request of pellet formation to enrichment material all iron content during magnetic separation.
Further, all iron content of the enrichment material magneticly elected should more than 65%.
Further, all iron content of the mine tailing of magnetic separation generation should lower than 30%.
The invention has the beneficial effects as follows: by carrying out magnetic separation to iron powder mine tailing, the enrichment material magneticly elected can be directly used in pressure ball, avoid that original mine tailing all iron content is inadequate, viscosity disperse greatly, not easily, the not easily shortcoming such as mixing, the mine tailing produced in this production process in addition, may be used for producing cement or making mortar etc., in whole process, do not produce new tailings, resource is fully used.
Embodiment
Iron powder tailing treatment technology, comprises the following steps:
A, before iron powder mine tailing enters tailing pond, online magnetic separation is carried out to it;
B, the enrichment material that magneticly elects is used as pelletizing batching, after pressure ball, sintering, returns blast furnace ironmaking;
C, by magnetic separation produce mine tailing for the production of cement or mortar.
The process of original technique to iron powder mine tailing is directly transported to pelletizing plant's pelletizing, but because this mine tailing cohesiveness is strong, add place restriction, the long ball processed of pelletizing is moved again to after needing that press filtration process is carried out to it, the now dry and hard one-tenth block of mine tailing, because mine tailing all iron content does not reach the standard of ball processed, carries out proportioning use with other ore deposit after also needing to be added water-dispersion again, deal with very loaded down with trivial details, result of use neither be fine.Improvements of the present invention are first to carry out magnetic separation to mine tailing before iron powder mine tailing produces pelletizing, directly pelletizing is carried out again after magneticly electing the enrichment material that can reach all iron content needed for pelletizing, just the trouble of follow-up mixing material is avoided, the mine tailing that magnetic separation simultaneously produces may be used for producing cement or making mortar, there is no the waste of material, also do not produce secondary pollution, waste resource is fully used.
Should screen the index request of all iron content according to pellet formation process during magnetic separation, make the enrichment material selected to be directly used in pellet formation, other iron ore concentrate need not be added.
Practical production experience through after a while draws, when all iron content of the enrichment material magneticly elected is more than 65%, the pellet quality that pelletizing obtains is better, can better be used for sintering and ironmaking, and processing cost is also relative more reasonable with the income of creation.
In order to avoid the waste of resource, all iron content of the mine tailing that magnetic separation produces lower than 30%, if the mine tailing after magnetic separation is used further to ironmaking, should transform cost higher, and is good batching for the production of cement or making mortar, it can be made to be fully utilized.
Iron powder mine tailing is separated by the mode of magnetic separation by the present invention, be used separately as pelletizing material and mortar ingredient, utilize the method for physics that iron powder mine tailing is fully used, there is no secondary pollution, there is no the wasting of resources, full iron utilization benefit inside iron powder mine tailing is maximized, greatly improves the comprehensive utilization value of iron powder mine tailing.
Claims (4)
1. iron powder tailing treatment technology, is characterized in that comprising the following steps:
A, before iron powder mine tailing enters tailing pond, online magnetic separation is carried out to it;
B, the enrichment material that magneticly elects is used as pelletizing batching, after pressure ball, sintering, returns blast furnace ironmaking;
C, by magnetic separation produce mine tailing for the production of cement or mortar.
2. iron powder tailing treatment technology as claimed in claim 1, is characterized in that: screen according to the index request of pellet formation to enrichment material all iron content during magnetic separation.
3. iron powder tailing treatment technology as claimed in claim 1, is characterized in that: all iron content of the enrichment material magneticly elected should more than 65%.
4. iron powder tailing treatment technology as claimed in claim 1, is characterized in that: all iron content of the mine tailing that magnetic separation produces should lower than 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510631643.0A CN105087904A (en) | 2015-09-29 | 2015-09-29 | Iron powder tailing treatment technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510631643.0A CN105087904A (en) | 2015-09-29 | 2015-09-29 | Iron powder tailing treatment technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105087904A true CN105087904A (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510631643.0A Pending CN105087904A (en) | 2015-09-29 | 2015-09-29 | Iron powder tailing treatment technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN105087904A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339660A (en) * | 2017-01-21 | 2018-07-31 | 海南科矿建筑材料有限公司 | A kind of recovery method of iron tailings |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4053301A (en) * | 1975-10-14 | 1977-10-11 | Hazen Research, Inc. | Process for the direct production of steel |
| CN1057213A (en) * | 1990-06-09 | 1991-12-25 | 冶金部马鞍山钢铁设计研究院 | Process for dressing iron from low-rank iron pyrites roasted slag |
| CN1282635A (en) * | 2000-09-08 | 2001-02-07 | 武汉冶金渣环保工程有限责任公司 | Comprehensive utilization of steel slags |
| CN102061345A (en) * | 2010-11-28 | 2011-05-18 | 上海大学 | Comprehensive treatment method for recycling ferrous metallurgical slag |
-
2015
- 2015-09-29 CN CN201510631643.0A patent/CN105087904A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4053301A (en) * | 1975-10-14 | 1977-10-11 | Hazen Research, Inc. | Process for the direct production of steel |
| CN1057213A (en) * | 1990-06-09 | 1991-12-25 | 冶金部马鞍山钢铁设计研究院 | Process for dressing iron from low-rank iron pyrites roasted slag |
| CN1282635A (en) * | 2000-09-08 | 2001-02-07 | 武汉冶金渣环保工程有限责任公司 | Comprehensive utilization of steel slags |
| CN102061345A (en) * | 2010-11-28 | 2011-05-18 | 上海大学 | Comprehensive treatment method for recycling ferrous metallurgical slag |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339660A (en) * | 2017-01-21 | 2018-07-31 | 海南科矿建筑材料有限公司 | A kind of recovery method of iron tailings |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151125 |
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| RJ01 | Rejection of invention patent application after publication |