CN102899452A - Application of composite manganese ore powder in replacement of manganese alloy to carry out direct steelmaking - Google Patents
Application of composite manganese ore powder in replacement of manganese alloy to carry out direct steelmaking Download PDFInfo
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- CN102899452A CN102899452A CN2011102083452A CN201110208345A CN102899452A CN 102899452 A CN102899452 A CN 102899452A CN 2011102083452 A CN2011102083452 A CN 2011102083452A CN 201110208345 A CN201110208345 A CN 201110208345A CN 102899452 A CN102899452 A CN 102899452A
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- manganese
- ore powder
- manganese ore
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Abstract
Composite manganese ore powder belongs to metallurgical industry, and is a novel metallurgy material capable of replacing a manganese alloy to be directly used for steelmaking. According to the present invention, original manganese ore is crushed to obtain manganese ore powder with a certain size, and the manganese ore powder is added with a reducing agent and a catalyst according to a certain ratio to obtain a novel product composite manganese ore powder, wherein the composite manganese ore powder can replace a manganese alloy and can be directly used for steelmaking so as to eliminate a ferroalloy smelting high energy consumption process, reduce a pollution source, reduce energy source consumption, reduce environmental pollution, reduce steel cost, and provide high economic benefits and high social benefits. In addition, the manganese alloy content in the ferroalloy is high, the manganese is easily reduced, the high temperature molten steel is adopted, and the composite manganese ore powder is added to carry out a rapid reduction reaction, such that the vast majority of the manganese is reduced, wherein a good application effect is provided on a refinement furnace, and the same manganese recovery rate as the manganese alloy is provided. The application of the present invention belongs to a low carbon technology, and is a metallurgy project with a characteristic of economic transformation.
Description
1, technical field
Iron alloy and iron and steel belong to metallurgy industry, and its theory comes from metallurgy principle, and the mode of production is close.Manganese is indispensable alloying element in the steel, is to be added in the steel with manganese alloy (ferromanganese and manganese are iron alloy), and manganese alloy is a kind of iron alloy of consumption maximum, is high energy consumption, and the serious product of environmental pollution is national restricted product.Replacing manganese alloy to be directly used in steel-making with compound manganese ore powder is that " low-carbon technology " is " economic transition " project.
2, background technology
Manganese alloy be with the electricity and coke as the energy, it is iron alloy and ferromanganese that manganese ore is smelted into manganese through mining and metallurgy stove (blast furnace), is high energy gamma source consumption, the product that environmental pollution is serious.Utilize the technical characteristic of manganese, (oxidisability a little less than, easily be reduced) is crushed to certain particle size to the manganese ore powder.Allocate reductive agent into and become compound manganese ore powder to borrow molten steel rapid melting and the reduction of high temperature with catalyst combination, replace manganese alloy.Compound manganese ore powder production technique is simple, and the carbonaceous material consumption is few, and cost is low.Replace manganese alloy with compound manganese ore powder, reduce energy consumption, reduce by source of pollution, reduce the cost of steel, development and application values is arranged.
3, summary of the invention
Reduction and the rate of recovery stable, that improve manganese for accelerating manganese are crushed to manganese ore below-100 orders, by weight proportion; Former manganese ore powder: 81-92%: reductive agent: 5-15%; Catalyzer: 3-4%.(this proportioning is not that one deck is constant, aligns according to former Manganese Ore Grade).Be combined into compound manganese ore powder through stirring and evenly mixing.Compound manganese ore powder is the same with manganese alloy to add during alloying outside stove, and reductive agent, catalyzer and the Mn oxide in the compound manganese ore powder at this moment can make it melt fast and the fast restore of manganese by the molten steel of high temperature.Use at refining furnace, manganese is controlled at 0,40% in the steel, does not need to increase reductor, does not prolong refining time, and the rate of recovery of compound manganese ore powder and manganese alloy manganese is suitable.Make the cost of steel.Energy consumption is low, is " low-carbon technology ".
4, embodiment
Press Manganese Ore Grade, with part by weight, allocate manganese ore powder, reductive agent, catalyzer, granularity into below-100 orders.Be combined into through stirring compound manganese ore powder after drying moisture content less than 1%, add (old-fashioned electric arc furnace adds when scratching clean oxidation sludge) when converter and the outer alloying of inclined to one side furnace bottom arc furnace, compound manganese ore powder is being met high temperature chemical reaction is being occured fast, and most manganese are reduced and enter in the molten steel.Best results is for electric arc furnace and converter, joins refining furnace and the old-fashioned electric arc furnace that reduction period is arranged behind the stove.Slag making enters refining period, and along with the carrying out of refining period (reduction period), the manganese oxide in the slag is reduced gradually and enters in the steel, reaches whole reduction.The rate of recovery of compound manganese ore powder manganese is than mining and metallurgy stove smelting manganese alloy, and the rate of recovery of manganese is also high.Reduce the cost of steel, good economic benefit is arranged.The more important thing is that to get rid of this road environmental pollution of ferroalloy smelting serious, the operation that energy consumption is high.Be " low-carbon technology ", economic benefit is high, and social benefit is large.Can become metallurgy " economic transition " project.After this project Application and Development, can obtain Rapid Popularization, can be used for steel-making to other kind element mineral matter again simultaneously, play very large pushing effect.
Claims (8)
1. one kind replaces manganese alloy (ferromanganese and manganese are iron alloy), is directly used in the type material " compound manganese ore powder " of steel-making, and it is characterized in that: each composition weight percent is: former manganese ore powder 81-92%; Reductive agent: 5-15%; Catalyzer: 3-4%.
2. with below above-mentioned various raw material crushing to one 100 orders.
With mixer with the material mixing for preparing.
4. moisture content is less than 1%.
5. the proportioning of the various materials of claim 1 " compound manganese ore powder " is along with former Manganese Ore Grade difference is aligned.
6. reductive agent can be adjusted according to steel grade is different with catalyzer.
7. claim 1 " compound manganese ore powder " is carried out prereduction at 1050～1200C, makes value Mn become at a low price manganese, is used for direct steelmaking, better effects if.
8. Chemical Composition requires to contain the elements such as molybdenum, nickel, chromium, tungsten in the steel grade, and the mineral substance of these alloying elements after processing with aforesaid method, can be directly used in steel-making.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102083452A CN102899452A (en) | 2011-07-25 | 2011-07-25 | Application of composite manganese ore powder in replacement of manganese alloy to carry out direct steelmaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102083452A CN102899452A (en) | 2011-07-25 | 2011-07-25 | Application of composite manganese ore powder in replacement of manganese alloy to carry out direct steelmaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102899452A true CN102899452A (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102083452A Pending CN102899452A (en) | 2011-07-25 | 2011-07-25 | Application of composite manganese ore powder in replacement of manganese alloy to carry out direct steelmaking |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411191A (en) * | 2020-05-29 | 2020-07-14 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for directly alloying manganese ore in semisteel steelmaking converter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057488A (en) * | 1990-06-15 | 1992-01-01 | 山东省冶金设计研究所 | The electric furnace steelmaking method of self-contained manganese ore reduction manganese |
| CN1470667A (en) * | 2003-07-04 | 2004-01-28 | 北京科技大学 | Manganese oxide direct-alloying steel making process |
| CN1584089A (en) * | 2004-06-16 | 2005-02-23 | 吴光亮 | Mangan-alloy production |
-
2011
- 2011-07-25 CN CN2011102083452A patent/CN102899452A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057488A (en) * | 1990-06-15 | 1992-01-01 | 山东省冶金设计研究所 | The electric furnace steelmaking method of self-contained manganese ore reduction manganese |
| CN1470667A (en) * | 2003-07-04 | 2004-01-28 | 北京科技大学 | Manganese oxide direct-alloying steel making process |
| CN1584089A (en) * | 2004-06-16 | 2005-02-23 | 吴光亮 | Mangan-alloy production |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411191A (en) * | 2020-05-29 | 2020-07-14 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for directly alloying manganese ore in semisteel steelmaking converter |
| CN111411191B (en) * | 2020-05-29 | 2022-01-28 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for directly alloying manganese ore in semisteel steelmaking converter |
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Owner name: WANG YI WANG FENG Effective date: 20130912 |
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| C10 | Entry into substantive examination | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20130912 Address after: 150040 Heilongjiang Province, Harbin city Xiangfang district since the first Street No. 32 Applicant after: Wang Jinzhong Applicant after: Wang Yi Applicant after: Wang Feng Address before: 150040 Heilongjiang Province, Harbin city Xiangfang district since the first Street No. 32 Applicant before: Wang Jinzhong |
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| DD01 | Delivery of document by public notice |
Addressee: Wang Jinzhong Document name: Notification of an Office Action |
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| DD01 | Delivery of document by public notice |
Addressee: Wang Jinzhong Document name: Notification that Application Deemed to be Withdrawn |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130130 |