CN1415766A - Composite ball rolls of manganese and its preparation method - Google Patents
Composite ball rolls of manganese and its preparation method Download PDFInfo
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- CN1415766A CN1415766A CN 02139686 CN02139686A CN1415766A CN 1415766 A CN1415766 A CN 1415766A CN 02139686 CN02139686 CN 02139686 CN 02139686 A CN02139686 A CN 02139686A CN 1415766 A CN1415766 A CN 1415766A
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Abstract
A composite manganese sphere for alloying molten steel is prepared from Mn ore, reducer, nano reaction promoter, basicity and smelting point regulator, adhesive and additive through grinding, proportional mixing, adding adhesive, sphericizing, baking and natural cooling. Its advantages are high recovery rate of Mn, and high desulfurizing and deoxidizing effect.
Description
Technical field the present invention relates to a kind of Multifunction alloy material and production method thereof that is applied to carry out in the STEELMAKING PRODUCTION process alloying of manganese.
Background technology manganese (Mn) is indispensable element in the steel, and it is one of main alloy element in the steel.The material that carries out alloying of manganese at present in steel-making (changeing steel or electric furnace) production process mainly is that manganese is iron alloy.Manganese is that iron alloy is formed by blast furnace or electrosmelting through sintering then by manganese ore.With this explained hereafter manganese is iron alloy, and environmental pollution is bigger in whole process of production, and energy consumption and production cost are higher.Along with the development of steel-smelting technology, occurred adopting manganese ore directly in electric furnace or converter stove, to carry out the production method of alloying of manganese; But problem is: alloying of manganese has increased the tap to tap time of Electric furnace steel making in electric furnace, and the rate of recovery instability of manganese; The less-slag melting technology that alloying of manganese must carry out " three take off " pre-treatment or employing " duplex converter " to converter steelmaking earlier with molten iron in the converter stove, facility investment is big, technical process is long, apply difficulty, therefore how to develop the new problem that the manganese alloy material that makes new advances is the steel-making engineering technical personnel.
Summary of the invention the object of the present invention is to provide a kind of can be applicable to Electric furnace steel making can be applicable to not only converter steelmaking and do not change not only existing process for making, with low cost, manganese recovery ratio stable, easy and simple to handle and can to molten steel carry out alloying of manganese but also can refined molten steel etc. multi-functional manganese composite pellets; For this reason, the present invention also provides a kind of method of making the manganese composite pellet.
For achieving the above object, the technical solution used in the present invention is: will contain manganic concerntrate or raw material such as manganese sinter or rich manganese slag and reductive agent, nanometer reaction promotor, soda acid and fusing point conditioning agent and the additive thereof of manganese raw ore after selected and grind the full and uniform manganese composite pellets that are mixed and made in back.
In order to obtain aforesaid manganese composite pellet, the method that the present invention produces the manganese composite pellet comprises following several steps: with various starting material, grind to form fine powder respectively as selected manganese raw ore or manganese sinter or rich manganese slag, reductive agent, nanometer reaction promotor, acid-base modifier and fusing point conditioning agent and additive thereof, mixing the back then by a certain percentage mechanical-moulded is bead or other shape, packed for standby use after the drying.
The manganese composite pellet that adopts as above technical scheme to provide is used for the manganese element alloying of process for making, its major advantage shows: the manganese composite pellet is raw material with the manganese ore, having saved manganese is the production link of iron alloy, alleviated environmental pollution greatly, reduce production costs 20～30%, and reduce energy consumption more than 40%.This manganese composite pellet can also carry out refining (as deoxidation of molten steel, desulfurization, go to be mingled with etc.) to molten steel when molten steel is carried out alloying of manganese simultaneously.With regard to the manganese element alloying of steel, with the manganese composite pellet be that iron alloy is compared with manganese, steel per ton reduces cost about 8～10 yuan.The employed all raw material of this manganese composite pellet all grinds very carefully, moulding then neither can in use produce airborne dust, has increased reaction area again, help improving metallurgical reaction speed and guarantee that manganese is reduced fully from oxide compound, thereby stablize the rate of recovery of manganese.
Description of drawings Fig. 1 is the technological process of production synoptic diagram that is used to produce a kind of manganese composite pellet of the present invention, also is specification digest accompanying drawing of the present invention
Embodiment is described in further detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Described manganese composite pellet mainly is made up of manganese ore, reductive agent, nanometer reaction promotor, soda acid and fusing point conditioning agent, binding agent, additive.Wherein manganese ore is manganese raw ore (or choosing back manganic concerntrate) or manganese sinter or rich manganese slag; Reductive agent is coke, graphite, silicon carbide, carbide of calcium, silico-calcium, ferrosilicon, elemental metals (as aluminium, calcium etc.); The nanometer reaction promotor is nano powders such as aluminium, carbon, manganese oxide; Acid-base modifier is Wingdale, lime, rhombspar, silica; The fusing point conditioning agent is fluorite, aluminium vanadine, an alkali metal salt etc.; Binding agent is water glass, tar, resin etc.; Additive is for containing manganese metal alloy material.By weight, their shared separately weight ratio scopes are: manganese ore is 50～90%, reductive agent 5～15%, nanometer reaction promotor are 1～5%, acid-base modifier is 3～10%, the fusing point conditioning agent is 2～5%, binding agent is 5～10%, and additive is an amount of.
As above various thick starting material are ground to form earlier fine powder (its granularity is 80～200 orders) respectively, then manganese ore, reductive agent, nanometer reaction promotor, acid-base modifier, fusing point conditioning agent are placed in the container by the as above powder amount of weight ratio, after mixing and stirring, adding binding agent continues to stir until evenly, be shaped to pelletizing or other shape then, toast in roaster, temperature is controlled at 50～300 ℃, naturally cooling, packed for standby use are taken out in the oven dry back.
Manganese composite pellet with above-mentioned production technique is made joins the manganese composite pellet in the ladle during application in tapping process, stir under the use the rapid efflorescence of manganese composite pellet, refinement, and fusing rapidly in the impact of liquid steel temperature (＞1600 ℃) and steel flow.Under reductive agent and the effect of nanometer reaction promotor, rapidly the Mn oxide in the manganese ore is reduced into manganese metal and oxide compound (as CO, Al
2O
3, SiO
2Deng), these oxide compounds combine with acid-base modifier in the manganese composite pellet form stable mixture and on float to the slag blanket of molten steel surface, and manganese metal directly enters in the molten steel molten steel is carried out alloying of manganese.Meanwhile, because the reductive agent in the manganese composite pellet can also carry out deep deoxidation and desulfurization to molten steel, the composite slag that forms of the slag that generates because of the slag that disposes in the composite pellet and manganese ore reduction has the effect of inclusion in the fabulous absorption molten steel again.When using on the 60t electric furnace, the rate of recovery of manganese is stabilized in more than 90%, and desulfurization degree reaches 30～40%, and inclusion reduces 20～30% in the molten steel, and ton steel cost reduces 10-12 unit.
In addition to the implementation, other embodiment are:
Embodiment 1 (being weight percentage)
Manganese ore: 70%
Reductive agent: 7%
Nanometer reaction promotor: 3%
Acid-base modifier: 4%
Fusing point conditioning agent: 5%
Tackiness agent: 8%
Additive: an amount of
Its production method is with identical described in the specification sheets, this no longer huge legendary turtle state.
Embodiment 2
Its component is identical with embodiment 1, and the per-cent of the shared gross weight of each component is as follows:
Manganese ore: 56%
Reductive agent: 13%
Nanometer reaction promotor: 4%
Acid-base modifier: 6%
Fusing point conditioning agent: 4%
Tackiness agent: 10%
Additive: an amount of
As above starting material are pulverized, use with production method described in the specification sheets and make the nanostructured manganese composite pellet.
Embodiment 3: its component is identical with embodiment 1 or embodiment 2, and just the shared total weight percent of each component is as follows:
Manganese ore: 81%
Reductive agent: 5%
Nanometer reaction promotor: 2%
Acid-base modifier: 4%
Fusing point conditioning agent: 3%
Tackiness agent: 5%
Additive: an amount of
Its production method is described identical with embodiment 1 or embodiment 2.
Claims (2)
1, a kind of manganese composite pellet, it is made up of manganese ore, reductive agent, nanometer reaction promotor, soda acid and fusing point conditioning agent, binding agent, additive, it is characterized in that manganese ore accounts for 50～90% of gross weight, reductive agent accounts for 5～15% of gross weight, and the nanometer reaction promotor accounts for 1～5% of gross weight, and acid-base modifier accounts for 3～10% of gross weight, the fusing point conditioning agent accounts for 2～5% of gross weight, binding agent accounts for 5～12% of gross weight, and additive is an amount of
Manganese ore is: manganese raw ore, manganese sinter or rich manganese slag;
Reductive agent is: coke, graphite, silicon carbide, carbide of calcium, silico-calcium, ferrosilicon, elemental metals;
The nanometer reaction promotor is: aluminium, carbon, manganese oxide nano powder;
Acid-base modifier is: Wingdale, lime, rhombspar, silica;
The fusing point conditioning agent is: fluorite, aluminium vanadine, an alkali metal salt;
Binding agent is: water glass, tar, resin;
Additive is: contain manganese metal alloy material.
2, a kind of production method of manganese composite pellet, it is characterized in that manganese ore, reductive agent, acid-base modifier, fusing point conditioning agent are ground to form 80～200 purpose fine powders respectively, add the nanometer reaction promotor, mix stirs by weight percentage, adds binding agent again and stirs, be shaped to pelletizing, toast under 50～300 ℃ of temperature, oven dry is taken out, naturally cooling, packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 02139686 CN1190507C (en) | 2002-10-10 | 2002-10-10 | Composite ball rolls of manganese and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02139686 CN1190507C (en) | 2002-10-10 | 2002-10-10 | Composite ball rolls of manganese and its preparation method |
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| CN1415766A true CN1415766A (en) | 2003-05-07 |
| CN1190507C CN1190507C (en) | 2005-02-23 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351398C (en) * | 2005-01-07 | 2007-11-28 | 马鞍山中冶钢铁冶金科技实业有限公司 | Highly effective metallurgical complexing agent for convertor (electric oven) and its preparation method and uses |
| CN100355910C (en) * | 2005-12-16 | 2007-12-19 | 青岛森田金属有限公司 | Composite carbon containing pellet |
| CN101899604A (en) * | 2010-08-03 | 2010-12-01 | 武汉科技大学 | Direct alloying steelmaking process for manganese oxide composite briquettes used for re-blowing revolving furnace |
| CN101736127B (en) * | 2008-11-04 | 2011-08-03 | 西峡县合力冶金辅料有限公司 | Preparation method of silicon carbide press balls |
| CN102491421A (en) * | 2011-11-18 | 2012-06-13 | 湖北恒昊科技有限公司 | Nesting doll-shaped manganese oxide nanocrystalline grain composite particle and preparation method thereof |
| CN102758066A (en) * | 2012-06-26 | 2012-10-31 | 河北钢铁股份有限公司唐山分公司 | Method for alloying manganese ore in LF (ladle furnace) |
| CN103014327A (en) * | 2011-09-21 | 2013-04-03 | 宝山钢铁股份有限公司 | Chrome-manganese ore composite pellets for argon oxygen refinement furnace, and preparation method thereof |
| CN104109736A (en) * | 2014-06-20 | 2014-10-22 | 宝钢不锈钢有限公司 | 304 stainless steel smelting method by AOD (argon oxygen decarburization) Converter |
| CN105112763A (en) * | 2015-09-14 | 2015-12-02 | 北京科技大学 | Direct iron, carbon and manganese alloying method taking ore as raw material |
| CN106755983A (en) * | 2016-12-21 | 2017-05-31 | 钢铁研究总院 | A kind of manganese oxide and molybdenum oxide mixture pelletizing and its application method |
| CN109055665A (en) * | 2018-08-08 | 2018-12-21 | 鞍钢股份有限公司 | A kind of compound dephosphorization method of Mn series alloy |
| CN110218883A (en) * | 2019-06-24 | 2019-09-10 | 内蒙古普源铁合金有限责任公司 | A kind of method of smelting of silicomanganese |
| CN112029937A (en) * | 2020-08-21 | 2020-12-04 | 中国恩菲工程技术有限公司 | Comprehensive recycling and disposal process and equipment for electrolytic manganese slag |
| CN112853042A (en) * | 2021-01-06 | 2021-05-28 | 鞍钢股份有限公司 | Method for increasing manganese in high manganese steel smelting process |
-
2002
- 2002-10-10 CN CN 02139686 patent/CN1190507C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351398C (en) * | 2005-01-07 | 2007-11-28 | 马鞍山中冶钢铁冶金科技实业有限公司 | Highly effective metallurgical complexing agent for convertor (electric oven) and its preparation method and uses |
| CN100355910C (en) * | 2005-12-16 | 2007-12-19 | 青岛森田金属有限公司 | Composite carbon containing pellet |
| CN101736127B (en) * | 2008-11-04 | 2011-08-03 | 西峡县合力冶金辅料有限公司 | Preparation method of silicon carbide press balls |
| CN101899604A (en) * | 2010-08-03 | 2010-12-01 | 武汉科技大学 | Direct alloying steelmaking process for manganese oxide composite briquettes used for re-blowing revolving furnace |
| CN101899604B (en) * | 2010-08-03 | 2012-04-04 | 武汉科技大学 | Direct alloying steelmaking process for manganese oxide composite briquettes used for re-blowing revolving furnace |
| CN103014327B (en) * | 2011-09-21 | 2015-03-25 | 宝山钢铁股份有限公司 | Chrome-manganese ore composite pellets for argon oxygen refinement furnace, and preparation method thereof |
| CN103014327A (en) * | 2011-09-21 | 2013-04-03 | 宝山钢铁股份有限公司 | Chrome-manganese ore composite pellets for argon oxygen refinement furnace, and preparation method thereof |
| CN102491421A (en) * | 2011-11-18 | 2012-06-13 | 湖北恒昊科技有限公司 | Nesting doll-shaped manganese oxide nanocrystalline grain composite particle and preparation method thereof |
| CN102758066A (en) * | 2012-06-26 | 2012-10-31 | 河北钢铁股份有限公司唐山分公司 | Method for alloying manganese ore in LF (ladle furnace) |
| CN104109736A (en) * | 2014-06-20 | 2014-10-22 | 宝钢不锈钢有限公司 | 304 stainless steel smelting method by AOD (argon oxygen decarburization) Converter |
| CN104109736B (en) * | 2014-06-20 | 2018-05-04 | 宝钢不锈钢有限公司 | A kind of method of 304 stainless steel of AOD converter smeltings |
| CN105112763A (en) * | 2015-09-14 | 2015-12-02 | 北京科技大学 | Direct iron, carbon and manganese alloying method taking ore as raw material |
| CN106755983A (en) * | 2016-12-21 | 2017-05-31 | 钢铁研究总院 | A kind of manganese oxide and molybdenum oxide mixture pelletizing and its application method |
| CN106755983B (en) * | 2016-12-21 | 2018-05-29 | 钢铁研究总院 | A kind of manganese oxide and molybdenum oxide mixture pelletizing and its application method |
| CN109055665A (en) * | 2018-08-08 | 2018-12-21 | 鞍钢股份有限公司 | A kind of compound dephosphorization method of Mn series alloy |
| CN110218883A (en) * | 2019-06-24 | 2019-09-10 | 内蒙古普源铁合金有限责任公司 | A kind of method of smelting of silicomanganese |
| CN112029937A (en) * | 2020-08-21 | 2020-12-04 | 中国恩菲工程技术有限公司 | Comprehensive recycling and disposal process and equipment for electrolytic manganese slag |
| CN112853042A (en) * | 2021-01-06 | 2021-05-28 | 鞍钢股份有限公司 | Method for increasing manganese in high manganese steel smelting process |
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| Publication number | Publication date |
|---|---|
| CN1190507C (en) | 2005-02-23 |
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