CN101560621B - Method for producing manganese alloy - Google Patents
Method for producing manganese alloy Download PDFInfo
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- CN101560621B CN101560621B CN 200910084505 CN200910084505A CN101560621B CN 101560621 B CN101560621 B CN 101560621B CN 200910084505 CN200910084505 CN 200910084505 CN 200910084505 A CN200910084505 A CN 200910084505A CN 101560621 B CN101560621 B CN 101560621B
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Abstract
The invention relates to a method for producing a manganese alloy, which belongs to the technical field of ferroalloy production. The process comprises the following steps: adopting powdered or granular electrolytic manganese and pure iron powder or pure scrap iron as raw materials, wherein the electrolytic manganese accounts for 60 to 100 weight percent and the balance is Fe; adding a bonding agent of which the weight is 0.5 to 10 percent of that of the raw materials; sufficiently stirring the raw materials and the bonding agent evenly by a stirring machine; pressing the materials into balls by a ball press of which the pressure is not less than 20 T; drying the manganese alloy balls obtained by pressing for 15 to 25 minutes at a temperature of between 80 and 250 DEG C to obtain manganesealloy ball agglomerations of which the residual moisture is not more than 3 percent; and detecting the components and the strength of the ball agglomerations, and packaging the ball agglomerations fo r storage according to requirements. The method has the advantages of directly obtaining the manganese alloy with bright and clean surface, high strength and appropriate components.
Description
Technical field
The invention belongs to technical field of iron alloy production, particularly relate to a kind of production method of manganese alloy, produce the high-purity manganese alloy that uses for steel-making, production technique can save energy.
Technical background
Development along with Iron And Steel Industry, economizing on resources, protect environment, reducing cost, boost economic growth is to implement a scientific outlook on development, and makes the economic society of China keep the STRATEGIES OF SUSTAINABLE DEVELOPMENT policy.
Manganese element is one of alloying element indispensable in the steel, and in modernization steel-making, high pure manganese alloy is used more and more widely as deoxidization desulfuration agent and alloy element.At present, high purified manganese alloy mainly contains electrolytic manganese, manganese metal and little carbon ferromanganese or the like.And electrolytic manganese is directly added the molten steel use because the physical condition (powdery or sheet) of himself is very difficult by steel mill.Manganese series alloys such as present most widely used manganese metal and little carbon ferromanganese mainly are that electrolytic manganese is become liquid through high temperature melting, liquid metal manganese are cooled to room temperature again, are broken into block input molten steel then.The big energy of this arts demand consumption, contaminate environment simultaneously, and bring the high temperature scaling loss of manganese metal, manganese metal also can be subjected to various pollutions when high temperature melting, makes purified manganese metal originally increase the content of detrimental impurity element.
Summary of the invention
The object of the present invention is to provide a kind of production method of manganese alloy, solved that existing manganese series alloy is produced and use in energy consumption greatly, problem such as contaminate environment.It is bright and clean directly to obtain appearance, intensity height, the manganese alloy that composition is suitable.
The present invention uses electrolytic manganese to make raw material, refuse without high energy consumption, directly adding small amount of binder dries after ball press compacting balling-up, utilize the cohesive force of binding agent self to guarantee to have certain intensity, its physical and chemical index all reaches the standard-required of manganese metal, satisfy the service requirements of steel-making industry, for the cost efficiency of steel-making industry provides condition.Concrete production technique is as follows:
A. prepare burden: adopt powdery or granular electrolytic manganese, straight iron powder or pure iron bits are raw material, and wherein, electrolytic manganese accounts for 60～100 weight % in the raw material, Fe: surplus; The outer binding agent that adds raw material weight 0.5%～10%;
B. stir: adopt stirrer that raw material and binding agent are stirred;
C. pressure ball: the ball press that adopts pressure to be not less than 20T is suppressed balling-up with material;
D. oven dry: the manganese alloy ball that compacting is obtained is under 80 ℃～250 ℃, and oven dry 15～25min obtains residual water-content and is not more than 3% manganese alloy pelletizing;
E. test package: detect pelletizing composition and intensity, the satisfactory warehouse-in of packing;
Each element mass percent of manganeseirom of the present invention is: Mn:60～98%, and C :≤0.10%, P :≤0.05%, S :≤0.05%, Si :≤2.0%, Fe: surplus.
In addition, in the process of producing this manganese alloy, can add amount of copper, nickel, other alloying elements that molten steel such as chromium are required according to customer need.
Binding agent of the present invention is mineral binder bond (as a water glass, silicon sol and aluminum hydroxide gel etc.), also can add a small amount of organism (as polyvinyl alcohol, oxalic acid or the like) in these mineral binder bonds.
Evenly drop into continuously in the pressure ball equipment with rotary conveyor and chapelet after fully stirring, the one-tenth ball pressure of pressure ball equipment is not less than 20 tons, can obtain the suitable manganese alloy pelletizing of intensity like this.Ball press is divided into precompressed and the main two portions of pressing, precompressed is controlled helix speed by buncher, making originally, loose material has certain tap density, make material enter main pressing system simultaneously with the input speed of the best, main pressing system is made up of a pair roller rotor and hydraulic efficiency system, can regulate pressure between this breaker roll rotor by hydraulic efficiency system, be uniform-distribution with the hemisphere fossa groove of rule on this rotor, also can be designed to other shapes as requested, when this relatively rotates under motor drives rotor, material enters screening system with regard to the pelletizing that is pressed into unified shape, and the manganese metal pelletizing that outward appearance is qualified enters drying system in batches.
Advantage and positively effect
Other manganese series alloy costs such as this high-purity manganese alloy and manganeseirom and fuse metal manganese etc. compare:
1, the electrolytic metal Mn hot melt needs power consumption 750kwh～800kwh/ ton, and by 0.60～0.65 yuan/kwh of electricity price, energy consumption needs 450 yuan/ton, adopts the present invention, and power and oven dry only need electric 80kwh/ ton, save nearly 700kwh/ ton, are worth about 400 yuan/ton.Saved a large amount of manpower and materials simultaneously, reduced labour intensity, raised labour productivity.
2, this product iron alloy recovery rate in kind reaches more than 98.5%, and hot melt recovery rate in kind can only reach 96.5%, presses 15000 yuan of/ton calculating of manganese metal, increases the output value and reaches 300 yuan/ton.
3, be example by Wuhan Iron and Steel Plant and Anshan iron and steel plant only, consumed electrolytic manganese, little carbon ferromanganese all more than 2000 tons in every month, the ton cost reduces by 500 yuan, can increase each 1,000,000 yuan of benefits in every month, accumulates each 12,000,000 yuan of benefits every year.Therefore considerable social benefit and economic benefit are arranged.
4, this product adopts the powerful compacting of binding agent, less energy-consumption, and no sewage, no flue dust, noiselessness is the energy-saving product innovation that economizes on resources, protects environment, reduces cost, boosts economic growth really.
Description of drawings
Accompanying drawing 1 is a process flow sheet of the present invention.
Embodiment
Embodiment 1
Use electrolytic manganese 1000kg (Mn:99.8%, C:0.01%, S:0.02%, P:0.002%, Si:0.008%), with 24kg alkaline sodium silicate solution (modulus 3.4, degree Beaume 40) dropping into JAC350A type stirrer together stirred 20 minutes, material after stirring adds GY520-150 high pressure ball press (main frame pressure and rotating speed are adjusted according to material balling-up situation for precompressed 15kw, main frame 55kw) through rotary conveyor equably to lift, through precompressed, the pelletizing of compacting is through the screen cloth screening, and the pelletizing that meets the requirements delivers into hopper through conveyor, and minus mesh reenters the ball press compacting through belt and lift.The hopper that pelletizing is housed divides two batches (every 500kg is one batch) to enter Hotaircirculatingoven, from drying baker, take out behind the oven dry 20min down at 160 ℃, obtain residual moisture 0.5%, intensity meets the requirements of pelletizing, treat that temperature drops to this manganese ball composition of room temperature post analysis, qualified back packing warehouse-in.This manganese metal ball composition is as follows:
Mn:97.5%, C:0.03%, S:0.03%, P:0.005%, Si:0.008%, iron surplus.
Embodiment 2
Use electrolytic manganese 620kg (Mn:99.8%, C:0.01%, S:0.02%, P:0.002%, Si:0.008%), steel scrap bits 380kg (Mn:0.58%C:0.03%, S:0.004%, P:0.01%, Si:0.018%), allocate 20kg alkaline sodium silicate solution (modulus 3.4, degree Beaume 40) into, 10kg silicon sol (SiO
2Concentration 30%) dropping into JAC350A type stirrer together stirred after 20 minutes, evenly drop into the 20T nodulizer compacting that my company designs voluntarily through handling equipment, the a collection of manganese metal pelletizing oven dry of every 500kg once, 105 ℃ of bake out temperatures, after 3 hours time pelletizing is taken out, obtain residual water-content 0.8%, intensity meets the requirements of pelletizing, treat that temperature drops to this manganese ball composition of room temperature post analysis, qualified back packing warehouse-in.This manganese metal ball composition is as follows:
Mn:60.3%, C:0.035%, S:0.025%, P:0.01%, Si:0.015%, iron surplus
Embodiment 3
Use electrolytic manganese 860kg (Mn:99.8%, C:0.01%, S:0.02%, P:0.002%, Si:0.008%), steel scrap bits 140kg (Mn:0.37%, C:0.05%, S:0.008%, P:0.01%, Si:0.025%), allocate 25kg alkaline sodium silicate solution (modulus 3.4 into, degree Beaume 40), 5kg aluminum hydroxide gel (aluminium hydroxide concentration 6%), polyvinyl alcohol 1kg drop into the stirring of JAC350A type stirrer after 20 minutes together, evenly drop into the compacting of GY520-150 high pressure ball press through handling equipment, sieve the qualified a collection of oven dry of the every 500kg of pelletizing once through screening system, 200 ℃ of bake out temperatures behind the time 15min take out pelletizing, record residual water-content 0.5%, intensity meets the requirements of pelletizing, treats that temperature drops to this manganese ball composition of room temperature post analysis, qualified back packing warehouse-in.This manganese metal ball composition is as follows:
Mn:84.8%, C:0.028%, S:0.020%, P:0.015%, Si:0.015%, iron surplus.
Claims (2)
1. the production method of a manganese alloy is characterized in that,
A. prepare burden: adopt powdery or granular electrolytic manganese, straight iron powder or pure iron bits are raw material, and wherein, electrolytic manganese accounts for weight 60～100% in the raw material, Fe: surplus; The outer binding agent that adds raw material weight 2.4%～10%;
B. stir: adopt stirrer that raw material and binding agent are stirred;
C. pressure ball: the ball press that adopts pressure to be not less than 20T is suppressed balling-up with material, ball press is divided into precompressed and the main two portions of pressing, the precompressed part is by buncher control helix speed, make the loose raw material of script have certain tap density, make raw material enter main splenium branch simultaneously with the input speed of the best; Main splenium branch is made up of a pair roller rotor and hydraulic efficiency system, by the pressure between the described roll rotor of regulation of hydraulic system, be uniform-distribution with the hemisphere fossa groove of rule on the described roll rotor, when described roll rotor relatively rotated under motor drives, raw material just was pressed into the manganese alloy pelletizing of unified shape;
D. oven dry: the manganese alloy ball that compacting is obtained is under 80 ℃～250 ℃, and oven dry 15～25min obtains residual water-content and is not more than 3% manganese alloy pelletizing;
E. test package: detect pelletizing composition and intensity, each element mass percent of manganeseirom is: Mn:60～98%, and C :≤0.10%, P :≤0.05%, S :≤0.05%, Si :≤2.0%, Fe: surplus, the satisfactory warehouse-in of packing;
Described binding agent is mineral binder bond or adds a small amount of organism in these mineral binder bond.
2. method according to claim 1, described mineral binder bond are water glass, silicon sol or aluminum hydroxide gel; Described organism is polyvinyl alcohol or oxalic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910084505 CN101560621B (en) | 2009-05-18 | 2009-05-18 | Method for producing manganese alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910084505 CN101560621B (en) | 2009-05-18 | 2009-05-18 | Method for producing manganese alloy |
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| CN101560621A CN101560621A (en) | 2009-10-21 |
| CN101560621B true CN101560621B (en) | 2011-02-16 |
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| CN 200910084505 Expired - Fee Related CN101560621B (en) | 2009-05-18 | 2009-05-18 | Method for producing manganese alloy |
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Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798650B (en) * | 2010-04-09 | 2011-12-07 | 北京北冶功能材料有限公司 | Low-gas content metal manganese ingot and preparation method thereof |
| CN102816962A (en) * | 2011-06-08 | 2012-12-12 | 伍宏斌 | Low silicon high-purity manganese metal and preparation method thereof |
| CN102643953A (en) * | 2012-04-28 | 2012-08-22 | 常州市茂盛特合金制品有限公司 | Compressing double deoxidizer for steelmaking and preparation method thereof |
| CN102643980B (en) * | 2012-05-09 | 2013-10-09 | 常州市茂盛特合金制品有限公司 | Automatic production system for manganese metal ball |
| CN102994833A (en) * | 2012-10-29 | 2013-03-27 | 海门市金易焊接材料有限公司 | Manganese metal block |
| CN102943152B (en) * | 2012-11-08 | 2014-06-04 | 鞍山市和丰耐火材料有限公司 | Energy-saving production method for smelting electrolytic manganese balls for ultra-low carbon steel RH furnace alloy micro-adjustment |
| CN103088244A (en) * | 2012-11-09 | 2013-05-08 | 黄宣斐 | Ferromanganese alloy and preparation method thereof |
| CN103088245A (en) * | 2012-11-09 | 2013-05-08 | 黄宣斐 | Manganese-iron alloy |
| CN103088243A (en) * | 2012-11-09 | 2013-05-08 | 黄宣斐 | Preparation method of ferromanganese alloy |
| CN103042210B (en) * | 2012-12-24 | 2015-06-03 | 秀山天雄锰业科技有限公司 | Preparation method of high-pressure manganese balls |
| CN103555979B (en) * | 2013-09-17 | 2016-05-04 | 中信大锰矿业有限责任公司大新锰矿分公司 | A kind of automated production forging and stamping manganese goods system |
| CN106086558A (en) * | 2016-08-25 | 2016-11-09 | 广西蒙山县水电铁合金厂 | A kind of smelting process of the conversion ratio improving manganese-silicon |
| CN106222505A (en) * | 2016-08-25 | 2016-12-14 | 广西蒙山县水电铁合金厂 | A kind of smelting process improving manganese-silicon conversion ratio |
| CN106191584A (en) * | 2016-08-25 | 2016-12-07 | 广西蒙山县水电铁合金厂 | A kind of smelting process of the manganese-silicon of energy-conservation high conversion |
| CN114560451A (en) * | 2022-03-31 | 2022-05-31 | 北京科技大学 | Method for continuously producing manganese nitride product |
| CN115491533A (en) * | 2022-09-29 | 2022-12-20 | 贵州松桃金瑞锰业有限责任公司 | Preparation method of manganese alloy |
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