• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A method is provided for producing molten metal consisting mainly of manganese and iron. The method comprises the steps of injecting a pulverulent material, containing manganese oxide, directly into a smelting reduction zone, together with coal and/or hydrocarbons, in powder form. The smelting reduction zone is continuously produced by the supply of heat energy e.g. from a plasma generator in a shaft filled with solid reducing agent. Examples include the production of ferromanganese and ferrosilicon manganese.
    公开号:SU1069632A3
    申请号:SU813366706
    申请日:1981-12-14
    公开日:1984-01-23
    发明作者:Сантен Свен；Юханссон Бере
    申请人:Скф Стил Инджиниринг Актиеболаг (Фирма)；
    IPC主号:
    专利说明:

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    The invention relates to metallurgy, in particular to the smelting of ferromanganese or ferrosilicomanganese in shaft furnaces.
    A known method of producing ferromanganese and ferrosilicon manganese in a shaft furnace, including loading of charge materials and coke, reduction of manganese, silicon and other accompanying metals from their oxides, melting of the metal and release of melt from the furnace tli.
    The disadvantage of this method is that certain requirements are imposed on the fractional composition of the charge, which makes it impossible to dispose of powdered manganese-containing materials.
    In addition, in the furnaces used to implement the method, it is difficult to ensure the necessary gas permeability of the column of charge materials, which makes it impossible to rationally use the energy of reducing gases and causes a high consumption of cois.
    The purpose of the invention is the use of pulverized charge materials and save coke.
    This goal is achieved in that according to the method of producing ferromanganese or ferrosilixmanganese in a shaft furnace, including the loading of charge materials and coke, the recovery of manganese, silicon and other related metals from their
    oxides contained in charge materials, metal melting and melt discharge from the furnace, powdered materials containing manganese oxides mixed with pyrated coal are blown into the lower part of the shaft furnace filled with solid reducing agent, and when smelting ferrosilicon manganese powder is added the material is enriched with silicon dioxide, while the thermal energy for reduction and melting is supplied from the plasma generator.
    Example. The raw material used was a powder mixture of manganese ore and slag-forming additives containing 48% Mn and 7%
    fe. The mixture was blown directly into the reaction zone, located in the lower part of the shaft furnace filled with coke, in front of the plasma gene torpomj which supplied thermal energy to the reaction zone.
    A reducing agent containing about 400 kg of coal dust per 1 ton of ferromanganese, was blown along with the specified raw material, which provided approximately 2/3 of the total need for a reducing agent. The missing amount of reductant was filled with coke loaded into the furnace through the throat.
    A metal containing 79.1% Mn and 6% C was released from the shaft furnace, which corresponded to 87% of the manganese yield. The slag had a basicity of 1.3-1.6 and contained 12-14% manganese. The amount of slag 50 kg / ton of metal. Kolshnikovy gas in the amount of more than 1000 metals contained 25% H, and 75% CO.
    Energy consumption was 3000 kW. h / t, waste gas temperature 1200 ° С, slag and metal had a temperature.
    Example 2. The powdered raw material was a mixture of manganese ore, quartz and lime and contained 35% MP and 38% Si O2.
    The raw materials were blown without prior reduction directly into the reaction zone together with the coal powder in the same way as in example 1. The amount of 550 kg of coal per ton of metal was increased, which provided more than 80% of the need for a reducing agent. The rest of the need for a reducing agent and carbon dissolved in the metal was provided by coke loaded into the blast furnace.
    The metal released from the furnace contained 65% Mn, 18% S5 and 1.5% C. The degree of transition of manganese into metal was 85%. The gas output is 1300 metal with a content of 30% Hj. and, 70% CO. Energy consumption 4500 kWh / t. The temperature of the gas around, metal and slag -.
    The implementation of the proposed method makes it possible to reduce the cost of production of ferromanganese, 11a and ferrosilicon manganese and save coke.
    权利要求:
    Claims (1)
    [1]
    METHOD FOR PRODUCING FERROMARGANESE OR FERROSILICOMARGANESIS in a shaft furnace, including loading charge materials and coke, recovering manganese, silicon and other related metals from their oxides contained in charge materials, melting the metal and releasing the melt from the furnace, characterized in that, for the purpose of using of pulverized charge materials and coke saving, powdered materials containing manganese oxides mixed with pulverized coal are blown into the lower part of a shaft furnace filled with a solid reducing agent, and when In the smelting of ferrosilicon manganese, a powdery material enriched in silicon dioxide is added to the injected mixture, while thermal energy for reduction and melting is supplied from the plasma generator.
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    同族专利:
    公开号 | 公开日
    IT1140286B|1986-09-24|
    FI813737L|1982-09-10|
    GB2094354B|1984-10-31|
    IN155076B|1984-12-29|
    ES506883A0|1982-09-01|
    CA1174855A|1984-09-25|
    OA06996A|1983-08-31|
    PL234266A1|1982-09-27|
    ES8206639A1|1982-09-01|
    IT8125206D0|1981-11-20|
    ZA811540B|1981-11-25|
    DE3141926A1|1982-10-28|
    GB2094354A|1982-09-15|
    BE891176A|1982-03-16|
    FI71351B|1986-09-09|
    SE8105120L|1982-09-10|
    FR2501238A1|1982-09-10|
    AU7756381A|1982-09-16|
    PH19400A|1986-04-10|
    MX157301A|1988-11-14|
    DD202185A5|1983-08-31|
    FI71351C|1986-12-19|
    ZW27981A1|1982-02-10|
    DE3141926C2|1985-06-13|
    FR2501238B1|1986-04-18|
    AT385518B|1988-04-11|
    ATA502781A|1987-09-15|
    KR830007865A|1983-11-07|
    JPS57149438A|1982-09-16|
    BR8200425A|1982-11-30|
    CS226043B2|1984-03-19|
    AU541839B2|1985-01-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE295549C|
    FR1452850A|1965-08-04|1966-04-15|Siderurgie Fse Inst Rech|Electric furnace ore reduction process|
    US4072504A|1973-01-26|1978-02-07|Aktiebolaget Svenska Kullagerfabriken|Method of producing metal from metal oxides|
    SE388210B|1973-01-26|1976-09-27|Skf Svenska Kullagerfab Ab|MAKE A REDUCTION OF METAL FROM METAL OXIDES|SE436124B|1982-09-08|1984-11-12|Skf Steel Eng Ab|SET TO MAKE PROCESS|
    SE453304B|1984-10-19|1988-01-25|Skf Steel Eng Ab|KIT FOR MANUFACTURE OF METALS AND / OR GENERATION OF BATTLE FROM OXIDE ORE|
    GB9108778D0|1991-04-24|1991-06-12|British Steel Plc|Production of ferromanganese|
    RU2044088C1|1994-04-15|1995-09-20|Акционерное общество закрытого типа "ККИП"|Method to extract manganese from manganese-containing ore|
    RU2449038C1|2010-09-23|2012-04-27|УЧРЕЖДЕНИЕ РОССИЙСКОЙ АКАДЕМИИ НАУК ИНСТИТУТ МЕТАЛЛУРГИИ УРАЛЬСКОГО ОТДЕЛЕНИЯ РАН |Charge for smelting ferrosilicomanganese|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ZA00811540A|ZA811540B|1981-03-09|1981-03-09|Method of producing molten metal consisting mainly of manganese and iron|
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