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135 条记录 (耗时 0.014 秒)

    Apparatus for refining ferrosilicon
    61.
    发明授权
    Apparatus for refining ferrosilicon 失效
    硅铁精炼设备

    公开(公告)号：US4347614A

    公开(公告)日：1982-08-31

    申请号：US127279

    申请日：1980-03-05

    申请人： Yoshiyuki Nakamura ,  Seiichi Matsubara ,  Takashi Matsui ,  Taiji Kumagai ,  Taizo Senga ,  Tsutomu Fukutsu

    发明人： Yoshiyuki Nakamura ,  Seiichi Matsubara ,  Takashi Matsui ,  Taiji Kumagai ,  Taizo Senga ,  Tsutomu Fukutsu

    IPC分类号： C21C5/52 ,  C22C35/00 ,  H05B7/00

    CPC分类号： C21C5/5264 ,  C21C5/52 ,  C22C35/005 ,  Y02P10/216

    摘要： A gas having high CO content evolved at reaction zone in a ferrosilicon-refining electric furnace is burned and deflected to wipe transversely on the top level of the charged raw materials with the aid of air introduced near electrodes through an air pipe. The burning of the gas is so controlled that a content of oxygen in the burned gas is within a range of 12-17% by volume by controlling a volume of the air to be introduced near electrodes as well as a volume of air invading into the furnace through a poking window and a gap between a shell of the furnace and a heat-shielding hood above the furnace. The CO-rich gas which has heretofore been exhausted in vain from the furnace can now be used to preheat the charged raw materials and prevents the furnace from blocking due to formation of crusts at the top level of the charged raw materials. The exhaust gas is now less noxious, has a higher temperature that can be used for driving a turbine of a generator. High heat efficiency, high quality of ferrosilicon, useful electric power and less blocking troubles can be obtained in a simple and economical way.

    摘要翻译： 在硅铁精炼电炉中在反应区放出的具有高CO含量的气体被燃烧并偏转以借助于通过空气管引入电极附近的空气横向擦拭带电原料的顶部水平。 气体的燃烧受到控制，通过控制在电极附近引入的空气的体积以及侵入到气体中的空气的体积，燃烧气体中的氧含量在12-17体积％的范围内 炉子通过捅窗和炉壳之间的间隙和炉上方的遮光罩。 迄今为止，已经从炉中排出的富含CO的气体现在可以用于预热加入的原料，并且防止由于在带电原料的顶层形成结壳而导致的炉堵塞。 废气现在较少有毒，具有可用于驱动发电机的涡轮机的较高温度。 以简单经济的方式可以获得高热效率，高质量的硅铁，有用的电力和较少的阻塞故障。

    Continuous smelting method for ferrochrome
    63.
    发明授权
    Continuous smelting method for ferrochrome 失效
    铬铁连续冶炼法

    公开(公告)号：US4235623A

    公开(公告)日：1980-11-25

    申请号：US35289

    申请日：1979-05-02

    申请人： Gero Rath

    发明人： Gero Rath

    IPC分类号： C22B34/32 ,  C22C33/04 ,  C22C35/00 ,  C22C39/14

    CPC分类号： C22C35/005

    摘要： A method is provided for continuous smelting of ferrochrome with less than 6.5% by weight carbon content in an electric reduction furnace. In the described method, separately from the normal mixture of ores continuously fed into the melt, and consisting of lumpy ore agglomerated fine ore, part of the mixture of ores is introduced as wholly or partially unreduced oxide-rich chrome ore directly into the bath of slag. The introduction of the oxide-rich chrome ore, which is fed separately from the normal mixture of ores, may be made through a hollow electrode into the bath of slag.

    摘要翻译： 提供了一种用于在电还原炉中连续熔炼低于6.5重量％碳含量的铬铁的方法。 在所描述的方法中，与连续进料到熔体中的矿石的正常混合物分开，并且由块状矿石聚集的细矿石组成，将矿石混合物的一部分作为全部或部分未还原的富含氧化物的铬矿石直接引入到 矿渣。 引入与矿石的正常混合物分开供给的富含氧化物的铬矿可以通过中空电极进入炉渣槽中。

    Alloy carrier for charging cupola furnaces
    64.
    发明授权
    Alloy carrier for charging cupola furnaces 失效
    合金载体为冲天炉提供充电

    公开(公告)号：US4231798A

    公开(公告)日：1980-11-04

    申请号：US39938

    申请日：1979-05-17

    申请人： Hans Schramm ,  Klaus Schramm

    发明人： Hans Schramm ,  Klaus Schramm

    IPC分类号： C22C33/00 ,  C22C35/00 ,  C22C37/00

    CPC分类号： C22C33/006 ,  C22C35/005

    摘要： Alloy carrier for charging cupola furnaces, the carriers having the form of bodies molded with cement, the alloys being manganese as ferromanganese and silicon in the following composition8-40% Mn9-22% C2-9% Fe18-45% Si15-30% Portland Cement4-8% H.sub.2 O chemically bound2-7% residue components (all percentages by weight)wherein the manganese carrier is ferromanganese carbure and the silicon carrier is silicon carbide.

    摘要翻译： 用于对冲天炉加热的合金载体，具有用水泥成型的主体形式的载体，该合金是以锰铁为锰，以下组成的硅8-40％Mn 9-22％C 2-9％Fe 18-45％Si 15-30％波特兰水泥4-8％H 2 O化学键合2-7％残留成分（全部重量百分比），其中锰载体是铁锰碳化物，硅载体是碳化硅。

    Process for combined production of ferrosilicozirconium and zirconium corundum
    65.
    发明授权
    Process for combined production of ferrosilicozirconium and zirconium corundum 失效
    铁硅化锆和锆刚玉的组合生产工艺

    公开(公告)号：US4229214A

    公开(公告)日：1980-10-21

    申请号：US43956

    申请日：1979-05-30

    申请人： Boris A. Shushlebin ,  Nikolai P. Lyakishev ,  Viktor V. Tregubenko ,  Gennady F. Ignatenko ,  Nikolai I. Subbotin

    发明人： Boris A. Shushlebin ,  Nikolai P. Lyakishev ,  Viktor V. Tregubenko ,  Gennady F. Ignatenko ,  Nikolai I. Subbotin

    IPC分类号： C04B35/484 ,  C04B35/653 ,  C22C35/00 ,  C22B5/00 ,  C22C28/00

    CPC分类号： C22C35/005 ,  C04B35/484 ,  C04B35/653

    摘要： A process for a combined production of ferrosilicozirconium and zirconium corundum comprising melting of a zirconic concentrate, an iron ore and aluminium taken in a weight ratio therebetween of 51-69:9.9-16.5:19.8-34.8 respectively at a temperature of 1,950.degree. to 2,000.degree. C. and separately casting the resulting desired products; prior to casting zirconium corundum, alumina is added thereto in an amount ranging from 0.5 to 50% by weight of zirconium concentrate and alumina is melted at a temperature of 1,950.degree. to 2,000.degree. C. The process according to the present invention makes it possible to jointly produce high-quality ferrosilicozirconium and zirconium corundum using single technology. Incorporation of alumina makes it possible to reduce the content of silica in zirconium corundum to 0.6% by weight, that of calcium oxide--down to 0.4% by weight, total iron content--to 0.2% by weight. Furthermore, incorporation of alumina makes it possible to increase productivity of process equipment (i.e. increase the output of zirconium corundum per one melting).

    摘要翻译： 一种组合生产铁硅化锆和锆刚玉的方法，其包括在1900至2000之间的温度下分别以51-69:9.9-16.5:19.8-34.8之间的重量比熔炼锆精矿，铁矿石和铝。 并分别浇铸得到的所需产物; 在浇铸锆刚玉之前，向其中加入氧化铝，其量为锆浓度为0.5〜50重量％，氧化铝在1900℃-2000℃的温度下熔融。按照本发明的方法， 使用单一技术共同生产高品质的硅化锆和锆刚玉。 氧化铝的结合使得可以将锆刚玉中的二氧化硅含量降低至0.6重量％，氧化钙的含量降低至0.4重量％，总铁含量至0.2重量％。 此外，掺入氧化铝使得可以提高工艺设备的生产率（即，每一次熔化增加锆刚玉的产量）。

    Vacuum smelting process for producing ferrotungsten
    66.
    发明授权
    Vacuum smelting process for producing ferrotungsten 失效
    用于生产FERROTUNGSG的真空熔炼工艺

    公开(公告)号：US4113479A

    公开(公告)日：1978-09-12

    申请号：US768386

    申请日：1977-02-14

    申请人： Donald O. Buker

    发明人： Donald O. Buker

    IPC分类号： C22B5/12 ,  C22B34/36 ,  C22C35/00 ,  C22C38/22

    CPC分类号： C22B34/36 ,  C22B5/12 ,  C22C35/005 ,  Y10S75/962

    摘要： A process for producing ferrotungsten alloys by forming a uniform mixture comprised of a finely-particulated tungsten-containing mineral, such as wolframite, scheelite, ferberite, and/or huebnerite; a supplemental quantity of a particulated iron-bearing material and a controlled amount of a carbonaceous reducing agent which is agglomerated into a plurality of pellets which are heated to an elevated temperature under a controlled vacuum for a period of time sufficient to effect a reduction of the tungstic oxide constituent to the metallic state and volatilization and extraction of the volatile constituents in the pellets, and an alloying of the metallic tungsten with the iron constituent, producing substantially dense sintered ferrotungsten alloy pellets.

    Ferrosilicon alloy
    68.
    发明授权
    Ferrosilicon alloy 失效
    FERROSILICON合金

    公开(公告)号：US3839014A

    公开(公告)日：1974-10-01

    申请号：US36603773

    申请日：1973-06-01

    申请人： KNAPSACK AG

    发明人： CZISKA J ,  STRAUSS G ,  PORTZ W ,  KOMORNICZYK K ,  KANDLER J

    IPC分类号： C22C35/00 ,  B22F1/00 ,  C22C39/54

    CPC分类号： C22C35/005

    摘要： Ferrosilicon alloy in powder form consisting of smooth, spheroidally shaped particles and having a density of more than 7 g/cc. The alloy contains more particularly between 8 and 15 weight percent of silicon, between 0.5 and 5 weight percent of nickel, between 1.4 and 5 weight percent of copper and between 0.3 and 2.5 weight percent of phosphorus as an additional ingredient.

    摘要翻译： 粉末形式的硅铁合金，由光滑的球形颗粒组成，密度大于7g / cc。 该合金更特别地含有8至15重量％的硅，0.5至5重量％的镍，1.4至5重量％的铜和0.3至2.5重量％的磷作为附加成分。

    Addition alloys
    69.
    发明授权
    Addition alloys 失效
    添加合金

    公开(公告)号：US3829311A

    公开(公告)日：1974-08-13

    申请号：US28788072

    申请日：1972-09-11

    申请人： INT NICKEL CO

    发明人： GRANT J ,  COX G

    IPC分类号： C21C1/10 ,  C22C35/00 ,  C22C29/00

    CPC分类号： C22C35/005

    摘要： DIRECTED TO ALLOYS WHICH ARE PARTICULARLY SUITABLE FOR THE INTRODUCTION OF MAGNESIUM INTO MOLTEN IRON AND WHICH CONTAIN IN WHICH PERCENT ABOUT 5% TO 15% NICKEL, ABOUT 5% TO 14% MAGNESIUM, ABOUT 34% TO 60% SILICON, ABOUT 0.5% TO ABOUT 3% OF A RARE EARTH METAL, UP TO ABOUT 4% CALCIUM, UP TO ABOUT 2% CARBON, UP TO ABOUT 10% MANGANESE, UP TO ABOUT 10% COPPER, THE BLANCE BEING ESSENTIALLY IRON, IN AN AMOUNT LESS THAN ABOUT 50%.