SYSTEM AND METHOD FOR MELTING LIGHT GAUGE METAL STOCK

    公开(公告)号:US20180023894A1

    公开(公告)日:2018-01-25

    申请号:US15720793

    申请日:2017-09-29

    摘要: An exemplary furnace system for melting stock metal includes a main hearth and a side well subsystem, which includes a melting well disposed downstream of the main hearth for receiving flow from the main hearth, an input flow inducer disposed upstream of the melting well and downstream of the main hearth, and an output flow inducer disposed downstream of the melting well and upstream of the main hearth. The input flow inducer drives molten metal into the melting well, thereby forming a differential metal head in the melting well. The output flow inducer evacuates molten metal from an output conduit, thereby reducing counter-pressure at an output port of the melting well communicating with the output conduit. This allows atmospheric pressure to add to the differential metal head in the melting well, resulting in an increase in productivity of the side well subsystem and of the furnace system as a whole.

    Method for tapping a steel making furnace

    公开(公告)号:US09618265B2

    公开(公告)日:2017-04-11

    申请号:US14526681

    申请日:2014-10-29

    申请人: Nupro Corporation

    摘要: A method of tapping a steelmaking furnace comprised of determining a desired level of steel to be attained in a ladle, and calculating the weight of molten steel that will be present when the desired level is attained following a transfer of molten steel from the furnace to the ladle. The furnace is operated such that slag is formed on top of molten steel contained therein. The furnace is moved to a first position to cause transfer of molten steel to the ladle to begin. The transfer of molten steel from the furnace to the ladle is continued, and at the first occurrence of molten steel attaining the desired level in the ladle, molten steel attaining a maximum allowable weight in the ladle, or an excessive amount of slag being present upon the molten steel in the ladle, transfer of molten steel to the ladle is ceased.

    Metal melting furnace vortex chamber body and metal melting furnace using the same
    5.
    发明授权
    Metal melting furnace vortex chamber body and metal melting furnace using the same 有权
    金属熔化炉涡流室体与金属熔化炉采用相同

    公开(公告)号:US09410743B2

    公开(公告)日:2016-08-09

    申请号:US14126171

    申请日:2012-09-27

    申请人: Kenzo Takahashi

    发明人: Kenzo Takahashi

    摘要: A metal melting furnace vortex chamber body having a vortex chamber capable of communicating with a storage space of a furnace body having the storage space storing molten metal. The metal melting furnace vortex chamber body has a drop weir part which switches a communication state and an interruption state between the storage space and the vortex chamber. The drop weir part includes a blind drop weir and an opening type drop weir which are formed as separate members. At least the blind drop weir is movable up and down with respect to the vortex chamber body and is selectively positioned at an upward movement position and a downward movement position so as to switch the communication state and the interruption state.

    摘要翻译: 一种金属熔化炉涡流室主体,其具有能够与具有存储熔融金属的储存空间的炉体的存储空间连通的涡流室。 金属熔化炉涡流室主体具有下降的堰部分,其在存储空间和涡流室之间切换通信状态和中断状态。 堰坝部分包括一个盲堰堰和一个开放式堰式堰,形成为独立的构件。 至少盲堰可相对于涡流室主体上下移动,并且选择性地定位在向上运动位置和向下运动位置,以便切换连通状态和中断状态。

    METHOD FOR TAPPING A STEEL MAKING FURNACE
    6.
    发明申请
    METHOD FOR TAPPING A STEEL MAKING FURNACE 有权
    钢铁制造炉的方法

    公开(公告)号:US20160123669A1

    公开(公告)日:2016-05-05

    申请号:US14526681

    申请日:2014-10-29

    申请人: Nupro Corporation

    摘要: A method of tapping a steelmaking furnace comprised of determining a desired level of steel to be attained in a ladle, and calculating the weight of molten steel that will be present when the desired level is attained following a transfer of molten steel from the furnace to the ladle. The furnace is operated such that slag is formed on top of molten steel contained therein. The furnace is moved to a first position to cause transfer of molten steel to the ladle to begin. The transfer of molten steel from the furnace to the ladle is continued, and at the first occurrence of molten steel attaining the desired level in the ladle, molten steel attaining a maximum allowable weight in the ladle, or an excessive amount of slag being present upon the molten steel in the ladle, transfer of molten steel to the ladle is ceased.

    摘要翻译: 一种钢炼炉的方法,包括确定在钢包中要获得的钢的期望水平,以及计算当钢水从炉转移到炉中时获得所需水平时将存在的钢水重量 钢包 操作炉子,使炉渣形成在其中容纳的钢水顶部。 炉子移动到第一位置以使钢水转移到钢包开始。 将钢水从炉中转移到钢包继续进行,钢水第一次发生时,钢水达到所需水平,钢水中钢水达到最大允许重量,或过量的炉渣存在于 钢包中的钢水停止,钢水转移到钢包中。

    Method for casting material
    7.
    发明授权
    Method for casting material 有权
    铸造材料的方法

    公开(公告)号:US09221097B2

    公开(公告)日:2015-12-29

    申请号:US14639205

    申请日:2015-03-05

    摘要: A casting system and method. The casting system can include an energy source and a hearth, which can have a tapered cavity. The tapered cavity can have a first end portion and a second end portion, and the tapered cavity can narrow between the first and second end portions. Further, the tapered cavity can have an inlet at the first end portion that defines an inlet capacity, and one or more outlets at the second end portion that define an outlet capacity. Where the cavity has a single outlet, the outlet capacity can be less than the inlet capacity. Where the cavity has multiple outlets, the combined outlet capacity can match the inlet capacity. Further, the cross-sectional area of the tapered cavity near the inlet can be similar to the cross-sectional area of the inlet.

    摘要翻译: 铸造系统和方法。 铸造系统可以包括能量源和炉床,其可以具有锥形空腔。 锥形空腔可以具有第一端部和第二端部,并且锥形空腔可以在第一和第二端部之间变窄。 此外,锥形空腔可以在第一端部处具有限定入口容量的入口,以及限定出口容量的第二端部处的一个或多个出口。 在空腔具有单个出口的地方,出口容量可以小于入口容量。 在空腔具有多个出口的地方,组合的出口容量可以与入口容量相匹配。 此外,入口附近的锥形空腔的横截面积可以与入口的横截面面积相似。

    Tapered hearth
    8.
    发明授权
    Tapered hearth 有权
    锥形炉膛

    公开(公告)号:US09050650B2

    公开(公告)日:2015-06-09

    申请号:US13759370

    申请日:2013-02-05

    摘要: A casting system and method. The casting system can include an energy source and a hearth, which can have a tapered cavity. The tapered cavity can have a first end portion and a second end portion, and the tapered cavity can narrow between the first and second end portions. Further, the tapered cavity can have an inlet at the first end portion that defines an inlet capacity, and one or more outlets at the second end portion that define an outlet capacity. Where the cavity has a single outlet, the outlet capacity can be less than the inlet capacity. Where the cavity has multiple outlets, the combined outlet capacity can match the inlet capacity. Further, the cross-sectional area of the tapered cavity near the inlet can be similar to the cross-sectional area of the inlet.

    摘要翻译: 铸造系统和方法。 铸造系统可以包括能量源和炉床,其可以具有锥形空腔。 锥形空腔可以具有第一端部和第二端部,并且锥形空腔可以在第一和第二端部之间变窄。 此外,锥形空腔可以在第一端部处具有限定入口容量的入口,以及限定出口容量的第二端部处的一个或多个出口。 在空腔具有单个出口的地方,出口容量可以小于入口容量。 在空腔具有多个出口的地方,组合的出口容量可以与入口容量相匹配。 此外,入口附近的锥形空腔的横截面积可以与入口的横截面面积相似。

    Method and apparatus for desulphurizing iron with minimal slag formation
    10.
    发明授权
    Method and apparatus for desulphurizing iron with minimal slag formation 失效
    铁渣脱硫最少的方法和设备

    公开(公告)号:US5466275A

    公开(公告)日:1995-11-14

    申请号:US295733

    申请日:1994-08-29

    申请人: Anton More

    发明人: Anton More

    CPC分类号: C21C1/02 C21C7/064

    摘要: The invention relates to a method and apparatus for desulphurizing iron with minimal slag formation, comprising the steps of melting and heating, to a temperature of about 1400.degree. to 1800.degree. C., a slag having the following chemical composition:20% max SIO.sub.2 ;30% max/Al.sub.2 O.sub.3 ;about 5-40% SiO.sub.2 +Al.sub.2 O.sub.3 +TiO.sub.2 combined;2% max FeO;1.5% max MnO;about 25-65% CaO+MgO+BaO+Na.sub.2 O+K.sub.2 O;20% max MgO;10% max Na.sub.2 O+K.sub.2 O;60% max CaF.sub.2 ;about 50-85% CaO+MgO+BaO+Na.sub.2 O+K.sub.2 O+CaF.sub.2 ;percentages by weight; where the ratio of the percentage by weight of CaO plus MgO divided by the percentage by weight of SiO.sub.2 plus one-half Al.sub.2 O.sub.3 is at least two and where the ratio of the percentage by weight of Na.sub.2 O plus K.sub.2 O to SiO.sub.2 is no more than one; then mixing the sulphur-containing hot metal with this bath of molten slag so as not to exceed 10 parts molten iron per part slag by weight. The desulphurized molten iron is then drawn from beneath the slag bath. The process may be accomplished using a low shaft furnace according to the present invention comprising a furnace body lined with carbon bricks or carbonaceous, basic or high-alumina refractory bricks and having a discharge pipe extending down to the bottom of the furnace chamber for discharging the desulphurized molten iron from beneath the slag bath.

    摘要翻译: PCT No.PCT / DE93 / 00165 Sec。 371日期:1994年8月29日 102(e)日期1994年8月29日PCT提交1993年2月25日PCT公布。 公开号WO93 / 17131 日本1993年9月2日。本发明涉及一种使炉渣形成最少的铁脱硫方法和装置,其特征在于包括以下步骤:熔化和加热到约1400℃至1800℃的温度, 组成:20%最大SIO2; 30%max / Al2O3; 约5-40%的SiO2 + Al2O3 + TiO2组合; 2%最大FeO; 1.5%MnO; 约25-65%CaO + MgO + BaO + Na2O + K2O; 20%最大MgO; 10%最大Na2O + K2O; 60%最大CaF2; 约50-85%CaO + MgO + BaO + Na2O + K2O + CaF2; 重量百分比; 其中CaO与MgO的重量比除以SiO 2加上一半Al 2 O 3的重量百分比至少为2,Na 2 O + K 2 O与SiO 2的重量比不大于1; 然后将该含硫铁水与该熔渣熔池混合,以使其不超过10份铁水每份重量的熔渣。 然后从渣槽下方抽出脱硫的铁水。 该方法可以使用根据本发明的低竖炉来实现,该低炉具有包括碳砖或碳质,碱性或高铝耐火砖的炉体,并且具有向下延伸到炉室底部的排放管,用于排放 从渣槽下方脱硫的铁水。