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    Method of producing low-sulfur, reduced, iron ore pellets
    1.
    发明授权
    Method of producing low-sulfur, reduced, iron ore pellets 失效
    生产低硫，还原铁矿石颗粒的方法

    公开(公告)号：US4409022A

    公开(公告)日：1983-10-11

    申请号：US354337

    申请日：1982-03-03

    申请人： Shinichi Kurozu

    发明人： Shinichi Kurozu

    IPC分类号： C21B13/00 ,  C21B13/08

    CPC分类号： C21B13/08 ,  C21B13/00 ,  Y02P10/136

    摘要： A method of producing reduced iron wherein pelletized materials are introduced into a furnace together with a reducing agent and a desulfurizing agent, and the pelletized materials are subjected to a reduction treatment. This method includes the step of maintaining the materials within the reducing atmosphere for at least an additional fifteen minutes once the metallization of the materials in the furnace has reached a value of 90 to 95 percent.

    摘要翻译： 一种生产还原铁的方法，其中将造粒材料与还原剂和脱硫剂一起引入炉中，并对造粒的材料进行还原处理。 该方法包括在炉中的材料的金属化达到90％至95％的值之后，将材料保持在还原气氛中至少另外十五分钟的步骤。

    Method for recycling iron and steel industry waste
    3.
    发明授权
    Method for recycling iron and steel industry waste 失效
    回收钢铁工业废弃物的方法

    公开(公告)号：US5843204A

    公开(公告)日：1998-12-01

    申请号：US761989

    申请日：1996-12-11

    申请人： Yoshitaka Ishikawa ,  Susumu Ide ,  Toshio Matsuoka ,  Shinichi Kurozu ,  Hiroshi Koide ,  Shigeru Morishita ,  Tateki Mori

    发明人： Yoshitaka Ishikawa ,  Susumu Ide ,  Toshio Matsuoka ,  Shinichi Kurozu ,  Hiroshi Koide ,  Shigeru Morishita ,  Tateki Mori

    IPC分类号： F23G5/00 ,  C22B7/02 ,  F23G5/20 ,  F23G7/04 ,  F23J1/00 ,  F27B7/02 ,  F27B7/20 ,  F27B7/33 ,  C21B11/06

    CPC分类号： F27B7/02 ,  C22B7/02 ,  F27B7/2083 ,  F27B2007/022 ,  Y02P10/216 ,  Y10S75/961

    摘要： In a method of recycling iron and steel industry waste by processing the waste as an object substance by the use of a rotary kiln, the object substance is changed into a valuable material while the object substance travels within the rotary kiln from an upstream side to a downstream side. The object substance is heated on the upstream side of the rotary kiln within a reducing atmosphere to be reduced and molten into a reduced and molten product. The reduced and molten product is quickly sent to the downstream side without being adhered to an internal wall of the rotary kiln. The valuable material is extracted from the reduced and molten product which may be directly discharged out of the rotary kiln or which may be discharged after the reduced and molten product is once kept in a basin formed in the vicinity of the downstream side of the rotary kiln.

    摘要翻译： 在通过使用回转窑处理作为物体的废物来回收钢铁工业废弃物的方法中，将物体变成有价值的材料，同时物体在回转窑内从上游侧行进到 下游侧。 目标物质在还原气氛中在回转窑的上游侧被加热以被还原并熔化成还原和熔融的产物。 还原和熔化的产品被快速地送到下游侧，而不粘附在回转窑的内壁上。 从可以直接排出回转窑的还原熔融产物中提取有价值的材料，或者在还原熔融产物一次保存在形成于回转窑下游侧附近的盆中之后排出 。

    Process for recovering valuable metals from a dust containing zinc
    4.
    发明授权
    Process for recovering valuable metals from a dust containing zinc 失效
    从含灰尘中回收有价值金属的工艺

    公开(公告)号：US5139567A

    公开(公告)日：1992-08-18

    申请号：US683158

    申请日：1991-04-10

    申请人： Toshio Matsuoka ,  Yukio Koyabu ,  Shinichi Kurozu

    发明人： Toshio Matsuoka ,  Yukio Koyabu ,  Shinichi Kurozu

    IPC分类号： C22B1/248 ,  C22B7/02 ,  C22B9/16 ,  C22B19/30

    CPC分类号： C22B7/02 ,  C22B19/30 ,  Y02P10/212

    摘要： There is disclosed a process for recovering valuable metals from a dust containing zinc comprising mixing the dust containing zinc with a reductant and a flux for regulating the basicity of slag, forming the mixture into pellets with a pelletizer, charging the pellets into a shaft type preheating-prereducing furnace provided with a preheating zone at the upper part and with a reducing zone at the lower part and removing, in the preheating zone, moisture and ignition loss components in the pellets, while prereducing in the reducing zone, the pellets under such conditions that a reduction of iron oxide is made to proceed selectively while the reduction of zinc oxide is suppressed to the possible minimum, charging the prereduced pellets into a melting furnace to melt and reduce them in the furnace, separating zinc, or zinc and lead, by evaporation followed by condensation to recover them, and separating iron and lead, or iron, according to the difference in their specific gravities to recover the iron as a molten pig iron and the lead as a crude lead.

    Process for recovering valuable metals from an iron dust containing a higher content of zinc
    5.
    发明授权
    Process for recovering valuable metals from an iron dust containing a higher content of zinc 失效
    从含有较高锌含量的铁粉中回收贵重金属的方法

    公开(公告)号：US4612041A

    公开(公告)日：1986-09-16

    申请号：US774503

    申请日：1985-09-10

    申请人： Toshio Matsuoka ,  Shinichi Kurozu

    发明人： Toshio Matsuoka ,  Shinichi Kurozu

    IPC分类号： C21B3/04 ,  C22B1/24 ,  C22B5/10 ,  C22B5/16 ,  C22B7/02 ,  C22B13/02 ,  C22B19/04 ,  C22B4/00

    CPC分类号： C22B19/04 ,  C21B3/04 ,  C22B1/2406 ,  C22B13/02 ,  C22B5/10 ,  C22B5/16 ,  C22B7/02 ,  Y02P10/212 ,  Y02W30/542

    摘要： A process for recovering valuable metals from an iron dust with a high concentration of zinc comprising (1) pelletizing said dust into a pellet in a pelletizer, (2) preheating the resulting pellets by charging a hot gas to remove water, the loss on ignition and carbonaceous materials contained in the pellets, and in case of need, the conditions of gas charged are set up so as to reduce selectively iron oxide while controlling the reduction of zinc oxide practically at zero level, (3) melting and reducing zinc oxide, iron oxide and lead oxide in said pellets in an induction furnace to separate zinc and a part of lead by vaporization and iron and lead by means of the difference in their specific gravities, and collecting zinc and lead as crude ones, iron as molten pig iron and lead as crude one respectively.

    摘要翻译： 一种从高浓度锌的铁粉中回收有价金属的方法，包括：（1）在造粒机中将所述粉末造粒成颗粒，（2）通过加热热气体除去水来预热所得颗粒，点火损失 包含在颗粒中的含碳材料，并且在需要的情况下，设置充入气体的条件，以便在实际上控制氧化锌在零水平的同时选择性地还原氧化铁，（3）熔化和还原氧化锌， 在感应炉中的所述颗粒中的氧化铁和氧化铅通过蒸发而分离锌和一部分铅，通过它们的比重差异将铁和铅分离，并将锌和铅作为粗制的铁，作为熔融生铁 并分别以原油为主。

    Method of and apparatus for continuously discharging molten metal and slag
    6.
    发明授权
    Method of and apparatus for continuously discharging molten metal and slag 失效
    连续排放金属和滑石的方法和装置

    公开(公告)号：US5123631A

    公开(公告)日：1992-06-23

    申请号：US614481

    申请日：1990-11-16

    申请人： Toshio Matsuoka ,  Yukio Koyabu ,  Shinichi Kurozu

    发明人： Toshio Matsuoka ,  Yukio Koyabu ,  Shinichi Kurozu

    IPC分类号： F27D3/14 ,  C21B11/00 ,  C21C5/52 ,  F27B3/19 ,  F27B14/18 ,  F27D3/15

    CPC分类号： C21C5/5241 ,  F27B3/19 ,  F27D3/1554 ,  Y02P10/253

    摘要： A furnace system including a main furnace for melting and reducing material to form molten metal and slag which are to be continuously discharged therefrom and provided with an outlet port formed in an upper portion of the side wall thereof, and an auxiliary furnace connected to the main furnace and communicating with the interior of the main furnace through the outlet port. The molten metal and the slag are allowed to continuously flow from the main furnace into the auxiliary furnace while maintaining the melt level in the main furnace above the level of the outlet port so as to seal the outlet port. The molten metal and the slag are discharged from the auxiliary furnace at the same rate as the increase in the amount of the molten metal and the slag in the main furnace. The auxiliary furnace may be provided with temperature control device for independently controlling the temperatures of the molten metal and the slag in the auxiliary furnace.