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407 条记录 (耗时 0.047 秒)

    Rotary hearth furnace for reducing oxides, and method of operating the furnace
    6.
    发明授权
    Rotary hearth furnace for reducing oxides, and method of operating the furnace 有权
    用于还原氧化物的旋转炉底炉和操作炉的方法

    公开(公告)号：US06270552B1

    公开(公告)日：2001-08-07

    申请号：US09308869

    申请日：1999-05-26

    申请人： Kanji Takeda ,  Yoshitaka Sawa ,  Tetsuya Yamamoto ,  Tetsuya Kikui

    发明人： Kanji Takeda ,  Yoshitaka Sawa ,  Tetsuya Yamamoto ,  Tetsuya Kikui

    IPC分类号： C21B1100

    CPC分类号： C21B5/026 ,  C21B13/10 ,  C21B13/105 ,  Y02P10/136

    摘要： Traveling hearth furnace and an operating method thereof, which, when stacking a layer consisting of a mixture of oxides such as fine iron ore and a fine solid reducing material onto a horizontally traveling hearth and reducing the oxides through radiant heat transfer from above the hearth, is based on melting the reduction product in the course of up to a discharge port, and causing aggregation and separation of slag in from the reduction product, followed by solidifying the reducible material.

    摘要翻译： 行走式炉床及其操作方法，当将由细铁矿石和细小的固体还原材料的氧化物的混合物组成的层层叠到水平行进的炉床上并通过从炉床上方的辐射热传递来还原氧化物时， 是基于将还原产物在直到排出口的过程中熔化，并使渣从还原产物中聚集和分离，然后固化可还原材料。

    Method of producing a reduced metal, and traveling hearth furnace for producing same
    9.
    发明授权
    Method of producing a reduced metal, and traveling hearth furnace for producing same 有权
    还原金属的制造方法以及用于制造其的行进式炉床

    公开(公告)号：US06126718A

    公开(公告)日：2000-10-03

    申请号：US280326

    申请日：1999-03-29

    申请人： Yoshitaka Sawa ,  Tetsuya Yamamoto ,  Kanji Takeda ,  Hiroshi Itaya

    发明人： Yoshitaka Sawa ,  Tetsuya Yamamoto ,  Kanji Takeda ,  Hiroshi Itaya

    IPC分类号： F27B9/16 ,  C21B13/10 ,  C21B11/08

    CPC分类号： C21B13/105 ,  C21B13/10 ,  Y02P10/136 ,  Y02P10/216

    摘要： Producing reduced metal by charging and stacking a raw material containing a metal-containing material and a solid reducing material on a horizontally moving hearth of a traveling hearth furnace, by disposing a solid reducing material layer on the hearth, forming concave portions at the solid reducing material surface, stacking the raw material on the surface of the solid reducing material layer, reducing raw material by at least once heating and melting the material on the hearth to separate metal and gangue and ash ingredients, and discharging metal from the hearth.

    摘要翻译： 通过在行走式炉床炉的水平移动的炉床上装入含有含金属的材料和固体还原材料的原料并且在炉床上设置固体还原材料层来形成还原金属，在固体还原 材料表面，将原料堆叠在固体还原材料层的表面上，通过至少一次加热和熔化炉床上的材料来还原原料，以分离金属和g石和灰份成分，并从炉床排出金属。

    Method and apparatus for charging raw and carbonaceous materials into a moving hearth furnace
    10.
    发明授权
    Method and apparatus for charging raw and carbonaceous materials into a moving hearth furnace 失效

    公开(公告)号：US06629839B2

    公开(公告)日：2003-10-07

    申请号：US09917106

    申请日：2001-07-27

    申请人： Tatsuya Ozawa ,  Tetsuya Yamamoto ,  Yoshitaka Sawa

    发明人： Tatsuya Ozawa ,  Tetsuya Yamamoto ,  Yoshitaka Sawa

    IPC分类号： F27B916

    CPC分类号： C21B13/10

    摘要： The invention provides a method and apparatus for charging a raw material and a carbonaceous material, in which a reduced product generated on a hearth can be quickly melted for reliable separation into a metal and slag, and the metal and the slag can be easily discharged out of a furnace as individual small agglomerates. With the charging method and apparatus, when charging the raw material and the carbonaceous material onto the moving hearth of the moving hearth furnace, the carbonaceous material is first charged onto the moving hearth to form a carbonaceous material layer thereon. The raw material or a mixture of the raw material and a carbonaceous material is then charged onto the carbonaceous material layer to form a raw material layer thereon. A projection is then pressed against the raw material layer from above, thereby forming a plurality of recesses in the surface of the carbonaceous material layer.