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    Apparatus for producing reduced iron and compact drying
    3.
    发明授权
    Apparatus for producing reduced iron and compact drying 失效
    用于生产还原铁和紧凑干燥的设备

    公开(公告)号：US06551548B2

    公开(公告)日：2003-04-22

    申请号：US09953160

    申请日：2001-09-17

    申请人： Susumu Kamikawa ,  Kouichi Hirata ,  Hironori Fujioka ,  Hideaki Mizuki ,  Keiichi Sato

    发明人： Susumu Kamikawa ,  Kouichi Hirata ,  Hironori Fujioka ,  Hideaki Mizuki ,  Keiichi Sato

    IPC分类号： C21B900

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

    摘要： An apparatus for producing reduced iron, and a compact drying method for application to the apparatus are disclosed. The apparatus comprises a pelletizer or a briquetter for mixing and agglomerating coal as a reducing agent and iron ore as iron oxide to form compacts, a dryer for drying the compacts, a circular rotary hearth type reducing furnace for reducing the dried compacts in a high temperature atmosphere, a first heat exchanger for performing heat exchange between a hot off-gas discharged from the reducing furnace and combustion air to be supplied to the reducing furnace, and coolers for cooling the hot off-gas. A second heat exchanger for heating drying air is disposed on an exit side of the first heat exchanger. The drying air heated by the second heat exchanger is supplied to the dryer to dry the compacts with the drying air which is scant in moisture. Consequently, highly efficient, stable drying in the dryer can be performed, and high quality reduced iron can be produced stably.

    摘要翻译： 公开了一种用于生产还原铁的设备，以及用于该设备的紧凑干燥方法。 该装置包括用于将煤作为还原剂混合和附聚的造粒机或压块机，并将铁矿石作为氧化铁形成压块，用于干燥压块的干燥器，用于在高温下还原干燥压块的圆形转底炉式还原炉 气氛，用于进行从还原炉排出的热废气与供给到还原炉的燃烧空气之间的热交换的第一热交换器，以及用于冷却热废气的冷却器。 用于加热干燥空气的第二热交换器设置在第一热交换器的出口侧。 由第二热交换器加热的干燥空气被供给到干燥器中以用湿气不足的干燥空气干燥压块。 因此，可以进行干燥机的高效，稳定的干燥，能够稳定地制造高品质的还原铁。

    Steel sheet for press working that exhibits excellent stiffness and satisfactory press workability
    6.
    发明授权
    Steel sheet for press working that exhibits excellent stiffness and satisfactory press workability 失效
    具有优异的刚性和令人满意的冲压加工性的冲压加工用钢板

    公开(公告)号：US5372654A

    公开(公告)日：1994-12-13

    申请号：US122357

    申请日：1993-09-17

    申请人： Susumu Satoh ,  Susumu Okada ,  Kouichi Hirata ,  Masahiko Morita ,  Tsuguhiko Nakagawa

    发明人： Susumu Satoh ,  Susumu Okada ,  Kouichi Hirata ,  Masahiko Morita ,  Tsuguhiko Nakagawa

    IPC分类号： C21D8/04 ,  C22C38/00 ,  C22C38/60 ,  C23C8/34 ,  C21D1/06

    CPC分类号： C23C8/34 ,  C21D8/0457 ,  C22C38/001 ,  C21D2201/05 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0473

    摘要： The present invention provides a steel sheet for press working that exhibits excellent stiffness and satisfactory press workability. The steel sheet for press working includes: a composition of C+N+B=0.007 to 1.0 wt % in a region from the surface of the steel sheet to a position of 5% of the thickness in a direction of the thickness in at least either of the surface layers; a pole intensity of [{321}+{211}]/{100}.gtoreq.1.2 in a vertical direction to the sheet surface realized at a 3% thickness position in the direction of the thickness from the surface; and a composition of C+N+B=0.010 wt % less than in the central portion 40% except for two 30% portions of the two surface layers in the direction of the thickness.

    摘要翻译： 本发明提供一种显示出优异的刚性和令人满意的冲压加工性的冲压加工用钢板。 用于冲压加工的钢板包括：在从钢板表面到至少厚度方向的厚度的5％的位置中，C + N + B = 0.007至1.0重量％的组合物至少 任何表面层; 在距离表面厚度方向的3％厚度位置实现的板材表面垂直方向的[{321} + {211}] / {100}> / = 1.2的极强度; 并且除了在两个表面层的厚度方向上的两个30％的部分之外，C + N + B的组成比在中心部分40％小0.010重量％。

    Apparatus for producing reduced iron
    8.
    发明授权
    Apparatus for producing reduced iron 失效
    用于生产还原铁的设备

    公开(公告)号：US06482351B2

    公开(公告)日：2002-11-19

    申请号：US09828802

    申请日：2001-04-10

    申请人： Susumu Kamikawa ,  Kouichi Hirata ,  Yoshimitsu Onaka

    发明人： Susumu Kamikawa ,  Kouichi Hirata ,  Yoshimitsu Onaka

    IPC分类号： C12B1314

    CPC分类号： C22B1/245 ,  C21B13/105 ,  C22B5/10

    摘要： An apparatus for producing reduced iron dries agglomerates, pelletized from a powdery mixture of an iron oxide powder and a reducing agent, in a drying chamber, preheats the dried agglomerates in a preheating chamber, and then reduces the preheated agglomerates in a high temperature atmosphere of a reducing furnace. In the preheating chamber, an off-gas from the reducing furnace is convected to preheat the dried agglomerates. A decrease in the fuel cost, and downsizing of the equipment can be achieved by effective use of the sensible heat of the off-gas discharged from the reducing furnace. Moreover, a downsized, simplified system for treatment of the off-gas is realized by decreasing the amount of the off-gas.

    摘要翻译： 用于生产还原铁的装置在干燥室中将由氧化铁粉末和还原剂的粉末状混合物造粒的团块干燥，在预热室中预热干燥的附聚物，然后在预热的聚合物的高温气氛 还原炉。 在预热室中，来自还原炉的废气被对流以预热干燥的附聚物。 可以通过有效地利用从还原炉排出的废气的显热来实现燃料成本的降低和设备的小型化。 此外，通过减少废气的量来实现废气处理的简化的简化系统。

    Apparatus for producing reduced iron
    9.
    发明授权
    Apparatus for producing reduced iron 失效
    用于生产还原铁的设备

    公开(公告)号：US06413471B1

    公开(公告)日：2002-07-02

    申请号：US09612322

    申请日：2000-07-07

    申请人： Susumu Kamikawa ,  Kouichi Hirata ,  Hironori Fujioka ,  Hideaki Mizuki ,  Keiichi Sato ,  Akihiro Santo

    发明人： Susumu Kamikawa ,  Kouichi Hirata ,  Hironori Fujioka ,  Hideaki Mizuki ,  Keiichi Sato ,  Akihiro Santo

    IPC分类号： C21B716

    CPC分类号： C21B13/105 ,  C21B13/10

    摘要： An apparatus for producing reduced iron by agglomerating a mixed powder of an iron material and a reducing agent to form compacts like briquettes or pellets, and reducing the compacts in a high temperature atmosphere is disclosed. In the apparatus, a rotary hearth in an annular form is rotatably supported. Right and left furnace walls and a ceiling are provided to cover an area above the rotary hearth, thereby forming a space portion in a high temperature atmosphere. A compact supply portion, and a compact discharge portion are provided adjacently in the ceiling. Partitioning members are provided as partitions between the compact supply portion, the compact discharge portion, and the high temperature atmosphere space portion.

    摘要翻译： 公开了一种通过将铁材料和还原剂的混合粉末凝聚而形成还原铁的装置，以形成如块状或块状的压块，并且在高温气氛下还原压块。 在该装置中，环形的旋转炉床被可旋转地支撑。 设置左右炉壁和天花板以覆盖旋转炉床上方的区域，从而在高温气氛中形成空间部分。 在天花板中相邻设置紧凑的供应部分和紧凑的排出部分。 分隔构件设置在紧凑型供应部分，紧凑型排放部分和高温气氛空间部分之间的分隔。

    Method for drying compacts
    10.
    发明授权
    Method for drying compacts 失效
    干燥压块的方法

    公开(公告)号：US06372016B1

    公开(公告)日：2002-04-16

    申请号：US09610478

    申请日：2000-07-05

    申请人： Susumu Kamikawa ,  Kouichi Hirata ,  Hironori Fujioka ,  Hideaki Mizuki ,  Keiichi Sato

    发明人： Susumu Kamikawa ,  Kouichi Hirata ,  Hironori Fujioka ,  Hideaki Mizuki ,  Keiichi Sato

    IPC分类号： C21B1100

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

    摘要： An apparatus for producing reduced iron, and a compact drying method for application to the apparatus are disclosed. The apparatus comprises a pelletizer or a briquetter for mixing and agglomerating coal as a reducing agent and iron ore as iron oxide to form compacts, a dryer for drying the compacts, a circular rotary hearth type reducing furnace for reducing the dried compacts in a high temperature atmosphere, a first heat exchanger for performing heat exchange between a hot off-gas discharged from the reducing furnace and combustion air to be supplied to the reducing furnace, and coolers for cooling the hot off-gas. A second heat exchanger for heating drying air is disposed on an exit side of the first heat exchanger. The drying air heated by the second heat exchanger is supplied to the dryer to dry the compacts with the drying air scant in moisture. Consequently, highly efficient, stable drying in the dryer can be performed, and high quality reduced iron can be produced stably.

    摘要翻译： 公开了一种用于生产还原铁的设备，以及用于该设备的紧凑干燥方法。 该装置包括用于将煤作为还原剂混合和附聚的造粒机或压块机，以及作为氧化铁的铁矿石以形成压块，用于干燥压块的干燥器，用于在高温下还原干燥压块的圆形转底炉式还原炉 气氛，用于进行从还原炉排出的热废气与供给到还原炉的燃烧空气之间的热交换的第一热交换器，以及用于冷却热废气的冷却器。 用于加热干燥空气的第二热交换器设置在第一热交换器的出口侧。 由第二热交换器加热的干燥空气被供给到干燥器中以干燥空气中的湿气干燥空气。 因此，可以进行干燥机的高效，稳定的干燥，能够稳定地制造高品质的还原铁。