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8 条记录 (耗时 0.019 秒)

    Metal-making apparatus involving the smelting reduction of metallic oxides
    1.
    发明授权
    Metal-making apparatus involving the smelting reduction of metallic oxides 失效
    涉及冶金还原金属氧化物的金属制造装置

    公开(公告)号：US4886246A

    公开(公告)日：1989-12-12

    申请号：US272053

    申请日：1988-11-14

    申请人： Takuya Maeda ,  Keikichi Murakami ,  Tsutomu Yamada ,  Mitsuharu Kishimoto ,  Kenichi Yajima ,  Yoshihiko Takemura

    发明人： Takuya Maeda ,  Keikichi Murakami ,  Tsutomu Yamada ,  Mitsuharu Kishimoto ,  Kenichi Yajima ,  Yoshihiko Takemura

    IPC分类号： C21B13/14

    CPC分类号： C21B13/14 ,  Y02P10/136

    摘要： A metal-making apparatus is suited for the production of molten iron from iron ore which is in a state of particles with a wide range in size. Included are a solid-state prereduction furnace for preliminarily reducing the raw ore particles in a solid state, and a smelting reduction furnace for smelting the prereduced ore particles and reducing them in a molten state. High temperature reducing gas generated within the smelting reduction furnace is directed into the prereduction furnace and blown up through a distributor on which there is loaded a charge of raw ore particles. The ore particles of larger size form a fluidized bed on the distributor and so are prereduced by making intimate contact with the gas. Ore particles of smaller size, on the other hand, are carried away from the fluidized bed by the waste gas and thereby prereduced while being recirculated through the prereduction furnace. Discharged from the prereduction furnace, the prereduced ore particles of larger size are recharged by the force of gravity into the smelting reduction furnace. The prereduced ore particles of smaller size are recovered from the waste gas and pneumatically injected into the smelting reduction furnace.

    Rotary kiln and method of using such a kiln
    2.
    发明授权
    Rotary kiln and method of using such a kiln 失效
    回转窑和使用这种窑的方法

    公开(公告)号：US4462793A

    公开(公告)日：1984-07-31

    申请号：US404128

    申请日：1982-08-02

    申请人： Takuya Maeda ,  Tsutomu Yamada ,  Mitsuharu Kishimoto ,  Atsuyoshi Kubotani

    发明人： Takuya Maeda ,  Tsutomu Yamada ,  Mitsuharu Kishimoto ,  Atsuyoshi Kubotani

    IPC分类号： C22B5/10 ,  C21B13/08 ,  F27B7/02 ,  F27B7/34 ,  F27B7/36 ,  C21B13/00 ,  C21B11/06 ,  F27B15/00

    CPC分类号： F27B7/34

    摘要： This disclosure relates to a rotary kiln for heating and calcining lime, waste, etc. and to a method of direct reduction of metal oxide using such a kiln. A cylindrical outer shell is mounted for rotation on its axis, and a stationary inner tube extends into the interior of the shell. Fuel and/or combustion air flow passages extend within the tube, and burner nozzles are supported by the tube and are connected to the passages. The tube is concentrically or eccentrically mounted adjacent the upper side of the space within the shell, thereby positioning the burner nozzles at the optimum positions.

    摘要翻译： 本公开涉及一种用于加热和煅烧石灰，废物等的回转窑以及使用这种窑直接还原金属氧化物的方法。 安装圆柱形外壳以在其轴线上旋转，并且固定的内管延伸到壳体的内部。 燃料和/或燃烧空气流通道在管内延伸，并且燃烧器喷嘴由管支撑并连接到通道。 管同心或偏心安装在壳体内的空间的上侧，从而将燃烧器喷嘴定位在最佳位置。

    Batch process and static-bed type apparatus for reducing iron ore
    3.
    发明授权
    Batch process and static-bed type apparatus for reducing iron ore 失效
    用于还原铁矿石的分批过程和静态床式设备

    公开(公告)号：US4348225A

    公开(公告)日：1982-09-07

    申请号：US124229

    申请日：1980-02-25

    申请人： Takuya Maeda ,  Tsutomu Yamada ,  Mitsuharu Kishimoto

    发明人： Takuya Maeda ,  Tsutomu Yamada ,  Mitsuharu Kishimoto

    IPC分类号： C21B13/00 ,  C21B13/02 ,  C21B13/04

    CPC分类号： C21B13/04 ,  C21B13/0086 ,  C21B13/02 ,  Y02P10/136

    摘要： Static bed type iron oxide reducing apparatus comprises reduction furnaces and cooling chambers respectively associated with the furnaces. Iron oxides are charged into the furnaces and reducing gas is applied to the raw materials to carry out a reducing reaction. After the iron oxides in the furnace have been metallized to a sufficient level, they are transferred to the cooling chamber to be cooled therein.

    摘要翻译： 静态床型氧化铁还原装置包括分别与炉相连的还原炉和冷却室。 将铁氧化物装入炉中，将还原气体施加到原料上以进行还原反应。 在炉中的铁氧化物已经被金属化到足够的水平之后，将它们转移到冷却室中以在其中冷却。

    Molten metal producing and refining method
    6.
    发明授权
    Molten metal producing and refining method 失效
    熔融金属生产和精炼方法

    公开(公告)号：US5246482A

    公开(公告)日：1993-09-21

    申请号：US765142

    申请日：1991-09-25

    申请人： Keikichi Murakami ,  Mitsuharu Kishimoto ,  Yoshio Uchiyama ,  Kenichi Yajima ,  Masaru Takiura ,  Satoshi Tatsuta ,  Yukihiko Koza ,  Sumio Satoh

    发明人： Keikichi Murakami ,  Mitsuharu Kishimoto ,  Yoshio Uchiyama ,  Kenichi Yajima ,  Masaru Takiura ,  Satoshi Tatsuta ,  Yukihiko Koza ,  Sumio Satoh

    IPC分类号： C22B9/00 ,  C21B11/00 ,  C21B11/02 ,  C21C5/28 ,  C21C5/34

    CPC分类号： C21C5/34 ,  C21C5/28

    摘要： The disclosure relates to a molten metal producing and refining method which does not damage the apparatus, realizes a stable and high second combustion rate, and is capable of effectively recovering heat generated by the second combustion. The method comprises introducing a metal-containing material, a carbonaceous material, a flux and O.sub.2 gas into a furnace. The carbon which dissolves into the metal bath in the furnace from the carbonaceous material is combusted with the O.sub.2 gas to generate heat and CO gas. The CO gas is subjected to the second combustion with the O.sub.2 gas to additionally generate heat, and the metal-containing material is melted and refined by both the generated heat and carbon. The method is characterized in that O.sub.2 gas or O.sub.2 -containing gas is blown into the furnace through large-diameter tuyeres installed near the bottom of the furnace and a part of the O.sub.2 gas does not combust in the metal bath and leaves the metal bath unburnt, to perform the second combustion of the unburnt O.sub.2 gas with CO gas in the slag bath in the furnace.

    摘要翻译： 本发明涉及不会损坏设备的熔融金属生产和精炼方法，实现稳定和高的第二燃烧速率，并且能够有效地回收由第二燃烧产生的热量。 该方法包括将含金属的材料，碳质材料，助熔剂和O 2气体引入炉中。 从碳质材料溶解在炉中的金属浴中的碳与O 2气体一起燃烧以产生热和CO气体。 CO气体与O 2气体进行第二次燃烧以额外产生热量，并且含金属的材料通过产生的热量和碳两者而熔化和精炼。 该方法的特征在于，通过安装在炉底附近的大直径风口将O2气或含O2气体吹入炉内，部分O2气体在金属浴中不燃烧，并使金属浴不燃 ，以在炉中的炉渣槽中用CO气体进行未燃烧的O 2气体的二次燃烧。

    Powder and granular material supply system for closed system
    7.
    发明授权
    Powder and granular material supply system for closed system 失效
    封闭系统的粉末和颗粒材料供应系统

    公开(公告)号：US06523721B1

    公开(公告)日：2003-02-25

    申请号：US09959076

    申请日：2001-10-18

    申请人： Hiroki Nomoto ,  Kenichiro Murata ,  Mitsuharu Kishimoto

    发明人： Hiroki Nomoto ,  Kenichiro Murata ,  Mitsuharu Kishimoto

    IPC分类号： G01G1300

    CPC分类号： B65G53/44 ,  G01F13/003 ,  G01G11/00 ,  G01G11/04

    摘要： A granular material supply system has a granular material supply unit and a granular material feed unit. The granular material supply unit delivers a granular material through an inlet formed in a pressure case included in the granular material feed unit onto a conveying device disposed in the pressure case. The conveying device conveys the granular material to an outlet formed in the pressure case to feed the granular material through the outlet into a granular material using apparatus. The granular material supply unit, and the pressure case of the granular material feed unit can be immovably installed. Therefore the granular material supply system can be formed in a closed system without placing any special joints, such as expansion joints, in a line connecting the granular material supply unit and the pressure case and in a line connecting the pressure case and the granular material using apparatus. Only the conveying device needs to be disposed in the pressure case. Thus the granular material supply system is very simple and small in construction and is not very tall, which is advantageous in space for installation and equipment investment.

    摘要翻译： 颗粒材料供给系统具有颗粒材料供给单元和颗粒材料供给单元。 颗粒材料供给单元通过形成在包括在颗粒材料供给单元中的压力壳体中的入口将颗粒材料输送到设置在压力壳体中的输送装置。 输送装置将粒状材料输送到形成在压力壳体中的出口，以使用装置将颗粒材料通过出口送入粒状材料。 颗粒材料供给单元和颗粒材料供给单元的压力壳体可以不可移动地安装。 因此，粒状材料供给系统可以在封闭的系统中形成，而不需要在连接颗粒材料供应单元和压力壳体的线路中连接压力壳体和颗粒材料之间的任何特殊接头，例如膨胀接头，使用 仪器。 只有输送装置需要设置在压力箱中。 因此，粒状材料供应系统结构非常简单，结构小，不是很高，这在安装和设备投资的空间上是有利的。

    Fastening bolt
    8.
    发明授权
    Fastening bolt 失效
    紧固螺栓

    公开(公告)号：US06506007B1

    公开(公告)日：2003-01-14

    申请号：US09979517

    申请日：2002-01-28

    申请人： Mitsuharu Kishimoto ,  Yukihiko Koza ,  Hiroki Nomoto ,  Kenichi Yajima

    发明人： Mitsuharu Kishimoto ,  Yukihiko Koza ,  Hiroki Nomoto ,  Kenichi Yajima

    IPC分类号： F16B3100

    CPC分类号： F16B31/043 ,  B23P19/067 ,  F16B1/005 ,  F16B39/10 ,  Y10S411/916

    摘要： A fastening bolt fastens flanges between a bolt head and a nut attached on the threaded portion of the shaft via spherical washers. The fastening bolt has a cavity formed within the shaft. By application of pressure in the cavity with a hydraulic fluid supplied through a hydraulic pressure port in a plug, the shaft is extended and the fastening bolt becomes unfastened condition. In the unfastened condition, a gap is created between flange and nut, and the nut and the fastening bolt are free to rotate each other, therefore, the nut can be removed easily by hand from the fastening bolt, even the bolt is large in size. The fastening force is adjustable by the width of the gap before releasing hydraulic pressure in the cavity. By releasing hydraulic pressure in the cavity, the fastened condition is obtained. Conversion between fastened condition and unfastened condition can be made quickly and easily.

    摘要翻译： 紧固螺栓通过球形垫圈将法兰紧固在螺栓头和连接在轴的螺纹部分上的螺母之间。 紧固螺栓具有形成在轴内的空腔。 通过在通过插头中的液压端口供应的液压流体在腔中施加压力，轴被延伸并且紧固螺栓变得松开状态。 在松开状态下，法兰和螺母之间产生间隙，螺母和紧固螺栓自由旋转，因此螺母可以用手从紧固螺栓上轻松取下，即使螺栓尺寸较大 。 在释放空腔内的液压之前，紧固力可以通过间隙的宽度来调节。 通过释放空腔中的液压，获得紧固状态。 紧固状态和松开状态之间的转换可以快速方便地进行。