公开(公告)号：US4874427A

公开(公告)日：1989-10-17

申请号：US127600

申请日：1987-12-02

Applicant: Takao Hamada ,  Nobuo Tsuchiya ,  Toshihiro Inatani ,  Eiji Katayama ,  Toshimitsu Koitabashi ,  Kyoji Okabe ,  Mitsuo Sumito ,  Yoshiyasu Takada

Inventor： Takao Hamada ,  Nobuo Tsuchiya ,  Toshihiro Inatani ,  Eiji Katayama ,  Toshimitsu Koitabashi ,  Kyoji Okabe ,  Mitsuo Sumito ,  Yoshiyasu Takada

IPC: C21B13/00 ,  C21B13/14

CPC classification number: C21B13/14 ,  C21B13/002 ,  Y02P10/136 ,  Y02P10/265 ,  Y02P10/283

Abstract: A powdery or fine granular ore containing metal oxides is melted and refined by charging the ore and a part of a reducing gas discharged from a vertical type of melting and reducing furnace into a fluidized bed type of preliminary reducing furnace to preliminary reduce the ore therein, charging the preliminary reduced ore heated at a high temperature into the above described melting and reducing furnace and melting and reducing the ore by using a carbonaceous solid reducing agent and air or oxygen rich air heated at a high temperature and discharging the molten metal and the molten slag from the melting and reducing furnace. By using the preliminary reduction step, the pretreatment of the powdery or fine granular ore containing metal oxides, such as formation into pellets, sintered ores, briquets and the like can be omitted.

Abstract translation: 将含有金属氧化物的粉状或细粒状矿石通过将矿石和一部分从垂直型熔融还原炉排出的还原气体装入流化床型预还原炉中来初步减少其中的矿石而熔化和精制， 将在高温下加热的初步还原矿石装入上述熔化还原炉中，并通过使用碳质固体还原剂和在高温下加热的空气或富氧空气来熔融和还原矿石，并将熔融金属和熔融的 来自熔化还原炉的渣。 通过使用预还原工序，可以省略对含有金属氧化物的粉末状或细颗粒状矿石，例如形成颗粒，烧结矿石，砖块等的预处理。

公开(公告)号：US4505745A

公开(公告)日：1985-03-19

申请号：US524444

申请日：1983-08-18

Applicant: Takao Hamada ,  Nobuo Tsuchiya ,  Yo Ito ,  Toshihiro Inatani ,  Yoshiyasu Takada ,  Mitsuo Sumito ,  Toshimitsu Koitabashi ,  Hideshi Katayama

Inventor： Takao Hamada ,  Nobuo Tsuchiya ,  Yo Ito ,  Toshihiro Inatani ,  Yoshiyasu Takada ,  Mitsuo Sumito ,  Toshimitsu Koitabashi ,  Hideshi Katayama

IPC: C22C35/00 ,  C21C7/00 ,  C22C33/06 ,  C22C45/02 ,  C22C33/00

CPC classification number: C22C33/06

Abstract: A method of producing amorphous mother alloy is disclosed, which comprises charging raw material, carbonaceous reducing agent and secondary material into a smelting furnace and then smelting to produce Fe-B-Si series molten metal having a B-Si composition range which lies within an area represented by the trapezoidal area abcd shown in FIG. 2 of the accompanying drawings. The amorphous mother alloy is used to produce an amorphous starting material by diluting with molten steel.

Abstract translation: 公开了一种生产无定形母合金的方法，其包括将原料，碳质还原剂和二次材料装入熔炼炉中，然后熔炼以生产具有B-Si组成范围的Fe-B-Si系列熔融金属， 由图4所示的梯形区域abcd表示的区域。 附图2。 无定形母合金用于通过用钢水稀释来生产非晶起始材料。

公开(公告)号：US4733619A

公开(公告)日：1988-03-29

申请号：US936208

申请日：1986-12-01

Applicant: Sadahiko Maeda ,  Yasumasa Idei ,  Toshihiro Inatani ,  Mitsuo Sumito ,  Takao Hamada ,  Shunji Hamada

Inventor： Sadahiko Maeda ,  Yasumasa Idei ,  Toshihiro Inatani ,  Mitsuo Sumito ,  Takao Hamada ,  Shunji Hamada

IPC: B01J8/00 ,  C21B5/02 ,  C21B13/00 ,  F23G5/027 ,  F23G5/30 ,  F27B15/08 ,  F27D3/18 ,  F23G5/12

CPC classification number: C21B13/0033 ,  B01J8/0015 ,  C21B13/0026 ,  C21B5/026 ,  F23G5/027 ,  F23G5/30 ,  F27B15/08 ,  F27D3/18 ,  F23G2201/50 ,  F23G2203/503 ,  F23J2215/20 ,  F23J2219/60

Abstract: A powder feeder, includes a cylinder body connected to a gas blow pipe for fluidizing a powder at its bottom portion; a porous plate crossing the lower portion of the cylinder body above a gas blow hole; a partition plate which divides the interior of the cylinder body into a powder supply side and a delivery side and has a slit for communicating the supply and delivery sides with each other at its upper portion; a powder supply pipe connected to the lower portion of the cylinder body at the supply side to be inclined downward toward a connecting portion; and a powder delivery pipe connected to the lower portion of the cylinder body at the delivery side to be inclined downward in a delivery direction.

Abstract translation: 粉末供给器包括连接到气体吹管的筒体，用于在其底部处使粉末流化; 多孔板，与气缸孔的上方的气缸体的下部交叉; 分隔板，其将筒体的内部分成粉末供给侧和出口侧，并且具有用于在其上部使供给侧和排出侧彼此连通的狭缝; 供给侧的筒体的下部连接的粉末供给管朝向连接部向下方倾斜; 以及在输送侧连接到筒体的下部的粉末输送管，以沿输送方向向下倾斜。

公开(公告)号：US4397691A

公开(公告)日：1983-08-09

申请号：US401001

申请日：1982-07-22

Applicant: Takao Hamada ,  Nobuo Tsuchiya ,  Toshihiro Inatani ,  Yoshiyasu Takada ,  Mitsuo Sumito ,  Eiji Katayama ,  Toshimitsu Koitabashi ,  Kyoji Okabe ,  Yo Ito

Inventor： Takao Hamada ,  Nobuo Tsuchiya ,  Toshihiro Inatani ,  Yoshiyasu Takada ,  Mitsuo Sumito ,  Eiji Katayama ,  Toshimitsu Koitabashi ,  Kyoji Okabe ,  Yo Ito

IPC: C21B5/02 ,  C21B11/02 ,  C22C33/00 ,  C22C33/04 ,  C21B13/02

CPC classification number: C22C33/003

Abstract: Fe-B molten metal for producing amorphous alloys are produced in a low cost by using a vertical furnace wherein beds packed with a carbonaceous solid reducing agent are formed and two or three stages of tuyeres are provided in the lower portion of said furnace, feeding a preliminarily reduced powdery iron ore into the furnace through the upper stage of tuyeres together with hot air and feeding boron oxide or boric acid into the furnace through the lower stage of tuyeres together with hot air and, if necessary blowing hot air into the furnace through the lowest stage of tuyeres. In stead of the above described vertical furnace, a usual blast furnace provided with one or two stages of tuyeres at the lower portion of said furnace is used. In this case, sintered iron ore, pellet-formed iron ore or lump iron ore is fed from the top of the furnace and powdery boron oxide or boric acid is fed through the tuyeres.

Abstract translation: 用于生产非晶合金的Fe-B熔融金属是通过使用垂直炉来生产的，其中形成了填充有碳质固体还原剂的床，并且在所述炉的下部设置了两个或三个阶段的风口， 预先将粉铁矿石通过风口的上段与热风一起进入炉内，并将氧化硼或硼酸与热空气一起通过风口的下段进入炉内，如有必要，通过吹风将热空气吹入炉内 风口最低的阶段。 代替上述立式炉，使用在所述炉的下部设置有一个或两个阶段的风口的常规高炉。 在这种情况下，烧结铁矿石，颗粒状铁矿石或块状铁矿石从炉顶进料，粉状氧化硼或硼酸通过风口进料。