公开(公告)号：US06837916B2

公开(公告)日：2005-01-04

申请号：US09974511

申请日：2001-10-10

申请人： Masahiro Kawakami ,  Terutoshi Sawada ,  Takeshi Sekiguchi ,  Masayuki Watanabe ,  Katsuhiro Iwasaki ,  Shinichi Isozaki ,  Junichi Fukumi

发明人： Masahiro Kawakami ,  Terutoshi Sawada ,  Takeshi Sekiguchi ,  Masayuki Watanabe ,  Katsuhiro Iwasaki ,  Shinichi Isozaki ,  Junichi Fukumi

IPC分类号： C21B13/00 ,  C21B13/14 ,  C21C1/02 ,  C21C5/50 ,  C21C5/56 ,  C21C7/00 ,  C21C7/064 ,  C21C7/068

CPC分类号： C21B13/0013 ,  C21B13/14 ,  C21B2100/62 ,  C21B2100/66 ,  C21C1/02 ,  C21C5/50 ,  C21C5/56 ,  C21C7/0025 ,  C21C7/064 ,  C21C7/068 ,  Y02P10/136

摘要： A smelting reduction method comprising (a) charging a carbonaceous material and an ore into a reacting furnace to directly contact the carbonaceous material and the ore; (b) reducing the ore until at least a part of the ore is metallized, the resultant reduced ore containing at least a part of metallized metal being produced; (c) charging the carbonaceous material and the ore containing at least a part of the metallized metal from step (b) into a smelting furnace having a metal bath; and (d) blowing a gas containing 20% or more of oxygen into the metal bath in the smelting furnace to produce molten iron.

摘要翻译： 一种熔融还原方法，包括（a）将碳质材料和矿石装入反应炉中以直接接触含碳材料和矿石; （b）减少矿石，直到矿石的至少一部分被金属化，所生成的还原矿石含有至少一部分金属化金属; （c）将来自步骤（b）的含有至少一部分金属化金属的含碳材料和矿石装入具有金属浴的熔炼炉中; 和（d）将含有20％或更多氧气的气体吹入冶炼炉中的金属浴中以产生铁水。

公开(公告)号：US6042776A

公开(公告)日：2000-03-28

申请号：US151945

申请日：1998-09-11

申请人： Shinichi Isozaki ,  Noboru Sato ,  Masayuki Watanabe

发明人： Shinichi Isozaki ,  Noboru Sato ,  Masayuki Watanabe

IPC分类号： C22B7/02 ,  C22B19/34 ,  C22B9/21

CPC分类号： C22B19/34 ,  C22B7/02 ,  Y02P10/232 ,  Y10S75/961

摘要： A method for recovering zinc oxide comprises the steps of: agglomerating a dust; charging the agglomerate to a molten iron in a melting furnace; collecting a dust generated from the melting furnace; recycling a part of the collected dust and recovering another part of the collected dust. An apparatus for recovering zinc oxide comprises: an agglomeration unit for agglomerating a dust containing iron oxide and zinc oxide; a melting furnace for accepting the agglomerate and for holding the molten iron for reducing the dust; and at least two units of dust collector for collecting the dust containing zinc oxide generated from the melting furnace.

摘要翻译： 回收氧化锌的方法包括以下步骤：使粉尘附聚; 在熔炉中将附聚物装入铁水中; 收集熔炉产生的粉尘; 回收一部分收集的灰尘并回收另一部分收集的灰尘。 回收氧化锌的装置包括：用于使含有氧化铁和氧化锌的粉尘附聚的附聚单元; 用于接收附聚物并用于保持用于减少灰尘的铁水的熔化炉; 以及至少两个集尘器，用于收集由熔化炉产生的含氧化锌的灰尘。

公开(公告)号：US5183495A

公开(公告)日：1993-02-02

申请号：US619759

申请日：1990-11-29

申请人： Tatsuro Ariyama ,  Shinichi Isozaki ,  Kenzo Yamada ,  Masahiro Matsuo ,  Genji Kanatani

发明人： Tatsuro Ariyama ,  Shinichi Isozaki ,  Kenzo Yamada ,  Masahiro Matsuo ,  Genji Kanatani

IPC分类号： C21B13/14

CPC分类号： C21B13/14

摘要： A method for controlling a flow rate of gas for prereducing ore comprises the steps of prereducing ore in a prereduction furnace having a fluidized bed with a gas generated in a smelting reduction furnace and controlling a pressure of gas generated in the smelting reduction furnace and introduced into the prereduction furnace, thereby controlling the actual flow rate of gas introduced into the prereduction furnace. An apparatus for controlling a flow rate of gas for prereducing ore comprises a flow passage for introducing gas generated in a smelting reduction furnace into a prereduction furnace and a gas pressure control valve positioned in the flow passage.

公开(公告)号：US5149487A

公开(公告)日：1992-09-22

申请号：US658781

申请日：1991-02-20

申请人： Masahiro Matsuo ,  Genji Kanatani ,  Hitoshi Kawata ,  Tatsurou Ariyama ,  Jirou Mase ,  Yoshiyuki Kitano ,  Haruhito Tsuboi ,  Shinichi Isozaki

发明人： Masahiro Matsuo ,  Genji Kanatani ,  Hitoshi Kawata ,  Tatsurou Ariyama ,  Jirou Mase ,  Yoshiyuki Kitano ,  Haruhito Tsuboi ,  Shinichi Isozaki

IPC分类号： C21B13/14

CPC分类号： C21B13/14 ,  B01J8/44

摘要： A prereduction furnace of a smelting reduction facility of iron ore includes of a fluidizing prereduction chamber at an upper part of the prereduction furnace wherein iron ores are fed and prereduced, a gas blowing chamber at a lower part of the prereduction furnace wherein a reducing gas is fed, a ceramic main body of a distributor mounted between the fluidizing prereduction chamber and the gas blowing chamber, a metal box attached to the bottom side of the ceramic main body, which prevent adhesion of dust in the reducing gas, nozzles passing through the ceramic main body and through the metal box for injecting the reducing gas in the blowing chamber, into the prereduction chamber and a discharge pipe for discharging prereduced iron ores mounted at a bottom center portion of the prereduction chamber and extending through the ceramic main body, through the metal box, and through a bottom of the gas blowing chamber.

公开(公告)号：US6102982A

公开(公告)日：2000-08-15

申请号：US828654

申请日：1997-03-31

申请人： Shinichi Isozaki ,  Noboru Sato ,  Yoshihito Iwata ,  Noboru Sakamoto

发明人： Shinichi Isozaki ,  Noboru Sato ,  Yoshihito Iwata ,  Noboru Sakamoto

IPC分类号： C22B7/02 ,  C22B19/34 ,  C21B11/00 ,  C22B19/30

CPC分类号： C22B19/34 ,  C22B7/02 ,  Y02P10/232 ,  Y10S75/961

摘要： A method for recovering zinc oxide comprises the steps of: agglomerating a dust; charging the agglomerate to a molten iron in a melting furnace; collecting a dust generated from the melting furnace; recycling a part of the collected dust and recovering another part of the collected dust. An apparatus for recovering zinc oxide comprises: an agglomeration unit for agglomerating a dust containing iron oxide and zinc oxide; a melting furnace for accepting the agglomerate and for holding the molten iron for reducing the dust; and at least two units of dust collector for collecting the dust containing zinc oxide generated from the melting furnace.

摘要翻译： 回收氧化锌的方法包括以下步骤：使粉尘附聚; 在熔炉中将附聚物装入铁水中; 收集熔炉产生的粉尘; 回收一部分收集的灰尘并回收另一部分收集的灰尘。 回收氧化锌的装置包括：用于使含有氧化铁和氧化锌的粉尘附聚的附聚单元; 用于接收附聚物并用于保持用于减少灰尘的铁水的熔化炉; 以及至少两个集尘器，用于收集由熔化炉产生的含氧化锌的灰尘。

公开(公告)号：US5129630A

公开(公告)日：1992-07-14

申请号：US710678

申请日：1991-06-05

申请人： Tatsuro Ariyama ,  Jiro Mase ,  Yoshiyuki Kitano ,  Sakae Arakawa ,  Haruhito Tsuboi ,  Shinichi Isozaki ,  Hitoshi Kawata ,  Genji Kanatani

发明人： Tatsuro Ariyama ,  Jiro Mase ,  Yoshiyuki Kitano ,  Sakae Arakawa ,  Haruhito Tsuboi ,  Shinichi Isozaki ,  Hitoshi Kawata ,  Genji Kanatani

IPC分类号： C21B13/00 ,  C21B13/14

CPC分类号： C21B13/0033 ,  B01J8/1827 ,  B01J8/1836 ,  B01J8/44 ,  C21B13/14 ,  B01J2208/00194 ,  B01J2208/00212 ,  B01J2208/00371 ,  B01J2208/00495

摘要： A prereduction furnace of a smelting reduction facility comprises a fluidizing prereduction chamber in the upper part of the prereduction furnace wherein iron ores are fed and prereduced, a gas blowing chamber installed in the lower part of the prereduction furnace wherein a reducing gas is fed, a distributor for separating the fluidizing prereduction chamber from the gas blowing chamber, and a discharge pipe for discharging the prereduced ore from the fluidizing prereduction chamber. The distributor includes a body of refractory material, a metal plate installed on the bottom of the body, nozzles passing through the body and the metal plate, metallic pipes inserted in the nozzles, and cooling pipes connected to the metal plate. A metallic box may be installed below the metal plate for providing passages for gas flow. A bottom plate may be installed spacedly below the metal plate, with nozzles passing therethrough. The distributor may comprise a rigid thick plate and a refractory layer thereon.