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1. 发明授权

US09180521B2 Method for producing granular metallic iron 有权
标题翻译：颗粒状金属铁的制造方法
公开(公告)号：US09180521B2
公开(公告)日：2015-11-10
申请号：US13807777
申请日：2011-08-26
申请人： Ryota Misawa , Sumito Hashimoto , Osamu Tsuge
发明人： Ryota Misawa , Sumito Hashimoto , Osamu Tsuge
IPC分类号： C21B13/08 , C21B13/10 , B22F9/30 , C21B13/00 , C21B13/02 , F27B9/16 , F27B9/38 , F27D3/08 , F27D3/00
CPC分类号： B22F9/30 , C21B13/0046 , C21B13/008 , C21B13/023 , C21B13/105 , F27B9/16 , F27B9/38 , F27D3/08 , F27D2003/0004
摘要： The present invention provides a method for producing a granular metallic iron in which an adhesion inhibitor leveler, an agglomerate leveler, a discharger, and the physical state of materials present on the hearth are optimized to thereby enable agglomerate to be spread in a single layer. The agglomerate hence is evenly heat-treated to enable high-quality granular metallic iron to be produced in satisfactory yield.The present invention relates to a method for producing a granular metallic iron, which comprises leveling an adhesion inhibitor fed to the hearth of a moving-bed type hearth reducing melting furnace, feeding an agglomerate including an iron oxide-containing material and a carbonaceous reducing agent onto the adhesion inhibitor, leveling the agglomerate fed onto the adhesion inhibitor, subsequently heating the agglomerate to reduce and melt the iron oxide contained in the agglomerate to produce a granular metallic iron, and discharging the produced granular metallic iron using a screw type discharger, wherein the adhesion inhibitor fed to the hearth is evenly leveled using a screw type adhesion inhibitor leveler so that the leveled adhesion inhibitor has a flatness of 40% or less of an average particle diameter of the agglomerate, and the agglomerate fed onto the adhesion inhibitor is evenly laid using a screw type agglomerate leveler so that the agglomerate forms a single layer.
摘要翻译：本发明提供一种制造粒状金属铁的方法，其中优化粘附抑制剂均化剂，团聚匀整剂，排出剂和在炉床上存在的物质的物理状态，从而使团聚体能够在单层中扩散。因此，附聚物被均匀地热处理以使得能够以令人满意的产率生产高质量的颗粒状金属铁。本发明涉及一种颗粒状金属铁的制造方法，其特征在于，包括使供给到移动床式炉床还原熔融炉的炉床的粘合抑制剂调平，将含有氧化铁的物质和碳质还原剂对附着抑制剂进行调平，对附着抑制剂进料的附聚物进行调平，随后加热附聚物以减少和熔化附聚物中所含的氧化铁以产生粒状金属铁，并使用螺旋式排放器排出所生产的颗粒状金属铁，其中供给到炉床的粘合抑制剂使用螺旋型粘合抑制剂均化器均匀地平整，使得平整粘合抑制剂的平均度为聚集体的平均粒径的40％以下，并且供给到粘合抑制剂上的附聚物均匀使用螺旋型聚集体矫正机，使得附聚物形成单层。

2. 发明申请

US20130098204A1 METHOD FOR PRODUCING GRANULAR METALLIC IRON 有权
标题翻译：生产颗粒金属铁的方法
公开(公告)号：US20130098204A1
公开(公告)日：2013-04-25
申请号：US13807777
申请日：2011-08-26
申请人： Ryota Misawa , Sumito Hashimoto , Osamu Tsuge
发明人： Ryota Misawa , Sumito Hashimoto , Osamu Tsuge
IPC分类号： B22F9/30
CPC分类号： B22F9/30 , C21B13/0046 , C21B13/008 , C21B13/023 , C21B13/105 , F27B9/16 , F27B9/38 , F27D3/08 , F27D2003/0004
摘要： The present invention provides a method for producing a granular metallic iron in which an adhesion inhibitor leveler, an agglomerate leveler, a discharger, and the physical state of materials present on the hearth are optimized to thereby enable agglomerate to be spread in a single layer. The agglomerate hence is evenly heat-treated to enable high-quality granular metallic iron to be produced in satisfactory yield.The present invention relates to a method for producing a granular metallic iron, which comprises leveling an adhesion inhibitor fed to the hearth of a moving-bed type hearth reducing melting furnace, feeding an agglomerate including an iron oxide-containing material and a carbonaceous reducing agent onto the adhesion inhibitor, leveling the agglomerate fed onto the adhesion inhibitor, subsequently heating the agglomerate to reduce and melt the iron oxide contained in the agglomerate to produce a granular metallic iron, and discharging the produced granular metallic iron using a screw type discharger, wherein the adhesion inhibitor fed to the hearth is evenly leveled using a screw type adhesion inhibitor leveler so that the leveled adhesion inhibitor has a flatness of 40% or less of an average particle diameter of the agglomerate, and the agglomerate fed onto the adhesion inhibitor is evenly laid using a screw type agglomerate leveler so that the agglomerate forms a single layer.
摘要翻译：本发明提供一种制造粒状金属铁的方法，其中优化粘附抑制剂均化剂，团聚匀整剂，排出剂和在炉床上存在的物质的物理状态，从而使团聚体能够在单层中扩散。因此，附聚物被均匀地热处理以使得能够以令人满意的产率生产高质量的颗粒状金属铁。本发明涉及一种颗粒状金属铁的制造方法，其特征在于，包括使供给到移动床式炉床还原熔融炉的炉床的粘合抑制剂调平，将含有氧化铁的物质和碳质还原剂对附着抑制剂进行调平，对附着抑制剂进料的附聚物进行调平，随后加热附聚物以减少和熔化附聚物中所含的氧化铁以产生粒状金属铁，并使用螺旋式排放器排出所生产的颗粒状金属铁，其中供给到炉床的粘合抑制剂使用螺旋型粘合抑制剂均化器均匀地平整，使得平整粘合抑制剂的平均度为聚集体的平均粒径的40％以下，并且供给到粘合抑制剂上的附聚物均匀使用螺旋型聚集体矫正机，使得附聚物形成单层。

3. 发明申请

US20120103136A1 APPARATUS AND METHOD FOR PRODUCING REDUCED IRON FROM ALKALI-CONTAINING IRONMAKING DUST SERVING AS MATERIAL 审中-公开
标题翻译：用于生产含碱金属粉末的还原铁的装置和方法
公开(公告)号：US20120103136A1
公开(公告)日：2012-05-03
申请号：US13379253
申请日：2010-07-21
申请人： Takeshi Sugiyama , Shohei Yoshida , Kyoichiro Fujita , Ryota Misawa
发明人： Takeshi Sugiyama , Shohei Yoshida , Kyoichiro Fujita , Ryota Misawa
IPC分类号： C21B11/08 , F27B3/06
CPC分类号： C22B1/243 , C21B13/105 , C22B1/245 , C22B5/10 , C22B7/02 , Y02P10/136 , Y02P10/216
摘要： Provided is a movable hearth furnace for thoroughly removing alkali metal elements and producing high-strength reduced iron when producing reduced iron using iron production dust containing alkali metal elements in a movable hearth furnace. The movable hearth furnace comprises: a reduction zone for heating and reducing a carbon composite briquette (C) to produce a reduced briquette (D) having an iron metallization rate of 80% or greater; an alkali removal zone, disposed after the reduction zone, for heating the reduced briquette in a reducing atmosphere and removing the alkali metal elements from the reduced briquette to obtain an alkali-free reduced briquette; and a strengthening zone, disposed after the alkali removal zone, for heating the alkali-free reduced briquette in an oxidizing atmosphere and raising the crushing strength of the alkali-free reduced briquette to produce reduced iron product.
摘要翻译：提供一种可动床式炉，用于在可移动的炉床中使用含有碱金属元素的铁生产粉尘，在生产还原铁时彻底去除碱金属元素并生产高强度还原铁。可移动炉床炉包括：用于加热和还原碳复合团块（C）的还原区，以产生铁金属化率为80％或更高的还原团块（D）; 设置在还原区之后的碱去除区，用于在还原气氛中加热还原的团块，并从还原的团块中除去碱金属元素，得到无碱还原团块; 以及在除碱区域之后设置的加强区，用于在氧化气氛中加热无碱还原团块，提高无碱还原团块的破碎强度，生成还原铁产品。

4. 发明申请

US20120240725A1 CARBON COMPOSITE AGGLOMERATE FOR PRODUCING REDUCED IRON AND METHOD FOR PRODUCING REDUCED IRON USING THE SAME 审中-公开
标题翻译：用于生产减少铁的碳组合物聚合物和使用其生产还原铁的方法
公开(公告)号：US20120240725A1
公开(公告)日：2012-09-27
申请号：US13386158
申请日：2010-07-21
申请人： Takeshi Sugiyama , Shohei Yoshida , Kyoichiro Fujita , Ryota Misawa
发明人： Takeshi Sugiyama , Shohei Yoshida , Kyoichiro Fujita , Ryota Misawa
IPC分类号： C21B15/00
CPC分类号： C22B7/02 , C21B13/0066 , C22B1/243 , C22B1/245 , Y02P10/136 , Y02P10/212
摘要： Provided is a carbon composite briquette which is used as the raw material of a movable hearth furnace for producing reduced iron having a sufficient carbon content and a higher crushing strength, and also provided is a method for producing reduced iron using the carbon composite briquette. The carbon composite briquette for producing reduced iron has a total SiO2+Al2O3+CaO+MgO content that is between 7 and 15 mass %; an MgO content that is between 0.1 and 6 mass %; an Al2O3/SiO2 mass ratio that is between 0.34 and 0.52; a CaO/SiO2 mass ratio that is between 0.25 and 2.0; and a C content such that between 1 and 9 mass % of C is retained in the resulting reduced iron.
摘要翻译：本发明提供一种碳复合团块，其用作生产具有足够碳含量和较高抗碎强度的还原铁的可移动炉底炉的原料，并且还提供了使用碳复合团块制造还原铁的方法。用于生产还原铁的碳复合煤块的总SiO 2 + Al 2 O 3 + CaO + MgO含量为7〜15质量％。 0.1〜6质量％的MgO含量; Al2O3 / SiO2质量比在0.34和0.52之间; 在0.25和2.0之间的CaO / SiO 2质量比; 并且C含量使得在所得的还原铁中保留1至9质量％的C。

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