会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • 3-Stage fluidized bed type fine iron ore reducing apparatus having
x-shaped circulating tubes
    • 用于还原细铁矿石的3阶段流化床还原装置
    • US6110413A
    • 2000-08-29
    • US125557
    • 1998-08-20
    • Uoo Chang JungNag Joon ChoiHeung Won KangHang Goo Kim
    • Uoo Chang JungNag Joon ChoiHeung Won KangHang Goo Kim
    • C21B13/00C21B13/02C21B13/14F27B15/00C22B1/10
    • C21B13/002C21B13/14Y02P10/136Y02P10/216Y02P10/265Y02P10/283
    • A 3-stage fluidized bed type iron ore reducing apparatus having X shaped circulating tubes is disclosed for forming a gas pore fluidizing layer of a fine iron ore, and for drying/pre-heating it to reduce it, so that the gas utilization rate and the reducing rate can be improved, as well as decreasing the gas consumption rate. The present invention relates to a 3-stage fluidized bed type iron ore reducing apparatus having X shaped circulating tubes comprising: a shaft type single type first fluidized bed furnace where a raw fine iron ore is dried and pre-heated in a bubbling fluidization state; a first cyclone for collecting fine iron ore particles from a exhaust gas of said first fluidized bed type furnace; a shaft type single type second fluidizing bed furnace where the dried and pre-heated fine iron ore is pre-reduced in a bubbling fluidization state; a second cyclone for separating the fine iron ore particles from a exhaust gas from said second fluidizing bed type furnace so as to re-circulate them; a twin type third fluidized bed furnace consisting of a first reaction furnace and a second reaction furnace, for separating the pre-reduced iron ore from said second fluidized bed type furnace into coarse particles and medium/fine particles so that the coarse particles and medium/fine particles ore finally reduced in separate reactors in bubbling fluidization states; and a third cyclone for separating fine iron ore particles from the exhaust gas of said second reaction furnace of said third fluidized bed type furnace so as to re-circulate them to said first reaction furnace.
    • PCT No.PCT / KR97 / 00275 Sec。 371日期:1998年8月20日 102(e)1998年8月20日PCT 1997年12月19日PCT PCT。 公开号WO98 / 28449 日期:1998年7月2日公开了一种具有X形循环管的三级流化床型铁矿石还原装置,用于形成细铁矿石的气孔流化层,并用于干燥/预加热以减少其,使得 可以提高天然气利用率和降低率,降低气体消耗率。 本发明涉及一种具有X形循环管的三级流化床型铁矿石还原装置,包括:一种轴型单式第一流化床炉,其中生细铁矿石在发泡流化状态下被干燥和预热; 用于从所述第一流化床型炉的废气中收集细铁矿石颗粒的第一旋风器; 一种轴型单式第二流化床炉,其中干燥和预热的细铁矿石在发泡流化状态下预还原; 第二旋风分离器,用于从所述第二流化床式炉中分离细铁矿石颗粒与废气,以使其再循环; 由第一反应炉和第二反应炉组成的双相型第三流化床炉,用于将预还原的铁矿石与所述第二流化床型炉分离成粗颗粒和中/细颗粒,使得粗颗粒和介质/ 在分离的反应器中,细粉矿石最终在起泡流化状态下减少; 以及第三旋风分离器,用于从所述第三流化床型炉的所述第二反应炉的废气中分离细铁矿石颗粒,以使其再循环到所述第一反应炉。
    • 7. 发明授权
    • Apparatus for reducing fine iron ore
    • 减少铁矿石的设备
    • US5897829A
    • 1999-04-27
    • US894802
    • 1997-08-28
    • Hang Goo KimIl Ock LeeUoo Chang ChungYong Ha Kim
    • Hang Goo KimIl Ock LeeUoo Chang ChungYong Ha Kim
    • C21B11/00C21B13/00C21B13/14F27B15/00
    • C21B13/14C21B13/0033Y02P10/136
    • A device for three-stage fluidized bed for reducing a fine iron ore in accordance with the present invention comprises: a first single-type fluidized bed furnace for drying/pre-heating a fine iron ore in a bubbling fluidized state; a first cyclone for collecting fine iron ore particles entrained in an exhaust gas from the first fluidized bed furnace; a second single-type fluidized bed furnace for pre-reducing the fine iron ore dried/pre-heated in the first fluidized bed furnace; a second cyclone for collecting fine iron ore particles entrained in an exhaust gas from the second fluidized bed furnace; a third twin-type fluidized bed furnace comprising a first cylindrical reaction furnace and a second reaction furnace for finally reducing coarse iron ore particles and medium/fine iron ore particles, respectively, which are pre-reduced in the second fluidized bed furnace; a third cyclone for collecting medium/fine iron ore particles entrained in an exhaust gas from the first reaction furnace of the third fluidized bed furnace; and a fourth cyclone for collecting ultrafine iron ore particles entrained in an exhaust gas from the second furnace of the third fluidized bed furnace.
    • PCT No.PCT / KR96 / 00261 Sec。 371日期1997年8月28日 102(e)日期1997年8月28日PCT 1996年12月28日PCT公布。 WO97 / 24463 PCT出版物 日本1997年7月10日根据本发明的用于还原精细铁矿石的三级流化床装置包括:用于干燥/预热起泡流化状态的细铁矿石的第一单式流化床炉 ; 用于收集夹带在来自第一流化床炉的废气中的细铁矿石颗粒的第一旋风器; 用于预还原在第一流化床炉中干燥/预热的细铁矿石的第二单流化床炉; 第二旋风器,用于收集夹带在来自第二流化床炉的废气中的细铁矿石颗粒; 第三双流化床炉,包括分别在第二流化床炉中预还原的第一圆柱反应炉和第二反应炉,用于最终还原粗铁矿石颗粒和中/细铁矿石颗粒; 用于收集夹带在来自第三流化床炉的第一反应炉的废气中的中/细铁矿石颗粒的第三旋风分离器; 以及第四旋风分离器,用于收集夹带在来自第三流化床炉的第二炉的废气中的超细铁矿石颗粒。
    • 8. 发明授权
    • Fluidized bed type reducing system for reducing fine iron ore
    • 用于还原细铁矿石的流化床型还原系统
    • US06224819B1
    • 2001-05-01
    • US09125549
    • 1998-08-27
    • Yong Ha KimIl Ock LeeHang Goo Kim
    • Yong Ha KimIl Ock LeeHang Goo Kim
    • C22B110
    • C21B13/0033Y02P10/136Y02P10/216
    • A fluidized bed reducing system for reducing a fine iron ore is disclosed, in which the structure of the fluidized bed reducing furnace is improved such that the coarse iron ore particles are distributed in the lower portion of the fluidized bed within the furnace and the fine iron ore particles are distributed in the upper portion of the fluidized bed. Thus, the average residence times of the particles in the furnace are adjusted differently for different ore sizes, so that the reducing efficiency can be improved, and that the residence time of the reducing gas in the furnace can be extended, thereby improving the degree of gas utilization. The fluidized bed reducing system for reducing a fine iron ore includes: an upper iron ore outlet for discharging fine iron ore particles; a lower iron ore outlet for discharging coarse iron ore particles; a gas distributor installed in a lower portion of a reducing furnace; a gas inlet formed on a lower portion of the reducing furnace for introducing a reducing gas; an iron ore inlet for supplying an iron ore of wide particle size distribution; a circulating duct connected to an upper portion of the reducing furnace for discharging extremely fine iron ore particles together with the reducing gas; a particle capturing device an extremely fine iron ore recycling duct. The fluidized bed reducing furnace includes a cylindrical upper portion and a tapered lower portion, the tapered portion being in a wide-upper-narrow-lower shape.
    • 公开了一种用于还原细铁矿石的流化床还原体系,其中流化床还原炉的结构得到改善,使得粗铁矿石颗粒分布在炉内的流化床的下部,细铁 矿石颗粒分布在流化床的上部。 因此,对于不同的矿石尺寸,对炉中的颗粒的平均停留时间进行不同的调节,从而可以提高还原效率,并且可以延长还原气体在炉中的停留时间,从而提高 天然气利用。 用于还原细铁矿石的流化床还原系统包括:用于排出细铁矿石颗粒的上铁矿石出口; 用于排出粗铁矿石颗粒的下铁矿石出口; 安装在还原炉的下部的气体分配器; 气体入口,形成在所述还原炉的下部,用于引入还原气体; 用于供应宽粒度分布的铁矿石的铁矿石入口; 与还原炉的上部连接的循环管道,用于与还原气体一起排出极细的铁矿石颗粒; 颗粒捕获装置是极细的铁矿石循环管道。 流化床还原炉包括圆柱形上部和锥形下部,锥形部分处于宽 - 上 - 下 - 窄 - 下形状。