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    • 3. 发明公开
    • 환원철의 제조 방법
    • 用于生产减少金属的方法和装置
    • KR1020050113282A
    • 2005-12-01
    • KR1020057019592
    • 2004-03-11
    • 가부시키가이샤 고베 세이코쇼
    • 도쿠다고지기쿠치쇼이치츠게오사무
    • C21B13/10C22B1/16F27D7/06
    • C21B13/105C21B13/0006C21B13/0073C22B1/245C22B5/10F27B9/16F27D7/06
    • A method for producing reduced iron wherein a raw material feed step of charging a raw material containing a carbonaceous reducing agent and an iron oxides containing material into a rotating hearth furnace, a heating and reduction step of heating said raw material and reducing iron oxides in said raw material, to form reduced iron, a melting step of melting said reduced iron, a cooling step of said molten reduced iron, and a discharging step of discharging said cooled reduced iron to the outside of the furnace are successively carried out in the direction of the movement of the hearth, which comprises providing, in the above furnace, a flow rate adjusting partition wall for controlling the flow of a gas in the furnace, to thereby form the flow of the gas in the furnace in the cooling step along the direction of the movement of the hearth. The above method allows the suitable control of the flow of the outside air (an oxidizing gas) entering from a raw material feeding means, a discharging means or the like, which leads to the solution of a problem that the reduction rate is decreased by said outside air.
    • 一种还原铁的制造方法,其中将含有碳质还原剂和含铁氧化物的原料的原料装入旋转炉床炉中的原料进料步骤,对所述原料进行加热和还原铁氧化物的加热还原步骤 原料,形成还原铁,熔化还原铁的熔融步骤,所述熔融还原铁的冷却步骤,以及将冷却后的还原铁排放到炉外的排出步骤依次在 炉底的运动,其包括在上述炉中设置用于控制炉内气体流动的流量调节分隔壁,从而在沿着冷却步骤的方向在炉中形成气体的流动 的炉膛的运动。 上述方法允许适当地控制从原料供给装置,排放装置等进入的外部空气(氧化气体)的流动,这导致了通过所述压缩机减速的问题的解决方案 外面的空气
    • 4. 发明公开
    • 입상 금속철의 제조방법 및 그 장치
    • 用于生产颗粒金属铁和生产设备的方法
    • KR1020090065550A
    • 2009-06-22
    • KR1020097009789
    • 2007-10-18
    • 가부시키가이샤 고베 세이코쇼
    • 도쿠다고지이토슈조기쿠치쇼이치
    • C21B13/10C21B11/08F27B9/04F27B9/16
    • F27B9/04C21B13/0046C21B13/105F27B9/16F27D7/06
    • A process for producing granular metallic iron by subjecting a raw material mixture comprising both an iron oxide-containing substance and a carbonaceous reducing agent to reduction, which comprises the step of charging the raw material mixture onto the hearth of a shifting-hearth heating/reducing furnace, the step of reducing the iron oxides contained in the raw material mixture with the carbonaceous reducing agent through heating to form metallic iron, melting the metallic iron, and then condensing the molten metallic iron into a granular one while separating the molten metallic iron from slag generated as by-product, and the step of solidifying the resulting metallic iron by cooling, wherein the heating/reducing step is accompanied with the step of controlling the flow rate of atmospheric gas in a prescribed zone of the furnace to a level within a prescribed range. High-quality granular metallic iron can be produced by the process.
    • 一种通过将包含含氧化铁的物质和碳质还原剂的原料混合物进行还原来生产颗粒状金属铁的方法,其包括将原料混合物装入移动炉床加热/还原的炉床上的步骤 炉子,通过加热将碳素还原剂包含在原料混合物中的铁氧化物还原形成金属铁,熔化金属铁,然后将熔融的金属铁冷凝成粒状,同时将熔融金属铁从 作为副产物生成的炉渣以及通过冷却使得到的金属铁凝固的步骤,其中,加热/还原步骤伴随着将炉子的规定区域中的气氛气体的流量控制到炉内的水平的步骤 规定范围。 高质量的颗粒状金属铁可以通过该工艺生产。
    • 5. 发明公开
    • 환원철의 제조 장치
    • 生产减少金属的装置
    • KR1020070087246A
    • 2007-08-27
    • KR1020077017704
    • 2004-03-11
    • 가부시키가이샤 고베 세이코쇼
    • 도쿠다고지기쿠치쇼이치츠게오사무
    • C21B13/10C22B1/16F27D7/06
    • C21B13/105C21B13/0006C21B13/0073C22B1/245C22B5/10F27B9/16F27D7/06
    • A method for producing reduced iron wherein a raw material feed step of charging a raw material containing a carbonaceous reducing agent and an iron oxides containing material into a rotating hearth furnace, a heating and reduction step of heating said raw material and reducing iron oxides in said raw material, to form reduced iron, a melting step of melting said reduced iron, a cooling step of said molten reduced iron, and a discharging step of discharging said cooled reduced iron to the outside of the furnace are successively carried out in the direction of the movement of the hearth, which comprises providing, in the above furnace, a flow rate adjusting partition wall for controlling the flow of a gas in the furnace, to thereby form the flow of the gas in the furnace in the cooling step along the direction of the movement of the hearth. The above method allows the suitable control of the flow of the outside air (an oxidizing gas) entering from a raw material feeding means, a discharging means or the like, which leads to the solution of a problem that the reduction rate is decreased by said outside air.
    • 一种还原铁的制造方法,其中将含有碳质还原剂和含铁氧化物的原料的原料装入旋转炉床炉中的原料进料步骤,对所述原料进行加热和还原铁氧化物的加热还原步骤 原料,形成还原铁,熔化还原铁的熔融步骤,所述熔融还原铁的冷却步骤,以及将冷却后的还原铁排放到炉外的排出步骤依次在 炉底的运动,其包括在上述炉中设置用于控制炉内气体流动的流量调节分隔壁,从而在沿着冷却步骤的方向在炉中形成气体的流动 的炉膛的运动。 上述方法允许适当地控制从原料供给装置,排放装置等进入的外部空气(氧化气体)的流动,这导致了通过所述压缩机减速的问题的解决方案 外面的空气
    • 10. 发明公开
    • 금속철의 제조방법
    • 生产金属铁的方法
    • KR1020050092114A
    • 2005-09-20
    • KR1020057013050
    • 2004-01-16
    • 가부시키가이샤 고베 세이코쇼
    • 기쿠치쇼이치츠게오사무화이튼길버트율드볼커브라이언윌리암
    • C21B13/10C22B1/20
    • C21B13/008C21B13/0006C21B13/0066C21B13/105C22B1/245F27B9/16F27D1/0006Y02P10/136
    • A method for producing metallic iron wherein a mixture containing a carbonaceous reducing agent and iron oxides is supplied onto the hearth of a traveling reduction melting furnace and is heated to reduce and melt the iron oxide and the resultant metallic iron is cooled and then is discharged to the outside of the furnace and recovered, which comprises spreading, in advance, a hearth material having a powdery or granular form all over the hearth into a layer, to form a renewable hearth, prior to the supply of the raw material mixture, removing a part or all of the renewable hearth having been deteriorated in the operation of the furnace, supplying a new hearth material to renew the renewable hearth, leveling out the renewed hearth, and then supplying the above mixture to produce metallic iron. The method allows the easy removal and restoration even when a powder of metallic iron is buried in the surface of the hearth or the hearth is infiltrated or eroded by a slag, which results in the improvement of the availability and the easiness in the maintenance of a hearth and leads to the continuous operation of the hearth for a long period.
    • 一种生产金属铁的方法,其中将含有碳质还原剂和氧化铁的混合物供给到行进还原熔化炉的炉床上,并加热以减少和熔化氧化铁,并将所得的金属铁冷却,然后排放至 炉子外部被回收,其中包括将原料混合物供应之前预先铺在整个炉膛上的具有粉状或颗粒状的炉床材料形成一层,形成可再生的炉床, 部分或全部可再生炉床在炉的操作中已经劣化,提供新的炉床材料以更新可再生炉床,平整更新的炉床,然后供应上述混合物以生产金属铁。 该方法即使当金属铁粉末被埋入炉床表面或炉床被熔渣渗透或侵蚀时也能够容易地去除和恢复,这导致可用性的提高和维护的容易性 炉膛长时间导致炉膛的连续运行。