| 摘要 |
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, whi ch 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 th e 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.
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