발간논문

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Vol.30, No.9, 1037 ~ 1047, 1992
Title
Kinetic Modelling of Smelting Reduction Reaction in the In - Bath Smelter
주상훈S . Joo, 민동준D . J . Min, 김태도T . D . Kim, 정원섭W . S . Chung, 이일옥I . O . Lee
Abstract
For the development of a smelting reduction process, the kinetic approach to the reduction reaction is needed to evaluate the productivity of the process. In the present study, a theoretical kinetic model was established for the smelting reduction reactions of molten iron oxide in liquid slag. The caluculated results using this model were well agreed with the experimental results reported. The overall reduction rate was increased with the increases of seed slag volume, residual coal amount in slag, and iron oxide concentration in slag. The input coal size and bath stirring intensity also can give an effect to the reduction rate. From the present kinetic model, it was estimated that the annual iron productivity of one million can be achieved with the optimum operating conditions in a smelting furnace with capacity of 300 tonnes per a charge when the prereduced iron ore of 60% PRD be used for the smelting reduction.
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