발간논문

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Vol.35, No.12, 1724 ~ 1734, 1997
Title
A Mathematical Model of Rotary kiln for the Calcination of Limestone
이만승 M . S . Lee
Abstract
A mathematical model of the rotary kiln for the calcination of limestone was developed by considering the reaction rate of calcination, mass and energy balance of solid and gas. A system of strongly nonlinear ordinary differential equations and algebraic equations with two point boundary conditions were solved by iterative algorithm. The measured outlet temperature of gas and calculated combustion temperature by K-value method were used as boundary conditions. By applying this developed model, the axial temperature profiles of gas, solid bed and wall and the axial concentration profiles of solid and gas were calculated from operating conditions. The temperature of outer wall and CaCO₃ conversion calculated by model were in good agreement with those measured from running rotary kiln at Kwangyang Steel Works.
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