風速分布モデルによる焼結鉱製造プロセスの解析

概要

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A model for sintering process has been developed and used to analyze the sintering operation and the response time of sintering process to a step-wise change in the pallet speed and the bed height. The unknown parameters are estimated by measuring the gas velocity at 4 points on the sinter strand. (1) The ratio of (flame front speed)/(gas velocity) decreases by increasing coke content and coke diameter. Therefore when they are increased, it is necessary to increase the suction gas velocity in order to keep the flame front speed constant. Consequently it leads to the increase in the quantity of heat transfer from the sinter to the gas at the cooling stage resulting in the rise in the cooling rate. (2) As to the unsteady state of sintering process caused by a step-wise change in the pallet speed and the bed height, the results of model calculation and the actual plant test show a good agreement to some extent. It is confirmed that the model is also valid for the analysis of the unsteady state of sintering process.
社団法人日本鉄鋼協会の論文
1984-10-01