<報文>結合水を含有する非焼成ペレットの乾燥と伝熱解析

概要

論文の詳細を見る
Attention has been focussed on nonfired pellets used in ironmaking industries from the point of view of energy saving. The nonfired pellets contain both combined water and free water in the unfired condition. The combined water decomposes at elevated temperature and exerts an influence on the temperature distribution in a reactor due to the heat of dehydration. Drying experiments and heat transfer analysis were carried out by using single pellets and by using a moving bed laboratory scale reactor. As a result, a mechanism and a drying rate equation for removal of combined water in the nonfired pellets were proposed, and then a mathematical model derived for explaining the drying phenomena. This model was also applied to the moving bed reactor. Operating conditions were examined in order to predict the optimal temperature distribution in the reactor.ironmakingdirect reductionnonfired pelletdryingheat transfer analysiscombined waterthermal-dehydrationmoving bed reactorthermal flow ratio
東北大学の論文
1989-03-25