中南大学学报（自然科学版）2011，Vol.42Issue(5)：1175-1180,6.
新生Fe2O3对磁铁精矿预热球团强度的影响
Effect of neonatal Fe2O3 on preheated magnetite concentrate pellets strength
摘要
Abstract
The mass fraction of neonatal Fe2O3 generated through the preheating process was calculated according to the mass loss of magnetite concentrate in air and neutral atmosphere. The effect of preheating temperature and time on the mass fraction of neonatal Fe2O3 and the impact of neonatal Fe2O3 mass fraction on compressive and drum strength of preheated pellets were discussed. The results show that improving the preheating temperature, the mass fraction of neonatal Fe2O3 and compressive strength of the preheated pellets increase rapidly when the mass fraction of neonatal Fe2O3 is more than 50％. Compressive strength is more than 400 N per pellet. The mode of neonatal Fe2O3 crystallization is transformed from crystallize between adjoining mineral particles to diffusive migration between adjacent oxide and form Fe2O3 connecting bridge, and the strength of preheated pellets increases rapidly.关键词
磁铁精矿/球团/预热球强度/Fe2O3分类
矿业与冶金引用本文复制引用
黄柱成,吕丽丽,朱良柱,姜涛..新生Fe2O3对磁铁精矿预热球团强度的影响[J].中南大学学报（自然科学版）,2011,42(5):1175-1180,6.基金项目
国家杰出青年科学基金资助项(50725416) （50725416）
