Abstract:

A rotary retorting reactor was designed and built for studying the mixing behavior of particulate oil shale and granular solid heat carrier. The sample coefficient of variation（cv，%）of mass percent of oil shale at the rotary retorting outflow was taken as mixing index. Mixing index was calculated at different work conditions（2 percentages of vessel filling，2 types of lifting flight，2 vessel dip angles and 5 different rotating speeds）. Comparison and analysis the variation trend of mixing index and mixing mechanism showed that the mixing degree with right-angle lifting flight was better at 20% vessel filling and 3.24°dip angle and convective mixing played a major role.