The influence of air leakage on the working performance of Humboldt cyclone preheater and the motion of raw meal in it were studied.

• Smidth新型旋风预热器的物料停留时间分布及其特点,探讨了漏风对旋风预热器内物料运动状况及工作特性的影响,取得了令人满意的效果。