我院于1977～1980年曾进行过纵置式轴流滚筒的工作过程、分离物分布规律、生产率概算公式及谷物轴流速度等方面的研究。为了进一步探讨谷物在轴流滚筒内部的运动规律,于1982年10月组织了这次以原子示踪技术测定方法的试验,所测定的内容为: 1.测定谷物在滚筒内部的速度分布; 2.测定谷物通过滚筒的时间; Our hospital from 1977 to 1980 had carried out the longitudinal axis of the drum work process, the distribution of isolates, the formula for calculating the productivity and grain axial velocity and other aspects of the study. In order to further investigate the movement of grain inside the axial drum, this test was conducted in October 1982 using the method of atomic tracing. The measured contents are: 1. Determination of the grain velocity distribution inside the drum; 2 Determination of the time it takes for grain to pass through the drum;