本文介绍了以石英砂为床料,烟煤颗粒、煤泥球和矸石为示踪粒子,在10t/h工业沸腾炉上进行颗粒扩散试验的研究结果,利用扩散模型进行了数据处理,并考察了沸腾风速、示踪粒子粒径和静止料层高度对横向扩散系数的影响,提出了颗粒在沸腾床内扩散的简化数学模型和计算公式,计算结果与试验结果较一致。 In this paper, the results of particle diffusion tests using quartz sand as bed material, bituminous coal particles, slime balls and waste rock as tracer particles in a 10t / h industrial boiling furnace were introduced. The data were processed by diffusion model and the effects of boiling Wind speed, tracer particle size and static bed height on the lateral diffusion coefficient, a simplified mathematical model and calculation formula for the particle diffusion in the ebullated bed are proposed. The calculation results are in good agreement with the experimental results.