通过对流化床造粒机中尿素颗粒成长时间的分析,分别就床层高度、产品粒度、破碎机破碎晶种粒度、造粒负荷等操作变量对停留时间的影响,提出在尿素颗粒的成长时间不变的情况下,为保证产品粒度分布及产品水含量的高品质产品的生产,为实际生产调节床层高度、床层温度及返料比等操作提供了操作依据。 Based on the analysis of the growth time of urea particles in the fluidized bed granulator, the influences of the operating variables such as bed height, product size, crushed seed size and granulation load on the residence time of the fluidized bed granulator were analyzed respectively. Time unchanged circumstances, in order to ensure product size distribution and product water content of high-quality products for production, for the actual production of the regulation of the bed height, bed temperature and the return of the operation provides the basis for operation.