【摘要】 对尿素─普钙系颗粒复混肥挤压造粒生产过程的影响因素及其变化规律进行了研究，在单困素实验基础上进行了正变试验，确定了各影响因素对过程影响的大小顺序及适宜的操作范围。更多还原

【Abstract】 Affecting factors and its variation rules on extrusion granulation of urea-superphosphate granular com pound fertilizer are studied. Orthogonal tests are made on the basis of a single factor experiment, and the impor tance order of factors affecting process and suitable operation scope are determined.更多还原