国内采用浓缩磷酸法生产的粉状磷酸一铵普遍存在结块缺陷 ,云南三环化工有限公司通过技术攻关解决了此问题。文章对粉状磷酸一铵结块的原因进行了分析 ,并结合生产实际 ,提出解决结块的重点是 :减少产品比表面积 ,降低产品游离水分和包装温度。介绍试验研究情况、解决结块的方法和运用到工业生产中取得的效果 The domestic use of concentrated phosphoric acid production of powdered monoammonium phosphate caking defects generally exist, Yunnan Sanhuan Chemical Co., Ltd. through technical research to solve this problem. In this paper, the reasons for the agglomeration of powdered monoammonium phosphate are analyzed. The key points to solve the agglomeration are put forward according to the actual production: to reduce the specific surface area of ​​the product and to reduce the free moisture and packaging temperature of the product. Introduce the experimental research, solve the clumping method and the effect of using it in industrial production