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针对我国近10年复合肥发展特点,评述复合肥几种主要工艺流程优缺点,复合肥装置工艺流程要根据建设条件扬长避短科学设计,对硫基氮磷钾复合肥的增氮措施,尿基氮磷钾复合肥设计中尿素加入方式,一段还是二段干燥,是热筛分还是冷筛分,冷却用转筒还是流化床等问题及几种建设方案进行了比较和总结。
According to the development characteristics of compound fertilizers in recent 10 years in our country, the advantages and disadvantages of several main technological processes of compound fertilizers are reviewed. The technological process of compound fertilizer plants should be based on the scientific conditions of building up and avoiding shortages. In the design of P and K compound fertilizers, urea is added in one or two stages of drying, whether it is hot screening or cold screening, cooling drum or fluidized bed, and several construction schemes are compared and summarized.