【摘要】 介绍我国自行开发的第一套大型硫基ＮＰＫ复合肥示范装置的工艺流程。该技术将生产磷酸、磷铵及生产硫酸钾的技术有机地结合起来，可制得规格为１５—１５—１５的粒状硫基ＮＰＫ复合肥。该文较详细地阐述了ＫＣｌ转化制备硫酸氢钾、氨中和、喷浆造粒干燥、固体物料处理、尾气洗涤处理等工序的工艺技术及特点，列举了消耗定额、产品成本、装置投资等技术经济指标。更多还原

【Abstract】 The paper introduces the originality process of largescale Sbased NPK model project,which combines the technologies such as phosphoric acid, ammonium phosphate and sulfate of potash to obtain 15-15-15 granular product, including transformation,neutralization,granulation, dehydration,solid material disposal and vent gas disposal etc. technological characteristics as well as consumption quota, cost and investment etc. technoeconomic indexes.更多还原