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介绍在大型磷酸二铵装置上实行磷酸二铵与粒状磷酸一铵在线双向快速切换生产的操作方法;阐述管式反应器的操作与控制方式及吹扫、在线酸洗等延长管式反应器运行周期的维护方法,以保持其优良的造粒性能。
This article introduces the operation method of on-line bidirectional rapid switching production of diammonium phosphate and granular ammonium monoammonium phosphate on a large-sized DAP plant. It also expounds the operation and control mode of the tubular reactor and the operation of purging and on-line pickling to extend the operation of the tubular reactor Cycle maintenance methods to maintain their excellent granulation properties.