尿素蒸发系统优化操作及技术改造  

OPTIMIZATION OF UREA EVAPORATION SYSTEM AND TECHNICAL REFORMATION

作　　者：姚刚 姜磊 Yao Gang;Jiang Lei(Yankuang Group Xinjiang Coal Chemical Co.,Ltd.,Urumuqi 830011)

机构地区：[1]兖矿新疆煤化工有限公司

出　　处：《大氮肥》2019年第3期172-173,共2页Large Scale Nitrogenous Fertilizer Industry

摘　　要：通过对尿素装置一、二段蒸发加热器进行堵管、增加分布器等技术改造,使尿素产品缩二脲含量降至0.9%以下,达到GB/T 2440—2017农业优等品水平。A technical reformation on urea plant by plugging the tube and increasing the number of distributer in primary and secondary evaporator heater to reduce the content of biuret to less than 0.9% in urea product was carried out to meet the requirement of agricultural super grade in GB/T 2440—2017.

关 键 词：蒸发加热器 堵管 分布器 缩二脲含量 

分 类 号：TQ441.41[化学工程—化学肥料工业]