料浆法磷铵生产乏汽的利用  

Utilization of exhausted steam in ammonium phosphate production by slurry concentrated process

作　　者：付勇 张晓迁 

机构地区：[1]瓮福(集团)有限责任公司瓮福磷肥厂,贵州福泉550501

出　　处：《磷肥与复肥》2014年第2期49-50,共2页Phosphate & Compound Fertilizer

摘　　要：通过改造利用磷铵生产中反应-蒸发浓缩产生的低位热能乏汽（80～90 ℃）替代蒸汽完成料浆浓缩、液氨蒸发任务,同时降低末端温度至20～50℃,从而使氨化反应机料浆浓缩的低位热能得到综合利用.改造后节约低压蒸汽4t/h,全年节标煤2 851.2 t.The transformation of utilization of low temperature exhausted steam （80-90 ℃ ） instead of steam in ammonium phosphate production by slurry concentrated is carried out to achieve slurry concentrated and liquid ammonia evaporation, and the end temperature is reduced to 20- 50 ℃, then the low temperature thermal energy from ammonolysis reaction and slurry concentrated is comprehensive utilized. After transforming, the low pressure steam of 4 t/h is saved, and the standard coal of 2 851.2 t is saved every year.

关 键 词：料浆法磷铵 乏汽利用 蒸发液氨 节能 

分 类 号：X781[环境科学与工程—环境工程] TQ442.14[化学工程—化学肥料工业]