磷酸二铵装置扩能后尾气洗涤系统的技术改造  

Technical transformation of tail gas washing system for DAP plant after capacity expansion

作　　者：葛洪均 雍万旗 

机构地区：[1]甘肃瓮福化工有限责任公司,甘肃金昌737202

出　　处：《磷肥与复肥》2014年第2期27-28,共2页Phosphate & Compound Fertilizer

摘　　要：针对甘肃瓮福公司的磷铵装置扩能改造后尾气洗涤系统严重超负荷、氨逸出率高等问题,对尾气洗涤系统进行了改造。通过新增干燥尾气洗涤系统,将造粒系统尾洗和干燥系统尾洗分开设置,氨耗由245 kg/t下降至217 kg/t,氨排放量由1.14kg/h下降为0.25kg/h,粉尘排放质量浓度由87.3 mg/m3下降为62.5 mg/m3。Based on the serious overload, high ammonia emission rate of tail gas washing system after the capacity expansion of DAP plant in Gansu Wengfu Chemical Co., Ltd, the transformation of the original tail gas washing system is taken. By adding new dry tail gas scrubbing system, tail gas of granulation process and drying process is washed separately, ammonia consumption is reduced from 245 kg/t to 217 kg/t, emissions of ammonia is decreased from 1.14 kg/h to 0.25 kg/h, dust concentration is declined from 87.3 mg/m^3 to 62.5 mg/m^3.

关 键 词：磷酸二铵 尾气洗涤 技术改造 氨耗 

分 类 号：X781.4[环境科学与工程—环境工程]