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湖北大峪口化工有限责任公司磷酸一铵装置采用料浆法工艺生产,该工艺通常采用一级酸洗法处理造粒干燥尾气,氟逸出率较大。经技改采用一级酸洗、二级水洗两级复合洗涤法,并对工艺参数进行调整,改造后尾气中的ρ(F)从90.7 mg/m3降为3.2 mg/m3,满足国家标准要求。
Hubei Meiyukou Chemical Co., Ltd. monoammonium phosphate plant slurry technology used in the production process, the process is usually used to deal with granulation of a dry pick-off exhaust, fluoride greater rate of escape. The technical transformation uses a pickling, two washing two compound washing method, and the process parameters are adjusted, the tail gas ρ (F) from 90.7 mg / m3 down to 3.2 mg / m3, to meet the national standards .