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安徽新中远化工科技有限公司根据市场的需要对产能100 kt/a的w(总养分)55%粉状磷酸一铵(MAP)生产装置进行了节能扩产技术改造。分别介绍了磷矿破碎、磷酸萃取、成品磷酸处理、中和浓缩、干燥等工序的扩能技改措施。通过改造,消除了生产瓶颈,粉状磷酸一铵产量提高了67%,年增加产量达50 kt,吨产品节水、节电效益为27.4元,年增加效益达1 500万元。
According to the needs of the market, Anhui New COSCO Chemical Technology Co., Ltd. reformed the energy-saving and expansion technology of w (total nutrients) 55% powdered MAP plant with a capacity of 100 kt / a. The paper introduces the technical measures to expand the capacity of phosphate rock, phosphoric acid extraction, finished phosphoric acid treatment, neutralization and concentration, and drying respectively. Through the transformation, the bottleneck of production was eliminated. The output of powdered monoammonium phosphate was increased by 67% and the annual output was increased by 50 kt. The water-saving per ton of product was 27.4 yuan and the annual profit increase was 15 million yuan.