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磷铵生产能力由 6万吨 /年提高到 8万吨 /年 ,由于浓缩系统绝大部分设备与管线未改 ,给生产带来一系列问题。为提高 P2 O5收率 ,降低硫酸、磷矿消耗 ,对翻盘式过滤机过滤面的分配进行调整、加大浓缩真空度 ,稀磷酸浓度提高 0 .5% P2 O5,磷酸生产消耗降低。改造后 2个月获得 30多万元的直接经济效益。
The production capacity of ammonium phosphate was increased from 60,000 tons / year to 80,000 tons / year. As most of the equipment and piping in the enrichment system have not been changed, a series of problems have been brought to the production. In order to increase the yield of P2 O5 and reduce the consumption of sulfuric acid and phosphate rock, adjust the distribution of the filter surface of the pan filter, increase the concentration of vacuum, increase the concentration of dilute phosphoric acid by 0.5% P2 O5, and reduce the consumption of phosphoric acid. 2 months after the transformation received more than 30 million direct economic benefits.