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介绍瓮福磷肥厂在湿法磷酸生产中,取消磷矿浆浓密工序,直接采用从选矿厂超远距离输送来含固量仅60%的稀矿浆进行生产的技改措施[稀酸P2O5质量分数控制26%左右,萃取温度提高5℃,控制(79±1)℃]及其应用效果(磷石膏中水溶P2O5仅提高0.026%,1h增加72.8kgP2O5损失,但省略浓密过程可节支530元,二者相抵,年效益达350万元)。
Introduction Wengfu phosphate fertilizer plant in wet-process phosphoric acid production, the abolition of phosphate slurry thick process, directly from the ore dressing plant ultra-long-distance transport to the solid content of only 60% of lean pulp production technical measures [dilute acid P2O5 mass fraction Control of about 26%, extraction temperature increased by 5 ℃, control (79 ± 1) ℃] and its application effect (phosphogypsum water soluble P2O5 increased only 0.026%, 1h increased 72.8kgP2O5 loss, but omitted the thick process can save 530 yuan, The two offset, the annual benefit of 3.5 million yuan).