无轴螺旋管式反应器在磷酸二铵生产中的应用  

Application of non axial spiral tube reactorin production of DAP

作　　者：陈泽恩 CHEN Zeen(Wengfu Zijin Chemical Co.,Ltd.,Longyan 361000,China)

机构地区：[1]瓮福紫金化工股份有限公司,福建龙岩361000

出　　处：《磷肥与复肥》2024年第3期43-44,共2页Phosphate & Compound Fertilizer

摘　　要：以净化磷酸副产萃余酸为原料,采用管式反应器工艺生产磷酸二铵时,管式反应器结垢较快,影响生产。分析管式反应器结垢原因,采用无轴螺旋管式反应器替代原普通管式反应器,并计算其节能效果和经济效益。用螺旋刮除替代蒸汽去除结垢,保证磷酸二铵生产的连续性,减少装置空载运行时间,生产效率提升12%,节能率达16%以上,年节约费用281.6万元。When DAP is produced with residual acid produced from phosphoric acid purification with tube reactor process,scaling occurs quickly in the tube reactor,which affects production.The causes of scaling in the tube reactor is analyzed,a non axial spiral tube reactor is used to replace the ordinary tube reactor,and its energy-saving effect and economic benefits are calculated.By using spiral scraping instead of steam to remove scaling,the continuity of DAP production is ensured,reducing the idle operation time,production efficiency is increased by 12%,energy-saving rate is more than 16%,saving 2.816 million RMB Yuan in annual costs.

关 键 词：磷酸二铵 无轴螺旋管式反应器 除垢 节能 经济效益 

分 类 号：TQ440.52[化学工程—化学肥料工业]