大型湿法磷酸萃取尾气洗涤系统改造  

Transformation of tail gas washing system in large-scale wet-process phosphoric acid plant

作　　者：和彦 

机构地区：[1]云南三环中化化肥有限公司磷酸厂,云南昆明650113

出　　处：《磷肥与复肥》2015年第9期28-30,48,共4页Phosphate & Compound Fertilizer

摘　　要：针对大型湿法磷酸萃取尾气洗涤系统结垢堵塞,分析其原因,并实施改造,包括合理的工艺安排,更换文丘里洗涤器为管道洗涤器,增大喷淋洗涤流量。改造后,解决了喷淋系统堵塞,提高了洗涤效率,延长了装置运行周期(由45 d延长至60 d),提高了装置产量,降低了电耗;年节省清理费用1.2万元,年节电效益达4.8万元,具有较好的经济效益。Based on the blockage and scaling of tail gas washing system in large-scale wet-process phosphoric acid plant, the causes are analyzed, and some transformation measures are taken including reasonable process arrangement, using pipe scrubber instead of venturi scrubber, increasing spray washing flow. After the transformation, the blockage of tail gas washing system is solved, the washing efficiency is improved, the production cycle is prolonged from 45 d to 60 d, the yield is increased, the power consumption is decreased ; the benefits of saving clearing expense and power are respectively of 12 thousand and 48 thousand RMB Yuan per year, so it has the good economic benefit.

关 键 词：大型湿法磷酸装置 尾气洗涤系统 洗涤器 结垢堵塞 原因分析 措施 

分 类 号：X781.3[环境科学与工程—环境工程]