80万t/a大颗粒尿素装置粉尘洗涤回收系统的改进措施  

Technical Reformation Measures for Powdery Dust Scrubbing and Recovering System in Large Granule Urea Plant with a Capacity of 800 000 t/a

作　　者：王建庆[1] 王怀占[1] 粟升[1] 皮亿蛟[1] 

机构地区：[1]塔里木油田石化分公司,新疆库尔勒841000

出　　处：《化肥设计》2012年第5期46-48,共3页Chemical Fertilizer Design

基　　金：中国石油天然气股份有限公司重大化肥项目

摘　　要：介绍了80万t/a TEC大颗粒尿素装置的工艺流程和粉尘洗涤-尿液回收系统工艺流程;分析了产生尿素粉尘的原因及其影响因素;提出了减少尿素粉尘的改进措施。改进效果表明:造粒系统粉尘量由占生产负荷的7%下降至4%,大颗粒尿素返回蒸发系统的尿液含水量由7.2t/h降低至4.2t/h。Author has introduced the process flow in the TEC large granule urea plant with a capacity of 800 000 t/a and the process flow in the powdery dust scrubbing- urea solution recovery system ; has analyzed the existing cause of powdery dust of urea and its effecting factors ; has presented the improvement measure to reduce the powdery dust of urea. Improvement effeet indicates that powdery dust content in priUing system is reduced from 7% to 4% ,occupied under operating load, water content contained in urea solution for large granule retunaed to evaporation system is reduced from 7.2 t/h to 4.2 t/h.

关 键 词：TEC大颗粒尿素装置 尿素粉尘 洗涤回收 改进措施 

分 类 号：TQ441.41[化学工程—化学肥料工业]