氨法脱硫技术在硫磺制酸装置中的应用

Application of ammonia desulphurization technology in sulphur-burning sulphuric acid plant

介绍了硫磺制酸装置中氨法脱硫系统工艺原理及流程。针对脱硫系统运行过程中存在的尾气排放口拖尾、预脱硫段运行不正常、脱硫塔喷嘴容易堵塞等问题提出了解决措施。改造后,尾气排放外观控制在出排气口30 m范围内消失,减少了氨逃逸,提高了氨利用率,尾气排放达到了国家和地方的排放标准。

The technological principle and process of ammonia desulphurization system in sulphur-burning sulphuric acid plant are introduced.Aiming at the problems existing in the operation of desulphurization system, such as tail gas discharge tail, abnonnal opera- tion of pre desulphurization section, easy blockage of desulphurization tower nozzle and so on, solutions are put torward. After the trans- tonnation, the appearance control of the exhaust emission disappeared in the range of about thirty meters, the escape of ammonia is re- duced, the utilization of ammonia is improved and exhaust emissions reach national and local emission standards.