通过分析天然气净化厂硫磺回收系统生产现状，针对络合铁硫磺回收工艺中硫磺浆管线容易出现硫磺沉积堵塞的问题，对生产工艺流程进行优化和改造，保证硫磺回收系统的正常运行，达到降低酸气放空次数、保护环境、减少装置的非正常停机时间、提高天然气处理量的目的。

Current production status of sulfur recovery system in natural gas purification plant is analyzed.To address the problem that sulfur deposition often blocks sulfur slurry pipelines in lo-cat sulfur recovery process,the production process is optimized and renovated to guarantee the normal operation of sulfur recovery system and achieve the goals of reducing the number of acid gas emptying,protecting the environment,decreasing the abnormal shutdown time of the plant,and increasing the capacity of natural gas treatment.