Abstract:The sulfur dioxide blower is an important equipment for the delivery of sulfur dioxide flue gas during the daily production of the smelter. The equipment is imported from Howden, Germany. The operating status of the sulfur dioxide fan will directly affect the production tasks of the smelter in the daily production. After years of production, the 2# auxiliary oil pump of the 4# sulfur dioxide blower runs abnormally, resulting in pressure fluctuations of lubricating pipe network, which affects the stable operation of the sulfur dioxide blower. After troubleshooting, the problem is found and the normal operation of the sulfur dioxide fan is restored.