有色设备

With the gradual improvement of the productivity of copper companies, the converting process in the refining plant, as an important procedure in the copper smelting operation, is highly critical of the primary and secondary air. Therefore, a large centrifugal blower with a stable air volume and a high air pressure is required as the air supply equipment in the converting process. There are three large blowers at the power center of Baiyin furnace, which are used as the air supply equipment for the new system. This converter blower is characterized by high rotating speed, large air output and high degree of automation, and thus the technical requirements and installation skills of the equipment are relatively high. However, in actual production, the front and rear bearings of the motor always suffer high-temperature heat and frequent oil leaks. This problem has been restricting and affecting the actual production of the converter. Unscheduled shutdowns often occur, or unnecessary shutdowns are caused by high temperature of the front and rear bearings, which directly affects the productivity of the converter. In more severe cases, this has caused severe shutdown accident where the front and rear bearings of the motor were burned out, restraining the normal operation of the converter. This article mainly introduces the comprehensive transformation of the converter motor lubrication system, including the transformation of the oil feed system, the transformation of the oil return system, the transformation of the bearing lubrication method, as well as the re-measurement of the bearing gap, scraping and press-fitting. Through a series of transformations, the temperature of the bearings during operation was reduced from the original 75℃ to 52℃ and the operation became stable.