摘要
随着铜业公司生产力水平的逐步提高,精炼车间转炉吹炼过程作为铜冶炼生产的重要环节,对一次风、二次风的要求极高。因此吹炼过程中需要风量稳定、风压较高的大型离心式鼓风机作为供给设备,白银炉动力中心现有三台大型鼓风机作为新系统的风量供给设备。该转炉风机运行转速高,送风量大,自动化程度高,故对设备的技术要求及安装程度较高。但是在实际生产中,电机前后轴瓦一直存在高温发热且频繁漏油的情况,该问题一直制约并影响着转炉的实际生产,经常发生非正常停车,或者前后轴瓦温度较高造成的不必要停车,直接影响转炉的生产效率。严重时甚至造成了电机前后轴瓦烧毁的严重停车事故,制约着转炉的正常生产。本文主要介绍了针对转炉风机润滑系统的全面改造,包括供油系统的改造、回油系统的改造、轴瓦润滑方式的改造,以及轴瓦间隙的重新测量刮研并压装。通过一系列的改造,使运行时轴瓦温度由原来的75℃下降至52℃并稳定运行。
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.
作者
魏亮
刘雪萍
王桂
WEI Liang;LIU Xue-ping;WANG Gui
出处
《有色设备》
2021年第5期74-77,共4页
Nonferrous Metallurgical Equipment
关键词
转炉风机
润滑系统
改造
轴瓦
Converter blower
lubrication system
transformation
bearing
