Treatment of abnormal thermal bending accident of rotary kiln in operation

TechnologyBy allen02/03/2021Leave a comment

Introduction Rotary kiln is the core thermal equipment of cement, metallurgy, building materials, chemical industry and so on. Its normal operation determines the quality, output and cost of products. Due to the high temperature of 1500℃ in the rotary kiln and the large temperature change gradient, there are high circumferential stress and thermal stress in…

Treatment summary of a bearing failure of high voltage motor

TechnologyBy allen02/03/2021Leave a comment

Introduction A company’s micro powder production line uses the main motor of 10kV and 4500kW vertical mill. After winter maintenance, it is found that the temperature of the bearing bush after the main motor increases significantly. When the ambient temperature is 8 ~ 10℃, the temperature of the bearing bush is measured to be 70℃…