The Problems and Rectification Measures of the ZGM95-3 Medium Speed Roller Coal Mill Oil Station Control System
In response to the problem that the control system fuse of the coal mill oil station of the 2 × 350 MW unit of Jiantou Xingtai Thermal Power Co.,Ltd.cannot meet the requirements in terms of operational reliability,there is a hidden danger of affecting the unit load.It is judged that the main reason for the short circuit of fuse 1 is the excessive current of the relay in the control circuit of the grinding roller and the relay in the control circuit of the hydraulic reversing valve after being energized.A renovation plan is proposed to install a single-stage switch in the control system of the coal mill oil station to ensure the safe,reliable and stable operation of the unit and improve the economic benefits of the unit.
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