Transformation of the Personnel Lifting Mode of the Main Shaft Hoister in Wanfu Coal Mine
The main and auxiliary shaft lifting systems of Wanfu Coal Mine are equipped with a hoister.When large scale maintenance projects or system failures occur in the auxiliary shaft,need to use the main shaft skip temporary or emergency lifting personnel.Under the original personnel lifting working condition,the hoister driver needs to manually control the acceleration and deceleration of the hoister throughout the entire process,which has problems such as long cycle time for one lifting,low safety level,the inability of the skip to park in place in a timely manner,etc.By methods of adding a control program for personnel lifting working conditions in the hoister control program,optimizing the lifting speed curve under personnel lifting working conditions of the hoister,increasing the position and over roll switch of the skip in the wellbore,optimizing the hoister protection function and so on,the independent personnel lifting mode control logic under personnel lifting working conditions is improved,and the transformation of the personnel lifting mode of the main shaft lifting system is completed.
lifting systempersonnel lifting modeprotection test
国家科技期刊平台
NSTL
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