From the mining axial flow ventilator operation status quo,the operation fault and operation parameters to carry out a comprehensive investigation,and pointed out that the causes of blade fracture mainly include materials and fan long-term operation in the edge of the stall in two categories;based on this,from the blade modification and to avoid the fan stall wheezing and so on to put forward the improvement strategy;after the implementation of the improvement measures,the threat to the mining axial flow ventilator blade fracture of the risk factors are basically eliminated,and after the implementation of the improvement measures,the risk factors threatening the breakage of the blades of the mine axial flow ventilator are basically eliminated,and the operation of the fan returns to normal.
NETL
NSTL
维普
万方数据
