In order to reduce the power consumption of coal pulverizing system

and to improve operation economy of the coal mill

the load of coal mill hydraulic characteristic test

air flow characteristic test and the maximum output test were carried out

and the detailed test data were obtained. According to the analysis of the data

the operation parameters of the coal mill curve were optimized. The power consumption of coal mill was reduced. The operation mode of the coal pulverizing system was finally optimized

and the purpose of saving energy and reducing consumption was achieved.