The invention discloses a method for calculating the
grinding output of an MP-G type medium-speed
coal mill, which comprises the following steps: 1, providing basic
coal quality parameters for calculating a
coal sample: received basis total
moisture Mt, received basis ash content Aar and a Hardgrove grindability index HGI, and determining the
fineness R90 of pulverized coal to be ground at the same time; 2, calculating the
grinding output BM of the MP-G type medium-speed coal mill according to the power
industry standard, namely the
design specification DL / T 5145-2012 of a coal pulverizing
system of a thermal power
plant; 3, calculating the final
grinding output BMX of the MP-G type medium-speed coal mill. The method is suitable for medium-hard grinding (HGI) power coal, including
bituminous coal, meager coal and
anthracite, and can be used for coal mill
model selection of a newly-built power
plant and coal mill transformation of a built power
plant. By means of the calculation method,the on-
load capacity of the coal mill can be improved, the
fineness of pulverized coal has large adjustment allowance, and the problems of
hearth slagging,
pollutant NOx generation concentration reduction and the like can be solved through pulverized coal
fineness adjustment.