Studying the coal preparation equipments without considering the boiler and its auxiliary equipment cannot obtain the characteristics of the whole system completely and accurately.Thus

on the basis of research on the characteristics of the pulverizing system

boiler and the auxiliary equipments

the universal calculation software for pulverizing system was developed.Referring to the design model theory and method of process-formed mechanical part

the universal design calculation model was established

by abstracting the concept of "generalized process part" and "generalized material".Moreover

the coal mill was taken as the example to put forward the model definition and algorithm of process part

thus the object-oriented software model of the design calculation software for pulverizing system was established.The engineering applications show that the developed software system has excellent universality and accuracy.