ABSTRACT
A mathematical model of the process of thermochemical preparation coal before combustion was presented; gas and particle velocities, temperature and gas composition as a result of the calculations were obtained; was founded that at invariable initial air mixture consumption increased diameter of the reactor leads to peak temperature zone shifting towards the initial section; the influence of the coal particle form coefficient and its diameter of the intensity of the air mixture burning in the reactor and the position of the ignition zone was analyzed.
