Process for spray control and flammable materials drying passing through a sprayer and flow of the control method of spraying the sprayer

The invention relates to a method for controlling the spraying and drying of a flammable material such as coal. The method comprises introducing the flammable material in a spray 1, to use a blower fan 9 for introducing dry gas 3 in the spray to dry tinder, use an exhaust fan 10 for discharging a mixture of the dry gas and the pulverized material in a separator, to adjust the suction pressure of the exhaust fan 10 to maintain the average pressure in the sprayer 1 at essentially atmospheric pressure, and maintain the temperature constant gas mixture leaving the sprayer. Application to thermal power plants. (CF DRAWING IN BOPI)