METHOD AND INSTALLATION FOR ACTIVATION OF PULVERISED COAL PARTICLES THAT ARE FRACTIONATED AS TO SIZE Russian patent published in 2013 - IPC F23C5/32 F23C6/00 C01B31/10 

FIELD: heating.

SUBSTANCE: invention refers to an activation method of pulverised coal particles fractionated as to size by their introduction as vertical slot flows mixed with combustion products and heating with cocurrent vertical slot gas flames in horizontal chamber-flame heaters, emission and combustion of light and heavy fractions of volatile matters at interaction with gaseous combustion products, air and steam in inverter reactors, air cooling in a fluidised bed with simultaneous removal of heat to a surface heat exchanger, which differs by the fact that flame heating is performed at oxygen deficit with release of moisture and light fractions of volatile matters, and incomplete combustion products and heated coal particles are introduced to vertical inverter annular reactors, in which at first, ignition and combustion of light fractions of volatile matters is arranged in annular down flows with air make-up of flames with radial jets from vertical paraxial sections; then, heavy fractions of volatile matters are removed and burnt in down flows with blowdown of flames with tangential steam jets at simultaneous removal of heat to built-in surface coolers. Besides, the invention refers to an installation for implementation of the above method.

EFFECT: lower gas consumption and losses of coal activation heat.

2 cl, 4 dwg