METHOD TO MECHANICALLY ACTIVATE MICROGROUND COAL PRIOR TO BURNING Russian patent published in 2011 - IPC F23K1/00 F23C13/08 B02C13/00 

FIELD: power engineering.

SUBSTANCE: method to mechanically activate microground coal prior to burning includes microgrinding, mechanical activation and burning, at microgrinding stage the mechanical activation is carried out simultaneously inside a disintegrator chamber, structural elements of which apply alloys with high chemical activity and lower erosion impact resistance, and produced solid coal solution with erosion wear particles is introduced into combustion chamber and exposed to a thermal shock. The solid coal solution with erosion wear particles is exposed to a thermal shock with the help of a high-enthalpy source, preferably a plasmatron or a gas burner. Structural elements of the disintegrator apply alloys including alkali-earth metals, preferably magnesium or calcium.

EFFECT: invention makes it possible to considerably reduce all types of costs, including operational ones, providing at the same time the high extent of coal afterburning and minimum emissions of hazardous gases (NO_x) to atmosphere.

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