MECHANISED GRATE-FIRED FURNACE Russian patent published in 2015 - IPC F23C10/00 

FIELD: metallurgy.

SUBSTANCE: mechanised grate-fired furnace includes the expanding vortex combustion chamber with fuel spreader, tiers of tangential nozzles of secondary air blast, and gas exhaust window with nozzles for after-burning air-blast. The combustion chamber is located above the air distribution grid having rotating poking plank, and ash unloading assembly, they are cooled. The ash unloading assembly is connected to the ash silo via the aerodynamic particles classifier connected by the gas duct to the combustion chamber.

EFFECT: water cooling of the poking plank, air distribution grid, ash unloading assembly and remote heat-exchanger of the boiling bed ensure their protection against burning-out ion the furnace environment, and thus increasing their and entire furnace operation reliability under modes of fuel gasification or complete combustion in bed, in boiling bed or circulation bed with high efficiency.

5 cl, 1 dwg