SWIRLING-TYPE FURNACE Russian patent published in 1999 - IPC

FIELD: burning solid fuels, mainly milled peat, wood and vegetable wastes; industrial boilers. SUBSTANCE: swirling-type furnace has vortex combustion chamber with gas exhaust port, tangential nozzles, additional grate or ash discharge hole. Vortex combustion chamber is mounted vertically; its bottom is inclined at angle of 10 to 50 deg relative to afterburner grate; at least one tangential port is located above afterburner grate in lower section of vortex combustion chamber. Additional gas exhaust port is formed by row of cooled tubes laid on upper end surface of vortex combustion chamber. Above raised side of bottom the knuckle of gas exhaust port is increased and/or baffling projections is provided under it. EFFECT: simplified construction; facilitated manufacture; enhanced operational reliability of furnace at reduced dimensions of vortex chamber by at least two times. 3 cl, 2 dwg