CYCLONE-TYPE FURNACE EXTENSION Russian patent published in 2003 - IPC

FIELD: combustion of wood biomass recovery waste. SUBSTANCE: furnace extension has cyclone chamber, afterburner for large fractions of fuel, fire grate, tangential nozzles, and outlet branch pipe. Afterburner is mounted under cyclone chamber, both being separated by means of knuckle with shoulder; conical fire grate is mounted in afterburner and outlet branch pipe is disposed on side surface of the latter. Proposed furnace extension is distinguished by an extended range of effective combustion of wood waste whose moisture content is as high as 60-65%. EFFECT: enhanced completeness of fuel combustion, reduced emission of nitrogen oxides. 3 dwg