Abstract: A solid fuel boiler burner has a rotary combustion chamber mounted in casing. The casing is connected by hooks to a gearwheel. The gearwheel is mounted rotationally between a pair of cage bearings. The gearwheel and a compensating and pressure plate have openings for a inflow of air from a blower chamber through an adjustable screen. The adjustable screen controls a ratio of primary to secondary air. A worm feeder delivers fuel to the combustion chamber through an outlet thereof. The worm feeder has an axially placed aeration duct therein.

Abstract: Disclosed is a solid fuel boiler burner, used in central heating boilers for building structures and in other heat exchangers. The solid fuel boiler burner has a rotary combustion chamber mounted in the casing, which is equipped with aeration ducts and this unit is connected by hooks with a gear wheel which is mounted rotationally between two cage bearings. The gear wheel and the compensating and pressure plate have openings for the inflow of air from the blower chamber through an adjustable screen which controls the ratio of primary to secondary air injected into the ducts. Moreover, the worm fuel feeder has an axially placed aeration duct with outlet in the combustion chamber.