FURNACE WITH TILTING-PUSHING GRATE FOR BURNING PLYWOOD PRODUCTION WASTE AND GRANULAR AND BRIQUETTED FUELS Russian patent published in 2022 - IPC F23B10/00 

FIELD: plywood production waste burning.

SUBSTANCE: invention relates to devices for burning plywood production waste, as well as granulated or briquetted biofuel or peat, and can be used in thermal power engineering. The furnace contains a combustion chamber separated by an intermediate arch, equipped with devices for supplying fuel, zone input of primary air and recirculation gases under an inclined-pushing grate, secondary air and recirculation gases into the above-layer volume of the combustion chamber through nozzles located on the side walls, and an afterburning chamber connected with a combustion chamber and an exit window located at the front wall of the combustion chamber. The primary air supply is carried out under the second, third and fourth zones of the tilting-pushing grate, the recirculation gases are supplied under the first, second and third zones of the grate, and they are supplied to the above-layer volume of the combustion chamber through nozzles located on the side walls in one inclined planes above the second and third zones of the grate with a shift of half a step relative to the nozzles of the opposite wall, secondary air is supplied through nozzles located on the side walls with a shift of half a step relative to the nozzles of the opposite wall, while the lower row of nozzles is located above the first and second zones of the grate, and the upper row in the zone of the exit window, the inclined and vertical parts of the front wall of the combustion chamber and its ceiling part, as well as the inclined and vertical parts of the intermediate arch facing the combustion chamber and the afterburning chamber, are closed with gas-tight water-cooled screen panels.

EFFECT: creation of a highly efficient low-emission combustion device for burning plywood production waste, as well as granulated or briquetted biofuel or peat.

1 cl, 3 dwg