LOW-TEMPERATURE VORTEX SHIELDED FURNACE FOR COMBUSTION OF SOLID FUEL Russian patent published in 2005 - IPC

FIELD: heat power engineering.

SUBSTANCE: furnace comprises front, back , and side shields on the corresponding furnace walls. In its top part, the back shield forms a narrow section which divides the furnace into the bottom and top chambers. Within the bottom chamber, the front wall of the furnace is provided with a slopping fuel supplying device which points downward. The bottom chamber receives nozzles for air blowing. The bottom part of the back shield goes into a hearth shield which has an elevation from the front to the back shield. In the bottom section of the hearth shield between pipes there are interrupted clearances. The ash bin underlies the hearth shield in the zone of the clearances. The nozzles for air blowing are arranged in longitudinal rows in series between the pipes of the front hearth, and back shields and are directed along the hearth and back shields off the frontal shield toward the furnace exit. The nozzles of each longitudinal row are arranged in a single vertical plane. The sides of the furnace in the zone of the boundary between the bottom and top chambers are provided with additional blowing nozzles for the complete combustion.

EFFECT: enhanced efficiency.

3 cl, 6 dwg