FURNACE UNIT WITH AUGMENTED FLUIDIZED BED REACTOR Russian patent published in 2017 - IPC F23C10/18 F23G5/30 

FIELD: electricity-producing industry.

SUBSTANCE: furnace unit 9 comprises the transverse furnace chamber 1, at the bottom of which there is the augmented fluidized bed 9 reactor 8 with the cap air distribution grill 11, which is adjacent to the furnace chamber 1 from the bottom, the air duct 18, which is mated to the air distribution grill 11 from the bottom, with the tubes 19 for the air supply, the fluidized bed 9 firing device 20, the slag output device 21, which is connected to the fluidized bed 9 volume, whereupon the furnace chamber 1 walls 2 at its bottom are also the walls of the mentioned reactor 8 that protect the fluidized bed 9, and there are the cooling elements 3 against the walls 2 of the transverse furnace chamber1. The duo-pitch separator 4 is horizontally installed at the bottom of the furnace chamber 1 throughout its depth along the direct axis. Two side walls 5 of this separator are made vertical and parallel with each other, and the separator's two upper walls 6 are made inclined with an angle of 30-60° among them. The duo-pitch separator 4 divides the furnace chamber 1 into two semifurnaces 7. Upon that, the augmented fluidized bed reactors 8 are situated in every semifurnace 7 among the side vertical walls 5 of the duo-pitch separator and the neighboring side walls 2 of the furnace chamber 1. The cooling tubular elements 13 are situated on the walls 5 and 6 of the duo-pitch separator 4.

EFFECT: furnace unit heat reception is increased and boiler efficiency is improved, furnace unit and chamber operation at different loading modes is improved and NOx emissions are reduced.

4 cl, 4 dwg