METHOD FOR FUEL COMBUSTION Russian patent published in 2010 - IPC F23C7/00 F23C10/12 

FIELD: power engineering.

SUBSTANCE: method for combustion of fuel in spouted bed is realised by means of fuel supply into spouted bed and circulation of fuel in suspended condition in process of combustion in bed under action of upper and lower blowing air flows. Flows of upper and lower blowing air is sent towards each other in vertical direction. Collided in zone of combustion. Level of collision is controlled along furnace height by air flow into upper and lower blowing air flows. At the same time spouted bed is swirled around direction of upper or lower blowing rotary flow supply or rotary flows of upper and lower blowing, which are twisted in one direction. Air of upper blowing is sent to zone of combustion by two coaxial flows, inner and outer ones, at the same time inner flow of upper blowing collides with flow of lower blowing, and outer flow of upper blowing is used to twist spouted bed around direction of air supply, besides 0-100% of upper blowing air is sent into inner flow.

EFFECT: improved efficiency of burning fuel that has not been prepared enough.

2 cl, 2 dwg