FURNACE FOR BURNING OF SMALL-GRAIN MATERIAL IN FLUIDISED BED Russian patent published in 2013 - IPC F27B15/02 

FIELD: metallurgy.

SUBSTANCE: furnace includes a heating chamber with a gas distributing grid, which is equipped with a feeder and connected to a sanitary cyclone, a burning chamber having fuel burners and an overflow device inside cylindrical cavity, from which a hot cyclone is installed, a guide partition wall separating the material feed zone from its unloading zone, and an annular gas distributing grid with thin shaped blades, a cooling chamber with a gas distributing grid, which is equipped with an air duct. Burners have tangential inlet at least of one of the fuel components and angles of atomisation flames at one part of burners, which are not equal to angles of atomisation flames of the other part of burners. Burners are installed with uniform alternation of burners with different angles of atomisation flames.

EFFECT: higher burning uniformity.

5 dwg