FUEL GASIFYING SYSTEM Russian patent published in 2003 - IPC

FIELD: fuel gasifying furnaces working on coal and domestic wastes. SUBSTANCE: proposed fuel gasifying furnace includes gasifying chamber for fluidizing of high-temperature fluidizing medium for forming fluidized bed of gasifying chamber having interface and gasifying fuel in fluidized bed of gasifying chamber; system includes also chamber for burning semi-coke for fluidizing high- temperature fluidizing medium for forming fluidized bed of semi-coke burning chamber having interface, as well as burning of semi-coke obtained due to gasifying in gasifying chamber; proposed system includes first power regeneration unit for use of gases obtained in gasifying chamber; gasifying chamber and semi-coke burning chamber are separated by first separating wall to avoid passage of gases between them; this wall has first hole made in its lower portion which is used for communication of gasifying chamber and semi-coke burning chamber for motion of fluidizing medium heated in semi-coke burning chamber from semi-coke burning chamber to gasifying chamber. Proposed furnace does not require adjustment of balance of pressure between gasifying chamber and semi-coke burning chamber and mechanical equipment for mixing for mixing fluidizing medium. EFFECT: enhanced efficiency of power regeneration. 72 cl, 19 dwg