Gasification furnace with a circulating fluidized bed with a riser upper sides structure

摘要

Gasification furnace with a circulating fluidized bed with a riser sides of the upper structure, comprisinga riser pipe (1) for heating a circulation medium (5) by combustion of the air supplied from below (12),a cyclone separator (2), to which by means of a top side of the standpipe through a lateral channel (15), removed from the combustion gas (4) is passed to the blended therein circulation medium (5) to capture,a fluidized bed - gasification furnace (7), to which the through the cyclone separator (2) trapped circulation medium (5) and raw material (8) as well as a gasification medium (9) in order to produce gasification gas (10), anda circulation by means of gear (11) for returning the circulation medium (5) and of unvergastem, unreacted low temperature coke in the fluidized bed - gasification furnace (7) to the riser pipe (1), wherein it is provided,that the lateral channel (15) at the connection with the riser pipe (1) a introduction section (16) which has a cross-sectional area equal to that of the standpipe (1), andthat the lateral channel (15) between the introduction portion (16) and the cyclone separator (2) a throttled section..