NOZZLE FOR BLASTING GASIFYING AGENT INTO FLUIDIZED BED GASIFICATION FURNACE FOR COALS

摘要

PURPOSE:To provide the subject nozzle for the fluidization of coals, free from the trouble of clogging with deposited molten coal, positioned at the lower stage part of a fluidized bed-forming zone of a fluidized bed gasification furnace for coals, horizontally protruded through the furnace wall toward the center line and having a tip opening directing slantly upward. CONSTITUTION:A nozzle 21 for blowing a gasification agent into a lower stage of a furnace is horizontally extended through a furnace wall 23 at the lower stage of a fluidized bed-forming zone A of a fluidized bed gasification furnace for coals and protruded toward the center line X of the zone A. The opening 2 at the tip end 1 of the nozzle 21 is opened toward the center line X of the zone A directing slantly upward. Coal is supplied into the gasification furnace through a coal-feeding nozzle 22 slantly extended through the furnace wall 23 and directing toward the center line X. The coal is fluidized with the gasification agent blown through the lower-stage blowing nozzle 1 to form a fluidized bed. The formation of sintered part at the tip end of the nozzle can be prevented and the coal gasification can be smoothly performed by the use of the nozzle.