FLUIDIZED BED DRYING APPARATUS AND INTEGRATED COAL GASIFICATION COMBINED CYCLE SYSTEM

摘要

This system is provided with: a fluidized bed drying device (102) in which fluidized gas (107) is fed to a drying chamber to thereby fluidize and dry low-grade coal fed to the drying chamber; a raw-coal fluidized bed bunker (50) for temporarily fluidizing and retaining low-grade raw coal (101), the raw-coal fluidized bed bunker being disposed on the upstream side of the fluidized bed drying device (102); a raw-coal particulates removal line L11 for removing raw-coal particulates (101A) from the upper side of the raw-coal fluidized bed bunker (50); a raw-coal coarse particles removal line L12 for removing raw-coal coarse particles (101B) from the lower side of the raw-coal fluidized bed bunker (50); a pulverizer (56) for pulverizing the raw-coal coarse particles (101B); and a pulverized coal fed line L1 for feeding pulverized coarse coal (101C) to the drying chamber.