FEEDING OF COAL AND CHAR TO OXYGEN BLOW COAL GASIFICATION FURNACE

摘要

PURPOSE:To efficiently feed coal and char to the titled furnace by using, as a conveying medium therefor, part of the product gas through said furnace. CONSTITUTION:Pulverized coal stored in coal bin 1 is pressurized with coal lock hopper 2 to feed to coal feeder 3 followed by conveying the coal into gasification furnace 4 with recycled gas from product gas compressor 9. The oxygen from oxygen production equipment 10 is pressurized with compressor 11 to feed to the furnace 4. Both the product gas and char formed in the furnace 4 are brought to cyclone 5, where most of the char is collected, being fed to char lock hopper 6. Part of the gas passed through gas refining equipment 8 is subjected to branching extraction followed by pressurization with the compressor 9 to be fed to said coal feeder 3 and char feeder 7, respectively, thus charging the furnace 4 with the coal and char.