Method and apparatus for drying coal


Application Number: 00124159
Application Date: 2000.08.18
Publication Number: 1285388
Publication Date: 2001.02.28
Priority Information: 1999/8/18 JP 231045/1999
International: C10B57/10
Applicant(s) Name: Nippon Steel Corp.
Address:
Inventor(s) Name: Yokomizo Masahiko;Murasakibara Yasutaka;Fukunaga Masaoki
Patent Agency Code: 11038
Patent Agent: han deying
Abstract A method and apparatus for drying coal by fluidized bed dryer 7, using flue exhaust gas 31 of coke oven 1 as a portion or all of feed gas 34 to fluidized bed dryer 7, characterized in that exhaust gas 32 from fluidized bed dryer 7 is circulated through gas circulation pipe 21 and reused as feed gas 34 to fluidized bed dryer 7 when the supply of flue exhaust gas of coke oven 1 is interrupted or reduced. In the above method and apparatus, the amount of coal fed to fluidized bed 14 is reduced, and the exhaust gas from fluidized bed dryer 7 is circulated and reused as feed gas to the fluidized bed dryer when the supply of flue exhaust gas 31 from coke oven 1 is interrupted or reduced.