| 摘要 |
PURPOSE:To effectively recover heat energy of blast furnace gas by compressing the blast furnace gas, by means of a compressor, burning it together with compressed air and then supplying them to a gas turbine. CONSTITUTION:Blast furnace gas which is fed out of a blast furnace 3 is cleared of dust and mist by the primary dust arrester 6 and a dry dust collector 5 and a part of the gas is flown to the second gas line 7 and the other part thereof is flown to the third gas line 14. The blast furnace gas which is flown to the second gas line 7 is compressed by a compressor 9, fed into a combustor 10, and burnt together with compressed air which is sent from a compressed air line 12. The resultant burnt gas with high temperature and high pressure is supplied into a gas turbine 8 to revolve a generator 13. Meanwhile, the other part of the blast furnace gas which is flown to the second gas line 7 turns a dry type blast furnace top pressurizing gas turbine 15 and is thereafter stored in a gas holder. The blast furnace gas which is fed out of the gas turbine 8 is furthermore sent to a hot air furnace 2 for heat recovery therein. |
