GAS MIXTURE PREPARING UNIT Russian patent published in 2001 - IPC

FIELD: metallurgy, in particular, blast furnace equipment. SUBSTANCE: unit has blast furnace, scrubber, Venturi pipe, and injector with swirling, settling and heating chambers. Natural gas is supplied to injector, in particular, into swirling chamber where it is imparted swirling motion. Blast-furnace gas is directed via scrubber and Venturi pipe into zone adjacent to axis of body of swirling natural gas to be mixed with it. Solid and liquid water particles are settled in settling chamber and natural and blast-furnace gas mixture is discharged from injector and delivered to blast furnace tuyeres. EFFECT: increased efficiency and improved natural and blast-furnace gas mixing process. 7 cl, 2 dwg