GAS MIXER Russian patent published in 1996 - IPC

FIELD: power engineering, particular, devices for ejection, mixing and supply of gaseous fuel to technological units; applicable in metallurgical industry for blowing in blast furnace hearth, for instance, of mixture of natural and coke gases with provision of its preset regulated ratio of gas mixture components and reduction of gas mixer loading. SUBSTANCE: gas mixer has pipeline supplying working gas with central nozzle, receiving chamber with periphery feed and mixing chamber installed coaxially with central nozzle. Nozzle outlet is made of, at least, three conical sectors installed for radial movement relative to nozzle axis and provided with drive for sectors separation. Conical sectors are interconnected between one another by means of flexible tie or cover plates. Sector gates are installed around the central nozzle and provided with drive for their displacement. Receiving chamber is connected with pipeline supplying working gas. EFFECT: higher efficiency. 5 cl, 2 dwg