GAS SEALING VALVE FOR CHARGING APPARATUS OF BLAST FURNACE Russian patent published in 1997 - IPC

FIELD: gas sealing valves for charging apparatuses of blast furnaces. SUBSTANCE: gas sealing valve includes body, seat, cover of motion mechanism. Said cover has rotary bearing assembly mounted onto it. Said motion mechanism is provided with support unit and additional lever with mounting assembly to which funnel is secured. Motion mechanism includes gear wheel mounted inside body in bearings on shaft connected with lever of drive unit. Support unit includes two-arm lever with closing plate and platforms. Two-arm lever is mounted in sleeve. Motion mechanism has driven support unit to which two-arm lever with rollers is secured. EFFECT: improved design. 3 dwg