LOWER SEALING VALVE UNIT FOR A BLAST FURNACE TOP CHARGING SYSTEM

摘要

blast furnace charging lower sealing valve unit for system entrance of a pair of 18 and having at least one opening 22 the housing 12; A valve seat coupled to the respective inlet (18, 28, 28 '); And each valve seat (28, 28 ') is coupled to, in the closed position, the inlet 18 of the valve to be to close the sealing sheet (28, 28') is sikineunde signed application the flaps (26, 26 ') including, each flap (26, 26 ') has a rotatable shaft (40, 40 for enabling a displacement between a closed position and an open position of the associated valve seat, and is supported by). General structure installed on one side of the housing 14, 38 comprises the rotatable shaft, a pair of drive mechanisms, each connected to one (50, 50 (40, 40) "), and to act independently , the shaft (40,40 ') is passed coaxially through the side of the while the housing is supported by the general structure (38). ;