SEALING VALVE ARRANGEMENT FOR A SHAFT FURNACE CHARGING INSTALLATION

A sealing valve arrangement for a shaft furnace charging installation, said arrangement comprising: a shutter arranged for cooperating with a valve seat; an integrated dual-motion shutter-actuating device for moving said shutter between a sealed closed position in sealing contact with the valve seat and an open position remote from the valve seat, said integrated dual-motion shutter-actuating device comprising: - a primary motion assembly for moving said shutter from said sealed closed position to an undamped position wherein the shutter is released from the valve seat; - a secondary motion assembly for tilting said shutter from said undamped position to said open position remote from the valve seat, said secondary motion assembly comprising a tilting arm carrying said shutter and connected to a tilting shaft that defines an axis of rotation and a tilting shaft actuator configured to impart an angular rotation about said axis to said tilting arm; wherein said integrated dual-motion shutter-actuating device further comprises a stationary outer cylindrical sleeve, wherein said primary motion assembly comprises an inner eccentric sleeve shaft rotationally mounted within said outer cylindrical sleeve and a primary motion actuator configured to impart angular rotation to said inner eccentric sleeve shaft, the primary motion being a function of the eccentricity and angular rotation of the inner eccentric sleeve shaft; and wherein said tilting shaft of said secondary motion assembly is rotationally mounted within said inner eccentric sleeve shaft of said primary motion assembly, the secondary motion being a function of the angular rotation of the tilting shaft. La présente invention concerne un agencement de soupape d'étanchéité pour une installation de chargement de four à cuve, ledit agencement comprenant : un obturateur agencé pour coopérer avec un siège de soupape ; un dispositif d'actionnement d'obturateur à mouvement double intégré pour déplacer ledit obturateur entre une position fermée et étanche en contact d'étanchéité avec le siège de soupape et une position ouverte éloignée du siège de soupape, ledit dispositif d'actionnement d'obturateur à mouvement double intégré comprenant : un ensemble de mouvement primaire pour déplacer ledit obturateur de ladite position fermée et étanche vers une position desserrée dans laquelle l'obturateur est désolidarisé du siège de soupape ; un ensemble de mouvement secondaire pour incliner ledit obturateur de ladite positi