Air feeder and high temperature granule cooling device therewith

This invention is related to an air feeder and high temperature granule cooling device therewith, where such high temperature granules as sintered ore, granules, and high temperature sintered blocks can be cooled over a conveying body. In an air feeder with a fixed side annular air duct 31 which can be movably fitted to a movable side annular air duct through a water seal device 28, a pressure reducing part in which air of a conveying member leaks is provided in the prescribed position of a moving path. The water seal device 28 is provided with water seal plates 34A and 34B, whose lower ends are immersed in seal water in an inner peripheral annular water seal chamber and an outer peripheral annular water seal chamber formed in one of the movable side annular air duct, and the fixed side annular air duct 31 and the inner peripheral annular water seal chamber and the outer peripheral annular water seal chamber formed in the other of the movable side air duct and the fixed side annular air duct 31. In the pressure reducing part, auxiliary air blowing means 61A and 61B for blowing auxiliary air for lowering the air flowing speed due to pressure reduction are provided in the inner water seal chamber spaces 24i of the inner peripheral annular water seal chamber and the outer peripheral annular water seal chamber, so as to prevent the flapping phenomenon or scatter of sealing water, a trouble or the deterioration of a sealing property.