MOLTEN GLASS STIRRING DEVICE, PLATE GLASS MANUFACTURING APPARATUS, MOLTEN GLASS STIRRING METHOD AND PLATE GLASS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a molten glass stirring device capable of suppressing the pass-through of a molten glass in the vicinity of the wall surface of a molten glass conveying pipe and excellent in the effect of stirring the molten glass in the molten glass conveying pipe.SOLUTION: The molten glass stirring device for stirring molten glass in a molten glass conveying pipe having a branch pipe on the upstream side and the downstream side comprises a rotatable central shaft and a stirring part provided in the central shaft. The stirring part includes first and second stirring blades for generating the upward flow and downward flow of a molten glass flow, respectively, by a predetermined rotation, and a ring blade.SELECTED DRAWING: Figure 1