Patent ID: 8099981

Claim:
An apparatus for preheating a batch ( 12 ) of glass cullet which is preferably enriched with raw materials for glass production, comprising: a bunker ( 14 ) having flow ducts for the passage of warm offgas through the bunker ( 14 ), a base pan ( 14 b ) having a bottom, a base wall ( 22 ) which forms the bottom of the base pan ( 14 b ), and at least one outflow opening ( 28 ) located in the base wall ( 22 ); a plurality of discharge worms ( 26 ) arranged above the base wall ( 22 ); and at least one conveyor worm ( 30 a , 30 b ) arranged underneath the at least one outflow opening ( 28 ), wherein: the plurality of discharge worms ( 26 ) discharge the preheated batch of glass cullet from the bunker ( 14 ), by conveying the batch of glass cullet to the at least one outflow opening ( 28 ), and the at least one conveyor worm ( 30 a , 30 b ) acts at a perpendicular angle to the plurality of discharge worms ( 26 ).