Patent ID: 8726697
Filing Date: 2014-05-20
Classification: C03B

Abstract:
1. A convection heating furnace for a glass sheet, which glass sheet arrives and moves along on moving rolls in a glass moving direction in said furnace, said furnace comprising: air heating elements which heat air, which heated air is then blasted against, the moving glass sheet, a plurality of elongated channels disposed laterally adjacent one another and longitudinally in the glass moving direction, said elongated channels capable of blasting the heated air moving in the glass moving direction the moving glass sheet, and into which said elongated channels at least a part of said air heating elements are fitted, and a respective row of elongated casings for each respective said elongated channel of said plurality of elongated channels, and each said row being disposed longitudinally along the respective said elongated channel, each said row of elongated casings having said elongated casings of each row a) disposed laterally adjacent one another and b) disposed longitudinally perpendicular to the glass moving direction, and each said elongated casing a casing space provided between consecutive said casings of each row, which said casing spaces serve as a first return route for the heated air after said heated air is directed at the moving glass and a channel space provided between adjacent said channels for the return air to move from said casing spaces.