Importance

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Abstract

A glass-manufacturing furnace for feeding a float unit for floating glass on a bath of molten metal, the furnace including, from upstream to downstream: a hot-crown melting zone including burners to melt a glass batch to obtain a glass bath, the melting zone including a first convection current and delimited by a no-return separation device to prevent the molten glass from going back into the melting zone; a glass-refining zone including a first refining zone including a burner and electrodes and a second refining zone, the first refining zone being separated from the melting zone by the separation device and from the second refining zone by a wall, respectively, wherein the glass is recirculated in the first refining zone on a second convection current and in the second refining zone on a third convection current; and a glass-cooling zone including a conditioning tank through which the third convection current flows.

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First Claim