초록 ▼

Device for continuous manufacture of fined glass in which the flow of molten material is transferred from a melting compartment (1) to a fining compartment (2) by a submerged throat (8), the fining compartment (2) comprising a chute (14) carrying the material, in an overall ascending current, and de

Device for continuous manufacture of fined glass in which the flow of molten material is transferred from a melting compartment (1) to a fining compartment (2) by a submerged throat (8), the fining compartment (2) comprising a chute (14) carrying the material, in an overall ascending current, and delivering it to the conditioning station (3), in a surface current, heating means (16-19) distributed in the chute (14) bringing the material to the usual debubbling temperature. This device is advantageously combined with a cupola type electric melting furnace, particularly for producing glasses with very volatile ingredients.

대표청구항 ▼

A process for continuously producing fined glass, comprising the steps of: melting a vitrified charge in a melting chamber to form a molten mass; delivering said molten mass via a throat from a bottom of said melting chamber to a bottom of a fining chamber in the form of a vertically extending chute

A process for continuously producing fined glass, comprising the steps of: melting a vitrified charge in a melting chamber to form a molten mass; delivering said molten mass via a throat from a bottom of said melting chamber to a bottom of a fining chamber in the form of a vertically extending chute; flowing said molten mass upward in said fining chamber, due to hydrostatic pressure; and using heating means distributed throughout the length of said chute to homogeneously heat said upwardly flowing molten mass in said fining chamber by at least 100°C. to a fining temperature.