초록 ▼

A method for manufacturing glass wherein raw material is fed as a batch to a continuous glass-melting tank furnace, melted in a melting tank and passed to a refining tank via a submerged throat. The melt is heated in the refining tank to de-gas it, and then molten refined glass is delivered to a con

A method for manufacturing glass wherein raw material is fed as a batch to a continuous glass-melting tank furnace, melted in a melting tank and passed to a refining tank via a submerged throat. The melt is heated in the refining tank to de-gas it, and then molten refined glass is delivered to a conditioning tank where it is brought to a desired working temperature. The refining tank is divided into upstream and downstream refining cells by a transverse sill. The melt in the upstream refining cell is heated to create a spring zone located towards the downstream end of that cell and a circulation of melt in that cell which feeds the spring zone.

대표청구항 ▼

A method of manufacturing glass wherein raw material is batch fed to a continuous glass-melting furnace which includes a melting tank connected by a submerged throat to a refining tank, the refining tank having an upstream refining cell and a downstream refining cell separated by a transverse sill,

A method of manufacturing glass wherein raw material is batch fed to a continuous glass-melting furnace which includes a melting tank connected by a submerged throat to a refining tank, the refining tank having an upstream refining cell and a downstream refining cell separated by a transverse sill, each of the upstream refining cell and the downstream refining cell having respective upstream ends downstream ends, and the downstream cell of the refining tank is connected to a conditioning tank, said method comprising the steps of: a. melting the batch material in the melting tank to provide a melt; b. passing the melt from the melting tank to the upstream refining cell of the refining tank via the submerged throat; c. heating the melt in the upstream refining cell to thereby degas the melt, to thereby produce within the upstream refining cell a spring zone, which spring zone is a localized area of rising melt located towards the downstream end of the upstream refining cell, and to thereby produce within the upstream refining cell a circulation of melt which feeds the spring zone; and d. delivering the melt of step c over the transverse sill into the downstream refining cell and subsequently into the conditioning tank.