Forehearth tank assembly for a glass distribution channel
AssigneeSociete Europeenne des Produits Refractaires
InventorPatrice Fournier
Life of this patent
Estimating the term…
Abstract
Forehearth tank assembly for a glass distribution channel. The assembly includes a single liner, two plungers and more and a single flow washer that has first and second orifices. The plungers are arranged, at least in part, in the liner. More than three grooves are created on the inner surface of the liner. Each has, in an inner part of the liner that is intended to be in contact with molten glass, a lower portion extending over more than 10% of the length of the lower part and having a length, measured following the groove, of greater than 0.1 times the length of the lower part. The length of the lower part is measured along the axis of the liner.
Claims12
A forehearth tank assembly of a glass distribution channel, the assembly comprising a single liner having a length and extending along an axis, at least two plungers, and a single flow washer comprising first and second holes, the plungers being arranged at least partially in the liner, more than three grooves being provided in an inner surface of the liner and each comprising, in a lower part of the liner which is intended to be in contact with molten glass, a lower portion which extends over more than 10% of a length of the lower part and which has a length, measured along the groove, greater than 0.1 times the length of the lower part, the length of the lower part being measured along the axis of the liner,
- a minimum depth of each groove being greater than 2 mm and less than 10 mm, at least in the lower part of the liner,
- a maximum width of each groove being greater than 10 mm and less than 30 mm, at least in the lower part of the liner.
A method for maintaining a forehearth tank assembly of a glass distribution channel, the assembly comprising a single liner having a length and extending along an axis, at least two plungers, and a single flow washer comprising first and second holes, the plungers being arranged at least partially in the liner,
- said method comprising:
- after a period of use of said single liner, replacing said single liner by a grooved liner,
- more than three grooves being provided in an inner surface of the grooved liner and each comprising, in a lower part of the grooved liner which is intended to be in contact with molten glass, a lower portion which extends over more than 10% of a length of the lower part and which has a length, measured along the groove, greater than 0.1 times the length of the lower part, the length of the lower part being measured along the axis of the grooved liner,
- a minimum depth of each groove being greater than 2 mm and less than 10 mm, at least in the lower part of the grooved liner,
- a maximum width of each groove being greater than 10 mm and less than 30 mm, at least in the lower part of the grooved liner;
- using said grooved liner during a period of use greater than the period of time of said single liner.
A method for running a forehearth tank assembly of a glass distribution channel, said method comprising the following steps:
- providing the assembly with a single liner having a length and extending along an axis, at least two plungers, and a single flow washer comprising first and second holes, the plungers being arranged at least partially in the liner, more than three grooves being provided in an inner surface of the liner and each comprising, in a lower part of the liner which is intended to be in contact with molten glass, a lower portion which extends over more than 10% of a length of the lower part and which has a length, measured along the groove, greater than 0.1 times the length of the lower part, the length of the lower part being measured along the axis of the liner,
- a minimum depth of each groove being greater than 2 mm and less than 10 mm, at least in the lower part of the liner,
- a maximum width of each groove being greater than 10 mm and less than 30 mm, at least in the lower part of the liner;
- running said assembly so as to use
- said liner for a period of use greater than 7 months.
Dependencies are inferred from the claim text.