Goods & Services

Umbrellas and parasols; Luggage, bags, wallets and other carriers. Clothing; Footwear; Headgear; Parts of clothing, footwear and headgear.

Abstract

A burner for a glass kiln comprising a supply conduit (2) for a liquid or gaseous fuel which defines a slot (21) downstream whereof a flame is generated; said slot (21) extending over a first fictitious surface for a first length (23) following a preponderant line (22) of extension. The ratio between the first length (23) and a first width of said slot (21) is greater than 60, said first width being equal to the ratio between the area of said slot (21) measured on the basis of said first surface and the value of said first length (23).

IPC Classes  ?

• F23C 1/08 - Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in air liquid and gaseous fuel
• F23C 5/14 - Disposition of burners to obtain a single flame of concentrated or substantially planar form, e.g. pencil or sheet flame
• F23D 11/00 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
• F23D 11/14 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour characterised by the shape or arrangement of the outlets from the nozzle with a single outlet, e.g. slit
• F23D 14/58 - Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration

Abstract

A foreheartih (1) or working-end for glass furnace of the type including one or more modules or sections (2), each one having: - an understructure (3) in which a vat (4) is defined into which the molten glass flows; - a superstructure (5) including a cooling air duct (13) and a pair of lateral fume ducts (20), communicating with the vat area (4) into which the molten glass flows, characterised in that, next to an outlet opening (17) of the duct (13), a "Venturi block" (22) is provided, into which both the cooling air from the duct (13) and the fumes from the fume ducts (20) flow, shaped in such a way that the cooling exit air causes the fumes to be extracted from the fume ducts (20). The forehearth and the fume extraction procedure enable the thermal homogeneity of the glass to be improved while reducing the use of refractory material, the formation of cracks in the superstructure and costs.

IPC Classes  ?

• C03B 7/06 - Means for thermal conditioning or controlling the temperature of the glass