Saint-gobain Glass France

Saint Gobain Isover

Biagio Palmieri

Remi Jacques

Pierre Jeanvoine

Frederic Lopepe

Laurent Joubaud

Stephane Maugendre

Laurent Pierrot

Stéphane Maugendre

Philippe Pedeboscq

Philippe Meunier

Melanie Rattier

Francois Szalata

Frédéric Lopepe

Rémi Jacques

A furnace for melting batch materials, including, upstream in the direction of flow of the molten materials, a zone for introducing solid batch materials, and including a submerged burner and an overhead surface burner providing a flame that touches the surface of the glass at the point where the bubble from the submerged burner emerges. This association of an overhead, especially roof-mounted, burner and a submerged burner reduces the quantity of batch stones that may be sent toward the downstream end of the furnace.

Furnace with immersed burner and overhead burner

The melting of glass batch materials by at least one submerged burner generating a flame within the molten batch materials. At least one gas inlet separate from the burner is close enough to the burner to interact with the flame. The separate influx interacts with the flame of the burner to regulate it, thereby reducing the risk of molten materials entering the burner.

Immersed burner with regulated flame

The invention relates to a furnace for the continuous melting of a composition comprising silica, the said furnace comprising at least two tanks in series, said tanks each comprising at least one burner submerged in the melt. The invention also relates to the process for manufacturing compositions comprising silica using the furnace, the silica and the fluxing agent for the silica being introduced into the first tank. The invention makes it possible to produce glass color frits, tile frits and enamel with a high productivity, low temperatures and short transition times.

Furnace with series-arranged baths for producing glass compounds having a low degree of unmelted material

The invention relates to a process for preparing a silicate of an element chosen from alkali metals, alkaline-earth metals or rare earths, comprising a reaction between silica and a sulfate of said element in a reactor equipped with at least one submerged burner within a molten mass, said submerged burner being fed with a gas containing oxygen, an excess of fuel/reducing agent being introduced into the reactor relative to the oxygen effectively consumed. The process allows the reaction to be carried out satisfactorily and at relatively low temperature.

Preparation of silicate or glass in a furnace with burners immersed in a reducing medium

The subject of the invention is a device for melting batch materials that combines at least two separate melting modules, including a module A() which is predominantly fitted with heating means in the form of crown burners and/or submerged electrodes, and a module B() which is predominantly fitted with heating means in the form of submerged burners.

Device and method for melting vitrifiable materials

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Compiegne, France

Biagio Palmieri