Method and facility for manufacturing cross-linked fiberglass material

A process for the manufacture of a glass fiber product in which molten glass is converted into a glass fiber product, comprising the steps of:

• spinning the molten glass into at least one stream;
• attenuating the at least one stream into one or more filaments;
• collecting the filament or filaments;
• application of adhesive to the filament or filaments before or after their collection;
• crosslinking the adhesive-treated collected filament or filaments;
• the molten glass is produced in a melting furnace heated by combustion of a fuel with a rich oxidizer having an oxygen content of 80 vol % to 100 vol %, with generation of heat and flue gases, said generated flue gases being discharged from the melting furnace at a temperature between 1000° C. and 1600° C.;
• air is heated by heat exchange with discharged flue gases in a primary heat exchanger with hot air being obtained;
• a reactant chosen from rich oxidizers and gaseous fuels is preheated by heat exchange with the hot air in a secondary heat exchanger with the production of preheated reactant and of moderated air at a temperature between 200° C. and 500° C.;
• the preheated reactant is used as combustion reactant in the melting furnace;
• and
• moderated air resulting from the secondary heat exchanger is used during the crosslinking of the adhesive-treated collected filament or filaments by bringing the collected adhesive-treated filament or filaments into contact with moderated air resulting from the secondary exchanger in order to promote the crosslinking.