FREMGANGSMADE OG ANLEG TIL FREMSTILLING AF EN FIBERBANE ELLERMATTE AF TERMOPLASTISK MATERIALE

1525652 Glass fibre manufacture SAINT-GOBAIN INDUSTRIES 3 Feb 1976 [10 Feb 1975] 04197/76 Heading C1M In a process for making glass fibres, in which main gaseous blasts (154, 156, 158) and secondary gas jets (148, 150, 152) are disposed at an angle to produce interaction zones, molten glass being introduced into the zones (from crucibles 142, 144, 146) for attenuation into fibres, the fibres are carried in a current of gas 12 to a perforated collection surface (e.g. conveyor 180), and at least part of the gas which flows through the surface is recycled (29) to the interaction zone. The gascarried fibres, after emerging from ducts 168, 170, 172, may be cooled by water sprayers 50 and may be sized by sprayers 13. Gas passing through the conveyor 180 may be scrubbed (45) to remove excess size or fibre scraps, before being drawn by fans 19 through cyclones 25, and returned to the chamber 100 via pipe 34 (which may be partitioned-132). The separated water may be recycled via reservoir 52.