公开(公告)号：EP0691939A4

公开(公告)日：1995-11-13

申请号：EP94912330

申请日：1994-03-29

申请人： PPG INDUSTRIES INC

发明人： DEGREVE STANLEY C ,  LOVELACE JOE B ,  WATKINS E CHARLES ,  MATHIS TIMOTHY G ,  MAKITKA HARRY ,  BOUR THOMAS C ,  COTTON JOHN W ,  HANVEY CURTIS L JR ,  POSTUPACK DENNIS S ,  SHIVERS JAMES V ,  SMITH TIMOTHY

IPC分类号： C03B5/16 ,  C03B3/00 ,  C03B5/00 ,  C03B5/04 ,  C03B5/235 ,  C03B37/022 ,  C03B37/08 ,  C03B37/10

CPC分类号： C03B37/08 ,  C03B3/00 ,  C03B5/005 ,  C03B5/04 ,  C03B5/235 ,  C03B37/10 ,  Y02P40/52

摘要： The process and apparatus of the present invention enable the production of glass fiber product from scrap glass fibers. The invention includes: feeding the scrap glass fibers (14) having an average length up to around 12 inches to a glass melting tank (40) having a pool (36) of molten glass, melting the scrap glass fibers (14) without the presence of non-vitrified glass forming materials in an oxidizing environment, conditioning the melt to a formable viscosity, and forming the glass fiber from the conditioned melt where for a given glass fiber product there is a near constant pull of the melted glass from the melter (40). The rate of feeding of the scrap glass to the melter is sufficient to maintain the pool of melted glass with a level within the range of + 0.35 inch (9 mm.) over a period of eight hours. The glass melter (40) has a high length to width ratio with a finite-sided melting containment area which holds a pool of molten glass (36) that receives the scrap glass.