Method for recycling scrap mineral fibers

Details Method for recycling scrap mineral fibers Method for recycling scrap mineral fibers

1991-03-07

1992-03-31

Lindsay, Robert L.

Glass manufacturing

Processes

Repairing or cleaning of apparatus; or batch dust prevention...

65134, 65178, 65335, C03B 5187

Patent

active

051004534

ABSTRACT:
A method and apparatus for recycling scrap mineral fibers (42) having an organic binder coating in a highly stirred glass melter (16) wherein the organic binder coating is decomposed by applying heat. Carbon from the organic binder coating is oxidized on the surface of the glass melt (17). After oxidizing the carbon, the glass fibers are dispersed into the melt. Residual carbon may be oxidized after inclusion in the melt. Purified glass suitable for forming glass fibers is further processed by conventional glass fiber forming equipment. The method may also include the step of pre-processing the glass fiber scrap by shredding or pulverizing to facilitate feeding the glass fiber scrap to the highly stirred glass melt. The apparatus according to the present invention is preferably a stirred melter (16) having electrical joule effect heating. An impeller (22) in the glass melt stirs the melt at a high rate of speed to provide a draw down effect pulling fibers into melt.

REFERENCES:
patent: 3819350 (1974-06-01), Pellett et al.
patent: 3951634 (1976-04-01), Rough
patent: 4145202 (1979-03-01), Grodin et al.
patent: 4309204 (1982-01-01), Brooks
patent: 4422862 (1983-12-01), Wardlow
patent: 4432780 (1984-02-01), Propster
patent: 4820328 (1989-04-01), Roberts et al.

Affiliated with

Also associated with

Rating

Method for recycling scrap mineral fibers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for recycling scrap mineral fibers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for recycling scrap mineral fibers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2256241