Controlled process for making a chemically homogeneous melt for

Details Controlled process for making a chemically homogeneous melt for Controlled process for making a chemically homogeneous melt for

1986-10-20

1988-01-19

Lindsay, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 19, 65 27, 65134, 501 27, 501 28, 501 29, 501 36, 501 73, 501155, C03B 516, C03C 1306

Patent

active

047202955

ABSTRACT:
A process for making a homogeneous melt for producing mineral wool insulation. This insulating material is made from waste products namely, bottom ash, cement kiln dust, slag, and waste from mineral wool production. These materials, along with a binder, are homogenized into a mixture. Thereafter, the process includes briquetting the mixture into agglomerated pieces. The agglomerates are then melted in a cupola furnace and the molten agglomerate is discharged into a receiver. Hot combustion gases are then passed into the melt or molten agglomerate to chemically homogenize the melt and heat the melt to preselected temperature. Thereafter, the melt is converted into fibers using conventional practices.

REFERENCES:
patent: 2976162 (1961-03-01), Ekdahl
patent: 3150991 (1964-09-01), Monks
patent: 3215542 (1965-11-01), Tinker
patent: 4236929 (1980-12-01), Byers et al.
patent: 4617045 (1986-10-01), Bronshtein

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