Method of making granulated slag

Details Method of making granulated slag Method of making granulated slag

1978-04-18

1979-10-23

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Slag, utilization

65 20, 65141, C03D 1908

Patent

active

041719654

ABSTRACT:
Slag sand is produced by first mixing a stream of molten slag with a quantity of between 0.5 m.sup.3 and 0.7 m.sup.3 of water per ton of slag to chill the slag while leaving it above the pyroplasticity threshold. Thereafter water at a rate of between 0.3 m.sup.3 and 0.4 m.sup.3 is added to the slag to stiffen the stream and this stiffened stream is fed to a drum rotating at a rate between 600 rpm and 1000 rpm to break it up into fine granules which are collected on a foraminous belt.

REFERENCES:
patent: 2210999 (1940-08-01), Bartholomew
patent: 3104164 (1963-09-01), Osborne
patent: 3594142 (1971-07-01), Margesson et al.

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