Method of making slag sand and slag wool

Details Method of making slag sand and slag wool Method of making slag sand and slag wool

1980-06-24

1982-10-05

Hall, James R.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

Utilizing centrifugal force or rotating forming zone

B01J 202

Patent

active

043527647

ABSTRACT:
Slag sand and slag wool are formed by a method wherein molten slag is poured at a temperature above 1300.degree. C. in a thin flowing stream onto a vaned drum rotating at a peripheral speed of at least 25 m/sec. This drum, which may have forwardly directed nozzles for mixing the falling slag stream with a cooling medium such as water, breaks the slag up into droplets and projects these droplets through the air so they cool and form filaments and granules. The granules are collected separately from the filaments so that the installation simultaneously produces slag sand and slag wool.

REFERENCES:
patent: 4115089 (1978-09-01), Metz et al.
patent: 4153655 (1979-05-01), Minnick et al.

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