C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
49/77.5
C04B 5/02 (2006.01) C21B 3/06 (2006.01)
Patent
CA 1068907
ABSTRACT OF THE DISCLOSURE Molten slag from a furnace is broken into granules by mixing with large quantities of water outside the furnace, thereby producing a slurry containing granulated slag, which can be used for example as a cement or ballast material. The slurry is introduced into a quenching tank from which part of the water is caused to overflow so that a thickened granu- lated slag slurry can be pumped from a lower part of the tank, where the slag granules are precipitated and stirred by cold water injected into the tank, this also bringing the slurry to a comparatively low temperature. The thickened slurry is pumped to a sedimentation tank where the granulated slag is produced by removing water from the slurry, this water being combined with the water overflowing from the quenching tank and cooled before being returned to the region of the quenching tank to be mixed with the molten slag and in- jected into the quenching tank.
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