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US 4,204,855 AGranted
Apparatus for dewatering granulated-slag slurry
AssigneeSIDMAR Maritieme Staalnihverheid N.V. Siderurgie Maritime S.A.
InventorGuido Monteyne
Life of this patent
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Abstract
Molten slag is granulated with water to produce a granulated-slag/water sry that is fed into the bottom of a horizontally extending foraminous drum. This drum has radially inwardly extending vanes and is rotated to lift up the granulated slag and separate it from the water, discharging the slag onto a conveyor belt for storage or further use. The water running out of the slag slurry is recirculated for use in the initial granulation step for the molten slag stream.
Claims12
An apparatus for treating a granulated-slag/water slurry, said apparatus comprising:
- a hollow drum rotatable about an axis and having a foraminous wall and a plurality of vanes extending radially inwardly from said foraminous wall;
- feed means including a conduit for feeding a stream of said slurry into said drum and onto the inner surface of said wall thereof at a predetermined relatively low location;
- drive means for rotating said drum about said axis and thereby displacing said slurry upwardly from said low location to a relatively high location at such a rate that most of the water in said slurry runs off through said foraminous wall;
- and
- conveyor means having an upstream end below said high location for catching the granulated slag from which the water has run off and for conducting the granulated slag out of said drum.
2 more elements
Dependencies are inferred from the claim text.