Claims
- 1. A method of simultaneously making slag sand and slag wool from metallurgical slag, said method comprising the steps of:
- (a) slag shaping a slag stream at a temperature of at least 1300.degree. C. and above the temperature at which said slag crystallizes;
- (b) flowing said slag stream to a vaned drum before cooling of said slag stream to a temperature below that at which said slag crystallizes;
- (c) rotating said vaned drum at a peripheral speed of at least 25 m/sec;
- (d) impinging said slag stream prior to cooling thereof below said temperature at which said slag crystallizes onto the rotating drum and thereby breaking up said slag stream into droplets;
- (e) cooling said droplets below said temperature at which said slag crystallizes to form said droplets into granules and filaments;
- (f) projecting said granules and filaments by means of the rotating drum through the air to a collection location; and
- (g) separating and separately collecting said granules as slag sand and said filaments as slag wool at said location.
- 2. The method defined in claim 1, further comprising the step of adding particulate additives to said slag prior to shaping of same into said slag stream.
- 3. The method defined in claim 2 wherein said particulate additives include ground glass.
Priority Claims (1)
Number |
Date |
Country |
Kind |
78185 |
Sep 1977 |
LUX |
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Parent Case Info
This application is a continuation of Ser. No. 944,848, filed Sept. 22, 1978, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4115089 |
Metz et al. |
Sep 1978 |
|
4153655 |
Minnick et al. |
May 1979 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
944848 |
Sep 1978 |
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