| 摘要 |
<p>Prodn. of a mineral wool from slag esp. blast furnace slag consists of applying, at the exit from the blast furnace, a high speed rotating device which removes some molten particles from the surface of the slag flow, the fibres, filaments and beads obtd. being driven, and carried into a moulding chamber. The device is a lamellar rotor with a peripheral speed of 50 m/sec. The lamellar plunge into the slag to a depth of several mm. The rotor is installed at the level of the pouring lip, esp. on the level. A large supply of slag fibres, beads, etc. can be obtd. without prior art reheating costs.</p> |
