Fibrillation device for the manufacture of mineral wool
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United States of America Patent
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May 26, 1992
Grant Date -
N/A
app pub date -
Nov 28, 1989
filing date -
Apr 6, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a fibrillation device for the manufacture of mineral wool, the mineral wool melt runs down onto the peripehral surface of a spinning wheel from which it is thrown to further spinning wheels. The melt is thrown out as fibres which are subjected to a strong blast of air. The stream of air is conducted through an air gap having oblique guide vanes in order to impart to the stream of fibres an axial and a tangential velocity component. The air gap is formed to impart to the stream of fibres a radial velocity component directed outwards in addition to the tangential velocity component in the direction of rotation. Therefore, the air stream meets the peripheral surface of the spinning wheel at an oblique angle and forms a conically shaped curtain around the peripheral surface of each spinning wheel.
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