| 摘要 |
1,34,947. Separating solid particles from gas streams. FARBENFABRIKEN BAYER A.G. Oct. 6, 1964 [Oct. 11, 1963], No. 40727/64. Heading B1T. A dust-carrying gas stream is discharged from the beaded end of a tube 1 and a thin wall layer of the same gas is supplied through annular slot 15, this layer rotating about the tube axis just upstream of the end 3, whereby the main stream is deflected sharply round the beaded end 3 and the dust, being denser than the gas, carries straight on by its own inertia. Annular slot 15 opens into annular chamber 13, to which either gas is supplied tangentially (Fig. 1, not shown), or the supply connection is axial, as shown, and chamber 13 has vanes 18 to induce the rotation. A second chamber 12 with axial supply 16 and annular slot 14 may provide a non-rotating layer of the gas between the main stream and the rotating layer. In Fig. 3, (not shown), a jacket connected to a suction device surrounds and opens adjacent to the end of tube 1, to draw the deflected gas stream away, while the deflection is assisted by a small jet of gas directed towards the said end. The quantities of gas discharged from the slots and in the jet are 5-20% of the main stream, but their velocities are greater.
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