| 摘要 |
<p>PT--78268 A Cut tobacco leaf is introduced into a U-shaped expansion tube connected by a tube to the distributor tube of a feed source, forming a complete tubular system hermetically isolated from the exterior. The expansion tube is maintained at a predetermined temp. and high-pressure gas is injected through a nozzle in the connecting tube section and passes through a venturi into the expansion tube, causing aspiration of the cut tobacco leaf so that it passes with the high pressure gas into the expansion tube, in which it undergoes expansion. GBAB- GB2155302 B A process for expanding cut tobacco stems comprising cutting the stems in a cutting machine, sucking the cut tobacco stems through a hermetically sealed connection tube system from the cutting machine into an expanding tube by means of suction power generated by passage of a jet of gas into the expanding tube through a venturi constriction, and causing the tobacco stems to expand in the expanding tube under a regulated, elevated temperature.</p> |
