| 摘要 |
<p>Circulation tube in the fermentation tank is conical in part and has a stirrer arranged in the lower part of the tube. A gas entry pipe with holes is in the lower part of the tube, and this can be conical above and cylindrical in its bottom part, with the stirrer vanes so dimensioned as to scape close to the cylinder wall and thus produce a shearling effect which disperses the droplets and breaks up the gas bubbles arising.</p> |
