| 摘要 |
<p>The cylindrical housing contains an upright helically bladed mixer screw with its drive spindle passing through the top, and has a supply line at the bottom through which material is blown. The side outlet at the top, which communicates with a a duct around the top, has a spindle consists of a bellows sleeve pressing upwards against the top of the housing, and pressing downwards against a sealing-ring, a sealing disc and a flange on the spindle.</p> |
