| 摘要 |
<p>The invention concerns a device for purging a high flow rate polymer extruder comprising a discharge valve (12) for evacuating the melted polymer outside the extruder. A cutting device (14) is arranged at said discharge valve (12) outlet for cutting up into blocks a continuous polymer flow at the discharge valve (12) outlet. A conveying device, preferably hydraulic (40, 42) is provided at the cutting device (14) output so as to drive the blocks (16') in a liquid current and transport them outside the discharge valve (12) discharge zone. The hydraulic conveying device preferably comprises a discharge tube (40) provided with a liquid injecting device, and a drain (42), provided with a device (60) for generating a vigorous liquid current in the drain (42).</p> |
