| 摘要 |
A dewatering concentrator comprises a strainer (2) including an elongate hollow screen (7) of circular cross-section which is rotatable about its axis and has a closed end and an open end, which constitutes an outlet (15). A hollow pipe (3), which is rotatable about its length at a speed different to that of the screen (7), extends axially within the screen (7) and has openings (11) adjacent the closed end for admitting stock into the interior of the screen (7). The hollow pipe (3) carries a plurality of paddles (12) whose free ends extend to close to the screen (7) and which are shaped to cause the stock to move within the screen towards the outlet (15). <IMAGE>
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