| 摘要 |
PCT No. PCT/SE84/00416 Sec. 371 Date Oct. 9, 1985 Sec. 102(e) Date Oct. 9, 1985 PCT Filed Dec. 5, 1984 PCT Pub. No. WO85/03730 PCT Pub. Date Aug. 29, 1985.Apparatus for thickening, or de-watering, and refining fibre-pulpsuspensions include a screw-press thickener (1) and a refiner (2). In order to prevent air from entering the pulp and to provide a simpler arrangement, the outfeed end of the screw-press thickener (1) is connected directly to the infeed end of the refiner (2), therewith also to serve as an infeed screw to the refiner (2). In this respect the thickener (1) has a screening jacket (5) which embraces the screw (6). The screening jacket has at least one section which converges in the pulp feed direction, to achieve in the screw-press (1) a press effect required for de-watering the pulp while at the same time achieving the requisite reduction in diameter of the screening jacket (5) for connection to the refiner (2).
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