| 摘要 |
A method for feeding a paper web from a forming wire and for dewatering the web including the steps of urging a pick-up felt against the web on the forming wire, adhering the web by suction to the surface of a pick-up felt, transferring the web onto a transfer felt which wraps a transfer roll, the latter being contiguous to the pick-up roll, passing the web on the transfer felt to a first dewatering press nip formed by an upper suction press roll and a cavernous surface lower press roll, the latter operating inside the transfer felt loop while the suction roll operates inside its own felt loop, pressing the web in the first press nip to dewater the web in two directions i.e. towards the suction roll and towards the cavernous surface roll, adhering the web to the suction roll felt surface, transferring the web to a second dewatering press nip formed by the suction roll and by a smooth surface press roll, pressing the web in the second nip to dewater the web only towards the suction roll, detaching the web from the suction roll felt and adhering the same to the surface of the smooth surface press roll and transferring the web to a following web treatment phase.
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