anordning foer avlaegsnande av luft fraon i fiberbana och i filt eller filtar i that valsnip av i press.

摘要

The invention concerns an arrangement for the removal of air from a fibre web and felt or felts in a roll nip. The arrangement includes, at the front of the roll nip, equipment for removal of air, comprising a steam supply chamber 8a-8c and a suction box 9, also one or more steam- supply nozzles 10- 12 of the ejector type, fitted in the gap formed by the rolls 1, 2, which nozzles supply steam out from the gap so that the ejector effect of the out- flowing steam sucks with it any air that has accumulated in the gap or gap section Na - Nc. IMAGE