Method and apparatus for making fibre pulp

Details Method and apparatus for making fibre pulp Method and apparatus for making fibre pulp

D - Textiles, Paper

21

D

92/41

D21D 1/00 (2006.01) D21D 1/30 (2006.01)

Patent

CA 1238220

ABSTRACT In a refiner with two opposed discs rotatable relative to one another, fibre pulp is manufactured from lignocellulose-containing material. The material is advanced in a channel comprising a plug pipe through which the material is fed in a compressed state, and a steam screen pipe for discharging steam. The steam screen pipe is located directly after the plug pipe and has a cross-sectional area which slightly exceeds that of the plug pipe in order to allow a limited expansion of the material plug. The steam is thereby allowed to flow through the material, at the same time as the material plug prevents clogging of the apertures of the steam screen pipe.

451694

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