Vented disc refiner

Details Vented disc refiner Vented disc refiner

D - Textiles, Paper

21

D

92/43

D21D 1/30 (2006.01) B02C 7/02 (2006.01) B02C 7/17 (2006.01) D21B 1/12 (2006.01)

Patent

CA 1045865

VENTED DISC REFINER ABSTRACT OF THE DISCLOSURE: A disc-type refiner wherein the means incorporating the refining surfaces are positioned in opposed, rel- atively adjacent, closely spaced relation and one thereof is formed to include at least one passageway through which steam created in the refining of material between the refining surfaces may be simply and quickly vented. A duct means is provided to receive and carry steam from the passageway to the exterior of the refiner housing, to facilitate use or disposal as and where desired. Means are included to control the amount of steam being vented and to maintain the venting arrange- ment on adjustment of the spacing between the refining surfaces. In the preferred embodiment illustrated, the invention features are incorporated in a double revolv- ing disc refiner which, by reason of the improvements of the invention, may be operated under either atmos- pheric or pressurized conditions. In either case con- siderable benefit is reflected in the refining pro- cedure and the quality of its end product. -1-

267587

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