SICHTERVORRICHTUNG

The tubular screen element in a paper pulp screen (Fig. 1) has screen apertures 52 and recesses 42, spaced from the apertures on the upstream side, which improve the separation process. Fig. 4 shows part of a screen with axial grooves 42 between rows of apertures 52 in Figs. 6, 7 the recesses are fo...

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Bibliographic Details
Main Author L.G. YOUNG,DOUGLAS
Format Patent
LanguageGerman
Published 21.04.1988
Edition4
Subjects
PAPER-MAKING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PRODUCTION OF CELLULOSE
SEPARATION
TEXTILES
TRANSPORTING
TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKINGMACHINE
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Summary:The tubular screen element in a paper pulp screen (Fig. 1) has screen apertures 52 and recesses 42, spaced from the apertures on the upstream side, which improve the separation process. Fig. 4 shows part of a screen with axial grooves 42 between rows of apertures 52 in Figs. 6, 7 the recesses are formed as dimples. Fig. 8 illustrates a screen with circumferential corrugations, the apertures being formed as slits restricted to the peaks on one side.
Bibliography:Application Number: DE19873733928