FORFARANDE FOR TVETTNING AV CELLULOSAMASSA

To provide a cleaner pulp and to obtain a higher chemical recovery during washing of chemically cooked and optionally defibrated cellulose pulp, the partially washed pulp is subjected to a mild mechanical treatment e.g. in a device (10) adapted for high-consistency treatment and provided with screws...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	J A I LINDAHL
Format:	Patent
Sprache:	swe
Schlagworte:	ACCESSORIES PECULIAR TO CYCLES AND NOT OTHERWISE PROVIDED FOR,e.g. ARTICLE CARRIERS, CYCLE PROTECTORS APPARATUS THEREFOR CYCLE SADDLES OR SEATS LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS PAPER-MAKING PERFORMING OPERATIONS PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS TEXTILES TRANSPORTING TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKINGMACHINE
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Beschreibung
Zusammenfassung:	To provide a cleaner pulp and to obtain a higher chemical recovery during washing of chemically cooked and optionally defibrated cellulose pulp, the partially washed pulp is subjected to a mild mechanical treatment e.g. in a device (10) adapted for high-consistency treatment and provided with screwsrotating relative to each other, said treatment taking place between at least one pair of conventional washing stages (4,14).