METHOD FOR UNPLUGGING OR CLEANING A SCREEN IN A CONTINUOUS PROCESS KRAFT COOKING DIGESTER

The present invention is related to a method for unplugging or cleaning a screen in a continuous process kraft cooking digester process, wherein the continuous Kraft cooking digester comprises a plurality of screens, each screen having a digestion zone facing side and a digestor wall facing side, th...

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Bibliographische Detailangaben
Hauptverfasser:	LIMA, Lucas, DA SILVA, Jeferson, RIBEIRO, Thais, ALVES, Valdemir, SANTOS, Carlos, DE MOURA, Gláucio, BLONSKI, Maria, MOROMIZATO, Carlos, DE ARAÚJO, Jonatan, DE CASTRO, Paulo, SAVACINI, Ricardo
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR PAPER-MAKING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS SEPARATION TEXTILES TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention is related to a method for unplugging or cleaning a screen in a continuous process kraft cooking digester process, wherein the continuous Kraft cooking digester comprises a plurality of screens, each screen having a digestion zone facing side and a digestor wall facing side, the plurality of screens disposed in a screen ring, the screen ring having at least one screen flow outlet leaving the digestor and at least one screen flow inlet entering the screen ring; the at least one screen flow inlet entering the screen ring providing a washing liquor to the screen for: unplugging, alkalinization treatment or both, without stopping the system.