IT1150739B - Paper-making pulp prodn.
- Google Patents
Paper-making pulp prodn.
Info
Publication number
IT1150739B
IT1150739BIT20505/82AIT2050582AIT1150739BIT 1150739 BIT1150739 BIT 1150739BIT 20505/82 AIT20505/82 AIT 20505/82AIT 2050582 AIT2050582 AIT 2050582AIT 1150739 BIT1150739 BIT 1150739B
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunds DefibratorfiledCriticalSunds Defibrator
Priority to IT20505/82ApriorityCriticalpatent/IT1150739B/en
Publication of IT8220505A0publicationCriticalpatent/IT8220505A0/en
Application grantedgrantedCritical
Publication of IT1150739BpublicationCriticalpatent/IT1150739B/en
Lignocellulosic material such as wood chips is ground to form papermaking pulp by feeding a compressed mass of the chips non-rotationally into a grinding zone defined between converging walls, one of which is provided by a rotary grinder. Detached fibres are continuously removed from the grinding zone, and pref. the grinder operates at superatmos. pressure. Pref. treatment liqds. such as chemicals, alkali, are fed to the grinding zone during operation of the grinder. Pref. the compressed mass of chips is shaped to tubular form between a core rod and an outer casing.
WAY TO UTILIZE THE HEAT DEVELOPED IN THE DEFIBRATION ZONE TO MINIMIZE THE CONSUMPTION CONSUMPTION IN THE MANUFACTURE OF FIBER PULP FOR THE MANUFACTURE OF FIBER DISC