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High-speed refining cuts energy use, improves quality of mechanical pulps

Pulp & paper, 1993-06, Vol.67 (6), p.51

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Title:
High-speed refining cuts energy use, improves quality of mechanical pulps
Author: Cort, J.B. (Andritz Sprout-Bauer Inc., Muncy, PA)
Subjects: CALIDAD ; HIGH SPEED OPERATION ; Mechanical engineering ; MECHANICAL PULP ; Paper industry ; PASTA ; PASTA MECANICA ; PATE CELLULOSIQUE ; PATE MECANIQUE ; Pilot projects ; PROCESAMIENTO ; PROCESSING ; PULP ; QUALITE ; QUALITY ; Studies ; TRAITEMENT ; WOOD PULP
Is Part Of: Pulp & paper, 1993-06, Vol.67 (6), p.51
Description: Producers of pulp and paper products are continually searching for methods to improve their manufacturing processes and enhance their cost-competitiveness. It has been known for many years that increasing the disc rotational speed of a double-disc refiner will reduce the specific energy required to attain a certain freeness. Recent studies conducted with an 1,800-rpm primary refiner and a 1,200-rpm secondary refiner in the Andritz Sprout-Bauer pilot plant (Springfield, Ohio) have resulted in a 20% mainline energy savings. However, it has been discovered that when care is taken to control operating conditions of the high-speed primary refiner, the resulting pulp quality can be made equal to, or in some aspects even better than, the conventional 1,200-rpm operation. The results of the study are presented.
Publisher: San Francisco: RISI, Inc
Language: English
Identifier: ISSN: 0033-4081
CODEN: PUPAA8
Source: ProQuest Central

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