Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With classifying – separating or screening of pulp
Patent
1992-12-01
1994-03-29
Alvo, Steve
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With classifying, separating or screening of pulp
209672, 209673, 209678, D21D 502, D21D 520, D21D 522
Patent
active
052981193
ABSTRACT:
A flow management system and process for providing controlled separation and sizing of an incoming flow of wood chips. A flow management screen is provided in the form of a horizontal disk screen having a variable speed drive, with the drive controlled based upon the flow rate of wood chips to the screen. By controlling the rotational speed of the disks of the horizontal disk screen, the flow separation and sizing to subsequent screening stations can be predicted and controlled. As a result, more consistent output is provided, as well as improved system efficiency and ability to accommodate for varying operational conditions and wear.
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"A New Concept in Overthick Chip Screening" by Kendall Kraft and Shannon Javid of Acrowood Corporation, Everett, WA.
"An Albany Paper Mill case study-chip thickness screening, energy, and production" by Dan J. Parker, Jan. 1983.
"Pulping Yields Increases with Chip Thickness Screening" by John Clark, Rader Companies, Inc., Nov. 1983.
"Chip thickness screening, slicing system has three-month payback" by Brian Briscoe, Aug. 1985.
Pulp & Paper, Jun. 1980: "New Concept `V` screen improves chip quality at Fiskeby AB mill" by James L. Keating.
"Eurocan improves chip quality with new thickness screening system" by Juan Villa (Pulp & Paper, Jul. 1983).
"Chip thickness screening at Eurocan" by J. Villa (Pulp & Paper, Canada 1985).
"Chip thickness screening system improves medium output, quality" by James B. Porter, Pulp & Paper, Jun. 1981.
"Weyco Begins Construction on Mississippi Pulp Mill" article in American Papermaker/Jan. 1989.
"Chip Thickness Screening System is Key to Pulp Quality at Manville" by John Stimac and Darrell Lynn (P&P, Apr. 87).
"Case History: Chip Screening Systems remove overthick and fines ahead of digesters" by Crown Zellerbach, Camas, Washington.
"Proper Selection of Chip Screening Systems" by Robert A. Brown and Lindsay M. Lancaster-Abstract.
"Keep Those Good Vibrations Happening at Your Mill" by Jackie Cox-American Papermaker/Feb. 1989.
"Advancing the state-of-the-art in screening bark-free and non-bark-free chips" by Elmer Christensen (Tappi/May 1976, vol. 59, No. 5).
Alvo Steve
James River Corporation of Virginia
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