Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With classifying – separating or screening of pulp
Patent
1991-02-19
1993-04-20
Silverman, Stanley S.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With classifying, separating or screening of pulp
162 71, 162142, 162150, 209 2, 209 10, 209381, 209382, 209315, D21H 1100, D21H 1500, B07B 150, B07B 154
Patent
active
052039650
ABSTRACT:
A screening system incorporated into the system of sawdust collection for paper producing pulp. An upper and lower range of the sawdust particles is designated as between smaller, strength-inhibiting size particles and larger strength-enhancing size particles. A screen is provided to screen out the smaller size particles. The screen is made out of stainless steel to avoid rusting and corroding and also to more readily pass the moistened smaller size particles. The screen is sloped and agitated to induce shuffling of the sawdust mixture, the process of which results in a separation of about 50% of the particles as rejected smaller size particles and 50% as acceptable larger size particles desirable for paper producing pulp.
REFERENCES:
patent: 232840 (1880-10-01), Newell
patent: 1162488 (1915-11-01), Johnson
patent: 1628549 (1927-05-01), Magondeaux
patent: 2065395 (1936-12-01), Richter
patent: 2114406 (1938-04-01), Simpson
patent: 2231953 (1941-02-01), Ruzicka
patent: 2269289 (1942-01-01), Schifflin
patent: 2497902 (1950-02-01), Moyer
patent: 2858023 (1958-10-01), Holland
patent: 3565251 (1971-02-01), Pennington
patent: 4116758 (1978-09-01), Ford
patent: 4122006 (1978-10-01), Christensen
patent: 4259148 (1981-03-01), Beath
patent: 4288320 (1981-09-01), Wilson
patent: 4496718 (1985-01-01), Rudy
patent: 4498981 (1985-02-01), Frevert
patent: 4526682 (1985-07-01), Wallace
patent: 4562969 (1986-01-01), Lindahl
Sawdust Pulping at Longview Fibre-Pulp & Paper Oct. 26, 1964 vol. 38, #37, pp. 52-54.
Harrington Robert L.
Lithgow Thomas M.
Pope & Talbot, Inc.
Silverman Stanley S.
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