Classifying – separating – and assorting solids – Magnetic – Paramagnetic
Patent
1986-07-08
1989-07-18
Cherry, Johnny D.
Classifying, separating, and assorting solids
Magnetic
Paramagnetic
162 4, 162 55, 2105122, B04C 700
Patent
active
048490962
ABSTRACT:
The apparatus has a main line having stages of cleaning batteries (S1-S5). The respective battery of each individual stage consists of cleaners such as hydroclones which produce three fractions. The medium fraction is conveyed from stage to stage. The heavy fraction of the first stage is cleaned in a first secondary circuit (N1) and the light fraction of all main line stages S1 to S5 is cleaned further in a second secondary circuit N2. The heavy fraction of the main line stages (S2 to S5) following the first stage (S1) is conveyed as accept to a paper machine reservoir, as is the light fraction of the first secondary circuit (N1). The heavy fraction of the second secondary circuit (N2) is conveyed to the inlet of the main line first stage (S1), whereas the light fraction of this second secondary circuit (N2) is cleaned further. The hydroclones of the two secondary circuits may be of the type which is capable of preparing three fractions. The light fraction of these secondary circuit cleaners may be discared, if necessary, after brief screening. The cleaners which are capable of producing three fractions are preferably of the type in which the extraction of the fractions occurs at the lower outlet aperture of a thin conical portion.
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"Papers presented at an International Conference on Hydrocyclones", BHRA-pp. 178-187 (209-211).
Cherry Johnny D.
J.M. Voith & GmbH
Jeffers Albert L.
Robinson Richard L.
Wacyra Edward M.
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