Classifying – separating – and assorting solids – Magnetic – Paramagnetic
Patent
1978-02-27
1980-07-22
Halper, Robert
Classifying, separating, and assorting solids
Magnetic
Paramagnetic
209217, 209232, B03C 110
Patent
active
042138540
ABSTRACT:
Magnetic separating apparatus is disclosed which includes means for establishing a magnetic field in a predetermined zone, a separating chamber having an inlet and an outlet for fluid, fluid-permeable and magnetizable material disposed within the separating chamber, ferromagnetic shielding means for magnetically screening a zone remote from the predetermined zone; and means for moving the separating chamber between the predetermined zone and the remote zone. When within one of the remote zones, a separating chamber is screened from the magnetic field applied by the magnet within the predetermined zone, and thus the packing material within the separating chamber may be particularly efficiently regenerated within this zone. This regeneration may e.g. be carried out by passing clean water through the packing material, optionally after having demagnetized the packing material, in order to flush out magnetizable particles from collecting sites within the packing material.
REFERENCES:
patent: 2974981 (1961-03-01), Vervest
patent: 3437963 (1969-08-01), Gang
patent: 3721929 (1973-03-01), Gabriel
patent: 4054513 (1977-10-01), Windle
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