A magnetic separation device, with streamlined construction and heightened
rate of magnetic adhesion, has two rotating plates 7, 8 which are fixed to
a rotation axis and rotate while immersed in a liquid, and magnets 13
mounted on the rotating plates 7, 8. The magnetic separation device is
constructed such that magnetic material in the liquid magnetically adheres
to the rotating plates 7, 8 and is separated. Further, the magnetic
separation device includes a yoke 14, surrounding and accommodating
magnets, and having an aperture facing one of the magnetic poles; the yoke
14 has an aperture side face 14c which is in contact with the rotating
plates 7, 8; and the aforementioned magnetic pole is in contact with the
rotating plates 7, 8. Pairs of magnets 13 are arranged such that opposite
magnetic poles oppose each other across the two rotating plates 7, 8, and
a magnetic space is formed between the two magnetic plates 7, 8.
