Study on High Gradient Magnetic Separation for Selective Removal of Impurity From Highly Viscous Fluid

There is an issue of contamination by metallic wear debris in the industrial plants processing highly viscous fluid. It is necessary to remove the ferromagnetic impurities such as metallic wear debris. In the case several kinds of ferromagnetic particles exist in the highly viscous fluid, it is required to remove the object material selectively. In this study, the selective separation from several kinds of ferromagnetic particles was examined by the high gradient magnetic separation (HGMS) experiment by using superconducting magnet and the particle trajectory simulation. We succeeded in separating the object particle at the flow velocity around 100 mm/s by the magnetic separation experiment. The possibility of the selective magnetic separation from several kinds of ferromagnetic particles was also confirmed by particle trajectory simulation.