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4,000원
원문정보
초록
영어
We have been developing a magnetic separation device that can be used in low magnetic fields for paramagnetic materials. Magnetic separation of paramagnetic particles with a small particle size is desired for volume reduction of contaminated soil in Fukushima or separation of iron scale from water supply system in power plants. However, the implementation of the system has been difficult due to the needed magnetic fields is high for paramagnetic materials. This is because there was a problem in installing such a magnet in the site. Therefore, we have developed a magnetic separation system that combines a selection tube and magnetic separation that can separate small sized paramagnetic particles in a low magnetic field. The selection tube is a technique for classifying the suspended particles by utilizing the phenomenon that the suspended particles come to rest when the gravity acting on the particles and the drag force are balanced when the suspension is flowed upward. In the balanced condition, they can be captured with even small magnetic forces. In this study, we calculated the particle size of paramagnetic particles trapped in a selection tube in a high gradient magnetic field. As a result, the combination of the selection tube and HGMS (High Gradient Magnetic Separation-system) can separate small sized paramagnetic particles under low magnetic field with high efficiency, and this paper shows its potential application.
목차
Abstract 1. INTRODUCTION 2. OPERATING PRINCIPLE AND PHYSICAL THEORY OF SELECTION TUBE 3. THEORY OF MAGNETIC SEPARATION 4. EXAMINATION OF MAGNETIC SEPARATION IN A SELECTION TUBE 4.1. Investigation of the distribution of particles suspended in the selection tube 4.2. Investigation of the distribution of particles suspended in a selection tube applied magnetic force 5. APPLIED TO SMALL DIAMETER PARAMAGNETIC PARTICLES 6. CONCLUSIONS REFERENCES
키워드
magnetic separationparamagnetic particleselection tubeHGMSlow magnetic field
저자
F. Mishima [ Department of Applied Nuclear Technology, Fukui University of Technology ]
N. Nomura [ Department of Applied Nuclear Technology, Fukui University of Technology ]
S. Nishijima [ Department of Applied Nuclear Technology, Fukui University of Technology ]
Corresponding Author