Separation of Flame and Nonflame-retardant Plastics Utilizing Magneto-Archimedes Method

29th International Symposium on Superconductivity

Misawa, Kohei^1 ; Kobayashi, Takayuki^1 ; Mori, Tatsuya^1 ; Mishima, Fumihito^2 ; Akiyama, Yoko^1 ; Nishijima, Shigehiro^1

Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka

565-0871, Japan^1

Department of Applied Nuclear Technology, Fukui University of Technology, 3-6-1 Gakuen, Fukui City, Fukui

910-8505, Japan^2

关键词: Archimedes methods;    Flowing fluid;    Gravity separation;    Plastic materials;    Recycled plastics;    Recycling process;    Separation systems;    Toner cartridge;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/871/1/012103/pdf
DOI  :  10.1088/1742-6596/871/1/012103

来源: IOP

【 摘 要 】

In physical recycling process, the quality of recycled plastics becomes usually poor in case various kinds of plastic materials are mixed. In order to solve the problem, we tried to separate flame and nonflame-retardant plastics used for toner cartridges as one example of mixed plastics by using magneto-Archimedes method. By using this method, we can control levitation and settlement of the particles in the medium by controlling the density and magnetic susceptibility of the medium and the magnetic field. In this study, we introduced the separation system of plastics by the combination of wet type specific gravity separation and magneto-Archimedes separation. In addition, we examined continuous and massive separation by introducing the system which can separate the plastics continuously in the flowing fluid.