HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >

Development of suitable product recovery systems of continuous hybrid jig for plastic-plastic separation

This item is licensed under:Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International

Files in This Item:
Revised manuscript.pdf705.17 kBPDFView/Open
Please use this identifier to cite or link to this item:

Title: Development of suitable product recovery systems of continuous hybrid jig for plastic-plastic separation
Authors: Ito, Mayumi Browse this author →KAKEN DB
Saito, Ayumu Browse this author
Murase, Nana Browse this author
Phengsaart, Theerayut Browse this author
Kimura, Shoko Browse this author
Tabelin, Carlito Baltazar Browse this author
Hiroyoshi, Naoki Browse this author →KAKEN DB
Keywords: Recycling
Hybrid jig
Continuous jig
Issue Date: Sep-2019
Publisher: Elsevier
Journal Title: Minerals engineering
Volume: 141
Start Page: 105839
Publisher DOI: 10.1016/j.mineng.2019.105839
Abstract: A modified jig called the hybrid jig was recently developed to separate mixed-plastics with similar specific gravities effectively using the concepts of bubble attachment, surface wettability and gravity separation. This method was effective in a batch-type jig setup, but when applied to a continuous-type jig setup, the efficiency of the process dramatically decreased. This drop in efficiency was attributed to the unintended negative effects of air bubbles on separation especially close to the screw-type extractor at the product end though this type of product recovery system was successfully applied to the RETAC and reverse jigs. To address this problem, a better product recovery system for continuous-type hybrid jig is proposed in this study, and the effects of air injection rate at different positions of the hybrid jig separation chamber were evaluated. The results showed that fluidization behavior of particles in the hybrid jig was influenced by not only water pulsation but also the rising motion of air bubbles. To improve the purity of heavy materials in the bottom layer products, two product recovery systems are proposed: (1) a screw-type extractor with one "separating" single-screen, and (2) a screw-type extractor with modified air injection and water pulsation (i.e., upward flow period was shortened).
Rights: © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 伊藤 真由美

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University