Automatic sorting of lightweight metal scrap by sensing apparent density and three-dimensional shape

被引：36

作者：

Koyanaka, Shigeki ^{[1
]}

Kobayashi, Kenichiro ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Environm Management Technol, Tsukuba, Ibaraki 3058569, Japan

来源：

RESOURCES CONSERVATION AND RECYCLING | 2010年 / 54卷 / 09期

关键词：

Automatic sorting; Lightweight metal scrap; Apparent density; Three-dimensional shape; Multivariate analysis; End-of-life vehicle;

D O I：

10.1016/j.resconrec.2009.10.014

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A new method for the automatic sorting of lightweight metal scrap has been developed to aid the recycling of scrap metal. The sorting system enables separation of relatively large metal pieces according to the differences in their apparent density and three-dimensional (3D) shape. Shape parameters such as width, height, volume, and projected area of irregular-shaped metal pieces moving along a conveyer are measured by means of a 3D imaging camera system consisting of a linear laser and camera with associated optics. The measured values of the weight and shape parameters are transferred to our own data-processing software that uses multivariate analysis. Mixed fragments of cast aluminum, wrought aluminum, and magnesium from an end-of-life vehicles shredder facility were sorted based on the output of the data-processing software. The results show that the developed automatic sorting system is a highly viable method that could replace conventional dense medium separation and manual sorting. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：571 / 578

页数：8

共 11 条

[1] HOT-CRUSH TECHNIQUE FOR SEPARATION OF CAST-ALUMINUM AND WROUGHT-ALUMINUM ALLOY SCRAP [J].