摘要
铝、铝合金和镁铝合金的合理回收可带来巨大的经济和环境效益。研究者使用一段破碎-一段筛分-脉动气流分选的方法实现了铝和镁铝合金的有效分离,并探究了该流程的最佳操作参数。并通过电感耦合等离子体质谱(ICP-MS)测试得知原料组成为纯铝、铝合金和镁铝合金。铝和铝合金的密度相近,铝和镁铝合金密度差异明显。通过观察各种物料的自然断面,发现铝为塑性断裂面,铝合金和镁铝合金为脆性断裂面,端面的不同标志着断裂方式的差异。对不同粒级物料的分选需要采用不同的风量,但是由于铝和铝合金的密度差异小,脉动气流分选方法难以获得较好的分离效果。
Proper recycling of Aluminum,Aluminum alloys,and Magnesium Aluminum alloys will bring huge economic and environmental benefits.A combination of crushing,sieving,and pulsating air separation method was used to achieve effective separation of Aluminum and Magnesium Aluminum alloys.In addition,the optimal operating parameters of the process was explored.The Laser Ablation Inductively Coupled Plasma Mass Spectrometry(ICP-MS)test revealed that the raw material composition was pure Aluminum,Aluminum alloy,and Magnesium Aluminum alloy.The density of Aluminum and Aluminum alloy is similar,and the density of Aluminum and Magnesium Aluminum alloy is significantly different.By observing the natural sections of various materials,it is found that the section of Aluminum is a plastic fracture surface,the sections of Aluminum alloy and Magnesium Aluminum alloy are both brittle fracture surfaces,and the difference in the end faces indicates the difference in the fracture mode.The sorting of different granular materials requires different air volumes.However,due to the small difference in density,Aluminum and Aluminum alloys cannot be effectively separated using a pulsating air separation method.
作者
黄艰生
卢剑锋
谢卫宁
HUANG Jiansheng;LU Jianfeng;XIE Weining(Jiangsu Huahong Technology Stock Co.,LTD.,Jiangyin 214400,China)
出处
《再生资源与循环经济》
2019年第12期32-35,共4页
Recyclable Resources and Circular Economy
关键词
脉动气流
铝
钱铝合金
气流分选
pulsed air flow sorting
Aluminum
Magnesium Aluminum alloy
air flow sorting
