| 湿法破碎在废弃线路板资源化中的应用 |
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| 引用本文： | 张洪建,赵跃民,王全强,段晨龙.湿法破碎在废弃线路板资源化中的应用[J].环境工程,2006,24(5):60-63. |
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| 作者姓名： | 张洪建 赵跃民 王全强 段晨龙 |
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| 作者单位： | 中国矿业大学,江苏,徐州,221008 |
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| 基金项目： | 国家自然科学基金
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高等学校博士学科点专项科研项目 |
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| 摘 要： | 根据废弃线路板非金属组成及破碎特性,通过热重-红外分析热解实验等手段证实和研究了干法破碎中存在的二次污染问题,提出了应用湿法破碎的解决方案。通过干、湿法破碎实验结果的对比得出:各粒级湿法破碎的产率有所变化,主要是(-5+2)mm粗粒级及0·045mm以下微细粒级物料的产率都有明显的增多,但整体上来看并没有改变物料的粒度分布特征。最后,就差异存在的原因作了分析。
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| 关 键 词： | 湿法破碎 废弃线路板 应用 资源化 二次污染 |
| 收稿时间： | 2006-04-12 |
| 修稿时间： | 2006-04-12 |
APPLICATION OF WET CRUSHING IN REUTILIZATION OF DISCARDED PRINTED CIRCUIT BOARDS |
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| Zhang Hongjian Zhao Yuemin Wang Quanqiang et al.APPLICATION OF WET CRUSHING IN REUTILIZATION OF DISCARDED PRINTED CIRCUIT BOARDS[J].Environmental Engineering,2006,24(5):60-63. |
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| Authors: | Zhang Hongjian Zhao Yuemin Wang Quanqiang |
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| Institution: | Zhang Hongjian Zhao Yuemin Wang Quanqiang et al |
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| Abstract: | Based on components and crushing characteristics of non-metal composition of the discarded printed circuit boards(PCBs),secondary pollution problem produced by dry crushing is validated and studied with thermogravimetry-infrared deterctor and wet crushing is provided to solve this problem.From the comparison between experimental results of dry crushing and wet crushing,it can be observed that cumulative yield of each particle size fraction of wet crushing has a change,but the distribution characteristics of particle is not changed,and the productivity of coarse particles with the size larger than (-5 2)mm and superfine materials with the size less than 0.045 mm are obviously increased.Finally,the reasons of the difference are analyzed. |
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| Keywords: | wet crushing discarded printed circuit boards application reuse of resources and secondary pollution |
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