高压电脉冲破碎电路板的基础研究  

Fundamental study of fragmentation of waste printed circuit boards by a high voltage pulse

作　　者：刁智俊[1] 赵跃民[2] 段晨龙[2] 孙松[3] 许飞[3] 

机构地区：[1]中国矿业大学环境与测绘学院,江苏徐州221116 [2]中国矿业大学化工学院,江苏徐州221116 [3]中国矿业大学孙越崎学院,江苏徐州221116

出　　处：《中国矿业大学学报》2013年第5期817-823,共7页Journal of China University of Mining & Technology

基　　金：国家自然科学基金委员会创新研究群体科学基金项目(51221462);江苏省自然科学基金项目(BK2012136)

摘　　要：利用高压脉冲技术对电路板进行了破碎,分析了破碎产物的粒度分布及解离特性,将不同实验条件下的能耗与平均粒径对不同破碎能耗模型进行非线性拟合.实验结果表明,与机械破碎方法相比,高压电脉冲破碎能够减少＂过粉碎＂现象,破碎产物-1.5mm粒级的解离度为100%,1.5~2.0mm粒级的解离度大于71.91%.非线性拟合结果表明,当n=2.59时,实验结果与Walker方程有较好的关联性,而传统的机械破碎方程不适合用于描述高压电脉冲破碎产物粒度与能耗间的关系.The printed circuit boards （PCBs） were fragmented by a high voltage pulse （HVP）. The size distribution of and characteristic of liberation of crushed product were analyzed. The energy consumptions and average particle size of crushed product obtained under different ex- perimental conditions were fitted by non-linear equation according to various theories of frag- mentation. The results show that the HVP can avoid over-pulverization phenomenon which of- ten happens in mechanical crushing process. The degree of liberation of --1.5 mm and 1.5--2.0 mm size fractions products were 100% and beyond 71.91%, respectively. The results of non- linear fitting demonstrate that the Walker equation （n=2.59） fits the experimental data well rather than conventional Kick＇s equation, Rittinger＇s equation and Bond＇s equation.

关 键 词：高压电脉冲 电路板 破碎 解离度 

分 类 号：X70[环境科学与工程—环境工程]