废旧太阳能电池板中Si与PET的静电分选优化研究

Optimization of electrostatic separation of Si and PET in waste solar panels

为了将废旧太阳能电池板进行资源化处理.以Si和PET混合颗粒为原料,在前期单因素实验基础上,通过正交实验设计研究不同电压(U)?转速(N)?极间距(S)和电晕电极角度(θ)对静电分选Si和PET混合颗粒效率的影响.结果表明,分选过程中Si颗粒的最优参数设置:U=25k V?N=80r/min?S=65mm和θ=50°,影响因素主次顺序为:S>N>θ>U;分选过程中中间产物的最优参数设置:U=25k V?N=80r/min?S=65mm和θ=50°,影响因素主次顺序为:S>N>θ>U;分选过程中PET颗粒的最优参数设置:U=27.5k V?N=80r/min?S=65mm和θ=40°,影响因素主次顺序为:U>θ>N>S.该研究对静电分选技术资源化处理废旧太阳能电池板具有一定的参考价值.

In order to effectively deal with waste solar panels,Si and PET mixed particles were used as raw materials,separation efficiency of Si and PET mixed particles were studied through orthogonal experiment with different voltage(U),speed(N),electrode spacing(S)and corona electrode angle(θ)conditions,on the basis of the preliminary optimization of single factor test.The results showed that the optimal parameter settings of Si particles in the sorting process were as follows:U=25kV,N=80r/min,S=65mm andθ=50°,and the influencing factors were ordered as followed:S>N>θ>U;the optimal parameter settings of middling in the sorting process were as follows:U=25kV,N=80r/min,S=65mm,andθ=50°,and the influencing factors were ordered as followed:S>N>θ>U;the optimal parameter settings of PET particles in the sorting process were as follows:U=27.5kV,N=80r/min,S=65mm andθ=40°,and the influencing factors were ordered as followed:U>θ>N>S.This study contributes to the efficient recycling of valuable resources from waste solar panels by the electrostatic separation.