School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China.
J Hazard Mater. 2011 Sep 15;192(3):1450-7. doi: 10.1016/j.jhazmat.2011.06.061. Epub 2011 Jun 29.
Crushing and separating technology is widely used in waste printed circuit boards (PCBs) recycling process. A set of automatic line without negative impact to environment for recycling waste PCBs was applied in industry scale. Crushed waste PCBs particles grinding and classification cyclic system is the most important part of the automatic production line, and it decides the efficiency of the whole production line. In this paper, a model for computing the process of the system was established, and matrix analysis method was adopted. The result showed that good agreement can be achieved between the simulation model and the actual production line, and the system is anti-jamming. This model possibly provides a basis for the automatic process control of waste PCBs production line. With this model, many engineering problems can be reduced, such as metals and nonmetals insufficient dissociation, particles over-pulverizing, incomplete comminuting, material plugging and equipment fever.
粉碎分离技术在废旧印刷电路板（PCB）回收过程中得到了广泛的应用。一套无环境负面影响的自动化生产线已在工业规模上得到应用。粉碎废旧 PCB 颗粒的研磨和分类循环系统是自动化生产线的最重要部分，它决定了整个生产线的效率。本文建立了一个用于计算该系统过程的模型，并采用了矩阵分析方法。结果表明，模拟模型与实际生产线之间能够达到良好的一致性，且系统具有抗干扰能力。该模型可能为废旧 PCB 生产线的自动过程控制提供了基础。通过该模型，可以减少许多工程问题，例如金属和非金属解离不充分、颗粒过度粉碎、粉碎不完全、物料堵塞和设备发热等问题。
