基于塑料制品回收的逆向物流网络优化模型

The optimal model for reverse logistics networks of recycling plastic products

随着塑料制品的日益增多,废旧塑料制品的回收成为一个重要问题.根据塑料制品回收的特点,构建了相应的逆向物流网络模型.该网络包括回收点、颗粒粉碎厂、再制造生产厂、最终处理点、产品分销中心和销售点.以运输成本最小为目标,对网络点进行选址优化.运用遗传算法求解,通过一个实例验证了模型的有效性.

With the increasing of plastic products,the recycling of waste plastic products becomes an important issue.According to the peculiarity of recycling plastic products,a corresponding network model is built for reverse logistics.The network includes the recovery points,the particle grinding plants,the reproduction plants,the final disposal sites,the products distribution centers and sales points.With the objective of minimizing transportation costs,the operating point site-selection on the network are optimized.Applying genetic algorithm to find solution.An example is to verify the validity of the model.