In China,the number of discarded household appliance is growing rapidly every year,but due to lack of advanced technology, a large portion of plastics used in these appliances are not recycled. This paper introduces some usual methods of identifying and sorting plastics,which are used both at home and abroad. The authors compare the advantages and disadvantages of each method, propose the solution of sorting plastics,which the near-infrared technology is used in and forecast the future of the technology advancement of plastic identifying and sorting. This paper gives an important reference to China's household appliance recycling industry.%针对我国废旧家电报废量与日俱增、先进的塑料识别分拣技术欠缺的现实,参考国内外技术资料,综述废旧家电塑料的识别和分拣技术特点及其优劣对比.介绍、分析并总结了国内外先进塑料分拣装置的原理和应用.提出在我国利用近红外技术实现家电塑料分拣的改进方案,展望了家电塑料识别分拣技术的发展方向,为我国废旧家电的塑料回收利用产业提供参考.
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