废旧印刷电路板熔池熔炼技术节能降碳分析  

Analysis on Energy Conservation and Carbon Reduction of Bath Smelting Technology of Waste Printed Circuit Boards

作　　者：丁银贵 陈士朝 黄文 赵海 朱彩飞 邹结富 DING Yin-gui;CHEN Shi-chao;HUANG Wen;ZHAO Hai;ZHU Cai-fei;ZOU Jie-fu(CECEP Engineering Technology Research Institute Co.,Ltd.,Beijing 100082,China;CECEP(Shantou)Recycling Resources Technology Co.,Ltd.,Shantou 515157,Guangdong,China)

机构地区：[1]中节能工程技术研究院有限公司,北京100082 [2]中节能(汕头)再生资源技术有限公司,广东汕头515157

出　　处：《有色金属（冶炼部分）》2022年第9期77-82,共6页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点研发计划项目(2018YFC1903103)。

摘　　要：分析了废旧印刷电路板主要种类的理化特性,结合顶吹熔池熔炼技术的优势,在控制入炉料热值为8.5~9.5 MJ/kg时,通过增加富氧空气使炉料中的有机质充分燃烧,基本能够实现自热熔炼。经过计算,粗铜能耗为220 kgce/t,与矿铜相比可节约2520 kgce/t,减少CO_(2)排放6.60 t/t,与再生铜相比节约170 kgce/t,减少CO_(2)排放459 kg/t。废旧印刷电路板熔池熔炼技术示范工程实际生产过程中,维持进料时间在2.5~3.0 h时,除停炉放渣及停炉期间需补加燃料外,正常生产时,超过80%生产时间能够实现自热熔炼。The main physical and chemical characteristics of waste printed circuit boards were analyzed.Combined with the advantages of top blow bath smelting technology,when the calorific value of the charge is controlled to be 8.5-9.5 MJ/kg,the organic matter in the charge can be fully burned by adding oxygen-rich air,and basically self-heating smelting can be realized.After calculation,the energy consumption of producing 1 ton of crude copper is 220 kgce/t,which can save 2520 kgce/t and reduce CO_(2) emission by 6.60 t/t compared with ore copper,and save 170 kgce/t and reduce CO_(2)emission by 459 kg/t compared with recycled copper.In the actual production process of the demonstration project of waste printed circuit board melting technology,when the feed time is maintained at 2.5-3.0 h,the self-heating smelting can be realized over 80%of the production time in normal production,except for discharging slag and refueling during shutdown.

关 键 词：废旧印刷电路板 熔池熔炼 热值 节能降碳 

分 类 号：X76[环境科学与工程—环境工程]