报废电冰箱的环保处理技术 |
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引用本文: | 胡彪,熊英汉,杨三变.报废电冰箱的环保处理技术[J].中国再生资源,2010(1). |
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作者姓名: | 胡彪 熊英汉 杨三变 |
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作者单位: | 天津理工大学循环经济研究院; |
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摘 要: | 介绍一种处理报废电冰箱的技术。首先对报废电冰箱进行分解,包括制冷剂回收、压缩机拆卸、散热系统和蒸发系统拆卸、箱体箱门钢板拆卸、箱体内胆拆卸、门衬拆卸和绝热泡沫剥离等。然后对于拆出的材料作进一步处理,钢板、管材经平整或矫直裁剪之后作为旧板材或旧管材;内胆和门衬破碎后作为注塑材料使用;压缩机组经专业检测、修复再利用或作为冶金炉料使用。聚氨酯泡沫需经分离回收R11处理,处理工艺路线包括泡沫粉碎、发泡剂蒸发、混合气收集、除尘、储气、压缩、冷凝、节流以及发泡剂与空气的分离;工艺参数涉及主要工艺环节的热力学计算,包括破碎后的泡沫中的R11发泡剂的蒸发吸热、混合气压缩功耗、冷凝过程的散热。同时还介绍了应用发泡胶接法的聚氨酯硬泡沫碎屑再成型技术。采用该工艺处理报废电冰箱,具有拆解物利用价值高、处理过程能耗低、便于分拣、设备造价低等优点,适合我国国情。
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关 键 词: | 报废电冰箱 废家电 资源化 聚氨酯硬泡沫废弃物 |
An environment friendly treating process on waste refrigerators |
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Authors: | HU Biao XIONG Yinghan YANG Sanbian |
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Institution: | HU Biao,XIONG Yinghan,YANG Sanbian(Institute of Circular Economy,Tianjin University of Technology,Tianjin 300191,China) |
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Abstract: | A treating process on waste refrigerators is introduced.Firstly,waste refrigerators are disassembled.This procedure includes refrigerants recycling;dismantling the compressor,radiator and evaporator;dismantling the steel shell,inner pot and bushing of the tank and door;peeling off the foam insulation.Then the disassembled materials are further treated:steel plates and tubes are recycled after being planished or slittered;bushing of the tank and door are crumbled and recycled as injection moulding material;c... |
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Keywords: | waste refrigerator waste home appliance recycling waste polyurethane rigid foam |
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