Method for automatic disassembly and recovery of waste printed circuit boards by using industrial waste heat

A printed circuit board and industrial waste heat technology, applied in the field of comprehensive utilization of electronic waste resources, can solve the problems of secondary pollution, uneven heating of waste printed circuit boards, low recovery rate of electronic components, etc., and achieve energy saving, emission reduction and environmental protection , Realize the effect of harmless automatic disassembly and separation, efficient separation and classification recycling
CN102284471AInactive Publication Date: 2011-12-21SOUTHWEAT UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SOUTHWEAT UNIV OF SCI & TECH
Publication Date
2011-12-21
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a method for automatically dismantling and recovering electronic components on waste printed circuit boards by using industrial waste heat. It uses industrial waste heat to prepare low-grade superheated steam through the waste heat boiler, and then uses the superheated steam as the heat source and power to realize the automatic disassembly of waste printed circuit board electronic components through high-temperature pulse injection of superheated steam; the superheated steam after work is condensed After the device is properly treated, it is returned to the waste heat boiler for recycling; the gas generated during operation is collected by a non-condensable gas collection device, and then directly discharged after proper treatment. The invention proposes to use the superheated steam prepared by industrial waste heat as the heat source and power to realize the automatic disassembly and recovery of waste printed circuit board electronic components, and at the same time realize the resource utilization of industrial waste heat and waste printed circuit boards, which conforms to the principle of green, low-carbon and environmental protection, and has the advantages of Significant socio-economic and environmental benefits.
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Description

technical field

[0001] The invention relates to a method for automatically disassembling and recycling electronic components on a waste printed circuit board, and belongs to the technical field of comprehensive utilization of electronic waste resources. Background technique

[0002] With the development of science and technology, especially the rapid development of high-tech, the speed of electronic product replacement is accelerating. As an indispensable part of electronic products, the amount of discarded circuit boards is increasing day by day. According to statistics, the world's electronic waste is growing at a rate of 18%, becoming the fastest growing waste. Data show that the current e-waste generated in Europe is 6-8 million tons, and the e-waste in the United States accounts for 2%-5% of the total waste in the United States. In my country, since 2004, at least 5 million computers, 5 million TV sets, 50 million mobile phones, 5 million washing machines, and 4 millio...

Claims

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