Wind Power Sorting for Copper Recovery from E-E Scraps
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Solution Overview
Problem
The recovery of substrate scraps containing copper foil or copper plating from electronic and electrical device component scraps is hindered by their mixing with iron and plastic during magnetic sorting, leading to the loss of valuable metals.
Innovation Solution
A method involving the selective separation and recovery of substrates with lead wires before magnetic sorting, utilizing wind power sorting to efficiently direct these substrates to the lightweight side, thereby preventing contamination with magnetic materials and enhancing copper recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If magnetic sorting is used to separate iron from electronic and electrical device component scraps, then iron recovery is improved, but substrate scraps containing copper are lost to the magnetic material side due to their iron content
Solution Approach 1:
The invention performs preliminary separation of substrate scraps from other electronic scraps before magnetic sorting. By using wind power sorting to separate lightweight substrate scraps (containing copper foil/plating) from heavier scraps containing iron, the substrate scraps are diverted to the non-magnetic stream before they can be contaminated by magnetic sorting. This preliminary action prevents the loss of copper-containing substrates to the magnetic material side.
2Loss of substance
If wind power sorting is performed before magnetic sorting to separate substrate scraps, then copper recovery is improved, but the overall sorting complexity increases
Solution Approach 1:
The invention segments the sorting process into two distinct stages: first wind power sorting to separate substrate scraps by weight, then magnetic sorting to separate iron from remaining materials. This segmentation allows each sorting method to optimize for its specific function - wind power sorting for lightweight substrate separation, and magnetic sorting for iron recovery - thereby improving copper recovery while maintaining manageable process complexity through functional division.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for the selective recovery of substrates with lead wires, significantly reducing contamination and increasing the recovery efficiency of valuable metals by ensuring they are processed as lightweight materials rather than being distributed to the magnetic material side.
Implementation Method 1
utilizing wind power sorting to efficiently direct these substrates to the lightweight side
Implementation Method 2
a method for performing physical sorting using magnetic sorting is effective as a method of separating and recovering the iron
Data Source
AI summary
Provided is a method for processing electronic and electrical device component scraps, which can selectively recover a substrate scrap including a substance intended to be recovered. A method for processing electronic and electrical device component scraps, including separating a substrate with lead wires contained in the electronic and electrical device component scraps before sorting the electronic and electrical device component scraps by magnetic sorting.