Scrap Sorting Metal Sensor Air Valve Powdery Object Removal
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Solution Overview
Problem
The increased processing of electronic and electrical device component scraps in copper smelting flash furnaces leads to over-reduction issues and contamination, reducing sorting efficiency and increasing losses of valuable metals due to smelting inhibitors and powdery object interference.
Innovation Solution
A method involving a metal sorter equipped with a metal sensor, color camera, air valve, and conveyor to separate non-metal and metal objects, with a pre-processing step to remove powdery objects, optimizing the sorting efficiency and reducing smelting inhibitor content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the amount of electronic and electrical device component scrap processed in copper smelting flash furnace is increased, then the recovery efficiency of valuable metals is improved, but the carbon component from organic substances increases causing over-reduction troubles
Solution Approach 1:
The patent applies preliminary action by removing powdery objects before the main sorting process. The metal sorter is equipped with a powdery object remover that eliminates fine powdery particles from the scrap material before it enters the main sorting chamber. This preliminary removal prevents the powdery objects from interfering with subsequent sorting operations and smelting processes, allowing increased scrap processing without causing over-reduction troubles.
Solution Approach 2:
The patent extracts harmful powdery objects from the scrap material using a dedicated removal mechanism. The metal sorter includes a powdery object remover that separates and removes fine powdery particles from the mixed scrap stream. By extracting these problematic particles before main sorting, the system can process larger amounts of scrap without the carbon component from organic substances causing over-reduction issues in the smelting furnace.
2Productivity
If electronic and electrical device component scrap is crushed to reduce volume before processing, then the processing capacity is improved, but the carbon component from organic substances increases
Solution Approach 1:
The patent applies preliminary action by removing powdery objects before the main sorting process. The metal sorter is equipped with a powdery object remover that eliminates fine powdery particles from the scrap material before it enters the main sorting chamber. This preliminary removal prevents the powdery objects from interfering with subsequent sorting operations and smelting processes, allowing increased scrap processing without causing over-reduction troubles.
Solution Approach 2:
The patent extracts harmful powdery objects from the scrap material using a dedicated removal mechanism. The metal sorter includes a powdery object remover that separates and removes fine powdery particles from the mixed scrap stream. By extracting these problematic particles before main sorting, the system can process larger amounts of scrap without the carbon component from organic substances causing over-reduction issues in the smelting furnace.
3Productivity
If sorting is performed to remove smelting inhibitors, then the smelting efficiency is improved, but powdery objects interfere with the sorting capacity
Solution Approach 1:
The patent applies preliminary action by removing powdery objects before the main sorting process. The metal sorter is equipped with a powdery object remover that eliminates fine powdery particles from the scrap material before it enters the main sorting chamber. This preliminary removal prevents the powdery objects from interfering with subsequent sorting operations and smelting processes, allowing increased scrap processing without causing over-reduction troubles.
Solution Approach 2:
The patent segments the sorting process into two distinct stages: first removing powdery objects, then performing main sorting of metal and non-metal objects. The metal sorter is divided into a powdery object remover section and a main sorting chamber. This segmentation allows each stage to optimize for its specific function, preventing powdery objects from interfering with the sorting capacity while maintaining high smelting efficiency.
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
Improves the sorting efficiency of raw materials for smelting, reduces losses of valuable metals, and minimizes smelting inhibitor contamination by effectively separating metal and non-metal objects, enhancing the recovery efficiency of valuable metals.
Implementation Method 1
a metal sensor
Implementation Method 2
an air valve to blow air to shoot down non-metal objects from the conveyor
Data Source
AI summary
Provided is a method for processing electronic and electrical device component scrap, which can improve an efficiency of sorting of raw materials fed to the smelting step from electronic and electrical device component scrap, and reduce losses of valuable metals. A method for processing electronic and electrical device component scrap which includes removing powdery objects contained in electronic and electrical device component scrap prior to a step of separating non-metal objects or metal objects from the electronic and electrical device component scrap containing the metal objects and the non-metal objects, using a metal sorter including: a metal sensor, a color camera, an air valve, and a conveyor.