The copper-aluminum mixture may be small independent pieces or may be riveted, welded or clad to each other. If it has been naturally separated, excessive crushing will increase the number of fine materials; if it is still tightly connected, it must be dissociated first to improve the sorting effect.
Material characteristics
- Light iron sheets, aluminum products, copper-aluminum mixtures and briquettes have obvious differences in strength, thickness, shape and packing density.
- Long bars, wires and strips can easily become tangled, and closed containers, wetted parts and superhardware can present safety or equipment risks.
- Volume reduction, furnace front material and sorting material have different requirements on the degree of dissociation, discharge size and proportion of fine materials.
Key processing challenges
- There are both independent parts and composite parts in the incoming materials, and the processing goals are inconsistent.
- The difference in shape between thin copper wires and thin aluminum sheets will affect transportation and sorting.
- Plastic, steel and dust impurities need to be removed in sections.
Equipment-selection criteria
- Check tools, axis systems, drives and permitted processing boundaries against maximum thickness, cross-section, piece weight and material grade.
- Determine whether to configure screening, magnetic separation, eddy current and manual quality inspection based on the volume reduction or sorting goals.
- Incorporate inspection of sealing parts, removal of super-hard foreign objects, fire protection and maintenance spaces into the entire line plan.
Typical process flow
First use the sample to determine the proportion that needs to be dissociated and set up pre-sorting. The composite parts are crushed, and the independent parts can be directly screened; then magnetic separation is performed to remove iron, and then enter eddy current, specific gravity or manual sorting according to particle size.
Information required before project evaluation
Complete information helps us define equipment limits, test plans and the full line accurately:
- Types and proportions of ferrous and non-ferrous metals
- Maximum dimensions, thickness, weight and bulk density
- Plastic, rubber, sediment and liquid impurities
- Sealed containers, steel wire and ultra-hardware situations
- Target discharge, sorting method and downstream use
- Throughput, loading, power and safety conditions