The aluminum can and aluminum profile shredding and baling solution is a very typical pre-processing procedure for recycled aluminum. Its core objective is to transform bulky, loose, low-density aluminum scrap into high-density, pure "furnace charge" through crushing, sorting, and baling, facilitating transportation and improving the efficiency of subsequent smelting and metal recovery.

Below is a systematic, professional, and operable solution covering the entire process from equipment selection to final baling.

Solution Core: Three-Step Pre-processing Method: Raw Material → Shredding and Crushing → Sorting and Impurity Removal → Hydraulic Baling → Clean Furnace Charge

I. Detailed Process Flow Analysis

1. Raw Material Preparation and Feeding

Aluminum Cans (UBC): Typically bundled waste beverage cans, with extremely low density, containing paint, internal coatings, and small amounts of plastic and iron rings.

Aluminum Profiles: From doors, windows, curtain walls, etc., with anodized film or spray coating on the surface, possibly containing steel (screws, angle brackets) and rubber strips.

Pre-processing: Manual rough sorting is recommended to remove large non-aluminum impurities (such as plastic parts and wood).

2. Core Shredding and Crushing Process

Equipment: Twin-shaft shear shredder.

Purpose: To reduce the volume and crush large, long aluminum profiles and bundled aluminum cans into irregular small pieces (20-80mm), creating conditions for subsequent efficient sorting.

Key Points:

Low speed, high torque: Suitable for metal shredding, stable operation, relatively low noise and dust.

Blade Material: Must use high-strength alloy tool steel with high wear resistance and toughness to handle small amounts of other metals (such as iron) that may be mixed in the aluminum.

Screen: Different mesh sizes can be changed according to the required output size to control the crushed particle size.

3. Sorting and Purification Process (Crucial to the final furnace charge quality)

The crushed material is a mixture of aluminum and iron, and must be sorted.

Magnetic Separation (Essential):

Equipment: Suspended self-unloading iron remover or magnetic drum;

Function: Removes most ferromagnetic impurities (such as steel residue in profiles and iron can residue), this is the most basic and cost-effective sorting step.

4. Final Packaging and Forming Process

Equipment: Metal hydraulic baler (usually horizontal).

Purpose: To compress the sorted clean aluminum fragments into high-density cuboid bales.

Advantages: Significantly increased density: Packing loose aluminum scraps (bulk density approximately 0.3-0.8 tons/cubic meter) into dense bales (density can reach 1-1.2 tons/cubic meter or higher), reducing transportation space and costs.

Easy storage and feeding: Regular bales are easy to stack and manage in storage, and can be directly fed into the smelting furnace, reducing burn-off and oxidation during the smelting process.

Reduce safety hazards: Prevents loose fragments from flying or spontaneously combusting during transportation and storage.

II. Summary of Solution Advantages

1. High volume reduction rate: Shredding and packaging reduce the total volume to 1/3 to 1/5 of the original, significantly reducing logistics costs.

2. High-purity product: Magnetic separation effectively separates iron and aluminum, yielding high-value furnace feed.

3. Improved Smelting Efficiency: Clean, dense bales result in higher metal recovery rates (less burn-off), lower energy consumption (more efficient heating), and less flux consumption during smelting.

4. Safety and Environmental Protection: The entire system can be equipped with dust collection equipment in a closed environment, reducing dust pollution. The packaged material is less prone to oxidation and spontaneous combustion.

5. Significant Economic Benefits: Although there is an initial equipment investment, the payback period is typically short due to increased product selling prices and reduced transportation and smelting costs.

IV. Implementation Recommendations and Precautions

Investment Assessment: Clearly define your raw material sources, annual processing capacity, and product positioning to select a suitable configuration.

Equipment Quality: The quality of core equipment (shredder blades, eddy current separator magnetic rollers) is crucial, directly affecting lifespan and sorting efficiency.

Power and Space: Ensure sufficient power supply (especially for large shredders and balers) and plant space (equipment layout must consider material flow).

Environmental Requirements: Consult local environmental protection authorities to install necessary noise control and dust collection devices (such as pulse dust collectors). Operation and maintenance: Establish a regular maintenance system, especially for the inspection and replacement of worn cutting tools.