The aluminium recycling plant receives mixed input material that requires separation before it can be processed. The primary challenge was achieving complete collection of unwanted lightweight materials (plastic bags, paper) without simultaneously capturing aluminium cans. Due to the variable quality and quantity of material entering the production line, the suction system needed to be dynamic in character.
PM Engineering designed and installed a dynamic "Push-Pull" system that uses air jets to suspend lighter objects so they can be captured by the suction system. The air-injection zones were enclosed with metal housings to prevent material loss. The extracted air — now carrying papers and plastic bags — is directed to a high-efficiency polycyclone array whose cyclones share a common large collection hopper at the base. Material discharge into Big Bags is achieved via an oversized rotary airlock valve.
