Scrap Preheating and Decoating

This category is limited to the pretreatment stage before aluminum scrap enters a melting furnace. The documented rotary kiln continuously combines drying, deoiling, decoating and preheating in a sealed system; a project can include feeding, low-oxygen treatment, secondary combustion, heat recovery, discharge conveying and PLC controls. For melting and downstream dross-treatment choices, use the broader Recycling Equipment process guide.

When this pretreatment stage fits

• The feed is UBC, aluminum scrap, chips or alloy offcuts with moisture, oil or coatings
• Continuous drying, deoiling, decoating and preheating are required before melting
• Secondary combustion and recovered flue-gas heat can be incorporated into the project
• The required capacity fits the published 1–3, 3–5, 5–8 or 8–10 t/h model range

Confirm before selection

• Feedstock type, bulk density, oil or coating content and moisture level
• Required hourly throughput, operating schedule and target discharge temperature
• Available fuel or usable furnace flue-gas conditions
• Feeding, discharge conveying and downstream melting arrangement
• Local emission, power, control and safety requirements

See the high-efficiency scrap aluminum preheating and decoating kiln for the published process principle, technical features, model range and images.