GHI Hornos Industriales

Salt Slag Cooler

Salt slag cooling system

It is used to cool the salt slag used in rotary furnaces in aluminium recycling plants. The cooling system reduces the fumes emission and prevents the oxidation of the aluminium contained in the salt slag, thus increasing the metal recovery. Furthermore, it significantly reduces the plant space required this process.

Operation

The salt slag used in the rotary furnaces is poured into a dedicated conveyor and introduced into the trommel of the cooling system. The salt slag never gets in direct contact with the cooling water, which makes this system completely safe. Once the cooling cycle is completed, the dust and fines are transported to storage silos for further processing in salt recovery plants while coarse aluminium pieces are sent back to the melting furnace.

Value proposition

• Higher metal yield due to the recovery of aluminium in the salt slag by preventing its oxidation.
• Reduction of the required plant space by decreasing the amount of baskets by 90%.
• Less environmental impact.
• Improvement in plant safety.