Turmec was selected to take on the project due to its extensive knowledge and experience in this field.
The intricate project, currently being commissioned, will include the following:
- Scalping screens
- Independent feeders
- Trommel screen
- Eddy Current
- Multiple bay storage conveyor system
The process used a complex conveyor shuttling system so that the ash can be kept in any one of 5 storage bays. Being unique to the project, the belt was reinforced to transport hot ash, withstanding heat up to 500 degrees, and a different scraper was also needed for the abrasive material.
Materials are passed from feeder to the trommel screen before the oversize is scalped off, which is anything 35mm plus & magnet, ferrous recovery & non-ferrous recovery.
Fine fraction falls through a trommel and is passed under an electromagnet to remove the ferrous fraction and this is collected in a storage bin underneath.
Once the ferrous fraction is removed, the ash is passed over an eddy current separator, where the non-ferrous is ejected and collected in another storage bin underneath. The remainder of the ash continues towards maturation bays, which use the same shuttling system as over drying bays.