Power station technology

Drying and pelletization of waste incineration ash

In a waste incineration plant, fly ash is created, which is initially rinsed to separate the chlorides. 

Subsequently, the still heavy metal loaded fly ash is dried in an AVA mixing dryer and then pelletized, with the aim of feeding the product back into the furnace. The final task is the complete disposal of non-recyclable pollutant fly ash. Instead slag ash is added after the incineration furnace, which can then be returned into the economic cycle as a valuable product.  

The essential components required for the functionality of the process are, among others, the peripherals around the mixing dryer such as the steam reduction station, the vapour condensation or the controls. In this respect, it is of advantage if the mixer manufacturer also adopts this peripheral equipment in order to avoid critical points in the coordination of several suppliers.

Machines used:

Horizontal dryers

Contact partner for applications:
applications(@)ava-huep.com

Download:
Power stations, ashes and dusts (PDF, 300 KB)