STR®System = Sorption Tailings Roasting System
is a self-developed and patented plant system of Engineering Dobersek for the optimization of gold extraction process, considering environment protection aspects. Based on the oxidizing roasting method, in particular, unused tailings utilized and total gold recovery is significantly increased.
FLUIDIZED BED FURNACE
Central of the STR System plant design with extensive periphery is a circulating fluidized bed furnace for oxidizing roasting of the CIL ("Carbon in Leach“) tailings.
In addition of the fluidized bed furnace a STR®System plant exists of the following segments and facilities:
- Dewatering unit
- Intermediate storage
- Drying and granulation
- Off gas dedusting, cleaning and desulfurization
- Cooling system
- Process and instrument air
- Electrical equipment, instrumentation and controls, automated control system