Upgrading Langer Heinrich Mine thickeners
Thickeners from different suppliers were upgraded:
A Lightnin thickener feedwell was upgraded and a robust thickener control was developed and tested as an LHM internal project only.
Delkor thickeners were upgraded as an LHM internal project in cooperation with Delkor. The thickener control as developed during the upgrading of the Lightnin thickener were implemented on several Delkor thickeners.
The Magra Ultrasep was upgraded to be more reliable, but improved performance remained elusive.
Comparative Pilot Test Campaign
The aim of this test work was to establish the influence of several parameters on the dewatering properties of slurry.
The parameters tested were:
- Ore type (13 different ore types)
- Water quality (3 different water sources)
- Particle size distribution
- Solids feed rate (solids flux rate)
- Flocculent dosing rate (g/ton solids)
- Thickener bed height