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Erection of the Apic jigs, Bateman Ultrasep and filter press.
The heart of the system showing some of the Apic jig’s mechanisms.
The completed Middelburg Ferrochrome jig plant. |
Middelburg Ferrochrome, South Africa (BOO) Middelburg Ferrochrome, established in 2002, located at Middelburg, South Africa, recovers ferrochrome from slag with a 95 % recovery rate. The recovery plant was designed to handle particle sizes up to 22 mm diameter with a capacity of 160 t/h but has been running well in excess of this figure since commissioning. The plant comprises both coarse and fines jigging facilities, as well as a hydro classifier for handling and concentrating ultrafines. This was the first plant to have such a built-in classifier unit. The separation system (both gate and through-the-bed) had been applied successfully in previous plants but was enhanced to provide increased operational stability and a reduced amount of misplaced material. An improved concentrate-extraction system was incorporated which, in addition to its steady and reliable operation, offers compactness (compared to bucket elevators) with very low maintenance costs. Water treatment covers both the reticulated water to the jigs, as well as slimes removal using a Bateman Ultrasep with the objective of achieving a zero effluent plant. The only water lost from the plant is through the adsorbed moisture in the final products. The slimes from the plant are discarded in a dry cake form. |
