Arrival of custom excavation equipment in SA
Global-Tech Green Energy & Minerals, Canada Ltd announces the arrival of both the custom-built Material Hopper and Graphite Chipper to the Zimbabwe mine site from South Africa.
Two separate foundations were constructed to accommodate the commercial Filter Press. The equipment will be strategically placed one meter from the base of the product thickener tank. This will establish the shortest distance between the equipment for the graphite concentrate slurry to effectively enter the filter press from the product thickener tank. The press will be fitted onto two separate steel legs, with a custom-built catwalk surrounding the entire unit. This ensures staff safety when working around and servicing the equipment. Upon securing the Filter Press on the new foundations, a conveyor will be positioned below the output of the Press and placed at a 12° angle to more efficiently feed the graphite cake concentrate into the material chipper.
At 16 feet long, the Filter Press will have the capacity to process 5 tonnes of graphite concentrate per hour and will reduce the moisture content up to 92% before the concentrate enters the custom-built chipper. It will then make its way from the chipper into the rotary drying unit. Water that has been extracted from the filter press will be routed back to the settling reservoir tanks. From there it will be recirculated through the custom-designed water filtration and deionization unit for continued use in the commercial processing plant. The Filter Press is a large component of the Company achieving its goal of a 95% water recycling rate during the graphite processing phase.
The company's custom-built material chipper will be placed on a separate concrete foundation from the filter press. A two-tonne capacity hopper has been constructed adjacent to the chipper's output to supply a continuous feed of graphite cake material to the rotary dryer unit. These components will complete the drying circuit of the Aukam 20,000 tonnes per annum commercial graphite processing plant.
The Material Hopper foundation work has been completed in conjunction with the cyclone foundation work. Once the concrete has cured, the custom-built hopper will be installed and mounted onto its new foundation. A supply conveyor will be installed and positioned to feed the material hopper with graphite containing material from the previously installed crushing and screening circuit. The variable speed drive screw conveyor (VSD) that is mounted inside the hopper will be positioned to feed the already installed commercial-sized rod mill. The material hopper is designed to hold 80 tonnes of material to allow for a 1 and a half days' supply buffer to the processing plant.