Hytec South Africa recently custom designed and manufactured a 6000 ton power pack for a mine in Lephalale. Supplied in a three metre shipping container, the solution is equipped with a pressurisation unit, control electronics and automated lighting. The power pack was designed, manufactured and commissioned at the Rexroth HUBB in Kempton Park.
The containerised system controls the belt feeder on a coal conveyor to determine the amount of coal feeding into the line using proportional control. Independent knife gate control systems control the chute closing with a 350 kN force. Its pressurisation unit supplies clean filtered air at a positive pressure to the inside of the unit, ensuring dust is kept out, and all filters have a 100% back-up system to prevent downtime.
“In using a shipping container, we are able to offer the customer a mobile hydraulic room,” says Hytec South Africa project manager, Neil Griezel. “The 6000 ton power pack has an automated lighting system, which is activated when the door is opened, and the inside of the container acts as a secondary containment system in the event of hydraulic liquids being expelled from the system.”
The power pack was released following a rigorous factory acceptance test, which was witnessed by the customer. The unit is currently being installed by Hytec South Africa’s professional installation team. On site at the Lephalale mine, the plug-and-play unit will be connected to all the hydraulic actuators, switched on and be ready for use.
“We were given specific mechanical parameters to ensure proper integration with the customer’s final design,” concludes regional systems sales engineer, Werner Voigt. “This specialised solution is one more example of how Hytec South Africa has the capability to manufacture whatever a client requires.”
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