Triple Track Mobile Sizer
The Triple Track Mobile Sizer (TTMS) has mainly been used in the removal of overburden and expose the precious iron ore floor allowing extraction by other mechanical mining processes. The TTMS system derives its name from its unique suspension undercarriage. It is triangular in nature and thus ensures an inherently stable three-point suspension for superb stability. This design reduces stress on the main frame structure.
The system is unique in the fact that it was designed to be completely mobile and move under load. There are no outriggers and/or feet that need to be lowered to improve stability. The TTMS operator simply controls the machine using a joystick to follow the excavation path of the shovel. Sensors throughout the system analyze and adjust the downstream conveyors to constantly realign themselves relative to the TTMS position. The operator’s job is thus simplified in that he can monitor shovel/sizer activities and the attached conveyor systems will automatically align to his path forward. Twin hoppers and apron feeders on each machine were not only designed for increased machine availability, but to also allow the client the option of feeding both hoppers directly with two smaller hydraulic shovels.The face shovel removes overburden and dumps it into one of the TMMS’s two hoppers. In the bottom of each hopper there is an apron feeder operating on a slight incline to lift and feed the overburden into the TTMS sizer unit. Counter-rotating teeth in the sizer break the overburden into the specified lump size. As the material is “sized”, it drops onto a discharge conveyor under the sizer, which carries the now sized material to an elevating conveyor, which, in turn, transports the material to one of the hoppers on the Mobile Bridge Conveyor.
The TTMS incline conveyor is supported by the main chassis of the TTMS at its tail, and the Mobile Bridge loading hopper at its head. The incline conveyor can slew around its tail loading point to ensure it maintains contact with the hopper of the Mobile Bridge. The incline conveyor also has telescoping capability so the TTMS has some freedom of movement relative to the Mobile Bridge.
Overburden material then travels from the Mobile Bridge to a Mobile Stacking System. This stacking system can be configured to match the client’s mine plan.