Terra Nova Technologies
Super Portable conveyors
TNT responded to clients’ needs in the late 1990s by developing the now-patented Super Portables technology.
Leaching methods at the time stacked materials parallel to shiftable conveyors that had to be moved numerous times by a dozer, typically about 3 feet (1 meter) at a time. While shifting was going on, the stacking process was disrupted.
Also, belt tripper design at the time used rail wheels that were subject to derailment, brakes that became useless after derailment, and a sometimes jerky propulsion movement due to wire rope stretching.
These issues were addressed by two new designs finalized by TNT in 1998, for which the Patents 6,085,890 and 6,098,780 were granted in 2000. These two designs – a new heap leach process and a new tracking, propulsion, and braking system for bridge tripper / hopper cars – have led to the development of larger portable conveyors that are safer to use and have much less downtime during operation.
Starting with rubber-tired conveyors averaging 125 feet in length, TNT was able to install in 2004 the first self-propelled, treaded conveyor under the “Super Portable” name. By 2007, the Super Portable’s original 215-foot length had reached 250 feet, TNT’s current standard.
Leaching methods at the time stacked materials parallel to shiftable conveyors that had to be moved numerous times by a dozer, typically about 3 feet (1 meter) at a time. While shifting was going on, the stacking process was disrupted.
Also, belt tripper design at the time used rail wheels that were subject to derailment, brakes that became useless after derailment, and a sometimes jerky propulsion movement due to wire rope stretching.
These issues were addressed by two new designs finalized by TNT in 1998, for which the Patents 6,085,890 and 6,098,780 were granted in 2000. These two designs – a new heap leach process and a new tracking, propulsion, and braking system for bridge tripper / hopper cars – have led to the development of larger portable conveyors that are safer to use and have much less downtime during operation.
Starting with rubber-
