Elevator Control Panel
MVI has recently successfully designed, built, installed, and commissioned an elevator control system for use in an underground coal mine located in southwest Pennsylvania. MVI personnel also participated in the ANSI 17.1 testing for the newly installed elevator. The control system for this installation uses a PLC to both control the operation of the elevator…
READ MOREAutomatic Greaser Panel
If properly lubricated, anti-friction bearings can last a very long time. However, as the size and number of bearings on a piece of equipment increases, proper bearing lubrication can be a very labor-intensive job. Working with our customer, MVI has developed a PLC-controlled automatic greaser panel (AGP) that will dispense the proper amount of grease…
READ MOREFiber Optic Networking Hub
We were approached by one of our customers to assist them with upgrading one of their underground fiber optic networking hubs. Communications in the mine environment is critical, especially when monitoring of fans, pumps, belts, and diesel systems require constant uptime; if any of these go down, even for a short time, workers sometimes have…
READ MOREUnderground Block Lighting
The objective was to create an underground railroad traffic control system for unattended areas in a large mine. This system consists of a light pod to be mounted at each end of a “block tunnel.” The light pod would have a green (proceed) and red (stop) signal, so that approaching vehicles would know whether or…
READ MORERock Dust Tank
The objective was to create a rock dust tank system at a mine site in order to facilitate receiving material from a transport truck, storage of the rock dust on the surface, and delivery of material underground to a waiting rock dusting pod. Because proper applications of rock dust can prevent the propagation of coal dust…
READ MOREEliminate Trial and Error with ETAP
Cost Effectiveness and Efficiency through Power System Analysis At a large underground mine utilizing two power sources, mine personnel wanted to use the second source to feed some of the mining loads that were being supplied by the first source of power. The first source was supplied from the electric utility and the second source…
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