Midwestern Power Cooperative
Frozen Limestone Handling System
Automation & Controls Commissioning
Designing an Emergency Reclaim System to Solve Bottlenecks in Limestone Handling
At one of this client’s power generation plants, limestone used for plant processes was exposed to the weather and froze during cold months. Reclamation of the frozen limestone created two bottlenecks. Frozen slabs would fall into pile activators and feeders, and pieces of stone would plug the discharge bin feeders halting operations.
Our team designed a new emergency reclaim system that consisted of a push wall extended by a Stamler feeder/breaker, a feed conveyor, a belt magnet and chutework with a diverter that allowed limestone to be fed directly to the plant’s limestone ball mill feed conveyors. Plant operations continued during installation.
This system went into service right before an especially cold winter, and it kept the entire plant running with no downtime—successfully achieving the client’s end goal for the project.