Carolina Stalite Co. uses a 3-D mapping process as a guide for selective mining of the slate that is best suited for the production of STALITE. The quarry’s location allows the raw slate to be efficiently conveyed directly to the rotary kilns. Carolina Stalite Co. has confirmed reserves of raw material to supply our needs throughout the 21st century.
After blasting, pit loaders are used to load the blasted rocks into haul trucks. Haul trucks move the rocks from the pit to the primary crusher at the processing plant. The primary crusher breaks the large rocks from the pit into smaller pieces. The primary crusher can crush between 300 and 2,000 tons per hour. As the rocks pass through the crushers, they are moved around the processing plant on conveyor belts.
After crushing, rocks are broken down to smaller sizes and go through a screening process. By using various size screens, the crushed rock can be separated by size. Some screens are larger and they allow the bigger rocks to pass through. Stalite’s process requires rocks be crushed and screened several times before they are put in a stockpile with other rocks the same size.