Pneumatic conveyor for calcined coke sparks electrode supplier's interest
An electrode supplier's experience conveying calcined coke with a bucket elevator leads to the installation of a dilute-phase pneumatic conveyor.
Sigri Great Lakes Carbon [SGL Carbon] in Ozark, Ark., is a leading supplier of graphite electrodes used in electric-arc steel furnaces. At the electrode supplier's plant, blower-equipped trucks pneumatically unload calcined coke powder, which is used in large quantities in a process indirectly related to electrode manufacturing. The coke is stored in a steel silo that holds 320 tons, stands about 45 feet tall, and measures about 12 feet across. The coke, which is abrasive and hard to handle, is -20 mesh and weighs 55 lb/ft3.