Improving Conveyor Belt Tracking and Reducing Airborne Dust on a Re-design of a PRB Coal-Fired Power Plant Conveyor Transfer System
By Phil Wowak and Aaron Gibbs
Article Published in World Coal – June 2012
One of the big challenges to the safe conveying of coal, especially sub-bituminous coal such as that from the Powder River Basin (PRB), is dealing with the fuel’s high concentration of fine dust. The presence of this dust, combined with PRB coal’s high moisture content (20- 30% ), raises the risk of spontaneous combustion. Properly designed, maintained and operated conveyer belt systems play a major role in the safe handling of PRB coal.
Particular attention must be paid to cleaning because the buildup of dust on and along conveyors and transfer points poses safety problems. However, even fanatical cleaning is no substitute for a well-designed and operated coal conveying system. There are three major areas of concern to minimize dusting and spillage on a typical conveyor:
• Load zone transfer points.
• Discharge point belt cleaners.
• Belt tracking.
The ASGCO® Dry Wipe Conveyor Belt Cleaner is designed to be the final cleaner in a cleaning system on the conveyor belt. When there is still water remaining on the belt after the primary and secondary cleaners have done their job, this can cause a mess along the belt line. The squeegee effect of the Dry Wipe Cleaning system can wipe the belt dry.
Today’s aggregate industry is filled with challenges. Foremost, to produce enough aggregate for cement, asphalt and other products for homes, businesses, schools, hospitals, and infrastructures. Also, operators must address environmental responsibility concerns that dictate the use of best practices to protect both natural resources and future generations of citizens.