Coal Pulverizer RepairBack to
||Pennsylvania Power and Light|
||Utility Power Generation|
Wear Guard™ High Temp
This pulverizer would receive extreme wear from the abrasion of pulverizing or crushing coal prior to being fed to the boilers. The wear was so severe that the metal was completely worn through. Previous method of repair was to weld or replace missing metal with AR plates.
Repair area was roughened to a SSPC-SP5 white metal finish using a grinding machine. Gouges were ground into the metal to improve mechanical bonding properties of Wearguard High Temp.. All surface areas were chemically cleaned using Cleaner Blend 300. Wear Guard High Temp was applied to rebuild or replace missing metal. Wear Guard was smoothed, contoured and feathered using acetone as a thinning agent. Acetone should be used only after gel point or stiffening of Wear Guard High Temp.