Coal distribution baffles are primarily used inside coal mills to control the direction of coal flow and ensure uniform distribution. Due to prolonged exposure to high-velocity coal dust and particles, the baffle surfaces are prone to erosive wear, which compromises flow guidance and leads to uneven material distribution.

Repairing the flow-guiding surfaces using hardfacing techniques effectively enhances wear resistance and maintains the design angles. This ensures stable coal flow distribution, minimizes localized material buildup and uneven equipment wear, improves grinding efficiency and system operational stability, and reduces the frequency of spare part replacements.