Typical wear problems – Damage patterns

Broken roller grate bars

head burned open by primary air

Casting quality: Shrink holes and surface quality

Cornece formations: ash and slag building up at the brick wall

Cracks

Fischgraete – air slits in the wrong area of the grate bar

Foreign obstacles and stones

Fuel

Lifting grate bars

Non-ferrous steel

Nozzles in the head

Nozzles on surface

Overheating of head

Overlapping grate bars

Sulfur

Transportation

Washed out areas on surface