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The performance and wear of cooler grate plates depends mainly on their location in the cooler. There are three main zones: the hot zone, the intermediate zone and the cold zone. In the hot zone there is the high temperatures of clinker which can cause mechanical stresses due to clinker falling from the kiln. There are also thermal stresses which can be due to uneven exposure of the plates to hot material. The solution is to keep it cool. The patented Bar Grate Design gives optimal cooling through an air distribution system. It cools both grates AND clinker giving strong resistance against deformation. FMR61 alloy is helpful against oxidation, corrosion at high temperatures from sulphur and mechanical and thermal stresses.
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