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Calciner for complete raw calcining and fuel burning up to 60 % of total consumption. Useful volume of calcining channel enables duration of gases persistence up to 6 sec. It is used for classic fuels, but can be used also for worse combustible fuels, e.g. petro coke. It can be used for alternative fuels in higher percent. The important character is capability of making reduction zone for Nox liquidation. Easily burning of alternative fuels can be achieved by making zone with higher temperature on bottom. Combustion air for calcining channel is led through separate tertiary air duct.
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