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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, as well as for alternative fuels, too. Combustion air for calcining channel is led through separate tertiary air duct.
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