ROTARY KILN USING POWDER BURNER USING COATED NUGGET DEBRIS, ETC., AS AUXILIARY FUEL, AND ITS KILN OPERATION METHOD

摘要

PROBLEM TO BE SOLVED: To improve cost performance by adjusting dwelling time of covered nugget debris, etc., in a powder burner, and further reduce the consumption of auxiliary fuel such as heavy oil. SOLUTION: A fuel such as regenerated heavy oil, etc., is combusted with an oil burner 14 provided in the vicinity of the top of a powder burner 10 including a substantially cylindrical combustion chamber 12 provided vertically, and primary air and covered nugget debris, etc., are injected tangentially from a primary air injection hole 16 and is combusted while being turned in the combustion chamber. Industrial waste supplied into a rotary kiln 1 is incinerated by introducing produced flame into the rotary kiln 1 using a blow nozzle 30.