BLAST FURNACE SLAG SENSIBLE HEAT RECOVERY DEVICE

摘要

PROBLEM TO BE SOLVED: To recover sensible heat of a blast furnace slag efficiently.

SOLUTION: A blast furnace slag sensible heat recovery device atomizes blast furnace slag using compressed air and allows sensible heat of the blast furnace slag to be absorbed by the air by heat exchange between the air and the slag particles while recovering heat. The blast furnace slag sensible heat recovery device includes: a gas atomizer 3 having an injection nozzle which injects gas upwards in an opposite direction to the gravity direction, and in which the slag particles are fed towards the gas injected from the injection nozzle; and a first heat exchange tower 4 composed of a tubular body extending upwards from the gas atomizer 3 and inside of which the atomizer gas and atomized slag particles flow upwards.

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