BLAST FURNACE SLAG SENSIBLE HEAT RECOVERY DEVICE

摘要

Provided is a blast furnace slag sensible heat recovery device which atomizes blast furnace slag using compressed air, lets sensible heat of the blast furnace slag be absorbed by the air by heat exchange between the air and the slag particles, and recovers heat, characterized by comprising: a gas atomizer (3) having an injection nozzle which injects gas upwards in an opposite direction to the gravity direction, and in which molten slag is 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.