FIELD: heating.
SUBSTANCE: invention refers to ferrous metallurgy, and namely to heat utilisation devices of waste flue gas of process units, and can be used for heating furnaces of rolling mills, arc steel making furnaces and gas vents of converters.
EFFECT: invention allows improving a heat utilisation device of waste flue gas of process units by enlarging its process capabilities owing to introducing to it of new links forming a joint heating, hot and cold water supply system, which provides more complete use of heat of waste flue gas.
1 dwg
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