Integrated installation comprises an air separation apparatus, a blast furnace, a unit for preheating the air, an adiabatic air compressor, a first pipe to introduce the air towards the preheating unit, and a unit for heating water

摘要

The integrated installation comprises an air separation apparatus, a blast furnace, a unit for preheating the air at top of the cowper type furnace, an adiabatic air compressor (S1, S2, S3), a first pipe to introduce the air towards the preheating unit, a second pipe connecting the air compressor with the air separation device, and a unit (11) for heating water in liquid and/or oxygen form by heat exchange with air for the air separation unit in the second pipe. A pipe is arranged for supplying heated water against the air to a boiler. The integrated installation comprises an air separation apparatus, a blast furnace, a unit for preheating the air at top of the cowper type furnace, an adiabatic air compressor (S1, S2, S3), a first pipe to introduce the air towards the preheating unit, a second pipe connecting the air compressor with the air separation device, and a unit (11) for heating water in liquid and/or oxygen form by heat exchange with air for the air separation unit in the second pipe. A pipe is arranged for supplying heated water against the air to a boiler and/or a pipe is arranged for supplying the water to be heated against air connected to a boiler. A unit is arranged for passing a waste gas from the blast furnace to the preheating unit. An independent claim is included for a process for operating the integrated installation.