PRODUCTION STEEL COMPLEX AND OPERATING METHOD OF PRODUCTION COMPLEX Russian patent published in 2019 - IPC C21B5/06 C21B7/00 C21C5/38 

FIELD: foundry.

SUBSTANCE: invention relates to a steel production complex, which includes a blast furnace for production of cast iron, a converter for production of unrefined steel, gas discharge system for gases originating in production of cast iron and/or unrefined steel, and power plant for electric power generation. Power plant is structurally made in the form of gas-turbine power plant or gas-turbine and steam-turbine power plant and operates on gas, which contains at least part of blast-furnace gas, which occurs in blast furnace during iron production, and/or part of converter gas, which occurs in converter during steel production. Production complex additionally includes chemical plant for production of chemical products and biotechnological installation for biochemical processes, which are located parallel to gas supply, as well as coke battery for coke production. Gas-discharge system includes technologically controlled gas-distributing device for separation of gas flows, which are supplied to power plant, chemical plant and biotechnological unit.

EFFECT: invention makes it possible to increase economic efficiency of the whole process and to create a production complex which enables to reduce steel production costs.

21 cl, 2 dwg