DEVICE FOR FEEDING OF NATURAL GAS INTO BLAST FURNACE Russian patent published in 2009 - IPC C21B7/16 

FIELD: metallurgy.

SUBSTANCE: invention relates to ferrous metallurgy, particularly to equipment of blast furnace for feeding of natural gas into blower nozzles. Device contains nozzle installed with formation of cooled cavity in breast, body of which is implemented in the form of inner and outer shells with side parts and flanges. In cooled cavity it is installed ring with formation near-face and near-flange parts of breast. Near-face part is connected to water inlet and outlet manifolds. Near-flange part is connected to natural gas inlet manifold with gas distribution collector by nozzles, and by natural gas outlet manifold - to nozzle.

EFFECT: reduction of heat losses with water cooling breast of tuyere stock of blast furnace and saving of coke for cast iron melting.

3 cl, 5 dwg