TUYERE APPARATUS OF BLAST FURNACE Russian patent published in 2015 - IPC C21B7/16 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, namely to a tuyere apparatus of a blast furnace. A tuyere apparatus includes a tuyere housing designed for being installed in a wall of the blast furnace; besides, the tuyere housing includes the front surface facing inside the blast furnace and an opposite rear surface; with that, a tuyere channel is made from the rear surface to the front surface. The tuyere apparatus includes an air pipe connected between the rear surface of the tuyere housing and a hot blasting air supply system. The air pipe has the front part connected to the tuyere housing and an opposite rear part connected to the hot blasting air supply system. For fuel supply to the blast furnace a provision is made for a fuel injection tube, and for supply of an oxidising gas a provision is made for a gas injection tube. The fuel injection tube passes through the tuyere housing. The gas injection tube is located in the rear part of the air pipe with a possibility of supply of oxidising gas to a central part of a hot blasting air flow, which is supplied through the air pipe.

EFFECT: improvement of the design.

13 cl, 3 dwg