FUEL FEED DEVICE Russian patent published in 2018 - IPC F23K3/00 F23D1/00 

FIELD: metallurgy; power engineering.

SUBSTANCE: invention refers to the field of power engineering and metallurgy. Fuel supply device comprises the cylinder, which is attached to the attachment section of the blast-furnace forcing pipe; the hollow rotary member, which is mounted within the cylinder, rotatable, which comprises the base, through which fuel is supplied to the inside of the rotary member; the pipe that is detachably attached to the end of the rotary member, which is adjacent to the blast furnace, which has the front end, through which fuel enters the blast furnace; and the retainer, which is attached to the cylinder with possibility of its removal, which holds the rotary member in the cylinder; wherein the cylinder has the inner periphery, which comprises the first sealing surface, the rotary member comprises the second sealing surface, and when the rotary member is located in the cylinder, the second sealing surface comes into close contact with the first sealing surface, in addition, the device includes the elastic member, which presses the second sealing surface of the rotary member to the first sealing surface of the cylinder.

EFFECT: invention allows to preserve the almost rectilinear shape of the pipe for a long period of time and to prevent damage to the tuyere.

8 cl, 7 dwg