Device for injecting preheated air into a shaft furnace

Details Device for injecting preheated air into a shaft furnace Device for injecting preheated air into a shaft furnace

F - Mech Eng,Light,Heat,Weapons

23

L

110/51

F23L 5/00 (2006.01) C21B 7/16 (2006.01)

Patent

CA 1317157

ABSTRACT Device for injecting preheated air into a shaft furnace The device is composed of several tubular elements equipped with an inner refractory lining (39) and connected, on one side, to the wall of the furnace by means of an elbow (16), a tuyere (183 and a nozzle (20) and, on the other side, to a main cir- cular pipeline arranged round the furnace and fed with preheated air. Cooling coils (36) are embedded in the mass of refractory lining (30) and are fed with cooling air circulating through the coils (36) in the same direction as the preheated air. The outlet (S) of the coils opens into the inner conduit (34) conveying the preheated air.

601074

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