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

1989-05-25

1990-07-10

Bennet, Henry A.

Furnaces

Tuyeres

432 99, 122 66, F23L 500, F23L 100

Patent

active

049400053

ABSTRACT:
The device is composed of several tubular elements equipped with an inner refractory lining and connected, on one side, to the wall of the furnace by means of a downpipe, an elbow, a tuyere and a nozzle and, on the other side, to a main circular pipeline arranged round the furnace and fed with preheated air. Cooling coils are embedded in the mass of refractory lining and are fed with cooling air circulating through the coils in the same direction as the preheated air. The outlet of the coils opens into the inner conduit conveying the preheated air.

REFERENCES:
patent: 3766868 (1973-10-01), Mahr
patent: 3972704 (1976-08-01), Loxley et al.
patent: 4574711 (1986-03-01), Christian

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