Tuyere of blast furnace

Details Tuyere of blast furnace Tuyere of blast furnace

1987-12-28

1989-12-19

McDowell, Robert

Metallurgical apparatus

Means for introducing fluent into vessel, e.g., tuyere

Having means preventing damage to introducing means, e.g.,...

110263, 2391323, 266189, 266222, 266266, 266267, 431160, C21C 548

Patent

active

048878006

ABSTRACT:
A tuyere for a blast furnace comprises water-cooled tuyere; and a burner removably mounted inside the water-cooled tuyere to burning pulverize coal. The burner comprises an inner pipe, an intermediate pipe and an outer pipe which are concentrically arranged. The inside of the inner pipe is used for a pulverized coal path, an oxygen feed path being in between the inner pipe and the intermediate pipe and a flame temperature control gas feed path in between the intermediate pipe and the outer pipe. The burner is equipped with a water-cooled jacket outside of the top end of the burner.

REFERENCES:
patent: 296225 (1884-04-01), Schulze-Berge
patent: 1518854 (1924-12-01), Kirby
patent: 1849718 (1932-03-01), Ledbetter
patent: 2650161 (1953-08-01), Totzek
patent: 2920001 (1960-01-01), Smith et al.
patent: 3350084 (1967-10-01), Lucarell
patent: 4525175 (1985-06-01), Stellaccio
patent: 4666397 (1987-05-01), Wenning et al.
patent: 4736693 (1988-04-01), Clomburg, Jr.

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