Device for blowing preheated air into a shaft furnace

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

1994-03-14

1995-10-31

Dolinar, Andrew M.

Heating

Shaft type

Having combustion products generated in or fed to shaft

1101825, F27D 108

Patent

active

054624339

ABSTRACT:
The present invention relates to a device for blowing preheated air into a shaft furnace, comprising several separate tubular elements, wherein an outer shielding made of steel and an inner lining made of cast refractory concrete are connected in pairs by a ball joint and a compensator. The ball joint includes a convex pivot which is integral with a first tubular element and which can pivot in a concave dish integral with a second tubular element. At least the convex pivot of the ball joint comprises a profiled refractory brick anchored in the inner refractory lining made of cast refractory concrete.

REFERENCES:
patent: 3766868 (1973-10-01), Mahr
patent: 4023832 (1977-05-01), Legille
patent: 4027605 (1977-06-01), Legille
patent: 5209657 (1993-05-01), Benck et al.

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