Rebuilding of the stack, bosh and hearth of a blast furnace usin

Details Rebuilding of the stack, bosh and hearth of a blast furnace usin Rebuilding of the stack, bosh and hearth of a blast furnace usin

1987-10-01

1989-08-29

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Repairing

266 44, 75 41, C21B 500, C21B 1300, C21B 1500

Patent

active

048604224

ABSTRACT:
The disclosed process uses a vertical remote controlled refractory gunning apparatus to repair damages to the stack, bosh, or hearth of a blast furnace. In the disclosed method, a reusable opening is created in the side of the blast furnace and a gantry, for example, is inserted through the reusable opening. The vertical remote-controlled refractory gunning apparatus is then introduced into the blast furnace via the gantry. In those cases wherein the blast furnace is loaded through a chute, the chute is moved to one side, the gantry is introduced at an angle and the vertical remote controlled refractory gunning apparatus is introduced through the opening.

REFERENCES:
patent: 4577385 (1986-03-01), Omae et al.
patent: 4793595 (1988-12-01), Head et al.

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