Fume intake and cooling device for electric arc furnaces

Details Fume intake and cooling device for electric arc furnaces Fume intake and cooling device for electric arc furnaces

1997-04-24

1999-04-20

Hoang, Tu B.

Industrial electric heating furnaces

Environmental control

373 2, 373 8, 373 73, 373 77, 266158, F27D 1700

Patent

active

058964096

ABSTRACT:
Fume intake and cooling device for intake conduits (11,111,211) in electric arc furnaces (26a,26b), comprising a containing structure (28) associated at one end (12) with an aperture on the roof of the furnace and connected at the second end (13) with an intake and filter system (27), the containing structure (28) having, in cooperation with its inner sidewalls, cooling means, the cooling means comprising a pipe (14), which is spiral shaped and has turns (16) lying on a plane substantially at right angles to the longitudinal axis of the conduits (11,111,211), the turns (16) being distanced with respect to each other in such a way as to form interstices (20) between adjacent turns (16), the interstices (20) through which the fumes pass serving to anchor the slag.

REFERENCES:
patent: 3740930 (1973-06-01), Cullom
patent: 4077614 (1978-03-01), Udo et al.
patent: 4350280 (1982-09-01), Kruse
patent: 4477910 (1984-10-01), Nijhawan et al.
patent: 5344122 (1994-09-01), Vuillermoz et al.

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