F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
F27B 9/36 (2006.01) F27D 25/00 (2010.01) B21B 37/74 (2006.01) C21D 1/52 (2006.01) C21D 11/00 (2006.01) F27B 9/24 (2006.01) F27B 9/40 (2006.01) F27D 99/00 (2010.01) C21D 9/00 (2006.01) F27B 9/02 (2006.01)
Patent
CA 2183724
Method to equalise the temperature in a heating furnace (10) with a controlled-oxidisation ambient, the furnace (10) comprising at least one insulated chamber (11) cooperating with a supporting and conveying surface defined by a plurality of rollers (12), the rollers (12) including rings (35) to bear slabs (19), a plurality of burners (18) being comprised in cooperation with the upper part of the furnace (10), whereas a plurality of aspiration intakes (21) is included in cooperation with the lower part of the furnace (10), the feed to the burners (18) being adjusted in such a way as to ensure a strongly oxidising atmosphere within the furnace (10) so as to obtain a desired and controllable layer of scale on the surface of a slab (19) in the furnace (10), this strongly oxidising atmosphere being conveyed so as to surround and lap continuously and evenly the whole periphery of the slab (19), the furnace (10) cooperating downstream with a descaling assembly (22) to remove the layer of scale thus formed. Heating furnace (10) with a controlled-oxidisation ambient, which comprises at least one insulated chamber (11) cooperating with a supporting and conveying surface defined by a plurality of rollers (12), the rollers (12) including rings (35) to support slabs (19), a plurality of burners (18) being included in cooperation with the upper part of the inside of the furnace (10), whereas a plurality of aspiration intakes (21) cooperates with the lower part of the inside of the furnace (10), the furnace (10) comprising a plurality of diversion baffles (20) to convey and direct fumes and gases, the baffles (20) being positioned in cooperation with the burners (18) and extending vertically to a position close to the upper surface of the slab (19), the burners (18) being fed in such a manner as to create a - 16 - strongly oxidising atmosphere within the furnace (10).
Fasoli Fabio
Millone Roberto
Danieli & C. Officine Meccaniche S.p.a.
Goudreau Gage Dubuc
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