(19)
(11) EP 1 640 461 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
26.09.2007 Bulletin 2007/39

(43) Date of publication A2:
29.03.2006 Bulletin 2006/13

(21) Application number: 05108730.2

(22) Date of filing: 21.09.2005
(51) International Patent Classification (IPC): 
C21B 7/18(2006.01)
F27D 3/00(2006.01)
 F27B 1/20(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(30) Priority: 21.09.2004 IT MI20041799

(71) Applicant: ROAM 2000 S.r.L.
74100 Taranto TA (IT)

(72) Inventor:
  • Chiffi, Cosimo
    74100 Taranto (IT)

(74) Representative: Baroni, Matteo et al
Bugnion S.p.A. Viale Lancetti, 17
20158 Milano
20158 Milano (IT)

   


(54) Distributing chute particularly for blast furnaces


(57) It is disclosed a rotating chute for distribution of the charge in blast furnaces in which a first portion (2) defining an impact region of the feed material has a plurality of box-shaped modules (4) to retain part of the feed material and reduce problems connected with wear.
A second portion (3) defining a sliding region for the feed material has a reinforced structure in section consisting of an outer load bearing shell (19), a first reinforcing shell (20) disposed internally of the preceding one, a second reinforcing shell (22) extending longitudinally as far as the impact region and finally a wear-resistant wall secured to the second reinforcing shell (22). The structure appears to be monolithic and cell-like and, due to an engagement system by mechanical fitting with subsequent welding, use of bolting operations can be avoided, the structure appearing mechanically more resistant.
The conceived distributing chute further has a particular rear closing structure (10) and a protection body (18) disposed at the front to shield the chute plates from flames.







Search report