continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6214/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :16/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "MULTIPLE HOPPER CHARGING INSTALLATION FOR A SHAFT FURNACE"
(51) International classification :C21B 7/20 (71)Name of Applicant :
(31) Priority Document No :061006821.1 1)PAUL WURTH S.A.
(32) Priority Date :20/01/2006
Address of Applicant :32,RUE D'ALSACE, L-1122
(33) Name of priority country
:EUROPEAN
UNION
LUXEMBOURG Luxembourg
(72)Name of Inventor :
(86) International Application No :PCT/EP2006/070214 1)LONARDI, EMILE
Filing Date
:27/12/2006
2)THILLEN, GUY
(87) International Publication No :WO 2007/082630 3)THINNES, CLAUDE
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
4)LOUTSCH, JEANNOT
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
multiple hopper charging installation (10, 10') for a shaft furnace comprises a rotary distribution device (14) for distributing bulk
material in the shaft furnace (12) by rotating i distribution member about a central axis (A) of the shaft furnace and at least two
hoppers (20, 22) arranged in parallel and offset from the central axis above the rotary distribution device. Each hopper has a lower
funnel part (76) ending in an outlet portion (78) and each hopper has a material gate valve (82) with a shutter member (84) associated
to its outlet portion. According to the invention, each funnel part (76) is configured asymmetrically with its outlet portion (78) being
eccentric and arranged Proximate to the central axis (A), each outlet portion (78) is oriented vertically so as to produce a substantially
vertical outflow (140) of bulk material and each material gate valve (82) has a one-piece shutter member (84) and is configured with
its respective shutter member (84) opening in a direction pointing away from the central axis (A) such that any partial valve opening
area is located on the side of the associated outlet portion (78) proximate to the central axis (A).
No. of Pages : 33 No. of Claims : 12
The Patent Office Journal 24/10/2008 25741