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Title:
SEAL STRUCTURE OF SOLID FEEDING SCREW, AND METHOD OF MANUFACTURING REDUCED METAL USING THE SEAL STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2004/070301
Kind Code:
A1
Abstract:
A seal structure of a solid feeding screw such as a raw material leveling screw and a product delivery screw installed in a heating furnace (1) capable of lifting the solid feeding screw (3) while assuring the airtightness of the heating furnace (1) even during an operation, wherein the drive shaft (4) of the solid feeding screw (3) is passed through through-holes (6) formed in both side walls (2) of the heating furnace (1) and supported on liftable support devices(7) installed on both outer sides of the furnace, seal blocks (8) are installed at the furnace outside edge parts (6a) of the through-holes (6) so as to surround the peripheries of the through-holes (6), slide panels (9) having slidable movement holes (10) allowing the drive shaft (4) to be passed therethrough and slidably move therein are installed on the furnace outside of the seal blocks (8), and the slide panels (9) are pressed against the seal blocks (8) through the seal members (11) to such a degree that can be slidably moved in vertical direction.

Inventors:
Hashimoto, Sumito c/o KABUSHIKI KAISHA KOBE SEIKO SHO (10-26 Wakinohamacho 2-chome, Chuo-k, Kobe-shi Hyogo, 651-8585, JP)
Tetsumoto, Masahiko c/o KABUSHIKI KAISHA KOBE SEIKO SHO (10-26 Wakinohamacho 2-chome, Chuo-k, Kobe-shi Hyogo, 651-8585, JP)
Application Number:
PCT/JP2003/016684
Publication Date:
August 19, 2004
Filing Date:
December 25, 2003
Export Citation:
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Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO (10-26, Wakinohamacho 2-chome Chuo-k, Kobe-shi Hyogo, 651-8585, JP)
Hashimoto, Sumito c/o KABUSHIKI KAISHA KOBE SEIKO SHO (10-26 Wakinohamacho 2-chome, Chuo-k, Kobe-shi Hyogo, 651-8585, JP)
Tetsumoto, Masahiko c/o KABUSHIKI KAISHA KOBE SEIKO SHO (10-26 Wakinohamacho 2-chome, Chuo-k, Kobe-shi Hyogo, 651-8585, JP)
International Classes:
F16J15/40; C21B11/08; C21B13/10; F16J15/16; F27B7/24; F27B9/30; F27B9/39; F27D3/08; F27D7/06; F27D99/00; (IPC1-7): F27D3/08
Foreign References:
JP2001304766A
JPH09217989A
JPH05196363A
JPS6096597U
JPS60104698U
Other References:
See also references of EP 1591739A1
Attorney, Agent or Firm:
Kotani, Etsuji (Nichimen Building 2nd Floor, 2-2 Nakanoshima 2-chome, Kita-k, Osaka-shi Osaka, 530-0005, JP)
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