Title:
BLAST FURNACE BLOWER
Document Type and Number:
WIPO Patent Application WO/2010/131586
Kind Code:
A1
Abstract:
Provided is a blast furnace blower in which a low alloy steel member exposed to oxygen-enriched air is prevented from being oxidized and the resultant strength reduction is prevented.
An oxidization/firing prevention layer (24) consisting of at least one of a non-ferrous metal and a ceramics is formed on the surface of a low alloy steel rotating shaft member (20) constituting a rotor used in oxygen-enriched air.
Inventors:
ISHIHARA SHUJI (JP)
ONO SHUICHIROU (JP)
SAWAI YUKIMITSU (JP)
ONO SHUICHIROU (JP)
SAWAI YUKIMITSU (JP)
Application Number:
PCT/JP2010/057664
Publication Date:
November 18, 2010
Filing Date:
April 30, 2010
Export Citation:
Assignee:
MITSUI SHIPBUILDING ENG (JP)
ISHIHARA SHUJI (JP)
ONO SHUICHIROU (JP)
SAWAI YUKIMITSU (JP)
ISHIHARA SHUJI (JP)
ONO SHUICHIROU (JP)
SAWAI YUKIMITSU (JP)
International Classes:
C21B7/00; F04D29/38
Foreign References:
| JP2006283093A | 2006-10-19 | |||
| JPH06317277A | 1994-11-15 | |||
| JP2008128198A | 2008-06-05 |
Attorney, Agent or Firm:
WATANABE, Mochitoshi et al. (JP)
Mochitoshi Watanabe (JP)
Mochitoshi Watanabe (JP)
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Claims: