Title:
高炉朝顔部構造およびその設計方法
Document Type and Number:
Japanese Patent JP4757960
Kind Code:
B2
Abstract:
A blast furnace bosh section structure is the structure of a cylindrical bosh section which is provided between a tuyere section and a furnace belly section of a blast furnace, and the diameter of which expands upwardly in the vertical direction, wherein the bosh section has a circular iron shell, a copper or copper alloy stave for the bosh section provided to the inner periphery of the iron shell, and a firebrick provided to the inner periphery of the stave for the bosh section, and wherein the thickness of the firebrick in the horizontal direction at the upper edge position of the bosh section is 50 to 250 mm, the thickness of the firebrick in the horizontal direction at the lower edge position of the bosh section is 200 to 500 mm, and the narrow angle formed by the surface and horizontal surface of the stave for the bosh section is 75 to 82° when the bosh section is observed on the cross section including the axis line thereof.
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Inventors:
Kuniyoshi Anan
Toshiyuki Nakama
Yoshiyuki Matsuoka
Toshiyuki Nakama
Yoshiyuki Matsuoka
Application Number:
JP2010550385A
Publication Date:
August 24, 2011
Filing Date:
September 29, 2010
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
C21B7/00
Domestic Patent References:
| JPH07278623A | 1995-10-24 | |||
| JPH06299215A | 1994-10-25 | |||
| JP2005248209A | 2005-09-15 |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Sumio Tanai
Hiroshi Masui
Tadashi Takahashi
Sumio Tanai
Hiroshi Masui