Title:
雰囲気炉の耐火物の点検方法及び還元鉄の製造方法
Document Type and Number:
Japanese Patent JP7067413
Kind Code:
B2
Abstract:
To provide a method for suitably inspecting the refractory of an atmospheric furnace.SOLUTION: A method for inspecting the refractory of an atmospheric furnace is the one for inspecting the refractory of an atmospheric furnace containing: a heating chamber; a refractory arranged around the heating chamber; and a steel shell arranged at the outside of the refractory. The method comprises the steps of: measuring the temperature of the steel shell during working of the atmospheric furnace (S1-1); measuring the residual thickness of the refractory at the place with the temperature measured and the thickness of an infiltration layer formed at the refractory (S1-2); obtaining the damage rate of the refractory based on the residual thickness of the refractory and the thickness of the infiltration layer (S1-3); obtaining a correspondence between the damage rate and the temperature of the steel shell (S1-4); determining a standard temperature corresponding to a prescribed standard damage rate from the correspondence (S1-5); and inspecting whether the temperature of the steel shell is below the standard temperature or not (S2).SELECTED DRAWING: Figure 1
Inventors:
Takayuki Morioka
Hiroki Hasegawa
Masaki Yoneda
Kazuhiro Uemura
Hiroki Hasegawa
Masaki Yoneda
Kazuhiro Uemura
Application Number:
JP2018198713A
Publication Date:
May 16, 2022
Filing Date:
October 22, 2018
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
F27D1/00; C21B13/00; F27D21/00
Domestic Patent References:
| JP2008127619A | ||||
| JP2010281515A | ||||
| JP2015210037A | ||||
| JP2003049213A | ||||
| JP2015178930A |
Attorney, Agent or Firm:
Hidetoshi Ueba
Satoshi Komiyama
Satoshi Komiyama
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