JP4276564B2 - 高炉の操業方法 - Google Patents
高炉の操業方法 Download PDFInfo
- Publication number
- JP4276564B2 JP4276564B2 JP2004084701A JP2004084701A JP4276564B2 JP 4276564 B2 JP4276564 B2 JP 4276564B2 JP 2004084701 A JP2004084701 A JP 2004084701A JP 2004084701 A JP2004084701 A JP 2004084701A JP 4276564 B2 JP4276564 B2 JP 4276564B2
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- Prior art keywords
- blast furnace
- furnace
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- temperature
- series
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 18
- 230000000694 effects Effects 0.000 claims description 30
- 230000004907 flux Effects 0.000 claims description 30
- 238000001514 detection method Methods 0.000 claims description 14
- 238000004458 analytical method Methods 0.000 claims description 9
- 238000011017 operating method Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 2
- 239000000571 coke Substances 0.000 description 16
- 239000002184 metal Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 230000000875 corresponding effect Effects 0.000 description 11
- 239000002893 slag Substances 0.000 description 9
- 239000011449 brick Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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- Blast Furnaces (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Manufacture Of Iron (AREA)
Description
温度変化を直接測定し、温度の絶対値および温度上昇/下降を判断基準にして予め設定した装入TiO2 の増量・減風・休風等の操業条件を管理する方法を開示している。
高炉炉底の底盤中央に埋め込まれた第1の温度検知手段により計測された時系列の温度情報から得られた第1の時系列情報と、高炉炉底側壁の出銑口下部に埋め込まれた複数の第2の温度検出手段により計測された複数の時系列の温度情報から得られた第2の時系列情報とに基づいて、炉底底盤と炉底側壁の各出銑口下部とを組とする2変数のリカレンスプロットを出銑口本数分作成し、これらの2変数のリカレンスプロットから、0〜出銑口本数の範囲に分布するプロット点の個数である相関の数に応じて識別した合成リカレンスプロットを作成し、高炉炉底の活性度を該プロット点の個数である相関の数に基づいて多段階で判定し、該活性度に応じて高炉操業条件を変更することを特徴とする高炉の操業方法。
一例を示せば、炉底活性度レベルすなわち前記の炉底と側壁の相関の数に応じて図8に示すような基準を設けて操業を行なえばよい。
252…出銃口
301、302(1)〜302(4)…熱電対
303…炉底
Claims (2)
- 高炉炉底の底盤中央に埋め込まれた第1の温度検知手段により計測された時系列の温度情報から得られた第1の時系列情報と、高炉炉底側壁の出銑口下部に埋め込まれた複数の第2の温度検出手段により計測された複数の時系列の温度情報から得られた第2の時系列情報とに基づいて、炉底底盤と炉底側壁の各出銑口下部とを組とする2変数のリカレンスプロットを出銑口本数分作成し、これらの2変数のリカレンスプロットから、0〜出銑口本数の範囲に分布するプロット点の個数である相関の数に応じて識別した合成リカレンスプロットを作成し、高炉炉底の活性度を該プロット点の個数である相関の数に基づいて多段階で判定し、該活性度に応じて高炉操業条件を変更することを特徴とする高炉の操業方法。
- 前記2変数のリカレンスプロットを作成するステップは、前記第1の時系列温度情報と前記第2の時系列温度情報とから、逆問題解析により、前記各温度検出手段に対応する高炉炉底の稼働面での時系列の熱流束情報または温度情報を算出し、該熱流束情報または温度情情報に基づいて、炉底底盤と炉底側壁の各出銑口下部とを組とする2変数のリカレンスプロットを作成するステップであることを特徴とする請求項1記載の高炉の操業方法。
Priority Applications (1)
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JP2004084701A JP4276564B2 (ja) | 2004-03-23 | 2004-03-23 | 高炉の操業方法 |
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JP2004084701A JP4276564B2 (ja) | 2004-03-23 | 2004-03-23 | 高炉の操業方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005272880A JP2005272880A (ja) | 2005-10-06 |
JP4276564B2 true JP4276564B2 (ja) | 2009-06-10 |
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JP2004084701A Expired - Lifetime JP4276564B2 (ja) | 2004-03-23 | 2004-03-23 | 高炉の操業方法 |
Country Status (1)
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JP (1) | JP4276564B2 (ja) |
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2004
- 2004-03-23 JP JP2004084701A patent/JP4276564B2/ja not_active Expired - Lifetime
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JP2005272880A (ja) | 2005-10-06 |
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