JP4469217B2 - 使用済みの耐火物のリサイクル方法 - Google Patents
使用済みの耐火物のリサイクル方法 Download PDFInfo
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- JP4469217B2 JP4469217B2 JP2004136738A JP2004136738A JP4469217B2 JP 4469217 B2 JP4469217 B2 JP 4469217B2 JP 2004136738 A JP2004136738 A JP 2004136738A JP 2004136738 A JP2004136738 A JP 2004136738A JP 4469217 B2 JP4469217 B2 JP 4469217B2
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- refractory
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- 239000011819 refractory material Substances 0.000 title claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 239000002994 raw material Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 238000004064 recycling Methods 0.000 claims description 10
- 238000007654 immersion Methods 0.000 claims description 6
- 239000000839 emulsion Substances 0.000 claims description 5
- 229920002050 silicone resin Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 description 23
- 238000010276 construction Methods 0.000 description 18
- 239000002245 particle Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 230000001788 irregular Effects 0.000 description 7
- 238000004898 kneading Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- UAMZXLIURMNTHD-UHFFFAOYSA-N dialuminum;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Mg+2].[Al+3].[Al+3] UAMZXLIURMNTHD-UHFFFAOYSA-N 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Compositions Of Oxide Ceramics (AREA)
- Ceramic Products (AREA)
Description
粉砕された使用済みの耐火物を、撥水性、遮水性のいずれか一方または双方を有する処理剤を用いて、浸漬処理し、耐火物の原料の一部または全部として使用する使用済みの耐火物のリサイクル方法であって、前記撥水性、遮水性のいずれか一方または双方を有する処理剤が、シリコーン樹脂の溶液またはエマルジョンであり、前記耐火物の原料として、添加率50質量%以上で前記浸漬処理された使用済みの耐火物をリサイクルさせることを特徴とする使用済みの耐火物のリサイクル方法である。
取鍋で使用済みの不定形耐火物(アルミナ−マグネシア質流し込み不定形材)を解体、破砕および粉砕後、20〜10mmと10〜5mmの粒度に篩分けした原料を、表1に示す通り、3種類の樹脂系処理剤の溶液またはエマルジョン中に浸漬処理後、100℃で24時間の乾燥を行った。
その結果、表1に示すように、無処理品に比べて撥水性や遮水性を有する処理剤によって浸漬処理した材料については、吸湿性は大幅に改善された。
表2に示す耐火物の原料を300t、溶鋼取鍋の底部(敷)に実際に適用した。
Claims (1)
- 粉砕された使用済みの耐火物を、撥水性、遮水性のいずれか一方または双方を有する処理剤を用いて、浸漬処理し、耐火物の原料の一部または全部として使用する使用済みの耐火物のリサイクル方法であって、
前記撥水性、遮水性のいずれか一方または双方を有する処理剤が、シリコーン樹脂の溶液またはエマルジョンであり、前記耐火物の原料として、添加率50質量%以上で前記浸漬処理された使用済みの耐火物をリサイクルさせることを特徴とする使用済みの耐火物のリサイクル方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004136738A JP4469217B2 (ja) | 2004-04-30 | 2004-04-30 | 使用済みの耐火物のリサイクル方法 |
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JP2004136738A JP4469217B2 (ja) | 2004-04-30 | 2004-04-30 | 使用済みの耐火物のリサイクル方法 |
Publications (2)
Publication Number | Publication Date |
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JP2005314193A JP2005314193A (ja) | 2005-11-10 |
JP4469217B2 true JP4469217B2 (ja) | 2010-05-26 |
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JP2004136738A Expired - Lifetime JP4469217B2 (ja) | 2004-04-30 | 2004-04-30 | 使用済みの耐火物のリサイクル方法 |
Country Status (1)
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JP (1) | JP4469217B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5573535B2 (ja) * | 2010-09-17 | 2014-08-20 | 新日鐵住金株式会社 | MgO−C系耐火物 |
DE102011102649C5 (de) * | 2011-05-27 | 2018-10-31 | Refratechnik Holding Gmbh | Feuerfestes Regeneratwerkstoff-Granulat, Verfahren zu seiner Herstellung sowie dessen Verwendung |
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2004
- 2004-04-30 JP JP2004136738A patent/JP4469217B2/ja not_active Expired - Lifetime
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JP2005314193A (ja) | 2005-11-10 |
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