JP2010163338A - 圧入施工用不定形耐火物 - Google Patents
圧入施工用不定形耐火物 Download PDFInfo
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Abstract
【解決手段】 本発明の圧入施工用不定形耐火物は、布袋の平均繊維間距離をXμmとしたとき、平均粒径X+50μm以上の球状化処理された粉体が40〜90質量%を占め、残部は球状化処理された粉体よりも平均粒径が小さい粉体よりなる耐火性粉体と、耐火性粉体に対する外かけ0.01質量%以上の量のパルプと、耐火性粉体に対する外かけ0.03質量%以上の量の増粘剤とを含む配合物に、施工水を加えて混練してなる。
【選択図】 図2
Description
Claims (4)
- 工業炉内面の目地となる間隙に配置された気液透過性をもつ筒状の布袋に圧入され、前記布袋を膨張させることにより、前記間隙を閉塞する圧入施工用不定形耐火物であって、前記布袋の平均繊維間距離をXμmとしたとき、平均粒径X+50μm以上の球状化処理された粉体が40〜90質量%を占め、残部は前記球状化処理された粉体よりも平均粒径が小さい粉体よりなる耐火性粉体と、前記耐火性粉体に対する外かけ0.01質量%以上の量のパルプと、前記耐火性粉体に対する外かけ0.03質量%以上の量の増粘剤とを含む配合物に、施工水を加えて混練してなる圧入施工用不定形耐火物。
但し、前記平均繊維間距離Xは、前記布袋の目付量をA[g/m2]、厚みをB[m]、真密度をC[g/m3]、単繊維直径をD[μm]としたとき、(πBCD2/4A)0.5−D[μm]と定義される。 - 前記布袋の平均繊維間距離が40〜90μmであり、前記球状化処理された粉体の平均粒径が180μm以上である請求項1に記載の圧入施工用不定形耐火物。
- 前記球状化処理された粉体の最大粒径がX+1000μm以下である請求項1又は2に記載の圧入施工用不定形耐火物。
- 前記布袋が、アラミド繊維を用いて形成されたシームレスな織布よりなる請求項1〜3のいずれかに記載の圧入施工用不定形耐火物。
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Cited By (2)
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JP2021050118A (ja) * | 2019-09-25 | 2021-04-01 | 因幡電機産業株式会社 | 耐火材、容器入り耐火材、及び、耐火材の施工方法 |
EP3120094B1 (en) * | 2014-03-21 | 2021-05-19 | Vesuvius U S A Corporation | Blast furnace hearth repair material |
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2009
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JPS5141010A (ja) * | 1974-10-03 | 1976-04-06 | Nippon Steel Corp | |
JPS6257098U (ja) * | 1985-09-27 | 1987-04-09 | ||
JPH06227869A (ja) * | 1993-02-05 | 1994-08-16 | Kurosaki Refract Co Ltd | 製鋼炉用熱間吹付補修材 |
JPH06256065A (ja) * | 1993-02-26 | 1994-09-13 | Kawasaki Refract Co Ltd | 熱間補修用耐火材 |
JPH07278626A (ja) * | 1994-04-15 | 1995-10-24 | Nippon Steel Corp | 高炉のステーブクーラー周辺への不定形耐火物の充填方法 |
JP2002318078A (ja) * | 2001-04-20 | 2002-10-31 | Shinagawa Refract Co Ltd | 不定形耐火物のポンプ圧送用先送り材およびポンプ圧送方法 |
JP2007314818A (ja) * | 2006-05-23 | 2007-12-06 | Nippon Steel Corp | 高炉のステーブクーラー周辺への不定形耐火物の充填方法 |
Cited By (3)
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EP3120094B1 (en) * | 2014-03-21 | 2021-05-19 | Vesuvius U S A Corporation | Blast furnace hearth repair material |
JP2021050118A (ja) * | 2019-09-25 | 2021-04-01 | 因幡電機産業株式会社 | 耐火材、容器入り耐火材、及び、耐火材の施工方法 |
JP7072804B2 (ja) | 2019-09-25 | 2022-05-23 | 因幡電機産業株式会社 | 耐火材、容器入り耐火材、及び、耐火材の施工方法 |
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