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MOLTEN SILICA VITREOUS CASTABLE REFRACTORY, PRECAST BLOCK FOR COKE OVENS AND METHOD FOR PRODUCING MOLTEN SILICA VITREOUS CASTABLE REFRACTORY
PROBLEM TO BE SOLVED: To inhibit the crystallization of molten silica glass and improve volume stability in a molten silica vitreous castable refractory.SOLUTION: A molten silica vitreous castable refractory contains molten silica glass of 80 mass% or more and is solidified by the aggregating of impalpable powder silica with a particle size of less than 1 μm. In the molten silica vitreous castable refractory, the total of AlO, PO, BOcomponents is 0.5 mass% or more and 2.5 mass% or less; a mass ratio ((AlO+PO+BO)/(NaO+KO)) between the total of AlO, PO, BOcomponents and the total of NaO and KO components is 4 or more; and a mass ratio (PO/AlO) between POand AlOcomponents is 1.5 or more.SELECTED DRAWING: None
【課題】溶融シリカガラス質キャスタブル耐火物において、溶融シリカガラスの結晶化を抑制し、かつ容積安定性を向上すること。【解決手段】溶融シリカガラスを８０質量％以上含有し、粒径１μｍ未満の超微粉シリカを凝集することで固める溶融シリカガラス質キャスタブル耐火物において、Ａｌ２Ｏ３，Ｐ２Ｏ５，Ｂ２Ｏ３の成分合計を０．５質量％以上２．５質量％以下、Ａｌ２Ｏ３，Ｐ２Ｏ５，Ｂ２Ｏ３の成分合計とＮａ２ＯとＫ２Ｏの成分合計の質量比（（Ａｌ２Ｏ３＋Ｐ２Ｏ５＋Ｂ２Ｏ３）／（Ｎａ２Ｏ＋Ｋ２Ｏ））を４以上、かつＰ２Ｏ５とＡｌ２Ｏ３の成分の質量比（Ｐ２Ｏ５／Ａｌ２Ｏ３）を１．５以上とする。【選択図】なし
MOLTEN SILICA VITREOUS CASTABLE REFRACTORY, PRECAST BLOCK FOR COKE OVENS AND METHOD FOR PRODUCING MOLTEN SILICA VITREOUS CASTABLE REFRACTORY
PROBLEM TO BE SOLVED: To inhibit the crystallization of molten silica glass and improve volume stability in a molten silica vitreous castable refractory.SOLUTION: A molten silica vitreous castable refractory contains molten silica glass of 80 mass% or more and is solidified by the aggregating of impalpable powder silica with a particle size of less than 1 μm. In the molten silica vitreous castable refractory, the total of AlO, PO, BOcomponents is 0.5 mass% or more and 2.5 mass% or less; a mass ratio ((AlO+PO+BO)/(NaO+KO)) between the total of AlO, PO, BOcomponents and the total of NaO and KO components is 4 or more; and a mass ratio (PO/AlO) between POand AlOcomponents is 1.5 or more.SELECTED DRAWING: None
【課題】溶融シリカガラス質キャスタブル耐火物において、溶融シリカガラスの結晶化を抑制し、かつ容積安定性を向上すること。【解決手段】溶融シリカガラスを８０質量％以上含有し、粒径１μｍ未満の超微粉シリカを凝集することで固める溶融シリカガラス質キャスタブル耐火物において、Ａｌ２Ｏ３，Ｐ２Ｏ５，Ｂ２Ｏ３の成分合計を０．５質量％以上２．５質量％以下、Ａｌ２Ｏ３，Ｐ２Ｏ５，Ｂ２Ｏ３の成分合計とＮａ２ＯとＫ２Ｏの成分合計の質量比（（Ａｌ２Ｏ３＋Ｐ２Ｏ５＋Ｂ２Ｏ３）／（Ｎａ２Ｏ＋Ｋ２Ｏ））を４以上、かつＰ２Ｏ５とＡｌ２Ｏ３の成分の質量比（Ｐ２Ｏ５／Ａｌ２Ｏ３）を１．５以上とする。【選択図】なし
MOLTEN SILICA VITREOUS CASTABLE REFRACTORY, PRECAST BLOCK FOR COKE OVENS AND METHOD FOR PRODUCING MOLTEN SILICA VITREOUS CASTABLE REFRACTORY
溶融シリカガラス質キャスタブル耐火物、コークス炉用プレキャストブロック及び溶融シリカガラス質キャスタブル耐火物の製造方法
KITAZAWA HIROSHI (author)
2018-02-15
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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