A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DRY SPRAY MATERIAL FOR FIRING FURNACE
To provide a dry spray material for a firing furnace improved in durability by suppressing physical impact and erosion reaction from matters at the inside of the furnace.SOLUTION: A dry spray material for a firing furnace having a furnace wall temperature of 1,400°C or less comprises one or more kinds selected from powdery alkali silicate and alkali phosphate by 0.2 or more to 10 mass% or less in total, boron carbide by 0.3 or more to 5 mass% or less, and the balance, mainly, one or more kinds selected from alumina raw materials, silica raw materials, alumina-silica raw materials, silicon carbide raw materials, magnesia raw materials, magnesia-calcia raw materials, and refractory raw materials after use comprising at least one kind of these raw materials, and SiO2 components derived from raw materials with a grain size less than 75 μm are comprised by 7 mass% or more in 100 mass% total of the dry spray material.SELECTED DRAWING: None
【課題】焼成炉用の乾式吹付材において、炉内物からの物理的な衝撃や侵食反応を抑制し、耐用を向上させる。【解決手段】炉壁温度が１４００℃以下の焼成炉用の乾式吹付材であって、粉末状の珪酸アルカリ及びリン酸アルカリのうちの１種又は２種以上を合計で０．２質量％以上１０質量％以下、炭化硼素を０．３質量％以上５質量％以下、残部に主として、アルミナ原料、シリカ原料、アルミナ－シリカ質原料、炭化珪素原料、マグネシア原料、マグネシア－カルシア質原料、及びこれらの原料の少なくとも１種を含む使用後耐火物原料から選択される１種又は２種以上を含有し、当該乾式吹付材の総量１００質量％中に、粒径７５μｍ未満の原料由来のＳｉＯ２成分を７質量％以上含有する。【選択図】なし
DRY SPRAY MATERIAL FOR FIRING FURNACE
To provide a dry spray material for a firing furnace improved in durability by suppressing physical impact and erosion reaction from matters at the inside of the furnace.SOLUTION: A dry spray material for a firing furnace having a furnace wall temperature of 1,400°C or less comprises one or more kinds selected from powdery alkali silicate and alkali phosphate by 0.2 or more to 10 mass% or less in total, boron carbide by 0.3 or more to 5 mass% or less, and the balance, mainly, one or more kinds selected from alumina raw materials, silica raw materials, alumina-silica raw materials, silicon carbide raw materials, magnesia raw materials, magnesia-calcia raw materials, and refractory raw materials after use comprising at least one kind of these raw materials, and SiO2 components derived from raw materials with a grain size less than 75 μm are comprised by 7 mass% or more in 100 mass% total of the dry spray material.SELECTED DRAWING: None
【課題】焼成炉用の乾式吹付材において、炉内物からの物理的な衝撃や侵食反応を抑制し、耐用を向上させる。【解決手段】炉壁温度が１４００℃以下の焼成炉用の乾式吹付材であって、粉末状の珪酸アルカリ及びリン酸アルカリのうちの１種又は２種以上を合計で０．２質量％以上１０質量％以下、炭化硼素を０．３質量％以上５質量％以下、残部に主として、アルミナ原料、シリカ原料、アルミナ－シリカ質原料、炭化珪素原料、マグネシア原料、マグネシア－カルシア質原料、及びこれらの原料の少なくとも１種を含む使用後耐火物原料から選択される１種又は２種以上を含有し、当該乾式吹付材の総量１００質量％中に、粒径７５μｍ未満の原料由来のＳｉＯ２成分を７質量％以上含有する。【選択図】なし
DRY SPRAY MATERIAL FOR FIRING FURNACE
焼成炉用の乾式吹付材
TOKUTOMI ATSUSHI (author) / KOGA MASANORI (author)
2022-05-23
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