Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
MAGNESIA SPINEL REFRACTORY BRICK
PROBLEM TO BE SOLVED: To provide a magnesia spinel refractory brick having enhanced hot strength without reducing corrosion resistance at high temperature and capable of being used in various kilns such as a cement rotary kiln.SOLUTION: There is provided a magnesia spinel refractory brick constituted by at least a magnesia raw material and a spinel raw material and containing MgO:75 to 94 mass%, AlO:5 to 22 mass%, ZrO:2 mass% or less (not inclusive of 0), and CaO:less than 3 mass% (not inclusive of 0) with CaO/ZrOmass ratio of 1.5 to less than 2.5.SELECTED DRAWING: None
【課題】高温での耐食性を低下させることなく、熱間強度の向上を図ったセメントロータリーキルン等の各種窯炉に用いることができるマグネシア・スピネル質耐火煉瓦の提供。【解決手段】少なくともマグネシア原料及びスピネル原料から構成され、ＭｇＯ：７５〜９４質量％、Ａｌ２Ｏ３：５〜２２質量％、ＺｒＯ２：２質量％以下（ゼロを含まず）、ＣａＯ：３質量％未満（ゼロを含まず）からなり、ＣａＯ／ＺｒＯ２質量比が１．５〜２．５未満であるマグネシア・スピネル質耐火煉瓦。【選択図】なし
MAGNESIA SPINEL REFRACTORY BRICK
PROBLEM TO BE SOLVED: To provide a magnesia spinel refractory brick having enhanced hot strength without reducing corrosion resistance at high temperature and capable of being used in various kilns such as a cement rotary kiln.SOLUTION: There is provided a magnesia spinel refractory brick constituted by at least a magnesia raw material and a spinel raw material and containing MgO:75 to 94 mass%, AlO:5 to 22 mass%, ZrO:2 mass% or less (not inclusive of 0), and CaO:less than 3 mass% (not inclusive of 0) with CaO/ZrOmass ratio of 1.5 to less than 2.5.SELECTED DRAWING: None
【課題】高温での耐食性を低下させることなく、熱間強度の向上を図ったセメントロータリーキルン等の各種窯炉に用いることができるマグネシア・スピネル質耐火煉瓦の提供。【解決手段】少なくともマグネシア原料及びスピネル原料から構成され、ＭｇＯ：７５〜９４質量％、Ａｌ２Ｏ３：５〜２２質量％、ＺｒＯ２：２質量％以下（ゼロを含まず）、ＣａＯ：３質量％未満（ゼロを含まず）からなり、ＣａＯ／ＺｒＯ２質量比が１．５〜２．５未満であるマグネシア・スピネル質耐火煉瓦。【選択図】なし
MAGNESIA SPINEL REFRACTORY BRICK
マグネシア・スピネル質耐火煉瓦
IGABO KOICHI (Autor:in) / MURAKAMI KOYO (Autor:in)
10.08.2017
Patent
Elektronische Ressource
Japanisch
IPC:
C04B
Kalk
,
LIME
/
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
/
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
METHOD FOR RECYCLING MAGNESIA-SPINEL BRICK, AND MAGNESIA-SPINEL BRICK
| Europäisches Patentamt | 2024