A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR PRODUCTION OF CHECKER BRICK FOR AIR HEATING FURNACE
PROBLEM TO BE SOLVED: To provide a method for production of checker brick for an air heating furnace, free from cracking in molding and having sufficient strength of a product.SOLUTION: The method for production of a checker brick includes steps of kneading, molding, drying, and then firing of a refractory raw material compound comprising 10-50 mass% of a mullite raw material, 20-60 mass% of a corundum-containing raw material, 10-30 mass% of one or more of a sillimanite mineral selected from andalusite, kyanite, and sillimanite, and 3-20 mass% of a clay. Among the mullite raw material, the corundum-containing raw material, andalusite, kyanite, and/or sillimanite, a raw material having a grain size of 0.2 mm or under is 5-20 mass%. By using the above-mentioned refractory raw material compound, the method for production of a checker brick of a known shape for an air heating furnace, as well as a thin wall checker brick having improved heat exchange efficiency, such as a checker brick having wall thickness T of 10 to less than 15 mm and the number of pores of approximately 7-37, is provided.SELECTED DRAWING: Figure 1
【課題】成形時の亀裂が発生することなく、しかも製品の強度が十分な熱風炉用チェッカーれんがの製造方法の提供。【解決手段】ムライト原料１０〜５０質量％、コランダム含有原料２０〜６０質量％、シリマナイト族鉱物としてアンダルサイト、カイアナイト、及びシリマナイトのうち１種又は２種以上１０〜３０質量％、及び粘土３〜２０質量％からなり、ムライト原料、コランダム含有原料、アンダルサイト、カイアナイト、及び／又はシリマナイトのうち粒径０．２ｍｍ以下の原料が５〜２０質量％である耐火原料配合物を混練後、成形し、乾燥、焼成する。以上の構成を有する耐火原料配合物により、熱風炉で使用されている公知形状のチェッカーれんがのほか、より熱交換効率に優れる薄壁のチェッカーれんが、例えば壁の厚みＴが１０〜１５ｍｍ未満で、孔の数が７〜３７個程度のチェッカーれんがを製造する方法。【選択図】図１
METHOD FOR PRODUCTION OF CHECKER BRICK FOR AIR HEATING FURNACE
PROBLEM TO BE SOLVED: To provide a method for production of checker brick for an air heating furnace, free from cracking in molding and having sufficient strength of a product.SOLUTION: The method for production of a checker brick includes steps of kneading, molding, drying, and then firing of a refractory raw material compound comprising 10-50 mass% of a mullite raw material, 20-60 mass% of a corundum-containing raw material, 10-30 mass% of one or more of a sillimanite mineral selected from andalusite, kyanite, and sillimanite, and 3-20 mass% of a clay. Among the mullite raw material, the corundum-containing raw material, andalusite, kyanite, and/or sillimanite, a raw material having a grain size of 0.2 mm or under is 5-20 mass%. By using the above-mentioned refractory raw material compound, the method for production of a checker brick of a known shape for an air heating furnace, as well as a thin wall checker brick having improved heat exchange efficiency, such as a checker brick having wall thickness T of 10 to less than 15 mm and the number of pores of approximately 7-37, is provided.SELECTED DRAWING: Figure 1
【課題】成形時の亀裂が発生することなく、しかも製品の強度が十分な熱風炉用チェッカーれんがの製造方法の提供。【解決手段】ムライト原料１０〜５０質量％、コランダム含有原料２０〜６０質量％、シリマナイト族鉱物としてアンダルサイト、カイアナイト、及びシリマナイトのうち１種又は２種以上１０〜３０質量％、及び粘土３〜２０質量％からなり、ムライト原料、コランダム含有原料、アンダルサイト、カイアナイト、及び／又はシリマナイトのうち粒径０．２ｍｍ以下の原料が５〜２０質量％である耐火原料配合物を混練後、成形し、乾燥、焼成する。以上の構成を有する耐火原料配合物により、熱風炉で使用されている公知形状のチェッカーれんがのほか、より熱交換効率に優れる薄壁のチェッカーれんが、例えば壁の厚みＴが１０〜１５ｍｍ未満で、孔の数が７〜３７個程度のチェッカーれんがを製造する方法。【選択図】図１
METHOD FOR PRODUCTION OF CHECKER BRICK FOR AIR HEATING FURNACE
熱風炉用チェッカーれんがの製造方法
SAKAI HIROBUMI (author) / KODASHISEKI YOSHITAKA (author) / NAKAMURA HITOSHI (author) / TAMURA YOSHIHIRO (author)
2018-04-05
Patent
Electronic Resource
Japanese
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