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A platform for research: civil engineering, architecture and urbanism
REFRACTORY BRICK AND METHOD FOR PRODUCING THE SAME
PROBLEM TO BE SOLVED: To provide a refractory brick that contains a significant amount of alumina-silica-silicon carbide-carbon-based refractory waste, and has excellent durability which is not inferior to that of a refractory brick made by using a virgin material only.SOLUTION: This invention relates to a brick consisting of an alumina-silica-silicon carbide-carbon-based refractory product, wherein the brick comprises a refractory waste (x) having a particle diameter of 8 mm or lower, the refractory waste (x) accounting for 17-90 mass% of the whole refractory product material, and the followings are satisfied: (1) the refractory waste having a particle diameter of more than 2.8 mm, among the refractory waste (x), accounts for 10 mass% or more of the total refractory product material; (2) a content ratio (a mass ratio) between the refractory waste having the particle diameter of more than 2.8 mm and a refractory waste having a particle diameter of 2.8 mm or lower but more than 1 mm, among the refractory waste (x) is 2:10 to 20:10; (3) a content ratio (a mass ratio) between the refractory waste having the particle diameter of 2.8 mm or lower but more than 1 mm and a refractory waste having a particle diameter of 1 mm or lower, among the refractory waste (x), is 10:2 to 10:20; and (4) the amount of free carbons, in the whole refractory product material, is 19 mass% or lower.SELECTED DRAWING: None
【課題】アルミナ・シリカ・炭化珪素・カーボン質の耐火物屑を相当量含有する耐火物煉瓦であって、バージン原料のみを使用した耐火物煉瓦に劣らない優れた耐用性を有する耐火物煉瓦を提供する。【解決手段】アルミナ・シリカ・炭化珪素・カーボン質の耐火物からなる煉瓦において、粒径８ｍｍ以下の耐火物屑（x）を、全耐火物原料中での割合で１７質量％以上９０質量％以下含有するとともに、（1）耐火物屑（x）のうちの粒径２．８ｍｍ超の耐火物屑の全耐火物原料中での割合が１０質量％以上、（2）耐火物屑（x）のうち、粒径２．８ｍｍ超の耐火物屑と粒径２．８ｍｍ以下１ｍｍ超の耐火物屑の含有比率（質量比）が２：１０〜２０：１０、（3）耐火物屑（x）のうち、粒径２．８ｍｍ以下１ｍｍ超の耐火物屑と粒径１ｍｍ以下の耐火物屑の含有比率（質量比）が１０：２〜１０：２０、（4）全耐火物原料中での遊離炭素量が１９質量％以下、の条件を満足する。【選択図】なし
REFRACTORY BRICK AND METHOD FOR PRODUCING THE SAME
PROBLEM TO BE SOLVED: To provide a refractory brick that contains a significant amount of alumina-silica-silicon carbide-carbon-based refractory waste, and has excellent durability which is not inferior to that of a refractory brick made by using a virgin material only.SOLUTION: This invention relates to a brick consisting of an alumina-silica-silicon carbide-carbon-based refractory product, wherein the brick comprises a refractory waste (x) having a particle diameter of 8 mm or lower, the refractory waste (x) accounting for 17-90 mass% of the whole refractory product material, and the followings are satisfied: (1) the refractory waste having a particle diameter of more than 2.8 mm, among the refractory waste (x), accounts for 10 mass% or more of the total refractory product material; (2) a content ratio (a mass ratio) between the refractory waste having the particle diameter of more than 2.8 mm and a refractory waste having a particle diameter of 2.8 mm or lower but more than 1 mm, among the refractory waste (x) is 2:10 to 20:10; (3) a content ratio (a mass ratio) between the refractory waste having the particle diameter of 2.8 mm or lower but more than 1 mm and a refractory waste having a particle diameter of 1 mm or lower, among the refractory waste (x), is 10:2 to 10:20; and (4) the amount of free carbons, in the whole refractory product material, is 19 mass% or lower.SELECTED DRAWING: None
【課題】アルミナ・シリカ・炭化珪素・カーボン質の耐火物屑を相当量含有する耐火物煉瓦であって、バージン原料のみを使用した耐火物煉瓦に劣らない優れた耐用性を有する耐火物煉瓦を提供する。【解決手段】アルミナ・シリカ・炭化珪素・カーボン質の耐火物からなる煉瓦において、粒径８ｍｍ以下の耐火物屑（x）を、全耐火物原料中での割合で１７質量％以上９０質量％以下含有するとともに、（1）耐火物屑（x）のうちの粒径２．８ｍｍ超の耐火物屑の全耐火物原料中での割合が１０質量％以上、（2）耐火物屑（x）のうち、粒径２．８ｍｍ超の耐火物屑と粒径２．８ｍｍ以下１ｍｍ超の耐火物屑の含有比率（質量比）が２：１０〜２０：１０、（3）耐火物屑（x）のうち、粒径２．８ｍｍ以下１ｍｍ超の耐火物屑と粒径１ｍｍ以下の耐火物屑の含有比率（質量比）が１０：２〜１０：２０、（4）全耐火物原料中での遊離炭素量が１９質量％以下、の条件を満足する。【選択図】なし
REFRACTORY BRICK AND METHOD FOR PRODUCING THE SAME
耐火物煉瓦および耐火物煉瓦の製造方法
YOSHIDA KEISUKE (author) / MATSUNAGA HISAHIRO (author) / TORIGOE ATSUSHI (author) / TOMITANI NAOSHI (author)
2018-04-19
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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