Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite checker brick for large coke oven and preparation method of composite checker brick
The invention provides a composite checker brick for a large coke oven and a preparation method of the composite checker brick, and belongs to the technical field of coke oven checker bricks. The composite checker brick is prepared by firing a composite semi-finished product blank in a high-temperature oxidizing atmosphere or a high-temperature nitrogen atmosphere; the composite semi-finished product blank comprises a matrix layer, a corundum mullite middle layer and a working layer; and the matrix layer adopts a clay matrix or a low-aluminum matrix or a semi-silicon matrix, and the working layer adopts a non-oxide working layer or a fused quartz working layer. The composite semi-finished product blank adopts a three-layer structure comprising the matrix layer, the corundum mullite middle layer and the working layer, and is fired in the high-temperature oxidizing atmosphere or the high-temperature nitrogen atmosphere, a needle-like mullite bonding layer is formed between the matrix layer and the corundum mullite middle layer, and a needle-like mullite bonding layer or a columnar Sialon bonding layer is formed between the corundum mullite middle layer and the working layer, so that the composite checker brick has good alkali permeation resistance, thermal shock resistance and overall strength, and can well adapt to the change of rapid cooling and rapid heating in the coke oven.
本发明提供一种大型焦炉用复合格子砖及其制备方法，属于焦炉格子砖技术领域，复合格子砖由复合半成品坯体通过高温氧化气氛烧成或高温氮气气氛下烧成制得，复合半成品坯体包括基体层、刚玉莫来石中间层和工作层，基体层采用粘土质基体或低铝质基体或半硅质基体，工作层采用非氧化物工作层或熔融石英工作层。本发明中复合半成品坯体采用基体层、刚玉莫来石中间层和工作层的三层结构，并通过高温氧化气氛烧成或高温氮气气氛下烧成，在基体层与刚玉莫来石中间层之间形成针状莫来石结合层，在刚玉莫来石中间层与工作层之间形成状莫来石结合层或柱状Sialon结合层，具有良好的抗碱性渗透、抗热震性能和整体强度，能够很好的适应焦炉内的急冷急热的变化。
Composite checker brick for large coke oven and preparation method of composite checker brick
The invention provides a composite checker brick for a large coke oven and a preparation method of the composite checker brick, and belongs to the technical field of coke oven checker bricks. The composite checker brick is prepared by firing a composite semi-finished product blank in a high-temperature oxidizing atmosphere or a high-temperature nitrogen atmosphere; the composite semi-finished product blank comprises a matrix layer, a corundum mullite middle layer and a working layer; and the matrix layer adopts a clay matrix or a low-aluminum matrix or a semi-silicon matrix, and the working layer adopts a non-oxide working layer or a fused quartz working layer. The composite semi-finished product blank adopts a three-layer structure comprising the matrix layer, the corundum mullite middle layer and the working layer, and is fired in the high-temperature oxidizing atmosphere or the high-temperature nitrogen atmosphere, a needle-like mullite bonding layer is formed between the matrix layer and the corundum mullite middle layer, and a needle-like mullite bonding layer or a columnar Sialon bonding layer is formed between the corundum mullite middle layer and the working layer, so that the composite checker brick has good alkali permeation resistance, thermal shock resistance and overall strength, and can well adapt to the change of rapid cooling and rapid heating in the coke oven.
本发明提供一种大型焦炉用复合格子砖及其制备方法，属于焦炉格子砖技术领域，复合格子砖由复合半成品坯体通过高温氧化气氛烧成或高温氮气气氛下烧成制得，复合半成品坯体包括基体层、刚玉莫来石中间层和工作层，基体层采用粘土质基体或低铝质基体或半硅质基体，工作层采用非氧化物工作层或熔融石英工作层。本发明中复合半成品坯体采用基体层、刚玉莫来石中间层和工作层的三层结构，并通过高温氧化气氛烧成或高温氮气气氛下烧成，在基体层与刚玉莫来石中间层之间形成针状莫来石结合层，在刚玉莫来石中间层与工作层之间形成状莫来石结合层或柱状Sialon结合层，具有良好的抗碱性渗透、抗热震性能和整体强度，能够很好的适应焦炉内的急冷急热的变化。
Composite checker brick for large coke oven and preparation method of composite checker brick
一种大型焦炉用复合格子砖及其制备方法
PENG NAI (Autor:in) / CHEN SHUFENG (Autor:in) / PENG PENG (Autor:in) / SONG YUNFEI (Autor:in) / HU SHUSEN (Autor:in)
17.12.2021
Patent
Elektronische Ressource
Chinesisch
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