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A platform for research: civil engineering, architecture and urbanism
Light hollow building block and preparation method thereof
The invention discloses a light hollow building block and a preparation method thereof. The preparation raw material is tailing slag obtained by re-sorting coal slime through sorting equipment. The main chemical components of the tailing slag are as follows: the content of SiO2 is 40-55%, the content of Al2O3 is 16-25%, the content of Fe2O3 is 1-5%, the content of CaO is 1-5%, and the balance is other elements in the components of the tailing slag; the ignition loss of the tailing slag is 4-10%, the plasticity index interval is 11-25, and the heat value interval is 1.25-2.5 MJ/kg; the tailingslag is sequentially subjected to the processes of drying, stirring, rolling homogenization, extrusion, cutting, air drying, kiln firing and cooling to obtain the hollow building block. And firing ina tunnel kiln is adopted in the kiln firing process. According to the invention, the hollow block is prepared by treating the coal slime, so that the waste utilization of the coal slime is realized.
本发明公开了一种轻质空心砌块及其制备方法，制备原料为煤泥经分选设备再次分选后的尾矿渣，尾矿渣主要化学成分包括：SiO含40～55％，AlO含16～25％，FeO含1～5％，CaO含1～5％，其余为尾矿渣成分里的其他元素，尾矿渣的烧失量为4～10％，塑性指数区间为11～25，热值区间为1.25～2.5MJ/kg；尾矿渣依次经过烘干、搅拌、碾压均化、挤出、切割、风干、入窑烧制以及冷却过程后获得空心砌块；入窑烧制过程采用隧道窑烧制。本发明利用煤泥经过处理后制备空心砌块，使煤泥实现废物利用。
Light hollow building block and preparation method thereof
The invention discloses a light hollow building block and a preparation method thereof. The preparation raw material is tailing slag obtained by re-sorting coal slime through sorting equipment. The main chemical components of the tailing slag are as follows: the content of SiO2 is 40-55%, the content of Al2O3 is 16-25%, the content of Fe2O3 is 1-5%, the content of CaO is 1-5%, and the balance is other elements in the components of the tailing slag; the ignition loss of the tailing slag is 4-10%, the plasticity index interval is 11-25, and the heat value interval is 1.25-2.5 MJ/kg; the tailingslag is sequentially subjected to the processes of drying, stirring, rolling homogenization, extrusion, cutting, air drying, kiln firing and cooling to obtain the hollow building block. And firing ina tunnel kiln is adopted in the kiln firing process. According to the invention, the hollow block is prepared by treating the coal slime, so that the waste utilization of the coal slime is realized.
本发明公开了一种轻质空心砌块及其制备方法，制备原料为煤泥经分选设备再次分选后的尾矿渣，尾矿渣主要化学成分包括：SiO含40～55％，AlO含16～25％，FeO含1～5％，CaO含1～5％，其余为尾矿渣成分里的其他元素，尾矿渣的烧失量为4～10％，塑性指数区间为11～25，热值区间为1.25～2.5MJ/kg；尾矿渣依次经过烘干、搅拌、碾压均化、挤出、切割、风干、入窑烧制以及冷却过程后获得空心砌块；入窑烧制过程采用隧道窑烧制。本发明利用煤泥经过处理后制备空心砌块，使煤泥实现废物利用。
Light hollow building block and preparation method thereof
一种轻质空心砌块及其制备方法
ZHANG YANBIN (author)
2020-08-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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