Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Phosphorus tailing-coal gangue based lightweight thermal insulation material and preparation method thereof
The invention relates to a phosphate tailing-coal gangue based lightweight thermal insulation material and a preparation method thereof. According to the technical scheme, 50-80 wt% of phosphate tailings and 20-50 wt% of coal gangue serve as raw materials and are evenly mixed, water accounting for 6-32 wt% of the raw materials is added, stirring is conducted, and a mixture is obtained; ageing the mixture for 12-24 hours, casting and molding, naturally drying, and drying at 90-110 DEG C for 24-48 hours to obtain a pretreated material; and heating the pretreated material from room temperature to 360-400 DEG C at a rate of 4-6 DEG C/min, then heating the pretreated material to 670-750 DEG C at a rate of 2-4 DEG C/min, then heating the pretreated material to 1100-1500 DEG C at a rate of 10-12 DEG C/min, carrying out heat preservation for 3-7 h, and carrying out furnace cooling to obtain the phosphorus tailing-coal gangue based lightweight thermal insulation material. The preparation method has the characteristics of high reutilization rate, low production cost and simple process, and the prepared phosphate tailing-coal gangue-based lightweight thermal insulation material is high in compression strength, high in porosity and low in heat conductivity coefficient.
一种磷尾矿‑煤矸石基轻质隔热材料及其制备方法。其技术方案是：以50～80wt％的磷尾矿和20～50wt％的煤矸石为原料，混匀，外加所述原料6～32wt％的水，搅拌，即得混合料；将所述混合料困料12～24h，浇注成型，自然干燥，90～110℃条件下烘干24～48h，即得预处理料；将所述预处理料先以4～6℃/min的速率从室温升温至360～400℃，再以2～4℃/min的速率升温至670～750℃，然后以10～12℃/min的速率升温至1100～1500℃，保温3～7h，随炉冷却，制得磷尾矿‑煤矸石基轻质隔热材料。本发明具有再利用率高、生产成本低和工艺简单的特点，所制备的磷尾矿‑煤矸石基轻质隔热材料耐压强度高、气孔率高和导热系数低。
Phosphorus tailing-coal gangue based lightweight thermal insulation material and preparation method thereof
The invention relates to a phosphate tailing-coal gangue based lightweight thermal insulation material and a preparation method thereof. According to the technical scheme, 50-80 wt% of phosphate tailings and 20-50 wt% of coal gangue serve as raw materials and are evenly mixed, water accounting for 6-32 wt% of the raw materials is added, stirring is conducted, and a mixture is obtained; ageing the mixture for 12-24 hours, casting and molding, naturally drying, and drying at 90-110 DEG C for 24-48 hours to obtain a pretreated material; and heating the pretreated material from room temperature to 360-400 DEG C at a rate of 4-6 DEG C/min, then heating the pretreated material to 670-750 DEG C at a rate of 2-4 DEG C/min, then heating the pretreated material to 1100-1500 DEG C at a rate of 10-12 DEG C/min, carrying out heat preservation for 3-7 h, and carrying out furnace cooling to obtain the phosphorus tailing-coal gangue based lightweight thermal insulation material. The preparation method has the characteristics of high reutilization rate, low production cost and simple process, and the prepared phosphate tailing-coal gangue-based lightweight thermal insulation material is high in compression strength, high in porosity and low in heat conductivity coefficient.
一种磷尾矿‑煤矸石基轻质隔热材料及其制备方法。其技术方案是：以50～80wt％的磷尾矿和20～50wt％的煤矸石为原料，混匀，外加所述原料6～32wt％的水，搅拌，即得混合料；将所述混合料困料12～24h，浇注成型，自然干燥，90～110℃条件下烘干24～48h，即得预处理料；将所述预处理料先以4～6℃/min的速率从室温升温至360～400℃，再以2～4℃/min的速率升温至670～750℃，然后以10～12℃/min的速率升温至1100～1500℃，保温3～7h，随炉冷却，制得磷尾矿‑煤矸石基轻质隔热材料。本发明具有再利用率高、生产成本低和工艺简单的特点，所制备的磷尾矿‑煤矸石基轻质隔热材料耐压强度高、气孔率高和导热系数低。
Phosphorus tailing-coal gangue based lightweight thermal insulation material and preparation method thereof
一种磷尾矿-煤矸石基轻质隔热材料及其制备方法
YE YICHENG (Autor:in) / HUANG YANG (Autor:in) / HU NANYAN (Autor:in) / LUO BINYU (Autor:in) / KE LIHUA (Autor:in) / ZHANG GUANGQUAN (Autor:in) / WANG QIHU (Autor:in) / YAO NAN (Autor:in)
22.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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