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Foaming ceramic based on phosphate tailings and coal gangue and preparation method thereof
The invention relates to foamed ceramic based on phosphate tailings and coal gangue and a preparation method of the foamed ceramic. According to the technical scheme, 60-80 wt% of phosphate tailings and 20-40 wt% of coal gangue serve as raw materials and are mixed and stirred, 3-5 wt% of a binding agent and 5-9 wt% of water are added, stirring, mechanical pressing and drying are conducted, and a green body is prepared; and heating the green body to 600-650 DEG C at a rate of 5-10 DEG C/min, then heating to 900-950 DEG C at a rate of 3-4 DEG C/min, then heating to 1150-1200 DEG C at a rate of 1-2 DEG C/min, carrying out heat preservation for 30-90 minutes, and carrying out furnace cooling to room temperature, thereby obtaining the foamed ceramic based on the phosphate tailings and the coal gangue. The method is high in recycling rate, low in cost and simple in process, and the prepared product is low in volume density, high in compressive strength, small in heat conductivity coefficient and high in acid resistance.
本发明涉及一种基于磷尾矿和煤矸石的发泡陶瓷及其制备方法。其技术方案是：以60～80wt％的磷尾矿和20～40wt％的煤矸石为原料，混合，搅拌，外加3～5wt％的结合剂和5～9wt％的水，搅拌，机压成型，烘干，制得坯体；将所述坯体以5～10℃/min的速率升温至600～650℃，再以3～4℃/min的速率升温至900～950℃，然后以1～2℃/min的速率升温至1150℃～1200℃，保温30～90min，随炉冷却至室温，制得基于磷尾矿和煤矸石的发泡陶瓷。本发明资源化率高、成本低和工艺简单，所制制品体积密度低、抗压强度高、导热系数小和耐酸性强。
Foaming ceramic based on phosphate tailings and coal gangue and preparation method thereof
The invention relates to foamed ceramic based on phosphate tailings and coal gangue and a preparation method of the foamed ceramic. According to the technical scheme, 60-80 wt% of phosphate tailings and 20-40 wt% of coal gangue serve as raw materials and are mixed and stirred, 3-5 wt% of a binding agent and 5-9 wt% of water are added, stirring, mechanical pressing and drying are conducted, and a green body is prepared; and heating the green body to 600-650 DEG C at a rate of 5-10 DEG C/min, then heating to 900-950 DEG C at a rate of 3-4 DEG C/min, then heating to 1150-1200 DEG C at a rate of 1-2 DEG C/min, carrying out heat preservation for 30-90 minutes, and carrying out furnace cooling to room temperature, thereby obtaining the foamed ceramic based on the phosphate tailings and the coal gangue. The method is high in recycling rate, low in cost and simple in process, and the prepared product is low in volume density, high in compressive strength, small in heat conductivity coefficient and high in acid resistance.
本发明涉及一种基于磷尾矿和煤矸石的发泡陶瓷及其制备方法。其技术方案是：以60～80wt％的磷尾矿和20～40wt％的煤矸石为原料，混合，搅拌，外加3～5wt％的结合剂和5～9wt％的水，搅拌，机压成型，烘干，制得坯体；将所述坯体以5～10℃/min的速率升温至600～650℃，再以3～4℃/min的速率升温至900～950℃，然后以1～2℃/min的速率升温至1150℃～1200℃，保温30～90min，随炉冷却至室温，制得基于磷尾矿和煤矸石的发泡陶瓷。本发明资源化率高、成本低和工艺简单，所制制品体积密度低、抗压强度高、导热系数小和耐酸性强。
Foaming ceramic based on phosphate tailings and coal gangue and preparation method thereof
一种基于磷尾矿和煤矸石的发泡陶瓷及其制备方法
HU NANYAN (author) / FU FANGHUI (author) / YE YICHENG (author) / KE LIHUA (author) / ZHANG GUANGQUAN (author) / WANG QIHU (author) / YAO NAN (author) / LUO BINYU (author)
2022-04-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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