Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature refractory brick taking low-grade magnesite tailings as aggregate
The invention relates to a high-temperature refractory brick taking low-grade magnesite tailings as aggregate, which is characterized by comprising the following components in percentage by weight: 60-65wt% of low-grade magnesite tailings; 15 to 25 weight percent of bentonite; 5-10 wt% of magnesium oxide; 1-3 wt% of magnesium chloride; 5.5 to 10 wt% of a modifier; and 4-6 wt% of a binding agent. The high-temperature refractory brick blank has the beneficial effects that the low-grade magnesite tailings which are relatively high in SiO2 content and cannot be used for preparing magnesium materials are used as main materials, and a certain amount of bentonite is added to serve as aggregate, so that the high-temperature refractory brick blank is complete in binding phase, small in apparent porosity and about 14-15%, high in load deformation temperature and about 1700-1720 DEG C, and high in strength and toughness; the prepared magnesite tailings have excellent chemical mineral structures, physical properties and thermal shock resistance, so that mineral resources are saved, the problem of discharge of the magnesite tailings after mineral separation is solved, and the magnesite tailings are energy-saving and environment-friendly.
本发明涉及一种以低品位菱镁矿尾矿为骨料的高温耐火砖，其特征在于，按重量百分比包括如下组分：低品位菱镁矿尾矿60～65wt％；膨润土15～25wt％；氧化镁5～10wt％；氯化镁1～3wt％；改性剂5.5～10wt％；结合剂4～6wt％。其有益效果是：本发明，以SiO2含量较高、不能用于制备镁质材料的低品位菱镁矿尾矿为主要材料并添加一定量的膨润土作为骨料的高温耐火砖坯料，结合相完整，显气孔率小，约为14～15％，荷重变形温度高，约为1700～1720℃，具有优良的化学矿物结构、物理性能和热震稳定性，既节约了矿产资源，又解决了选矿后菱镁矿尾矿的排放问题，节能环保。
High-temperature refractory brick taking low-grade magnesite tailings as aggregate
The invention relates to a high-temperature refractory brick taking low-grade magnesite tailings as aggregate, which is characterized by comprising the following components in percentage by weight: 60-65wt% of low-grade magnesite tailings; 15 to 25 weight percent of bentonite; 5-10 wt% of magnesium oxide; 1-3 wt% of magnesium chloride; 5.5 to 10 wt% of a modifier; and 4-6 wt% of a binding agent. The high-temperature refractory brick blank has the beneficial effects that the low-grade magnesite tailings which are relatively high in SiO2 content and cannot be used for preparing magnesium materials are used as main materials, and a certain amount of bentonite is added to serve as aggregate, so that the high-temperature refractory brick blank is complete in binding phase, small in apparent porosity and about 14-15%, high in load deformation temperature and about 1700-1720 DEG C, and high in strength and toughness; the prepared magnesite tailings have excellent chemical mineral structures, physical properties and thermal shock resistance, so that mineral resources are saved, the problem of discharge of the magnesite tailings after mineral separation is solved, and the magnesite tailings are energy-saving and environment-friendly.
本发明涉及一种以低品位菱镁矿尾矿为骨料的高温耐火砖，其特征在于，按重量百分比包括如下组分：低品位菱镁矿尾矿60～65wt％；膨润土15～25wt％；氧化镁5～10wt％；氯化镁1～3wt％；改性剂5.5～10wt％；结合剂4～6wt％。其有益效果是：本发明，以SiO2含量较高、不能用于制备镁质材料的低品位菱镁矿尾矿为主要材料并添加一定量的膨润土作为骨料的高温耐火砖坯料，结合相完整，显气孔率小，约为14～15％，荷重变形温度高，约为1700～1720℃，具有优良的化学矿物结构、物理性能和热震稳定性，既节约了矿产资源，又解决了选矿后菱镁矿尾矿的排放问题，节能环保。
High-temperature refractory brick taking low-grade magnesite tailings as aggregate
一种以低品位菱镁矿尾矿为骨料的高温耐火砖
LI CHANGJIANG (Autor:in) / ZHANG YIXIAN (Autor:in) / ZHAO XIANHUA (Autor:in) / JIN ZHAO (Autor:in) / MA JIALIANG (Autor:in) / TIAN LIANG (Autor:in)
03.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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