Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength Cr2O3 reinforced 3Al2O3. 2SiO2 composite refractory material and preparation method thereof
The invention provides a high-strength Cr2O3 reinforced 3Al2O3. 2SiO2 composite refractory material and a preparation method of the high-strength Cr2O3 reinforced 3Al2O3. 2SiO2 composite refractory material. The high-strength Cr2O3 reinforced 3Al2O3. 2SiO2 composite refractory material is formed and calcined by taking aluminum chromium slag generated by smelting metal chromium through an aluminothermic method as a main raw material and adding a certain amount of chromium trioxide, a small amount of MgO sintering aid and a ZrO2 reinforcing agent, and the material is mainly composed of Mg (Al, Cr) 2O4 spinel, a (Al, Cr) 2O3 solid solution and ZrO2. By increasing the content of MgO, the composite refractory has the characteristics of excellent mechanical property, good thermal stability, good slag corrosion resistance, high strength, long service life and high energy-saving efficiency. The method can effectively improve the performance and slag corrosion resistance of the traditional chrome corundum refractory, and has the characteristics of short flow, low energy consumption and simple production process.
本发明提供一种高强度的Cr2O3增强3Al2O3·2SiO2复合耐火材料及其制备方法。利用铝热法冶炼金属铬产生的铝铬渣是作为主原料，配加一定量的三氧化铬和少量的MgO烧结助烧剂和ZrO2增强剂后成型并煅烧出一种高强度的Cr2O3增强3Al2O3·2SiO2复合耐火材料，该材料主要由主要是由Mg(Al,Cr)2O4尖晶石、(Al,Cr)2O3固溶体和ZrO2构成。增大MgO含量可以显著提高复合耐材具有力学性能优异，热稳定性好、抗渣侵蚀能力好、强度高、寿命长、节能效率高的特点。该方法能够有效提高传统铬刚玉耐材的性能和抗渣侵蚀性能，具有流程短、能耗低、生产工艺简单的特点。
High-strength Cr2O3 reinforced 3Al2O3. 2SiO2 composite refractory material and preparation method thereof
The invention provides a high-strength Cr2O3 reinforced 3Al2O3. 2SiO2 composite refractory material and a preparation method of the high-strength Cr2O3 reinforced 3Al2O3. 2SiO2 composite refractory material. The high-strength Cr2O3 reinforced 3Al2O3. 2SiO2 composite refractory material is formed and calcined by taking aluminum chromium slag generated by smelting metal chromium through an aluminothermic method as a main raw material and adding a certain amount of chromium trioxide, a small amount of MgO sintering aid and a ZrO2 reinforcing agent, and the material is mainly composed of Mg (Al, Cr) 2O4 spinel, a (Al, Cr) 2O3 solid solution and ZrO2. By increasing the content of MgO, the composite refractory has the characteristics of excellent mechanical property, good thermal stability, good slag corrosion resistance, high strength, long service life and high energy-saving efficiency. The method can effectively improve the performance and slag corrosion resistance of the traditional chrome corundum refractory, and has the characteristics of short flow, low energy consumption and simple production process.
本发明提供一种高强度的Cr2O3增强3Al2O3·2SiO2复合耐火材料及其制备方法。利用铝热法冶炼金属铬产生的铝铬渣是作为主原料，配加一定量的三氧化铬和少量的MgO烧结助烧剂和ZrO2增强剂后成型并煅烧出一种高强度的Cr2O3增强3Al2O3·2SiO2复合耐火材料，该材料主要由主要是由Mg(Al,Cr)2O4尖晶石、(Al,Cr)2O3固溶体和ZrO2构成。增大MgO含量可以显著提高复合耐材具有力学性能优异，热稳定性好、抗渣侵蚀能力好、强度高、寿命长、节能效率高的特点。该方法能够有效提高传统铬刚玉耐材的性能和抗渣侵蚀性能，具有流程短、能耗低、生产工艺简单的特点。
High-strength Cr2O3 reinforced 3Al2O3. 2SiO2 composite refractory material and preparation method thereof
一种高强度的Cr2O3增强3Al2O3·2SiO2复合耐火材料及其制备方法
ZHANG YINGYI (Autor:in) / CUI KUNKUN (Autor:in) / WANG HONG (Autor:in) / SHEN XIN (Autor:in) / MAO HAOBO (Autor:in)
08.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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