Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Electric smelting calcium dialuminate cement and preparation method thereof
The invention discloses electric smelting calcium dialuminate cement and a preparation method thereof, and aims to solve the technical problem that existing calcium aluminate cement is insufficient in high temperature resistance. The electric smelting calcium dialuminate cement is hydraulic calcium aluminate cement which is prepared by melting and smelting a mixture of alumina powder and quick lime in an electric arc furnace with the voltage of 135-145KV and the current of 5000-5500A, the mass percent of alumina is 75-80%, the mass percent of calcium oxide is 20-25%, and the mass ratio of calcium dialuminate to monocalcium aluminate is (1.2-3): 1. The obtained fused calcium dialuminate cement has the advantages of high alumina content, few impurities, high refractoriness (more than 1700 DEG C), wear resistance, stripping resistance and strong reducing medium erosion resistance, and is a high-quality binding agent for preparing amorphous refractory materials; the electric smelting calcium dialuminate cement is stable in quality, fast and sufficient in hydration, good in flowing property, stable in setting time and excellent in early strength, and can be widely applied to furnace equipment in the industries of refractory materials, metallurgy, petrifaction, building materials and the like.
本发明申请公开了一种电熔二铝酸钙水泥及其制备方法，旨在解决现有铝酸钙水泥耐高温性能不足的技术问题。该电熔二铝酸钙水泥是由氧化铝粉和生石灰的混合物置于电压为135～145KV、电流为5000～5500A的电弧炉中熔融冶炼而成的氧化铝质量百分比含量为75～80%、氧化钙质量百分比含量为20～25%的水硬性铝酸钙水泥，且所含二铝酸钙、铝酸一钙的质量比为1.2～3：1。所得电熔二铝酸钙水泥中氧化铝含量高，杂质少，耐火度高(＞1700℃)，耐磨、抗剥落、抗还原性介质侵蚀能力强，是配置不定型耐火材料的优质结合剂；该电熔二铝酸钙水泥质量稳定、水化快且充分，具有良好的流动性能、稳定的凝结时间、优良的早期强度，可广泛应用于耐火材料、冶金、石化、建材等行业炉窑设备。
Electric smelting calcium dialuminate cement and preparation method thereof
The invention discloses electric smelting calcium dialuminate cement and a preparation method thereof, and aims to solve the technical problem that existing calcium aluminate cement is insufficient in high temperature resistance. The electric smelting calcium dialuminate cement is hydraulic calcium aluminate cement which is prepared by melting and smelting a mixture of alumina powder and quick lime in an electric arc furnace with the voltage of 135-145KV and the current of 5000-5500A, the mass percent of alumina is 75-80%, the mass percent of calcium oxide is 20-25%, and the mass ratio of calcium dialuminate to monocalcium aluminate is (1.2-3): 1. The obtained fused calcium dialuminate cement has the advantages of high alumina content, few impurities, high refractoriness (more than 1700 DEG C), wear resistance, stripping resistance and strong reducing medium erosion resistance, and is a high-quality binding agent for preparing amorphous refractory materials; the electric smelting calcium dialuminate cement is stable in quality, fast and sufficient in hydration, good in flowing property, stable in setting time and excellent in early strength, and can be widely applied to furnace equipment in the industries of refractory materials, metallurgy, petrifaction, building materials and the like.
本发明申请公开了一种电熔二铝酸钙水泥及其制备方法，旨在解决现有铝酸钙水泥耐高温性能不足的技术问题。该电熔二铝酸钙水泥是由氧化铝粉和生石灰的混合物置于电压为135～145KV、电流为5000～5500A的电弧炉中熔融冶炼而成的氧化铝质量百分比含量为75～80%、氧化钙质量百分比含量为20～25%的水硬性铝酸钙水泥，且所含二铝酸钙、铝酸一钙的质量比为1.2～3：1。所得电熔二铝酸钙水泥中氧化铝含量高，杂质少，耐火度高(＞1700℃)，耐磨、抗剥落、抗还原性介质侵蚀能力强，是配置不定型耐火材料的优质结合剂；该电熔二铝酸钙水泥质量稳定、水化快且充分，具有良好的流动性能、稳定的凝结时间、优良的早期强度，可广泛应用于耐火材料、冶金、石化、建材等行业炉窑设备。
Electric smelting calcium dialuminate cement and preparation method thereof
电熔二铝酸钙水泥及其制备方法
WANG PING (Autor:in) / FENG GANGJUN (Autor:in)
26.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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