不连续加热对水泥熟料性能的影响  

Effect of discontinuous heating on properties of cement clinker

作　　者：王泽琳 边茹茹 王艳[2] 王亚丽[1] 崔素萍[1] WANG Zelin(Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学,北京100124 [2]中国科学院电工研究所,北京100190

出　　处：《水泥》2025年第3期1-8,共8页Cement

基　　金：国家重点研发计划项目(2023YFB4204303)。

摘　　要：近年来利用太阳能光热发电实现能源脱碳方面的研究取得重要进展,以太阳能煅烧水泥熟料的研究也已开展,但是水泥熟料的煅烧需要连续加热,而太阳能受天气影响较大,偶有云遮等情况会造成加热中断。为了明确太阳能中断供给对水泥熟料性能及烧成过程的影响,本研究利用实验室高温马弗炉进行不连续加热,模拟短时间云遮等太阳能供给不足对煅烧水泥熟料的影响。结果表明,短时间中断加热烧成的熟料比未中断获得的熟料性能更加优异,尤其是中断温度在固相反应阶段时效果最为明显,熟料XRD定量分析证明中断后再烧成促进了C3S的生长和发育,C3S含量最高提升25.13%,晶粒形态和分布得到改善,水化产物增加,水泥28 d强度最高提升了16.1%。In recent years,research on the use of solar thermal power generation for energy decarbonization has made significant progress.Research on solar-driven calcination of cement clinker has also been initiated.However,the calcination of cement clinker requires continuous heating,and solar energy supply is highly influenced by weather.Intermittent solar energy interruptions,such as those caused by cloud cover,can disrupt the heating process.To investigate the impact of shortterm solar interruptions on the performance and calcination process of cement clinker,the study used a high-temperature muffle furnace to simulate intermittent heating,mimicking the effects of temporary solar energy shortages.The results indicate that the performance of clinker fired by short-term interruption of heating is better than that of uninterrupted clinker.In particular,the interruption temperature has the most obvious effect in the solid-phase reaction stage.Quantitative XRD analysis of the clinker confirms that intermittent heating followed by resumed calcination promotes the formation and development of C3S,with its content increasing by up to 25.13%.Additionally,the morphology and distribution of the C3S crystals were improved,hydration products were enhanced,and the 28-day compressive strength of the cement increased by up to 16.1%.

关 键 词：硅酸盐水泥 不连续加热 熟料煅烧 太阳能利用 

分 类 号：TQ172.12[化学工程—水泥工业] TU525[化学工程—硅酸盐工业]