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现代化的水泥生产,为了有效地控制生料的石灰饱和系数KH值、以及h值、P值,是用多道的X射线荧光光谱仪对出磨生料作全分析,将分析结果输入配料电脑,自动进行配方调整。因该仪器价格昂贵,还要靠进口,国内多数水泥厂均不敢问津。故生料中的一些元素测定仍采用光度法和容量分析法。特别是钙的测定,目前只能用EDTA法。该法分析时间较长,影响分析速度,以至追踪反馈不及时,造成KH值波动大,严重地影响烧成工艺以及质量的稳定性。笔者原来采用光度法快速测定生料中的硅、铁、铝、镁,再取出部分余液络合滴定钙,使用分析时间大为缩短,但是光度法及容量法同时并用,手续仍
Modern cement production, in order to effectively control the raw material lime saturation coefficient KH value, and h value, P value is the use of multi-channel X-ray fluorescence spectrometer for the full analysis of the mill raw materials, the analysis results input ingredients computer, Automatic recipe adjustment. Because of the expensive instruments, but also by imports, the majority of domestic cement plants are not interested. Therefore, some of the raw materials in the determination of the spectrophotometric method is still used and capacity analysis. In particular, the determination of calcium, currently only EDTA method. The longer analysis time of the method affects the analysis speed and the tracking feedback is not timely, resulting in large fluctuation of KH value and seriously affecting the stability of the baking process and the quality. The author originally used photometric method for rapid determination of raw materials, silicon, iron, aluminum, magnesium, and then remove some of the remaining complex complex titration of calcium, the use of analysis time is greatly reduced, but the photometric method and volumetric method used simultaneously, the procedure is still