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通过差热失重测试、化学分析、热红联用测试等手段研究了多个水泥熟料样品中的残留的碳元素,总结了近期水泥熟料中残碳的检测研究,找到了一种可行的、准确的残碳检测方法,分析了不同烧失量熟料中的碳含量,区分了有机碳和无机碳存在形态。结果表明,熟料随着温度的升高有明显的吸热而无明显的放热,说明存在有机碳的可能性较小;微量碳元素的测试结果显示熟料中总碳含量较少,其数量级为0.01%~0.1%,有机碳更少,其数量级为0.01%,影响熟料烧成热耗在<4.18k J/kg范围内;研究还显示熟料的烧失量与碳元素的含量不存在正比关系。
The residual carbon in many cement clinker samples was studied by means of differential thermal weightlessness test, chemical analysis and thermal red combination test, and the detection of residual carbon in cement clinker was summarized. A feasible , Accurate method for determination of residual carbon, analysis of carbon content in clinker with different loss, the existence of organic carbon and inorganic carbon morphology. The results showed that clinker had obvious endotherm with no obvious exotherm with the increase of temperature, indicating that the possibility of organic carbon was small. The test results of trace carbon showed that the total carbon content of clinker was less, The order of magnitude is 0.01% ~ 0.1%, organic carbon is less, and its order of magnitude is 0.01%, affecting the heat loss of clinker burning in the range <4.18k J / kg. The study also shows that the loss on ignition and the content of carbon There is no direct relationship.