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Fissure formation in coke. 3: Coke size distribution and statistical analysis

机译:焦炭中形成裂缝。 3:焦炭粒度分布及统计分析

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摘要

A model of coke stabilization, based on a fundamental model of fissuring during carbonisation is used to demonstrate the applicability of the fissuring model to actual coke size distributions. The results indicate that the degree of stabilization is important in determining the size distribution. A modified form of the Weibull distribution is shown to provide a better representation of the whole coke size distribution compared to the Rosin-Rammler distribution, which is generally only fitted to the lump coke. A statistical analysis of a large number of experiments in a pilot scale coke oven shows reasonably good prediction of the coke mean size, based on parameters related to blend rank, amount of low rank coal, fluidity and ash. However, the prediction of measures of the spread of the size distribution is more problematic. The fissuring model, the size distribution representation and the statistical analysis together provide a comprehensive capability for understanding and predicting the mean size and distribution of coke lumps produced during carbonisation.
机译:基于碳化过程中裂变的基本模型的焦炭稳定化模型用于证明裂变模型对实际焦炭粒度分布的适用性。结果表明,稳定度对于确定尺寸分布很重要。与通常只适合块状焦炭的Rosin-Rammler分布相比,改进的Weibull分布形式可以更好地表示整个焦炭粒度分布。在中试规模的焦炉中进行的大量实验的统计分析表明,基于与混合等级,低等级煤量,流动性和灰分有关的参数,可以很好地预测焦炭的平均粒径。然而,尺寸分布的扩展的度量的预测更加成问题。裂隙模型,尺寸分布表示和统计分析共同提供了理解和预测碳化过程中产生的焦块平均尺寸和分布的综合能力。

著录项

  • 来源
    《Fuel》 |2010年第7期|p.1675-1689|共15页
  • 作者单位

    CSIRO, Mathematical and Information Sciences, Australia;

    rnCSIRO, Mathematical and Information Sciences, Australia;

    BHP Billiton, Newcastle Technology Centre, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    coke; fissures; lump size;

    机译:可乐;裂缝团块尺寸;

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