【作者】 范程；

【导师】 王光辉；

【作者基本信息】 武汉科技大学 ， 化学工艺， 2008， 硕士

【摘要】 随着高炉的大型化和喷煤技术的应用,高炉对焦炭的质量提出了更高的要求。焦炉的大型化由于能够明显的改善焦炭的质量,所以成为焦化工业发展的方向之一。本论文在收集国内主要焦化厂现有炉型(炭化室高为2.8m、4.3m、5.5m、6m和7.63m)配合煤质量指标及其焦炭质量的生产数据的基础上,分析各种表征炉型条件、煤化度和黏结性对焦炭质量产生影响的参数,并分析它们之间的关系,既要保证选择的变量能够表征炉型条件、煤化度和黏结性对焦炭质量产生的影响,又要确认它们之间是相互独立的。然后运用这些参数建立预测焦炭的模型公式。全检验(F值检验)法检验结果表明本论文所建立的模型公式是高度显著的。通过复相关系数、数据点(横坐标为预测模型得到的预测值、纵坐标为实际值)在y=x直线周围的分布情况与通常所用的V-G模型进行比较,可以得出本论文所建立的模型公式的准确度远大于V-G模型。根据大型高炉对焦炭质量提出的要求,并结合实际生产条件对配合煤的质量指标的要求,得到一个配合煤质量指标范围。试验在武钢焦化公式煤研室20kg小焦炉上进行,所得的试验数据通过小焦炉与实际生产焦炉的关联进行修正后,得到的结果证明所得的配合煤质量指标范围是可以应用于实际生产的。更多还原

【Abstract】 With the developing of large sized blast furnace and the application of pulverized coal injection, the higher coke quality for blast furnace is required. Large sized coke oven is becoming one of developing directions for the coking process as result of improving coke quality.The characteristic of blending coal and coke data were obtained from several large sized coking plants in domestic. The coke quality is influenced by the parameters which characterized the size of coke oven, the rank of coal and caking property, and the relation between those parameters was analyzed. The parameters must be independent and properly characterize the size of coke oven, the rank of coal and caking property. Finally, the model of predicting coke quality was build by those parameters.The total final check up shows that it is exact to predict coke quality for the model.It can be concluded that the model which was build in this paper is more exact than the model of V-G from the distribution of data points(thwart is the value of fact, ordinate is the value of prediction) in the around of beeline y=x compared to the model of V-G which was established,The best range about characteristic of blending coal was obtained from the demand of coke quality for blast furnace, combined with the require of characteristic of blending coal for the industry.The experiment was done in a coke oven whose chamber volume is 20 kilogram in WISCO. The result of the experiment was modified by the regression between experimental coke oven and coke oven, and shows that the ideal range characteristic of blending coal is applicable for coking production.更多还原