Abstract

The sintering intensity is one of the important factors determining the technical and economic efficiency of sinter production which provides the blast-furnace process with the main kind of agglomerated raw iron ore. The process parameters of sintering critically influence the sinter burden caking rate. Therefore, the system study of the process parameters of sintering, which determine its intensity, is a matter of practical and scientific interest. In its purest form, it is shown that the sintering intensity is characterized by the vertical caking rate and the sinter burden carbon combustion intensity. The other two indices, including the specific performance for suitable sinter cake and the heat output intensity in the combustion zone, are less representative for the comparative estimation of the caking intensity, since their values depend on the sintered mass strength and the thermal effect of carbon combustion, respectively. These factors go beyond the essence of the sintering intensity concept. Since the content of 5 to 0 mm fines is different at different sinter plants, the representative comparison by sintering performance is possible only considering the total amount of returns at the sinter plant and the 5 to 0 mm fines generated along the whole sinter cake transport path to the blast furnace or the results of the sinter cake strength test in a drum. An integrated system classification of sintering intensification techniques is developed on the basis of the material-component principle using the separation into four levels which are objects, directions, paths, and methods. According to this principle, each subsequent level becomes more specific and develops the preceding one. The merit of this classification is its generality, which makes it possible to apply this system for classifying and separating almost all the already known and future methods of sintering intensification.

中文翻译：

---

决定烧结强度的工艺参数的系统研究

摘要

烧结强度是决定烧结生产技术和经济效率的重要因素之一，它为高炉工艺提供了主要的块状生铁矿石。烧结工艺参数对烧结炉料结块率有重要影响。因此，决定烧结强度的烧结工艺参数的系统研究是一个具有实际和科学意义的问题。最纯粹的形式表明，烧结强度的特征在于垂直结块率和烧结炉料碳燃烧强度。其他两个指标，包括合适的烧结饼的具体性能和燃烧区的热输出强度，对于结块强度的比较估计不太具有代表性，因为它们的值分别取决于烧结体强度和碳燃烧的热效应。这些因素超出了烧结强度概念的本质。由于不同烧结厂 5 至 0 毫米细粉的含量不同，因此仅考虑烧结厂的总返回量和沿整个烧结饼输送路径产生的 5 至 0 毫米细粉，就可以通过烧结性能进行代表性比较到高炉或转鼓中烧结饼强度测试的结果。以材料-成分原理为基础，将烧结强化技术分为对象、方向、路径、方法四个层次，对烧结强化技术进行了综合系统分类。根据这个原则，每个后续级别变得更加具体并发展前一个级别。这种分类的优点是其通用性，这使得可以应用该系统对几乎所有已知的和未来的烧结强化方法进行分类和分离。