ABSTRACT

Sinter is the most preferred metallic burden for modern-day blast furnaces. It is produced by agglomeration of iron ore fines in sinter machine. Sintering process depends on airflow through the sinter bed under high suction. The airflow through the sinter bed is measured by sinter bed permeability and has direct correlation with sinter productivity. Permeability can be determined by different ways. Among these methods, permeability detection by measuring the airflow through granular sinter bed by placing the instrument in the static wind box is very well known. But there is a challenge due to multiphase and turbulent conditions in the wind box.Infrared-based flow measurement technique has been used to measure flow. Therefore, this flow has been used to get permeability in the form of JPU (Japanese Permeability Unit). Productivity increases by 4% in spite of decrease in mean particle size of iron ore by 3.4% for a fixed time duration.

摘要

烧结矿是现代高炉最优选的金属炉料。它是由铁矿粉在烧结机中烧结而成。烧结过程取决于在高吸力下通过烧结床的气流。通过烧结床的气流由烧结床渗透率测量，并与烧结生产率直接相关。渗透性可以通过不同的方式确定。在这些方法中，通过将仪器放置在静态风箱中来测量通过颗粒烧结床的气流来检测渗透率是众所周知的。但是由于风箱中的多相和湍流条件，存在一个挑战。基于红外的流量测量技术已被用于测量流量。因此，这种流动已被用于以 JPU（日本渗透率单位）的形式获得渗透率。