ABSTRACT

This article describes the simulation method for layering the components of the charge in the blast furnace, including the particle size distribution and gas flow distribution of bell-less top charging systems in blast furnaces. The Burden Distribution application, which simulates the charge in blast furnaces operated by the company Třinecké železárny (ironworks) to optimize the production of pig iron, applied this simulation method. Based on the parabolic trajectory of the material falling from the tilting chute of the bell-less top charging system, the method is calculating the profile of individual charge layers. The material forms after impact according to known angles of repose, segregating into individual granulometric size fractions. The data incorporated into the simulation enables the estimation of charge and gas flow distribution along the radius of the blast furnace shaft. The article presents the used mathematical models and equations, including algorithms of the simulation.

摘要

本文介绍了高炉炉料组分分层的模拟方法，包括高炉无钟罩炉顶装料系统的粒度分布和气流分布。Burden Distribution 应用程序模拟了 Třinecké železárny（钢铁厂）公司运营的高炉中的装料，以优化生铁的生产，应用了这种模拟方法。该方法基于从无钟罩顶部装料系统的倾斜溜槽落下的材料的抛物线轨迹，计算单个装料层的轮廓。材料在根据已知的休止角撞击后形成，分离成单独的粒度级分。纳入模拟的数据能够估计沿高炉竖井半径的装料和气流分布。本文介绍了所使用的数学模型和方程，包括模拟算法。