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Influence of Proportion of Pellet on Burden Distribution

机译：颗粒比例对负担分布的影响

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摘要

Based on the movement analysis of burden in charging, a mathematical model of bell-less burden distribution is established to study the burden distribution in the furnace. The mathematical model consists of three sub-models: the material trajectory model, burden profile model, and burden descent model. The novel fitting formula that chute inclination angle and ratio of mixed ore affect the inner angle and outer angle of repose is proposed. The influence of pellet and sinter shapes on the inner angle and outer angle of repose of the ore is considered by introducing a correction coefficient. The modified fitting relation is applied to the mathematical model for bell-less blast furnace to analyze the influence of the proportion of pellet on the surface shape and radial distribution of ore-coke ratio under the same burden matrix. The influence rule of mixed ore ratio on burden distribution is obtained, which provides basis for adjusting the upper part of blast furnace.
机译：基于对充电负担的运动分析，建立了贝尔较少的负担分布的数学模型，以研究炉中的负担分布。数学模型由三个子模型组成：材料轨迹模型，负担型材模型和负担血压型号。提出了一种新的拟合配方，其呼吸倾斜角度和混合矿体的比例影响内角度和休置的外角。通过引入校正系数考虑颗粒和烧结形状对矿石内角和外角的影响。改进的拟合关系应用于较低的钟间高炉的数学模型，分析颗粒比例对同一负荷基质下矿石比例的表面形状和径向分布的影响。获得了混合矿石比对负荷分布的影响规律，为调节高炉上部提供了依据。

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