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Using the principles of classical mechanics together with the mechanics of particalate media concerned, an analysis is made to the movement of burden material in the bell-free top of a blast furnace. A mathematical model is thus developed to express the burden movements in circular discharging funnel and rotary chute, taking account of the change of equivalent frictional coefficient μa and that of the position of the center of mass. The model is proved applicable to practical operation through experimental...

Using the principles of classical mechanics together with the mechanics of particalate media concerned, an analysis is made to the movement of burden material in the bell-free top of a blast furnace. A mathematical model is thus developed to express the burden movements in circular discharging funnel and rotary chute, taking account of the change of equivalent frictional coefficient μa and that of the position of the center of mass. The model is proved applicable to practical operation through experimental investigation, and it will provide theoretically a preliminary basis for the study of the widening of stock flow. Also, the influences of operating parameters on burden travel are discussed.

本文应用经典力学原理,结合散体力学知识,全面分析了炉料在无钟炉顶设备中的运动。当炉料在圆形滑槽、旋转溜槽内运动时,在其当量摩擦系数μ_α及质心位置均发生变化的条件下,建立了炉料运动的数学模型,实验测定结果证明了它的适用性,从而在理论上对料流变宽问题进行了初步的考察,并讨论了各操作参数对炉料运动轨迹的影响。

 
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