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结合炉料在无料钟炉顶高炉中的实际运动情况,对炉料颗粒的运动和受力进行分析,建立了料流轨迹运动方程,改进了前人提出的模型,并利用实际高炉开炉装料实测数据对模型进行验证.结果表明,该模型计算的落点半径与实际测量数据较接近;沿溜槽长度方向单位质量炉料所受的科氏力不断增大,在溜槽倾角41o条件下,单位质量的焦炭所受科氏力约为2.2～5.5m/s2,矿石约为2.1～4.6m/s2,分别约占重力加速度的22%～56%和21%～47%;当煤气流速为0时,气体曳力系数焦炭为1.83～1.88,矿石为3.32～3.40,单位质量炉料所受阻力为2.4～4.9m/s2,约占单位质量炉料所受重力的1/4～1/2.
Combined with the actual movement of the charge in the blast furnace with no bell, the motion and force of the charge are analyzed, and the equation of motion of the flow path is established, the model proposed by the predecessor is improved, and the actual blast furnace charge The measured data validate the model.The results show that the radius of the falling point calculated by the model is close to the actual measured data.The Coriolis force per unit mass of charge increases along the length of the chute, Of coke suffered Coriolis force of about 2.2 ~ 5.5m / s2, ore about 2.1 ~ 4.6m / s2, respectively, accounting for about 22% ~ 56% and 21% ~ 47% of the acceleration of gravity; when the gas flow rate is 0 , The drag coefficient of coke is 1.83 ~ 1.88, and the ore is 3.32 ~ 3.40. The resistance of unit charge of charge is 2.4 ~ 4.9m / s2, which accounts for about 1/4 ~ 1/2 of the gravity of unit load of charge.