浅槽重介分选机分选下限和重介悬浮液上升流速度关系的研究
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摘要
利用ANSYS FLUENT软件对浅槽重介分选机内部的液-固多相流系统进行数值模拟,通过引入150～6 mm的颗粒,利用耦合离散相模型对颗粒在槽体内部的运动轨迹进行研究。研究表明,改变上升流速度的大小,测定颗粒在X方向、Y方向上位移大小的差异,从而得出浅槽重介分选机中悬浮液上升速度和分选下限的关系。
Numerical simulation is made of the liquid-solid multiphase flow system in the shallow-bath heavy medium separator using the software ANSYS FLUENT. After introduction of the 150～6 mm particles into the separator, the trajectory of the motion of the particles in the bath is investigated with the use of the coupled discrete-phase model. Through measurement of the different displacements of particles in the X-direction and the Y-direction when the medium suspension varies inupward flow velocity, the relationship between the separator′s lower size limit of separation and the medium suspension upward flow velocity is derived.
Numerical simulation is made of the liquid-solid multiphase flow system in the shallow-bath heavy medium separator using the software ANSYS FLUENT. After introduction of the 150～6 mm particles into the separator, the trajectory of the motion of the particles in the bath is investigated with the use of the coupled discrete-phase model. Through measurement of the different displacements of particles in the X-direction and the Y-direction when the medium suspension varies inupward flow velocity, the relationship between the separator′s lower size limit of separation and the medium suspension upward flow velocity is derived.
引文
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