新型磁力水力旋流器及其复合力场的研究

磁力水力旋流器是一种高效分选磁性物料的设备。采用测试、计算等方法的型磁力水力旋流器的复合力场进行分析，从理论上定量地推测出离心力、磁场力和拖曳力的大小，并且定性地分析了层间剪切力及层间斥力对磁团的影响。结果表明，对分选过程起决定作用的力是离心力；磁性颗粒所形成的磁团大小以及它们的强度取决于外磁场的强度、矿浆浓度和矿浆在旋流器中的流动速度；反流圆盘是新型磁力水力旋流器的关键部件，它对减少金属流失起到

STUDY ON A NOVEL MAGNETIC HYDROCYCLONE AND ITS COMPOUND FORCE FIELD

Magnetic hydrocyclone is a highly efficient device for the separation of magnetic materials.The compound force field of the novel magnetic hydrocyclone has been analyzed by means of testing and calculation.The amountof centrifugal force,magnetic field force and towing force has been quantitatively conjectured in theory,and the influence of the interlayer shear force and repulsive force on the magnetic aggregate has been qualitatively analyzed.Results indicate that the force which plays a decisive role in the separation is the centrifugal force.The size of the magnetic aggregates formed by magnetic particles and the strength of these aggregates are determined by the strength of the external magnetic field, the pulp concentration and the flow velocity of the pulp in the hydrocyclone.The counter- flow disk is the key partof the novel magnetic hydrocyclone,which plays a critical role in the reduction of metal loss.