Rule andoptimum magnetization parameters of sedimentation of pre-magnetized crude tailings slurry
WANG Xinmin
KE Yuxian
ZHANG Qinli
YANG Jian
Abstract：Magnetic treatment was introduced into crude tailings slurry (CTS) sedimentation,so as to reduce the expense and improve the effect of dewatering and concentrating of CTS.Moreover,sample data were constructed through orthogonal test,and the optimal magnetization parameters of magnetized CTS could be determined by GA-BP model.The results show that the magnetized CTS sedimentation indexes display the trend of firstly increase and then decrease accompanied with the increase of magnetic induction intensity,magnetic processing time or slurry velocity in a non-linear manner.Appropriate magnetization conditions could enhance the sedimentation indexes of CTS.The optimal magnetization flocculating settlement parameters of CTS are magnetic induction intensity of 0.192 T,magnetic processing time of 1.85 min,slurry velocity of 1.92 m/s,and PAC consumption of 28 g/t.Under such condition,the maximum sedimentation velocity is about 155 cm/h and the PAC consumption can be saved by 30.0％ to 42.5％.
Keywords：crude tailingsflocculating sedimentationmagnetic treatmentBP neural networkgenetic algorithm
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 803-808 )