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	Falcon选矿机的分选机理及其应用
	温雪峰 ; 潘彦军 ; 何亚群 ; 赵跃民 ; 宋树磊 ; 段晨龙 ; WEN Xue-feng ; PAN Yan-jun ; HE Ya-qun ; ZHAO Yue-min ; SONG Shu-lei ; DUAN Chen-long
	2010-06-10 ; 2010-06-10
关键词	Falcon选矿机 重力分选 离心分选 回收 Falcon concentrator gravity separation centrifugal separation recovery TD456
其他题名	Study on Separation Mechanism of Falcon Concentrator and Its Application
中文摘要	Falcon选矿机是一种新型的离心分选机.为研究其分选机理,以Falcon SB离心分选机为例,建立了球形颗粒在离心分选机分层区和分选区的动力学方程.分析结果表明,在Falcon SB分层区,高强度离心加速度是实现微细颗粒快速沉降的关键因素;分选区内独特的流态化反冲水形成流态化床层,使得微细高密度颗粒穿过床层沉积到来复圈槽中,而低密度颗粒所受的离心力较小,加上难以克服反冲水的作用而进入尾矿,从而实现了不同密度微细颗粒的有效分选.采用Falcon SB40选矿机分选-0.074 mm电路板的试验结果表明:在入料浓度为40 g/L,给料速度为160 L/h,反冲水压力为0.01 MPa,滚筒旋转频率为50 Hz时,一次分选获得金属富集体的品位为76.89%,回收率82.19%,综合效率80.77%.; Falcon concentrator is one of the new centrifugal separators developed in recent years.A Falcon SB concentrator was employed and the kineticequations for spherical particles in segregationzone and separation zone were proposed respectively.Analysis results indicate that enhanced centrifugal acceleration is the key factor for the quick settlement of fine particle in segregation zone.In separation zone,a uniquely fluidizedbed is formed due to the existence of anti-pressure water,and under this mode,the fine heavy particles can perforatethrough the fluidized bed and reach its bottom to get concentrated.The lighter particles move outwards towards the center of the bowlandreport to the tailings due to relatively smaller centrifugal force and the action of anti-pressure water.Therefore density-based particle separation is effectivelyachieved.Separation experiments were performed using a Falcon SB40 concentratorto recover metals from-0.074 mm printed circuit boards.The results show that a concentrate grade of 76.89% with a recovery of 82.19% and an integration efficiency of 80.77% can be obtainedwhile the slurry concentration of 40 g/L,feed speed of(160 L/h,)water counter pressure of 0.01 MPa and rotationfrequency of 50 Hz.; 高等学校博士学科点专项科研基金项目(20030290015)
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/64894]
专题	清华大学
推荐引用方式 GB/T 7714	温雪峰,潘彦军,何亚群,等. Falcon选矿机的分选机理及其应用[J],2010, 2010.
APA	温雪峰.,潘彦军.,何亚群.,赵跃民.,宋树磊.,...&DUAN Chen-long.(2010).Falcon选矿机的分选机理及其应用..
MLA	温雪峰,et al."Falcon选矿机的分选机理及其应用".(2010).

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