具有储矿功能的深锥浓密机泥层高度变化规律  

Height Variation of the Mud Bed in Deep-cone Thickener with Ore-contained Function

作　　者：王洪江[1,2] 刘斯忠[1,2] 吴爱祥[1,2] 焦华喆[1,2] 刘晓辉[1,2] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083

出　　处：《矿业研究与开发》2014年第6期77-82,共6页Mining Research and Development

基　　金：国家自然科学基金资助项目(50934002,51104011,51074013);长江学者和创新团队发展计划资助(IRT0950);"十二五"国家科技支撑计划课题(2012BAB08B02)

摘　　要：一般认为深锥浓密机不具备储矿功能,但对于用于充填的深锥,由于充填作业的间断性,其必须具备一定的储矿功能。不同功能的深锥浓密机对应着不同的泥层高度,因此,有必要分析深锥内部泥层高度的变化规律。针对具有储矿功能的深锥浓密机,建立了计算泥层高度的数学模型。以某矿浓密机设计为例,分析验证了所建立的数学模型。计算结果显示:对于不具备储矿功能的深锥,泥层高度维持在4.55m;对于充填和堆存联合处置的深锥,泥层高度最大值提高了1.22m;对于充填的间断排料方式,泥层最大高度提高了4.11m。此外,由于泥层最大高度的增大,耙子驱动功率也相应增大。The deep-cone thickener was generally believed without ore-contained function.However,the thickener which was used for backfilling must require a certain orecontained function as backfilling discontinuity.The deepcone thickeners with different functions corresponded to different heights of mud bed,so it was necessary to analyze the height variation of mud bed.Aiming at the deep-cone thickener with ore-contained function,the mathematical model was built to calculate the height of mud bed.Taking a thickener design in a mine for an example,the related mathematical model was analyzed and verified.The results showed that the mud bed height kept on 4.55 mfor the deep-cone thickener without ore-contained function,while the maximum height of mud bed increased 1.22 mfor the deep-cone thickener with combining function of backfilling and piling disposal,and the maximum height of mud bed increased 4.11 mfor the discontinuous nesting mode of backfilling.Besides,the driving power of pitch fork would improve with the increase of the maximum height of mud bed.

关 键 词：深锥浓密机 储矿功能 泥层高度 变化规律 数学模型 

分 类 号：TD952[矿业工程—选矿]