摘要
离心选矿机流膜内的切向速度和轴向速度对分选起着重要的作用。切向流速在给矿初期起主要作用，随后过渡到以轴向流速起主要作用。流膜内各微层的切向流速与转鼓的转动不同步，愈接近流膜表面滞后愈大。不同步为矿粒的分散和选别创造了良好的条件，而且它又直接影响到轴向流速的分布。本文先对流膜内切向流速进行理论分析和计算，然后再分析它对轴向流速的影响。
The tangential and axial velocities within film of centrifugal separator play an important part in the separation The tangential velocity plays an important part in the initial stage of separation, soon afterwards the axial velocity does The tangential velocity in various mini layers are unsynchronous with one of rotating drums This unsynchronism creates favourable conditions for dispersion and separation of particles, and it directly influences the distribution of axial velocity In the first place, the tangential velocity within film is analysed and computed, then the effect for axial velocity is analysed in this paper
出处
《有色金属》
CSCD
1998年第2期31-35,30,共6页
Nonferrous Metals
基金
国家"八五"攻关项目资助
关键词
离心选矿机
流膜
流速
离心分选
centrifugal separator
film
fluid velocity
centrifugal separation
