摘要
针对前人对粒子运动方程特征解求解、粒子运动行为描述及分离粒度计算数学模型推导时存在的不足,首次提出采用Matlab软件通过计算机编程求解粒子运动方程的方法;并论证了所有粒子在理论上均满足平衡状态条件,但在通过旋流器的有效停留时间内不一定都能达到平衡状态;绝大多数粒子在最终分离前,沿径向都能运动至以各自平衡面为中心±0.1R的狭窄环形区域面内,即处于"准平衡"状态。该研究在原基础上进一步完善和发展了平衡轨道理论,对于实现最高分离效率和分离精度有一定积极作用。
In view of the insufficiencies of the work made by earlier workers in characteristic solution, description of particle motion and derivation of size of separation through computational mathematic mod- eling, it is first proposed in the paper to obtain solution of particle motion equations through computer programming using Matlab software. It is demonstrated that： all the particles can theoretically reach the balanced state, but some of the particles may not be able to do so within their effective residence time in hydrocyclone ; and the majority of the particles can move in a radical direction to the narrow annular zone before they are finally separated. In this case they are in a quasi-equilibrium state. The research work made is an improvement and development of the existing equilibrium orbit theory and plays a positive role in realizing the highest level in separating efficiency and sharpness.
出处
《选煤技术》
CAS
2016年第3期1-5,9,共6页
Coal Preparation Technology
关键词
旋流器
平衡轨道理论
径向速度
分离粒度
粒子运动方程
cyclone
equilibrium orbit theory
radial velocity
separation size
particle motion equations
