Spiral sorting machine structure optimization method based on FLUENT-EDEM coupling simulation

Abstract

The invention provides a spiral sorting machine structure optimization method based on FLUENT-EDEM coupling simulation, and belongs to the field of energy. According to the method, on the basis of the CFD technology, after finite element ANSYS mesh grid division is carried out, FLUENT is used for simulating the fluid flowing state, and through CFD and DEM bidirectional coupling numerical simulation, an Euler-Lagrange model is adopted for simulation. According to the method, the movement condition of particles in fluid can be clearly and visually analyzed, various parameters of the spiral sorting machine are improved and optimized through simulation analysis, optimal operation and operation of the particle sorting machine in industrial production are guided, and the effects of getting twofold results with half the effort and improving quality and efficiency are achieved. Compared with other traditional experimental equipment research methods, the method has the advantages of being lower in research and development cost, smaller in limitation, higher in design efficiency and the like.

Description

technical field [0001] The invention belongs to the field of energy, and in particular relates to an optimization design and simulation technology and method based on a CFD spiral separator. Background technique [0002] The spiral separator is a fine-grained coal gravity separation equipment that relies on the particles in the pulp to achieve stratified separation according to the density difference under the action of gravity, water drag, centrifugal force, etc. The sorting effect of the spiral separator is closely related to the structural parameters of the separator (including tangential inclination angle, radial inclination angle, groove bottom shape, length and shape of the spiral groove, rotation speed and direction and other parameters) (reference: Zhao Yinyin.Influence of structural parameters of spiral separator on sorting effect[J].Development of Mechanical Management,2018,33(09):123-124.DOI:10.16525 / j.cnki.cn14-1134 / th.2018.09.052 .).) [0003] The common fault...

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Problems solved by technology

[0006] At the same time, the current CFD simulations generally have (1) relatively low calculation accuracy; (2) when simulating complex systems, it is difficult to implement on the circuit, and the accuracy is not easy to guarantee; (3) when the logic judgment link in the system When there are many, the simulation is more difficult and the feasibility is weak; (4) The degree of automation is low, and it is necessary to manually troubleshoot problems, arrange and other shortcomings

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