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

A technology of FLUENT-EDEM and spiral sorting machine, applied in design optimization/simulation, geometric CAD, computer-aided design, etc., can solve problems such as low calculation accuracy, weak feasibility, difficult simulation, etc., and achieve good sorting effect Effect

Pending Publication Date: 2022-07-05
DALIAN UNIV OF TECH
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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

Method used

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

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Embodiment Construction

[0022] The technical solutions of the present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0023] 1. Data collection

[0024] According to the total solid feeding amount of the pulp required to be sorted, the solid weight concentration, the water amount, the solid relative density (the average value does not contain voids), the solid volume per unit time (without voids) and the pulp volume per unit time (water density according to 1t / h), the feeding outlet pipe diameter, so as to calculate the outlet flow rate (the initial velocity of the slurry entering the screw).

[0025] This experiment is based on Fluent software and EDEM software. The basic parameters of the spiral sorting machine model used in this case include: the inner diameter, outer diameter, starting angle, number of rotations, and height of the spiral groove, which are in the order of 10 to the power of 3 in mm, and export the file in IGS format. ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/28G06F111/10G06F113/08G06F119/14
CPCG06F30/17G06F30/28G06F2111/10G06F2113/08G06F2119/14Y02P90/30
Inventor 向哲源游泽苍赵司仪马若涵周恩宇李珅姬国钊
Owner DALIAN UNIV OF TECH
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