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High-concentration tailing filling slurry stirring process optimization method

A technology of stirring process and filling slurry, which is applied in design optimization/simulation, image data processing, 3D modeling, etc., can solve the difficult quantitative optimization of stirring device and process parameters, and the distribution law of time and space that cannot be quantified and other issues to achieve the effect of shortening the test and debugging cycle, reducing processing costs, and reducing the risk of accidents

Active Publication Date: 2020-05-22
CINF ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above technologies do not consider the mechanical behavior characteristics of solid particles and particles, solid particles and containers, and solid particles themselves, and cannot quantitatively characterize the distribution of various materials in time and space, making it difficult to quantify the stirring device and process parameters. optimization

Method used

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  • High-concentration tailing filling slurry stirring process optimization method
  • High-concentration tailing filling slurry stirring process optimization method
  • High-concentration tailing filling slurry stirring process optimization method

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Embodiment

[0071] In an embodiment of the present invention, a high-concentration tailings slurry mixing process optimization method includes the following steps:

[0072] Step S1. Preliminarily determine the high-concentration tailings slurry mixing process: a mine has a production capacity of 3 million tons per year, and the underflow of the thickener has a mass concentration of 66% and a flow rate of 180m 3 Enter the mixer under the condition of / h; the cementitious material is synchronously added into the mixer according to the lime-sand ratio of 1:10, and the flow rate of the slurry at the outlet of the mixer is required to be 200m 3 / h, mass concentration 68%; according to the effective utilization coefficient of the mixer container 0.7, the mixing time of the material is 3min, the preliminary calculation of the mixer selection is 3.0m in diameter, 2.6m in height; according to experience, a single-shaft double impeller structure is adopted, and each impeller has three fans Blade, b...

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Abstract

The invention discloses a high-concentration tailing filling slurry stirring process optimization method, and belongs to the technical field of mine filling. The method comprises the following steps:1) preliminarily determining a stirring process; 2) constructing a solid three-dimensional model; 3) calibrating simulation parameters; 4) performing simulation run of the stirring process; 5) analyzing and evaluating a simulation result; and 6) optimizing and determining the stirring process. According to the method, discrete elements are coupled with smooth particle hydromechanics (DEM-SPH), stirring simulation of a full-size device and a whole process is carried out, the stirring uniformity is analyzed and evaluated on the basis of the change rule of the concentrations of the tailing particles and the cementing material particles at the outlet hole changing along with time, the stirring process of the high-concentration tailing filling slurry is accurately optimized, the strength of a filling body and the good conveying performance of the filling slurry are guaranteed, design and industrial tests are effectively guided, investment is saved, efficiency is improved, and cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of mine filling, and in particular relates to a method for optimizing the mixing process of high-concentration tailing sand filling slurry. Background technique [0002] The filling mining method can prepare the tailings produced in the mine into slurry and fill them into the goaf. On the one hand, it can reduce or eliminate the stockpiling of tailings on the surface. On the other hand, the deformation and movement of the surrounding rock after the goaf is filled can be effectively solved. The contradiction between mine resource development and safety and environmental protection reflects the scientific connotation of "one waste, two harms". High-concentration tailings filling is conducive to improving the strength of the filling body, reducing the consumption of cementitious materials, and providing effective technical support for mine safety, environmental protection, high efficiency, and low-cost mining. ...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06T17/00G06F111/10
CPCG06T17/00Y02W30/91
Inventor 熊有为刘福春刘恩彦
Owner CINF ENG CO LTD
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