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Calculation method of resistance loss of paste filling slurry pipeline transportation based on T-H coupling

A paste filling and pipeline conveying technology, applied in the field of paste filling, can solve problems such as the influence of the accuracy of simulation results, and achieve the effect of reducing industrial test time and optimizing rheological parameters

Active Publication Date: 2018-12-28
ANSTEEL GRP MINING CO LTD
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Problems solved by technology

In the process of data fitting, in general, the part with lower shear rate will be discarded, and only the part with linear change will be taken to obtain the corresponding structural model by data fitting, which will affect the accuracy of the simulation results

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  • Calculation method of resistance loss of paste filling slurry pipeline transportation based on T-H coupling
  • Calculation method of resistance loss of paste filling slurry pipeline transportation based on T-H coupling
  • Calculation method of resistance loss of paste filling slurry pipeline transportation based on T-H coupling

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Embodiment Construction

[0056] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.

[0057] Such as Figure 1-4 As shown, the present invention aims to provide a pipeline transportation simulation method of paste filling slurry under the coupled action of temperature and fluid mechanics, and the simulation method can systematically obtain the pipeline transportation characteristics of paste filling slurry during the process of temperature influence.

[0058] Treat the paste filling slurry as a homogeneous fluid, couple its flow field and temperature field, use the Euler method to describe the fluid flow, use the differential equation of fluid heat transfer to describe the role of the temperature field, and couple the thermal stress to the fluid flow In the stress balance differential equation, the T-H coupling mathematical model is formed, and the parameters measured by the rheometer are further optimized, so as to q...

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Abstract

The invention belongs to the technical field of paste filling in mining technology, in particular to a paste filling method based on a T-H coupled paste filling slurry pipeline transportation resistance loss calculation method, characterized in that the paste filling slurry is regarded as a homogeneous fluid, the flow field and the temperature field of the paste filling slurry are coupled, the fluid flow is described by the Euler method, the function of the temperature field is described by the differential equation of the fluid heat transfer, the temperature effect is coupled into the energyequation of the fluid flow, and the T-H coupling mathematical model is constructed, the parameters determined by rheometer are further optimized, and then the pipeline transportation characteristics of paste filling slurry in T-H-coupling process are of great significance to the design of paste filling pipeline and the design of paste filling slurry parameter ratio.

Description

technical field [0001] The invention belongs to the technical field of paste filling in mining technology, and in particular relates to a method for calculating the resistance loss of paste filling and slurry pipeline transportation based on T-H coupling. Background technique [0002] Paste filling has the advantages of less segregation and precipitation, good mechanical properties of filling body, high strength, less stope dehydration, low filling cost, and environmental friendliness. It is the development direction of mine filling technology in the future. [0003] Mathematical model is an effective means to describe the flow of paste filling slurry. It can predict the rheological characteristics of paste filling slurry under different conditions, and obtain reasonable filling slurry pipeline transmission parameters, so as to prevent many problems such as slurry plugging. . [0004] The selection of filling slurry pipeline transportation parameters plays a decisive role i...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F2113/14G06F30/20
Inventor 王忠红高源吴迪霍苗苗董海楠窦国语
Owner ANSTEEL GRP MINING CO LTD
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