Visual experiment deice and method for simulating dust transfer in thermal and humid environment of fully mechanized face tunnel

Abstract

The invention discloses a visual experiment device and method for simulating the dust transfer in a thermal and humid environment of a fully mechanized face tunnel, and the device comprises a model tunnel, a dust generation system, a thermal and humid gas supply system, a ventilation system, a flow field monitoring system, and a dedusting system. Through the simulation of the moving process of dust in the thermal and humid environment of the tunnel under the action of the ventilation system, the device carries out the visual research of the movement features of dust under the conditions of different dust productivities, pumping ratios and ventilation. Through the quantitative and qualitative information of dust distribution, the device analyzes the feature information of diffusion, movement, sinking and distribution of dust under the action of the ventilation system, analyzes the internal relation of the information, reveals the spatio-temporal variation rule of dust movement and distribution of the fully mechanized face tunnel under the action of a complex wind current, determines reasonable ventilation dust control parameters, optimizes the technology of dust control for a target work surface, and provides effective basis for achieving the optimal dust removing effect of a wind field of a fully mechanized face.

Description

technical field [0001] The invention relates to a roadway model visualization test device and method, in particular to a roadway model test device and method suitable for simulating multi-ventilation conditions in a hot and humid environment, belonging to the field of safety engineering ventilation and dust removal model tests. Background technique [0002] With the improvement of the mechanization degree and production intensity of comprehensive mechanized excavation in coal mines, the problem of coal mine dust damage has become increasingly prominent. Especially in fully mechanized excavation face, the roadway dust output is large and the concentration is high. According to reports, when dust prevention measures are not taken, the dust concentration in the roadway of the fully mechanized excavation face seriously exceeds the standard, which directly leads to the increase of the hidden danger of dust explosion. At the same time, the concentration of respirable dust in the ...

AI Technical Summary

Problems solved by technology

[0003] A comprehensive analysis of the main dust control measures at home and abroad shows that the existing dust control and dust removal technologies and management measures have great limitations, and the effect of dust control is not ideal. The essential problem is that the law of dust distribution is still unclear, resulting in The design and equipment layout of many dust removal systems on site cannot achieve the best results or cannot be used at key points

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