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A kind of simulation experimental device and experimental method of spray dust fall law under wind flow field

A simulation experiment device and the technology of the simulation device, which are applied in the field of simulation experiment devices for the law of spray dust fall under the wind flow field, can solve problems affecting mine safety production, mine dust explosion accidents, etc., achieve compact structure, high simulation degree, and avoid environmental pollution Effect

Active Publication Date: 2017-03-22
SHANDONG UNIV OF SCI & TECH
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  • Abstract
  • Description
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Problems solved by technology

High-concentration dust will not only cause occupational diseases, but may also cause mine dust explosion accidents, seriously affecting the safe production of mines

Method used

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  • A kind of simulation experimental device and experimental method of spray dust fall law under wind flow field

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Embodiment Construction

[0057] The simulated experimental device of the present invention for the spray dust reduction law under the wind flow field will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0058] Such as figure 1 As shown, the simulated experiment device of the spray dust-falling law under the wind flow field of the present invention, the roadway simulation device mainly includes the air inlet section 3, the diffusion section 4, the stabilization section 7 and the contraction section 11, the air inlet section 3 is provided with the air inlet 2, and the contraction section Section 7 is provided with an air outlet 12, and a suction fan 13 is installed at the air outlet 12 to ensure a stable air flow in the roadway simulation device. The barometer 5, the air flow velocity measuring instrument 6, the PM 2.5 dust sampler 10, and the PDI200MD laser fog The drop particle size measuring instrument 18 measures parameters such as the air pressure and w...

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Abstract

The invention discloses a simulated experimental device and an experimental method for the law of spray dust fall under the wind flow field. During the experiment, a stable wind flow field is mainly formed in the simulated experimental device through a suction fan; Under the action, the dust is transported into the simulated experimental device; through the nozzle on the spray rod connected to the water supply pump, a stable water mist is formed in the simulated experimental device; through the laser droplet size analyzer and PM2.5 dust sampler respectively Measure the droplet size and droplet velocity at different measuring points under different conditions, as well as the dust concentration before and after passing through the droplet field, and transmit the data to the computer, so as to obtain the particle velocity, Relationship between particle size and concentration. The invention has the characteristics of high degree of simulation, accurate and reliable experimental results, compact device structure, convenient and convenient experimental operation, flexible adjustment and the like.

Description

technical field [0001] The invention relates to a simulation experiment device and an experiment method thereof, in particular to a simulation experiment device and an experiment method thereof for the law of spray dust fall under a wind flow field. Background technique [0002] In recent years, with the improvement of the degree of mechanization of my country's coal industry, the problem of high-concentration dust in the mining face has become more and more serious. According to the actual measurement, without any dust prevention measures, the dust concentration at the face of fully mechanized excavation is 1200-1500mg / m 3 , individual up to 3000mg / m 3 Around; in the coal mining face, the dust concentration of the general fully mechanized mining face can reach 2500-3000mg / m 3 , and the concentration of respirable dust in the dust is close to 40%. High-concentration dust will not only cause occupational diseases, but also may cause mine dust explosion accidents, seriously...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/04
Inventor 程卫民周刚聂文崔向飞薛娇于海明马有营马骁张琦白若男
Owner SHANDONG UNIV OF SCI & TECH
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