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
CN104390898BActive Publication Date: 2017-03-22SHANDONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV OF SCI & TECH
Publication Date
2017-03-22

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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.
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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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