Radon precipitation simulation device based on low-frequency vibration and radon precipitation rate measurement method

A technology of low frequency vibration and radon precipitation rate, which is applied in the field of radon precipitation simulation device, can solve the problems of rising radon precipitation, rupture and other problems, and achieves the effect of avoiding partial damage

Pending Publication Date: 2018-02-09
NANHUA UNIV
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Problems solved by technology

[0003] During the mining process of underground uranium resources, mechanical vibration or changes in geological structure may cause the rupture of the surrounding rock of the uranium mine and lead to an abnormal increase in the amount of radon precipitation. It is related to the characteristics of micro-cracks produced by rock fracture, but there is still a blank on the law of radon precipitation in uranium mine surrounding rocks under the action of low-frequency vibration during uranium mining operations. The simulati

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  • Radon precipitation simulation device based on low-frequency vibration and radon precipitation rate measurement method
  • Radon precipitation simulation device based on low-frequency vibration and radon precipitation rate measurement method
  • Radon precipitation simulation device based on low-frequency vibration and radon precipitation rate measurement method

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[0074] The present invention will be further described below with reference to the embodiments.

[0075] like figure 1 and figure 2 As shown, a radon precipitation simulation device based on low frequency vibration provided in this embodiment includes a power amplifier 14, a frequency sweep signal generator 15, a radon precipitation module, a dryer 7 and a radon measuring instrument 10, wherein the radon precipitation module It includes a vibration exciter 2 , a radon extraction tank 17 , a top cover 5 , a vibration rod 1 and a slide rail 3 .

[0076] Wherein, the power amplifier 14 is electrically connected to the frequency sweep signal generator 15, and the power amplifier 14 is connected to the exciter 2 through a power supply pipeline, such as figure 2 Shaker power access line 16 is shown. The power amplifier 14 and the frequency sweep signal generator 15 are adjusted so that the exciter 2 outputs the excitation force of the specific frequency and the specific vibrati...

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Abstract

The invention discloses a radon precipitation simulation device based on low-frequency vibration and a radon precipitation rate measurement method. The simulation device includes a power amplifier, a frequency sweep signal generator, a radon precipitation module, a drier and a radon measuring instrument; the radon precipitation module includes an exciting vibration radon extraction tank, top cover, vibrating rod and slide rail; the radon extraction tank accommodates uranium-like ore rock test block, the vibration exciter is fixed on the sliding rail and connected with the power amplifier, and the vibration rod is set on the vibration exciter and radon extraction tank In between, the slide rail is provided with a base platform that can move along the slide rail, and the radon precipitation tank is fixed on the base platform; an airflow circuit is formed between the top cover and the radon measuring instrument; the dryer is set between the gas outlet of the radon precipitation tank and the On the pipe path of the air inlet of the radon meter. The device can simulate radon precipitation of uranium-like ore rocks under low-frequency vibration and obtain experimental data through the device, so as to provide a data basis for studying the law of continuous radon precipitation rate variation of uranium ore rocks under the action of low-frequency disturbance loads.

Description

technical field [0001] The invention relates to a low-frequency vibration-based radon exhalation simulation device and a method for measuring radon exhalation rate. Background technique [0002] With the depletion of uranium resources above the surface and shallow underground in China, it is an urgent problem to study the precipitation mode and prevention of radon in deep uranium mining. Regarding the relationship between the amount of radon released in the rock mass and the micro-cracks generated by vibration, the domestic academic circles have carried out some research on this. The radon anomaly is related to the micro-cracks generated under the condition of mechanical vibration. S Mollo et al. studied the radon exhalation law of fractured rocks, and found that the crustal vibration produced by earthquakes and volcanic activities will have a certain impact on the radon exhalation before rock fracture. Lu Hanjiang studied the characteristics of radon emanation changes in ...

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Application Information

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IPC IPC(8): G01T1/167
CPCG01T1/167
Inventor 李向阳蔡梓麒洪昌寿汪弘赵勇袁劲帆梁珊
Owner NANHUA UNIV
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