Measuring method and device for loose smashed radioactive material radon precipitation ability

A technology of jet medium and capacity, which is used in the field of measuring the radon precipitation capacity of loose and broken jet media, and achieves the effects of good sealing performance, simple operation and effective calculation.

Inactive Publication Date: 2011-03-30
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no effective measurement and calculation method and device for the radon precipitation capacity of loose and broken emanation media.

Method used

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  • Measuring method and device for loose smashed radioactive material radon precipitation ability
  • Measuring method and device for loose smashed radioactive material radon precipitation ability
  • Measuring method and device for loose smashed radioactive material radon precipitation ability

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Embodiment Construction

[0036] Uranium ore sample 2: Prepared according to weight ratio, uranium ore with a particle size of 0-1 cm accounted for 49.36%, uranium ore with a particle size of 1-2 cm accounted for 17.23%, uranium ore with a particle size of 2-3 cm accounted for 11.06%, and uranium ore with a particle size of 3-4 cm accounted for 8.14% %, 4-5cm uranium ore accounted for 6.45%, 5-7cm uranium ore accounted for 7.76%, with a total weight of 25kg. Weigh them separately according to the weight ratio, mix them evenly, put them into the experimental device B and seal them. The pressure is normal pressure, the temperature is 27°C, the humidity is 44%, and the ore moisture content is 0.96%.

[0037] Use the ear washing balls A and B with a volume of 0.09 L that have been removed from the air connected to the rubber tubes 3 of the devices A and B respectively, inhale the radon gas that has been generated in the device, and then press the gas into the device. After repeating the operation for 2 mi...

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Abstract

The invention provides a method and a device for measuring the capability of precipitating radon of a loose broken emanation medium. The experimental device which is adopted for measurement and provided by the invention is mainly used for measuring the capability of precipitating radon in gaps between particles from the loose broken emanation medium which is large in particles size, extremely nonuniform in gradation distribution and free from connection of particles. By measuring the concentration C of the radon at different moments, a relation graph of the radon concentration C and time t isconstructed. According to the differential principle, the tangent slope of each measuring point on a curve reflects the capability of precipitating radon from the loose broken emanation medium at corresponding time points and concentration points.

Description

technical field [0001] The invention relates to a method and a measuring device for measuring the radon precipitation capacity of loose and broken emanation media, in particular to a method and a measuring device for measuring the radon precipitation capacity of loose and broken emanation media in the in-situ blasting leaching uranium mining technology. Background technique [0002] The in-situ blasting and leaching uranium stockyard is a uranium ore pile constructed by the blasting method, which has the following characteristics: (1) it is composed of ore particles with different particle sizes and irregular shapes; (2) the size of the particles is (3) There is no connection between particles. According to these characteristics, the uranium ore heap can be abstracted as a loose and broken emanation medium. The migration of radon in the loose fragmented emanation medium includes two processes: first, radon is generated from the ore particles and enters the gaps between the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/00G01T1/167
Inventor 丁德馨李广悦陈翔徐文平郭晓斌
Owner NANHUA UNIV
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