Device and method for preparing radioactive uranium mine standard substance

A standard material and preparation device technology, applied in the preparation of test samples, measuring devices, sampling, etc., can solve the problems of not truly representing the natural characteristics of the reference material, low degree of automation, low efficiency, etc., and achieve no dust harm to staff. , High grinding efficiency and good uniformity

Active Publication Date: 2017-07-07
BEIJING RES INST OF URANIUM GEOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved in the present invention is: the existing standard substance preparation device and preparation method have low degree of automation, low efficiency, heavy pollution, and cannot truly represent the natural characteristics of the standard substance

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  • Device and method for preparing radioactive uranium mine standard substance

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Embodiment Construction

[0033] The preparation device and method of a radioactive uranium ore standard substance of the present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0034] A preparation device for radioactive uranium ore standard materials, including an electric control cabinet 1, a feeding tank 2, an electric transmission system 4, a dropping box 6, a ball mill 9, a discharging box 13, and a working motor 14: the feeding tank 2 is used to hold For the roughly crushed standard substance candidate samples, the electric control cabinet 1 controls the electric transmission system 4 to move the feeding tank 2 to the top of the ball mill 9 nested inside the drop box 6, and the standard substance candidate samples are transferred from the feeding tank 2 to the ball mill 9. The working motor 14 provides power supply for the ball mill 9, and the discharge box 13 is connected to the lower part of the drop box 6 to hold the prepared standard s...

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Abstract

The invention belongs to the technical field of standard substance preparation, and particularly relates to a device and method for preparing a radioactive uranium mine standard substance. The device comprises an electric control cabinet, a feeding tank, an electric conveying system, a breaking box, a ball grinding mill, a discharging box and a work motor. The feeding tank is used for containing candidate samples, obtained after coarse crushing, of the standard substance, the electric control cabinet controls the electric conveying system to make the feeding tank move to the position above the ball grinding mill embedded into the breaking box, the candidate samples of the standard substance are transferred to the ball grinding mill from the feeding tank, the work motor supplies electric power to the ball grinding mill, and the discharging box is connected to the lower portion of the breaking box and used for containing the prepared standard substance. The method comprises the steps of drying, coarse crushing, feeding, grinding and mixing, breaking, discharging and the like. The device and method have the advantages of being automated, free of pollution, free of dust harmful to workers, low in cost and high in grinding efficiency, and the standard substance prepared through the method can accurately represent the natural characteristics of the substance.

Description

technical field [0001] The invention belongs to the technical field of standard substance preparation, and in particular relates to a preparation device and method for radioactive uranium ore standard substance. Background technique [0002] Reference Material (RM) refers to a material or substance that has one or more sufficiently uniform and well-defined characteristic values ​​for calibrating equipment, evaluating measurement methods, or assigning values ​​to materials. [0003] The preparation device and preparation method of the standard substance are very critical. At present, the sample processing and preparation systems of most domestic reference material development units adopt traditional jaw crushing and ball milling technologies to grind and pulverize candidate samples until the sieving rate of candidate samples through a 0.074mm sieve reaches 99.90%. The sample was placed in a mixer and mixed to prepare a standard substance. The equipment jaw crushers, ball mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N1/44
CPCG01N1/286G01N1/44G01N2001/2866
Inventor 李振涛郭冬发袁建
Owner BEIJING RES INST OF URANIUM GEOLOGY
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