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Device for online measurement of uranium concentration of leach slurry of uranium ore, and application method

A concentration measurement and leaching technology, applied in X-ray energy spectrum distribution measurement and other directions, can solve problems such as poor electromagnetic compatibility and high power consumption

Active Publication Date: 2017-04-19
北京博瑞赛科技有限责任公司
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  • Abstract
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a rotating mechanism control device, so as to solve the traditional problems of poor electromagnetic compatibility and high power consumption

Method used

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  • Device for online measurement of uranium concentration of leach slurry of uranium ore, and application method
  • Device for online measurement of uranium concentration of leach slurry of uranium ore, and application method
  • Device for online measurement of uranium concentration of leach slurry of uranium ore, and application method

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Embodiment Construction

[0035] The technical solutions of the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0036] Such as figure 1 Shown, the present invention is a kind of on-line uranium mine leaching pulp uranium concentration measuring device, this measuring device is controlled by the NaI(Tl) detecting unit, adopts the stepper motor to drive 235 U calibration source, motor shaft sheath 11, MCA pulse amplitude multi-channel analyzer 19, computer 20;

[0037] NaI (Tl) detection unit is made up of NaITl crystal 3, photomultiplier tube 4, electronics unit 7 and output signal line;

[0038] The overcoat of the detecting unit of NaIT1 is polytetrafluoro sheath 5;

[0039] The output signal line of the NaI (Tl) detection unit is connected to the power supply 16 through the power supply line one way, and the other road is connected with the pulse circuit 17 and then connected to the MCA pulse amplitude multi-channel analyzer 19,...

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Abstract

The invention belongs to the technical field of online analysis and measurement of the uranium concentration of leach slurry of a uranium ore hydrometallurgical mill, and specifically relates to a device for the online measurement of the uranium concentration of leach slurry of a uranium ore, and an application method. The device determines the area of a uranium peak through dynamically capturing the position of the gamma peak 185.7keV of 235U in a spectrum and determining an ROI value, solves a problem of impacts on a measurement result from temperature changes, high-voltage source changes, the gain changes of a photomultiplier and the drift of an electronic circuit, and improves the measurement stability and reliability of an instrument. The device does not employ a complex negative feedback temperature compensation method, and employs a computer to track the gamma feature peak of 235U, and determines the measurement position. Figure 2 and Figure 3 describe the change conditions of the gamma feature peak of 235U along with the temperature. Only if the gamma feature peak of 235U is determined, can the uranium concentration be accurately determined.

Description

technical field [0001] The invention belongs to the technical field of on-line analysis and measurement of the uranium concentration of leached pulp in uranium mine water smelting plants, and in particular relates to an online uranium mine leached pulp uranium concentration measuring device and a use method. Background technique [0002] At present, in the field of uranium concentration measurement in leaching pulp in uranium mine water smelting plants, there are mainly soft gamma absorption methods abroad, X-ray fluorescence analysis methods, delayed neutron analysis methods, gamma energy spectroscopy, spectrophotometry, etc. There is no on-line analysis instrument or device for monitoring the uranium concentration of the leached pulp in domestic uranium mine water smelting plants. [0003] In uranium mine water smelting plants, online analysis of uranium concentration in ore pulp has always been a difficult problem, the reasons are as follows: [0004] (1) During the leac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/36
CPCG01T1/36
Inventor 李绍海王腾飞陈强陈福平柳杰由文职
Owner 北京博瑞赛科技有限责任公司
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