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Method and device for continuously detecting uranium content in materials

A technology of uranium content and materials, applied in the field of detection equipment, can solve the problems of not being able to reflect the content of uranium in real time, time-consuming, etc., and achieve the effect of automatic operation

Active Publication Date: 2018-06-22
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The detection of slag in the existing uranium ore smelting plants is usually carried out by manual sampling and then sent to the laboratory for chemical detection and analysis, which takes a long time and cannot reflect the uranium content in the discharged slag in real time

Method used

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  • Method and device for continuously detecting uranium content in materials
  • Method and device for continuously detecting uranium content in materials
  • Method and device for continuously detecting uranium content in materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1 simulation experiment

[0054] First use the device for continuously detecting uranium content in materials of the present invention, manually load and discharge slag samples, and simulate continuous determination of uranium in slag. The average density of the slag is 2.7kg / L, and the ultimate thickness of the slag is 200mm after precise measurement. The detection channel 1 is a cylindrical table made of plastic, with a controllable discharge gate 11 below, and a detection component 2 is arranged on the inner wall of the middle section. The detection channel 1 has a diameter of 150 mm, and the distance between the probe 21 of the detection part 2 and the feeding port is 600 mm, and the distance from the discharging port is 400 mm. Around the probe 21 and on the wall of the detection channel 1, lead bricks with a thickness of 50mm and a height of 400mm are used as shielding.

[0055] The detection part 2 adopts FXY-214 dual-channel spectrometer, which is c...

Embodiment 2

[0058] Embodiment 2 field experiment

[0059] On the basis of Example 1, the test of automatic filling and discharging of FXY-222 three-channel spectrometer was carried out on site. The device for continuously detecting uranium content in materials of the present invention is directly installed on the production line, using FXY-222 spectrometer and digital calculator to measure. The measurement conditions are 164KeV-204KeV for channel I and 300KeV-370KeV for channel II; the K value is 1.66, and the measurement time is 100 seconds. A total of 208 samples were taken for physical and chemical comparison. In the case of low content, the error of chemical analysis itself is also very large. Therefore, the processed data is based on the average value of physical and chemical analysis. It can be seen from the data in the table that the relative error distribution curve conforms to Gaussian distribution, and its standard deviation is about 10%. The physical and chemical comparison o...

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Abstract

The invention discloses a method for continuously detecting the uranium content in materials. The method comprises the following steps: arranging a detection component for detecting Gama ray in a detection channel, arranging a limiting component to ensure that materials are filled in the detection channel and slowly flow, and ensuring that the detection component continuously detects gama ray emitted by the materials. The invention further provides a device adopting the method. The method and device can continuously detect the uranium content in the materials, realize real-time monitoring of the uranium content in the materials, and timely reflect production status and guide production and waste disposal.

Description

technical field [0001] The application relates to the technical field of detection equipment, in particular to a method and device for continuously detecting uranium content in materials. Background technique [0002] With the development of my country's nuclear industry, the amount of uranium mining is increasing day by day, and a large amount of uranium ore waste is also produced. Uranium mine waste slag still contains a certain amount of uranium, and random discharge will cause environmental pollution. Therefore, it is necessary to detect the uranium content in the slag and process the slag according to the detection results. [0003] The detection of slag in existing uranium ore smelting plants is usually performed by manual sampling and then sent to the laboratory for chemical detection and analysis, which takes a long time and cannot reflect the uranium content in the discharged slag in real time. Therefore, how to realize real-time detection of uranium in slag is a t...

Claims

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Application Information

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IPC IPC(8): G01N23/00
CPCG01N23/00
Inventor 胡凯光李广悦支用心钭洪福罗鑫蕫中林
Owner NANHUA UNIV
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