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Atomic ore sorting system

A sorting system and radioactive technology, applied in sorting and other directions, can solve the problems of reducing the efficiency of ore sorting, slowing down the transmission speed of the conveyor belt, and short measurement time, so as to prolong the time of measuring radioactive intensity, improve accuracy, and prevent The effect of miscalculation

Active Publication Date: 2017-11-07
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem in the prior art is that the nuclear radiation detector is set at a fixed position relative to the conveyor belt, and the ore is only detected when the ore passes through the radiation detector. The measurement time is too short, and the measurement effect is not very satisfactory. If the conveyor belt The slowing down of the transmission speed reduces the efficiency of ore sorting
In addition, the reference value of radioactivity is calculated by measuring the volume. In the case of different ore densities, the reference value calculated by the preset calculation formula is not accurate

Method used

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  • Atomic ore sorting system
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Examples

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no. 2 example

[0033] Please refer to figure 2 , is a schematic composition diagram of another radioactive ore sorting system 200 provided by the embodiment of the present invention. Compared with the first embodiment, the radioactive ore sorting system 200 provided by the second embodiment also includes an air injection valve 60, which is connected with the processor 40, and the air injection valve 60 is used to respond to the control of the processor 40 to the The selected ore blows gas so that the ore to be sorted falls into different preset destinations according to different types. In the present embodiment, the radioactive ore sorting system 200 also includes a concentrate conveyor belt 70 and a tailings conveyor belt 80. When the processor 40 judges that the ore to be sorted is a concentrate, the air injection valve 60 is controlled to blow gas to the concentrate to remove the concentrate. The ore is blown onto the concentrate conveyor belt 70, and when the processor 40 judges that ...

no. 3 example

[0036] Please refer to image 3 , is a schematic diagram of the composition of the radioactive ore sorting system 300 provided by the embodiment of the present invention. Compared with the second embodiment, the radioactive ore sorting system 300 also includes a shielding plate 90, and the shielding plate 90 is arranged on two adjacent between measurement areas 211 . Due to the short distance between adjacent measurement areas 211 , the radiation between the ores to be sorted may interfere with each other, making the radioactive intensity detected by the nuclear radiation detector 30 inaccurate. In this third embodiment, the setting of the shielding plate 90 isolates the adjacent measurement areas 211 and prevents the mutual interference of adjacent ores, thereby improving the measurement accuracy of the nuclear radiation detector 30. As preferably, the shielding plate 90 for lead plates.

[0037] In addition, it has been found through research that when the nuclear radiatio...

no. 4 example

[0039] Please refer to Figure 4 , is a schematic diagram of the composition of the radioactive ore sorting system 400 provided by the embodiment of the present invention. The fourth embodiment is roughly the same as the third embodiment, the difference is that the radioactive ore sorting system 400 also includes an ore bin 410 and a vibration feeder. The feeder 420, the ore bin 410 is connected with the vibrating feeder 420, the vibrating feeder 420 is connected with the conveyor belt 10, the ore bin 410 is configured to store the ore to be sorted, and the vibrating feeder 420 is configured to put the ore in the ore bin The ore to be sorted is transported to the conveyor belt 10. In addition, the nuclear radiation detector 30 is equipped with a shielding tube 31 for shielding the interference of adjacent ores, and shielding the surrounding environment of the nuclear radiation detector 30 including natural background, dust and the like.

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Abstract

The invention provides an atomic ore sorting system. The atomic ore sorting system comprises a conveying belt, an annular rotary measuring table, nuclear radiation detectors, a processor and pressure sensors. The annular rotary measuring table comprises a hollow turntable; and the turntable can rotate around the center of the turntable. The nuclear radiation detectors and the processor are put in the turntable; the surface of the turntable is divided into multiple measurement areas; the nuclear radiation detectors are correspondingly arranged at the bottoms of all the measurement areas; and the pressure sensors are arranged on the surfaces of the measurement areas. Ores to be sorted can rotate on the turntable; and in the rotating process, the nuclear radiation detectors performs radioactive intensity measurement on the ores to be sorted, so that the time of the nuclear radiation detectors measuring radioactive intensity is prolonged, and the measurement accuracy of radioactive intensity is improved to prevent wrong judgment. Meanwhile, the masses of the ores to be sorted can be measured in the measurement areas on the turntable; radioactive intensity reference values of the ores are calculated through the masses; and for the ores with different densities, calculated results are more accurate.

Description

technical field [0001] The invention relates to the field of ore sorting, in particular to a radioactive ore sorting system. Background technique [0002] At present, valuable metals such as uranium, thorium, copper, iron, titanium, molybdenum, etc. are usually extracted from ores. Due to the uneven content of valuable metals in different ores, before the ore is refined, it is necessary to sort out the ores with higher valuable metal content, that is, concentrate, and for the ore with lower valuable metal content, that is, tailings , select Discard. Due to the different content of radioactive metals, the radioactivity of ores is different. At present, in ore sorting, the method of detecting the radioactivity of ores is mainly used to identify concentrates and tailings. The existing ore sorting equipment uses a conveyor belt to transport the ore to the sorter, and a radiation detector is installed at a certain position on the conveyor belt. When the ore passes through the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07C5/346B07C5/02B07C5/36
CPCB07C5/02B07C5/346B07C5/365
Inventor 王广西李丹刘丙岩赖万昌罗琼翟娟杨强
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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