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Laser-induced breakdown spectroscopic (LIBS) intelligent sorting method and apparatus for ore

A laser-induced breakdown and ore technology, which is applied in the direction of material excitation analysis, material analysis and sorting through optical means, can solve problems such as difficult to achieve trace and precise quantitative analysis, and achieve the effect of improving taste and reducing costs

Inactive Publication Date: 2014-05-28
王宏
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Problems solved by technology

In this way, the traditional LIBS needs to use the integration delay in the detection system to avoid the influence of the continuous spectrum, but due to the different types and shapes of the measured samples, the duration of the continuous spectrum is also different, so the traditional LIBS technology is often affected by laser scattering and It is difficult to achieve trace and precise quantitative analysis due to the influence of continuum

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  • Laser-induced breakdown spectroscopic (LIBS) intelligent sorting method and apparatus for ore
  • Laser-induced breakdown spectroscopic (LIBS) intelligent sorting method and apparatus for ore
  • Laser-induced breakdown spectroscopic (LIBS) intelligent sorting method and apparatus for ore

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Embodiment Construction

[0026] Laser-induced breakdown spectrum ore intelligent sorting equipment, including ore conveying equipment 1, feeding bin 2, crusher 3, vibrating feeder 4, vibrating launder 5, LIBS sorting system 6, ore separation mechanism 7, concentrate The receiving tank 8 and the tailings receiving tank 9, wherein the LIBS sorting system 6 includes an ultrashort pulse laser 61, a miniature spectrometer 62, an optical fiber guidance system 63, a control and data processing and display module 64, and a battery module 65; wherein the ultrashort pulse laser 61 is a sub-nanosecond laser, and the spectroscopic and detection system 62 is a miniature spectrometer.

[0027] The LIBS sorting system 6 uses a high repetition rate ultrashort pulse laser 61 to generate a certain intensity of plasma on the surface of the material, thereby obtaining a spectral signal with a high signal-to-noise ratio; and the micro-spectrometer 62 achieves a high signal-to-noise ratio for a specific band The analysis a...

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Abstract

The invention belongs to the technical field of ore sorting and relates to an LIBS intelligent sorting apparatus for ore. The apparatus comprises an ore conveying device (1), a feed bin (2), a crusher (3), a vibrator feeder (4), a vibration launder (5), an LIBS sorting system (6), an ore separating mechanism (7), a concentrate catch trough (8) and a mine tailing catch trough. The invention further provides a method for intelligent sorting by using the apparatus. The invention has the following beneficial effects: a grade threshold for separation of a concentrate and mine tailings can be set according to demands of users and can be adjusted at any time in the process of screening, and establishment of a calibration curve does not need considerable ore as samples any longer; the grade of selected ore is increased, a great amount of waste stone is abandoned, processing cost of downstream procedures (processing, grinding and flotation) in the mining industry is substantially reduced, energy is saved, consumption is reduced, and cost of mine enterprises is substantially reduced.

Description

technical field [0001] The invention belongs to the technical field of ore sorting, and relates to a laser-induced breakdown spectrum intelligent sorting method and equipment for ore, which is suitable for measuring and synchronously sorting the metal content in various ores. Background technique [0002] As stated in the "Twelfth Five-Year Plan" of the National Waste Recycling Science and Technology Special Project, my country's rapid economic development has made remarkable achievements, but it has also paid the price of resources and the environment. Scrap metal and electronic appliances, industrial solid waste, construction waste, and domestic waste The annual production of bulk waste such as sludge and agricultural and forestry residues exceeds 4 billion tons, the total amount of tailings accumulation reaches about 8 billion tons, and there are nearly 20,000 large tailings ponds. Therefore, in realizing harmless disposal and reducing pollutants At the same time of dischar...

Claims

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Application Information

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IPC IPC(8): B02C21/00B02C23/08B07C5/34G01N21/63
CPCB07C5/3425B07C2501/0018G01N21/718G01N21/85G01N2021/8592
Inventor 王宏何景云宋敏政徐保伟徐卫星
Owner 王宏
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