US 11,953,455 B1
Ore component analysis device and method
Chen Liu, Weihai (CN); and Shouyu Wang, Weihai (CN)
Assigned to SHANDONG UNIVERSITY, Weihai (CN)
Filed by SHANDONG UNIVERSITY, Weihai (CN); and WEIHAI RESEARCH INSTITUTE OF INDUSTRIAL TECHNOLOGY OF SHANDONG UNIVERSITY, Weihai (CN)
Filed on Dec. 29, 2023, as Appl. No. 18/401,182.
Application 18/401,182 is a continuation in part of application No. PCT/CN2023/072483, filed on Jan. 17, 2023.
Int. Cl. G01N 23/223 (2006.01); G01N 33/24 (2006.01)
CPC G01N 23/223 (2013.01) [G01N 33/24 (2013.01); G01N 2223/076 (2013.01); G01N 2223/1016 (2013.01); G01N 2223/206 (2013.01); G01N 2223/303 (2013.01); G01N 2223/3037 (2013.01); G01N 2223/304 (2013.01); G01N 2223/309 (2013.01); G01N 2223/3306 (2013.01); G01N 2223/616 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An ore component analysis device, comprising:
a sample containing device, which is configured to place an ore sample to be detected;
an excitation unit, which is arranged above the sample containing device and configured to output X-rays with continuously adjustable energy, so that the X-rays interact with the ore sample to be detected and excite the ore sample to generate secondary X-rays;
a detector, which is arranged above the sample containing device and configured to detect the secondary X-rays;
a signal processing unit, which is connected to the detector and configured to amplify, shape and classify the secondary X-rays detected by the detector to obtain counts and energy of the secondary X-rays; and
a data processing device, which is connected to the signal processing unit and configured to analyze and calculate data processed by the signal processing unit, wherein the data processing device comprises a processor and a memory, and the processor is configured to execute following program modules stored in the memory:
a storage module, which is configured to store known elements and energy and occurrence probability of X-rays corresponding to the elements;
a matching module, which is configured to match the energy of the secondary X-rays with the energy of the X-rays corresponding to the known elements stored in the storage module so as to determine elements corresponding to the secondary X-rays and obtain occurrence probability of the secondary X-rays;
a count correction module, which is configured to correct the counts of the secondary X-rays according to attenuation efficiency of the secondary X-rays in the air to obtain a corrected energy spectrum of the secondary X-rays;
a peak seeking module, which seeks peaks on the corrected energy spectrum of the secondary X-rays and calculates peak area of each peak;
a calculation module, which calculates content of each element in the ore sample according to the peak area and the occurrence probability of the secondary X-rays, where the content Pi of an element i is expressed as:

OG Complex Work Unit Math
where Ii is an intensity of the element i, Ai is the peak area of the element i, εi is the occurrence probability of the secondary X-rays of the element i, and εj is intrinsic detection efficiency of the detector for the secondary X-rays of the element i; and
a content correction module, which is configured to perform matrix effect correction on the content of each element calculated by the calculation module by using a measurement result of a standard ore sample to obtain final content of each element in the ore sample.