Ore component analysis device and method

Patent metadata

Field	Value
Publication number	US-11953455-B1
Application number	US-202318401182-A
Country	US
Kind code	B1
Filing date	Dec 29, 2023
Priority date	Jan 17, 2023
Publication date	Apr 9, 2024
Grant date	Apr 9, 2024

Abstract

An ore component analysis device and method are provided, the analysis device comprises: a sample containing device configured to place an ore sample to be detected; an excitation unit configured to output X-rays with continuously adjustable energy; a detector configured to detect the secondary X-rays; a signal processing unit configured to amplify, shape and classify the secondary X-rays to obtain counts and energy of the secondary X-rays; a data processing device comprising a processor configured to execute a storage module, a matching module, a count correction module, a peak seeking module, a calculation module and a content correction module stored in a memory, so as to obtain elements and contents thereof in the ore sample. The present application can be directly applied to production line for qualitative and quantitative analysis of ore components.

First claim

The invention claimed is:

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 P i of an element i is expressed as:

P
i

=

I
i

∑

I
i

=

A
i

/

(

ε
i

×

ε
j

)

∑

A
i

/

(

ε
i

×

ε
j

)

,

(
1
)

where I i is an intensity of the element i, A i is the peak area of the element i, ε i is the occurrence probability of the secondary X-rays of the element i, and ε j 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.

2. The ore component analysis device according to claim 1 , wherein an included angle formed by the excitation unit, the sample containing device and the detector is 45° to 135°.

3. The ore component analysis device according to claim 1 , wherein the processor is further configured to execute a display module and an Internet of Things module stored in the memory; the display module and the Internet of Things module are connected to the content correction module, respectively; the display module is configured to display the final content of each element in the ore sample; and, the Internet of Things module is configured for connection to an external data monitoring platform.

4. The ore component analysis device according to claim 1 , wherein the sample containing device comprises:
a rotating member, above which the excitation unit and the detector are located;
a sample container, which is placed in the rotating member and configured to place the ore sample to be detected; and
a driving member, having an output shaft which is coupled to a bottom of the rotating member and configured to drive the rotating member to rotate.

5. The ore component analysis device according to claim 4 , wherein the processor is further configured to execute a control module stored in the memory; the control module is connected to the driving member and configured to control the driving member to drive the rotating member rotate at a set angle α every set time T, so that the detector performs multi-point detection on the ore sample to be detected to obtain an average value.

6. The ore component analysis device according to claim 1 , wherein the excitation unit comprises:
a high-voltage power source, which is configured to output high-voltage power with different voltages; and
a controllable X-ray excitation source, which is electrically connected to the high-voltage power source and configured to output the X-rays with continuously adjustable energy according to the different voltages output by the high-voltage power source, so that the X-rays interact with the ore sample to be detected and excite the ore sample to generate the secondary X-rays.

7. The ore component analysis device according to claim 1 , wherein the signal processing unit comprises:
a signal amplifier, which is connected to the detector and configured to amplify and shape the secondary X-rays detected by the detector; and
a multichannel pulse amplitude analyzer, which is connected to the signal amplifi

Assignees

• Univ Shandong
• Weihai Research Institute Of Industrial Technology Of Shandong Univ

Inventors

• Liu Chen
• Wang Shouyu

Classifications

• G01N23/223 Primary

  by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence · CPC title

• G01N33/24

  Earth materials (G01N33/42 takes precedence) · CPC title

• G01N2223/076

  X-ray fluorescence · CPC title

• G01N2223/1016

  X-ray · CPC title

• G01N2223/206

  sources operating at different energy levels · CPC title