Patent ID: 11953455
Assignee: SHANDONG UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. An ore component analysis method, which performs analysis by using the ore component analysis device according to claim 1, comprising following steps of:
S1: emitting X-rays with continuously adjustable energy to an ore sample to be detected, so that the X-rays with different energy interact with the ore sample to be detected and excite the ore sample to generate secondary X-rays with different energy;
S2: detecting the secondary X-rays, amplifying, shaping and classifying the secondary X-rays to obtain counts and energy of the secondary X-rays with different energy;
S3: matching the energy of the secondary X-rays with energy of X-rays corresponding to known elements to determine elements corresponding to the secondary X-rays and obtain occurrence probability of the secondary X-rays;
S4: correcting 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, seeking peaks on the corrected energy spectrum of the secondary X-rays, and calculating peak area of each peak;
S5: calculating 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:, P
       i
      
      =
      
       
        
         I
         i
        
        
         ∑
          
         
          I
          i
         
        
       
       =
       
        
         
          A
          i
         
         /
         
          (
          
           
            ε
            i
           
           ×
           
            ε
            j
           
          
          )
         
        
        
         ∑
         
          
           A
           i
          
          /
          
           (
           
            
             ε
             i
            
            ×
            
             ε
             j
            
           
           )
          
         
        
       
      
     
     ,
    
   
   
    
     (
     1
     )
    
   
  
 

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 the content of each element is calculated according to the above formula;
S6: performing matrix effect correction on the calculated content of each element by using a measurement result of a standard ore sample to obtain final content of each element in the ore sample.