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Investigation of coal ash content measurement mechanism using X-ray transmission based on spontaneous stacking density and uniform thickness.

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Title: Investigation of coal ash content measurement mechanism using X-ray transmission based on spontaneous stacking density and uniform thickness.
Authors: Lv, Wenbao1,2 (AUTHOR) wenbaolv@126.com, Cao, Haoqi1 (AUTHOR), Ji, Mingqiang1 (AUTHOR)
Source: International Journal of Coal Preparation & Utilization. 2026, Vol. 46 Issue 5, p1119-1134. 16p.
Subject Terms: *Coal ash, *X-ray absorption, *Measurement-model comparison, *Statistical reliability, *Thickness measurement, *Radiation absorption, *Montmorillonite
Abstract: Aiming to address the limitations of high cost, large measurement error, and low accuracy in existing online ash content detectors, this paper presents a new approach for measuring coal ash content using X-ray transmission. Through a systematic investigation of thickness attenuation characteristics, the optimal sample thickness was determined under controlled experimental conditions. Based on the theory of radiation attenuation, the fundamental principle of equal thickness X-ray transmission analysis was derived, and an online measurement model for equal thickness coal ash content was constructed. Through simulation, it is known that the model is based on X-ray attenuation and is predominantly governed by the absorption process of X-rays passing through the material. Based on experimental findings, a mathematical model for ash content measurement was developed for coal samples containing quartz and montmorillonite. The R2 values obtained after model fitting were 0.98499 and 0.999, respectively, for samples with ash content ranging from 9.00% to 18.00%. Test samples containing quartz and montmorillonite exhibited minimal errors in ash content measurement. The maximum, minimum, and average errors were all within 0.50%, demonstrating the high accuracy of the measurement method, which aligns well with the requirements of daily production. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 193489578
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Investigation of coal ash content measurement mechanism using X-ray transmission based on spontaneous stacking density and uniform thickness.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Lv%2C+Wenbao%22">Lv, Wenbao</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> wenbaolv@126.com</i><br /><searchLink fieldCode="AR" term="%22Cao%2C+Haoqi%22">Cao, Haoqi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ji%2C+Mingqiang%22">Ji, Mingqiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Coal+Preparation+%26+Utilization%22">International Journal of Coal Preparation & Utilization</searchLink>. 2026, Vol. 46 Issue 5, p1119-1134. 16p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Coal+ash%22">Coal ash</searchLink><br />*<searchLink fieldCode="DE" term="%22X-ray+absorption%22">X-ray absorption</searchLink><br />*<searchLink fieldCode="DE" term="%22Measurement-model+comparison%22">Measurement-model comparison</searchLink><br />*<searchLink fieldCode="DE" term="%22Statistical+reliability%22">Statistical reliability</searchLink><br />*<searchLink fieldCode="DE" term="%22Thickness+measurement%22">Thickness measurement</searchLink><br />*<searchLink fieldCode="DE" term="%22Radiation+absorption%22">Radiation absorption</searchLink><br />*<searchLink fieldCode="DE" term="%22Montmorillonite%22">Montmorillonite</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Aiming to address the limitations of high cost, large measurement error, and low accuracy in existing online ash content detectors, this paper presents a new approach for measuring coal ash content using X-ray transmission. Through a systematic investigation of thickness attenuation characteristics, the optimal sample thickness was determined under controlled experimental conditions. Based on the theory of radiation attenuation, the fundamental principle of equal thickness X-ray transmission analysis was derived, and an online measurement model for equal thickness coal ash content was constructed. Through simulation, it is known that the model is based on X-ray attenuation and is predominantly governed by the absorption process of X-rays passing through the material. Based on experimental findings, a mathematical model for ash content measurement was developed for coal samples containing quartz and montmorillonite. The R2 values obtained after model fitting were 0.98499 and 0.999, respectively, for samples with ash content ranging from 9.00% to 18.00%. Test samples containing quartz and montmorillonite exhibited minimal errors in ash content measurement. The maximum, minimum, and average errors were all within 0.50%, demonstrating the high accuracy of the measurement method, which aligns well with the requirements of daily production. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/19392699.2025.2492716
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 1119
    Subjects:
      – SubjectFull: Coal ash
        Type: general
      – SubjectFull: X-ray absorption
        Type: general
      – SubjectFull: Measurement-model comparison
        Type: general
      – SubjectFull: Statistical reliability
        Type: general
      – SubjectFull: Thickness measurement
        Type: general
      – SubjectFull: Radiation absorption
        Type: general
      – SubjectFull: Montmorillonite
        Type: general
    Titles:
      – TitleFull: Investigation of coal ash content measurement mechanism using X-ray transmission based on spontaneous stacking density and uniform thickness.
        Type: main
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          Name:
            NameFull: Lv, Wenbao
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            NameFull: Cao, Haoqi
      – PersonEntity:
          Name:
            NameFull: Ji, Mingqiang
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 05
              Text: 2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 19392699
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            – Type: volume
              Value: 46
            – Type: issue
              Value: 5
          Titles:
            – TitleFull: International Journal of Coal Preparation & Utilization
              Type: main
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