Scholarlink

<p>Real-time measurement of uranium ore grade on conveyor belts is critical for ore sorting, process optimization, and intelligent mine operation. In open-pit mines, however, blasting and heterogeneous loading cause the grade of conveyed material to fluctuate by several orders of magnitude, while the high belt speed places additional demands on both measurement range and accuracy. Single-detector systems cannot cover such a wide dynamic range, and existing multi-detector switching schemes are not designed for rapidly varying belt conditions. To address this limitation, we develop a gamma-spectrometric wide-range detection approach specifically tailored for conveyor-belt applications. A complete design framework is established, including detector selection, dynamic-range evaluation, and switching-point optimization. A new switching strategy is introduced that simultaneously considers measurement uncertainty and dead-time effects, enabling smooth transitions across detectors. Experiments show that the proposed dual-detector configuration achieves a continuous dynamic-range coverage of 12–53,475&#xa0;ppm, validating both the simulation-based design and the switching-point optimization method. The results demonstrate a practical pathway for wide-range, real-time uranium-grade measurement in mining environments.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Development of a wide-range belt scanner for uranium ore grade real-time measurement

  • 期刊论文

  • 发表日期：

    2026年5月12日

查看全文
  • Huan Qiu,
  • Xiongjie Zhang,
  • Chaofei Qin,
  • Yulong Liu,
  • Jinhui Qu,
  • Ning Chen,
  • Haitao Wang,
  • Dongyang Wang,
  • Junjie He,
  • Renbo Wang

摘要

Real-time measurement of uranium ore grade on conveyor belts is critical for ore sorting, process optimization, and intelligent mine operation. In open-pit mines, however, blasting and heterogeneous loading cause the grade of conveyed material to fluctuate by several orders of magnitude, while the high belt speed places additional demands on both measurement range and accuracy. Single-detector systems cannot cover such a wide dynamic range, and existing multi-detector switching schemes are not designed for rapidly varying belt conditions. To address this limitation, we develop a gamma-spectrometric wide-range detection approach specifically tailored for conveyor-belt applications. A complete design framework is established, including detector selection, dynamic-range evaluation, and switching-point optimization. A new switching strategy is introduced that simultaneously considers measurement uncertainty and dead-time effects, enabling smooth transitions across detectors. Experiments show that the proposed dual-detector configuration achieves a continuous dynamic-range coverage of 12–53,475 ppm, validating both the simulation-based design and the switching-point optimization method. The results demonstrate a practical pathway for wide-range, real-time uranium-grade measurement in mining environments.