| 自然??射线方法检测放顶煤开采中的煤矸混合度研究 |
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| 引用本文： | 王增才,张秀娟,张怀新,王志刚.自然??射线方法检测放顶煤开采中的煤矸混合度研究[J].传感技术学报,2003,16(4):442-446. |
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| 作者姓名： | 王增才 张秀娟 张怀新 王志刚 |
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| 作者单位： | 1. 山东科技大学动控学院,山东,济南,250031
2. 兖矿集团技术研究院,山东,邹城,271000 |
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| 基金项目： | 国家自然科学基金资助项目 (5 0 2 74 0 4 9) |
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| 摘 要： | 根据煤与矸石中的自然γ射线放射性含量具有显著差异这一物理特性，提出了利用煤与矸石中的自然γ射线的差异来检测放顶煤过程中煤、矸混合度的方法。推导出煤矸混合体中的矸石含量与检测仪器自然7射线计数率的数学关系。分析了检测仪器探头在液压支架尾梁上的合理安装方式及安装位置。地面模拟采煤工作面的实验数据表明煤矸混合度检测方法是可行和可靠的。
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| 关 键 词： | 放顶煤开采 煤矸混合度 自然γ射线法 自动识别 矸石 |
| 文章编号： | 1004-1699(2003)04-0442-05 |
| 修稿时间： | 2003年5月19日 |
The Research on Detection of Rock Content in Coal Rock Mixture
in Top Coal Caving by Natural Gamma Ray |
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| WANG Zeng??cai,ZHANG Xiu??juan,ZHANG Huai??xin,WANG Zhi??gang.The Research on Detection of Rock Content in Coal Rock Mixture
in Top Coal Caving by Natural Gamma Ray[J].Journal of Transduction Technology,2003,16(4):442-446. |
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| Authors: | WANG Zeng??cai ZHANG Xiu??juan ZHANG Huai??xin WANG Zhi??gang |
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| Affiliation: | 1. Shandong University of Science and Technology , Ji??nan 250031, China;
2. Research Center of Yanzhou Coal Mining Group , Zoucheng Shandong 271000, China |
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| Abstract: | Based on the physical characteristic of content of radiation elements in coal different from that in rock,and from the difference of natural r-ray intensity between coal and rock a detection method for rock content in coal rock mixture in standing top coal was put forward. A mathematical relation of rock content in coal rock mixture with the count rate of the natural gamma rays is developed, the rational fixing location and fixing manner of detector for detecting natural gamma ray in tail canopy of hydraulic support is analyzed. The feasibility and the reliability of detection for rock content in coal rock mixture standing in top coal caving by natural gamma ray are verified with experiment data by simulation experiment system. |
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| Keywords: | top coal caving rock content in coal rock mixture natural gamma rays detection |
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