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γ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。
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.
出处
《传感技术学报》
CAS
CSCD
2003年第4期442-446,共5页
Chinese Journal of Sensors and Actuators
基金
国家自然科学基金资助项目 (5 0 2 74 0 4 9)
