摘要
综放开采煤矸自动识别是实现综放开采技术自动化的关键,为此,提出了采用双能γ射线技术对放顶煤煤矸混合体中的矸石含量进行测定识别。分析了双能γ射线穿过煤矸混合体时的衰减规律,建立了煤矸混合体灰分与含矸量间的量化关系,通过实验的方法对双能γ射线煤矸识别的灰分、含矸率等相关参数进行了实验分析,建立了两者之间的相关关系,同时对仪器响应的实时性进行了验证。结果表明,利用双能γ射线技术对放顶煤煤矸混合流中矸石含量进行实时测定识别是可行的。
The key to realize the automatic fully mechanized top coal caving mining technology is the automatic detection of coal and gangue. Therefore, detection of gangue rate in coal gangue mixture of drawing opening by using of the dual-energyγ-ray method has been proposed and the attenuation law has been analyzed when dual-energyγ-ray crosses the coal gangue mixture. Quantitative relationship is established between gangue rate and ash content. The parameters of the gangue rate and ash content by experimental analysis has been studied and their correlation has been built. Real-time response property of the equipment has been tested in the experiment. The results show that dual-energyγ-ray method is feasible for real-time detecting the gangue rate of coal gangue mixture.
出处
《采矿与安全工程学报》
EI
北大核心
2014年第4期532-536,共5页
Journal of Mining & Safety Engineering
基金
中央高校基本科研业务费专项资金项目(2010QNA32)
江苏高校优势学科建设工程项目
江苏省“333”高层次人才培养工程专项基金项目
“泰山学者”建设工程专项经费项目
江苏省普通高校研究生科研创新计划项目(CXZZ13_0947)
关键词
煤矸识别
综放开采
双能γ射线技术
含矸率
coal gangue detection
fully mechanized top coal caving mining
dual-energyγ-ray me-thod
gangue rate
