基于电荷感应法的金属粉尘浓度检测技术

发布时间：2019-07-14 20:59

【摘要】：为实现煤矿井下金属粉尘浓度的实时连续检测,预警金属粉尘爆炸事故,基于金属粉尘的静电特性研究了金属粉尘浓度的连续检测技术,剖析了基于电荷感应法的粉尘浓度检测技术基本原理,设计了电荷感应法的检测机构与方式,完成了微弱电荷信号的提取电路和预警功能的设计。利用基于电荷感应法的传感器样机对金属粉尘浓度进行3个月的测试试验,试验结果证明了整个试验周期内,其检测误差均小于10%,基于电荷感应法的粉尘浓度检测技术能够适用于金属粉尘的实时连续长时间的在线检测。
[Abstract]:In order to realize the real-time continuous detection of metal dust concentration in coal mine and warn the metal dust explosion accident, the continuous detection technology of metal dust concentration is studied based on the electrostatic characteristics of metal dust, the basic principle of dust concentration detection technology based on charge induction method is analyzed, the detection mechanism and mode of charge induction method are designed, and the extraction circuit and early warning function of weak charge signal are completed. The sensor prototype based on charge induction method is used to test the concentration of metal dust for three months. the test results show that the detection error is less than 10% in the whole test cycle. The dust concentration detection technology based on charge induction method can be applied to the real-time continuous on-line detection of metal dust.
【作者单位】： 中煤科工集团重庆研究院有限公司;
【基金】：国家重点研发计划资助项目(2016YFF0102801,2016YFC0801703)
【分类号】：TD714.3
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本文编号：2514516