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含能材料烘干工序静电监测有效性研究
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摘要
对含能材料烘干工序静电监测方式进行实验分析,确定监测的有效性。研究接料装置中静电电荷量与静电电位的关系。在烘干盘上和接料装置内分别安装静电电位计,监测不同流量下含能材料静电起电电位;采用静电电荷量和静电电位两种方式监测接料装置内物料的起电情况并进行对比分析。研究结果表明,烘干盘上物料的静电电位随着流量的变化而变化,而接料装置内物料的静电电位几乎与流量无关。静电电荷量与静电电位计两种方式监测到接料装置内的静电电荷量与静电电位成线性比例关系。仅在烘干盘上安装静电电位计的监测方式不能真实反映烘干工序的静电危险性,应采用在烘干盘及接料装置内分别安装静电电位或静电电荷量监测的方式,才能保证含能材料烘干工序静电监测的有效性、真实性。静电电荷量监测方式更便于安装并实现实时在线监测,静电电荷量与静电电位的关系式为静电电荷量安全阈值确定提供理论依据。
Analysis on the way of electrostatic monitoring for drying processes of energetic materials,determining the effectiveness of monitoring.Study on the relationship between electrostatic charge and electrostatic voltage in the receiving device.Electrostatic potentiometer were installed in the drying tray and receiving device to monitor electrostatic voltage of energetic materials under different mass flow.The electrostatic charge and the electrostatic potential of two kinds of methods were used to monitor the electrostatic of the material in the receiving device and the comparison analysis was carried out.The electrostatic voltage of the material on the drying plate changes with the mass flow.The electrostatic voltage of the material in the receiving device is almost independent of the mass flow.The electrostatic charge in the receiving device is linear proportional to the electrostatic voltage.The way of electrostatic voltage monitoring only installed in the drying tray can not reflect the risk of drying process electrostatic.In order to ensure the validity and authenticity of the electrostatic monitoring in the drying process,the way of electrostatic voltage and electrostatic charge monitoring can be used at the same time in the drying tray and the receiving device.
引文
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