通过对球磨机的轴承振动信号、球磨机进出口差压、电流信号的综合分析,提出了便携式球磨机优化监测系统的软件和硬件设计方案,实现了对球磨机料位的在线监测。该系统还能对断煤、堵磨、球磨机着火和爆炸、一次风管堵塞等故障工况在线进行识别和报警。经在某电厂的完整工况测试与实践证明,本系统设计的软硬件完全能适应便携式球磨机监测系统的要求,特别适合于现场的测试与实验。 Through the comprehensive analysis of bearing vibration signal of ball mill, differential pressure of inlet and outlet of ball mill and current signal, the software and hardware design scheme of portable ball mill optimization monitoring system is put forward, and the on-line monitoring of ball mill material level is realized. The system is also capable of identifying and alarming on-line fault conditions such as coal-cutting, plug-in grinding, ball mill ignition and explosion, primary air duct blockage, and the like. The complete condition test and practice in a power plant prove that the software and hardware designed by this system can fully adapt to the requirements of the portable ball mill monitoring system and is particularly suitable for field test and experiment.