煤粉质量流量实时监测系统

煤粉质量流量监测系统主要包括现场的静电变送器和控制室内的内嵌A／D卡的上位机数据采集管理系统两部分．该系统的特点是利用气力输送粉体产生静电现象实现了煤粉质量流量的测量，由静电变送器将管道内煤粉的浓度和速度信息以静电信号的形式提取，然后由高性能A／D卡及计算机系统对静电信号进行采集、滤波、算法处理，最终实现了对管道内煤粉的瞬时质量流量和累计质量流量实时监测．

Study on real-time monitoring system of pulverized coal mass flow

The monitoring system of the pulverized coal mass flow includes two parts: electrostatic transmitter in the field and data acquisition and management system in the control room.The measuring object of the system is pulverized coal pneumatically conveyed in the larger caliber pipeline. The main feature of the system is that the mass flow is measured by means of electrostatic phenomenon generated in transportation. The electrostatic transmitter extracts concentration signal and velocity signal, and electrostatic signal is acquired, filtered and processed by A/D board and computer system. finally, the result of instantaneous mass flow and accumulative mass flow can be obtained.