Design of detection and analysis system of flocculating sedimentation of thickener
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摘要: 针对浓缩机药剂添加自动化闭环控制需求，设计了一种浓缩机絮凝沉降检测分析系统。当浓缩机中煤泥水浓度低于5%时，该系统采用CN141浊度计检测絮凝沉降效果，浊度计直接输出4～20 mA的电流信号送微处理器处理；当煤泥水浓度为5%～35%时，该系统采用微电容阵列传感器检测絮凝沉降效果，检测结果经放大滤波后送微处理器处理。实际应用表明，该系统能够准确、及时地检测出浓缩机絮凝沉降效果，实现了浓缩机絮凝剂添加的闭环控制。Abstract: In view of requirement of automatic closed-loop control for agent addition of thickener, a detection and analysis system of flocculating sedimentation of thickener was designed. The system uses CN141 turbidimeter to detect effect of flocculating sedimentation when concentration of slime water is less than 5%, and the turbidimeter outputs 4～20 mA current signal to microprocessor directly. The system uses micro-capacitor array sensor to detect effect of flocculating sedimentation when concentration of slime water is 5%～35%, the detected result is sent to microprocessor after amplified and filtered. The actual application shows that the system can detect effect of flocculating sedimentation of thickener accurately and real-timely and realizes closed-loop control of flocculant addition of thickener.
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期刊类型引用(7)
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