变频节能技术在山煤国际澄蓉选煤厂的应用

Application of frequency conversion technology for energy saving in Chengrong coal preparation plant

随着国家对环保、节能降耗要求的提高,以重介工艺为主的选煤厂大力响应国家的环保政策,实现节能降耗。山煤国际能源澄蓉选煤厂对合格介质泵304(450 kW)、精磁泵328(200 kW)、中矸泵(90 kW)、浮选入料泵402(185 kW)、循环水泵604(200 kW)等大功率电机(占全厂总容量33.3%)采用美国圣诺变频器进行调控,仅电能一项每年就为公司节省了近200万元。采用变频器来控制大功率的泵类设备,还可以降低电机的噪音污染、减少管路阀门的机械磨损、延长泵的使用寿命,节省了人力和物力。

A great many of coal preparation plants adopting dense-medium separation process have been trying their best to reduce energy consumption and protect environment in order to meet the requirements of national standards. Adopting sinusk transducer Chengrong coal preparation plant which belongs to Shanxi Coal International Energy Company adjusts and controls qualified dense-medium pump 304, high-precision magnetic pump 328, gangue transportation pump, feed pump 402 in flotation process, water circulating pump 604, whose power is 450 kW,200 kW, 90 kW, 185 kW,200 kW respectively. The sum of these equipments＂ capacity account for 33.3 percent of the total capcity. The transducer helps to save as much as two million yuan every year. Since these high-power equipments are adjusted and controlled by the transducer, both sound pollution and mechanical wear of pipeline pumps reduce. The transducer not only lengthens the useful life of pipelines, also saves the manpower and material resources.