黄金科学技术 ›› 2021, Vol. 29 ›› Issue (1): 129-135.doi: 10.11872/j.issn.1005-2518.2021.01.059
摘要:
梅山铁矿通风系统15 台主通风机总装机容量为2 730 kW,全天满负荷运行实耗功率为1 940.76 kW,每年通风成本高达1 445.09万元,通风风量及能耗浪费严重。从矿井风量的“供需平衡”理论出发,根据电机学和流体力学理论中频率、转速和风量之间的关系式,精确计算出满足3个时段矿井需风量时各主通风机的实际运行频率,然后通过远程控制系统对各主通风机进行精确调频,按需通风。系统运行正常后实际风量能够满足3个时段所需风量的要求,各时段实耗功率分别为1 093.28 kW、1 385.06 kW和1 786.38 kW,15台主通风机每年可节省通风成本386.59万元,解决了主通风机满负荷运行造成的风量和能耗浪费等问题。
中图分类号:
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