根据本钢拟建566.5 m2烧结机和5号高炉大修改造存在时间差,新烧结机投产后2~3年内不能满负荷生产的情况,从满足生产需求和节能降耗的角度分析了其主抽风机采用变频运行的优越性。结果认为,采用变频运行比软启工频运行多投入的费用不到两年即可收回,而且还有利于降低风机噪声,延长设备寿命,减少维修及费用,提高电网功率因数。 According to Benxi Steel 566.5 m2 sintering machine and No. 5 blast furnace overhaul there is a difference in time, the new sintering machine put into operation within 2 to 3 years can not be fully loaded with production from the perspective of meeting the production needs and energy saving analysis of the main exhaust fan Advantage of frequency conversion operation. The results show that the use of frequency conversion operation than the soft start frequency operation of more investment costs less than two years to recover, but also help to reduce fan noise, extend equipment life, reduce maintenance and costs, improve grid power factor.