The blast furnace circulating water pump is the most important equipment of the blast furnace circulating water system.Once the blast furnace circulating water pump breaks down,it will directly lead to air reduction of the blast furnace,or even lead to the shutdown of the blast fur-nace.In the design selection of the blast furnace circulating water pump,if the design margin is too large,water supply pressure and flow rate can only be controlled by controlling the pump outlet valve after commissioning,and long-term control of the valve operation is not only uneconomical,but also lead to equipment vibration,noise,and cannot guarantee the stable operation of the equip-ment.By cutting the impeller of the water pump and running the outlet valve fully open,it can en-sure the smooth operation of the equipment,reduce the power consumption of the water pumps and reduce the failure rate.
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