Stable furnace temperature is the basis of furnace running and low cost.The trend management of furnace tem-perature is conducive to stable furnace temperature and ensure the active furnace cylinder.Four classes of stable operation,uniform run material to stabilize the batch and gas flow,"platform+funnel"fabric matrix is by the depth of the funnel and the width of the platform to adjust the center and edge of the two streams of gas flow,so that the gas and ore fully contact to improve the gas utilization rate.It is necessary to calculate the coke load in advance of blast furnace shutdown,and reasona-ble shutdown material plays an important role in the stability of the furnace temperature,which can avoid overheating or cooling of the furnace temperature.Taking a number of measures to stabilize the ratio of ore to more than 20%can effective-ly reduce costs.
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