Prediction of Ash Accumulation in Filter Screen of Furnace Cooling Fan Based on LSTM
The cooling fan for the furnace is used for temperature control during the continuous annealing unit's strip steel production process.The cold air sucked in from the filter is blown to the surface of the strip steel and then discharged.The heat of the strip steel is carried away by the circulating air,causing the strip steel to drop to a certain temperature.If the filter screen accumulates dust,it will affect the heat transfer efficiency and even cause quality problems with the strip steel.Moreover,the dust accumulation on the filter screen is not easily detected,and abnormalities often occur during the production process.To solve the problem of difficult identification of dust accumulation in fan filters,a predictive method for dust accumulation in furnace cooling fan filters based on LSTM is proposed by comprehensively analyzing the temporal characteristics of fault current signals during dust accumulation.The experimental results show that the LSTM model can effectively predict the dust accumulation status of the fan filter screen,efficiently judge the evolution trend of the dust accumulation in the filter screen,and avoid interference caused by unit interlocking to reduce the output power of the fan due to certain sudden faults.It has certain engineering practicality.
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