Blast furnace molten iron silicon content four-classification trend prediction model establishing method and application
A blast furnace molten iron and forecasting model technology, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of inability to comprehensively forecast, only to forecast numerical values, and unable to predict in advance when abnormal furnace conditions will occur.
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Embodiment 1
[0159] This embodiment is in a steel factory 2650m 3 Blast furnace for experimental testing.
[0160] A method for establishing a four-category trend forecasting model for silicon content in molten iron of a blast furnace, specifically comprising the following steps:
[0161] 1) Collect historical data. The ironmaking process control and data collection are realized through the configuration software of the automation system. The automation system includes a blast furnace body, a feeding system, a hot blast stove system, and a coal injection system. Among them, the data from the blast furnace body mainly consist of relevant data such as furnace top pressure, hot air pressure, and furnace top temperature. The data from the hot blast stove system mainly include: blast furnace gas volume, air supply, furnace top temperature, flue temperature and other air supply related data. The data from the coal injection system mainly include: injection pressure, injection flow and other ...
Embodiment 2
[0174] This embodiment relates to a four-category trend forecasting method for blast furnace silicon content in molten iron using the four-category trend forecast model established in Example 1. Specifically, a set of variable data is selected as input variables and input to the forecast model. The output results of the forecast model are decoded to obtain the final silicon content change trend (the four-category trend forecast result of the silicon content in blast furnace hot metal).
[0175] Specifically, a total of 1166 sets of data were selected from 21:00 on January 9, 2013 to 10:00 on February 27, 2013, and processed using the data processing method described in Example 1. Among them, the change trend of the actual molten iron silicon content corresponding to 200 groups of test samples is as follows: Figure 5 shown by Figure 5 It can be seen that most of the change trends fall in the range of slight rise and slight decline, and only a small number of samples fall in ...
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