Title :
Stationarity and normality testing for silicon content in molten iron of blast furnace
Author :
Luo, Shihua ; Zhou, Bin ; Huang, Jian
Author_Institution :
Sch. of Inf. Manage., Jiangxi Univ. of Finance & Econ., Nanchang, China
Abstract :
As [Si] time series of No. 7 BF at Handan Iron and Steel Group Co., No. 1 BF at Laiwu Iron and Steel Group Co. and No.6 BF at Linfen Iron and Steel Group Co. to be sample space. In a significant level of α = 0.05 , temperature fluctuations of three BF reject stability hypothesis based on runs test. In a significant level of α = 0.01, such fluctuations reject the normal distribution hypothesis and show a significant skewed to the right, peak and fat tail features based on D test, skewness test and kurtosis test. The result is helpful for modeling intelligent control of BF.
Keywords :
blast furnaces; iron; materials testing; normal distribution; silicon; steel industry; steel manufacture; time series; Handan Iron and Steel Group Co.; Laiwu Iron and Steel Group Co; Linfen Iron and Steel Group Co; Si; blast furnace; kurtosis test; molten iron; normal distribution hypothesis; normality testing; silicon content; skewness test; stationarity testing; temperature fluctuation; time series; Biological system modeling; Blast furnaces; Economics; Iron; Silicon; Steel; blast furnace ironmaking; normality; silicon content in hot metal; stationarity;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2010 8th World Congress on
Conference_Location :
Jinan
Print_ISBN :
978-1-4244-6712-9
DOI :
10.1109/WCICA.2010.5554966
