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| Development and Application of Accurate PCI Control Technology |
| KONG Fanshuo1,2,LI Binglai2，LIN Qinglin3 |
| 1. Ji’nan Iron and Steel Group Co., Ji’nan 250101, Shandong, China；2.School of Metallurgical and Ecdogical Engineering, University of Science and Technology, Beijing 100083, China; 3. Tianshi Data Record Equipment Co., Guangzhou 510730, Guangdong, China |
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Abstract PCI（pulverized coal injection） control system is dynamic with multiple inputs and singular output and thus with strong disturbance, nonlinear. The traditional control is of low precision and capability of self-adaptation. By use of neural network, an accurate PCI control system was developed and has been applied at Ji’nan Iron and Steel Co.. The results show that, the maximum related error of PCI rate was decreased from above 15% to below 2%, the standard error of relative error was reduced from 2.83% to 0.52%, the technical and economic indexes of BF were improved.
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Received: 01 January 1900
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2006, Vol. 41 