Abstract:A mathematical model based on friction work principle was established to predict the chute wear appearance and guide the chute design and operation. The chute wear calculation formula based on friction work principle was developed, the burden motion in the chute was analyzed and the parameters in the formula were thus determined. The model accuracy was verified by industrial test, and the effects of chute structural and burden distribution parameters on the chute wear were further discussed. Results show that in order to decrease the chute wear, it is helpful to shorten the burden falling height, and the chute inner diameter should be slightly larger than the feeding spout diameter. In addition, to extend the charging time for each batch and decrease the angles of chute inclination by increasing the chute length reasonably are beneficial to improve the chute abrasion resistance.
马财生,任廷志. 基于摩擦功原理的高炉布料溜槽磨损分析[J]. 钢铁, 2017, 52(1): 19-26.
MA Cai-sheng,REN Ting-zhi. Analysis on wear of chute in blast furnace with bell-less top based on friction work principle. Iron and Steel, 2017, 52(1): 19-26.
Radhakrishnan V R,Ram K M.Mathematical Model for Predictive Control of the Bell-Less Top Charging System of a Blast Furnace[J].Journal of Process Control,2001,11(5):565.
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Radhakrishnan V R,Ram K M.Mathematical Model for Predictive Control of the Bell-Less Top Charging System of a Blast Furnace[J].Journal of Process Control,2001,11(5):565.