Simulation on Blast Volume Distribution of Blast Furnace Tuyeres with Double Hot Blast Main Structure
Wenpeng LIU,Yan JIN*,Xiaosen DONG
Key Lab for Ferrous Metallurgy and Resources Utilization, Ministry of Education,
Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
Abstract：According to the requirement of blast furnace smelting, the distribution of blast volume was changed directly by using the tuyeres with different diameters or blocking one tuyere, which further improve the smelting environment. The numerical simulation method was used to study the blast volume distribution of the 3200 m3 blast furnace with double hot blast main structure of hot-blast system in a steel work, by establishing fluid dynamics model to simulate the flow field of the hot blast system from different aspects. The results showed that the asymmetry of blast volume distribution increased when blocking single or double tuyeres, but the volume difference between each tuyere decreased when plugging the two symmetrical tuyeres on the two sides of the entrance, the inhomogeneity was only 4.02%, less about 10% than non-blocking tuyere. When reducing diameter of single tuyere 10 mm, the distribution of blast volume was basically unchanged, and it had a significant effect only to reduced tuyere itself and the tuyere with the farthest distance from the entrance, and heterogeneity increased significantly. Reducing the diameter of one tuyere with the farthest distance from the entrance, lead the largest volume variation of 21.57% between each tuyere, which was about 4 times as normal condition.
刘文鹏 金焱 董晓森. 高炉双热风总管结构的风口风量分布模拟[J]. 过程工程学报, 2017, 17(6): 1148-1155.
Wenpeng LIU Yan JIN Xiaosen DONG. Simulation on Blast Volume Distribution of Blast Furnace Tuyeres with Double Hot Blast Main Structure. Chin. J. Process Eng., 2017, 17(6): 1148-1155.
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2017, Vol. 17 
