کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
648973 | 1457202 | 2009 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The new technology and the partial thermotechnical computation for air-cooled blast furnace tuyere The new technology and the partial thermotechnical computation for air-cooled blast furnace tuyere](/preview/png/648973.png)
To change the cooling method for the water-cooled blast furnace tuyere used during iron-making progress, according to the jet principle of fluid mechanics and heat convection principle, the technology of jet-flow air-cooled blast furnace tuyere was put forward. Based on the hypotheses about blast furnace, tuyere and the mix-up transparent gas medium in a hearth of blast furnace, the mathematical model of the thermotechnical process for tuyere surface was built by using the conservation law of energy. Keeping the temperature of tuyere surface constant, the cooling-air temperature heated by heat convection, the air-consumed amount and the volume percentage of cooling-air-consumed amount in the air-consumed amount for single tuyere were computed in accordance with the different initial temperature of cooling air jetting into blast furnace. The results indicate that the temperature of tuyere surface and the volume percentage of cooling-air-consumed amount in the air-consumed amount for single tuyere will be kept constant by selecting the different initial temperature and jetting velocity of cooling air jetting into blast furnace.
Journal: Applied Thermal Engineering - Volume 29, Issues 5–6, April 2009, Pages 1232–1238