|
Abstract In order to research the temperature drop of hot meatal during BF tapping， temperature of hot metal in casthouse runners and ladles from 5 500 m3 BF of Shougang Jingtang was tested. The results showed that hot metal temperature in casthouse runners had a periodic fluctuation. The temperature of residual hot metal in runners decreased with a rate of 0.92 ℃/min during tapping hole blocked. After the tapping hole was opened about 40 min were taken for the temperature in runners to rise up to about 1 475 ℃. Ending ladle was critical to affect the temperature of hot metal in ladles. The temperature of hot metal in ending ladles was 25 ℃ lower than that in normal ladles and related to amount of hot metal charged in the first charging period. It was easier to get a higher average temperature if ending ladles were the second ladle to be charged in than be the first.
|
|
Received: 25 October 2016
Published: 09 June 2017
|
|
|
|
2017, Vol. 52 
