| Abstract Scope |
By means of trackless type tuyere probing, the tuyere coke sample was taken from the Jingtang blast furnace （5500m3）,the largest sampling depth is 7.6 m, close to the hearth Center (7.75 meters). By the researched of the coke quality, it is discovered that Jingtang coke M40 and M10 have better linear negative correlation, there is a good linear positive correlation between M10 and coke ash. Studied the tuyere coke, the coke and the index of BF operation ,it is learned that under the premise of coal ratio of 169~206 kg / t, the tuyere coke mean size from the front of the tuyere (0-2.5 meters) is between 9.14 and 21.51mm, and the coke size is degraded from 42.1 to 30.3 mm, and the deterioration degree is between 82.1% and 58.4%. The tuyere coke deterioration degree and coke ash have positive linear relationship better. |