4 technical-and-economic indexes of iron-making factory changgang rank no. 1 among national similar enterprises

jan.-feb. 2006, qualified rate of pig iron produced in 1080m3 blast furnace reaches 100%, ranks no. 1 among national similar enterprises; first-class rate is 99.87% and ranks no.1 in china; thousand-grad, three-hundred grad blast furnace coke yield and coal yield reach respectively 310kg/t, 307kg/t, 176kg/t, 179kg/t, the best in china and realized the goal “best management, best indexes”.

moreover, other technical-and-economic indexes of iron-making factory are also in the head of national similar enterprises. thousand-grad and three-hundred grad temperature of blast furnace reach 1190℃、1119℃，rank no.2 and no.6 in china; fuel ratio 507kg/t, 511kg/t rank no.3 and no. s2 ; energy consume of process step respectively rank no. 2 and no. 5; downtime, furnace productivity reach national best level. compared with 2002, the ranking of all indexes in iron-making factory has made a large progress under some disadvantage such as lower iron content of charged iron ore. furnace productivity advanced from no. 77 to no. 11, coke ratio、coal ratio have sprung forward respectively from no. 79 and no. 75 to no. 1, downtime from no. 76 to no. 8.