Hebei iron and steel group, hangang ironmaking around before the iron of reducing efficiency goal, optimizing "charging, into the burning, goal" raw material structure, with low price raw material replacement high raw material, promote further reduce the cost of pig.
 
In may, the combined with the raw material market price changes, adjust born with ore pellets of charging ratio, will be born four blast furnace ore ratio by 17% to 14%, and pellets ratio to 10% from 14%, so as to reduce the cost of raw material charging. At the same time to reduce the rate of coke charging containing powder tackling key, through standard material unloading order, the improvement of the coke feeding process, reform, focal line belt funnel gap, reduce material in charging in the process of conveying clean RCC, enhancing coke resources utilization.
 
The ministry to stabilize furnace condition as the foundation, increase "carry coal drop focal research efforts. In the four blast furnace strengthening standardized operation and improve smelting furnace gas points at the same time, many departments cooperation, from optimization operation system and feeding mode, the transformation equipment defects of blast furnace to create the conditions for improving index. Enter since may, four blast furnace than at the average tons of iron coke rate reduced 20 kilograms, fuel than reduced 24 kg, lower fuel costs 685 yuan.
 
The sintering process in continue to eat with steel slag, steel rolling skin, such as pressure filtration steelmaking sludge containing iron waste on the base of blast furnace gas by ash han treasure were expected, make tons of iron iron waste more efficient use of 2.2 kilograms. At the same time guarantee the quality of sinter meet blast furnace production need conditions, low product with high silicon fine powder alternative prices, high grade of all fine powder, with thick powder amount will be Brazil decreased from 15% to 10%, remove part of the high price of pink of essence, to make every tons of blending material cost $18, month can reduce production cost 9 million yuan.
 
The ministry in optimizing raw material structure, full consideration of raw materials, the company stock pressure, the maximum match eat sufficient supply of raw materials, stocks, great variety, alleviate material inventory capital to take up. In guarantee blending materials ingredients in powder content in north Africa to keep 4%, and on the basis of the inventory 3000 tons of Iran gradually digest powder, science YaKu make long of Indonesia powder with eating plan. At present, this scheme has been through the sintering cup test, is carrying on with addition of various varieties of materials before balance adjustment, ensure that match after eating blending material composition stability.




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