高炉喷吹煤粉的经济效益

ECONOMIC BENEFIT OF PCI INTO BF

高炉富氧喷煤具有很大的经济效益，喷煤量越大，经济效益越好。按国内现行价格计算的喷煤经济效益主要来自投资节约，其次才是燃料节约。因为高炉喷煤车间的啦位投资大大低于焦化厂的单位投资。与国际价格的对比表明，我国目前煤的现行价格相对偏低，从发展趋势看，煤和生铁的差价会缩小，煤价格全上升，喷煤的经济效益还会更大，而且燃料节约在效益中所占的比例也会加大。

AbstractThe Pulverized coal injection with enriched oxvgen to blast furnace is of very high economic benefit,the more the coal injected. the highet the economic benefit.The econolnic benefit of coal injection calculated based on the current price in China nlainly resuIt from the reduction in capital cost, while the second factor is the reduction in fuel,because the unit investment of pulverized coal injection plant is considerabiy less than that of coke ovens plant. Compared with the international price of coal, the current prices in China is relatively low, in accordance with the tendency of development.the difference between price of coal and hot metal will be re-duced,the price of fuel will go up.so that coal injection will gain a higher econoicmic benefit,and the increase of economic benefit result from the reduction of fuel will accotunt for a higher percen-tage of the total economic benefit.