高炉喷吹燃料,是近四五年来,从试验到大规模使用推广,发展极其迅速和引人注目的高炉操作新技术。由于焦煤资源日益感到枯竭,而世界燃料的品种比例和价格不断出现新的变化。例如苏联1961年内在乌克兰52座高炉上用天然气,节约了220万吨焦炭,增产了83.4万吨生铁〔1〕。石油的大量开采提供了较焦炭价格更为低廉的重油。在日本,焦煤与重油均从外国购进:焦炭每吨约一万日元左右,而重油为七千日元左右〔2〕,就使日本、法国、西德、捷克等国大量推广喷吹重油,也收到了巨大的经济效果。喷吹煤粉因其资源存在的广泛性,对风口燃烧带温 Blast furnace injection of fuel, is nearly four or five years, from testing to large-scale use of the promotion of the development of extremely rapid and compelling blast furnace operation of new technologies. As coking coal resources are increasingly depleted, new changes are constantly emerging in the proportions and prices of the world’s fuels. For example, the Soviet Union in 1961 in Ukraine 52 blast furnace with natural gas, saving 2.2 million tons of coke, an increase of 834,000 tons of pig iron 〔1〕. Massive oil extraction provides a much cheaper heavy oil than coke. In Japan, coking coal and heavy oil are purchased from foreign countries: about 10,000 yen per ton of coke and about 7,000 yen for heavy oil 〔2〕, so that Japan, France, West Germany, the Czech Republic and other countries to promote a large number of injection Heavy oil, also received huge economic results. Pulverized coal injection because of its wide range of resources, the tuyere burning with temperature