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在福建省各机器厂化铁所用的燃料,大半都是焦炭或木炭。这兩种燃料,不但价錢貴,而且供应困难,因此学習苏联先进經驗,在焦炭中滲用部分無烟煤,或全部用無烟煤代替焦炭、木炭化铁是有着重大的意义。以我厂統計,全部使用無烟煤化铁去年一年就替国家节約了木炭425吨。一般說来,只要符合下面几点的要求,就可以做为化铁燃料: 1.有相当的發热量(6000～7000千卡/公斤);2.可燃性較高,耐燃时間較長;3.含揮發物少;4.在較高溫度时,还能保持一定的机械强度;5.含水分、灰分、硫分少;6.燃料塊度有一定大小。
In Fujian Province, the iron used in various machineries fuel, most of them are coke or charcoal. These two kinds of fuels are not only expensive but also difficult to supply. Therefore, it is of great significance to study the advanced experience of the Soviet Union, infiltrate part of the anthracite with coke, or replace the coke with anthracite coal. In my factory statistics, all use of anthracite iron last year for the country saved 425 tons of charcoal. In general, as long as the following requirements are met, it can be used as iron fuel: 1. Has a considerable heat (6000 ~ 7000 kcal / kg); 2. High flammability, flame longer; 3. With less volatile matter; 4. At higher temperatures, but also to maintain a certain degree of mechanical strength; 5. Moisture content, ash, sulfur content less;