天津公私合营大千铁工厂試用門头溝無烟煤来代替焦炭化铁,得到了成功。該厂化铁爐是座爐,爐徑φ750公厘(風口以上),爐高1200公厘,鼓風机5馬力,每小时化铁800～900公斤,因为下料沒有一定的配料比,平均铁炭比是5:1。底焦大部分是焦炭,在層焦中無烟煤約占55～60％,焦炭約占40～45％,塊度在80～150公厘,出铁溫度第一批較高1330℃,1.5小时后出 Tianjin public-private partnership Daqian Iron Works trial Mentougou anthracite instead of coke, has been a success. The factory iron furnace is a furnace, furnace diameter φ750 mm (tuyere above), furnace height 1200 mm, blower 5 horsepower iron per hour 800 ~ 900 kg, because the material is not a certain ratio of ingredients, the average iron and carbon The ratio is 5: 1. The bottom coke is mostly coke, anthracite in layer coke accounts for about 55 ~ 60%, coke accounts for about 40 ~ 45%, blockiness is 80 ~ 150 mm, the first batch of iron temperature higher 1330 ℃, 1.5 hours After the exit