茶陵县龙头铁厂两座6.5立方米木炭高炉,无产阶级文化大革命前年产生铁三百多吨,1973年达到三千七百吨。随着生产发展,木炭燃料缺乏的矛盾越来越突出。他们根据外省有块煤、煤球炼铁的事实,考虑无优质块煤供应的情况,提出以当地煤种为燃料,试验煤球炼铁。煤球生产工艺是用饲料粉碎机将配煤破碎,加焦油粘结,在混砂机内搅拌 Chaling County, the leading ironworks two 6.5 cubic meters of charcoal blast furnace, the proletarian cultural revolution two years ago produced more than 300 tons of iron in 1973 to reach 3700 tons. With the development of production, the contradiction between the lack of charcoal fuel is more and more prominent. According to the fact that other provinces have lumps of coal and briquettes and consider the supply of high-quality lump coal, they proposed using local coal as a fuel to test the briquetting of briquettes. Briquettes production process is to use feed crusher coal crushing, plus tar bonding, stirring in the sand mixer