全国制锹行业的工业炉窑,有史以来都是手工烧煤,热效率仅为10％左右,燃料利用率差,不仅污染环境,而且影响工人健康。从1985年起,我厂根据工业炉窑的现状和发展趋势,吸取了国内有关厂家用燃煤气炉的成功经验,并加以改进,一举解决了制锹生产中多年来所存在的老大难问题。 National industrial shovel industry kiln, all manual coal-burning, thermal efficiency is only about 10%, poor fuel utilization, not only pollute the environment, but also affect the health of workers. From 1985 onwards, according to the status quo and development trend of our industrial kilns, our factory has drawn on the successful experience of the domestic manufacturers of coal gas stoves and improved them to solve the long-standing problems that have existed in the production of spade shovels for many years .