燃煤工业炉窑,使用人工加煤时,总是往燃烧着的红煤上投铺生煤,火焰由下往上进行燃烧。所谓“反烧法”,即是与一般传统的方法相反,火焰由上向下地进行燃烧。目前,有些工厂采用一次性加煤的“反烧法”,亦即是燃烧的煤层较厚,是将煤一次性地放在燃烧室内,一般煤层厚度为500～ Coal-fired industrial furnaces, the use of artificial coal, always on the burning of coal on the green coal, the flame from the bottom up for combustion. The so-called “anti-burning method” means that, contrary to the traditional method, the flame is burned from the top to the bottom. At present, some factories use one-off coal “anti-burn method”, that is, thick coal burning, coal is placed in the combustion chamber all at once, and the average coal seam thickness is 500 ~