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工业窑炉通常都是消耗优质能源;电、重油、煤气及烟煤。以机械工业热处理炉为例,其中95％以上用电,总共84,375台热处理炉(不包括冶金和重型机械企业)年用电23.9亿度,占机械行业用电27％。再从冶金、机械工业窑炉工作看,绝大多数窑炉的热效率仅20％左右,有的火焰炉热效率甚至低于5％,比工业锅炉热效率低1/2～3/4。采用新型轻质陶瓷纤维耐火材料取代耐火砖作为窑炉炉壁,减少炉子加热时通过炉体各部分的热量损失,获得节能的目的。对间歇式窑炉其节能效果尤为显著,达20～30％,有
Industrial kilns are typically high-quality energy sources; electricity, heavy oil, gas and bituminous coal. Take the mechanical industrial heat treatment furnace as an example. Among them, more than 95% of the electricity is used. A total of 84,375 heat treatment furnaces (excluding metallurgical and heavy machinery enterprises) consume 2.39 billion kWh annually, accounting for 27% of the electricity consumed by the machinery industry. Again from the metallurgical, mechanical industrial kiln work, the vast majority of furnace thermal efficiency is only about 20%, and some flame furnace thermal efficiency is even lower than 5%, lower than the thermal efficiency of industrial boiler 1/2 ~ 3/4. The use of new lightweight ceramic fiber refractory brick instead of refractory brick as a furnace wall, reducing the heating furnace through various parts of the furnace heat loss, access to energy saving purposes. The intermittent kiln energy saving effect is particularly significant, up to 20 to 30%, there