小座炉(又称勺炉),是我国应用历史最古老的一种化铁炉。因它结构简单、操作方便、原材料要求低及投资少上马快等优点,至今仍是县、社工厂多用的化铁设备。这种化铁炉的缺点是:热效率低、焦比低。一般焦比在1∶3～5,铁水温度为1300～1350℃。因此,对小座炉进行技术改造,就当前来说还具有很大的现实意义。 Small stove (also known as spoon stove), is China’s oldest application of a kind of iron stove. Because of its simple structure, easy operation, low raw material requirements and quick start-up investment, etc., it is still the county, community factory multi-purpose iron equipment. The disadvantage of this furnace is: low thermal efficiency, low coke ratio. General coke ratio of 1: 3 ~ 5, hot metal temperature of 1300 ~ 1350 ℃. Therefore, the small stove for technological transformation, for the moment also has great practical significance.