“铸工”58年第7期刊登了沈阳农业机械厂引废气回炉提高热效率的经验,一度引超广泛注意。我院在去年对此也曾做过试验,效果很不理想,生产率反而下降,铁水温度也显著降低。据了解,在沈阳、天津等地一些工厂也发现类似情况。最近“铸工”编辑部正组织讨论这一问题,感到很有必要,希望在短期内能给这种装置 In the 58th issue of “Castor”, the 7th issue of Shenyang Agricultural Machinery Factory published the experience of introducing exhaust gas to improve the thermal efficiency and once attracted extensive attention. Our hospital also conducted tests on this last year, and the result was very unsatisfactory. The productivity went down and the hot metal temperature dropped significantly. It is understood that in Shenyang, Tianjin and some other factories also found a similar situation. Recently, the editor of the “Castor” was organizing discussions on this issue and felt that it was necessary in the short term to give such a device