我厂处理的锡精矿的杂质含量不断增高,含锡返料不断增加,淋洗塔回收的烟尘量增加更为明显,曾一度出现积压,影响生产的正常进行。 在批林批孔运动大好形势的推动下,为了合理利用国家资源,我们粗炼工段的广大职工,破除陈规,反复实践,成功地采用返料自熔熔炼的新方 The content of impurities in the tin concentrate processed by our factory is increasing continuously, the tin-containing material is continuously increasing, the amount of soot recovered by the leaching tower increases more obviously, and the backlog has been appeared for a time, affecting the normal production. In line with the excellent situation in the bidding hole movement, in order to make rational use of the national resources, we extensively remolded the vast numbers of staff and workers in the construction section, broke away from the rules and made repeated attempts to adopt the new method