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鋼鐵廠含鋅鉛粉塵配碳球團的直接還原工藝

Direct Reduction Process of Pellet Containing Carbon with Addition of Zn-Pb-Bearing Iron and Steel Plant Dust

  • 摘要: 對鋼鐵廠含鋅鉛粉塵配碳球團直接還原工藝進行了研究.結果表明:生球堿度及還原時間對球團中鉛揮發率和鐵的金屬化率有顯著影響,而還原溫度則對球團中鋅、鉛揮發率和鐵的金屬化率均有顯著影響.在此基礎上確定的最佳工藝參數為:生球堿度~0.9,還原溫度和還原時間分別為1250 ℃和25 min.

     

    Abstract: The study on direct reduction process of pellet containing carbon with the addition of Zn-Pb-bearing iron and steel plant dust shows that the reduction time and pellet basicity have obvious effect on the evaporation of lead and final metalliztion degree of pellet.The reduction temperature has significantl influences on the lead and zinc evaporation ratios and on final metallization degree of pellet.The optimum parameparameters obtained are reduction temperature of 1 250℃, reduction time of 25 minutes and pellet basicity of 0.9.

     

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