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首页> 外文会议>Symposium on Sulfide Smelting 2002, Feb 17-21, 2002, Seattle, Washington >DISSOLUTION OF PARTICLES IN THE MITSUBISHI SMELTING FURNACE
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DISSOLUTION OF PARTICLES IN THE MITSUBISHI SMELTING FURNACE

机译：三菱熔炼炉中颗粒的溶解

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摘要

In the Mitsubishi smelting furnace, copper concentrate, silica sand and water granulated slag from the converting furnace are injected through the process lances, together with oxygen enriched air, into the melt. Because bath smelting is used, the rates of particles/melt and gas/melt reactions are high enough and therefore fine grinding of the solid materials is not necessary. Among these reactions, the dissolution rate of silica sand is the slowest and limits the overall reactions in the smelting furnace. Information on the dissolution rate of silica sand plays an important role for design of a new furnace. Theoretical calculations of the dissolution rate of silica particles have been reported elsewhere. The authors conducted cold model experiments and could verify the calculation. In this paper, the dependence of dissolution rates of particles on the gas blowing rate, particle size and solid penetration depth in the bath is discussed.
机译：在三菱熔炼炉中，将来自精炼炉的铜精矿，硅砂和水粒化渣通过工艺喷枪与富氧空气一起注入熔体中。因为使用熔池熔炼，所以颗粒/熔体和气体/熔体反应的速率足够高，因此不需要对固体材料进行精细研磨。在这些反应中，硅砂的溶解速度最慢，并且限制了熔炉中的总体反应。关于硅砂溶解速率的信息对于新炉的设计起着重要作用。二氧化硅颗粒溶解速率的理论计算已在其他地方报道。作者进行了冷模型实验，可以验证计算结果。在本文中，讨论了颗粒溶解速率对熔池中气体吹入速率，颗粒尺寸和固体渗透深度的依赖性。

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