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首页> 外文会议>Symposium on Sulfide Smelting 2002, Feb 17-21, 2002, Seattle, Washington >NON-ISOTHERMAL STUDY OF REFRACTORY DISSOLUTION BY COPPER-CONTAINING CALCIUM FERRITE SLAG
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NON-ISOTHERMAL STUDY OF REFRACTORY DISSOLUTION BY COPPER-CONTAINING CALCIUM FERRITE SLAG

机译：含铜铁酸钙渣耐火材料溶解的非等温研究

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摘要

A novel apparatus for studying refractory infiltration and dissolution/degradation under a temperature gradient was developed. To supersede conventional isothermal refractory testing, a new temperature gradient technique, based on a crucible equipped with a cooling element, has been developed to provide practical information on the penetration and dissolution of refractory materials under cooled conditions. This technique was adopted and applied to several refractory-slag systems. Commercially available magnesia chrome refractory bricks against a copper-containing calcium ferrite type of slag were tested and compared using both a conventional crucible test and the new temperature gradient method. The experiments were conducted at 1300-1420? under a controlled atmosphere of nitrogen or air. It was noticed that the type of porosity has a significant effect on infiltration of magnesia chrome refractories. Furthermore, the copper-containing calcium ferrite slag caused a severe slag attack and refractory failure in some cases, due to its fluidity and corrosive nature.
机译：开发了一种新型的研究温度梯度下耐火材料渗透和溶解/降解的装置。为了取代常规的等温耐火材料测试，已开发出一种新的温度梯度技术，该技术基于配备有冷却元件的坩埚，可提供有关冷却条件下耐火材料渗透和溶解的实用信息。该技术被采用并应用于多种耐火渣系统。使用常规的坩埚试验和新的温度梯度法对市售的镁铬耐火砖对含铜的铁酸钙型炉渣进行了测试和比较。实验在1300-1420℃进行。在氮气或空气的受控气氛下。注意到孔隙类型对氧化镁铬耐火材料的渗透有显着影响。此外，含铜的铁酸钙渣由于其流动性和腐蚀性而在某些情况下引起严重的渣渣侵蚀和难熔性破坏。

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