煉鋁爐渣高鋁耐火磚熱特性之研究

Thermal Properties of High Alumina Refractory Derived from Aluminum Dross and Ash

楊昇府(S. F. Yang) ； 王多美(T. M. Wang)

《鑛冶：中國鑛冶工程學會會刊》 60卷1期 (2016/03) Pp. 47-56

https://doi.org/10.30069/MM.201603_60(1).0005

摘要

鋁金屬冶煉爐渣及集塵灰是一種可以再利用材料化的資源，核能研究所一直以來持續不斷致力於對該類廢棄物進行研究，發展綠色材料化再利用技術，製作高鋁耐火磚和陶瓷原物料（氫氧化鋁及氧化鋁）。隨然目前已完成高鋁耐火磚商業化尺寸（230 × 114 ×65 mm）開發，現有製作程序每批次可以生產1,000塊以上的高鋁耐火磚，但是對於煉鋁爐渣高鋁耐火磚熱特性測試與研究仍有不足。因此，本研究主要針對煉鋁爐渣高鋁耐火磚熱特性包括高鋁耐火磚的再熱線性脹縮率、耐火度和荷重耐火度進行研究和建立測試方法，期望藉由熱特性測試數據，進一步了解此類高鋁耐火磚的耐熱性質、高溫安全使用極限及應用範疇。除此之外，煉鋁爐渣製作高鋁耐火磚的環境效益（如碳排放估算）也會以商業化生產規模所獲得數據和參數進行分析。

關鍵字

鋁金屬冶煉爐渣 ； 鋁集塵灰 ； 高鋁耐火磚 ； 耐火度 ； 環境效益

並列摘要

Both aluminum dross and ash have been recycled to manufacture high alumina refractory, aluminum hydroxide and aluminum oxide. Although the development of commercial size of alumina refractory (230×114×65 mm) is completed and the capacity of commercial manufacturing process for producing alumina refractory is higher than 1000 pieces/batch, the extensive thermal properties of the alumina refractory need to be determined. In this work, we developed test methods to measure the thermal properties such as reheat shrinkage, refractoriness and softening temperature of refractoriness under load. The fire resistant, suitable operating temperature and application category of alumina refractory can be clearly def ined by measured thermal properties. We also assessed the environmental benef it including greenhouse gas emission.

並列關鍵字

Aluminum dross ； Aluminum ash ； High Aluminnum refractory ； Refractoriness ； Environmental benefit