外文翻譯---用后耐火材料的再生利用(已修改)
2025-01-27 02:34 本頁面
【正文】 外文資料翻譯Reuse and Reproduction of Used RefractoriesThe paper analyzed the recycle condition and developing trend of used refractories in China and other countries, including research achievement of recycles of used refractories such as MgOC bricks, Al2O3MgOC bricks, Al2O3SiCC castable and MgOCr2O3 bricks. Recycled refractory exhibit the same or even better properties pared with the original. In addition, prospects for recycle of used refractories are also discussed.1 IntroductionAbout 9 millions tons of refractories are consumed in China annually owing to the rapid development of the metallurgical industry,from which more than 4 million tons of used refract ories are inevitably of used refractories are obsolescence, and only aminority is recycled as rawmaterials for refractory products. Discard of used refracto ries not only is lavish the natural resources but also is harmful to the environment Pollution of used refractories include following as pects of: 1) dust。 2) an thraco silicosis caused by crystalline silica dust。 3) radioactivity of zirconia rawmaterial。 4) carcinogenity of Cr+ 6。 5) carcinogenicity of refractory fiber and asb
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