外文翻譯---用后耐火材料的再生利用(存儲版)
【正文】 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。 cm 3)Apparent porosity/%13Cold crush strength /M Pa1750℃, 3hBulk density/ ( g 用后的耐火材料能被加工成原材料，或者制成新的耐火資源，這樣不但能節(jié)約能源、礦產(chǎn)資源和降低環(huán)境污染，而且節(jié)約耐火材料和煉鋼的成本，這是鎂鈣系耐火材料循環(huán)使用的重要原因。 cm 3)顯氣孔率/%抗冷沖壓力/M Pa加入用后鎂鉻磚的比例 /%70寶鋼研制的用鎂鉻生產(chǎn)RH磚已經(jīng)超過十年，RH磚中混合摻入20%的鎂鉻磚，并且取得了良好的效果，再生鎂鉻磚的研究也是最近的研究方向，實驗結(jié)果顯示在表2，我們已經(jīng)研究了AMC磚和ASC可鑄澆注料，并且AMC磚用在了鋼包，ASC磚用在了鋼包澆注系統(tǒng)。 表2 再生鎂鉻磚的性能 MgO60 Cr 2O318 180℃, 24h體積密度/ ( g 1 簡介大約九百萬噸的耐火材料消耗在中國每年快速發(fā)展的冶金行業(yè)，而不可避免的產(chǎn)生大約四百萬噸的廢舊耐火材料，而只有一少部分是作為耐火
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