作者：SHIGERU UKAWA;MASASHI ARAI;TADASHI SASAKI;
作者單位：Technical Center, AGC Ceramics Co., Ltd. 5-6-1, Umei, Takasago-shi, Hyogo 676-8655. Japan
刊名：Journal of the Technical Association of Refractories
ISSN：0285-0028
出版年：2007-01-05
卷：27
期：3
起頁(yè)：190
止頁(yè)：195
分類號(hào)：TQ175
語種：英文
關(guān)鍵詞：
內(nèi)容簡(jiǎn)介In cement rotary kilns, the use of Cr-free brick has been accelerated with the aim of obtaining a chrome-free operation as soon as possible. On the other hand, accompanying the increasing disposal of various industrial wastes in kilns, the wear pattern of bricks has become complicated demanding severe countermea-sures. As mentioned above, spinel brick is superior in its stability against the fluctuation of combustion atmosphere in the kiln, indicating the advantage of Cr-free brick of spinel type in this service condition in comparison with Mg-Cr brick. The usage range of our Cr-free brick has been expanded, and the total rings under operation as of January 2005 amount to 1176 rings, about double that of 2003. We are firmly determined to push forward in an all Cr-free campaign.
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