烧结砖瓦原材料及处理---粉煤灰和煤渣篇 什么是粉煤灰和煤渣?粉煤灰和煤渣均为煤在锅炉中燃烧后的废渣。粉煤灰是煤粉在煤粉炉中燃烧后的灰烬,主要来源于火力发电厂的煤粉炉。煤粉炉中也产生少量的( 15%~20%)烧 ...
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