期刊论文

Pei, X.-C.

中文

武汉理工大学学报

1671-4431

2009

31

12

51-54

10.3963/j.issn.1671-4431.2009.12.014

50576005:国家自然科学基金 05A016:湖南省科技厅项目

本校为第一且通讯机构

分别将0.2 g云贵和金竹山煤灰以相同的面积与厚度疏松散布在硅酸锆结合含铬SiC陶瓷板上获得多组煤灰/陶瓷板试样对,依次置于高温马弗炉中分别升温至1 250℃,1 350℃和1 450℃并恒温40 h;试样自然冷却后,对灰渣与陶瓷板进行扫描电镜(SEM)分析,然后将灰渣进行X射线衍射(XRD)检测.结果表明,温度对煤灰在SiC陶瓷板上的侵蚀有重要影响,且在相同温度下,SiC陶瓷板上云贵煤灰的熔融烧结现象比金竹山煤灰严重得多.当用此种材料作锅炉卫燃带时,对于云贵煤与金竹山煤,其表面温度应分别控制在1 250℃与1 350℃以下.

Sample pairs of coal ash/refractory were prepared through spreading loosely 0.2 g ash of coal Yungui and Jinzhushan with identical area and thickness on SiC-based refractory board, which contains zirconium silicate and chromium oxide. Then the sample pairs were put into a high temperature muffle for 40 hours sintering at 1 250 ℃, 1 350 ℃ and 1 450 ℃ respectively. After being cooled down naturally, microscopic morphology analysis of these sample pairs was conducted with a scanning electron microscopy （SEM） and then, the sintered coal ash wa...