Agglomeration Characteristics of River Sand and Wheat Stalk Ash Mixture at High Temperatures
文献类型：期刊论文
| 作者 | Shang Linlin1 ; Li Shiyuan2 ; Lu Qinggang2 |
| 刊名 | JOURNAL OF THERMAL SCIENCE
 |
| 出版日期 | 2013 |
| 卷号 | 22期号:1页码:64,70 |
| 关键词 | Wheat stalk ash River sand Agglomeration Phase equilibria Microstructure |
| 英文摘要 | The agglomeration characteristics of river sand and wheat stalk ash mixture at various temperatures are investigated using a muffle furnace. The surface structural changes, as well as the elemental makeup of the surface and cross-section of the agglomerates, are analyzed by polarized light microscopy, scanning electron microscopy （SEM）, and energy dispersive X-ray （EDX）. Multi-phase equilibrium calculation is performed with FactSage in identifying the melting behavior of the river sand-wheat stalk ash mixture at high temperatures. No indication of agglomeration is detected below 850°C. At a temperature of 900-1000°C, however, obvious agglomeration is observed and the agglomerates solidify further as temperature increases. The presence of potassium and calcium enrichment causes the formation of a sticky sand surface that induces agglomeration. The main component of the agglomerate surface is K2O-CaO-SiO2, which melts at low temperatures. The formation of molten silicates causes particle cohesion. The main ingredient of the binding phase in the cross-section is K2O-SiO2-Na2O-Al2O3-CaO; the agglomeration is not the result of the melting behavior of wheat stalk ash itself but the comprehensive results of chemical reaction and the melting behavior at high temperatures. The multi-phase equilibrium calculations agree well with the experimental results. |
| WOS记录号 | WOS:000313230800010 |
| 公开日期 | 2013-04-27 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/59872]  |
| 专题 | 工程热物理研究所_Journal of Thermal Science_期刊论文 |
| 推荐引用方式 GB/T 7714 | Shang Linlin1,Li Shiyuan2,Lu Qinggang2. Agglomeration Characteristics of River Sand and Wheat Stalk Ash Mixture at High Temperatures[J]. JOURNAL OF THERMAL SCIENCE,2013,22(1):64,70. |
| APA | Shang Linlin1,Li Shiyuan2,&Lu Qinggang2.(2013).Agglomeration Characteristics of River Sand and Wheat Stalk Ash Mixture at High Temperatures.JOURNAL OF THERMAL SCIENCE,22(1),64,70. |
| MLA | Shang Linlin1,et al."Agglomeration Characteristics of River Sand and Wheat Stalk Ash Mixture at High Temperatures".JOURNAL OF THERMAL SCIENCE 22.1(2013):64,70. |
入库方式： OAI收割
来源：工程热物理研究所
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