三元相图在配煤结渣特性研究中的应用  

APPLICATION OF THREE-ELEMENT PHASE DIAGRAM IN STUDY ON SLAGGING BEHAVIOR OF BLENDED COAL

作　　者：刘文胜[1] 赵虹[2] 杨建国[2] 翁善勇[2] 周永刚[2] 冯国华[2] 凌柏林[2] 郑航[2] 

机构地区：[1]浙江省电力试验研究院,浙江杭州310014 [2]浙江大学热能工程研究所,浙江杭州310027

出　　处：《热力发电》2009年第10期5-10,共6页Thermal Power Generation

基　　金：浙江省自然科学基金项目(Y106389)

摘　　要：采用SiO2-Al2O3-CaO三元相图分析了榆林煤与平朔煤掺配后混煤结渣倾向的变化,并利用沉降炉试验方法验证了三元相图的分析结果。沉降炉试验结果与三元相图分析显示,混煤的结渣倾向性明显降低,并且随着平朔煤掺配比例的增大,结渣程度逐渐减弱。因此,可利用三元相图优化选择配煤煤种和预测掺配效果。By using three- element phase diagram of SiO2 -AlO3 -CaO, the change of slagging tendency of blended coal after blending Yulin Coal and Pingshuo coal has been analysed,and result of analysis by using the three- element phase diagram being verified by adopting test method of the fallout furnace. The test result of fallout furnace and the analysis result of three - element phase diagram show that the slagging tendency of the blended coal has been substantially lowered, and the slagging degree being more weakened along with increasing the proportioning ratio of Pingshuo coal. Therefore, the three - element phase diagram can be used for optimization in selecting the blending coal sorts,and for predication of the blending effectiveness.

关 键 词：榆林煤 平朔煤 配煤 结渣特性 三元相图 沉降炉 

分 类 号：TK227.1[动力工程及工程热物理—动力机械及工程]