[1]祁 慧,赵永椿,姚 斌,等.水洗脱除准东煤中水溶性钠的影响因素分析[J].热力发电,2015,(09):14-18.
　QI Hui,ZHAO Yongchun,YAO Bin,et al.Influence factors of removing water soluble sodium in Zhundong coal by water washing[J].Thermal Power Generation,2015,(09):14-18.
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水洗脱除准东煤中水溶性钠的影响因素分析

《热力发电》[ISSN:1002-3364/CN:61-1111/TM] 卷: 期数: 2015年09期 页码: 14-18 栏目: 热能科学研究 出版日期: 2015-09-15
Title:
Influence factors of removing water soluble sodium in Zhundong coal by water washing
作者:
祁 慧; 赵永椿; 姚 斌; 张军营; 郑楚光
华中科技大学煤燃烧国家重点实验室,湖北 武汉 430074
Author(s):
QI Hui; ZHAO Yongchun; YAO Bin; ZHANG Junying; ZHENG Chuguang
State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China
关键词:
准东煤;  水洗;  水溶性钠;  赋存形态;  逐级萃取分离;  脱除率;  影响因素
分类号:
TK16
文献标志码:
A
摘要:
为确定水洗脱除准东煤中水溶性钠的最佳工艺条件,选择五彩湾煤、天池能源煤、乌东煤3种准东煤,通过逐级萃取分离法对其中钠的赋存形态和质量分数进行研究,并以五彩湾煤为例采用正交实验和极差分析方法,研究水洗温度、脱除时间、煤粉粒径、搅拌转速等对水溶性钠脱除的影响。结果表明:3种煤总钠质量分数分别为2.329 5,2.235 9,0.598 0 mg/g,煤种钠主要以水溶性钠形式存在; 各因素对水溶性钠脱除影响的强弱顺序为水洗温度>脱除时间>搅拌转速>煤粉粒径; 在适当的水洗温度下延长脱除时间、加快搅拌转速、减小煤粉粒径,水溶性钠脱除效果明显提高; 实验确定的最佳脱除水溶性钠工况条件为水洗温度70 ℃,脱除时间24 h,搅拌转速200 r/min,煤粉粒径在38.5～54.0 μm之间。

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备注/Memo

祁慧(1991—),男,硕士研究生,主要研究方向为准东煤燃烧技术。

更新日期/Last Update: 2015-09-18