文献类型：期刊文献

中文题名：掺混生物质对煤灰熔点的影响及混合灰流动温度预测

英文题名：Effects of Crop Straw on Coal ash Fusion Temperature and Prediction of Blend ash Fusion Temperature

作者：陈雪莉[1];刘涛[1];刘霞[1];刘海峰[1]

机构：[1]煤气化教育部重点实验室(华东理工大学),上海市徐汇区200237

年份：2012

卷号：32

期号：11

起止页码：41

中文期刊名：中国电机工程学报

外文期刊名：Proceedings of the CSEE

收录：CSTPCD;;EI(收录号：20122315093513);Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：国家重点基础研究发展计划项目(973项目)(2010CB227005);中央高校基本科研业务费专项资金~~

语种：中文

中文关键词：秸秆类生物质;混合灰;灰熔点;多元线性回归

外文关键词：biomass; blend ash; ash fusion temperature;multiple linear regression

摘要：研究了刘桥一矿煤、青龙矿煤、榆林煤,掺入稻草、棉秆、玉米秆3种秸秆类生物质后混合灰熔融特性的变化规律。结果表明:对于高灰熔点刘桥一矿煤和青龙矿煤,掺入3种生物质后,煤灰的流动温度显著降低,掺混比例为30%左右时灰的流动温度降至1380℃以下。稻草的掺入增加了低灰熔点榆林煤灰的流动温度,但在所有掺混比例下,混合灰的流动温度均未高于1300℃。采用多元线性回归分析的方法对灰流动温度与灰成分参数进行拟合,得到了预测生物质与煤混合灰流动温度的方程,并使用鲍店煤掺混生物质的灰分组成对回归方程进行了检验,结果显示28组样品中,96%的灰样流动温度偏差在80℃以内。
The ash fusion characteristics of Liuqiaoyikuang coal, Qinglongkuang coal, Yulin coal with rice straw, corn stalk, cotton straw were studied. The results show that the addition of 3 kinds of crop straw reduces the ash flow temperature of Liuqiaoyikuang coal and Qinglongkuang coal significantly, and the flow temperature of coal ash can be reduced to 1380 ℃ at the blend ratio of 30%. Though the addition of rice straw increases the ash flow temperature of Yulin coal, the flow temperatures of mixtures are less than 1300℃ at all blend ratios. The method of multiple linear regression was used to analyze the relationship between flow temperatures and the chemical parameters, and a prediction model was founded. The model was tested by the ash composition of Baodian coal/crop straw, and the result shows that the deviations of flow temperature calculated by the model of 96% in 28 ash samples are less than 80 ℃.