褐煤含水量对强制氧化着火过程的影响  

Effect of moisture content in lignite on forced oxidation and ignition process

作　　者：樊陈子 梁杰[1] 张晓春[1] 张宇[1] 朱汉青[1] 边啸林[1] 马佳[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《中国科技论文》2014年第6期699-702,共4页China Sciencepaper

基　　金：国家高技术研究发展计划(863计划)资助项目(2011AA050106);中央高校基本科研业务费专项基金资助项目(2012YH01)

摘　　要：利用热空气加热的方法对不同含水量褐煤煤样的强制氧化着火特性进行实验研究。通过对不同含水量褐煤煤样在不同温度条件下的升温进程、气体产生率以及耗氧量的分析，得出了在本实验条件下含水量对强制氧化着火特性的影响规律。研究表明：在本实验条件下，含水量较低的煤样着火时间更长，较大含水量对褐煤升温进程有一定的促进作用；在适当的含水量范围内，煤样的含水量越高，CO、CO2的产生率越大；含水量在19．5％～23．5％（质量分数）时，含水量越小，耗氧量越大。The forced oxidation and ignition characteristics of lignite samples with different moisture content was investigated by the hot air heating method.The influence rules of moisture content on lignite forced oxidation and ignition characteristics were obtained by the analysis of temperature rising process,gas production rate and oxygen consumption.It is found that the lower moisture content of coal sample,the longer ignition time under this experimental condition,and the high moisture content in lignite can be active to heating process.In the proper range of moisture content,the higher moisture content it has,the bigger production rate of CO and CO2 it gets.When the moisture content is between 19.5% and 23.5% （mass fraction）,the lower moisture content it has,the more oxygen consumption it gets.

关 键 词：煤化学工程 强制氧化着火 含水量 耗氧量 

分 类 号：TD84[矿业工程—煤矿开采]