冶金焦炭微晶结构对其热性能影响因素的分析
毕业论文关键词： 冶金焦炭；微晶结构；高炉炼铁；冷热性能
Analysis of influence factors on thermal performance of metallurgical coke micro crystalline structure
Abstract： Coke structure is one of the main factor in the quality of coke， some structural parameters is directly used as the quality index of coke． For coke， the macro structure refers to the structure and optical organization of pore structure， micro structure refers to the crystal structure． In this paper， we mainly aimed at the structure of coke． Coke micro crystalline crystalline structure is coke micro crystalline structure deeper segments， due to the alignment of the coke microcrystalline crystalline， aggregation， which makes the coke micro crystalline structure variety persity． Research on the general ceramics by X ray diffraction， high resolution transmission electron microscopy and X - ray photo electron spectroscopy． Coke column skeleton role has become increasingly evident that coke is the main fuel for blast furnace iron making． Blast furnace to want to go direct to permeability must be good enough． If the core permeability is not good， will lead to difficulties in blast furnace operation， would cause serious accidents of blast furnace hanging etc．． So it is significant to study the thermal properties of coke．
KeyWords： smelter coke；micro crystalline structure；blast furnace iron making；cold and hot properties
目录
1绪论 1
1．1 文献综述 1
1．1．1炼焦煤的分类 1
1．1．2 焦炭的性质 2
1．1．3焦炭结构对于其冶金性能的影响 4
1．2研究目的和意义 8
1．3研究内容与目标 8
2实验 9
2．1试验方法 9
2．2实验数据相关性 9
2．2．1 焦炭热性质之间的影响 9
2．2．2 XPS对焦炭热性质的影响 11
2．2．3 XRD对焦炭热性质的影响 18
2．2．4 TEM对焦炭热性质的影响 22
2．2．5 气孔结构对焦炭热性质的影响 26
2．2．6 气孔结构对焦炭比热强度的影响 32
2．27 气孔结构对焦炭热性质的影响 36
3结论 40
致 谢 41
参考文献 42
1绪论
1．1 文献综述
1．1．1炼焦煤的分类
A 成煤过程的影响因素[1]
温度对于在成煤过程中的化学反应有决定性的作用。随着地层加深，地温升高，煤的变质程度就逐渐加深。高温作用的时间愈长，煤的变质程度愈高，反之亦然。在温度和时间的同时作用下，煤的变质过程基本上是化学变化过程。在其变化过程中所进行的化学反应是多种多样的，包括脱水、脱羧、脱甲烷、脱氧和缩聚等。