| 微波加热含碳碳酸锰矿粉升温机理 |
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| 引用本文： | 潘小娟,陈津,张猛,赵晶,林原生.微波加热含碳碳酸锰矿粉升温机理[J].中南大学学报(自然科学版),2008,39(6). |
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| 作者姓名： | 潘小娟 陈津 张猛 赵晶 林原生 |
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| 作者单位： | 1. 太原理工大学,材料科学与工程学院,山西,太原,030024
2. 太原市特兴冶金技术开发有限公司,山西,太原,030002 |
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| 基金项目： | 国家自然科学基金资助项目
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| 摘 要： | 利用微波冶金炉对无烟煤和碳酸锰矿粉的混合物料进行加热，研究含碳碳酸锰矿粉在微波场中的升温机理。研究结果表明：含碳碳酸锰矿粉具有优良的微波加热特性和自还原性；在微波加热频率为2．450GHz、碳氧原子摩尔比分别为1．1，1．2和1.3时，微波加热混合物料至1473K的升温速率平均最高达到140．7K／min；不同的加热温度和配碳比下混合物料的介电常数较大，都在5．5左右，而磁导率为1左右，属介电损耗型；微波加热含碳碳酸锰矿粉的升温性能主要取决于含碳碳酸锰矿粉的电磁性能，而电磁性能的改变主要是由物料加热过程中产生的化学反应、晶体结构变化及缺陷状态的改变引起的；配碳比提高，物料吸收微波的能力有所提高；在相同的配碳比下，加热温度升高，吸收微波的能力有所减弱。
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| 关 键 词： | 微波加热 碳酸锰矿粉 升温特性 电磁性能 |
Temperature rising mechanisms of manganese carbonate fines containing coal by microwave heating |
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| PAN Xiao-juan,CHEN Jin,ZHANG Meng,ZHAO Jing,LIN Yuan-sheng.Temperature rising mechanisms of manganese carbonate fines containing coal by microwave heating[J].Journal of Central South University:Science and Technology,2008,39(6). |
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| Authors: | PAN Xiao-juan CHEN Jin ZHANG Meng ZHAO Jing LIN Yuan-sheng |
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| Affiliation: | PAN Xiao-juan1,CHEN Jin1,ZHANG Meng1,ZHAO Jing1,LIN Yuan-sheng2(1.College of Materials Science , Engineering,Taiyuan University of Technology,Taiyuan 030024,China,2.Taiyuan City Texing Metallurgical Technology Development Co.Ltd.,Taiyuan 030002,China) |
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| Abstract: | Heating experiment with the mixed materials of anthracite fines and manganese carbonate fines was done in microwave metallurgical oven.The temperature rising mechanisms of manganese carbonate fines containing coal by microwave heating were discussed.The results show that,manganese carbonate fines containing coal have good characteristics of microwave heating and self-reduction.At the molar ratios of C atom to O atom as 1.1,1.2 and 1.3 in the mixed materials,the averaged maximum temperature-rising rate of th... |
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| Keywords: | microwave heating manganese carbonate fines containing coal temperature rising characteristic electromagnetic performance |
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