印尼煤掺混烟煤着火特性的热重实验研究

Thermogravimetric Experimental Investigation into Ignition Characteristics of Indonesia Coal Blended with Bituminous Coal

印尼煤是我国沿海地区火电厂燃用的重要煤种之一,常被用于同其它煤种掺烧.文中用热重分析方法研究印尼煤和其它3种常用动力煤按不同比例掺混后的燃烧过程,通过比较混煤燃烧的活化能,判断其着火特性.试验结果表明,印尼煤的活化能很低,很容易着火,其与着火特性较差的煤种混合时,能显著改善着火特性较差煤种的着火特性,与着火特性接近的煤种混合时,着火特性偏向燃烧活化能较大的煤种.

Indonesia coal is one of the important burning coal for thermal power plants in China coastal region. It is often blended with other coal for burning. In this paper, a thermogravimetric analysis was performed to investigate the burning process of Indonesia coal blended with other three kinds of bituminous coal at different blending ratios, and the activation energies of these kinds of blended coal were compared to reveal the corresponding ignition characte- ristics. Experimental results indicate that Indonesia coal is easy to ignite due to its low activation energy and may improve the ignition characteristics of the blended bituminous coal with poor ignition characteristic, and that, when it blended with other coal with similar ignition characteristics, the ignition characteristic is similar to that of the coal with low activation energy.