石墨固废基电热墙材布置试验与模拟研究

Experimental and Simulation Study on Layout of Electrothermal Wall Materials Prepared by Graphite Solid Waste

随着石墨矿大规模开发及环保要求的日益提高,石墨固体废弃物的资源化利用成为研究热点。利用石墨固体废弃物制备电热板材,采用试验研究、统计分析、数值模拟等方法研究石墨电热板铺设方式对室内热环境的影响。结果表明:石墨固废基电热板材具有良好的加热效果,双面加热时选择对双宽面加热效果更好,垂直温差为2.7℃,水平温差为2.5℃;三面加热时,选择两窄一宽加热,室内温度分布更为均匀,垂直温差为2.5℃,水平温差为6.5℃;四面加热时效果最佳,垂直温差为1.8℃,水平温差不足1℃,升温速率最稳定。

With the large-scale development of graphite ore and the increasing requirements of environmental protection,the resource utilization of graphite solid waste has become a research hotspot.The graphite solid waste was used to prepare electric heating plate.Different methods such as experiment study,statistical analysis and numerical simulation were used to analyze the influence of laying mode on indoor thermal environment.The results showed that the graphite solid waste based electric heating plate has a good heating effect,double wide surface heating effect is better when the two sides heating,the vertical temperature difference is 2.7℃,the horizontal temperature difference is 2.5℃;Choose two narrow and one wide surface when heating on three sides,indoor temperature distribution is more uniform,the vertical temperature difference is 2.5℃,the horizontal temperature difference is 6.5℃.The four sides heating effect is the best,the vertical temperature difference is 1.8℃,the horizontal temperature difference is less than 1℃,the heating rate is the most stable.