论文部分内容阅读
为了了解水分蒸发对露天煤堆自燃升温过程的影响机制,利用Fluent软件对煤堆内部漏风、温度场信息进行了模拟分析。计算结果表明:高温点位于煤堆中下部;水分的蒸发使煤堆在中期升温速率放缓;水分含量越高,煤堆安全保存期越长。保持一定的水分利于煤堆安全放置。
In order to understand the mechanism of water vapor evaporation on spontaneous combustion of open coal piles, the Fluent software was used to simulate the information of air leakage and temperature field inside the coal pile. The calculation results show that the high temperature point is located in the lower part of the coal piles. The evaporation of water slows down the rate of coal piles warming in the medium term. The higher the moisture content, the longer the shelf life of the coal piles. To maintain a certain amount of water is safe for coal pile placement.