基于ANSYS的自旋转喷雾降尘装置的数值模拟

Numerical Simulation of Self-rotating Spray Dust Suppression Device Based on ANSYS

煤矿在生产过程中会产生大量的粉尘,粉尘问题影响了采掘工作的进展,特别是掘进工作面的速度,直接影响经济效益。自旋转喷雾降尘是一种适合高突工作面的最简单有效、经济安全的降尘技术。利用ANSYS软件对井下环境自旋转喷雾降尘装置的气雾两相流场进行数值模拟,分析了不同喷雾锥角不同偏斜角时的雾场分布,相同偏斜角时,喷雾锥角大的喷雾面积大。喷雾锥角一定时,偏斜角越大喷雾覆盖面积越大,喷射距离越短。比较了旋转和不旋转时的雾场情况,旋转时,雾场覆盖面积比不旋转时大,2组喷嘴结合为1组,雾滴密度更大,而且喷射距离也远。

Coal mine will generate a lot of dusts in the production process ; dust problems afl＇ecting the progress of mining work, espe- cially heading face velocity, directly affect the economic benefits. Self - rotating spray dust suppression is the simplest and the most effective and economic safety dust suppression technology for high outburst face. ANSYS software is used to carry out aerosol rotating two - phase flow field numerical simulation in underground environment, we analyze fog field distribution of different spray cone angles un- der different oblique angles ; when the fog field distribution is the same, and the big oblique angle has large spray area of spray cone an- gle. When the spray cone angle is in a certain, the greater of the declination of spray coverage is, the shorter of the jet distance is. We compare the fog field condition between rotating and non - rotating ; fog field cover area is bigger than that of not - rotating, two sets of nozzles are combined into one group, droplet density is bigger, and the jet distance is farther.