采煤机螺旋滚筒喷雾压力对雾化效果的影响作用
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摘要
使用Ansys Fluent研究喷雾压力对辛置煤矿MG650/1630-WD型采煤机喷雾降尘效果的影响作用。结果表明:(1)喷雾压力越大则雾粒直径变得越小,雾粒速度不断增大,且其分布集中程度越来越高,具有更好的雾滴雾化效果;(2)综合内喷雾粒径及雾粒速度而言,辛置煤矿2-208综采工作面所采用的MG650/1630-WD型无链牵引双滚筒采煤机应选择5 MPa作为内喷雾压力。
This paper takes MG650/1630-WD chain-less haulage double drum shearer used in 2-208 fully mechanized mining face of Xinzhi Coal Mine as an example. The influence of spray pressure on the spray and dust suppression effect of shearer drum was studied by Ansys Fluent. The results showed that:(1) the larger the spray pressure, the smaller the droplet diameter, the higher the aerosol particle velocity, and the higher the concentration of aerosol particles, the better the fog atomization effect.(2) in terms of the size of spray particle and the velocity of spray particles, the MG650/1630-WD type chain free double drum shearer used in the 2-208 fully mechanized mining face in Xin Zhi coal mine should choose 5 MPa as the internal spray pressure.
This paper takes MG650/1630-WD chain-less haulage double drum shearer used in 2-208 fully mechanized mining face of Xinzhi Coal Mine as an example. The influence of spray pressure on the spray and dust suppression effect of shearer drum was studied by Ansys Fluent. The results showed that:(1) the larger the spray pressure, the smaller the droplet diameter, the higher the aerosol particle velocity, and the higher the concentration of aerosol particles, the better the fog atomization effect.(2) in terms of the size of spray particle and the velocity of spray particles, the MG650/1630-WD type chain free double drum shearer used in the 2-208 fully mechanized mining face in Xin Zhi coal mine should choose 5 MPa as the internal spray pressure.
引文
[1]安爱英.采煤机喷雾系统喷嘴喷雾仿真分析研究[D].太原:太原理工大学,2010.
[2]雷显权,陈运平,赵炯洋.天山现今地壳变形的非连续接触模型模拟[J].中南大学学报(自然科学版),2011,09:2754-2762.
[3]孟庆筱,党学会.GPS约束下九寨沟地区断裂带现今运动速率的非连续接触模拟研究[J]地震研究,2018(3):390-397.
[4]刘佳亮,司鹄.高压水射流破碎高围压岩石损伤场的数值模拟[J].重庆大学学报,2011,34(04):40-46.
[5]徐明,刘涛.综掘工作面高压喷雾降尘技术优化及应用[J].煤矿安全,2015(11):132-135.
[2]雷显权,陈运平,赵炯洋.天山现今地壳变形的非连续接触模型模拟[J].中南大学学报(自然科学版),2011,09:2754-2762.
[3]孟庆筱,党学会.GPS约束下九寨沟地区断裂带现今运动速率的非连续接触模拟研究[J]地震研究,2018(3):390-397.
[4]刘佳亮,司鹄.高压水射流破碎高围压岩石损伤场的数值模拟[J].重庆大学学报,2011,34(04):40-46.
[5]徐明,刘涛.综掘工作面高压喷雾降尘技术优化及应用[J].煤矿安全,2015(11):132-135.