Influencing factors of pneumatic conveying efficiency of coal powder tank car
ZHANG Xin
LIU Zhenyu
LI Xiaojiong
LI Ting
Abstract：To minimize the conveying time from coal powder tanker to tower,calculated the resistance during conveying.Analyzed the influ-encing factors of unloading speed of coal powder tank car.The results show that,the pressure loss of conveying pipe consists of two-phase flow friction pressure loss,coal powder gravity pressure loss and accelerated dynamic pressure loss.When the height of silo increases from 23 m to 28 m,the conveying time of 20 tons coal powder delays from 50 min to 58.5 min,by 17%.Keep the conveying time unchanging,the inner diameter of pipe should increase from 100 mm to 106 mm which is different from the actual situation.The possible reasons are resist-ance of pipe or high moisture of coal powder.To guarantee the better conveying effects,the clean,dry and compressed air in boiler room or plant should be used as powder conveying gas.
Keywords：coal powdertank carcoal powder towerconveyresistance
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 90-92 )