Study on pneumatic conveying characteristics of top discharge blow tank of pulverized coal

摘要：

The effects of fluidizing gas flow rate,pressurizing gas flow rate and superficial gas velocity at the riser inlet on the pneumatic conveying characteristics such as pulverized coal mass flow rate,differential pressure,solid-gas ratio,and voidage were investigated in a top discharge blow tank pneumatic conveying system at atmospheric pressure.The results indicate that as the fluidizing gas flow rate increases,the pulverized coal mass flow rate,differential pressure and solid-gas ratio increase at first and then decline,respectively.As the pressurizing gas flow rate increases,the pulverized coal mass flow rate and differential pressure increase gradually,while the solid-gas ratio increases at first and then declines.As the superficial gas velocity at the riser inlet increases,the pulverized coal mass flow rate and differential pressure increase gradually,while the solid-gas ratio increases at first and then declines.The voidage of all the experiments is below 0.95,so the top discharge blow tank system can achieve dense phase conveying.

关键词： pneumatic conveying top discharge blow tank pulverized coal mass flow rate differential pressure solid-gas ratio voidage

作者: Guiling Xu Xiaoping Chen Cai Liang Changsui Zhao Pan Xu

作者单位: School of Energy and Environment,Southeast University,Nanjing 210096,China

会议类型: 国际会议

会议名称: The 7th International Symposium on Coal Combustion(第七届国际煤燃烧学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 580-584

在线出版日期: 2011-07-19（万方平台首次上网日期，不代表论文的发表时间）