化工进展2017，Vol.36Issue(10)：3633-3638,6.DOI:10.16085/j.issn.1000-6613.2017-0248
料罐中粉体静电特性
Electrostatic characteristics of powders in hopper
摘要
Abstract
Experiments were conducted to investigate the electrostatic characteristics of anthracite and biomass powders in hopper.The effects of different operating parameters and material properties,in terms of the fluidizing time,fluidizing gas velocity,material type,particle size,the moisture content,on particle charging were examined with particle charge-to-mass measured by Faraday cup.And the fitting analysis on the various factors affecting the electrostatic was implemented.The results indicated that under the same experimental conditions,ratios of powders charge to mass increased as the fluidizing time went on.Charge saturation was attained for fluidization time greater than 90min.Biomass powders were always charged positively,whereas anthracite became negatively charged.As superficial velocity increased with stronger collision,the charge density of powders increased as well.The ratios of charge to mass of small size fine anthracite particles were larger than that of the big size fine anthracite particles with the same superficial velocity.The ratios of biomass powders charge to mass decreased significantly with the increase in the moisture content.关键词
气力输送/静电特性/粉体Key words
pneumatic conveying/electrostatic characteristics/powders分类
化学化工引用本文复制引用
李俊菲,梁财,胡驾纬,陈晓平,赵长遂..料罐中粉体静电特性[J].化工进展,2017,36(10):3633-3638,6.基金项目
国家自然科学基金项目(51676048). （51676048）
