摘要：采用静电电荷仪和法拉第筒‚测定了两种导电性能 完全不同的粉体在机械振动筛中静电起电量的参数。结果 表明：无论是导电的金属粉体还是非导电的粮食粉体所产生 的静电均已超出《静电安全导则》规定的安全界限。 

关键词：振动筛；静电起电；粉尘爆炸

Abstract：T he electrostatic electrification for metal and grain powders is determined in vibration sieve using Faradi can．It shows that electricity discharging can be a very important igni tion source． 

Keywords：vibration sieve；electrostatic electrification；powder exptosion