| 摘要 |
<p>PURPOSE:To provide an electric field curtain device capable of effectively pulverizing a powder and granular material large in particle diameter such as a aggregated toner. CONSTITUTION:In an electric field curtain device for forming a non-uniform alternating electric field by impressing an alternating voltage between plural filament electrodes parallel with and insulated from each other, a recessed part 17 having >=0.3mm depth is formed on an insulating layer 16 for insulating the electrode 15A from 15B. Then the powder and granular material having large particle diameter is effectively pulverized by forming the recessed part 17 having >=0.3mm depth since the powder and granular material having large particle diameter enters the recessed part 17 and continues vibration while colliding with both sides of the wall even at the time of forming the electric field sufficient for the vibration.</p> |
