Electrostatic uses

Electrostatic uses

1. Electrostatic dust precipitator.

   • removes fine particles from stream of air.
   • precipitator fitted inside chimney. Metal grid at bottom and metal plates up sides of chimney.
   • connected to high voltage - creates large potential difference between them.
   • grid and plates have opposite charge.
   • as waste gases flow past grid smoke and dust particles pick up elecrostatic charge. particles now have same charge as grid and are repelled away form it
   • they are attracted to oppositely charged plates and stick to plates forming a layer of soot.
   • plates are tapped regularly to ensure the soot falls back down