| 摘要 |
<p>A particle precipitation device for removing particles entrained in a gas stream comprises an array of passages (10) through which the gas stream can pass relatively freely, the passages being provided between plastics walls, means for urging the gas stream through the array, the plastics walls having areas of conductive material (1, 2) in contact therewith, and means for applying high and low electrical potentials alternately to isolated areas of the conductive material to provide charged sites in the array for collecting particles from the gas stream.</p> |
