| 摘要 |
<p>PURPOSE:To contrive to enhance dust collecting efficiency, by providing an electrostatic filter part to the downstream side of an electric dust collector, and collecting dust not collected by the electric dust collector by the electrostatic filter part to again collect the dust while sending the same to the upstream side of the electric dust collector. CONSTITUTION:Dust-containing exhaust gas is flowed into an electric dust collector 11 where the greater part of dust is removed and the exhaust gas containing residual dust with a small particle size is sent to an electrostatic filter part 12. This filter part 12 is formed of a filter 15 comprising a non-conductive material, dampers 16, 17 for closing the gas flow lines provided to the upstream and downstream sides of the filter 15 and a dust removing mechanism 30. The dust removed in the filter part 12 is guided to the upstream side of the dust collector 11 by a recirculation passage 26. By this apparatus, dust is removed with good efficiency.</p> |
