| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fine powder removing apparatus which can obtain a strong spiral flow (driving flow) so as to increase a residence time of mixed gas on the filter surface and to increase fine powder removal efficiency. <P>SOLUTION: The fine powder removing apparatus includes an inner cylinder 10 and an outer cylinder 20. At least a part of a part of the side wall of the inner cylinder 10 overlapping the side wall of the outer cylinder 20 in the axial direction of a center axis 11 of the inner cylinder 10 is formed as a porous filter 30. A first inflow pipe 60 is provided which allows the mixed gas 3 of air 1 and pellets 2 to flow into the inner cylinder 10, and an outflow pipe 70 is provided which allow the air 1 passing through filter pores 31 together with fine powers 4 contained in the mixed gas 3 flowing into the inner cylinder 10 to flow out from the side wall of the outer cylinder 20 to the outside of the outer cylinder 20 in the tangential direction. A non-porous ventilation stopping part 15 for blocking the ventilation of the air 1 is provided in at least a part of the side wall of the inner cylinder 10 overlapping the inflow pipe 60 in the axial direction of the center axis 11 of the inner cylinder 10. <P>COPYRIGHT: (C)2012,JPO&INPIT |
