| 摘要 |
<p>PURPOSE:To eliminate the leakage of collected dust from the downstream side of a main body, by arranging an air blower to the downstream side of a dust- collecting unit and providing a deflection plate parallel to the flow of dust- containing air between the dust-collecting unit and the inner wall of the main body. CONSTITUTION:When a certain degree of dust is accumulated in a dust collection unit 103, an inlet side damper 107 and an outlet side damper 108 are fully opened and jet air streams are blown to the dust-collecting unit 103 from air blowers 106 to discharge the dust of the dust-collecting unit 103 out of the machine from the discharge port 110 provided to the lower part of said unit 103. A part of the jet air streams issued from the air blowers 106 directs to the wall surface side and central side of an air blocking plate 104 but reflected to the side of the dust-collecting unit 103 by a deflection plate 105. That is, the jet air streams issued from the air blowers 106, are guided to the side and of the dust-collecting unit 103 by the deflection plate 105, and the leakage of soot from the opening part 109 of the outlet side damper 108 is prevented.</p> |
