| 摘要 |
PURPOSE:To carry out effectively discharge of accumulated cotton dust, to reduced power consumption, and to miniaturize a device, by filtering off the cotton dust in suction air by a filxed screen filter, and removing the cotton dust attached to the filter by a counter air flow. CONSTITUTION:The communicating hole 16 and the window 17 for feeding the open air closed, cotton dust in a suction air flow is attached to the filter 4 by suction force of the suction fan 8, and the filtered air is exhausted through the suction fan 8. When the cottom dust attached to the filter is removed, the means 16 for removing the attached cotton dust is operated, the open air is introduced in the direction opposite to the filter 4, the attached cotton dust is released. When the released cotton dust is discharged, the accumulated cotton eliminating means 30 set at the lower part of the front chamber of the filter 5 is operated, and the cotton dust is discharged downward. |
