| 摘要 |
PURPOSE: A dust removing device for a tube is provided to remove dust throughout the whole length of the cooling tube and to prevent the backflow of the dust in removing the dust in order to protect a worker. CONSTITUTION: A dust removing device for a tube includes an air inlet(10) and an air cup(20). Dust is removed by air pressure from the air inlet, and then is housed in the air cup coupled to the air inlet. The air cup surrounds the air inlet. The inner and the outer circumferential surface of the air cup are respectively separated from the outer circumferential surface of the air inlet and the inner circumferential surface of the tube at regular distances. |
