| 摘要 |
PURPOSE:To easily remove oil content by feeding down the content along an inclined U-shaped groove, feeding it down from a front hood to a hood body via a nozzle for coupling the front hood to the body, and collecting the oil to an oil storage vessel. CONSTITUTION:When contaminated air containing oil content is passed through a filter 10, a hood body 1 and a fan casing 4 by operating a motor 3, the oil content is adhered to the filter 10, the body 1 and the casing 4. The adhered oil contents are fed down on a groove 13A of the body 1 and a groove 13B of a front hood 12 as the oil content increases. The oil content fed down on the groove 13B of the hood 12 is passed through a discharge nozzle 14B and an input nozzle 14A along its slope, fed down to the groove 13B of the body 1, and can be collected to an oil storage vessel 15 along the slope together with the content fed down from the body 1 to the groove 13B. |
