Continuous collection device in the atmosphere fallout

摘要

PROBLEM TO BE SOLVED: To provide a continuous collection apparatus for atmospheric fallout that quantitatively measures the time transition of collected mass of dry insoluble deposit, dry soluble deposit, wet insoluble deposit and wet soluble deposit.;SOLUTION: The continuous collection apparatus for atmospheric fallout includes: a funnel-shaped, dry deposit collection port; a wet deposit collection port with an upward opening; a rainfall detector for detecting rainfall; a lid of the dust collection ports; and an opening and closing mechanism for the lid of the dust collection ports. The apparatus further includes: a classifier that is disposed downstream of the dry deposit collection port and classifies atmospheric particles sucked through the dry deposit collection port, into coarse and fine particles; a dry deposit collector for coarse particles; a replacement device for the dry deposit collector; a dry deposit collector for fine particles; an air circulation passage; and a wet deposit collection device provided with a wet deposit collection container, below the wet deposit collection port, which collects particles passing through the wet deposit collection port.;COPYRIGHT: (C)2009,JPO&INPIT