FILTERING DEVICE USING FLUSH WASHING

Title:

FILTERING DEVICE USING FLUSH WASHING

Document Type and Number:

WIPO Patent Application WO/1997/005939

Kind Code:

A1

Abstract:

An object of the present invention is to obtain a high-performance and economical filtering device that is simple and streamlined in construction and which can easily remove and discharge foreign matters stuck in a screen portion by whichever of a simple manual operation or an automatic operation by an actuator. The filtering device is constructed such that a screen (11) slidable in a flow direction along the internal surface of a container (1) comprising an inlet flow path (a) and an outlet flow path (d) is provided in the container, that a foreign matter discharge port (15) is provided between the screen (11) of the container (1) and the inlet flow path (a), that the screen (11) is connected to a screen driving device section (3) via a driving shaft (4), the screen driving device section (3) being constructed to drive the screen (11) quickly in a downstream direction from the inlet flow path (a) to the outlet flow path (d), while driving it slowly in an opposite upstream direction, and that an outlet on-off valve (14) is provided at the outlet flow path (d) of the container (1). When the screen driving device section (3) is actuated after the outlet on-off valve (14) is closed, fluid is caused to flush at once from the downstream side to the upstream side of the screen (11) when the screen (11) is quickly moved toward the downstream direction, and foreign matters accumulating on a surface on the upstream side of the screen (11) are removed by the force of the flushing fluid.

More Like This:

JP2691502	INDUSTRIAL APPLICABILITY: Method and apparatus for passing a viscous liquid
WO/1995/028215	MULTIPLE COMPARTMENT FILTER
JP7465211	Improved filter unit for whole blood and blood products

Inventors:

YOKOTA HIROSHI (JP)

Application Number:

PCT/JP1996/001724

Publication Date:

February 20, 1997

Filing Date:

June 20, 1996

Export Citation:

Click for automatic bibliography generation Help

Assignee:

YOKOTA MFG (JP)
YOKOTA HIROSHI (JP)

International Classes:

B01D29/01; B01D36/02; (IPC1-7): B01D29/38

Foreign References:

JPS5226827B2

1977-07-16

Other References: