WASHING METHOD OF SAND FILTERING DEVICE AND CATCHMENT MATERIAL

WASHING METHOD OF SAND FILTERING DEVICE AND CATCHMENT MATERIAL

PROBLEM TO BE SOLVED: To provide a sand filtering device that can be assembled at a site and performs easily maintenance such as exchange of sand layers. SOLUTION: The sand filtering device 1 is provided with a container 2 which is opened upwardly, a catchment material 3 which is formed of a cylindr...

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Bibliographische Detailangaben
Hauptverfasser: NEDACHI SATOSHI, OKAMURA AKIHIKO, HIROTSU JUNJI, OTA TAKU
Format: Patent
Sprache:eng
Schlagworte:
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a sand filtering device that can be assembled at a site and performs easily maintenance such as exchange of sand layers. SOLUTION: The sand filtering device 1 is provided with a container 2 which is opened upwardly, a catchment material 3 which is formed of a cylindrical woven cloth having self-shaping property in which fibers having bending resilience are used for at least a part of weft and is accommodated in the container 2, a drain pipe 4 which is connected to the material 3 and is extended outside of the container 2, and the sand layer 5 filling an upper side of the material 3 the container 2. COPYRIGHT: (C)2006,JPO&NCIPI