Title:
サンドトラップから沈殿物を除去する方法
Document Type and Number:
Japanese Patent JP4412700
Kind Code:
B2
Abstract:
Method for hydraulic removal of sediment from a sand trap, said sediment constituting particles varying in size from rocks to fine-grain particles, where the sediment is sucked into a substantially horizontally or inclined slotted pipe (4) through at least one slot (9) that extends substantially uninterrupted over a significant part of the length of the slotted pipe (4), from which slotted pipe (4) the sediment is directed out from the sand trap (1) through an outlet (5). The sand trap (1) is provided with a longitudinally extending ditch (2) at its bottom (3), the ditch being substantially more narrow than the sand trap, and the slotted pipe (4) being arranged close to the bottom of the ditch (2). The pressure differential between the sand trap (1) and outlet (5) is normally utilized as the only driving force for the removal of sediment. The amount of sediment to be removed may in addition be controlled by addition of water (12) downstream of the slot (9).
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Inventors:
Tom Jacobsen
Application Number:
JP2002585744A
Publication Date:
February 10, 2010
Filing Date:
April 24, 2002
Export Citation:
Assignee:
Tom Jacobsen
International Classes:
E02B7/20; B01D21/24; E02B3/02; E02B9/00; E03F5/10; E03F5/14
Domestic Patent References:
| JP59007008U | ||||
| JP6509612A | ||||
| JP61293511A | ||||
| JP50033555A | ||||
| JP59123507U |
Foreign References:
| US3638432 | ||||
| US1351979 | ||||
| US4600338 | ||||
| US1388040 | ||||
| FR487155B1 |
Attorney, Agent or Firm:
Takashi Shoji
Yuriko Shinobu
Yuriko Shinobu