Title:
DUST AND SAND REMOVING METHOD
Document Type and Number:
Japanese Patent JP3214287
Kind Code:
B2
Abstract:
PURPOSE: To remove waste refuse, excretion, sedimented sand or the like in a water channel.
CONSTITUTION: The water pumped up from a water channel 1 by a water supply pump 2 is passed through a solid-liquid separator 5 and stored in a drive water tank 12 to be used as drive water 18. A sand pumping-up jet pump 16 is driven by a drive water pump 21 and water mixed with sand is passed through the solid-liquid separator 5 from a suction pipe 4 to separate sand and the separated water is circulated and reutilized by the sand pumping-up jet pump 16. The drive water 18 stored in the drive water tank 12 is used not only to drive an excretion pumping-up jet pump 17 but also to operate a scraper 37 and water mixed with excretion is passed through the solid-liquid separator 5 from the suction pipe 4 to separate excretion and the separated water is used as the feed water of excretion scraped up the scraper 37 and the separated water obtained by solid-liquid separation is circulated and reutilized by the excretion pumping-up jet pump 17.
Inventors:
Kenzo Tsubaki
Application Number:
JP6846495A
Publication Date:
October 02, 2001
Filing Date:
March 28, 1995
Export Citation:
Assignee:
Nippon Steel Tube Co., Ltd.
International Classes:
B01D21/18; B01D21/24; (IPC1-7): B01D21/18; B01D21/24
Domestic Patent References:
| JP731807A | ||||
| JP235902A |
Attorney, Agent or Firm:
Shigeru Takano
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