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Title:
DEVICE FOR MIXING GRANULAR ADDITIVE IN SLURRY MUD
Document Type and Number:
Japanese Patent JP2010121363
Kind Code:
A
Abstract:

To provide a device for mixing a proper amount of granular additive in each of a large quantity of mud plugs of different sizes, which are conveyed in a lumpy shape through the inside of a conveyance pipe with air interposed between the front and rear thereof.

A slurry mud is fed, by a squeeze pump 3, into the conveyance pipe 1 for pneumatically force-feeding the slurry mud. The fed slurry mud is pneumatically force-fed while being separated to the large quantity of mud plugs in a lumpy shape. The granular additive B is supplied into an energy-absorbing cyclone 10 for damping the momentum of the slurry mud S which is discharged from a conveyance pipe outlet to the outlet side of the conveyance pipe 1, and mixed in the slurry mud by a slurry mud turning and lowering operation inside the energy-absorbing cyclone 10.


Inventors:
Kawasaki, Takahiro
Ikeda, Shozo
Application Number:
JP2008000296262
Publication Date:
June 03, 2010
Filing Date:
November 20, 2008
Export Citation:
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Assignee:
PENTA OCEAN CONSTRUCTION CO LTD
International Classes:
E02F7/00
Domestic Patent References:
JP2002059030A
JPH10147286A
JPH08150328A
JPH11229428A
JP2002059030A
JPH10147286A
Attorney, Agent or Firm:
田中 雅雄