B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
B05D 1/02 (2006.01) E02D 31/00 (2006.01) E21D 11/10 (2006.01) G21F 9/36 (2006.01)
Patent
CA 2619405
The present invention provides a spray method and spray apparatus for bentonite-based material that allow forming a bentonite layer of high dry density. A spray apparatus 1 comprises a supersonic nozzle 2, to which a compressor 5 and a bentonite container 6 are connected. The supersonic nozzle 2 is fed compressed air from the compressor 5 and a bentonite-based material from the bentonite container 6. The compressed air, mixed with the bentonite-based material, is accelerated to supersonic speed when passing through a constriction portion 14 of the supersonic nozzle 2, and is sprayed at supersonic speed out of a jet orifice 11.
L~invention concerne un procédé et un appareil de pulvérisation de bentonite permettant de former une couche de bentonite de très haute densité sèche. L~appareil de pulvérisation (1) comporte une buse supersonique (2) à laquelle sont raccordés un compresseur (5) et un réservoir à bentonite (6). De l~air comprimé est injecté du compresseur (5), et de la bentonite est injectée du réservoir à bentonite (6) à la buse supersonique (2). L~air comprimé mélangé à la bentonite lors de son passage à travers une membrane à ouverture (14) de la buse supersonique (2) est accéléré jusqu~à atteindre une vitesse supersonique et pulvérisé par un orifice d~éjection (11).
Isobe Takahisa
Kobayashi Ichizo
Nakajima Makoto
Sasakura Takeshi
Tanaka Toshiyuki
Fetherstonhaugh & Co.
Kajima Corporation
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