B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
B05B 1/26 (2006.01) B05B 5/03 (2006.01) B05B 5/12 (2006.01) B05B 7/10 (2006.01) B05B 7/14 (2006.01) B05B 12/14 (2006.01) B05B 13/06 (2006.01) B05D 3/02 (2006.01) C23C 4/00 (2006.01)
Patent
CA 2758483
The present invention relates to a spraying nozzle, to a spraying device including such a nozzle, and to a spraying method implementing such a device. More precisely, the invention relates to a nozzle (1) for projecting powdery solid products for coating objects, said nozzle comprising a body (2) having an essentially cylindrical shape, characterized in that the body has at least two tunnels (6) extending therethrough and insulated from each other, each tunnel (6) developing helically about a main axis (3) of the nozzle. The tunnels are independently supplied with a fluid/powdery solid(s) mixture. The helical shape of the tunnels makes it possible to obtain a powerful jet with a conical shape capable of coating the inner surfaces of tubular objects.
La présente invention se rapporte à une buse de pulvérisation, à un dispositif de pulvérisation comprenant une telle buse, ainsi qu'à un procédé de pulvérisation mettant enjeu un tel dispositif. Plus précisément, la présente invention se rapporte à une buse (1) de projection de produits solides pulvérulents destinés au revêtement d'objets, ladite buse comportant un corps (2) de forme sensiblement cylindrique, caractérisée en ce que le corps est traversé de part en part par au moins deux tunnels (6) isolés l'un de l'autre, chaque tunnel (6) se développant de manière hélicoïdale autour d'un axe (3) principal de la buse. Les tunnels sont alimentés de manière indépendante en un mélange fluide / solide(s) pulvérulent(s). La forme hélicoïdale des tunnels permet d'obtenir un jet puissant, de forme conique, apte au recouvrement de surfaces internes d'objets tubulaires.
Filou Gregory
Huze Denis
Thomas Aline
Arkema France
Bcf Llp
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