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Glossary entry

French term or phrase:

écluse alvéolaire

English translation:

rotary feeder

Added to glossary by Claire Cox
Mar 19, 2007 22:20
17 yrs ago
2 viewers *
French term

écluse alvéolaire

French to English Tech/Engineering Engineering: Industrial Crushing mills
Not much to go on here, I'm afraid - it's from a very brief document advertising a company's attendance at a forthcoming conference. The term appears in a list of equipment:

Un large choix d’équipements
- Broyeurs pendulaires
- Presses à rouleaux
- Broyeurs à percussion
- Broyeurs à broches
- Broyeurs - classificateurs
- Broyeurs - sécheurs
- Pulvériseurs haut rendement
- Cryobroyeurs
- Classificateurs dynamiques
haut rendement
- Microclassificateurs
- **Écluses alvéolaires**
- Tamiseurs rotatifs

My searches have come to nothing. Has anyone any suggestions?

Many thanks!
Proposed translations (English)
3 +1 rotary feeder
3 +1 scrapped rotary valve
2 +1 Alveolar locks

Discussion

Claire Cox (asker) Mar 19, 2007:
I've just realised that I asked a very similar question "sas alvéolaire" a few weeks ago, which gave rise to similar answers. I can only blame short term memory loss.... Actually, this is a totally different field too, but still... What surprises me is that my KudoZ search didn't bring up my previous question and answers. Also I'm still only receiving a fraction of the notifications I should be getting by e-mail, don't know why - only Boekstaaf's answer has come though, so it was a pleasant surprise to find the others when I came to the web page.

Proposed translations

+1
10 mins
Selected

rotary feeder

Sounds as if it might be this, aka a "sas rotatif". You have a pipe conveying loose (granular or powder) material, and at the end a sort of "wheel" comprising a number of buckets between its two flanges. As the wheel turns, it picks up a determined amount of the material and transfers it to a another location (e.g. a bag).

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Note added at 18 mins (2007-03-19 22:39:25 GMT)
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For another approach, see http://www.ineris.fr/badoris/Pdf/pulverulents/Pulverulent_no...

For a rotary valve to act as an Autonomous Protective System, it has to be suitable for choking an explosion. However different dusts and powders will ...
www.powderhandling.com.au/articles.php?aid=98

Powders can usually be classified into tow groups. ... Mechanical barriers include rotary valves, screw feeders and quick acting valves. ...
www.schc.org/downloads/2002spring/ebadat.pdf

Rotary Air Lock Equipment Links on Powder and Bulk Dot Com
Manufacture of rotary air locks and blowing seals. USDA approved dairy versions, easy detachable and explosion-proof models available. ...
www.powderandbulk.com/conveying/rotaryairlocks1.htm

ROTARY VALVES FOR DUST EXPLOSION CHOKES. Introduction. 1. Rotary valves with close fitting blades are widely used in powder handling operations. ...
www.hse.gov.uk/foi/internalops/fod/oc/200-299/283_15.pdf

So if my "rotary" idea is right, you may be looking at a "rotary valve" or "rotary air lock", otherwise skip the rotary (but support lions and kiwanis and round tables).
Peer comment(s):
agree Vicky Papaprodromou
3 hrs
Something went wrong...
4 KudoZ points awarded for this answer. Comment: "Thanks Alex "
+1
6 mins

Alveolar locks

Maybe this works?

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Note added at 7 min (2007-03-19 22:28:07 GMT)
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I'm trying to avoid confusing with phonetics.

--------------------------------------------------
Note added at 12 min (2007-03-19 22:32:57 GMT)
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confusion
Peer comment(s):
agree Patricia Fierro, M. Sc.
3 mins
Something went wrong...
+1
17 mins

scrapped rotary valve

I found these this definition in a french/english website :

Ecluse rotative raclée
Dispositif d'étanchéité dans une ligne process.
Usage industriel intensif pour produits humides et collants.
Principe de fonctionnement
Un rotor à alvéoles tourne dans un stator, avec un jeu limité entre les deux éléments.
Un racleur, dont la rotation est solidaire du rotor, nettoie chaque alvéole, empêchant ainsi l’encrassement.
http://www.lessinesindustries.com/fr/produits/manutention/ec...

Scrapped rotary valve
Ecluse rotative raclée
Feeding/Discharging device of sticky/humid product in an air sealed process.

Examples: feed of a rotary dryer
Working principle
The rotating cells of the valve turns in a body, with adjusted clearances. A scraper cleans permanently each individual cell on a each rotation.
http://www.lessinesindustries.com/en/products/conveying/rota...

Hope it helps!
Nath

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Note added at 10 heures (2007-03-20 08:31:45 GMT)
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Yes, scrap the scrapped/scraped, and just use rotary valve as Bourth and Richard say...
Peer comment(s):
agree Bourth (X) : Snap! (almost). But mind your pees (and cues).//Ah, but my add-on with "valve" was at 18 mins.
2 mins
yes almost snap, but you always are the faster typer!!! ;-)
neutral Richard Benham : What's there to be advertised if it's been scrapped?
3 hrs
Something went wrong...
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