Dry
Dry processes
Zoning, separation dry-wet and specific HD rules Dry processes
Course overview
"Nuttige cursus voor bedrijven die droog produceren in de voedingsindustrie."
Roland Tetteroo
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voedingsmiddelenfabriek
20 december 2022
"Zeer uitgebreide en interessante cursus. De focus op food safety en veiligheid wat je in de dagelijkse zaken wel eens vergeet."
Ferdinand van der Linden
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componentenproducent
20 december 2022
"Prettige cursus met veel relevante voorbeelden uit de industrie."
Jesse Kraal
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voedingsmiddelenfabriek
1 juli 2022
"Een must voor iedereen die in de procesindustrie werkt, engineers, onderhoudstechnici en schoonmakers."
Fred de Vries
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voedingsmiddelenfabriek
1 juli 2022
Course description
The Dry Processes working group of the EHEDG (European Hygienic Engineering & Design Group) has published seven guidelines. This course provides a clear overview of the most important topics from these guidelines.
Companies affiliated with OOM or OTIB may be eligible for a contribution towards the costs. For more information, see www.oom.nl, respectively wij-techniek.nl.
TOPICS
1. Zoning
The sense and nonsense of hygiene measures based on risk analysis. Wet, dry, and controlled wet cleaning of equipment and spaces.
2. Dry cleaning
To what level should cleaning be done: Allergen-free or low allergen? What dry cleaning techniques are available? Effect of dry cleaning compared to other wet cleaning techniques.
3. Specific design rules for Dry Processes
The materials to be used, surface roughness, magnets, sliding behavior, couplings, flexible connections, and seals.
4. HD - discharge systems
The hygienic design of discharge installations for big bags, sack goods, and bulk trucks with a case study on discharge cabinets.
5. HD - conveying systems
All known conveying systems for dry products compared. Screw conveyors (trough, pipe, flexible), jacob's ladder, belt conveyors, reddler, aeromechanical, vibrating chute, and pneumatic conveyors (under and overpressure, various types).
6. HD - valve
Hygienic design criteria for butterfly valves, slide valves, pinch-off valves, ball segment valves, ball valves, cone valves, rotary valves, and changeover valves.
7. HD - building
The minimum design criteria for spaces to be cleaned dry.
8. Wet & Dry separation
Concept for dumping dry powders that are dissolved. Where the separation between wet and dry cleanable parts occurs.
9. CIP-cleanable components
The state of the art for EHEDG certified components that are cleanable with CIP (automatic cleaning).
10. Fluidized bed & spray dryer
All HD rules applied to a fluidized bed and spray dryer.
11. Case studies
Depending on the participants' interest: mixer, rotary sieve, drum dryer, and/or bagging installations.
