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Heard this on BBC food programme. From zentrofan brochure it makes 20 kg per hour with 1.5 kW assume say 1.2kW actually consumed.
That's ~500 kWh per tonne grain. Should keep the bakery warm?
Roller mill 200kg/h 9kW, 45kWh per tonne, which would explain why they are popular. The claim is that the system keeps flour cool, the higher energy and instaneous high temperatures in an impact mill would seem to go against that? Assume roller mills have water cooling. The granite ring in Zentrofan would soon heat up.
Roller mill uses 1/10th energy. (If you are a actual miller please confirm/deny!)
Even if you add additional power for bran grinding, it's hard to see how the zentrofan system will ever be as efficient?
Flour dust it explosive, that big open sock filter would make a nice bomb ! if you have a metal nail or bolt go through hits the rotor.
Very fine dust will pass, do bakers not suffer allergy from flour dust?
https://www.google.com/url?sa=t&source=web&rct=j&url=https://zentrofan-muehle.de/media/wysiwyg/a/zentrofan_wholefoodmill_flyer.pdf&ved=2ahUKEwjsxLqY7fHzAhWHasAKHaYiCI8QFnoECAYQAQ&usg=AOvVaw3bNDTlxGPNAfoNwf1rFeg0
https://ecomill.com/index.php?route=product/product&product_id=138
I'm not in the industry but I did try to sell air classifier mills in the past,.
Cyclone sizing is a very rough way of particle size control, take a look at a real air classifier mill like the Hosokawa ACM Alpine ZPM or Condux Attritor etc. Should get higher output and an explosion protected filter!