Method to create a powder dispensing system 3

Anti-sticking is from either vibration motors to shake the tube to knock material loose or from using tubing that is adverse to things sticking to it such as polyethylene or ptfe or both.

Industrial solutions move the receivers under the dispenser.

Are there any industry-accepted methods for designing such a system?

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Yes, just google bulk solids handling. Not sure how far the engineering rabbit hole you want to go but there is a whole subsection of engineer around the physics and dynamic characteristics involved in bulk solids handling. I can share some more educational information if you'd like. That said, I don't think that's what you are looking, so let me try to provide some ideas. First off, the design you provided in the link will leave remaining product in the screw feeder when a loading batch is done. This could be a problem due to contamination issues as well as moisture absorption, may or may not be a problem but I thought at bring it up.

Do you have to fill the trays simultaneously? If not, consider a conveyer to move the trays to the dispenser or use a long screw feeder over all of the trays with valves on the underside to control which tray is being filled. If you do use a valved design pay careful consideration to the valve type. Again, google search this subject should give you plenty of ideas.

You could possibly use something like an Archimedes screw to dispense, particularly since you probably don't want to complicate the feed with the usual flow facilitators that might be detrimental to the livestock.

TTFN (ta ta for now)
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