The following article from Launcher USA and AMCM GmbH (an EOS Group company) highlights the use of Vacuum Conveyors, PowTReX sieving and powder recovery stations in such a case.
Click to the last page (101) in particular where Volkmann is mentioned twice
or start here at page 89 to read the full story.
Full Metal AM edition:
https://www.metal-am.com/metal-additive-manufacturing-magazine/
Follow Launcher on www.launcherspace.com and AMCM GmbH on www.amcm.com
In addition, learn more about the beneficial use of advanced metal powder handling at Materials Solutions U.K. (a Siemens company) under this Link