The mechanics of cohesive powders.
A.H. Gerritsen · University of Groningen research database (University of Groningen / Centre for Information Technology) · 1982
When stored in silo’s, powdered materials are compressed due to gravitational forces. For cohesive materials such a compression generally leads to an increase of the mechanical strenght of the material powder mass. It may occur that the strength of the material reaches values enough to form stable obstructions that cause serious problems during the discharge of the silo. Being part of a research prject, started at the University of Groningen in 1975 in order to developa device to promote the flow of cohesicve powders from silo’s, the work described in this thesis mainly ninteds to increase the insight into this phenomenon. ... Zie: Summary