Entwicklung von Prognosefunktionen zur Abschätzung der Staubungsneigung von trockenen Schüttgütern

摘要

Depending on the way respective materials are handled in different processes, particles can be released from bulk materials. Being mostly undesirable, this release of particles can represent a health risk to humans and a hazard to the environment. Therefore, the dust formation tendency represents an important material property and depends on the respective type of stress. Estimating the dust formation tendency could simplify and accelerate the assessment of potentially hazardous effects because extensive testing would become redundant. Using the rotating-drum method, the dust formation tendency of nine different powders is examined in the present thesis. Based on the results obtained and in consideration of the respective measurement methodology and the apparatus geometry, a characteristic value was determined. With the help of this characteristic value, it is possible to establish empirical forecast formulas for the rotating-drum method.