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Thesis Powder and Slurry Processes

 

Flowability Characterisation of Biomass and Fibrous Particles in a New Failure Test Apparatus

The interest in topics like recycling, biomass or fibre reinforced materials increases strongly. New processes and materials are attended with the upcoming questions of reliable storing ,
conveying and dosing devices. An important yet difficult aspect of this is the prediction of the flowability of non spherical particles because conventional methods have not shown trustworthy results for these particles. mehr

Evaluation of the Limits of Ring Shear Testing / Testing a New Adaptable Lid

The interest in topics like recycling, biomass or fibre reinforced materials increases strongly. New processes and materials are attended with the upcoming questions of reliable storing, conveying and dosing devices. While conventional shear Tests work well for a lot of particles, elongated particles lead to varying results depending on different factors such as filling. mehr

Modelling of particles agglomeration in dry grinding

This project proposes a preliminary model for fine particles agglomeration. The steps project include a literature review, experimental work and formulation of a empirical or fundamental model. mehr

Modelling of cycling processes in a stirred media mill

Within this thesis, the circulation mode should be investigated based on particle size distribution and residence time in a stirred media mill. For this matter, the rotational speed and the volume flow will be varied systematically. Furthermore, it is of interest to vary through the mass concentration and grinding charge the stress energy in the mill.
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Influence of viscosity in a stirred media mill

Within this thesis, viscosities should be varied through model fluids and it should be obtained the influence of temperature and viscosity on the grinding bead movement. Through the variation of volume flow and stirrer speed, there will be different temperatures within the mill. more


Team Members

Current Projects

Future Grinding Technologies more

Charge-based selective separation of submicron particles from grinding processes more

Silicon Graphite goes Industry more

Ultra-fine grinding of multi-component systems in stirred media mills more

Increase of the energy efficiency by controlling the flow properties and minimizing the agglomeration in dry fine grinding processes more

Stress events in planetary ball mills and their application on scaling and mill-changing behaviour more

Nanogrinding of organic and inorganic materials more

Nanogrinding of pharmaceutical ingredients in stirred media mills more

Finished Projects