However, the combination of low hold-up mass and high impeller speeds leads to a reduced filtering capability and wider exit valve openings, indicating a less desirable operating point.Ĭohesive contact model Continuous manufacturing Continuous mixing technology Discrete element method Operating space Process modeling Residence time distribution.Ĭopyright © 2018 Elsevier B.V. covering both the aspects of required feed precision and the mixer design. The results indicate a high mixing quality and good filtering properties across the operating space. The continuous GCM mixer is suitable for mixing a wide range of powders. The resulting RTD has been fitted with an analytical form (generalized cascade of n continuous stirred tank reactors) and utilized to study the downstream response of the continuous mixing device to upstream fluctuations in the inlet material stream. The RTD of the DEM model has been validated with tracer experiments. A virtual design of experiments (DoE) of DEM simulations has been performed and parameters such as particle velocities, powder bed shape, residence time distribution (RTD), travel distance, and mixing quality are evaluated for the complete operating space. Here the performance of mixers of different geometry was compared using positron emission particle tracking. The hold-up mass and outlet flow are controlled by an exit valve, located at the bottom of the in-line mixer. Design influences the flow within a powder mixer but quantitative guidance is lacking. The vertical design of the mixing device allows independent control of mean residence time (MRT) and shear rate.
Fristam Powder Mixers are specifically designed for dissolving, emulsifying.
POWDER AGITATOR DESIGN SERIES
AL series agitators are designed to be fully configurable.
Heat transmission - Circulation of media in tanks with dimple jacket (cooling or heating) CONFIGURABLE DESIGN. Suspension - Fluids with particles, juice tanks, etc. A vertical in-line continuous powder mixing device (CMT - Continuous Mixing Technology) has been modelled with the discrete element method (DEM) utilizing a calibrated cohesive contact model. The solution to almost any problem when mixing powders and liquids. Solid dispersion - Powder-and-fluid mix tanks, etc.
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