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Powder Flow Analyser Test Applications


Powder Flow Analyser

Powder Flow Analysis bullet

Quality Control -
Batch and Source Variation

Powder Flow Analysis bullet

Formulation and Process Development

Powder Flow Analysis bullet

Powder Rest-Flow Transition

Powder Flow Analysis bullet

Granule Attrition and
Dusting/Product Contact parts

Powder Flow Analysis bullet

Granulation, Aggregation

Controlled Flow* technology enables the sample to be physically displaced in many different ways. The Test Settings of blade path angle and blade tip speed determine the mode of Controlled Flow* achieved within the sample column. Once programmed, the Test Settings can be exactly repeated test after test.

The Test Settings can be optimised to show the maximum differentiation between similar products, or to imitate the process or storage handling conditions, experienced by the product.

Precision manufactured Rotor Blades (optimised patent applied design), and test vessels ensure that Powder Flow Analysers always provide identical controlled flow conditions when completing the same test programme.


Powder Flow Analysis bulletQuality Control - Batch and Source Variation

When a new supplier is selected, or even when a new batch of product is delivered from the usual supplier the variation in flow properties can lead to large problems during storage and handling. The Powder Flow Analyser allows the quality control of the newly delivered items, tests can be carried out in a short time to generate a reading that tells an operator whether the powder will handle/perform in an acceptable manner.

This philosophy allows users to test powders in small volumes before deciding to fill up a silo or start processing, thus leading to large savings in terms of time and money usually resulting from unloading jammed silos.

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Powder Flow Analysis bulletFormulation and Process Development

The Powder Flow Analyser allows product development teams to test out the flow properties of new product recipes and mixes before running the powder through the process or loading up a large container.

This allows R&D teams to optimise the mixing of powders and addition of flow aids in order to make the optimum performing final product without risking flow problems or over-using expensive flow improvement additives.

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Powder Flow Analysis bulletPowder Rest-Flow Transition

Analysis of rest-flow transition using the analyser allows detailed understanding of tabletting procedures.

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Powder Flow Analysis bulletGranule Attrition and Dusting / Product Contact parts

By examing the friability of the granules or particles detailed quantification can be made about how the bulk solid will break down during conveying/processing. If a product breaks down during processing the smaller parts that break away will either be given off into the atmosphere as dust or retained in the bulk solid as smaller particles that will have an effect on the flow behaviour of the bulk solid.

Any surface that the powder has contact with will show some frictional interaction with the powder as it flows by. By analysis of the frictional interaction between the powder and a certain material the flow behaviour can be quanitfied. If there is more friction between the wall material of a silo and a new powder stored in that silo, then flow problems will occur and steps should be taken to overcome this.

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Powder Flow Analysis bulletGranulation, Aggregation

Mixing kinetics, end-point determination, scale-up analysis.

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Go to TEST EXAMPLES AND MEASURES for worked test examples.


PUBLISHED PAPERS WHICH REFER TO THE USE OF A POWDER FLOW ANALYSER

KANI, T., SUZUKI, T., TSUKADA, M. & KAMIYA, H. (2007). Influence of surface-adhered nanoparticles and nanoporous structure on bulk flowability of silica. Powder Technology, 176, 108-113.

NADA, A. H., AL-SAIDAN, A. M. & MUELLER, B. W. (2005). Improving the physical and chemical properties of ibuprofen. Pharmaceutical Technology (www.pharmtech.com), November.


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