Solids Processing - Comminution and Classification
Comminution and Classification
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Solid materials very seldom leave the basic production process at the desired grain size distribution. In many cases, comminution is required to obtain the specified grain size. Solid products frequently also contain misshapen fractions, such as dust or rough grains, that must be separated via classification using screening machines or flow classifiers. In dry processes, air-driven separators or pneumatic classifiers are used.
Common problems in comminution and/or classification processes are:
- fluctuating/inadequate product quality;
- lack of automation;
- high specific energy consumption;
- inadequate classification yield;
- outdated processes.
In many cases we have the appropriate solutions to these problems.
Our large assortment of classifiers and equipment for dry and wet comminution on the pilot plant and commercial production scale ensures that we will select and design the optimal unit for your product. We can also produce sample quantities from one kilogram to several tons.
We perform the scale-up of the comminution and classifying equipment as required for production and can provide concepts for technical implementation. If you wish, we will support your project from the engineering phase through commissioning. In addition to determining operating and design data, we can also help you to optimize existing units.
During the development phase of a product, often only a few grams of product produced in a laboratory are available due to reasons of costs and capacity. It is typically expected that these small amounts be used in application tests at quality levels which can also be achieved on a pilot plant scale. Finding a recipe using only small amounts of product is a challenge, particularly where wet comminution is required. We can leverage our equipment and know-how to help you handle very small amounts of material. Formulation for wet milling is supported by methods from interfacial physics and colloid chemistry.