Mixing and Drying Technology

Posted in: , on 4. Jun. 2009 - 21:05

Individual mixing and drying technology for demanding challenges



Good results can be achieved in complex processing processes by combining an Eirich intensive mixer with task-specific peripheral drying equipment in a “single unit process”.

Fundamental process engineering operations such as

•mixing,

•granulating,

•heating,

•reacting,

•drying and

•cooling

can be implemented simultaneously or one after the other in just a single machine under controlled and adjustable conditions. System concepts are individually planned and implemented as turnkey solutions. Intelligent control concepts enable processes to run more reliably and with greater flexibility.

The drying processes encompass a broad range, including for example:

•Contact drying / vacuum contact drying for small machine sizes

•Convection drying of aqueous material systems with smoke gases or hot air

•Convection drying in enclosed circulation mode (also in nitrogen atmospheres), for commercially viable reclamation of solvents

•Drying with superheated water or solvent vapour in circulation mode with integrated evaporation cooling (EVACTHERM® method)

Systems from laboratory scale right up to full production scale are available in designs with or without explosion protection. Here, conventional or vacuum-tight EVACTHERM® mixers with capacities ranging from 5 to 7,000 litres and drying rates ranging from approximately 1 kg/h to 5000 kg/h are at the heart of each system.

The underlying concept offers many advantages – not only can any consistency be processed effortlessly, with no need for pre-conditioning, but it also prevents product from becoming baked on at heated walls or installed parts. The ease with which formulas can be changed, the short start-up and closing-down times and the wide adjustment options in terms of moisture and product quality (from powder to granulate) are further outstanding features.

Typical examples of how this technology can be applied include the processing of:

•nano-suspensions

•pesticides and plant protection agents

•catalysts

•organic pigments

•colouring agents / toners

•soaps and detergent compounds

•cellulose derivates

•friction lining compounds

•lacquer slurry

Eirich can offer the long-standing experience that comes from having implemented a large number of very different plants all around the world. The development of individual concepts receives significant backup from tests carried out with the original materials at the Eirich Technical Center. The parameters and performance data obtained are the key to successfully scaling the concept back up to production size.

For more information, please visit:

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Additional information:

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