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Kreyenborg presents outstanding competence in bulk handling at this year’s K Automatized comprehensive concept solutions all around bulk handling are among the core competences of Kreyenborg gmbH & Co. KG from Senden, Germany. At his exhibition stand in hall 9, stand A-55, this machine builder with more than 50 years of experience in the industrial fields of drying, crystallizing, storing, mixing, conveying and metering of plastic materials shows the example of an MBM Quick Mixer with a volume capacity of 500 liters. This Mixer is perfectly suited for the gentle mixing of Masterbatch, Compound or Glass Fiber pellets. The Mixer shown is the smallest of the MBM series, which covers volume capacities ranging up to 20,000 liters. With these types of Quick Mixers, Kreyenborg perfectly meets the standards set by its customers concerning gentle handling of pellets, high accuracy of mixing and simple and quick methods of cleaning. The slowly turning big mixing screw and the short residence time in the Mixer ensure the gentle treatment of the material.

If Post Consumer Recycling Materials are to be processed directly into PET Sheet, with a process authorized by FDA or by EFSA is an indispensable solution required. With its IR-CLEAN® System, KREYENBORG now offers an attractive and low-cost alternative for Post-Consumer Materials and direct decontamination processing of PET – without any kind of vacuum technology. The system is an advanced development in the process technology of the well-proven IRD Infrared Rotary Drum used in hundreds of industrial applications. The standard process of crystallization and drying of PET Post Consumer Bottle Flakes in the IRD has been refined by various changes in the process parameters and technical modifications – this has resulted in outstandingly good decontamination results which have been proven in tests in collaboration with the Fraunhofer Institute for Process Engineering and Packaging IVV. The Food + Drug Administration FDA has issued a Letter of Non-Objection on the

Kreyenborg Plant Technology and ps: perfect solutions develop innovative drying process Drying is one of the standard processes in the food industry. In contrast to conventional drying processes, the infrared rotating drum dryers developed by Kreyenborg operate with electromagnetic waves. The light energy thus generated penetrates directly into the inside of the food to be dried and is transformed into heat. The moisture to be evaporated is drawn out directly without cornification of the material to be dried. A direct comparison between the two drying processes reveals the advantages of short-wave infrared technology on several different levels. One decisive aspect which influences the quality of the food products is that the drying process is controlled directly by the product temperature rather than via the drying air. Temperature regulation with an accuracy down to a single degree, together with minimal dwell times inside the dryer, promote extremely gentle treatment of the product. The energy balance of infrared dryers is also very positive because

Kreyenborg Plant Technology focuses on multiple process competence Drying processes are standard production steps in many different industries. The fields of application for the Kreyenborg IRD infrared rotating drum dryer are virtually unlimited. In plastics processing, for example, the IRD is used for crystallization and pre-drying of virgin material or regrind. Treatment with dry air, which is extremely high in energy consumption, is completely dispensed with by using infrared drying instead. Therefore this system lends itself primarily to applications with high initial moisture content, such as is normal in recycling processes. Ideal fields of application besides material drying are gentle heating processes. The continuously operating Kreyenborg infrared rotating drum dryer heats the material directly with short-waved infrared light, so that the evaporating moisture is drawn out of the core of the material. The material passes through the machine in a continuous, even flow, is gently rolled around by the rotation of the tube and

A 20m³ KREYENBORG mixing silo with internal pipe auger has been operating successfully for 20 years at the company PONACHEM (Hamburg). KREYENBORG mixing silos are known for their excellent homogenization and longevity. Over the course of time, the requirements of the mixing silo (i.e. materials, mixing quality and performance) often change, whereby adjustments of the process may be possible. By replacing the pipe auger with an open mixing screw with special segments, the company PONACHEM gained a better mixing result, a shorter mixing time - 20 minutes instead of 4 hours - and was able to drastically reduce the energy consumption of the mixer. The results were determined on the basis of plastic regrind. However, this mixing technology is suitable for all free-flowing materials. The KREYENBORG Plant Technology GmbH & Co. KG delivers universal quick mixers as mixing and homogenizing silos for a wide rage of applications in the bulk solids industry. In addition