TECHNOLOGY | MATERIALS PREPARATION


granulate. Due to the modular system, Koch says that various drying containers with a capacity of 20-600 litres can be integrated into EKON dryers. The company says that the user can display all


relevant operating conditions and information and adjust parameters such as drying time, temperature and dwell time, using the 10.4-inch touch panel. Safe operation of the dryer is ensured by micro filters, overload protection, air checks and a temperature limiter. The drying process is constant- ly monitored by sensors. Dry air with a dew point of -55°C can be produced in order to absorb mois- ture from the granulated plastic and to achieve the required residual moisture content of the dried material.


Above: EKON is a new type of dry air dryer from Koch- Technik that combines the CKT and EKO drying concepts


introduced to allow a direct connection between the drying and the injection processes, resulting from the ability of GenesysNext to read the injection process in real time and minimise and stabilise it on the set value. In this way, the target is maximum efficiency of the complete production process with scrap rate reduced to a minimum. The system is fully automatic and Moisture


Minder, the on-line instrument for the measure- ment of residual humidity in plastic chips, is now integrated in the GenesysNext controls. The PureTech filtration system is available as an option, providing filtration of VOCs that can be present in process air. This is particularly useful for processing recycled materials that can release low boiling substances during the heating or injection process. The PureTech filtration system guarantees that every preform produced is contaminant-free. This system also protects the desiccant towers, while ensuring consistent performance rates and a longer machine life. Koch-Technik has introduced EKON, a new type


Right: The GenesysNext from Piovan is a high


performance, fully automatic, single-hopper drying system that optimises the production process of PET preforms


of dry air dryer that combines the CKT and EKO drying concepts. EKON is available in eight various construction sizes ranging from 110-2,000 m³/h. The concept of the heat exchanger with piping system is taken from the company’s EKO dryers and has been further improved in the EKON series. As the heat is recuperated, energy consumption is reduced by 20-30%, depending on the material drying temperature. In addition to the standard blower with frequency regulation the new dryer is also equipped with Koch ÖKO’s energy manage- ment system, which intelligently adapts to the drying process to save energy and protect the material, to ensure maximum energy savings. By combining dew point control with frequency regulation, ÖKO equipment and blowers can achieve up to 50% energy savings when drying the


44 INJECTION WORLD | March 2020 www.injectionworld.com


Using an Ethernet connection, the EKON device can be connected to the corporate network to control the drying centrally through Koch visualisa- tion software. The new dryers are also equipped with the OPC-UA open interface standard allowing data exchange between production machines and peripherals independent of the manufacturer. Moretto has extended its X COMB dryer series to cover higher production needs. These small dryers are fully electric, equipped with powerful turbo-compressors, zeolite technology, dew point equaliser and the OTX hopper. X COMB dryers can be used with the MOWIS process supervision and control system. The dryers offer dew point up to -60°C (-76°F), constant performance and self-adaptive airflow. As with all Moretto dryers, the Moisture Meter for precise in-line measure- ment of residual granule moisture can also be installed on the X COMB series. Moisture Meter analyses and detects the exact content of residual moisture up to 15 parts per million. At K2019 Moretto demonstrated energy


IMAGE: KOCH TECHNIK


IMAGE: PIOVAN


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