MATERIALS | MATERIALS HANDLING
Right: ProTec launched its new Somos RDF flexible modular drying system at K2019
equates to $65,580,” said Kavanagh. Using load cells in the dryer – on the vacuum hopper and retention hoppers – al- lows the touchscreen controls of the dryer to control the process in a way not seen with desiccant dryers, he said. “The use of data provided by the load cells allows the dryer to achieve many functions automatically, such as automatic start-ups, automatic stops, and making cleaning and materials changes extremely rapid,” he said. Ultra dryers are available with throughputs of
150, 300, 600, and 1,000 lbs/hr. (68, 136, 272, and 454 kg/hr). Its Ultra Low Energy vacuum dryer has a touch-
screen that enables users to show the process graphically. Load cells on the vacuum chamber and retention hopper allow the drying rate to match the process rate. A pre-heat hopper that is smaller than most means the unit holds less material in the process, so it uses less energy. Chris Crittenden, a director at Maguire IMEA, said the touchscreen changes how an operator can use the dryer. “We equip each dryer with two pairs of load
cells, one pair on the vacuum chamber and one pair on the material retention (feed) hopper. This allows us to make the software far more intuitive – so an operator can see exactly what the status of the dryer is, how much material is in process, what the demand on the dryer is and exactly what the ‘live’ consumption is,” he said. Seeing exactly what is in process – down to the last gramme – allows Maguire to add more interactive software functions like Dynamic Drying – where the system sees the demand for dried materials go up or down and automatically increases or decreases the material in process. “This is more energy efficient and better for technical raw materials,” he said.
Flexible drying ProTec Polymer Processing launched a new flexible modular drying system at K2019. The Somos RDF modular resin drying system, for flexible station-
Left: Maguire says that its Ultra vacuum resin dryer can drastically reduce energy bills
28 FILM & SHEET EXTRUSION | May 2020
ary use without a central dry air generator, consists of autonomous units with their own Industry 4.0-capable controllers. Depending on requirements and desired
throughput, the modules can be combined into a variable overall system with central visualisation and control. Components are available with capacities of 50-400 litres, with each individually controllable. When interconnected, they can be controlled using a common operator control unit. As standard, they offer drying temperatures of 60-140°C, while high-temperature variants for up to 180°C are also available.
Each module has an integrated air generator, which rules out complete failure – as may occur with a centrally supplied drying system. Installation requires little space and effort as the modules are compact and do not require extensive supply and return air piping. The system also saves energy because only the components that are needed are operated. If requirements change, modules can be added or removed, says the company. The modules can store up to 200 formulations.
They have their own dry air generators and also provide several energy-saving systems: drying air volume is adapted to throughput, while regenera- tion cycles are controlled on the basis of the actual water content of the pellets, for instance.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.conairgroup.com �
www.coperion.com �
www.brabender-technologie.com �
www.moretto.com �
www.motan-colortronic.com �
www.plasmec.it �
www.farragtech.com �
www.maguire.com �
www.sp-protec.com
www.filmandsheet.com
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