Materials handling | 2016
K2016: advances in materials handling
We take a look at some of the latest innovations in materials handling
Conveying accurate amounts of plastic pellets into the hopper for extrusion is a key requirement for efficient processing, and all manner of materials handling systems – from conveyors and mixers to loaders and weighing equipment – will be on show at K2016. Conair will demonstrate its new R-Pro vacuum
conveying system – which minimises pellet fracturing, angel hair and equipment wear caused by conventional dilute-phase conveying. The company says that R-Pro takes a new approach
to vacuum conveying by reducing the flow rate – without limiting throughput – in order to minimise resin damage. Pellets move at slow speeds in dense slugs of
material, from around 70m/min (230ft/min) up to 366m/ min (1200ft/min). In comparison, conventional high- speed dilute-phase conveying can run as high as 829m/ min (6000ft/min) – which can cause pellets to smear against the sides of aluminium tubing, creating ‘angel hair’ that can clog the system. Other innovations on display include: a new FLX-128
Plus conveying controller; and, a new Mobile Drying/ Conveying (MDC) system with standard colour touch- screen control interface.
FLX-128 Plus, which will be set up to control the
R-Pro demonstration, is scalable and has all same features of the earlier FLX-128. It can control R-Pro systems, and integrates Conair’s Invisible Line Proofing (ILP) system, which confirms that the proper resin source is connected to the selected destination. FLX-128 Plus uses a combination of centralised I/O and expansion modules, interconnected via industrial
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technology that will be on show at this month’s K2016 exhibition
Ethernet to provide control of up to 128 receivers, 40 pumps and 256 source valves. The MCDW mobile drying/conveying system will be
shown with Conair’s latest DC-A touchscreen control interface. The MDCW combines a Carousel Plus Dryer with a conveying blower, dust collector and direct-feed vacuum receiver to convey dried material to the throat of a processing machine – all assembled on a safe, convenient wheeled cart.
High aspirations Vent Tec 2.0 is a new generation of high-performance aspiration systems for heating/cooling mixer combina- tions from MTI Mischtechnik. The company says that the devices are the first to control their operation autono- mously – as a function of actual process parameters – to provide constant processing conditions. This helps to maintain high product quality in the plastics processing. Main applications include the production of rigid and
soft PVC dryblends and natural fibre compounds (WPC/ NFC/PPC) as well as thermal processes where Vent Tec 2.0 devices dehumidify the mixture or reduce the volatiles content. The new generation aspirator systems are available in various sizes for all mixing volumes and accommodating nearly all ATEX environments and mixer designs. Thanks to their autonomous control
October 2016 | PIPE & PROFILE EXTRUSION 39
Conair’s R-Pro vacuum
conveying system
minimises pellet
fracturing and equipment wear
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