PRODUCTS & APPLICATIONS MIXING & WEIGHING SYSTEMS MIXER IS WINNER-WINNER
Landia has won an order to supply stainless steel mixers to a large poultry plant in the West Midlands, where previous equipment had failed due to corrosion.
For the customer, a major supplier to
supermarkets, the installation of the 4kW, 1500rpm mixers will also introduce much-needed air into the process to eliminate odours. Serving 100m3
balance tanks, the
Landia PODBR-I submersible mixers/aerators will simultaneously mix and aerate the acidic, screened poultry plant effluent and prevent septicity from occurring. Landia’s Paul Davies commented:
“For smaller tanks where a little oxygen is required, together with thorough mixing, the Landia direct- drive mixer/aerator provides a one- stop solution, because it performs both jobs in a single operation.” He added: “For this project, our
fully-cast stainless steel units were specified, although we also offer a cast iron variant for less aggressive effluents.”
Landia
www.landia.co.uk IS IT TIME TO CONSIDER EJECTORS FOR POWDER DOSING?
In food and pharmaceutical industries, correct and safe handling of powder or solids can be an everyday challenge for handlers. With accurate dosage requirements, potential dust issues, cleanliness and manual handling restrictions to consider, it’s no wonder that operators desire to find the most suitable technology for the job. Transvac Ejectors can be used to entrain powders and small
solids using only high pressure liquid and with no moving parts. The two are thoroughly mixed within the Ejector and then discharged into the outgoing pipework. This versatile method of entraining, mixing and pumping solids using the Venturi principle offers advantages over other types of high shear mixing equipment on the market. Robust and reliable with no moving parts to wear, the units are virtually maintenance free. Each Ejector is custom designed to suit a client’s dosing requirements. This takes into account the nature of the media to be entrained and the accuracy of the dosing which needs to be achieved to minimise product waste. Transvac can complete trials at its in-house R&D department to test and prove the suitability of the solids for wet mixing, offering the best solution for most powders or solids. Available in either stationary or mobile models, the Ejectors can be supplied as individual items or complete
skid mounted systems including motive pump, wetting hopper, valves etc. Powder can be loaded manually from bags or automatically using screw feeders from bulk bags or silos, thereby keeping powder handling at a minimum. Batch and continuous operation is possible, and in many cases, fluid energy from existing pumps can be used which eliminates the need for additional power. For hygienic food and pharmaceutical applications, Transvac Ejectors are available as standard in 316L
stainless steel and have a modified design to minimise catch points for product or bacteria build up. They are suitable for C.I.P cleaning systems and can be supplied with sanitary tri-clamp fittings instead of bolted flanges. A range of polished finishes are available, tailored to meet the site specifications. Transvac can work with clients to ensure hoppers and supports also meet surface finish and cleanliness standards. Ejectors are simple devices, with no moving parts or electricity needed to run. In essence, an Ejector utilises a
high-pressure motive force to entrain a low-pressure media and discharge the mixed flows at an intermediate pressure. Ejector technology could be the simple answer to your requirements for solids and powder dosing.
Transvac Systems T: 01773 831100
www.transvac.co.uk WEIGHING AND GRADING BIRDS
WASTEWATER MIXER IS EASILY ADJUSTED
Xylem has launched a compact submersible wastewater mixer which features easily adaptable output capabilities and is said to deliver energy savings of approximately 50%. Xylem’s new Flygt 4220 mixer
enables operators to manage changing mixing conditions by simply adjusting the mixer output. As the mixer can be controlled to deliver only the output required, a plant’s energy consumption can be reduced. Johan Tegstam, director,
product management for Xylem, said: “The beauty of our new Flygt 4220 mixer lies in its adaptability. Plant operators can easily modify the mixer output, via a tank-side control panel, a programmable controller or plant-wide control system, to match current mixing needs. This functionality dramatically reduces energy consumption compared to
20 MAY 2018 | PROCESS & CONTROL
traditional fixed output mixers, significantly improves process productivity and future-proofs a facility’s mixing efficiency. We’ve designed the Flygt 4220 mixer to deliver comprehensive information about the mixer’s performance and status, including speed, power, alarms, running time and energy consumption. The mixer features a number of auto-correction functions, including overload control to protect the equipment and secure process results.” Wastewater mixing is not a static process, as mixing requirements will vary over time depending on a range of factors including flow rates, oxygen demand, and seasonal variations. Conventional mixers operate at a
fixed output which often results in wasted energy, unnecessary wear and increased maintenance due to inefficient operation of the mixer. “The Flygt 4220 mixer fits all
common installation systems and is ideal for retrofits, slotting easily into an existing installation. It is a great choice for municipal or industrial wastewater or sludge mixing applications,” said Tegstam. The mixer’s capacity to deliver a
wide range of duty points – unlike the fixed output generated by single-speed mixers – enables a single Flygt 4220 to replace multiple conventional mixers and will require fewer complete mixers and parts in stock.
Xylem
www.xylem.com/uk
Three Ishida Flex Graders, supported by the company's Sentinel remote monitoring system, are helping to deliver improved accuracy and enhanced efficiencies at a Dutch poultry processor. Van Miert slaughters and cuts up birds for onward supply. Two Flex Graders at the company’s factory in Breukelen and one at its Hunsel facility are weighing and grading breast caps into 14.5 kg crates, handling up to 135 products every minute. The breast caps are packed in various
weight ranges, from any weight below 300g up to 850g to 999g. The accuracy of the Ishida Flex Graders ensures that products are consistently graded and sorted into the appropriate category. This enables Van Miert to maximise yields and the value of each production run. Double weights (which can occur if two breast caps arrive on the weigh belt at the same time) have also been minimised, and the Flex Graders are operating at around 99.3% efficiency. The graders are currently running at around 70% of their top speed, offering the opportunity to increase throughput if required. They are also easy to clean.
Ishida Europe
www.ishidaeurope.com
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