A major wastewater treatment project in the Vaal Triangle has become the first recipient in South Africa of the new energy efficient IE3 compliant DRN motors from SEW-Eurodrive.
The initial order is for ten complete units, with gearboxes and motors (six 45 kW motors and four 55 kW motors), comments head of projects, Rudi Swanepoel. These specific units will be used for aerator applications.
Customised solution required
“With aerator and mixing applications, our projects and engineering teams have to double check all of the loads and bending moments,” explains Swanepoel. “These loads are supplied to us by the client, based on their designs and we then have to ensure that the gearboxes that have been selected are suited to the application at hand.
“Our calculation program has been designed specifically to determine if the gearbox selection is adequate, based on the loads and bending moments. This is particularly important when it comes to aerators and mixers. Thus, these are not off the shelf products, but have been selected specifically for the system in question.”
SEW-Eurodrive also had to comply with stringent specifications in terms of these motors, due to the arduous conditions on-site in the wastewater treatment plant. These included the addition of auxiliary instrumentation such as PT100s (to measure temperature) and thermistors (a cut-out failsafe when the motor temperature reaches a set high point). Other additional accessories included strip heaters for colder conditions, and rain canopies.
Swanepoel reveals that, following this initial order, the company has received a follow up for another major wastewater treatment in the Eastern Cape. “These two orders in quick succession represent a foothold for us in this industry, which is definitely picking up in terms of business.”
Energy efficiency and lower TCO
SEW-Eurodrive now offers its energy-efficient DRN motor series as standard across its entire product range. “The main benefit for our customers is that it reduces the total cost of ownership over the long term, which means the payback period is quicker, and consequently the return on investment is that much higher.”
European regulations introduced at the beginning of 2016 meant that all two, four and six-pole asynchronous motors with power ratings of 7,5 kW to 375 kW have to meet the requirements of energy-efficiency class IE3 in the European Union (EU). In 2017, IE3 is now mandatory for all asynchronous motors with a power rating of 0,75 kW to 375 kW.
“We have always remained at the forefront of new technological and regulatory developments, and keeping the South African industry up to date is important to us and to our customers. The first successful order of these latest motors for the wastewater treatment industry is testament to this approach,” concludes Swanepoel.
Complete mine hoist systems
Motion Control & Drives
From friction to single and double drum hoists, ABB is a complete supplier of various types of mine hoist systems.
Read more...Innovative braking technology for heavy-duty hoists
Motion Control & Drives
The electro-hydraulic disc brakes in the DX series from RINGSPANN have been re-engineered, and are proving to be a trendsetter in the holding and emergency stop systems in the hoists of heavy-duty and container cranes.
Read more...These robots crawl into every nook and cranny DNH Tradeserve t/a DNH Technologies
Motion Control & Drives
Inuktun's small crawler robot magnetically sticks to metal walls and is able to move in all directions. It carries cameras, sensors and tools for inspection or maintenance work in tight pipes and on the outer hulls of tanks or ships. All crawler modules and cameras are equipped with brushed DC motors from Swiss drive specialist, maxon using various motor-gearhead combinations.
Read more...Proven drive technology solutions for the sugar industry SEW-EURODRIVE
Motion Control & Drives
As the South African sugar industry continues to optimise efficiency, uptime and sustainability across cane handling, processing and refining, SEW-EURODRIVE is helping drive this momentum with its world-class drive technology and local service support.
Read more...The environmental benefits of correct lubrication storage
Motion Control & Drives
While selecting the right lubricant for an application is key, how that lubricant is stored between applications is an often overlooked but critical aspect of reducing contaminants in machinery across a plant or site.
Read more...Sustainability is transforming fluid power
Editor's Choice Motion Control & Drives
Sustainability is reshaping the future of fluid power. With the growing demand for cleaner, more efficient technologies and tightening global regulations, fluid power systems are being re-engineered for higher efficiency, lower emissions and reduced material usage.
Read more...Demystifying demulsifier additives Wearcheck
Motion Control & Drives
Water is one of the most destructive contaminants in lubricants. Demulsifier additives prevent the formation of a stable oil-water mixture or an emulsion by changing the interfacial tension of the oil so that water will coalesce and separate more readily from the oil.
Read more...Speeding up warehouse automation Rockwell Automation
Editor's Choice Motion Control & Drives
Bastian Solutions designs and delivers world-class material handling systems. The company was engaged by a high-end global fashion brand to implement a new warehouse system. Bastian used Rockwell Automation Emulate3D digital twin software to test the system before it was installed and went live.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version