Tested and approved to be the optimum AERZEN rotary lobe compressor supplies conveying air for pulp factory Is it possible to transport humid wood chips by means of compressed air up to a height of 45 metres into a silo? Yes, it is! The new concept of Zellstoff Stendal GmbH provides proof of this. An AERZEN rotary lobe compressor of the new series Delta Hybrid Generation 5 supplies the compressed air for the pneumatic transport. Zellstoff Stendal produces 640,000 tons of pulp every year, an AERZEN Delta Hybrid Generation 5 supplies the required conveying air. Conveying air station of Zellstoff Stendal GmbH with the rotary lobe compressor of the new series Delta Hybrid Generation 5 supplied by AERZEN Rental unit from AERZEN International Rental with six oil-free compressing AERZEN screw compressors for preliminary conveying air supply Dirk Würsig, Production engineer of Zellstoff Stendal: "This Delta Hybrid rental unit has given us the opportunity to gain important experiences, essential for our decision on which machine we should buy. In addition, we could check operation parameters which had not been experienced up until now, so that we now operate with the highest energy efficiency."Zellstoff Stendal GmbH, which is part of the American-Canadian Mercer International Group, is the most up-to-date and biggest manufacturer of market pulp in Central Europe. Their factory in Arneburg with its 600 employees produced in 2013 about 640,000 tons of pulp from three million cubic metres of soft industrial wood. Furthermore, Zellstoff Stendal GmbH operates the biggest biomass power plant in Central Europe. With this, it covers all of its own demand for electricity and, in addition, feeds a large part into the public power supply system. Important link in the process chain Many production steps are necessary from chopping the delivered logs to re-ceiving the ready-to-use pulp. First, the pulp is cooked, and then it is fed via the pulp storage tank and the mixing container into the sorting area. Here, wood chips which are not macerated are sorted out and pneumatically conveyed back into the wood chips silo. Originally, the pneumatic transport of the wood chips was designed for a dry medium and achieved by means of a positive displacement blower of a foreign manufacturer. The high humidity of the wood chips being transported resulted in increased wear, and many breakdowns of the blower. As the supply of spare parts for the foreign packaged unit became more and more difficult, a new integral solution was requested which needed to fulfil the following criteria: application of a new compressor made in Germany;modification of the piping in order to avoid the return flow of lye;intake of the compressor air via new piping directly from outside the build- ing, and no longer from around the compressor where the air is filled with lye.First comes the test, then the order Zellstoff Stendal did not want to leave anything to chance, and in 2012 integrated a rental unit of the AERZEN subsidiary Aerzen International Rental (AIR) into the system for about three months. Thanks to this rental machine, which was speed-controlled, the company could precisely ascertain in advance the ideal quantity of compressed air, the ideal operating pressure and the backup power for future production extensions. In this way, the ideal size of the new system for optimum fulfilment of demand and highest energy-efficiency could be precisely determined.The test unit was integrated via flexible hoses into the existing concept so that the new unit could be installed without interruption of the conveying air generation, and commissioning could follow after some additional steel and piping work. Delta Hybrid Generation 5 The new conveying-air packaged unit has also become a Delta Hybrid Generation 5. This packaged unit of type GM 60 S with a motor rating of 90 kilowatts, an intake volume flow of 43.6 cubic metres per minute and a discharge pressure of 0.785 bar is not frequency-controlled but it operates with fixed speed. All system parameters could already be determined with the test unit of AIR.Since then, the Delta Hybrid unit conveys 96,000 kg of wood chips with a volume weight of 600 kg/m3 every day through piping of 129 mm diameter over a horizontal distance of 41 m and a height of 46 m - without interruption and in continuous operation.
Advanced concept of workspace utilisation for PGD As a result of the steady growth of AERZEN’s Process Gas Division, their existing office space is bursting at the seams. In addition, the innovative and open working structures of the division need to be reflected in and supported by their office environment. Accordingly, a modern and sustainable working environment has been developed which will facilitate optimum communication between the teams. Project rooms and integrated meeting areas will help to encourage creativity and close cooperation.AERZEN Process Gas Division is ideally equipped for the future with the variable space and utilisation concept in the new building. The attractive working environment will also help to attract suitably qualified personnel in the future.
Flood helper medal for factory fire brigade In the middle of June 2013, the factory fire brigade of Aerzener Maschinenfabrik joined in to fight the flooding of the river Elbe. They worked on protecting the dyke in Zeetze, Amt Neuhaus, Lower Saxony. During an awards ceremony on 4th July, the firefighters were awarded the flood medal of the federal state of Lower Saxony.
AERZEN awards promotion prize for best Bachelor-thesis In July 2014, during an awards ceremony at the theatre of Hamelin four graduates of the “Weserbergland” High School in Hamelin, were awarded a promotion prize for the best bachelor-thesis, each with a purse of EUR 500.00. On this occasion, the promotion prize in the field of industrial engineering was donated by AERZEN. And as it turned out during the award to the winner, Jan Rosemeier, AERZEN not only manufactures the largest blower in the world, but it also handed over by far the biggest cheque.
Aerzen Andina – Peru S.A.C. established A new organisational unit of AERZEN Group, Aerzen Peru S.A.C., was estab- lished in April 2014 in the Peruvian capital Lima.Having exported to Peru from Aerzen Germany and Aerzen Andina Colombia for many years, the time has come to establish an after-sales organisation in the country itself. This will allow the company to better assist its customers in this market, through offering local service and support. It is also planned to establish a sales and service organisation in 2015. Ricardo Castillo, General Manager of Aerzen Andina - Colombia, will assume control of the new organisational unit in Lima.
New Managing director at Aerzen Austria <font color="#666666" face="Arial, sans-serif">Martin Barger took over the management of Aerzen Austria on 1st April 2014. Barger, who has been working at Aerzener Maschinenfabrik since early 2014, replaced longtime Managing Director, Ewald Mayrl, who has retired after many years of loyal service.</font><font color="#666666" face="Arial, sans-serif">The 32-year-old mechanical engineer has several years of experience in the Industrial Equipment and Facilities Division.</font>
Successful Areva recertification At the end of February 2014, AERZEN passed a two-day recertification audit for the customer Areva, a leader in nuclear technology. This was achieved, not as in previous years in accordance with KTA 1401-regulations, but in accordance with NSQ-100. These regulations were published by the Nuclear Quality Standard Association (NSQA) in 2011, are based on ISO 9001 and are internationally respected.Due to the new requirements of the NSQ-100 regulations, AERZEN awaited the audit with excitement. Finally the auditors confirmed that AERZEN is well positioned even for the modified general conditions. In some aspects potential for improvement was identified, and recommendations were duly implemented to the greatest possible extent. We are thus looking forward to the next interesting and challenging orders in nuclear power plant construction
Dragon boat team competes abroad Members of AERZEN’s dragon boat team have been talking this summer not only about the traditional domestic regatta, but also for the first time about competing abroad: the team participated in the Dragon Boat Cup in Vienna in the middle of June as the only non-Austrian team and achieved a creditable fourth place. And no won- der – the team had active and loud support from an accompanying group of fans from AERZEN as well as from domestic fans of AERZEN Austria.
Turbo Business under new management <font color="#666666" face="Arial, sans-serif">In July, Stephan Brand assumed the position Director Turbo Business in addition to his responsibilities as International Marketing Manager.</font><font color="#666666" face="Arial, sans-serif">Brand has worked for Aerzener Maschinenfabrik since 1995, and has</font><font color="#666666" face="Arial, sans-serif">been in various positions in sales and marketing. As Director Turbo Business, he is responsible for the establishment of the worldwide turbo business, including production, development, finances, sales and service. Brand will coordinate the activities of AERZEN Turbo organisations worldwide.</font>
Spare Parts: Better Take the Original Aerzen original spare parts are specially designed for the compressors and blowers of Aerzener Maschinenfabrik. Consequently, they stand for a high degree of reliability and safety. In addition, Aerzen After Sales Service offers warranty, a vast storage and a quick identification of the correct parts as well as short delivery and reaction times.In short: Confidence is good – Original is better!
