Case studie
November 9, 2020

Custom centrifugal fan for the drying installation for the animal food industry

Background

In the past, Slingerland Techniek received a customer request for a fan with very specific requirements, regarding coating, working points, finishing and motor options. After a long tendering process, Slingerland Techniek finally came out on top and we were very happy with the result. We were able to get to work and we’re proud to tell you more about the result.

Challenge

The customer is in the business of designing and manufacturing advanced, custom-designed drying systems. They were looking for a specific set of fans for a wide range of applications. More specifically, in this case the fans had to be able to be used to dry alfalfa plants. Alfalfa is a special sprout vegetable that is mainly dried artificially in the Netherlands. As the customer is active in the animal food industry, the fans had to meet the most demanding quality requirements.

Solution

For this customer, Slingerland Techniek designed 2 customized centrifugal fans. The fans are capable of drying the alfalfa plants. After drying, the plants are converted into nutritious feed grains.

What are the centrifugal fans equipped with?

  • A special coating that allowed a longer life to be guaranteed,
  • An Intergard 251HS primer and Interthane 990 finish,
  • Fully welded fans to prevent moisture from getting between the cracks,
  • A bearing coupling to relieve the load on the motor bearings,
  • An IEC norm motor with high efficiency,
  • A centrifugal impeller mounted overhanging a shaft supported by two bearings outside the air flow on a bearing foundation,
  • An elastic coupling between the fan shaft and the motor shaft,
  • A robust welded industrial housing made of bright steel.
 

Also read: What is a centrifugal fan and how does it work?

Operating point 1 at 95°C

  • Volume: m³ / hour 105,000, Static pressure: Pa 4,800 at 95 ° C (4,600 suction side loaded)
  • Speed operating point: t.p.m. 1535 / approx. 51.5 Hz, Sound pressure level: dB (A) 85 * at 1 m
  • Included kW working point: kW 188 at 95 ° C.

Operating point 2 at 95°C

  • Volume: m³ / hour 105,000, Static pressure: Pa 6,600 at 95 ° C (6,400 suction side loaded)
  • Speed work point: t.p.m. 1720 / approx. 57.7 Hz, Sound pressure level: dB (A) 87 * at 1 m
  • Included kW working point: kW 243 95 ° C.
 

Do you have a ventilation problem? Get in touch with us!

Slingerland Techniek understands that it is difficult for companies to indicate exactly what they are looking for. In order to provide companies with the best possible service, we look at the business situation together. Then the possible solutions are discussed so that we can solve your business problem in full consultation.
 
Do you recognize yourself in this problem and would you like to discuss your own situation with our specialists? Then contact us today!