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Hot technology for hot boards: Innovative KSB technology for handling thermal oils

Producing particleboard requires high temperatures – KSB and its high-performance heat transfer fluid pumps make sure the thermal oil used is transported smoothly.

Swiss Kronospan site, Menznau

1. Customer

Kronospan Schweiz AG is part of the Swiss Krono Group, a leading company specialised in producing and refining wood-based materials. The company's facilities in Menznau produce particleboard and fibreboard for furniture and interior finishings as well as high-density fibreboard (HDF) for laminate flooring. Since 1969, when the first chipboard left the factory, the company has trusted in KSB pumps for handling thermal oils – a long partnership that is still going strong.


2. Project

Producing wood-based chipboard is quite a hot process: First, the wood chips are dried in a rotating drum with hot gases at temperatures around 350 °C. After the dry chips have been bound together, they are pressed to form the actual board. This requires temperatures of up to 285 °C.

To be able to use such high temperatures continuously and evenly, thermal oils are used. At Kronospan the oil is heated up using recycled wood, which is burnt in a special wood energy production system. Once the oil is heated, it is transported to the production facility.


KSB Etanorm SYT heat transfer fluid pump

KSB Etanorm SYT heat transfer fluid pump

3. Challenge

What was special about this project were the tough demands the production process places on the thermal circuit – especially the high temperatures that would be enormously challenging for any pump system. The fluid to be handled was mineral thermal oil of the type Transcal N, which is characterised by a high thermal stability and a good thermal conductivity. Transporting such thermal oils in these temperature ranges requires pumps of extraordinary robustness and maximum operating reliability.


KSB Etanorm SYT heat transfer fluid pump

KSB Etanorm SYT heat transfer fluid pump

4. Solution

In the Kronospan facilities in Menznau, located in the Lucerne hinterland, more than 50 heat transfer fluid pumps made by KSB carry out their responsible task. The heating and control circuits alone are fitted with 40 Etanorm SYA and Etanrom RSY pumps of various sizes. In the main

energy centre, which was inaugurated in February 2010, the modern plant is equipped with another six Etanorm SYA and three Etanorm RSY pumps as well as pumps of the new KSB type series Etanorm SYT. Another four Etanorm SYA and Etanorm RSY pumps were installed as part of modification work at the heat energy supply system in the production facilities.

When the heat is on, experts are needed – for example Etanorm SYT with the new VenJet® venting feature. These systems are perfectly prepared for their hot and oily work. KSB’s patent-pending VenJet® venting contour ensures that the gases contained in the fluid handled can be separated and collected in a different chamber. This allows them to be released in a controlled manner via a screw plug. The pumps are especially sturdy in design and remain torsion-resistant, also in hot temperatures. Further benefits of Etanorm are its low heat transfer to the bearing bracket, low maintenance requirements and, as a result, its excellent operating reliability.

The pilot pump is an Etanorm SYT 150-400 with a flow rate of 470 m³/h, a head of 46 m and a remarkable efficiency of 83.8 %. For decades KSB service specialists have been supporting the site with great care to prevent failures and costly downtimes. The proven benefits of Etanorm SYT are more than ready for the future.


Data I Facts I Figures

  • The company: Kronospan Schweiz AG
  • Founded: 1966
  • Employees: 434 (April 2010)
  • Production of particleboard: 410,000 m3/year
  • Production of medium-density fibreboard (MDF): 223,000 m3/year
  • Engineering contractor: Ness Wärmetechnik GmbH, Remshalden
  • General planning: Richard Kablitz & Mitthof GmbH, Lauda-Königshofen
  • KSB type series used: Various Etanorm models, some with VenJet® venting contour
  • Fluid handled: Thermal oil type Transcal N
  • Operating temperature: 280 to 290 ºC
  • Commissioned: February 2011

KSB es uno de los principales fabricantes de bombas y válvulas industriales del mundo

KSB fue fundada en 1871 en Frankenthal (Alemania) y lleva más de 100 años siendo uno de los fabricantes líderes de bombas y válvulas industriales. Con más de 15 500 empleados en todo el mundo y oficinas de ventas, plantas de producción y red de servicio posventa propios, desarrolla y fabrica bombas a medida para una gran variedad de aplicaciones.

La gama de productos de este experimentado fabricante de bombas es utilizada en los sectores de la edificación e industria, el transporte de agua, el tratamiento de aguas residuales y en procesos de centrales eléctricas. Gracias a una innovadora investigación y desarrollo, KSB está en posición de satisfacer los requisitos más diversos de sus clientes. Cuenta con muchos años de experiencia y conocimientos técnicos como fabricante de bombas reconocido.

El fabricante de bombas KSB: la mejor solución para su instalación
Las bombas y válvulas industriales de KSB son aptas para una gran variedad de aplicaciones y sumamente eficientes en consumo energético. Sus productos convencen por su tecnología innovadora y son utilizados en instalaciones desde hace muchos años con excelentes resultados, entre ellos la bomba de agua normalizada Etanorm. Con más de 1,5 millones de unidades vendidas, Etanorm es una de las bombas de agua normalizadas con más éxito del mundo. Repuestos y los servicios de KSB aseguran la fiabilidad operativa de sus bombas y válvulas industriales. Los sistemas hidráulicos, la tecnología de materiales y la automatización son los puntos fuertes tecnológicos del fabricante de bombas, y en ellos precisamente se basa la fórmula del éxito de sus bombas de altas prestaciones.

Un servicio profesional desde el primer momento
Sus numerosas plantas de producción permiten al fabricante de bombas KSB ofrecer cercanía al cliente y un servicio de primera. Especialistas certificados con una amplia experiencia garantizan la excelente calidad de los productos. KSB Service se ocupa de la puesta en marcha, inspección, mantenimiento y puesta a punto de sus bombas, válvulas e instalaciones completas directamente in situ. Además, KSB se encarga de que los repuestos se reciban en un plazo breve. Como consecuencia, usted recibe el mejor servicio directamente del fabricante de sus bombas.