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Felt-Xtender

Patented Shower Accessory

System advantages:
  • Variable jet angle allows better felt cleaning
  • Longer felt lifetime as a result of better conditioning
  • Enhanced dewatering capacity of the felt
  • Jet impact angle can be varied during operation
  • Easy to add on to existing shower systems
  • Can be controlled via the Rossilator/oscillator control unit
  • No additional control panel required
Mode of operation:
A pneumatic cylinder attached to the shower bearing, connected to the shower by a lever causes the shower to pivot axially as controlled. As a result, the nozzle jet angle is altered and various cleaning effects are achieved. The jet angle can be varied by up to +/- 17 degrees during operation. Control is either via the existing James Ross Rossilator control system, PLC or DCS.

Application:
Felt conditioning and felt cleaning can be influenced by using high pressure showers with variable jet angles. Conventional methods of felt cleaning use showers with a jet angle nearly perpendicular to the felt run and provide a compromise in terms of cleaning of the entire thickness of the felt. The aim is to achieve optimum cleaning and conditioning of the felt so that the dewatering performance is maintained for as long as possible. The Felt-Xtender allows the high-pressure jet to pivot from time to time in relation to the running direction of the felt. This brings about different types and depths of cleaning in the felt. The felt is opened, increases its void volume, remains efficient longer and can also be dried more easily.

Advantages:
As a result of the multiple functionality of a shower equipped with a Felt Xtender, additional showers are usually not needed to achieve optimum felt cleaning. When used correctly, the lifetime of the press felt can be increased by up to 20% and paper breaks can be reduced resulting in a significant reduction in operating costs.
The Felt-Xtender can be built into or added onto any James Ross shower. It is available for oscillating and non-oscillating showers and is suitable both for normal and high-temperature applications.

(Please click to enlarge)