Fraud Blocker The Jongia Multiprop mixer: breaking floating layers in biogas
CFD velocity magnitude plot of a biogas tank mixed by three Jongia Multiprop mixers, next to a 3D render of a single Multiprop with helical crust breaker and propeller.

The Jongia Multiprop mixer: breaking floating layers in biogas tanks

Floating layers causing problems? We’ve seen it before.

Over time, fibrous material can build up into a floating layer that traps biogas beneath the surface and drastically slows down liquid flow. Sound familiar?

Jongia has designed a solution: the Multiprop mixer!

This mixer combines two functions in one:

  • Propulsion – generating flow velocity throughout the liquid
  • Crust-breaking – pulling the floating layer down and propelling it through the propeller
Jongia Multiprop mixers installed in a biogas tank, each with a helical crust-breaking screw at the liquid surface and a propeller below, labelled Crust Breaking, Propulsion and Mixing.

Three Key Results

This unique combination delivers three key results:

  • The floating layer is broken up
  • The floating layer is flushed away
  • A homogeneous liquid is created

Another key advantage: since the mixer’s positioning is independent of the tank level, it continuously breaks up the floating layer and drives floating material toward the propeller — at all times.

Key Advantages

The Jongia Multiprop also features a shaft seal positioned above the liquid surface rather than below it. That’s a real benefit:

  • No leakage along the seal
  • No bottom bearing required — because bottom bearings in biogas tanks are simply asking for trouble

More about Jongia’s Multiprop mixer can be found at: Multiprop Mixer

Let Jongia help you and contact: [email protected]

Contact our specialized team for all your questions

Founding Jongia at Zaailand

Jongia's History

From the moment Jongia was founded in 1937 we have been evolving structurally over the years. Learn more about our company’s history with the summary of most important moments highlighted in a timeline. 

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