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Lackeby Heat Axchanger
Sludge / Water 

Heat transfer from water to sludge

Lackeby Heat Exchanger - Sludge / Water

Lackeby Heat exchanger sludge / water  are produced based on a modular principle, with circular sludge channels, which means the design can be adapted to each plants unique conditions. The channels provide a large throughput area that keeps pressure loss low and minimises the risk of clogging. Each level of sludge channels are surrounded by a rectangular water circuit, in which water for heating/cooling flows in the opposite direction to the sludge. The unique patented open turning chamber contributes to a compact design and is simple to install.

Inspection, disassembly and maintenance are made easy because the turning chambers are mounted on a common flange. The turning chambers provide even higher heat transfer by equalising the sludge temperature profile.


  • Enhances efficiency of digestion and pasteurisation
  • Eliminates problems with multiple flanges and loose connections
  • Equalises temperature profile of sludge
  • Reduces pressure losses
  • Minimises risk of clogging

Technical Features

  • Unique design specifically for sludge
  • Patented turning chamber
  • Compact unit that is easy to install
  • Simple inspection and maintenance
  • High heat transfer
  • Large throughput area

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