Fjell Thermo Mechanical Dryer (TMD)

Excellent drying performance on "glue-like" materials

Difficult Drying Made Easy

The Thermo Mechanical Dryer is a very compact, dryer whereby the heat required for the evaporation is generated directly in the material by a high-speed rotor.

This dryer performs excellent on most types of material, but is truly outstanding on material that is perceived as sticky or “glue-like”. Good examples on "glue-like" materials are sludge and fish faeces in aquaculture wastewater and materials in fish processing plants.

Donwload our TMD brochure
Fjell FRS TMD Drying skid.

Key benefits of TMD for sludge drying

  • Excellent performance on most material, especially unique on sticky, “glue-like” material
  • End product is hygienized and stabilized sludge of 92-95% DM (Dry Matter) for easy, cheaper and compact transport.
  • Compact technology - suitable where size restrictions apply
  • Hazard free process
  • High-energy efficiency
  • No steam, hot oil or hot air required
  • Easy installation
  • Automatic control during operation.
  • Easy operation - One button for start-up and automatic shutdown.
  • Can be Remotely controlled
  • Elimination of mould and bacteria in dried material.
Fjell TMD 250 sludge dryer system at Norwegian salmon smolt farm.

Key features of the TMD

  • Hygienized and stabilized sludge of 92-95% DM as the end product. (Dry Matter)
  • Friction based, patented dryer technology. The rotor runs at typically 10-12 revolutions per second (600-720 rpm.).
  • PLC regulated heat control and temperature in the range 105-120°C.
  • The heat transfer and mixing rate in the friction dryer is so effective that at least 99% of the material inside the dryer is in practice pre-dried powdered sludge (particle size of 100 micron).
  • A tailor made Hammer Mill design for fish sludge from aquaculture and fish processing plants (thickened & dewatered wastewater).

FTG is the exclusive supplier for TMD towards fish farmers (RAS - and flow-through plants). The technology is owned by our strategic collaboration partner Thermtech AS.

Fjell TMD Sludge dryer plant at salmon smolt site.

Profitability is key

Reach out to explore how your plant can quikcly gain the benefits and see quick return of investment (ROI) in drying your sludge by the use of TMD technology.

An example is listed for inspiration.

  • 5000 tonnes of annual production of salmon typically generates 750 tonnes of 100% dry matter (DM).
  • Sludge is typically dried to 93-95% DM.
    • 750 tonnes of 100% DM = 3750 tonnes of 20% DM.
    • 3750 tons of 20% Dry matter content (DM) sludge = 806 tonnes 93% DM sludge.
  • Typical handling cost 20% DM Sludge = 1500 – 2500 NOK (130 - 220 €) per ton.
  • Typical handling cost 95 % DM Sludge = 400 – 800 NOK per ton.
  • Disposal cost savings = approx. 7 million NOK/year (608000 €) excl. energy cost.

Estimated yearly savings accounting also energy costs: 5,3 million NOK (459 000 €).
Assuming 1kWh = 1 NOK.

Fjell Technology Group energy saving solutions for sludge dryer plants.