Spirajoule

Electrically heated screw conveyor

Spirajoule is eletrically heated screw conveyor proven for 20 years in industrial operation. Technology allows perfectly controllable, thermal processing of organics and minerals.

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SPJ

Spirajoule is eletrically heated screw conveyor proven for 20 years in industrial operation.

Continuous heating of organics and minerals​

Spirajoule® is an exclusive and patented thermal treatment process  which is the unique combination of 2 fundamental inventions: the endless screw conveyor and the heating resistance.

It is a dedicated equipment for a continuous thermal treatment in temperatures up to 750°C, basing on a hollow shaft screw conveyor heated by a low voltage current. The screw is made from electrically conductive material and is connected to an electricity power supply.

Electricity is conveyed from the power supply by the specially design components located at both sides of the screw. The passage of electronic current through the conductor (screw) generates heat, which is as a result of Joule heating (also known as Ohmic heating or resistive heating).

Why Spirajoule?

  • S - imple

    Easy to use technology

  • P - erformance

    Energy efficiency by kilo of treated feedstock

  • I - nnovative

    Dozens of possible applications through this electrified screw conveyor

  • R - obust

    Strong manufacturing with high quality material that are lasting for years

  • A - daptable

    Any kind of non-ferrous and dry material could be treated

  • J - oule

    Using Joule effect, allowing temperatures from 20 to 750°C

  • O - ptimized

    A heating management optimized by 30 years of return of experience

  • U - seful

    Continuous concept, capable of running 24/7

  • L - ow Maintenance

    Low rotation speeds imply low stress on mechanical parts

  • E - lectrical

    Fossil-free technology

Thermal treatment under a perfect control​

Accurate and stable temperature of the product

Precise control of the residence time inside the reaction chamber

Regulation of the feeding rate according to the demand

Simple and reliable solution proven in industrial applications

Thanks to its features, Spirajoule® is an equipment proposed for all types of bulk products treatment: from food industry, through chemical, petrochemical, up to the waste industry sectors.
The electrically powered screw heater provides accuracy and efficiency not achievable by other means. Processing is possible in adapted, oxidizing, reactive or inert atmosphere achieved by coating with selected gases.

Spirajoule allows heating materials exclusively by electricity, allowing to carry the process without difficulties related to burning conventional, fossil fuels and off-gases generation. Equipment can be powered exclusively from clean, carbon-free sources if needed.

Industries served

Whether applied in the food industry, valorization of waste or chemical processing, 
Spirajoule is an equipment that can be engineered around the application and well adapted to the needs.

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