Advanced Cyclone Systems, S. A.

- Model EH - Electrostatic Recirculation System

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Recent adoption of electrostatic recirculation in the same cyclone system has successfully proven to further reduce particle emissions, even in the [1;5]µm particle size range, assuring future regulation compliance, particularly where legal limits are very tight, with the objective of bag filter redundancy.

A DC high voltage is applied to the concentrator, allowing the recirculation of very fine nanometric particles, more resistant to centrifugal forces, to the cyclone collector. After having been separated in the recirculator and concentrated in the recirculation flow, electrically charged fine particles are attracted by the cyclone walls, while agglomerating with larger particles entering the system - both promoting their easier capture.

Since particles are not captured on the walls of the recirculator, contrary to ESPs, ReCyclone EH systems avoid the problem of dust accumulation and condensation.

Additionally, ReCyclone EH systems have low sensitivity to either low or high dust electrical resistivity and the HV required power is only 10 to 15 % of that used in ESPs.

Electrostatic recirculation for fine particle capture was the winner of the Portuguese Environmental Press Award in 2008 and nominee for the European Environmental Press Award 2008.

A dc high voltage is applied in the concentrator, allowing the recirculation of very fine nanometric particles, more resistant to centrifugal forces, to the cyclone collector. After having been separated in the recirculator and concentrated in the recirculation flow, electrically charged fine particles are attracted by the cyclone walls, while agglomerating with larger particles entering the system, both promoting their easier capture. Since particles are not captured on the walls of the recirculator, contrary to ESPs, ReCyclone systems avoid the problem of dust colmatation and condensation. Additionally, ReCyclone EH systems are also immune to either low or high dust electrical resistivity and the HV required power is only 10 to 15 % of that used in ESPs. Electrostatic recirculation for fine particle capture was the winner of the Portuguese Environmental Press Award in 2008 and nominee for the European Environmental Press Award 2008.

  • Very high efficiencies
  • Pressure drop: [120-180] mm w. g.
  • Direct product discharge avoiding product degradation and cross contamination
  • Very smooth surface finishing to meet strict requirements
  • Materials of construction in 316L stainless steel
  • Absence of condensation with heat tracing systems
  • Low gas velocities
  • Electrical field power = 5 % fan power
  • Low operation and investment costs
  • Very low maintenance and downtime costs
  • Ability to handle variable flow rates with recirculation control
  • Clean in Place (CIP) cleaning systems

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