Environmental and process air treatment systems

Strengths and Characteristics

Systems designed for overall treatment of the production line

  • Flexibility
  • Energy and process efficiency
  • Preset thermo-hygrometric conditions easily reached


The filtration and conditioning system is demonstrated considering the entire production line composed of:

  • Opening
  • Mixing
  • Preparation
  • Carding
  • Rowing
  • Spinning
  • Open-end
  • Winding

The design was developed by merging flexibility and the need for standardisation. The control units are installed outside. The various processing phases include different thermo-hygrometric conditions. Therefore, the relevant dimensioning at the air flow rates is calibrated in the supply/return phase to control the air volumes intended for each zone.
The spinning production process includes considerable volumes of technological air, i.e. air used by the machines for their operation, high enthalpic content. As a result, the design includes total re-use of this energy, giving considerable savings.
The Canalair module includes both the pre-filtration step (installing flat pre-filters and cyclone pre-separators) and the filtration step (self-cleaning automatic filter) and micro-filtration (set of static filters with controlled selectivity).
The technological air on the one side and environmental air on the other, having passed through the filtration phase, is automatically managed by the processor of the conditioning control unit, which will choose whether to re-use the volumes of extracted air in a total or partial manner.
The system is controlled and managed using electronic probes on site, connected online to the air treatment system. The rapidness of reading and transmission to the processor allow maintained humidity and temperature setpoints, reducing to a minimum the risk of “swinging”.

Main parts

  • Flat pre-filters
  • Automatic filter
  • Return fan
  • Shutters to adjust ejection, recirculation and intake of external air
  • Micro-filtration
  • Supply air fan
  • Adiabatic humidifier
  • Energy Saving package
  • Electric box and instrumentation

Intended applications and sectors

  • Cotton spinning
  • Regenerated fibres spinning
  • Open end

Performance and Dimensions

  • Total air flow rate: 1,500,000 m3/h
  • Kw installed: 575
  • Kw absorbed: 482
  • Winter-summer conditions guaranteed: relative humidity from 50% to 65% and temperature from 22°C to 27 °C