Textile Yarn Spinning

Preparation - Blow room opening and blending

The preparation area starts with bales of staple fibres which can be from natural materials such as cotton or from man-made materials such as polyester. The bales are opened and the fibre conveyed to equipment that open the tufts of fibres into individual fibres. Various fibres may be blended together. The fibres are pneumatically conveyed from one machine to another. The machine extract air is some of the most polluted air in the entire Spinning process, making the demand for filtration and fibre recovery one of the the highest.

Fibre Depositing Plant (FDP) or Waste Collection is the key here. The specific solution for this part of the process requires supplying cleaned and conditioned air through well-designed ducting for even distribution and sufficient air changes per hour in the space.

Luwa supplies filters to remove airborne fibres and fine dust to meet required dust levels for personnel protection. Humidity and temperature are controlled for good fibre handling in accordance with machinery manufacturers requirements. Return ducting is required along with the suction ducts from condensers to return the air back to the filters.

The process requires air-conditioning to meet cooling load demand of

  • The installed opening and blending equipment
  • Lighting
  • Personnel occupancy
  • Outdoor design conditions

Luwa supplies the RPF rotary prefilter, the LDF rotary drum filter (or alternately the MCV or APF compact filters) for primary filtration. The FDF Fine Dust Filter and WSA waste separator are applied for waste dust removal and fibre reclaim.

The Luwa Air Washer is applied for controlling temperature and humidity. Luwa B600 axial flow fans are used for primary air movement with ducting used for conveying fibre and distributing air in this manufacturing process.

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