dries paper web after passing a press section by adhering the web to a steam heated cylinder.
In the dryer section of paper machine, the paper sheet travels around large-diameter heated cylinders, remaining water is removed by evaporation.
So dryer screen must be heat resistant, rugged, and designed for both drying efficiently and evenly.
Dryer Screen including spiral dryer screen and Woven Dryer Screen
, flat woven dryer screen.
FUNCTIONS OF DRYER SCREEN
⇒ Supports sheet through dryer section – full support through Uno-run & Single Tier sections
⇒ Improves heat & mass transfer – better sheet contact on dryer can
Polyester yarns: Round/flat
Shed: 3-shed or 4-shed.
Layers: 1.5 layers , double layer and rectangular wire fabric.
Air-permibility: 100-850 CFM.
Major usage: Culture paper(middle/high speed)
Seam: Pin ring/Self pin/Spiral pin
Life time: 8 months to 24 months for general speed