31
PERFORATED SCREEN WITH REINFORING SHEET
PROFILE BAR (WEDGEWIRE) SCREEN
SCREW-TO-SCREEN CLEARANCE
Generally the clearance between the screw and the screen is 1/32", plus or minus
1/32". The screw should not rub the screen hard, as it can cause wear and
premature failure of the screen. Tighter clearance is used with materials that blind
the screen, such as onion skins. Greater clearance, 1/16", is used with eggshells,
pectin, xanthan gum, and corn husk. With a clearance greater than 3/16", the
dewatering performance of the press can start to deteriorate; this depends a lot on
the type of material being dewatered.
On KP-24 and KP-30 presses, the screw-to-screen clearance is larger. It can be
checked by removing one half of the screen and bolting the other half tight to the
resistor bars. Inspection is made from the side from which the screen half has
been removed.
To measure the s2s clearance in wedgewire screens, a feeler gauge can be
slipped through and along a slot until it hits the edge of the screw. Measure from
To Next Page
Loading...
Need help?
General