The pushers operate by depositing feed slurry on a wedge slot filtration screen. The solids collect on the screen and feed liquors drain out. The pusher plate rotates with the basket and reciprocates. On the forward stroke, the plate pushes solids along the screen, consolidating into a uniform cake. On the reverse stroke, fresh screen is exposed where more slurry separates. Cake dries as it moves along the length of the screen and a wash liquor may be sprayed to remove impurities. Cake is pushed off the edge of the screen at the end of the basket and directed to the discharge for collection.
B&P Process Equipment and Systems, LLC, 1000 Hess St., Saginaw, MI 48601. Tel: 517-757-1300. Fax: 517-757-1301.