Patent ID: 8852403
Filing Date: 2014-10-07
Classification: B30B,D21C,D21F

Abstract:
1. A twin wire press comprising top and bottom endless wires for separating solid and liquid from a primary solid-liquid suspension, the twin wire press comprising: a web formed between said wires; a support defined by a first support section comprising a lower and upper extremity and a second support section adjacent said first support section, said second support section comprising a bottom frame; a first dewatering section mounted to the support and including a wedge area which has an inlet and an outlet and a wedge interspace between said wedge inlet and said wedge outlet, said first dewatering section including first and second tension roll assemblies mounted to the support upstream from the wedge inlet for directing respectively the top and bottom endless wires into the wedge interspace for movement from the inlet to the outlet thereof; the wedge interspace acting on the top and bottom wires in movement therein for collecting a first quantity of liquid from the primary solid-liquid suspension received therein so as to yield at the outlet a secondary solid-liquid suspension which is denser than the primary solid-liquid; a secondary dewatering section mounted to the bottom frame adjacent the outlet of the first dewatering section for receiving the secondary solid-liquid suspension therefrom wherein no additional frame member is positioned over said secondary dewatering section; the secondary dewatering section having a press roll assembly including press rolls which are all mounted on the bottom frame; the top and bottom wires cooperating in movement with the press rolls to further extract liquid from the secondary solid-liquid suspension to yield a tertiary solid-liquid suspension; and a drive roll mounted to the support that cooperates with first and second tension roll assemblies to move the top and bottom wires from the inlet of the wedge interspace to the second dewatering section via the outlet of the wedge interspace then back to the inlet of the wedge interspace.