Patent ID: 6782637
Filing Date: 2004-08-31
Classification: C04B,C08J,D21C,D21H,Y02W

Abstract:
A drying system for the processing of pulp into singulated and dried fibers comprising:a jet drier with a jet conduit, a pulp intake for delivery of pulp into the jet conduit, a manifold for air intake into the jet conduit, and a fiber outlet for removal of singulated and dried fibers, outlet air and fines from the jet conduit; a pulp supply station coupled to the pulp intake for supplying a feed pulp to the pulp intake, the pulp supply station including a treatment supply source for delivering a crosslinker to the pulp, the pulp supply station further including a first dewatering device and a second dewatering device in flow communication with the first dewatering device; the first dewatering device receiving a pulp supply having a liquid content, removing a portion of the liquid content, and sending a dewatered supply pulp to the second dewatering device; the treatment supply source delivering the treatment substance to the dewatered supply pulp prior to entry into the second dewatering device; and the second dewatering device removing additional liquid content from the treated and dewatered supply pulp and sending a treated feed pulp to the jet drier pulp intake; the pulp supply station further including a treatment recycle conduit in flow communication between the first dewatering device and the second dewatering device; and wherein the treatment recycle conduit delivers at least a portion of the additional liquid content from the second dewatering device to the first dewatering device; an air supply station coupled to the manifold for delivering air to the manifold; an outlet flow conduit coupled to the fiber outlet for the removal of the fibers, outlet air, and fines from the jet conduit; and a fiber separation station coupled to the outlet flow conduit for separating the fibers from the outlet air.