Patent ID: 8449722
Filing Date: 2013-05-28
Classification: D21B,D21C,D21F,D21H,Y02W

Abstract:
1. A used paper recycling apparatus comprising, in an apparatus case of furniture size, a pulp making section for manufacturing used paper pulp by macerating and mashing used paper, a paper making section for manufacturing recycled paper by making the used paper pulp manufactured in the pulp making section, and a control section for driving and controlling the pulp making section and paper making section by interlocking, wherein the pulp making section comprises a macerating unit for macerating the used paper by agitating and tearing, and a mashing unit for mashing the used paper macerated in the macerating unit, and the mashing unit has at least one mashing machine, and this mashing machine includes a fixed mashing member and a rotatable mashing member disposed oppositely across a slight mashing clearance between opposing faces of these mashing members that are relatively movable and cooperate to form mashing action surfaces, and the mashing action surfaces are formed in a taper shape gradually increased in diameter toward the mutually opposite directions, and the mashing clearance of conical shape is formed between the mashing action surfaces, the used paper passing the mashing clearance is pressurized and mashed by the mashing action surfaces, to form a used paper pulp, and the mashing unit comprises a feed port and a discharge port communicating with each other allowing circulation of the used paper pulp through the mashing unit, such that used paper pulp passes directly from the discharge port to the macerating unit, and directly from the macerating unit to the feed port.