Pulp feeder for used paper recycling apparatus

Abstract

A pulp feeder capable of obtaining recycled paper of uniform texture, stable in the weight of the wet paper made on a mesh belt, in a very narrow used paper processing space of furniture size. A pulp feeding unit (pulp feeder) includes a retention unit disposed slidably on the upper side of an running mesh belt, for retaining a pulp suspension sent from a pulp manufacturing unit, and a paper making frame body for defining the supply width of the pulp suspension on the upper side of the mesh belt, in which the leading end position of this paper making frame body is provided with an overflow unit for keeping constant the water level of the pulp suspension retained in the retention unit. The pulp suspension supplied in the retention unit is retained to the water level defined the overflow unit, and is uniformly dispersed and supplied on the upper side of the mesh belt by cooperative action of this retention action and the running action of the mesh belt.

1 . A pulp feeder of a used paper recycling apparatus, being a device for composing a pulp feeding unit of a paper making device in a used paper recycling apparatus of furniture size to be installed at the site of origin of used paper, the paper making device being for manufacturing recycled paper by making from used paper pulp manufactured in a proceeding process of pulp manufacturing unit, comprising:
 a paper making frame body disposed slidably on the upper side of an endless mesh belt running in a paper making process unit, having a retention unit for retaining a slurry-like pulp suspension mixing the water and used paper pulp sent from the pulp manufacturing unit, and for defining the supply width of the pulp suspension on the upper side of the endless mesh belt,   wherein the leading end position of this paper making frame body is provided with overflow means for keeping constant the water level of the pulp suspension retained in the retention unit, and   the pulp suspension supplied in the paper making frame body is retained in the retention unit to the water level defined the overflow means, and is uniformly dispersed and supplied on the upper side of the endless mesh belt by cooperative action of this retention action and the running action of the endless mesh belt.   
     
     
         2 . The pulp feeder of a used paper recycling apparatus according to  claim 1 ,
 wherein the paper making frame body has its frame inside width dimension set at the width dimension of the recycled paper to be manufactured, and the supply width of the pulp suspension on the upper side of the endless mesh belt is defined.   
     
     
         3 . The pulp feeder of a used paper recycling apparatus according to  claim 1 ,
 wherein the overflow means is provided at both side walls of the retention unit at the leading end position of the paper making frame body, and includes an overflow gate for overflowing the pulp suspension when the water level of the pulp suspension retained in the paper making frame body exceeds a specific level, and a collection route passing to a collection port by way of the periphery of the paper making frame body from the outside of this overflow gate.   
     
     
         4 . The pulp feeder of a used paper recycling apparatus according to  claim 3 ,
 wherein the upper edge of the overflow gate is set to be horizontal and straight in a state of the paper making frame body installed on the endless mesh belt.   
     
     
         5 . The pulp feeder of a used paper recycling apparatus according to  claim 1 ,
 wherein the bottom of the paper making frame body is provided with a flat plate member for covering the mesh of the mesh belt in a closed state from the upper side, and the bottom of the retention unit is formed by this flat plate member and the running endless mesh belt,   and the pulp suspension supplied in the paper making frame body is retained in the retention unit to a water level defined by the overflow means, and is uniformly dispersed and supplied on the upper side of the endless mesh belt by cooperative action of this retention action and the running action of the endless mesh belt.   
     
     
         6 . The pulp feeder of a used paper recycling apparatus according to  claim 5 ,
 wherein the leading end edge of the flat plate member of the paper making frame body is provided with a thin guide sheet for assuring a smooth flow of the pulp suspension on the mesh belt.   
     
     
         7 . The pulp feeder of a used paper recycling apparatus according to  claim 1 ,
 wherein the upstream side of the retention unit in the paper making frame body is provided with a meandering flow passage for promoting uniform dispersion of the supplied pulp suspension, and preventing disturbance of the pulp suspension.   
     
     
         8 . The pulp feeder of a used paper recycling apparatus according to  claim 7 ,
 wherein the meandering flow passage is provided in a zigzag form in a vertical direction between the supply port of the pulp suspension of the paper making frame body and the retention unit.   
     
     
         9 . (canceled) 
     
     
         10 . The pulp feeder of a used paper recycling apparatus according to  claim 1 ,
 wherein the lower side of the running endless mesh belt is provided with a partition plate member disposed slidably.   
     
     
         11 . The pulp feeder of a used paper recycling apparatus according to  claim 10 ,
 wherein the partition plate member is formed in a louver structure for slidably supporting the lower side of the endless mesh belt.   
     
     
         12 . The pulp feeder of a used paper recycling apparatus according to  claim 1 ,
 wherein the endless mesh belt is disposed upward and obliquely toward the running direction.   
     
     
         13 . A paper making device of a used paper recycling apparatus, being a paper making device for composing a used paper recycling apparatus of furniture size to be installed at the site of origin of used paper, for manufacturing recycled paper by making from used paper pulp manufactured in a proceeding process of a pulp making device, comprising:
 a paper making process unit for producing wet paper by making from a slurry-like pulp suspension mixing water and used paper pulp sent from the pulp making device,   wherein this paper making process unit has a paper making conveyor for conveying while making the pulp suspension, and a pulp feeding unit being installed at a paper making process start end position of the paper making conveyor, for feeding the pulp suspension from the pulp making device to the paper making conveyor, and   this pulp feeding unit is composed of the pulp feeder of any one of  claims 1  to  5  and  10  to  12 .   
     
     
         14 . A used paper recycling apparatus, comprising:
 in an apparatus case of furniture size, a pulp making unit for manufacturing used paper pulp by macerating and beating used paper, a paper making unit for manufacturing recycled paper by making from the used paper pulp manufactured in the pulp making unit, and a control unit for driving and controlling the pulp making unit and the paper making unit by interlock,   wherein the paper making unit is composed of the paper making device of  claim 13 .