JP2013096032A - Foreign material removal tank for waste paper recycling apparatus and waste paper recycling apparatus for shredded document using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foreign material removal tank for waste paper recycling apparatus with excellent maintenability capable of effectively removing foreign material in a suspension liquid of recycling pulp, and to provide a waste paper recycling apparatus for shredded documents using the same.SOLUTION: A waste paper recycling apparatus comprises: a storage container; a screening device disposed over the storage container; a liquid feeding pipe for feeding a recycling pulp suspension liquid to the screening device; and a liquid discharging pipe for discharging the recycling pulp suspension liquid, from which foreign material has been removed by the screening device, into the storage container. The screening device comprises: a screening container with a flexible bottom surface; a screening plate attached to an inner side between the upper end and the lower end of the screening container for removing foreign material; a vibration frame member which is attached to the outside of the screen container and which includes a projecting part for pressing the flexible bottom surface; and driving means for vibrating the vibration frame member.

Description

  The present invention relates to a foreign matter removal tank for used paper recycling apparatus used in a used paper recycling apparatus for recycling document shredded waste into a toilet paper roll, and a used paper recycling apparatus for document shredded waste using the same.

  In view of the fact that document shredder has not been sufficiently recycled in the past, if the document shredder is recycled to relatively low quality recycled paper such as toilet paper, the waste paper recycling process can be omitted and an apparatus By reducing the size and simplification of documents, it is possible to recycle document shredded waste in units of organizations such as companies, government offices, associations, housing estates, or local governments, saving resources and energy, and collecting used paper In order to reduce the time and labor required for this, a method for recycling used paper for shredded documents as shown in Patent Document 1 has been proposed.

  Further, the present applicant has proposed a waste paper recycling apparatus for shredded documents as shown in Patent Document 2 in order to solve various problems in putting the above proposal into practical use. Furthermore, the present applicant has also proposed a waste paper recycling apparatus for document shredded waste as shown in Japanese Patent Application No. 2010-212055.

  In the case of the above-mentioned waste paper recycling device for shredded documents, if the shredded paper supplied from the hopper contains foreign matter other than paper, it may accumulate at the bottom without being disassembled, There was a problem of clogging.

  In order to solve the above problems, the applicant of the present application has proposed a waste paper recycling apparatus for document shredding scraps provided with a swing filtering device as shown in Patent Document 3.

  However, in the case of the waste paper recycling apparatus for shredded documents provided with the swing filter device as shown in Patent Document 3, if the foreign matter accumulates in the screen fence as the filtering means and becomes clogged, the swing filter device itself is removed. Maintenance had to be done, and maintenance work was difficult.

  Further, in the case of the waste paper recycling apparatus for document shredded waste provided with the above-described swing filtration device, there is also a problem that the power consumption is large because the cylindrical mesh basket as the filtering means is swung.

  Furthermore, in the case of the waste paper recycling apparatus for document shredded waste provided with the above-mentioned swing filtration device, it swings while immersing the cylindrical screen that is the filtering means, so that it easily receives the resistance of water, and it is extra. There was also the problem of requiring power.

JP 10-317290 A JP 2006-169710 A JP 2008-133564 A

  The present invention has been made in view of the above-mentioned problems. The foreign matter removal tank for used paper recycling apparatus, which efficiently removes foreign matter in the recycled pulp suspension and has excellent maintainability, and document details using the same. An object of the present invention is to provide a waste paper recycling apparatus for scrap.

In order to solve the above problems, the foreign matter removal tank for used paper recycling apparatus of the present invention is:
Waste paper used to remove foreign matter in recycled pulp suspension used in document waste paper recycling equipment for breaking up waste paper into recycled pulp suspension and making recycled paper from the recycled pulp suspension A foreign matter removal tank for a regenerator, comprising a storage container, a screen device provided above the storage container, a liquid supply pipe for supplying a regenerated pulp suspension to the screen device, and the screen device A liquid discharge pipe for discharging the regenerated pulp suspension from which foreign matter has been removed to the storage container, the screen device having a flexible bottom surface, and an upper end and a lower end of the screen container A screen plate for removing foreign substances, and a convex portion for pressing the flexible bottom surface, which is attached to the outside of the screen container. And a driving means for vibrating the vibrating frame member, and the vibrating frame member vibrates and the convex portion presses the flexible bottom surface of the screen container. The recycled pulp suspension from the liquid supply pipe supplied to the screen container is vibrated, and foreign matter is removed by the screen plate.

  In this way, the vibrating frame member vibrates and the convex portion presses the flexible bottom surface of the screen container, so that the recycled pulp suspension from the liquid supply pipe supplied to the screen container vibrates. Therefore, it is not necessary to vibrate the cylindrical filtering means itself as shown in Patent Document 3, which saves power. Also, since the screen container can be removed and cleaned, it is excellent in maintainability.

  The screen plate may be a screen plate having a filtration function for removing foreign substances, and is preferably a porous plate, a mesh plate, or a sieve plate.

  The flexible bottom surface is waterproof and airtight as the bottom surface of the screen container, and may be flexible. For example, the flexible bottom surface is preferably made of rubber or flexible plastic.

  Preferably, the screen container includes a canopy, the liquid supply pipe is attached to the canopy, and the liquid discharge pipe is attached between a screen plate and a flexible bottom surface of the screen container. If it does in this way, the regenerated pulp suspension from which the foreign material was removed by filtering with the screen board can be discharged | emitted to the said storage container.

  The screen plate of the screen container is a detachable screen plate, and the detachable screen plate is provided on the screen plate main body, the screen plate frame to which the screen plate main body is attached, and the screen plate frame. A handle member, and may be configured to be detachably attached to the screen container. As described above, since the screen plate can be easily removed, there is an advantage that maintenance properties such as cleaning are further improved.

  Furthermore, an overflow pipe is provided in the vicinity of the upper end of the screen container, and when the recycled pulp suspension supplied from the liquid supply pipe is about to overflow from the screen container, it is discharged to the storage container through the overflow pipe. It is preferable to configure so that. In this way, the regenerated pulp suspension that is about to overflow from the screen container is discharged to the storage container through the overflow pipe. Note that the regenerated pulp suspension discharged through the overflow pipe to the storage container is not filtered by the screen plate, but the regenerated pulp suspension overflowing is a very small amount, and the screen container There is no special problem because it becomes a supernatant portion of the regenerated pulp suspension accumulated in the tank.

  Further, it is more preferable to provide sensor means for detecting the regenerated pulp suspension passing through the overflow pipe so that the overflow can be detected.

  Preferably, the storage container includes a stirring rod, and the vibration of the vibrating frame member and the stirring of the stirring rod are performed by the same drive motor. By vibrating the vibration frame member and stirring the stirring rod by the same drive motor, there is an advantage that power saving, space saving, and weight reduction are achieved.

  The waste paper recycling apparatus for document shredder according to the present invention is characterized by incorporating the above-described foreign matter removal tank for waste paper recycling apparatus. As described above, by incorporating the foreign matter removal tank for used paper recycling apparatus, there is an advantage that the foreign matter in the recycled pulp suspension can be efficiently removed and is excellent in maintainability.

  According to the foreign matter removal tank for used paper recycling apparatus of the present invention and the used paper recycling apparatus using the same, there is a remarkable effect that the foreign matter in the recycled pulp suspension is efficiently removed and the maintainability is excellent.

FIG. 2 is a schematic perspective view of a main part showing a state in which the canopy of the screen container is removed, showing one embodiment of the foreign matter removing tank for used paper recycling apparatus of the present invention. It is a front view which shows one Embodiment of the foreign material removal tank for used paper recycling apparatuses of this invention. It is a side view which shows one Embodiment of the foreign material removal tank for used paper recycling apparatuses of this invention. It is a top view which shows one Embodiment of the foreign material removal tank for used paper recycling apparatuses of this invention. It is a top view which shows one embodiment of a screen board. The enlarged view of the baseplate part of the convex part of a vibration frame member is shown, (a) is a top view (b) is a side view. It is a schematic sectional side view which shows the state which a vibration frame member vibrates and a convex part presses the flexible bottom face of a screen container, (a) shows before pressing (b). It is a perspective view which shows one embodiment of a detachable screen board. It is a perspective view which shows the place which attaches a detachable screen board to a screen container. It is a perspective view which shows the place which attached the detachable screen board to the screen container. It is a perspective view which shows the place which attached the detachable screen board to the screen container, and attached the canopy.

  Embodiments of the present invention will be described below, but these embodiments are exemplarily shown, and it goes without saying that various modifications can be made without departing from the technical idea of the present invention.

  In the figure, reference numeral 10 denotes an embodiment of the foreign matter removal tank for used paper recycling apparatus of the present invention.

  As shown in FIGS. 1 to 4, the foreign matter removal tank 10 for used paper recycling apparatus disassembles the used paper to obtain a recycled pulp suspension, and forms the recycled paper from the recycled pulp suspension. A foreign matter removal tank for used paper recycling apparatus for removing foreign matter in a recycled pulp suspension used in a recycling apparatus, a storage container 12, and a screen device 14 provided above the storage container 12, A liquid supply pipe 16 for supplying the regenerated pulp suspension to the screen device 14 and a liquid discharge pipe 18 for discharging the regenerated pulp suspension from which foreign matter has been removed by the screen device 14 to the storage container 12. The screen device 14 is attached to a screen container 22 having a flexible bottom surface 20 and an inner side between an upper end portion and a lower end portion of the screen container 22; A screen plate 24 for removing objects, a vibration frame member 28 which is attached to the outside of the screen container 22 and has a convex portion 26 for pressing the flexible bottom surface 20, and vibrates the vibration frame member 28. Drive means 30 for causing the vibration frame member 28 to vibrate and the convex portion 26 pressing the flexible bottom surface 20 of the screen container 22 to supply the screen container 22 to the screen container 22. The recycled pulp suspension from the liquid supply pipe 16 is vibrated, and foreign matter is removed by the screen plate 24.

  In the illustrated example, the screen container 22 includes a canopy 32 (not shown in FIG. 1), and the liquid supply pipe 16 is attached to the canopy 32 and connected to the storage container 12. The liquid discharge pipe 18 is attached between the screen plate 24 and the flexible bottom surface 20 of the screen container 22 and connected to the storage container 12. The canopy 32 is also provided with a concentration-adjusting water supply pipe 46 so that the concentration can be adjusted by supplying water as necessary.

  Further, an overflow pipe 34 is provided in the vicinity of the upper end of the screen container 22, and when the regenerated pulp suspension supplied from the liquid supply pipe 18 is about to overflow from the screen container 22, the overflow pipe 34. It is configured to be discharged to the storage container 12 through.

  In the illustrated example, sensor means 36 for detecting regenerated pulp suspension passing through the overflow pipe 34 is provided, and a regenerated pulp suspension passing through the overflow pipe 34 is provided by a laser sensor 38 and a receiver 40. Detect liquid. Accordingly, since the sensor means 36 can know that the recycled pulp suspension supplied into the screen container 22 is likely to overflow, the user opens the canopy 32 and removes the accumulated foreign matter. Or maintenance.

  Further, the storage container 12 includes a stirring rod 42, and the vibration of the vibration frame member 28 and the stirring of the stirring rod 42 are performed by the driving means 30 that is the same drive motor. That is, the drive means 30 performs both the action of moving the vibration frame member 28 up and down in small increments by the action of the gear mechanism 44 and the action of rotating and stirring the stirring rod 42.

  In the illustrated example, a porous plate as shown in FIG. 5 is used as the screen plate 24. As shown in FIG. 5, a large number of holes 48 are formed in the screen plate 24. For the screen plate 24, a metal plate such as an aluminum alloy or stainless steel can be used.

  In the illustrated example, an example of rubber is shown as the flexible bottom surface 20. 6A and 6B are enlarged views of the bottom plate portion 50 of the vibration frame member 28 having the convex portions 26 for pressing the rubber flexible bottom surface 20.

  Next, FIG. 7 shows a state where the vibration frame member 28 vibrates and the convex portion 26 shown in FIGS. 6A and 6B presses the flexible bottom surface 20 of the screen container 22. As shown in FIG. 7A, before pressing, the flexible bottom surface 20 is horizontal, but when pressed so as to be pushed up by the convex portion 26, as shown in FIG. The flexible bottom surface 20 has a raised shape at the center. As a result, the regenerated pulp suspension 52 in the screen container 22 is vibrated, and foreign matters 54 (for example, staples, clips, plastics, etc.) in the regenerated pulp suspension 52 are efficiently filtered and removed. The screen plate 24 is fixedly attached to the inside of the screen container 22 and does not vibrate.

  Thus, the regenerated pulp from the liquid supply pipe 16 supplied to the screen container 22 when the vibration frame member 28 vibrates and the convex portion 26 presses the flexible bottom surface 20 of the screen container 22. Since the suspension 52 is vibrated, it is not necessary to vibrate the filtering means per se as in the prior art, thus saving power. Moreover, since it is sufficient to remove the screen container 22 and clean it, it is excellent in maintainability.

  Next, in the foreign matter removing tank for used paper recycling apparatus of the present invention, examples in which the screen plate of the screen container is removable are shown in FIGS.

  8-10, the code | symbol 56 shows a detachable screen board. As shown in FIGS. 8 and 9, the detachable screen plate 56 has a screen plate main body 58 having a large number of holes 60 and the screen plate main body 58 attached thereto, like the screen plate 24. A screen plate frame 62 and a handle member 64 provided on the screen plate frame 62 are provided, and are detachably attached to the screen container 66. Reference numeral 68 denotes a protruding member provided on the lower surface of the screen plate frame 62.

  When the detachable screen plate 56 is attached to the screen container 66, it is as shown in FIG. Then, if the handle member 64 is grasped and the removable screen plate 56 is pulled up from the state of FIG. 10, it can be removed as shown in FIG. As described above, since the screen plate can be easily removed, there is an advantage that maintenance properties such as cleaning are further improved.

  Further, as well shown in FIG. 11, the canopy 70 can be attached to the screen container 66 in the same manner as the screen container 22. A liquid supply pipe 72 and a water supply pipe 74 are attached to the canopy 70.

  The foreign matter removal tank for used paper recycling apparatus of the present invention can also be applied to the used paper recycling apparatus for document shredded waste disclosed in Patent Document 2, and the used paper recycling apparatus for document shredded waste disclosed in Japanese Patent Application No. 2010-212055. It can also be applied to.

  When applied to the used paper recycling apparatus for shredded document disclosed in Patent Document 2, it is attached between the paper machine and the pulper disclosed in Patent Document 2, or between the first and second pulpers. Can be attached. In addition, when applied to the used paper recycling apparatus for shredded documents shown in Japanese Patent Application No. 2010-212055, it is attached between the grinder or concentration adjusting tank shown in Japanese Patent Application No. 2010-212055 and the paper machine. be able to.

  In this way, by incorporating in these apparatuses, the foreign material in the recycled pulp suspension can be efficiently removed, and a waste paper recycling apparatus for document shredded waste having excellent maintainability can be obtained.

  10: Foreign matter removal tank for used paper recycling apparatus, 12: Storage container, 14: Screen device, 16, 72: Liquid supply pipe, 18: Liquid discharge pipe, 20: Flexible bottom surface, 22, 66: Screen container, 24: Screen plate, 26: convex portion, 28: vibration frame member, 30: driving means, 32, 70: canopy, 34: overflow pipe, 36: sensor means, 38: laser sensor, 40: receiver, 42: stirring rod, 44: gear mechanism, 46, 74: water supply pipe, 48, 60: hole, 50: bottom plate portion, 52: regenerated pulp suspension, 54: foreign matter, 56: removable screen plate, 58: screen plate body, 62 : Screen plate frame, 64: Handle member, 68: Projection member.

Claims (9)

Waste paper used to remove foreign matter in recycled pulp suspension used in document waste paper recycling equipment for breaking up waste paper into recycled pulp suspension and making recycled paper from the recycled pulp suspension A foreign matter removal tank for a regenerator,
A storage container, a screen device provided above the storage container, a liquid supply pipe for supplying a regenerated pulp suspension to the screen device, and a regenerated pulp suspension from which foreign matter has been removed by the screen device A liquid discharge pipe for discharging to the storage container,
The screen device is attached to a screen container having a flexible bottom surface, an inner side between an upper end portion and a lower end portion of the screen container, and attached to an outer side of the screen container for removing foreign matter. A vibration frame member having a convex portion for pressing the flexible bottom surface, and a driving means for vibrating the vibration frame member,
When the vibration frame member vibrates and the convex portion presses the flexible bottom surface of the screen container, the regenerated pulp suspension from the liquid supply pipe supplied to the screen container is vibrated, A foreign matter removal tank for used paper recycling apparatus, wherein foreign matter is removed by a screen plate.   2. The foreign matter removal tank for used paper recycling apparatus according to claim 1, wherein the screen plate is a porous plate, a mesh plate, or a sieve plate.   The foreign matter removal tank for used paper recycling apparatus according to claim 1 or 2, wherein the flexible bottom surface is made of rubber or flexible plastic.   The screen container includes a canopy, the liquid supply pipe is attached to the canopy, and the liquid discharge pipe is attached between a screen plate and a flexible bottom surface of the screen container. The foreign matter removal tank for used paper recycling apparatuses of any one of 1-3.   The screen plate of the screen container is a detachable screen plate, and the detachable screen plate is provided on the screen plate main body, the screen plate frame to which the screen plate main body is attached, and the screen plate frame. A foreign matter removal tank for used paper recycling apparatus according to any one of claims 1 to 4, further comprising a handle member, and detachably attached to the screen container.   An overflow pipe is provided in the vicinity of the upper end of the screen container, and when the recycled pulp suspension supplied from the liquid supply pipe is about to overflow from the screen container, it is discharged to the storage container through the overflow pipe. The foreign matter removal tank for used paper recycling apparatus according to any one of claims 1 to 5, wherein the foreign matter removal tank is used.   7. A foreign matter removal tank for used paper recycling apparatus according to claim 6, wherein sensor means for detecting a recycled pulp suspension passing through said overflow pipe is provided so that overflow can be detected.   The said storage container is equipped with the stirring rod, The vibration of the said vibration frame member and the stirring of the said stirring rod were performed by the same drive motor, The any one of Claims 1-7 characterized by the above-mentioned. Foreign material removal tank for used paper recycling equipment.   A used paper recycling apparatus for shredded document waste, wherein the foreign matter removing tank for used paper recycling apparatus according to any one of claims 1 to 8 is incorporated.

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