JP6496610B2 - Waste gypsum paper recycling equipment - Google Patents

Description

  The present invention relates to a recycling machine for waste gypsum paper, and in particular, roughly crushing waste material of gypsum board, separating it into waste gypsum powder and waste paper, and removing the residual gypsum content of the waste paper as much as possible while forming waste paper The present invention relates to a recycling apparatus for waste gypsum paper that is intended to minimize crushing of paper fibers.

  In construction work such as renovation and demolition of buildings, waste materials of gypsum board are generated. This waste gypsum board is made of hardened plaster gypsum and paper pasted on both sides, so if gypsum and paper can be separated with high purity, it is preferable from the point of resource reuse. Become. At the same time, it is preferable from the viewpoint of the environment that waste is reduced.

  Therefore, conventionally, in the waste gypsum board separation process, after the waste gypsum board is crushed, it is separated into waste gypsum and waste paper. It is used as a material for recycled products.

Patent Document 1 discloses such waste gypsum board separation processing technology.
In the separation processing technique described in Patent Document 1, a quantitative supply device having a hopper, a bottom belt conveyor, and a cutting machine, a trommel-type primary sieving device, a biaxial compression crushing roll, and a protruding crushing roll 2 A crushing and separating apparatus having a stage screw conveyor and a screen therebetween, and a secondary sieve apparatus such as a vibration type are arranged in this order.

  As a processing step, first, cutting and quantitative supply are performed with a quantitative supply device, then gypsum powder is first separated with a primary sieving device, and then a paper piece is separated with a disintegration and separation device. Finally, the waste gypsum board is separated and collected into gypsum powder, paper pieces, and residues by the process of separating gypsum powder and residues with a secondary sieving device.

  As a result, waste gypsum board lump can be separated in a large amount, stably and efficiently, suppressing gypsum powder mixed in recovered paper, and effectively removing foreign matter mixed in recovered paper and gypsum powder. Can be suppressed.

JP 2012-24690 A

  As described above, according to Patent Document 1, waste gypsum board lump can be separated in a large amount, stably and efficiently, and the gypsum powder mixed in the collected paper is suppressed, and the collected paper and gypsum powder are collected. In recent years, not only waste gypsum but also waste paper is being collected and recycled, instead of simply being collected and discarded or burned. Yes.

  As a condition for the recycling, there is a tendency to demand a paper fiber that is as long as possible and has as little gypsum adhesion as possible. Since the waste paper contains about 10% by weight, it is desirable to remove the gypsum as much as possible and collect it.

  To that end, if the paper is forcibly and violently peeled off, the adhesion of the powder will be less. However, such a peeling method has a problem that the fibers are short and the size of the paper is small, and the amount of paper dust as dust is increased. In other words, there is also a demand for paper that is large even if some powder adheres to the treated paper and that has a small amount of paper dust.

  Accordingly, an object of the present invention is to provide a recycling apparatus for waste gypsum paper that can remove the residual gypsum content of the waste paper as much as possible and at the same time minimize the crushing of the paper fibers forming the waste paper.

  In order to achieve the above-mentioned object, the present invention provides a method for roughly crushing waste material of gypsum board, separating it into waste gypsum powder and waste paper, and remaining the waste paper by a rotary crushing drum that crushes the waste paper while rotating. A recycling apparatus for waste gypsum paper that removes gypsum and minimizes the crushing of the paper fibers that form the waste paper, wherein the rotary crushing drum is formed into a gentle spiral around the inner periphery of the drum A drum main body having a plurality of hitting baffle plates, and a hitting blade provided on a rotating shaft provided concentrically with the drum main body and rotating in a direction opposite to the rotation direction of the drum main body. Waste paper put into the drum by the hitting blades, crushed and crushed into paper pieces of a predetermined size, and gypsum powder adhering to the paper pieces is scraped off and discharged. A playback device Than is.

  In the above configuration, the striking blade is provided in a spiral shape on the rotating shaft.

  The striking blade is characterized in that the tip portion swings around the blade fulcrum.

  The rotary crushing drum is characterized in that the inclination angle of the drum inlet can be adjusted by an angle fulcrum.

  The recycling apparatus for waste gypsum paper further includes a trommel that sieves the paper pieces discharged from the rotary crushing drum and separates and discharges the paper pieces and gypsum powder.

  Further, the trommel is characterized in that it has a lifting blade disposed concentrically with the trommel.

  In this way, the present invention roughly separates gypsum board waste material into waste gypsum powder and waste paper, and removes the remaining gypsum content of the waste paper by a rotary crushing drum that crushes the waste paper while rotating. A waste gypsum paper recycling apparatus that minimizes crushing of paper fibers forming the waste paper, wherein the rotary crushing drum has a plurality of impacts formed in a gentle spiral shape on the inner periphery of the drum A drum main body having a baffle plate, and a striking blade provided on a rotating shaft provided concentrically with the drum main body and rotating in a direction opposite to the rotation direction of the drum main body, by the striking baffle plate and the striking blade Since the waste paper put in the drum is hit, broken and crushed into a paper piece of a predetermined size, the gypsum powder adhering to the paper piece is scraped off and discharged, so that the remaining gypsum content of the waste paper can be as much as possible. At the same time to remove The crushing of the paper fibers to form a waste paper can be minimized.

1 is a schematic configuration diagram illustrating a schematic configuration of a recycling apparatus for waste gypsum paper according to an embodiment of the present invention. It is a figure which shows the some baffle baffle plate provided in the outer diameter inside of a drum main body. It is a figure which shows the state which changed the inclination-angle of the rotary crushing drum by using an angle fulcrum as a fulcrum. It is the schematic block diagram which looked at the recycling apparatus for waste gypsum paper of FIG. 1 from the right side surface side.

  Hereinafter, a waste gypsum paper recycling apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

<Outline of the present invention>
The recycling apparatus for waste gypsum paper of the present invention removes residual gypsum adhering to the waste paper with a rotary crushing drum, and rotates and crushes them while minimizing the crushing of paper fibers forming the waste paper. It is rotated and discharged to the exit side of the drum. The gypsum powder scraped off and discharged by the rotary crushing drum is sieved with a perforated trommel to separate the gypsum powder and the paper piece and discharged. In addition, as the pre-stage treatment, it is assumed that the waste material of gypsum board is roughly crushed and separated into waste gypsum powder and waste paper.

<Configuration>
FIG. 1 is a schematic configuration diagram showing a schematic configuration of a recycling apparatus for waste gypsum paper according to an embodiment of the present invention.

  As shown in FIG. 1, the waste gypsum paper recycling apparatus 1 is generally configured as follows. That is, the waste gypsum paper recycling apparatus 1 breaks and crushes the used waste paper into a predetermined size by using a striking means, scrapes the gypsum powder adhering to the paper, and discharges it to the drum outlet 130. The rotary crushing drum 100 and the trommel 200 that sifts the gypsum powder discharged from the rotary crushing drum 100 and discharges a piece of paper from which the gypsum powder has been scraped off.

  In the above configuration, the rotary crushing drum 100 includes the drum body 110 and the striking unit 120. As will be described later, a striking means is constituted by a striking baffle plate 111 provided on the drum body 110 and a striking blade 121 provided on the rotating shaft of the striking portion 120, and the striking means strikes the waste paper that has been input. Then, it is crushed and crushed into paper pieces of a predetermined size, and the gypsum powder adhering to the paper pieces is scraped off and discharged.

  As shown in FIG. 2, the drum main body 110 is provided with a plurality of striking baffle plates 111 inside the outer diameter thereof.

  The impact baffle plate 111 is provided in a gentle spiral shape in the axial direction of the drum main body 110 while maintaining a constant interval. This is because the waste paper is struck in cooperation with the blow blade 121 described later, and the smooth movement of the waste paper in the rotary crushing drum 100 is hindered to promote the separation of the paper piece and the gypsum powder.

  The reason why the hitting baffle plate 111 is arranged in a spiral shape is to improve the efficiency of breaking and crushing with the hitting blade 121 of the hitting portion 120 described later, and to make it easier to discharge the pulverized material to the drum discharge port 130. Because.

  A hopper 141 is provided at the drum insertion port 140 on the opposite side of the drum discharge port 130 of the drum main body 110, and a fixed amount of waste paper is supplied from the hopper 141 into the drum main body 110. The drum main body 110 rotates by driving the drive motor 150 shown in FIGS.

  The striking portion 120 is disposed concentrically with the drum 110. The striking unit 120 includes a striking blade 121 and a rotating shaft 122 on which the striking blade 121 is provided.

  As shown in FIGS. 1 and 4, the striking blade 121 is composed of a plurality of blades (six blades in the figure), and is provided in a spiral shape stepwise with respect to the axial direction of the rotating shaft 122. This is in order to create an axial emission driving force.

  As shown in FIGS. 1 and 4, the rotary shaft 122 is connected to the drive motor 160 via the pulley 125 on the drum discharge port 130 side, and the drive of the drive motor 160 is transmitted to the rotary shaft 122 by the pulley 125. Rotate by doing.

  When the rotating shaft 122 rotates, the striking blade 121 rotates at a high speed. Further, the blow blade 121 has a configuration in which a tip portion swings around a blade fulcrum 123. When a load is applied in the rotation direction with a large object or the like, the tip part swings around the blade fulcrum 123, and the striking force and the stirring effect increase.

  The drum body 110 and the striking part 120 have different rotation directions. That is, when the drum body 110 rotates in the clockwise direction, the striking portion 120 rotates in the counterclockwise direction opposite to the rotation direction.

  As shown in FIG. 3, the rotary crushing drum 100 including the drum body 110 and the striking unit 120 can arbitrarily change the inclination angle with the angle fulcrum 170 as a fulcrum. That is, by raising the drum insertion port 140 with the angle fulcrum 170 as a fulcrum, the discharge speed of waste paper and the like is increased, the size at the time of paper discharge is maintained, damage is reduced, and the subsequent recycling needs are met. be able to.

  On the other hand, as described above, the trommel 200 sifts the gypsum powder scraped off and discharged by the rotary crushing drum 100 and discharges a piece of paper from which the gypsum powder has been scraped off. 220.

  The trommel main body 210 is a cylindrical drum-shaped perforated trommel, and is itself inclined downward toward the trommel outlet 230.

  The blade portion 220 includes a scraping blade 221 and a rotating shaft 222 on which the scraping blade 221 is provided.

  As shown in FIGS. 1 and 4, the scraping blade 221 is composed of a plurality of blades (four blades in the drawing), and a plurality (four in the drawing) are spaced from each other in the axial direction of the rotating shaft 122. ) Is provided.

  The trommel main body 210 and the blade part 220 rotate in the same direction by the drive of the drive motor 240 shown in FIG. By rotating the trommel main body 210 and the blade part 220, the effect of loosening the lump waste paper in the trommel 200 is increased.

  A discharge screw 300 is disposed below the trommel 200 to receive residual gypsum and paper dust that are screened off from the trommel. The screw discharge port 310 of the discharge screw 300 is provided with a dust collector (not shown), and the residual gypsum and paper dust that have been screened off from the trommel 200 to the discharge screw 300 and floated are sucked by this dust collector. To discharge.

  On the other hand, the piece of paper from which the remaining gypsum and paper dust have been removed is discharged from the trommel outlet 230 of the trommel main body 210.

<Operation>
Hereinafter, the operation of the recycling apparatus for waste gypsum paper according to the embodiment of the present invention will be described.

  First, the paper in the waste gypsum is loaded into the hopper 141 of the drum slot 140. The input paper is fed into a rotary crushing drum 100 that rotates approximately in the horizontal direction, and is broken and pulverized by the action of the impact blades 121 that rotate at high speed and the impact baffle plate 111 inside the outer ring of the drum main body 110, and simultaneously into the paper. Adhering and adhering gypsum powder is also scraped off.

  By this action, the residual gypsum content of the waste paper can be removed as much as possible, and at the same time, the paper fiber forming the waste paper can be minimized.

  At this time, the drum main body 110 rotates at a low speed, and the input paper is crushed by using the baffle baffle plate 111 in the drum main body 110 as a guide.

  The striking blades 121 in the drum main body 110 are arranged in a spiral shape so that they can be easily discharged. Therefore, the loaded paper is crushed using the striking baffle plate 111 as a guide and the striking blades arranged in a spiral shape. The paper / gypsum powder rotates along the drum 121 to the drum discharge port 130 and finally is discharged from the drum discharge port 130 to the trommel 200.

  The gypsum powder and paper dust that have been scraped off and discharged by the rotary crushing drum 100 are sieved by the trommel 200 and dropped onto the discharge screw 300, and the dust collector provided at the screw discharge port 310 of the discharge screw 300 is sieved off. The remaining gypsum and paper dust that is floating is sucked out and discharged to the outside.

  On the other hand, since the blade portion 220 rotates together with the trommel main body 210, the piece of paper from which the remaining gypsum and paper dust have been removed is loosened even if it becomes a lump in the trommel 200. Since the trommel main body 210 is inclined downward toward the trommel discharge port 230, the pieces of paper from which the paper dust has been removed sequentially move toward the trommel discharge port 230, and finally are discharged from the trommel discharge port 230. Is done.

  In this way, the waste paper input by the striking means is broken and pulverized into a paper piece of a predetermined size, and it has a rotary crushing drum that scrapes off and discharges the gypsum powder adhering to the paper piece. While removing as much of the gypsum as possible, it is possible to minimize crushing of the paper fibers forming the waste paper.

DESCRIPTION OF SYMBOLS 1 Recycle apparatus for waste gypsum paper 100 Rotating crushing drum 110 Drum main body 111 Baffle baffle plate 120 Blowing part 121 Blowing blade 122 Rotating shaft 123 Blade fulcrum 125 Pulley 130 Drum discharge port 140 Drum insertion port 141 Hopper 150 Drive motor (for drum main body)
160 Drive motor (for rotating shaft)
170 Angular fulcrum 200 Trommel 210 Trommel main body 220 Blade part 221 Raising blade 222 Rotating shaft 230 Trommel discharge port 240 Drive motor 300 Discharge screw 310 Screw discharge port

Claims (6)

Paper that forms the waste paper by roughly crushing the waste material of the gypsum board, separating it into waste gypsum powder and waste paper, removing the residual gypsum content of the waste paper with a rotary crushing drum that crushes the waste paper while rotating A waste gypsum paper recycling device designed to minimize fiber crushing,
The rotary crushing drum is
A drum body having a plurality of striking baffles formed in a gentle spiral shape on the inner periphery of the drum;
A striking blade provided on a rotating shaft provided concentrically with the drum body and rotating in a direction opposite to the rotating direction of the drum body,
Using the baffle baffle and the striking blade, the waste paper thrown into the drum is hit, broken and crushed into a paper piece of a predetermined size, and the gypsum powder adhering to the paper piece is scraped off and discharged. Recycling device for waste gypsum paper.   The recycling apparatus for waste gypsum paper according to claim 1, wherein the blow blades are provided in a spiral shape on the rotating shaft.   The waste plaster paper recycling apparatus according to claim 1 or 2, wherein the blow blade has a configuration in which a tip portion swings around a blade fulcrum.   2. The recycling apparatus for waste gypsum paper according to claim 1, wherein the rotary crushing drum is capable of adjusting an inclination angle of a drum inlet by an angle fulcrum.   The waste gypsum paper recycling apparatus further includes a trommel that sifts through a piece of paper discharged from the rotary crushing drum and separates and discharges the paper piece and gypsum powder. Recycler for gypsum paper.   The recycling apparatus for waste gypsum paper according to claim 5, wherein the trommel has a scraping blade disposed concentrically with the trommel.

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