JP3268511B2 - Waste paper processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing apparatus for disposing of an enormous amount of waste paper generated in government offices and offices by a wet method.

[0002]

2. Description of the Related Art A huge amount of waste paper is generated every day in government offices and offices, but it is difficult to discard it mainly because of confidentiality. It is a reality. As a method of treating such waste paper, in general, incineration or shredding by a document cutting machine is performed. However, the treatment method by incineration is not suitable for suburban areas, but it is impossible for each office to have a small incinerator in central Tokyo because of safety and smoke exhaust treatment. Also, the processing method using a document cutting machine is an effective processing method from the viewpoint of confidentiality.However, since the waste paper is shredded in a dry state, the fibers of the waste paper are also cut at the same time. It is difficult for the waste paper to become a raw material for recycled paper. Further, the shredded paper pieces are bulkier after shredding than the state of the waste paper before shredding, and it is not easy to store and transport the waste.

[0003] In order to overcome such a situation, the present applicant disperses waste paper in a swirling flow generated by rotation of a stirrer in a surfactant solution to obtain a suspension of the disintegrated material. After
This defibrated material suspension water is introduced into a pressure vessel, compressed by a cylinder, dewatered, and formed into a defibrated material block of a predetermined size to store and transport waste after treatment. A waste paper processing apparatus which is easy to process and is suitable as a raw material for recycled paper, and which can increase the recovery rate and the production yield of waste paper pulp has been developed and has already been proposed (Japanese Patent Application Laid-Open No. Hei 5-
No. 2003377).

This will be described in more detail with reference to FIGS. 5 is a front sectional view showing the entire configuration of a conventional waste paper processing apparatus, FIG. 6 is a left side sectional view thereof, and FIG. 7 is a right side sectional view thereof. As is well known, the conventional waste paper processing apparatus 1 includes a waste paper supply unit A, a defibration unit B, a defibrated material compression unit C, a surfactant solution supply unit D, and a defibration unit from the upper part to the lower part in the main body. An object recovery unit E is arranged and configured.

The waste paper supply unit A has a waste paper insertion table 3 that can be concealed by the cover 2 and a waste paper feeder 4 that sends waste paper from the waste paper insertion table 3 to the subsequent defibrating unit B.

The defibrating unit B has the following configuration.
That is, a defibration tank 6 in which the surfactant solution 5 is stored,
A stirrer 7 and an ultrasonic oscillator 8 arranged at the bottom of the defibrating tank 6 to stir the surfactant solution 5 and a stirrer driving motor arranged at the lower surface of the defibrating tank 6 and directly connected to the rotating shaft of the stirrer 7. 9 and the defibrated material suspension water of the waste paper defibrated into small pieces or fibers in the surfactant solution in the defibrating tank 6 to the defibrated material compression section C in the subsequent stage by using the liquid pressure. Suspended water introduction port 10 for introduction of defibrated material and surfactant solution 5 in defibration tank 6
And a level switch 11 for detecting the water level of the water.

The defibrated material compression section C has the following configuration. That is, the defibrated material suspension water inlet 1 is disposed horizontally.
A cylindrical body 12 that communicates with the cylinder body 0 and is rotatably disposed in the cylindrical body 12 and driven by a motor (not shown) by belt conduction;
A screw conveyor 13 that conveys the defibrated material suspension water introduced from the defibrated material suspension water introduction port 10 toward the distal end of the cylindrical body 12.
And the middle portion communicates with the tip of the cylindrical body 12,
A pressure vessel 14 having both ends opened, a defibrated material pressing cylinder 15 which is disposed on the central axis of the pressure vessel 14 and has a piston inserted through one end of the pressure vessel 14, and on the central axis of the pressure vessel 14. A defibrated material backup cylinder 17 that is arranged so that a piston formed of a holding plate 16 can close the other end side opening of the pressure vessel 14, and a pressure vessel that is outside the other end side opening of the pressure vessel 14 and A defibrated material pushing cylinder 19 is disposed in a direction orthogonal to the central axis of the tubing 14, and is configured such that a piston made of the pushing plate 18 is movable along the other end side opening surface of the pressure vessel 14.

The surfactant solution supply section D has the following configuration. That is, a pump 20 and a pipe 22 for transporting the surfactant solution in the tank 20 to the defibrating tank 6 based on the detection result of the level switch 11 and the tank 20 storing the replenishing surfactant solution. A drain pipe 23 for returning the overflowed surfactant solution or the defibrated material suspension water into the tank 20, and an interface which is disposed below the defibrated material compression section C and leaks from the defibrated material compression system such as the pressure vessel 14. Activator solution or defibrated material suspension water in tank 20
And a drain pan 24 to be returned inside.

The defibrated material recovery section E is provided with a defibrated material pressing cylinder 15 and a defibrated material backup cylinder 17 to remove water therefrom. The block 25 has a bucket 26 for receiving it below. A hydraulic pump 27 for supplying pressure oil to each cylinder of the above-described defibrated material compression system is provided at a lower portion in the main body.

Next, the operation of the conventional waste paper processing apparatus having the above-described configuration will be described with reference to FIGS. Here, it is assumed that the surfactant solution is stored in advance in the defibrating tank to a set water level, and a swirling flow is generated by rotation of the stirrer. First, when processing waste paper, the cover 2 is opened, and the waste paper is placed on the insertion table 3 in an overlapping manner, and the cover 2 is closed. The control system constantly checks the load current of the stirrer driving motor 9 and determines whether there is room for receiving waste paper in the defibrating tank 6 by increasing or decreasing the load current of the stirrer driving motor 9. Is decreased, the feeder 4 is operated,
One or two waste papers on the insertion table 3 are put into the defibrating tank 6. The waste paper put into the defibration tank 6 is a surfactant solution 5
And is agitated by a swirling flow generated by a stirrer 7 in a defibrating tank 6 and a vibration generated by an ultrasonic oscillator 8 to be loosened, cut, and defibrated into small pieces or fibers. .

In the surfactant solution 5 in the defibrating tank 6, the defibrated material suspension water of the waste paper defibrated into small pieces or fibers is supplied to the defibrated material suspension water inlet at the lower portion of the defibrating tank 6. From the position 10, the screw enters the cylindrical body 12, is conveyed toward the distal end of the cylindrical body 12 by the constantly rotating screw conveyor 13, and is sent into the pressure vessel 14. In the control system, the load current of the drive motor of the screw conveyor 13 is constantly checked, and whether or not the amount of the defibrated material in the pressure vessel 14 has reached a predetermined amount is determined by increasing or decreasing the load current of the drive motor. When the current increases, the screw conveyor 13 is stopped or decelerated. In addition,
In the case of a small type in which the fluctuation range of the load current of the driving motor of the screw conveyor 13 is small and the fluctuation of the load current is difficult to detect due to the influence of noise, the amount of the defibrated material in the pressure vessel 14 reaches the predetermined amount. In some cases, whether or not the operation has been performed is determined based on the drive time of the drive motor. When the screw conveyor 13 stops or decelerates, the defibrated material pressing cylinder 15 operates to start pressing the defibrated material in the pressure vessel 14. Since the defibrated material in the pressure vessel 14 is supported on the back by the defibrated material backup cylinder 17, the defibrated material pressing cylinder 15 is
The defibrated material block 25 having the same shape as the space surrounded by each piston and the inner wall of the pressure vessel 14 is removed by the pressure between the piston and the piston constituted by the pressing plate 16 of the defibrated material backup cylinder 17. Molded into The control system determines whether the press, that is, the water removal is completed, based on the press pressure of the defibrated material pressing cylinder 15 or the elapsed time, and determines whether the press pressure is a set value (for example, 1200 kg / c).
m ² ) or when the pressing time has passed a predetermined time (for example, 20 seconds), the defibrated material pressing cylinder 1
After stopping the operation of No. 5, the defibrated material backup cylinder 17 is operated, and the pressing plate 16 is retracted to the position shown by the dotted line in FIG. Then, the defibrated material pressing cylinder 1
5 is actuated again to extend its piston further, and the dewatered defibrated material block 25 is pushed out of the pressure vessel 14.

In the piston of the defibrated material pressing cylinder 15, a discharge passage for allowing the surfactant solution removed from the defibrated material to escape backward when the defibrated material is pressed in the pressure vessel 14 is provided in a circumferential direction. Although formed at a plurality of locations, since the defibrated material slightly escapes from the discharge passage during pressing, the discharge passage portion becomes a burr in the defibrated material block 25 that has been water-removed and formed by pressing. Remains. For this reason, even if the defibrated material block 25 after pressing is extruded to the outside of the pressure vessel 14 by the defibrated material pressing cylinder 15, the defibrated material block 25 is placed in a state of being caught by the pressure vessel 14 at the burr portion. . The defibrated material extrusion cylinder 19 is provided for removing the burrs of the defibrated material block 25. Therefore, the defibrated material block 25 is
The defibrated material pushing cylinder 19 is hooked on
When the extruding plate 18 is moved along the opening surface on the other end side of the pressure vessel 14 to the position shown by the dotted line in FIG. 5, the defibrated material block 25 pushes the extruding plate 18 from the side. Under pressure, it is forcibly peeled off from the pressure vessel 14 and falls into the bucket 26. The above operation is continuously repeated to generate the block 25 in which the defibrated material is molded.

In the control system, when the water level of the surfactant solution 5 in the defibrating tank 6 detected by the level switch 11 falls below the set water level, the pump 21 is driven to remove the surfactant solution in the tank 20. The defibrating tank 6 is replenished via the pipe 22 and controlled so that the surfactant solution 5 is always held in the defibrating tank 6 in a constant amount. The overflowed surfactant solution and the defibrated suspension are returned to the tank 20 through the drain pipe 23. Further, the surfactant solution and the defibrated material suspension water leaking from the defibrated material compression system such as the pressure vessel 14 are received by the drain pan 24 and returned into the tank 20.

By the way, in order to dispose of waste paper by a wet method, in addition to the above-described apparatus, waste paper is swollen in ordinary water, and the swollen waste paper is released by the shearing force of rotating blades of a propeller or a screw conveyor. After obtaining the suspension of the defibrated material by fibering, the suspension of the defibrated material is collected in a container for supplementing the defibrated material such as a wire net and drained (Japanese Patent Laid-Open Nos. 4-126882 and 4-126882). Japanese Patent Application Laid-Open No. 4-126883) discloses a method in which suspended water of a defibrated material is drained to some extent by using a compressing force of a screw conveyor, and then collected in a defibrated material supplement container made of a wire mesh or the like, and drained again (Japanese Patent Laid-Open No. 4-2636
No. 82, Japanese Unexamined Patent Publication No. Hei 4-263683), a method in which suspended water of a defibrated material is collected in a defibrated material supplement container made of a wire mesh or the like, and then subjected to dehydration by a centrifugal dehydrator (Japanese Unexamined Patent Application, First Publication No.
No. 126688, JP-A-4-272285)
and so on.

[0015]

However, after the waste paper is defibrated in a surfactant solution in the defibrating unit B to obtain a suspension of the defibrated material, the waste paper is located below the defibrating unit B. Defibrated material compression section C
In the former case in which defibrated material suspension water is introduced into the pressure vessel 14 and water is removed by using the compressive force of the pair of opposed cylinders 15 and 17, water removal can be sufficiently performed and the water can be removed. Since the defibrated material after water is blocked, it has the advantage of good waste handling, but unavoidable leakage of defibrated material suspension water from the defibrated material compression system such as a pressure vessel, The configuration around the water must be complicated. Further, the suspension of the defibrated material leaking from the defibrated material compression system is drained by the drain pan 24 into the tank 20.
The defibrated material is mixed in the replenishing surfactant solution in the tank 20 because it is returned to the inside. For this reason, the defibration tank 6 is replenished with the defibrated substance suspension water, and it becomes difficult to adjust the concentration (viscosity) of the defibrated substance suspension water in the defibration tank 6 and also from the tank 20 to the defibration tank. Surfactant solution for replenishment in 6 (after starting operation, it will be the defibrated material suspension water)
A special pump has to be used for the pump 21 for transporting the, and the design is restricted. Furthermore,
In the defibrated material compression system, the defibrated material transport unit composed of a screw conveyor and the defibrated material block molding unit composed of each cylinder are:
While one is in operation, the other is restricted in operation, so there is a limit in increasing waste paper processing efficiency.

[0016] In addition, any of the latter, in which suspended water of the defibrated material is basically collected in a defibrated material supplement container composed of a wire mesh and the like and drained, is not sufficiently dewatered. Since it was not possible to block the waste, there was a problem in the handling of waste. Furthermore, the defibrated material supplement container made of a wire mesh or the like requires a cleaning treatment upon reuse.

The present invention has been made in order to solve the above-mentioned problems, and does not impair the conventional advantage that the defibrated material after water removal is blocked and the waste is easy to handle. It is an object of the present invention to provide a waste paper processing apparatus having a simple structure, preventing contamination of a replenishing surfactant solution, and improving waste paper processing efficiency.

[0018]

According to a first aspect of the present invention, there is provided a waste paper processing apparatus for storing a waste paper feeder for feeding waste paper and a surfactant solution supplied from a surfactant solution supply means. A fibrillation tank for infiltrating and softening the surfactant solution into the waste paper supplied from the waste paper feeder, and a fibrillation tank, which is provided in the fibrillation tank and stirs the surfactant solution in the fibrillation tank to soften the waste. A stirrer for defibrating the paper into fibers and a defibrated waste paper that is provided in the defibration tank and is defibrated into fibers in the surfactant solution in the defibration tank above the water surface. A plurality of defibrated material conveying means to be conveyed, and a tubular body arranged at a position higher than the water surface in the defibrating tank and for press-forming the defibrated material conveyed by each defibrated material conveying means into a block shape. A plurality of defibrated material block forming means provided with A plurality of defibrated material extruding means each having an extrudable block that can advance and retreat along the side opening surface, and extruding each defibrated material block press-formed and dewatered by each defibrated material block forming means; A chute that is provided to penetrate into the tank and guides each defibrated material block that is extruded and dropped by each defibrated material extrusion means to the defibrated material recovery means, and a defibrated material block that slides down the chute. And a defibrated material collecting means received below.

Further, in the waste paper processing apparatus according to the first invention, each defibrated material transport means is connected to an independent driving motor.

In the waste paper processing apparatus according to the first aspect of the present invention, the load current increases or the number of rotations decreases in view of the load current, the number of rotations, and the elapsed time after the start of driving of each drive motor. Alternatively, stop the defibrated material conveying means for which a predetermined time has elapsed since the start of driving, and if the load current of each drive motor decreases or the number of rotations increases, Stop one of the object transport means,
In addition, a control device for stopping all the defibrated material conveying means after a predetermined time is provided.

In the waste paper processing apparatus according to the second aspect of the present invention, the waste paper feeder for feeding waste paper and the surfactant solution supplied from the surfactant solution supply means are stored.
A defibration tank that penetrates and softens the surfactant solution into the waste paper fed from the waste paper feeder, and is provided in the defibration tank and agitates the surfactant solution in the defibration tank to soften the waste paper. A stirrer that disintegrates the waste paper into fibers, and a waste paper disintegrated into fibers in the surfactant solution in the disintegration tank that is juxtaposed in the disintegration tank. A plurality of defibrated material conveying means for conveying the defibrated material, which are arranged side by side at a higher position than the water surface in the defibrating tank, and press-formed the defibrated material conveyed by each defibrated material conveying means into a block shape. A plurality of defibrated material block forming means having a cylindrical body, and a length which can be simultaneously closed over one end side open surface of each cylindrical body of each defibrated material block forming means. Each of the defibrated material block forming means has an extruding block capable of moving back and forth along these opening surfaces. And both extruded single defibration extrusion means each defibrated material blocks further press molded josui,
A defibrated material collecting means for receiving the defibrated material block extruded and dropped by the defibrated material pushing means below.

In the waste paper processing apparatus according to the second aspect of the present invention, the defibrated material transporting means are connected to each other via a power transmission means, and one of them is connected to a single driving motor. They are directly connected.

Further, the waste paper processing apparatus according to the second aspect of the invention has a clutch provided in a power transmission system of the power transmission means.

In the waste paper processing apparatus according to the second aspect of the present invention, the load current increases or the number of rotations decreases, depending on the load current, the number of rotations, and the elapsed time after the start of driving of the driving motor. Alternatively, when a predetermined time has elapsed after the start of driving, the defibrated material transport means is stopped, and when the load current of the drive motor decreases or the number of rotations increases, another defibration by the clutch is performed. A control device is provided for interrupting the power transmission to the object conveying means and stopping all the defibrated object conveying means after a predetermined time.

[0025]

According to the first aspect of the present invention, the waste paper fed into the defibrating tank from the waste paper feeder is softened by the permeation of the surfactant solution in the defibrating tank and further generated by the rotation of the stirrer. The mixture is agitated by the rotating swirling flow, loosened, shredded, and defibrated into fibers. The defibrated material of the waste paper that has been defibrated into a fiber shape is separated by each defibrated material transporting means provided in the defibrating tank, with each defibrated material block arranged at a position higher than the water surface in the defibrating tank. The defibrated material is conveyed to forming means and press-formed into defibrated material blocks of a predetermined size by each defibrated material block forming means. Each defibrated material block which has been press-molded and dewatered by each defibrated material block forming means is extruded into a chute by each extruded block of each defibrated material pushing means, slides down, and the lower defibrated material is collected. Collected by means. Thus, while providing a plurality of defibrated material conveying means and defibrated material block forming means, each of these defibrated material conveying means and each defibrated material block forming means is provided in the defibrating tank and the defibrating tank. By disposing it at a higher position than the water surface, waste paper processing efficiency can be improved, and all the water leaking from each defibrated material transport system and each defibrated material compression system (defibrated material suspension water) is released. It can be dropped back into the fiber tank and returned. In other words, the defibrated material after water removal is blocked, and the structure around the water is simplified without impairing the conventional advantage that the handling property of the waste is good, and the contamination of the replenishing surfactant solution is prevented. be able to.

Further, according to the configuration in which each defibrated material conveying means is connected to an independent driving motor, each defibrated material conveying means can be controlled independently, and the defibrated material can be controlled by each defibrated material. It can be transported randomly to the block forming means.

Further, by looking at the load current, the number of revolutions, and the elapsed time after the start of driving of each drive motor, the load current increases, or the number of revolutions decreases, or the elapsed time after the start of the drive elapses a predetermined time. When the load current of each drive motor decreases or the number of rotations increases, one of the defibrated material transport means is stopped, and By providing a control device for stopping all the defibrated material transport means after a time, the defibrated material can be randomly transported to each defibrated material block forming means, and the defibrated material transport efficiency can be improved. And the running cost can be kept low.
For example, in the case of two defibrated material transport means, for example, the concentration of the defibrated material suspension water in the defibrating tank is reduced due to waste paper, and the load current of each drive motor is reduced. When the number of rotations increases, only one of the defibrated material transport means is rotated, the other is stopped, and after a predetermined time, the rotating defibrated material transport means is also stopped. Thereby, it is possible to suppress power consumption more than necessary.

Further, in the second aspect of the present invention, the waste paper fed into the defibrating tank from the waste paper feeder is softened by the permeation of the surfactant solution in the defibrating tank, and further the rotation of the stirrer is performed. Is stirred and loosened by the swirling flow generated by
It is shredded and defibrated into a fiber. The defibrated material of the waste paper that has been defibrated into a fiber shape is separated by defibration devices arranged side by side above the water surface in the defibration tank by means of each defibrated material transfer means arranged in the defibration tank. Each of the defibrated material block forming means press-molds the defibrated material block into a defibrated material block having a predetermined size. Each defibrated material block which has been press-formed and dewatered by each defibrated material block forming means is extruded and dropped together by a single extruded material extruding means set to a long extruding block, and falls downward. Collected by the defibrated material collection means. In this way, for a plurality of defibrated material conveying means and defibrated material block forming means provided in the defibrating tank, the defibrated material extruding means was shared as a single unit,
In addition to the improvement in waste paper processing efficiency, the reduction in the number of defibrated material extruding means can reduce the cost, create an empty space, and facilitate the arrangement of other members.

Further, according to the configuration in which the defibrated material conveying means are connected to each other via the power transmission means and one of them is directly connected to a single driving motor, The cost can be further reduced, and an empty space is generated, and the arrangement of other members is further facilitated.

Further, by providing a clutch in the power transmission system of the power transmission means, it is possible to adjust the number of the defibrated material transport means driven by a single driving motor.

Further, the load current, rotation speed,
When the load current increases, or the number of rotations decreases, or when the elapsed time after the start of the drive has elapsed for a predetermined time, the defibrated material transporting means is stopped, and the load of the drive motor is increased. When the current decreases or the number of revolutions increases, the control device interrupts the transmission of power to other defibrated material transport means by the clutch, and stops all defibrated material transport means after a predetermined time. Is provided, the efficiency of transporting the defibrated material can be improved, and the running cost can be reduced. For example, in the case of two defibrated material transport means, the concentration of the defibrated material suspension water in the defibrating tank is reduced due to waste paper or the like,
When the load current of each drive motor decreases or the number of rotations increases, the clutch cuts off the power transmission from this clutch to the preceding defibrated material transfer means and is directly connected to a single drive motor. Only the defibrated material conveying means on the set side is rotated, and after a predetermined time, the rotating defibrated material conveying means is also stopped. Thereby, it is possible to suppress power consumption more than necessary.

[0032]

【Example】

Embodiment 1 FIG. Hereinafter, the present invention will be described with reference to the illustrated embodiments.
FIG. 1 is a right side sectional view showing the entire configuration of a waste paper processing apparatus according to a first embodiment of the present invention, and FIG. 2 is a front sectional view thereof. Is attached. The waste paper processing apparatus 30 of the present embodiment has a waste paper supply unit A, a defibrated material compression unit C,
The defibration unit B, the surfactant solution supply unit D, and the defibrated material recovery unit E are arranged and configured. That is, in the waste paper processing apparatus 30 of the present embodiment, the defibrated material compression section C is disposed above the defibration section B. In the following description, the defibrated material compression section C will be described after the defibration section B for easy understanding.

First, the waste paper supply section A is provided with a waste paper insertion table 3 on which a large number of waste papers 31 are stacked and placed, and a downstream stage from the waste paper insertion table 3 based on a detection result of a density sensor described later. And a waste paper feeder 4 for feeding the waste paper 31 to the defibrating unit B one by two.

The defibrating unit B has the following configuration.
Here, the drive system of the stirrer will be described with reference to FIG. 3 used in a second embodiment described later. That is, a defibrating tank 6 in which the surfactant solution 5 is stored, a stirrer 7 installed at the bottom of the defibrating tank 6 and stirring the surfactant solution 5, and a defibrillator 7 as shown in FIG. A pulley 33 attached to the rotating shaft 7a penetrating the bottom of the fiber tank, a belt 34 for transmitting a driving force to the pulley 33, and a stirrer driving motor 9 connected to the pulley 35 and driving the stirrer 7; A concentration sensor 36 for detecting the concentration (viscosity) of a suspension of defibrated material of waste paper defibrated into small pieces or fibers in the surfactant solution 5 in the defibration tank 6; And a float switch 37 for detecting the water level of the surfactant solution 5 (the suspension of the defibrated material after the start of operation).

In the defibrating unit B, the density sensor 36
Is composed of a switch or the like having an operating portion 36a formed of a chain or a flexible bar, and the operating portion 36a is provided with the surfactant solution 5 in the defibrating tank 6 (after starting the operation, suspension of defibrated material).
It is installed in a state of being suspended or inserted by its own weight. Then, when the load (fluid friction) received from the swirling flow generated by the stirrer 7 in the defibrating tank 6 increases and exceeds a reference value, it turns on. That is, when the fluid friction is small (when the concentration of the defibrated material suspension water is low), the waste paper feeder 4 of the waste paper supply unit A sends the waste paper 3
1 is permitted, and when the fluid friction is large (when the concentration of the defibrated material suspension water is high), the feeding of the waste paper 31 to the waste paper feeder 4 of the waste paper supply unit A is stopped.

The defibrated material compression section C has the following configuration. That is, a chute that guides the defibrated material block generated by the defibrated material compression unit C to the subsequent defibrated material collection unit E is provided at the center of the defibrating tank 6 viewed from the side surface (FIG. 1).
That is, the first of the defibrated material block sorting means 64 described later
Of the defibrating tank 6 is provided so as to penetrate the bottom of the defibrating tank 6 so that the upper end opening thereof is higher than the water surface in the defibrating tank 6. On both sides of the first rectangular tubular portion 64a, two defibrated material compression systems 91A, 91
B is arranged. Each defibrated material compression system 91A, 91B
Have the same configuration, each of the defibrated material pushing cylinders 50, 50 is installed facing the upper end opening of the first rectangular tubular portion 64a, and the respective screw conveyors 39, 39 But pulleys 40 and 4
0, belts 41, 41, and pulleys 42, 42, respectively, are connected to conveyor driving motors 43, 43, respectively, so that they can be driven independently. This will be described in more detail. In addition, each defibrated material compression system 91A, 91
B have the same configuration, so only the defibrated material compression system 91A will be described here.
Description of 1B is omitted. Defibrated material compression system 91A
Has the following configuration. That is, a number of small holes 38a for allowing moisture to escape are formed in the peripheral wall, and
The defibrated material suspension water inlet 3
8b is formed with a notch, and a cylindrical body 38 whose upper end protrudes above the water surface, and is rotatably arranged in the cylindrical body 38,
A screw conveyor 39 in which the lower end of the shaft 39a penetrates the bottom of the defibrating tank; and a shaft 39 of the screw conveyor 39.
a, a pulley 40 attached to the bottom end of the defibrating tank, a belt 41 for transmitting a driving force to the pulley 40, and a conveyor driving motor 43 connected via the pulley 42
And the upper part of the defibrating unit B, that is, a higher level than the set water level in the defibrating tank 6, and the middle part is the cylindrical body 38.
A large number of small holes 4 communicate with the upper end of the opening 4 and open at one end and allow moisture to escape to the peripheral wall excluding the upper portion on the opening end side.
A defibrated material block forming cylinder 44 on which 4a is formed; and a defibrated material block forming cylinder 44 disposed on the center axis of the defibrated material block forming cylinder 44;
The other end of the defibrated material block forming cylinder 44 is closed, and the defibrated material pressing cylinder 46 into which the piston rod 45 is inserted from the other end of the defibrated material pressing cylinder 46, and the piston rod 45 of the defibrated material pressing cylinder 46. It is attached to the front end, and the rear end side 47a is set by a piston ring (not shown) to have a diameter dimension capable of maintaining airtightness with the inner wall of the defibrated material block forming cylinder 44, and the front end side 47b is formed on the defibrated material block. A stepped cylindrical piston 47 having a diameter set to form a gap 48 between the inner wall of the cylinder body 44 and a large number of radial pistons attached to the distal end of the piston 47 and having a V-shaped cross section at the distal end surface. The first groove 49a is formed,
The peripheral surface has a pressing plate 49 provided with a large number of second grooves 49b each having a V-shaped cross section for connecting the first radial grooves 49a and the gaps 48 to each other. Furthermore, the pressure vessel 1 is located outside the opening on one end side of the defibrated material block forming cylinder 44.
4, a defibrated material extrusion cylinder 50 disposed in a direction orthogonal to the central axis in a horizontal plane, and a defibrated material block forming cylinder attached to the tip of a piston rod 51 of the defibrated material extrusion cylinder 50 An extruding block 52 having a guide groove 52a extending in the axial direction of the piston rod formed on a surface opposite to a surface facing the one end opening surface of the one end 44, and one end of a defibrated material block forming cylinder 44 in the extruding block 52. A plurality of V-shaped parallel grooves 53a extending in the horizontal direction are provided on a surface opposite to the opening surface and are provided on a surface facing the one-side opening surface of the defibrated material block forming cylinder 44. A pressing plate 53 for backing up the fabric and the back side of the extrusion block 52, that is, the guide groove 5 of the extrusion block 52
A backup member 54 is disposed on the surface side on which the 2a is formed, and has a guide 54a that guides the extrusion block 52 by being fitted into the guide groove 52a on the surface facing the extrusion block 52. Furthermore, the defibrated material press cylinder 46, the defibrated material block forming cylinder 44, the holding plate 5
In order to integrate the extrusion block 52 provided with the third member 3 and the backup member 54 provided with the guide 54a, one end is screwed to the periphery of the backup member 54 and the other end is screwed to the casing of the cylinder 46 for pressing the defibrated material. A plurality of tie rods 55 assembled in a cage shape and a large number of small holes 56a are formed, and the defibrated material block forming cylinder 44 is formed.
The first rectangular portion of the defibrated material block sorting means 64 receives the defibrated material block extruded from the defibrated material block forming cylinder 44 after pressing and is horizontally arranged at the edge of the lower edge of the one end side opening surface. A cylinder 56 for guiding the defibrated material to the cylinder portion 64a, the moisture discharged from the parallel groove 53a of the holding plate 53 for backing the defibrated material during pressing, and the defibrated material block received by the pedestal 56. A wall forming a passage 57 for returning the defibrated material extruded together with the defibrated material block when extruded to the first rectangular cylindrical portion 64 a of the defibrated material block distributing means 64 by the use of 50. And a body 58.

In the defibrated material compression section C, a large number of small holes 38a of each cylindrical body 38 and a large number of small holes 44a of each defibrated material block forming cylindrical body 44 are each formed in each cylindrical body. It is formed in a tapered shape that expands in a divergent shape from the surface to the outer surface, and is separated from the defibrated material in the defibrated material suspension water conveyed by each screw conveyor 39 in each cylindrical body 38. Water (surfactant solution) or water (surfactant solution) oozing out of the defibrated material compressed by each defibrated material pressing cylinder 46 in each defibrated material block forming cylinder 44; It can be efficiently discharged into the defibrating tank 6. That is, even if the defibrated material is mixed in the moisture, the small holes 38a, 44a are formed by the mixed defibrated material by making each of the small holes 38a, 44a tapered as described above. Can be prevented from being clogged.

Therefore, in the defibrated material compression section C, when each of the screw conveyors 39 is rotated by driving each of the conveyor driving motors 43, the defibrated material suspended water of the waste paper in the defibration tank 6 is subjected to each defibrated material. The water (surfactant solution) enters into the defibrating tank 6 from each of the small holes 38a of the cylindrical body 38 and is conveyed toward the upper end of the cylindrical body while the water (the surfactant solution) is discharged into the defibration tank 6 through the small hole 38a. Then, the defibrated material is fed into the block forming cylinder 44. Further, in a state where the one end side opening surface of each defibrated material block forming cylinder 44 is closed by each pressing plate 53, each defibrated material pressing cylinder 46 is operated, and each piston rod 45 is extended. Tubular body 4 for defibrated material block molding
In the defibrated material block forming cylinder 44, the defibrated material in the defibrated material 4 is pressed into the pressing plate 49 on the defibrated material pressing cylinder 46 side and the pressing plate 53 on the backup member 54 side.
Then, water is removed by the clamping pressure, and the defibrated material block has the same shape as the space surrounded by the pressing plate 49, the pressing plate 53, and the inner wall of the defibrated material block forming cylinder 44. In the process of forming the defibrated material block, the moisture (surfactant solution) removed from the defibrated material is partially part of each of the first grooves 49a on the distal end face of each pressing plate 49.
After entering the respective gaps 48 through the respective second grooves 49b on the respective peripheral surfaces from the respective small holes 44a of the respective defibrated material block forming cylindrical bodies 44, the defibrated tub 6 is moved downward. Drip. In addition, a part of the water (surfactant solution) removed from the defibrated material flows on both sides along each parallel groove 53a of each holding plate 53, and each parallel groove 53
The water (surfactant solution) that has flowed to one side (anti-rectangular cylinder side) of a is directly dropped into the defibrating tank 6 and flows to the other side (rectangular cylinder side) of each parallel groove 53a. The water (the surfactant solution) is returned from the passage 57 into the defibrating tank 6. Further, water (surfactant solution) leaking onto the receiving trays 56 along the wall surfaces of the holding plates 53 is removed from the respective receiving trays 56.
From the small holes 56a. Further, when each defibrated material pushing cylinder 50 is operated to retract each piston rod 51, each pushing block 52
The pressing plate 53 integral therewith is guided by the respective guides 54a on the respective rear sides, and along the opening surfaces on one end side of the respective defibrated material block forming cylinders 44, the respective receiving bases 56 are provided.
The upper side is slid rearward (in the direction of the anti-rectangular cylindrical portion) to release the opening face on one end side of each defibrated material block forming cylindrical body 44. Further, from the state in which each piston rod 51 is in a retracted state, that is, each defibrated material block water-removed and formed by pressing is removed from the defibrated material block forming cylinder 44 by each defibrated material pressing cylinder 46. When the defibrated material extruding cylinders 50 are operated and the respective piston rods 51 are extended from the state of being extruded onto the receiving table 56, the respective extruding blocks 52 and the pressing plates 53 are guided by the respective guides 54a. Then, each defibrated material block is slid forward (in the direction of the rectangular cylinder) on each receiving table 56 along one end side opening surface of the defibrated material block forming cylinder 44, and each defibrated material block is divided into defibrated material block distributing means. 64 first rectangular cylindrical portions 64a
At the same time, and simultaneously closes one end side opening surfaces of the respective defibrated material block forming cylinders 44. In the process of extruding these defibrated material blocks into the upper end opening of the first rectangular tube portion 64a of the defibrated material block sorting means 64, water droplets or deflocculation of the surfactant solution adhering to the surface of each receiving tray 56 are obtained. The fines are also extruded together with the defibrated blocks by the respective extruding blocks 52 and the holding plates 53. However, these water droplets and debris must pass through the upper ends of the respective passages 57, ie, the respective wall bodies 58. Therefore, the fibers fall into the respective passages 57 and are returned to the defibrating tank 6.

In the defibrated material compression section C, a case where cylinders are used as drive sources of the piston rods of the defibrated material compression systems 91A and 91B has been described as an example, but the present invention is not limited to this. Instead, for example, the piston rod may be driven by a motor and a gear mechanism.

The surfactant solution supply section D has the following configuration. That is, the replenishing surfactant solution is transported from the tank 20 based on the detection result of the float switch 37 in the refining tank 6 to the refining tank 6 based on the tank 20 storing the replenishing surfactant solution. And a drain pipe (not shown) for returning the overflowed surfactant solution or defibrated material suspension water into the tank 20.

Therefore, in the surfactant solution supply section D, when the float switch 37 detects that the water level in the defibrating tank 6 has dropped, the pump 21 is operated, and the tank 20, the pump 21, the pipe 60, The replenishing surfactant solution is supplied into the defibrating tank 6 from the surfactant solution supply system composed of. The overflowed surfactant solution or defibrated suspension is returned to the tank 20 by a drain pipe. Cannot occur unless a failure of the float switch 37 occurs, so that the replenishing surfactant solution in the tank 20 is not contaminated in the normal state.

The defibrated material recovery section E has the following configuration. That is, the bucket 26 that receives the chute, that is, the defibrated material block that slides down in the first rectangular tube portion 64a, by the defibrated material extrusion cylinders 50 of the defibrated material compression systems 91A and 91B, and the first rectangle. Cylinder 6
4a and a defibrated material comprising a second rectangular cylindrical portion 64b extending from one lower side of the first rectangular cylindrical portion 64a toward an opening 65 provided in a side wall of the waste paper processing apparatus main body and inclined downward. A block 66 is provided on one side of the lower part of the first rectangular cylindrical portion 64a of the defibrated material block sorting means 64.
And a rectangular closing plate 67 that swings in a horizontal plane about a hinge 66 to open and close the lower end opening of the first rectangular cylindrical portion 64a, and a not-shown side of the waste paper processing apparatus main body side. A fullness detection sensor 68, which is removably inserted and installed in the upper part of the bucket 26 via a bracket and detects the fullness of the bucket 26 by an optical system, comprising a light projecting part 68a and a light receiving part 68b, and a side wall of the waste paper processing apparatus. And the defibrated material block sorting means 64
And a spare bucket 69 for receiving the defibrated material block which is distributed by the second rectangular tube portion 64b and discharged to the outside of the waste paper processing apparatus.

In the defibrated material recovery section E, the defibrated material block extruded by the defibrated material extrusion cylinder 50 passes through the first rectangular cylindrical portion 64 a of the defibrated material block distributing means 64. , In the lower bucket 26. Therefore, when the inside of the bucket 26 is full, the defibrated material blocks that fall later are deposited in the first rectangular tubular portion 64a. When this accumulation proceeds to the vicinity of the entrance to the second rectangular tube portion 64b serving as a bypass passage, the defibrated material block that falls thereafter is forcibly introduced into the entrance of the second rectangular tube portion 64b. Then, it slides down in the bypass, falls into the spare bucket 69 from the opening 65, and is collected. Therefore, even if the fullness detection sensor 68 detects that the bucket 26 is full, it is not necessary to stop the apparatus immediately. In this embodiment, when the fullness detection sensor 68 detects that the bucket 26 is full, the control system notifies the user of the fullness of the bucket 26 by an alarm, and then the full state continues for a predetermined time (for example, two hours). Then, an operation is performed to stop the device.

Further, a unit of the control device 70A is disposed behind the bottom of the waste paper processing apparatus main body. The control device 70A controls the pump 21 of the surfactant solution supply unit D based on the detection result of the float switch 37, and controls the waste paper feeder 4 of the waste paper supply unit A based on the detection result of the concentration sensor 36. , The rotation mode of the stirrer 7 of the defibrating unit B
Switching control is performed at regular time intervals (for example, 15 seconds) or by checking the load current of the stirrer driving motor 9 or by checking the rotation speed of the stirrer driving motor 9, and controlling each of the conveyor driving motors of the defibrated material compression unit C. The screw conveyor 39 is independently controlled by looking at the load current or the number of rotations of 43 or the elapsed time after the start of driving, and the operation timings of the two sets of cylinders 46 and 50 of the defibrated material compression section C are independently controlled, so that they are full. It has a function of outputting an alarm to an alarm based on the detection result of the detection sensor 68. These operations are performed according to a program. Here, the arrangement position of the unit of the control device 70A is described as the bottom rear in the waste paper processing apparatus main body, but the control apparatus does not need to particularly limit the arrangement position, and even in the upper part in the waste paper processing apparatus main body, Needless to say, it can be installed at any other location if space allows.

Next, the operation of the waste paper processing apparatus of the present embodiment having the above-described configuration will be described with reference to FIGS. Here, the surfactant solution is stored in advance in the defibrating tank to a set water level, and a swirling flow is generated by the rotation of the stirrer, and at least one end side opening surface of each defibrated material block forming cylinder. Are closed by the holding plate. First, in the waste paper processing, the waste paper 31 is stacked and placed on the waste paper insertion table 3. In the control system, the density sensor 3
6, the surfactant solution 5 in the defibration tank 6
When it is determined that the concentration of the suspension of the defibrated material after the operation is started is low, the sending of the waste paper 31 to the waste paper feeder 4 is permitted. As a result, the feeder 4 is operated, and one or two waste papers 31 on the waste paper insertion table 3 are put into the defibrating tank 6 one by one. The waste paper 31 put into the defibrating tank 6 is softened by the permeation of the surfactant solution 5 and further stirred by the swirling flow generated by the stirrer 7 in the defibrating tank 6 to be loosened and shredded. It is broken up into small pieces or fibers. The waste paper which has been loosened and cut into small pieces has a complicated shape generated at a portion where the forward swirling flow generated by the stirrer 7 and the forward swirling flow and the reverse swirling flow at the time of reverse rotation collide. Due to the flow, the fibers are loosened by receiving shearing force from multiple directions, and are efficiently defibrated into fibers.

In the control system, the rotation mode of the stirrer 7 is switched every 15 seconds. That is, the rotation direction of the stirrer 7 is set to 1
Invert every 5 seconds. Further, the control system switches the rotation mode of the stirrer 7 depending on the state of the load current of the stirrer driving motor 9 regardless of the time. For example, when the concentration of the suspension of the defibrated material in the defibration tank 6 is reduced due to the breakage of the waste paper 31 on the waste paper insertion table 3 and the load current is reduced, the agitator 7 is rotated at a low speed for a predetermined time ( Stop after 5 minutes, for example). Then, even in the case of the low-speed rotation, the rotation direction is switched every 15 seconds. The change in the load current appears as a change in the rotation speed of the motor 9 for driving the stirrer. Generally, a current change involves noise, so that noise removal processing is required to increase detection accuracy. Therefore, in order to facilitate the control, a change in the rotation speed of the stirrer driving motor 9 may be detected. That is, when the load current decreases, the rotation speed increases, and when the load current increases, the rotation speed decreases. The change control of the rotation mode described above may be performed by catching the change in the rotation speed.

The suspension of the defibrated material of the waste paper 31 defibrated in the form of fibers in the surfactant solution 5 in the defibrating tank 6 holds down the opening surface at one end side of the defibrated material block forming cylinder. The suction force of the screw conveyor 39 rotating by the drive of the conveyor drive motor 43 on the side closed by the plate causes the defibrated material suspension water inlet 38b on the side on which the screw conveyor 39 is rotating to enter the cylindrical body 38. And the water (surfactant solution) is conveyed toward the upper end of the cylindrical body while discharging water (surfactant solution) from the small holes 38a of the cylindrical body 38 into the defibrating tank 6, and is sent into the defibrated material block forming cylindrical body 44. . The control system determines whether or not the amount of the defibrated material in the defibrated material block forming cylinder 44 has reached a predetermined amount based on the load current or the rotation speed of the conveyor driving motor 43 or the elapsed time after the start of driving. Then, when the load current increases, the number of rotations decreases, or when a predetermined time (for example, 20 seconds) elapses after the start of driving, the screw conveyor 39 is stopped. Furthermore, in the control system,
For example, the concentration of the suspension of the defibrated material in the defibrating tank 6 is reduced due to the breakage of the waste paper 31 on the waste paper insertion table 3 and the load current of each of the conveyor driving motors 43 is reduced or the rotation is reduced. As the number increases, only one of the screw conveyors 39 is rotated and the other is stopped. When the light load state continues for a predetermined time (for example, 5 minutes), the screw conveyor 39 that is rotating is also stopped.
As a result, it is possible to suppress unnecessary power consumption.

When the amount of the defibrated material in the defibrated material block forming cylinder 44 reaches a predetermined amount and the screw conveyor 39 stops, the defibrated material pressing cylinder 46 is operated, and the defibrated material block forming cylinder 44 is operated. Pressing of the defibrated material in the body 44 is started.
Since the defibrated material in the defibrated material block forming cylinder 44 is supported on the back surface by the pressing plate 53 on the backup member 54 side, the defibrated material press is performed in the defibrated material forming cylinder 44. Water is removed by the pressure between the pressing plate 49 on the side of the cylinder 46 and the pressing plate 53 on the side of the backup member 54, and is surrounded by the pressing plate 49, the pressing plate 53, and the inner wall of the defibrated material block forming cylinder 44. Into a defibrated material block of the same shape as the open space. In the process of forming the defibrated material block, the water (surfactant solution) removed from the defibrated material mainly forms the small holes 44 of the defibrated material block forming cylinder 44.
a and is returned into the defibration tank 6 below. In the control system, it is determined whether or not the press, that is, water removal is completed, based on the press pressure of the defibrated material press cylinder 46 or the elapsed time, and the press pressure is set to a set value (for example, 1200 kg / c).
m ² ), or when the press time elapses a predetermined time (for example, 20 seconds), once the defibrated material pressing cylinder 4
6 is stopped, and the defibrated material extruding cylinder 50 is stopped.
To operate the holding plate 53, that is, the extrusion block 52.
Is retracted to a position indicated by, for example, a defibrated material compression system 91A in FIG. 1 to release an opening surface on one end side of the defibrated material block forming cylinder 44. Next, the defibrated material press cylinder 46 is operated again to further advance the pressing plate 49, and the defibrated material block is extruded onto the receiving table 56 outside the defibrated material block forming cylinder 44.

Pressing plate 4 on defibrated material pressing cylinder 46 side
Reference numeral 9 denotes a water hole (surfactant solution) removed from the defibrated material when the defibrated material is pressed in the defibrated material block-forming cylinder 44, and the small holes of the defibrated material block-forming cylinder 44. A plurality of second grooves 49b for guiding and discharging the defibrated material are formed at a plurality of positions on the peripheral surface.
Since water is removed to some extent in the process of being conveyed by the screw conveyor 39 into the defibrated material 4, the defibrated material is less mixed into the water removed from the defibrated material in the defibrated material block forming cylinder 44, Therefore, the second groove 49b of the pressing plate 49 is provided in the defibrated material block which has been water-removed and formed by pressing.
Is not transferred, and burrs do not occur. For this reason, the defibrated material block that has been subjected to the water removal and molding is smoothly extruded from the defibrated material block forming cylinder 44 by the defibrated material pressing cylinder 46 and transferred onto the receiving table 56.

When the defibrated material block is extruded onto the receiving table 56, the defibrated material extruding cylinder 50 operates to advance the extruded block 52 and the pressing plate 53 integral therewith.
The defibrated material block on the receiving table 56 is extruded into the first rectangular cylindrical portion 64a of the defibrated material block sorting means 64, and at the same time, the opening surface on one end side of the defibrated material block forming cylinder 44 is closed.
In the process of extruding the defibrated material block into the first rectangular tubular portion 64a of the defibrated material block sorting means 64, the pedestal 5
Water droplets of the surfactant solution and debris of the defibrated material adhering to the surface of the fiber 6 are extruded together with the defibrated material block, fall into the passage 57 and return to the defibrating tank 6.

The suspension surface of the defibrated material in the defibration tank 6 has a constantly waving water surface due to the swirling flow generated by the stirrer 7, and it is difficult to accurately detect the water level during operation. For this reason,
In the control system, when the ON state of the float switch 37 continues for a predetermined time, it is determined that the water level has dropped, and the pump 21
Drive control.

The pedestal 5 is moved by the defibrated material pushing cylinder 50.
The defibrated material block that is extruded from above and falls through the first rectangular tubular portion 64a of the defibrated material block sorting means 64 serving as a falling path, and is collected in the lower bucket 26. . The above operation is performed by each defibrated material compression system 91A, 9
1B is repeated independently and continuously, and when the inside of the bucket 26 is full, the full detection sensor 68 detects that the bucket 26 is full. In the control system, when the fullness detection sensor 68 detects that the bucket 26 is full, an alarm is output as an alarm, and when the full state continues for a predetermined time (for example, two hours),
Stop the device. While the full state continues, the defibrated material block that falls later is the first rectangular cylindrical portion 64.
a, and this deposit is formed in the second
When the defibrated material block that has proceeded to the vicinity of the entrance to the rectangular tubular portion 64b is forcibly introduced into the entrance of the second rectangular tubular portion 64b and slides down in the bypass, the defibrated material block falls from the opening 65. It falls into the spare bucket 69 and is collected.

The disposal of the defibrated material block in the full bucket 26 can be performed without stopping the apparatus. That is, the defibrated material blocks deposited in the first rectangular cylindrical portion 64a of the defibrated material block sorting means 64 are removed, and the defibrated material blocks are stored in the bucket 26 or the spare bucket 6.
9, the closing plate 67 attached to the lower part of the first rectangular cylindrical portion 64a via the hinge 66 is attached to the hinge 6
6 in a horizontal plane about the first rectangular cylindrical portion 64a.
Close the lower end opening of the. Next, after the fullness detection sensor 68 is detached from the inside of the bucket 26, the bucket 26 is taken out from the inside of the apparatus, and the defibrated material block in the bucket 26 is discarded. To return the bucket 26 to the inside of the apparatus, the procedure is reversed.

As described above, the waste paper processing apparatus 30 of this embodiment
Is the first rectangular cylindrical portion 6 of the defibrated material block sorting means 64.
4a is provided so as to penetrate into the defibration tank 6, and the defibration tank 6
Since the two defibrated material compression systems 91A and 91B that can be independently driven are disposed on both sides of the first rectangular cylindrical portion 64a, waste paper processing efficiency can be improved. Also, by looking at the fluctuation of the load current of each conveyor driving motor 43 or the fluctuation of the rotation speed of each conveyor driving motor 43, at light load, only one of the screw conveyors 39 is rotated and the other is stopped. When the light load state continues for a predetermined time, the rotating screw conveyor 39 is also stopped, so that the running cost can be reduced.

Embodiment 2 FIG. FIG. 3 is a right side sectional view showing the entire configuration of the waste paper processing apparatus according to the second embodiment of the present invention.
Is a front cross-sectional view, in which parts corresponding to the first embodiment are denoted by the same reference numerals. The waste paper processing apparatus 100 according to the second embodiment has a single configuration in which the defibrated material extrusion cylinder and the conveyor driving motor used in the two defibrated material compression systems 91A and 91B in the defibrating tank 6 are shared. Point,
The second embodiment differs from the first embodiment in that the defibrated material block sorting means 64 is disposed outside the defibration tank 6 and that the full detection sensor is a contact type. This will be described in more detail with reference to FIGS. 3 and 4. A first defibrated material compression system 91 </ b> A is arranged on one side of the defibrating tank 6 as viewed from a side surface (FIG. 3). A second defibrated material compression system 91B is juxtaposed in the vicinity. Each of the defibrated material compression systems 91A and 91B has basically the same configuration as that of the first embodiment described above, but the defibrated material pushing cylinder 50A and the conveyor driving motor 43 are shared. , Each of which is composed of only one. That is, the defibrated material extrusion cylinder 50A
The stroke of the piston rod 51A is set to be longer than that of the first embodiment, and the extrusion block 52A is connected to each of the defibrated material block forming cylinders 44.
A and 44B are set to a length that can simultaneously close the one end side opening surfaces. In other words, the surface of the extruded block 52A facing the respective defibrated material block forming cylinders 44A, 44B has a length capable of simultaneously closing one end side opening surfaces of the respective defibrated material block forming cylinders 44A, 44B. The single holding plate 53A set in this manner is attached. Further, the upper portion of the shaft portion 39a penetrating the bottom of the defibrating tank of the screw conveyor 39A of the one defibrated material compression system 91A is connected to the pulley 42 on the side of the conveyor driving motor 43 and the first belt 41A. The first pulley 40A is mounted, and the second pulley 101 is mounted via a clutch 150 below the shaft 39a. Second pulley 1
Reference numeral 01 denotes a second belt 41B connected to a pulley 40B attached to the lower end of a shaft portion 39a that penetrates the bottom of the defibrating tank of the screw conveyor 39B of the other defibrated material compression system 91B.

Therefore, when the conveyor driving motor 43 is driven, the power is transmitted from the pulley 42 to the first belt 41.
A, one defibrated material compression system 9 via the first pulley 40A
1A of the screw conveyor 39A, the clutch 150, the second pulley 101, the second belt 41
B, and also transmitted to the screw conveyor 39B of the other defibrated material compression system 91B via the pulley 40B.

In this embodiment, the defibrated material block sorting means 64 is arranged outside the defibration tank 6. That is,
The defibrated material block distributing means 64 is set so that the cylinder axis is arranged in the falling path of the defibrated material block which is extruded to the outside of the defibrating tank 6 by the defibrated material pushing cylinder 50A and falls, and A first circular cylindrical portion 64c disposed directly above, and a second circular cylindrical portion 64c extending from one side of the first circular cylindrical portion 64c toward an opening 65 provided on a side wall of the waste paper processing apparatus main body and inclined downward. The circular cylindrical portion 64d and the first circular cylindrical portion 64
c is attached to one side of the lower portion of the first circular cylindrical portion 64c via a hinge 66, and swings in a horizontal plane about the hinge 66 to form a first circular cylindrical portion 64c.
And a circular closing plate 67 that closes the lower end opening so as to be openable and closable.

Therefore, the defibrated material extruding cylinder 50
The defibrated material block pushed and dropped by A always passes through the inside of the first circular cylindrical portion 64c of the defibrated material block sorting means 64, and is collected in the lower bucket 26. Therefore, when the inside of the bucket 26 is full, the defibrated material blocks that fall later are deposited in the first circular cylindrical portion 64c. When this accumulation proceeds to the vicinity of the entrance to the second circular cylindrical portion 64d serving as a bypass passage, the defibrated material block that falls thereafter is forcibly introduced to the entrance of the second circular cylindrical portion 64d. Then, it slides down in the bypass, falls into the spare bucket 69 from the opening 65, and is collected.

In this embodiment, a contact method is used for the full detection sensor. That is, the door 111 on the front surface of the waste paper processing apparatus main body is provided with a full detection sensor 112 in which the contactor 112a extends to the vicinity of the lower part of the defibrated material block sorting means 64 in the upper part of the bucket 26 and an angle adjusting mechanism (not shown). Mounted through. The angle adjustment mechanism is
For example, it is a mechanism in which a link mechanism and a gear mechanism are combined, and in conjunction with opening and closing of the door 111, when the door is opened, the contact 112a of the full detection sensor 112 is lifted and held in a horizontal state, and when the door is closed, full detection is performed. Contact 112 of sensor 112
is set downward so that its tip is located near the lower part of the first circular tubular portion 64c of the defibrated material block sorting means 64. When the fullness detection sensor 112 detects that the bucket is full, the control system notifies the user that the bucket 26 is full by an alarm, and then stops the apparatus when the full state continues for a predetermined time (for example, two hours). Works.

Further, a unit of the control device 70B is disposed behind the bottom of the waste paper processing apparatus main body. The control device 70B controls the pump 21 of the surfactant solution supply unit D based on the detection result of the float switch 37, and controls the waste paper feeder 4 of the waste paper supply unit A based on the detection result of the concentration sensor 36. , The rotation mode of the stirrer 7 of the defibrating unit B
Switching control is performed at regular time intervals (for example, 15 seconds) or by checking the load current of the stirrer driving motor 9 or by checking the rotation speed of the stirrer driving motor 9, and controlling each of the conveyor driving motors of the defibrated material compression unit C. The screw conveyor 39 and the clutch 150 are controlled to be turned on and off by looking at the load current or the number of rotations of 43 or the elapsed time after the start of driving, and two sets of defibrated material pressing cylinders of the defibrated material compression section C (one side). (Not shown) and a function of controlling the operation timing of the single defibrated material pushing cylinder 50A and outputting a warning to an alarm based on the detection result of the full detection sensor 68. These operations are performed according to a program. Although the arrangement position of the unit of the control device 70A has been described as being the bottom rear in the waste paper processing device main body, the control device does not need to particularly limit the arrangement position.
Needless to say, it can be installed at an upper part in the waste paper processing apparatus main body or at any other place as long as there is room in space. Other configurations are the same as those in the first embodiment.

In this embodiment, the control system determines whether or not the amount of the defibrated material in each of the defibrated material block forming cylinders 44A and 44B has reached a predetermined amount, based on the load current of the conveyor driving motor 43. Judgment is made based on the rotation speed or the elapsed time after the start of driving, and the load current increases, or the rotation speed decreases, or the elapsed time after the start of driving is a predetermined time (for example, 20 seconds).
When the time elapses, the screw conveyors 39A and 39B are simultaneously stopped.

The amount of the defibrated material in the defibrated material block forming cylinder 44 reaches a predetermined amount, and the screw conveyors 39A, 39A, 3
When 9B stops, each defibrated material pressing cylinder (one not shown) 46 operates to start pressing the defibrated material in each of the defibrated material block forming cylinders 44A and 44B. Each defibrated material in each defibrated material block forming cylinder 44A, 44B is
Since the back surface is supported by a single holding plate 53A set to be long on the side of the backup member 54, each of the defibrated material presses is formed in each of the defibrated material block forming cylinders 44A and 44B. Cylinder (one not shown) 46
Water is simultaneously removed by the pressure between the pressing plates 49, 49 on the side of the backup member 54 and the single pressing plate 53A on the side of the backup member 54, and the respective pressing plates 49, 49, the pressing plate 53A, and the defibrated material block are formed. In two spaces surrounded by the inner walls of the use cylinders 44A and 44B, the defibrated material blocks are formed in the same shape as those spaces. In the control system, it is determined whether or not the press, that is, the water removal is completed, based on the press pressure or the elapsed time of each defibrated material press cylinder (one not shown) 46, and the press pressure is set to a set value (for example, 1200).
Kg / cm ² ), or when the pressing time elapses a predetermined time (for example, 20 seconds), once the operation of each of the defibrated material pressing cylinders (one not shown) 46 is stopped, The extruding cylinder 50A is operated to retreat the pressing plate 53A, that is, the extruding block 52A, to release the opening surfaces on one end side of each of the defibrated material block forming cylinders 44A and 44B. Next, the defibrated material press cylinders (one not shown) 46 are operated again to further advance the respective press plates 49, 49, and the defibrated material blocks are each defibrated material block forming cylinder 44A, Extrude onto respective pedestals 56, 56 outside of 44B.

When each defibrated material block is extruded onto each of the receiving trays 56, 56, the defibrated material extrusion cylinder 50A is operated to push the defibrated material block 52A and the pressing plate 5 integral therewith.
3A is advanced, and the defibrated material blocks on the receiving trays 56 and 56 are both extruded to the defibrated material recovery section E at the subsequent stage, and at the same time, one end side opening of each of the defibrated material block forming cylinders 44A and 44B. Close the surface. In the process of extruding the defibrated material block to the subsequent defibrated material recovery section E, water droplets of the surfactant solution and debris of the defibrated material adhering to the surfaces of the receiving trays 56, 56 are removed from the defibrated material. It is extruded together with the block, falls into the gap between the receiving trays 56 and the passage 57, and returns into the defibrating tank 6.

Each defibrated material block which is extruded from each of the receiving tables 56 and 56 by the defibrated material pushing cylinder 50A and falls is used by the defibrated material block distributing means 64 provided in the middle of these falling paths. After passing through the first circular cylindrical portion 64c, it is collected in the lower bucket 26. The above operation is repeated independently and continuously by the defibrated material compression systems 91A and 91B, and when the bucket 26 is full, the full detection sensor 112 detects that the bucket 26 is full. In the control system, when the full state detection sensor 112 detects that the bucket 26 is full, an alarm is output as an alarm, and when the full state continues for a predetermined time (for example, two hours), the apparatus is stopped.
While this full state continues, the defibrated material block that falls later is deposited in the first circular cylindrical portion 64ca,
This accumulation forms the second circular cylindrical portion 64d serving as a bypass passage.
The defibrated material block that falls after entering the vicinity of the entrance to the second circular cylinder portion 64d is forcibly introduced into the entrance of the second circular cylindrical portion 64d, slides down the bypass, and enters the spare bucket 69 from the opening 65. Drops and is collected.

Further, in the control system, the concentration of the suspension of the defibrated material in the defibration tank 6 becomes low due to, for example, the waste paper 31 on the waste paper insertion table 3 being cut out, and the load of the conveyor driving motor 43 is reduced. When the current decreases or the number of rotations increases, the transmission of the power of the second pulley 101 is cut off by the clutch 150, and the screw conveyor 39 on one side (the wall of the defibrating tank) is closed.
Only A is rotated, and the other screw conveyor 39B (far side from the defibrating tank wall) is stopped. When this light load state continues for a predetermined time (for example, 5 minutes), the rotating screw conveyor 39A is also stopped. As a result, it is possible to suppress unnecessary power consumption. In the control system, when only the screw conveyor 39A is rotated, the defibrated material pressing cylinder (not shown) on the defibrated material block forming cylinder 44B side is also stopped, and the defibrated material is further extruded. It is set so that the range of movement of the push-out block 52A by the cylinder 50A is reduced. That is, the defibrated material extrusion cylinder 50A
3. In other words, even when the defibrated material pushing cylinder 50A is retracted, the defibrated material block on the stopped side of the defibrated material pressing cylinder is set so that the retracted position of the deflated material is the position shown in FIG. The opening surface on one end side of the forming cylinder 44B is closed by the extrusion block 52A, and the advance / retreat operation of the defibrated material extrusion cylinder 50A is made to correspond only to the screw conveyor 39A at the wall of the defibration tank 6. Thus, when the waste paper 31 is out of paper, the defibrated material pushing cylinder 5
The cycle time required for 0A advance / retreat can be shortened, and the efficiency of waste paper processing can be improved.

As described above, the waste paper processing apparatus 1 of this embodiment
00 denotes two defibrated material compression systems 91A and 91 in the defibration tank 6.
Since the defibrated material extrusion cylinder 50A and the conveyor drive motor 43 used in B are shared to have a single configuration,
The cost can be significantly reduced, and the reduced number of conveyor driving motors and defibrated material pushing cylinders creates an empty space, thereby facilitating the arrangement of other members.

In each of the above-described embodiments, a case where two defibrated material compression systems are installed in the defibration tank 6 has been described as an example. May be provided with three or more defibrated material compression systems. Even in such a case, the same operation and effect as those of the above-described embodiments can be obtained.

[0068]

As described above, according to the present invention, a plurality of defibrated material conveying means and defibrated material block forming means are provided, and each of the defibrated material conveying means and each defibrated material block forming means is provided. , Both of which are located higher than the water surface in the defibration tank and the defibration tank, can improve waste paper treatment efficiency and leak from each defibration material transport system and each defibration material compression system. All the water to be removed (defibrated material suspension water) can be dropped back into the defibration tank and the defibrated material after removal of water is blocked and the conventional advantage of good waste handling is lost. In addition, the configuration around the water is simplified, and contamination of the replenishing surfactant solution can be prevented.

Further, according to the present invention, since each defibrated material conveying means is connected to an independent driving motor, each defibrated material conveying means can be controlled independently. The material can be conveyed randomly to each defibrated material block forming means.

Further, according to the present invention, the load current increases, the rotational speed decreases, or the elapsed time after the start of driving is determined by looking at the load current, the rotational speed, and the elapsed time after the start of driving of each drive motor. While stopping the defibrated material transporting means for which the time has passed for a predetermined time, when the load current of each drive motor decreases or the number of rotations increases, one of the defibrated material transporting means is stopped. Since a control device is provided to stop and stop all defibrated material conveying means after a predetermined time, the defibrated material can be randomly transported to each defibrated material block forming means, and the defibrated material transport efficiency can be improved. When the concentration of the suspension of the defibrated material in the defibration tank is reduced due to the breakage of waste paper, the load current of each drive motor is reduced, or the rotation speed is increased. Of the defibrated material conveying means to be driven The decrease, after a predetermined time defibrated material conveying means who is rotating can also be stopped.
As a result, unnecessary power consumption can be suppressed, and running costs can be reduced.

Further, according to the present invention, a single defibrated material extruding means is shared with a plurality of defibrated material conveying means and defibrated material block forming means provided in the defibrating tank. In addition to the improvement in paper processing efficiency, the reduction in the number of defibrated material extruding means can reduce the cost, generate an empty space, and facilitate the arrangement of other members.

Further, according to the present invention, the defibrated material conveying means are connected to each other via the power transmission means, and one of them is directly connected to a single driving motor. Therefore, the cost can be further reduced, and an empty space is generated, and the arrangement of other members is further facilitated by the reduction in the number of drive motors.

Further, according to the present invention, since the clutch is provided in the power transmission system of the power transmission means, the number of the defibrated material transport means driven by a single driving motor can be adjusted.

Further, according to the present invention, the load current increases, the rotational speed decreases, or the elapsed time after the start of driving is determined by looking at the load current, the rotational speed, and the elapsed time after the start of driving of the driving motor. When a predetermined time has elapsed, each defibrated material conveying means is stopped, and when the load current of the driving motor decreases or the number of rotations increases, power transmission to other defibrated material conveying means by the clutch is performed. And a control device for stopping all the defibrated material conveying means after a predetermined time can improve the defibrated material conveying efficiency, and can also reduce the amount of waste paper in the defibrating tank due to waste paper or the like. When the concentration of the suspension water of the defibrated material becomes thin and the load current of each drive motor decreases or the number of rotations increases, the power transmission from the clutch to the preceding defibrated material conveying means is interrupted, and Direct to one drive motor Rotate the only defibrated material conveying means connected side, after a predetermined time defibrated material conveying means who is rotating can also be stopped. As a result, unnecessary power consumption can be suppressed, and running costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a right side sectional view showing an entire configuration of a waste paper processing apparatus according to a first embodiment of the present invention.

FIG. 2 is a front sectional view of the waste paper processing apparatus according to the first embodiment.

FIG. 3 is a right side sectional view showing an entire configuration of a waste paper processing apparatus according to a second embodiment of the present invention.

FIG. 4 is a front sectional view of a waste paper processing apparatus according to a second embodiment.

FIG. 5 is a front sectional view showing the entire configuration of a conventional waste paper processing apparatus.

FIG. 6 is a left side sectional view of a conventional waste paper processing apparatus.

FIG. 7 is a right side sectional view of a conventional waste paper processing apparatus.

[Explanation of symbols]

Reference Signs List A waste paper supply section B defibration section C defibrated material compression section D surfactant solution supply section E defibrated material recovery section 4 waste paper feeder 5 surfactant solution 6 defibration tank 7 stirrer 20 tank 21 pump (surfactant) Agent solution supply means) 25 defibrated material block 26 bucket (defibrated material recovery means) 30, 100 waste paper processing device 31 waste paper 39, 39A, 39B screw conveyor (defibrated material transport means) 40A, 40B, 42, 101 Pulley (power transmission means) 41A, 41B Belt (power transmission means) 43 Motor for driving conveyor 44, 44A, 44B Cylindrical body for forming defibrated material block 46 Cylinder for defibrated material press 50, 50A Cylinder for defibrated material extrusion ( Defibrated material pushing means) 52, 52A Extruding block 64a First rectangular cylindrical portion (chute) 70A, 70B Controller 150 Clutch

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B09B 5/00 D21B 1/32

Claims (7)

(57) [Claims] 1. A waste paper feeder for sending waste paper, a surfactant solution supplied from a surfactant solution supply means is stored, and the surfactant solution is permeated into waste paper supplied from the waste paper feeder. A fibrillation tank for softening the waste paper provided in the fibrillation tank and stirring the surfactant solution in the fibrillation tank to fibrillate the softened waste paper into fibers; A plurality of defibrated material transporting means provided in the tank, for transporting the defibrated material of waste paper defibrated into fibers in the surfactant solution in the defibrating tank above the water surface, A plurality of defibrated material blocks formed at a position higher than the water surface in the defibrating tank and provided with a cylindrical body for press-molding the defibrated materials conveyed by the respective defibrated material conveying means into blocks. Means, along the one end side opening surface of the cylindrical body of each defibrated material block forming means A plurality of defibrated material extruding means each having an extrudable block capable of moving forward and backward, and extruding each defibrated material block press-formed and dewatered by each of the defibrated material block forming means; A chute for guiding each defibrated material block extruded and dropped by the defibrated material pushing means to the defibrated material collection means, and a defibrated material block sliding down the chute. A waste paper processing apparatus comprising: a defibrated material collection means received below. 2. The waste paper processing apparatus according to claim 1, wherein each of the defibrated material conveying means is connected to an independent driving motor. 3. The load current increases, the number of rotations decreases, or the elapsed time after the start of the drive elapses a predetermined time, based on the load current, the number of revolutions, and the elapsed time after the start of the drive of each drive motor. When the load current of each drive motor decreases or the number of rotations increases, one of the defibrated material transport means is stopped, and the defibrated material transport means is stopped for a predetermined time. 3. The waste paper processing apparatus according to claim 2, further comprising a control device for stopping all the defibrated material conveying means. 4. A waste paper feeder for feeding waste paper, a surfactant solution supplied from a surfactant solution supply means is stored, and the surfactant solution is permeated into waste paper supplied from the waste paper feeder. A fibrillation tank for softening the waste paper provided in the fibrillation tank and stirring the surfactant solution in the fibrillation tank to fibrillate the softened waste paper into fibers; A plurality of defibrated material conveying means for juxtaposed in the tank and conveying the defibrated waste paper defibrated in a fiber form in the surfactant solution in the defibrating tank above the water surface, respectively; A plurality of defibration units provided in parallel with each other at a position higher than the water surface in the defibration tank and provided with a tubular body for press-forming the defibrated material conveyed by each of the defibrated material conveying means into a block shape. Material block forming means, and one of the cylinders of each of the defibrated material block forming means. It has an extruding block which is set to a length capable of simultaneously closing these opening surfaces over the side opening surfaces and which can be advanced and retracted along these opening surfaces. A single defibrated material extruding means for extruding each watered defibrated material block together, and a defibrated material collecting means for receiving the defibrated material block extruded and dropped by the defibrated material pushing means below. Waste paper processing equipment. 5. The waste according to claim 4, wherein each of the defibrated material conveying means is connected to each other via a power transmission means, and one of the defibrated material conveying means is directly connected to a single driving motor. Paper processing equipment. 6. The waste paper processing apparatus according to claim 5, wherein the power transmission means includes a clutch in the power transmission system. 7. When the load current increases, the number of rotations decreases, or the elapsed time after the start of the drive elapses a predetermined time, the load current, the number of rotations, and the elapsed time after the start of the drive are monitored. When the load current of the driving motor is reduced or the number of revolutions is increased while stopping the defibrated material conveying means, the transmission of power to the other defibrated material conveying means by the clutch is interrupted, and 7. The waste paper processing apparatus according to claim 6, further comprising a control device for stopping all defibrated material conveying means after a lapse of time.