JPH06146184A - Dry type opener - Google Patents

Abstract

PURPOSE:To provide an opener capable of opening beltlike waste paper by a dry process so as to minimize the breakage of fiber. CONSTITUTION:This opener is obtained by radially erecting plural blade plates 6 on one surface of a rotating disk 2 at a prescribed distance from the rotation central shaft part and respectively providing leading plates 3 composed of an elastic plate having the free end of the tip in the centrifugal direction at the tip of each blade body, housing the rotating disk so as to locate with a slight gap opposite to one surface of a tooth tip of each leading plate in a casing body 10 of an internal gear shape, securing a lid body 11 having a raw material suction port 12 to one surface of the casing body and an auxiliary easing body 44 to the other surface, housing a blasting fan 40 for discharging the raw material sucked from the raw material suction port together with an air stream from a discharge port 42 of the auxiliary casing body and inserting a cutter 13 having helical and protruding ridgy cutting blades on the peripheral surface of a rotating cylindrical body into the lid body so that a part of the peripheral surface may approach the rear end edges of the blade plates with a slight gap from the rear end edges of the blade plates.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a dry defibration device for two-fold defibration of a material formed by binding fibrin in a dry method. It relates to a fiber device.

[0002]

2. Description of the Related Art The present inventor has previously filed Japanese Patent Application No. 04-26285.
No. 1 proposed a dry defibration device. This defibrating device will be described with reference to FIG. 1. A plurality of blades 6, 6, 6 are provided on one surface of the rotating disk 2 with a certain distance from the center axis of rotation.
... are provided upright in a radial manner, and lead plates 3 each made of an elastic plate having a distal end in the centrifugal direction as a free end are provided at the tip of each wing body 6, and the rotary disk 2 is formed as an internal gear. The lead plates 3 are housed in the casing body 10 so as to face the tooth tips of the casing body 10 with a certain gap therebetween, and the lead plates 3 of the rotating disk 2 of the casing body 10 are accommodated.
A lid 11 having a raw material suction port 12 is fixed to the surface on which 6, 6, ... Are erected, and a sub-casing body 44 is fixed to the surface opposite to the fixing surface of the lid 11. The sub-casing body 44 accommodates a blower fan 40 that discharges the raw material sucked from the raw material suction port 12 from the discharge port 42 of the sub-casing body 44 together with the air flow. The lead plate 3 is passed at high speed in the vicinity of the inner circumference of the tooth gear-shaped casing body 10 to generate a strong turbulent vibration sound field, and the waste paper is passed through this turbulent vibration sound field. It is designed to be disentangled with the resonance vibration of the plate 3.

[0003]

However, it has been found that the above-mentioned conventional defibrating device has a problem that if the used waste paper is large, it is caught on the rear end side of the blade 6.

That is, the used waste paper fed from the direction of the central axis of rotation moves in the centrifugal direction due to the centrifugal force due to the rotation of the rotating disk 2 and the air flow from the blower fan. It becomes a baffle that resists the movement of waste paper. Therefore, the waste paper tends to be caught at the rear end portion of the blade 6, and in particular, if the raw waste paper is large, the raw waste paper M is folded in two at the rear end portion of the blade 6 as shown in FIG. Will be caught.

If the raw material waste paper M is caught as described above, the resistance against the movement of the raw material waste paper M increases, and the raw material waste paper M becomes more likely to be caught successively in sequence thereafter, and gradually piles up, eventually leading to a blockage accident. However, if the catching of the used waste paper M locally occurs before that, the rotational balance of the rotary disk 2 will be lost.

In the device of the present invention, since the lead plate 3 is moved at a high speed to generate a turbulent vibration sound field, the rotating disk 2 is rotated at a high speed. There is a serious problem that if the rotation balance is disturbed, vibration and noise will be generated, which may cause damage to the equipment.

In the past, in order to solve the above-mentioned problem, the raw waste paper was cut into a size of about 4 mm square and fed to prevent the catch on the blades 6, but the catch on the waste paper M is still prevented. It cannot be said that there is nothing, and it is complicated to preliminarily cut waste paper into such small dimensions, and this cutting also has the problem that it cuts the pulp fibers of the waste paper to that extent. There is.

Therefore, the present invention has been made to solve the above-mentioned problems, and a band-shaped waste paper cut by a grooved drum type cutter whose technology is established as an office document cutting machine (shredder) is used as a raw material waste paper M. It is an object of the present invention to provide a dry defibration device for used paper that does not catch the raw material even when it is delivered.

[0009]

In order to solve the above-mentioned problems, in order to solve the above-mentioned problems, the structure of the present invention based on the above-mentioned object has a certain distance from the central axis of rotation in order to solve the above-mentioned problems. Are separated from each other and a plurality of blade plates 6, 6, 6 ... Are erected in a radial manner, and each of the blade bodies 6 is provided with a lead plate 3 made of an elastic plate whose distal end in the centrifugal direction is a free end. The rotary disk 2 is housed in a casing body 10 having an internal gear shape such that each lead plate 3 is located so as to face the tooth tips of the casing body 10 with a certain gap. A lid 11 having a raw material suction port 12 is provided on the surface side of the main body 10 on which the vanes 6, 6, 6 ...
A sub-casing body 44 is fastened to the side of the lid body 11 opposite to the fastening surface, and the raw material sucked from the raw material suction port 12 is flowed into the sub-casing body 44 together with the air flow. A blower fan 40 that blows out from an outlet 42 is housed, and the lid 11 has a cutter 13 provided with a spirally protruding cutting blade 15 on the peripheral surface of the rotary columnar body 14, part of the peripheral surface of which is the blade. This is a technical means in which the plate 6 is inserted so as to be close to the rear end edge of the plate 6 with some space.

[0010]

Therefore, according to the apparatus of the present invention, when the used waste paper M is caught on the trailing edge of the blade 6, the amount of accumulated waste paper increases and the used waste paper is cut when passing through the cutter 13. The function of removing the catch and moving the rotating disk 2 in the centrifugal direction is exhibited.

[0011]

Embodiments of the present invention will now be described with reference to the accompanying drawings. In the figure, 2 is a rotating disk, and a plurality of blades 6, 6, 6 ... Are erected radially on one surface of the rotating disk 2 with a certain distance from the center axis of rotation, Lead plates 3 each made of an elastic plate whose distal end in the centrifugal direction is a free end are provided at the ends.

It goes without saying that the rotary disk 2 is rotated by the drive source 5, and the lead plate 3 is a thin plate having elasticity such as a scraper (in the embodiment, the aluminum plate is the aluminum plate as described above). Used.) Is used.

In the illustrated embodiment, the rotary disc 2 has a holder cylinder 52 fixed to the drive shaft 51 of the drive source 5 (not shown in FIG. 1; however, the drive shaft 51 and the holder cylinder 52 are keys). And they rotate together.)
It is fixed to the holder cylinder 52. Then, the radiation blades 6, 6, ... Are fixed on the rotating disk 2, and further,
A ring disk 22 is fixed to the upper ends (right ends of “FIG. 1”) of the radiation blades 6, 6, 6 ...

The lead plates 3 may be fixed to the radiation blades 6 at their base ends, and in this embodiment, they are attached to the tips of the radiation blades 6 by means of tacking or the like. When each radiation blade 6 is made of an elastic plate material, the tip of the lead plate 3 can also be used as the lead plate 3. In this case, the lead plate 3 is not separately prepared and attached, but each radiation plate Wings 6
It is sufficient that the tip of the above is projected from the rotary disc 2 and the ring disc 22 with a certain size, or is not connected to the rotary disc 2 and the ring disc 22.

The rotary disk 2 is housed in the casing body 10 in the form of an internal gear with the lead plates 3 facing the tooth tips of the casing body 10 with a certain gap. I am doing it.

The casing body 10 has ridges 10a, 10a, 10a ... And valleys 10b, 10b on its inner peripheral surface.
And 10b ... are alternately provided, and the valley portion 10 is usually provided.
Although b, 10b, 10b ... Are formed by cutting, conversely, a liner forming peaks 10a, 10a, 10a ... may be fixedly formed at fixed intervals on the inner peripheral surface. Further, although the peak portion 10a and the valley portion 10b are formed in a triangular wave shape in the drawing, it goes without saying that the cross-sectional shape may be variously changed such as a rectangular wave and a sine wave.

A lid 11 having a raw material suction port 12 is fixed to the surface of the casing body 10 on which the blades 6, 6, 6 ... A sub-casing body 44 is fixed to the side opposite to the fixing surface of the body 11,
In the sub-casing body 44, the raw material sucked from the raw material suction port 12 is discharged together with the air flow into the discharge port 4 of the sub-casing body 44.
A blower fan 40 for discharging from 2 is housed.

A raw material feeding device is usually connected to the raw material suction port 12, and in this embodiment, a groove drum type cutting machine 72 is provided below the conveyance end side of the first belt conveyor 71. The conveyance start end of the second belt conveyor 73 is located at the lower end of the discharge port of the grooved drum type cutter 72, and the raw material supply pipe 70 is provided at the conveyance end of the second belt conveyor 73.
Is opened at one end (this opening is indicated by a hopper 74 in the drawing), and the other end of the raw material supply pipe 70 is connected to the raw material suction port 12.

The raw material fed to the raw material feeding pipe 70 rides on the air flow generated by the blower fan 40,
The ring paper 2 flows into the casing main body 10 from the used paper inlet 12 (in the axial direction), and the ring paper 2 comes from the central empty space of the ring paper 22.
2 and the rotary disk 2, and each radiation blade 6, 6, 6 ...
・ Almost evenly distributed between the rotary disk 2 and the centrifugal disk as the rotary disk 2 rotates, and the radial disks 6, 6, 6 ... It moves in each space in the centrifugal direction (the direction of arrow P3 in "Fig. 2" and "Fig. 6"), and eventually enters into the trough 10b of the casing body 10 as shown most clearly in "Fig. 5". There is.

When the lead plate 3 moves in the direction shown by the arrow P1 in FIGS. 3 and 4, the peripheral speed of the lead plate 3 exceeds a certain value (depending on various conditions, the crest portion 10a). (When the peripheral speed exceeds 50 m / sec, when the lead plate 3 is an aluminum plate having a thickness of 1 mm and a bendable length of 10 mm, and the valley portion 10b is set to a value corresponding to the side of an equilateral triangle of 4 mm per piece) The lead plate 3 serves as a resonance plate for the pulsating flow and the vortex flow, and the lead plate 3 vibrates in a range shown by an arrow P2 in FIG. 4, and a strong turbulent vibration sound field H is generated in the vicinity thereof. Occurs.

The raw waste paper is used in the valley portion 10b.
It is exposed to the turbulent vibration sound field H, and further contacts a part of the vibrating lead plate 3, and is disentangled by the turbulent vibrating sound field H and the vibration of the lead plate 3, and is sequentially blown by the air flow of the blower fan 40. It moves to the sub casing body 44 side along the inside of the valley portion 10b.
However, some of the raw material waste paper M has a mountain portion 10a rather than a valley portion 10b.
In some cases, the raw material waste paper that has passed over the mountain portion 10a enters the next valley portion 10b and is gradually defibrated.

Then, the raw material waste paper M is disentangled by passing through the inside of the valley portion 10b, guided into the sub-casing body 44, and eventually discharged from the discharge port 42. Has a spiral flow path 43 having a discharge port 42, and discharges an air flow (including disintegrated waste paper) flowing from the shaft portion from the discharge port 42 through the centrifugal direction or the spiral flow path 43. It's done. The blower fan 40 may be a conventionally known one, but in this embodiment, it is held by the holder cylinder 52 and rotated by the drive source 5 together with the rotary disk 2.

Further, in the illustrated embodiment, the raw material conveying device 4 is used.
A direction changing distributor 45 is arranged in front of 0. Since the blower fan 40 that generates an airflow in the radial direction from the rotation axis direction is used, the waste paper that has moved in the centrifugal direction on the rotating disk 2 is disentangled, and then the blower fan 4 with the airflow.
The direction of movement must be changed in the direction of the 0 axis. Therefore, in the illustrated example, the space between the rotary disk 2 and the blower fan 40 is partitioned by the second ring disk 46, in other words, the other surface side of the casing body 10 is closed by the second ring disk 46 having an empty space in the center, The raw material disentangled with the air flow passes through between the second ring disk 46 and the back side of the rotary disk 2 and heads for the central empty space.

A groove 10c having a substantially semicircular cross section is provided at a position on the back side of the rotary disk 2 of the casing body 10, and this groove 10c secures an empty portion for smoothly changing the direction.

When the direction of the air flow is changed as described above, it is assumed that the disentangled raw material to be mixed is locally biased. Therefore, in the present embodiment, in order to prevent this bias as much as possible, the distributor 45 is used. The second distributor 45 is formed by fixing the second radiating blades 47, 47, 47, ... Between the second ring disk 46 and the rotary disk 2 on the second ring disk 46. is there.

In this kind of high-speed rotating equipment, the local deviation of the raw material or the like becomes a source of vibration, which causes noise and further shortens the life of the apparatus. Therefore, it is necessary that the airflow and the raw material flow uniformly in each part,
The direction changing distributor 45 prevents the flow rate from drifting due to its rectifying action.

The direction changing distributor 4 is also provided.
5 also has a function of braking the air flow by complicating the flow path. When used paper passes through the casing body 10 at high speed, it may not be defibrated sufficiently. On the other hand, since the capacity increases when defibrated, a certain air flow capacity is required. Therefore, it is most convenient that the flow velocity is slow in the disentanglement portion and the flow rate is large in the blower fan 40. Therefore, a curved air flow path is provided between the casing main body 10 portion and the blower fan 40 to obtain an air flow that meets both purposes. Although not shown in the drawing, if the raw material suction port 12 is provided with an unillustrated orifice or the like to narrow its diameter, the above-mentioned braking effect can be effectively obtained.

Further, a separator for separating the defibrated raw material and the air flow is usually connected to the discharge port 42. In the illustrated example, a cyclone separator 80 is used for this separator. . Incidentally, this cyclone separator 80 is a conventionally known one, and the air current is blown together with the defibrated raw material into the cylindrical main body 81.
The raw material disintegrated into a swirl flow inside the main body flows out through the lower outlet port 82, and the airflow through the upper exhaust port 83.

The lid 11 has a rotating column 14
13 with a spiral ridge-shaped cutting blade 15 on the peripheral surface of
Is inserted so that a part of its peripheral surface is close to the rear end edge of the vane 6 with some space.

Although the cutter 13 is referred to as the "rotating cylinder 14", the rotating cylinder 14 may be fixed without rotating, but if it remains fixed, the cutter 1
Since the raw material waste paper M may be caught and deposited on the sheet 3, the drive source 16 is used to rotate the raw material paper M in this embodiment. It is desirable that a part of the peripheral surface is as close as possible to the rear edge of the blade 6.

[0031]

As described above, the present invention utilizes the turbulent vibration sound field defibration action and the mechanical vibration defibration action due to the vibration of the lead plate 3, so that the fiber can be defibrated without being cut into short fibers. It is possible to provide a defibration device.

However, it cannot be affirmed that the fibers are not cut at all because the turbulent sound field defibration action and the mechanical vibration defibration action are used.
When disintegrating waste paper cut into m-squares, most of the fiber lengths were around 2 mm, compared to 4 mm wide and 20 cm long strips of raw material, the fiber length was 2 mm. Around 0.5 mm is 60% or more, there is almost no cut into powder called paper dust, and defibrated fibers that can be used in various applications as fibrous substances can be obtained as they are. there were.

Further, a remarkable effect of the present invention is that since it is a dry type and does not use water and the apparatus is simple and compact, it can be immediately defibrated by the source of waste paper. Recycled paper can be easily disintegrated not only as a raw material for recycled paper, but also as other fiber materials (specifically, building materials, cushioning materials, etc.), and even as biomass. It is possible to provide a dry defibration device capable of diversifying the use of the above and reusing valuable earth resources at a high recovery rate.

[Brief description of drawings]

FIG. 1 is a partially sectional front view of a defibrating device unit.

FIG. 2 is a plan view of a casing portion of the defibrating device.

FIG. 3 is an enlarged front view of an essential part for explaining the operation.

FIG. 4 is an enlarged front view of an essential part for explaining the same operation.

FIG. 5 is a plan view of a casing portion according to another embodiment.

FIG. 6 is an overall front view of the device of the present invention.

FIG. 7 is a partial plan view of a conventional device.

[Explanation of symbols]

 2 rotating disk 3 lead plate 6 vane 10 casing body 11 lid body 12 raw material suction port 13 cutter 14 rotating column body 15 cutting blade 40 blower fan 42 discharge port 44 sub-casing body

Claims (1)

[Claims] 1. A plurality of blades (6, 6, 6 ...) Are erected radially on one surface of the rotating disk (2) at a certain distance from the center axis of rotation, and each blade (6) is provided. Lead plates (3) each made of an elastic plate having a distal end in the centrifugal direction as a free end are provided respectively, and the rotating disc (2) is provided in each casing body (10) in the shape of an internal gear. (3) is the casing body (1
0) is placed so as to be opposed to the tooth tip with a slight gap, and the vanes (6, 6, 6 ...) Of the rotary disk (2) of the casing body (10) are stored. A lid (11) having a raw material suction port (12) is attached to the erected surface side, and a sub-casing body (44) is attached to the side opposite to the attachment surface of the lid (11). The raw material suction port (1
2) A blower fan (4) that discharges the raw material sucked from the sub-casing body (44) through the discharge port (42) together with the air flow.
0) is housed, and the lid body (11) is provided with a cutter (13) provided with a spirally projecting cutting blade (15) on the peripheral surface of the rotary columnar body (14),
A dry defibration device in which a part of the peripheral surface is inserted so as to be close to the rear end edge of the vane (6) with a slight gap.