JPS6026687B2 - Styrofoam crushing, feeding, storage, and recycling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention forms a circumferential green groove in the outer circumferential green of a disk body, supports the pair of disk bodies facing each other so as to be able to rotate at a relatively high speed, and
A method for recycling expanded polystyrene described in Japanese Patent Publication No. Akihiro-12512, which is configured to recover the pulverized expanded polystyrene fed into the disk body as granulated recycled material from the peripheral groove, is patented as a principle patent. This invention relates to a styrofoam recycling processing device that is realized as a practical dedicated machine.

As is well known, the foamed resin material is several times larger, for example, 30~
Styrofoam (polystyrene foam), which is foam-molded into a 8-section shape, is useful in a variety of applications, such as as cushioning and packaging materials for various devices, as insulation materials, and packaging containers.

However, this waste of Styrofoam after use, or products with defective molding during molding, or their molding history, are very expensive because they are highly foamed, and do not become obsolete, so they are not suitable for landfill disposal. In addition, incineration has the disadvantage of producing bad smoke and significantly damaging the scale incinerator. On the other hand, foamed polystyrene is usually white unless colored, making it easy to identify and lightweight, making it easy to collect and collect.
In view of these points, Tsubaki Publication No. 54-12512 describes the concept of "forming a green sea area on the outer periphery of the disk bodies, supporting the pair of disk bodies facing each other so that they can rotate at a relatively high speed, and A means for recycling expanded polystyrene has been provided in which the pulverized expanded polystyrene fed to the styrofoam is recovered from the peripheral green groove as a granulated recycled material.

However, in the process of recycling expanded polystyrene as described above, if the amount of expanded polystyrene fed between a pair of discs, specifically the fixed disc and the rotary disc, is uneven, for example, the amount of supplied polystyrene foam may be too large. If the speed is too high, the centrifugal force of the high-speed rotary disc will forcefully compress it in the direction of its periphery, and the recycled material that should be processed and recovered as granulated fine particles from the peripheral grooves will turn into powder. There are phenomena in which some of the styrofoam is left behind and emitted, or some of it becomes burned-in and sticks to the grooves, and if the amount of Styrofoam supplied is small, it softens and melts and is disposed of. As a result, it was difficult to reuse them effectively as granulated recycled materials.

From this point of view, the present invention makes it possible to maintain a constant supply amount of polystyrene foam fed between a pair of discs consisting of a fixed disc and a rotary disc, thereby eliminating product unevenness as a recycled material and improving processing speed. This is intended to further improve accuracy. In addition, as mentioned above, Styrofoam waste, etc., is often collected with stones attached or nails inserted into it, and these foreign substances are removed as much as possible. Even though the polystyrene foam is subjected to recycling processing work, it is necessary to avoid it from being subjected to crushing processing and recycling processing work that is overlooked.

On the other hand, styrofoam itself is lightweight and can be easily levitated or brought into a floating state by a slight external force, such as air force. From this point of view, the present invention not only performs the preliminary work of removing foreign matter before crushing the foamed polystyrene, but also removes foreign matter due to the lightweight characteristics of the foamed polystyrene during the crushing process and the process before the recycling process. It is intended that removal means will be provided to speed up the recycling process.

In addition, by arranging the necessary mechanical components compactly, we have achieved smaller size and higher performance of the equipment, and the entire equipment can be moved and fixed as needed, thereby reducing restrictions on installation location. Requires a separate building or special building.
The aim was to automate the process from crushing to recovery of Styrofoam without any problems, and ultimately to make a significant contribution to this type of technical field as a practical dedicated machine. In the evening of explaining the embodiments of the present invention according to the accompanying drawings, an overview of the entire apparatus according to the present invention will be described, as shown in FIG. The structure is organic and closely inseparably integrated.

Reference numeral 1 denotes a machine body having a box-like frame structure and covering the periphery of the machine frame, and casters 2 are fixed to the bottom of the machine body to ensure movement of the entire apparatus.

A and B are the coarse pulverizer and fine pulverizer made of styrene foam installed in the front and rear parts of the lower half of the fuselage 1, and 3 is the coarse pulverizer A.
The hoppers 4 and 5 are circular saw-shaped rotary blades installed on the diagonally upper side and diagonally lower side of the lees crushing bag counterfeit A, respectively. The rotary shaft 4a on the upper side and the rotary shaft 5a on the lower side are fixedly supported adjacent to each other by the gutter. 6 is a coarse screen such as porous punching metal or mesh wire mesh,
The sides and bottom sides of the rotary blades 4 and 5 are coated from the lower edge of the hopper 3. Specifically, the eyes of this screen 6 have a diameter of 30 to 5Q in port. 7 is an opening/closing lid that is connected to the front side of the machine 1 directly below the input hopper 3, and 8 is a coarse crusher A.
This is an overflow barrier for the coarsely pulverized material XI provided between the pulverizer B and the fine pulverizer B, and has the function of receiving the coarsely pulverized material XI and the foreign matter YI. The barrier 8 has a bottom slope section that mainly sinks the foreign matter YI directly below the lower rotary blade 5, an inclined slope section that goes diagonally upward mainly for floating and guiding the coarsely pulverized material x1, and the upper side. The inner rear part of the rotary blade 5 is bent and connected to a vertical slope part on which the crushed material X2 mainly floats and overflows, and the rear thereof to a flat plate part for feeding and guiding to the fine crusher B. Reference numeral 9 denotes an impeller-shaped rotary blade disposed in the fine grinding device B, and as shown in FIG. 3, it is fixedly supported on a rotating shaft 9a extending from left to right of the machine body 1 at a constant angle.

Fixed blades 11 are arranged opposite to each other in front and rear of the rotary blade 9, and 11 is a thin screen such as porous punching metal or mesh wire mesh, which covers the bottom side of the rotary blade 9 from the lower surface of the fixed blade 10. is forming.

Specifically, the eyes of this screen 11 have a diameter IW in port. Reference numeral 12 denotes a hopper having a receiving tray function for the finely pulverized material X2 of Styrofoam X, and has a through hole 12 on one side of its bottom.
A is drilled.

Reference numeral 14 denotes a blower that can freely suck and feed, which is attached and fixed to one side of the lower part of the machine body 1, and the suction and feed port 13 and the hopper 1 are connected to each other.
It is connected to the through hole 12a of No. 2, and the finely pulverized material x 2 is sent by air pressure.

15 is a storage tank for 2x finely pulverized materials, and its body 1
5a is covered with a material such as porous punching metal, mesh cloth, or wire mesh so that air can be freely blown out.

Reference numeral 16 denotes a top hopper installed at the top of the storage tank 15, which has an internal barrier 17 standing upright in a V-shaped cross section as shown in FIGS. Sending port 1
8 and a feeding groove 19 are formed.

A feed pipe 21 connects the discharge port 14a of the second river blower 14 and the feed port 18, and 21 is an opening/closing lid provided on one side of the top hopper 16, and is mainly connected to the recess 19a of the feed groove 19 or the outside. This is convenient for removing foreign matter Y2 that settles on the periphery.

A hopper 22 supports the bottom of the storage tank 15 by side, and is supported and fixed to the upper edge of the body 1.

Reference numeral 23 denotes a traversing screw conveyor 23 installed inside the feed pipe 24 at the bottom of the hopper 22, and is rotationally driven by a drive motor M2 supported at its rear end.

Reference numeral S denotes a recycling processing apparatus for pulverized polystyrene foam X2, which supports a pair of disk bodies shown in FIGS. 5 to 8, that is, a fixed disk C and a rotary disk D rotating at high speed, facing each other.

Specifically, the gap between the circumferences of the stationary plate C and the rotary plate D in this opposing state is about 0.03 to 0.5 inches. Reference numeral 25 denotes a bearing cylindrical member on the rotary disk D side having an arm portion 25a having a hemispherical cross section, and the rotary disk D is fixedly attached to the inner end surface of a rotary shaft 25b inserted with iron into the cylindrical member 25.

Reference numeral 26 denotes a flat rotary blade fixedly attached to the outer peripheral surface of the rotary disk D, 25c is a pulley attached and fixed to the outer end of the rotary shaft 25b, and M3 is a drive motor for the rotary disk D supported and fixed to the body 1. A belt 25e is suspended and supported between a pulley 25d fixed to the drive shaft and the pulley 25c.

Reference numeral 27 denotes a supporting part 27a in which the fixed plate C can be freely adjusted forward and backward, and the fixed plate C side is pivoted so that the gate can be freely adjusted, and the rear base 2
An inner cylinder 27c having a feeding function and a lid 27d of the body 25a are fixedly attached to the inner cylinder 7b. Reference numeral 28 is an operation handle for finely adjusting the forward and backward movement of the stationary plate C, and a gear 28b is fixedly supported on the inner end of the rotating shaft 28d.

27e is a sliding ring of the stationary plate C which is inserted into the outer circumferential surface of the inner cylinder 27c; 29 is a screw ring with thread grooves carved on the inner and outer circumferential surfaces of the sliding ring 27e; 29a and lid body 2
The screw groove 29b carved on the inner peripheral surface of 7d and the gear 28b
They are threaded to mesh with each other.

3. The feeding port in the center of the fixed platen C, 31 is a green groove around each of the fixed platen C and the rotary platen D, and the sloped wall surface on the inner circumferential side of the inner platen bodies C and D has a vertical surface and a groove. A mirror-toothed and wide lee groove 31a consisting of a forehead slope is recessed along the forehead slope wall surface, and a narrow and shallow valley is provided on the corresponding flat surface of the outer green part of the crab bodies C and D. A sawtooth narrow groove 31b consisting of a steep slope and a traversing slope is recessed, and the sharp part of the outer part of the set groove 31a and the narrow groove 31b form a line.

32 is a feeding hole for the granulated recycled material X3 drilled at one end of the paulownia part 25a; 33 is a recovery hobber supported and fixed on one side of the machine body 1; the material is fed from the feeding hole 32; Three recycled materials are collected into a bag container (not shown) attached to the take-out hole 33a at the lower end of the hopper 33.

Incidentally, MI is a drive motor for the crushing devices A and B, and 34 is a pulley fixed to the rotating shaft of the motor MI, which is connected to the rotating shaft 9a.
A belt 34a is supported on a rack between a pulley 9b and a pulley 9b fixed to the belt 34a.

Further, a pulley 9c is fixed to the other side of the rotating shaft 9a, and the belt gd is supported by the neck between the pulley 4b and the pulley 4b fixed to the rotating shaft 4a. A spur gear 4c is fixed to the other side of the rotating shaft 4a, and meshes with a spur gear 5b fixed to the rotating shaft 5a. Numeral 35 is a magnet piece attached to a suitable position on the back surface of the overflow barrier 8, and attracts foreign matter YI such as a nail, which is a magnetized body.

0 In order to recycle waste materials such as Styrofoam
(not shown) to transport the Styrofoam X to the hopper 3.
Insert one after another inside.

At this time, large foreign objects such as long nails inserted into the Styrofoam It is advisable to remove as much as possible before immersing yourself in it. Then, the foamed polystyrene
At the same time, foreign substances YI such as pebbles and nail pieces that were overlooked and thrown in during the preliminary treatment for foreign substance removal are also separated and fall to the bottom side of the barrier 8 on the straight A side of the coarse crushing apparatus. If it is a nail piece, it is attracted to the magnet piece 35.

On the other hand, the coarsely crushed lightweight Styrofoam material XI that has been striated and separated floats along the vertical slope of the barrier 8 due to the suction and feeding force of the blower 14 and overflows from the drop port 36 into the fine crusher B. It is sucked and fed inside.

In this way, while the lightweight coarsely pulverized material XI flows over the barrier 8, foreign materials YI such as pebbles and nails are blocked by the barrier 8, thereby effectively removing the foreign materials in the coarse pulverizer A section. The coarsely pulverized material XI fed into the fine pulverizer B is
The fixed blade 10 further finely pulverizes the material, and the fine screen 11 at the bottom divides the finely pulverized material into 2 finely pulverized materials each having a diameter of IQ in size. and is fed to the top hopper 16.

The finely pulverized material X2 fed centrifugally into the top hopper 16 overflows the barrier 17 and flows down into the storage tank 15 from which air can be freely blown. At this time, although sand grains still adhere to the finely pulverized material X2 and are fed by air pressure, they may be scraped off during pressure feeding through the feeding pipe 20, or they may be mixed into the top hopper 16, but they may not be removed from the centrifugal direction. Feeding groove 19 by pneumatic feeding
It settles and accumulates in the recess 19a on the side of the peripheral wall. As a result, the lighter finely pulverized material x2 flows over the top barrier 17 of the storage tank 15, while the foreign material Y2 such as sand grains flows over the barrier 1.
7, more complete foreign matter removal is performed. When a certain amount or more of the finely crushed material x2 is stored in the storage tank 15, the screw conveyor 23 at the bottom of the hopper 22 is operated by the drive motor M2, and the finely crushed material x2 is fed into the reprocessing device S. .

At the same time, by operating the drive motor M3, the styrofoam is recycled. At this time, although the amount of finely pulverized material x 2 in the storage tank 15 increases or decreases, since the body 15a of the storage tank 15 is configured to freely blow out air, the air pressure feeding force by the blower 14 increases or decreases the stored amount. For example, when the storage amount is large, the amount of air blown out from the storage tank 15 is small, and the air is strongly pressed against the storage surface layer of the finely crushed material X2; The amount of air blown out is large, and the air is weakly pressed against the surface layer of the reservoir. As a result, the amount of feed from the hopper 22 is constantly maintained and controlled.
Therefore, the amount fed into the regeneration processing apparatus S can also be made uniform. The finely ground material x 2 that is constantly fed in this way is
The waste is supplied between the stationary platen C of the regeneration processing device S and the rotary feeder D that rotates at high speed.

Then, the centrifugal force accompanying the high-speed rotation of the rotary disk D overcomes the floating force of the lightweight finely pulverized material x2, and presses and compresses the finely pulverized material x2 toward the periphery of the disc bodies C and D. Observing the situation at this time in slow motion, first a strong compressive force acts on the finely crushed material X2 due to the centrifugal force of the rotating disk D rotating at high speed, and this gradually narrows toward the outer periphery. In the process of the finely crushed material X2 being forcibly guided by the small coarse groove 31a and moving to the sharp tip thereof, a phenomenon such as degassing of the individual finely crushed materials x2 occurs, and furthermore, the fixed plate C and the rotary plate is press-fitted into the narrow groove 31b provided at the outermost peripheral edge of D, and both disc bodies C,
In the process of being released from the 0.03 to 0.5 side gap between D, and due to the high speed rotation of rotary disk D, frictional heat is formed in the groove 31d portion of both disk bodies C and D, and the gap Due to the synergistic effect of the compressive force in the part, the finely pulverized material X2, which was originally foamed, is degassed instantaneously, and a moment later, at the moment when it scatters from the narrow groove 31b of the minute gap. , it is not melted but granulated and scattered into the body 25a. This granulated recycled material x 3 is transferred to the rotating blade 2.
6, the sample is fed into the collection hopper 33 through the feed hole 32, and collected into a bag container attached to the outlet 33a.
FIG. 9 shows a second embodiment of the overflow barrier 17, in which the top of the hemispherical fat cover 37 is used as the feeding port 18 to connect the feeding pipe 20, and a saucer-shaped pipe is connected directly below the woven feeding row 8. It is also possible to adopt a configuration in which an overflow barrier 17a is provided.

Further, a blowhole 38 as shown by the imaginary line in FIG. 1 may be formed at the lower end of the feed pipe 20 to serve as an intermediate means for removing foreign matter. In the present invention, one of the disk bodies C and D is embodied as a fixed plate C and the other as a rotating disk D that rotates at high speed, but the pair of disk bodies C and D are supported oppositely so that they can rotate at a relatively high speed. This makes it possible to recycle the Styrofoam X.

Furthermore, in the above device, a means for horizontally transporting the finely crushed material X2 by means of a screw conveyor 23 was provided between the bottom of the hopper 22 and the reprocessing device S, but a feeding pipe 24 directly connected to the reprocessing device S was provided at the bottom of the hopper 22. It is also possible to have a structure that goes through the lotus.

According to the present invention, in the above-described styrofoam recycling equipment, the storage tank for the crushed material to which air is fed is configured so that air can be freely blown out, so that even if the storage amount increases or decreases, the amount fed to the recycling equipment can be maintained on average. can be maintained and controlled.

Therefore, the granulated recycled material does not cause product unevenness, and the quality and processing conditions of the recycled material that is foamed and molded for reuse are further improved, making it useful for resource reuse. can be dealt with. In addition, an overflow barrier for pulverized material is provided at the top of the storage tank, and an overflow barrier for coarsely pulverized material is also provided at the stage of coarse pulverization.
By effectively utilizing the weight difference between the crushed Styrofoam and the foreign matter, separation of the two can be achieved smoothly, which eliminates equipment stoppages and equipment damage caused by foreign matter entering the recycling equipment. Smooth and quick recycling of Styrofoam can be carried out.

Furthermore, from a device perspective, the required components are compactly arranged and supported in one device and can be operated as needed, making the entire device more compact and highly efficient. There are no departmental restrictions. Since the present invention has such an overall device, it is possible to automate the process from crushing Styrofoam to recycling processing, and it can greatly contribute to this type of technical field as a practical dedicated machine.

It brings about various effects such as.

[Brief explanation of the drawing]

Figure 1 is a longitudinal sectional front view showing the entire device, Figure 2 is a side view,
Figure 3 is a plan view of the pulverizer, Figure 7 is a half-sectional view of the top of the storage tank, Figure 5 is an enlarged vertical cross-sectional view of the styrofoam recycling equipment, and Figure 6 is the fixed plates installed opposite each other. and a half-sectional view of the rotary disk, Figures 7a and b are the rotary disk D (Figure a).
Figure 8 is a plan view showing the inside of the fixed platen (Figure b).
FIG. 9 is a partially enlarged perspective view of the state shown in FIG. 9, which shows a modification of the overflow barrier in the upper part of the storage tank. Code list, X... Styrofoam, Y...
・Foreign matter, A: Coarse crusher, B: Fine crusher, C: Fixed plate, D: Rotating plate, S:・・Reproduction processing device, 6, 11・・・・
・Screen, 8, 17... Barrier, 14...
...Blower, 15...Storage tank, 31...
...Peripheral groove. Figure 1 Figure 2 Figure 3 Figure 4 Figure 6 Figure 5 Figure 8 Figure 7 Figure 9

Claims (1)

[Claims] 1. A peripheral groove 31 is formed on the outer periphery of the disk bodies C, D, and the pair of disk bodies C, D are supported facing each other so as to be able to rotate at a relatively high speed, and the inside of the disk bodies C, D is In the styrofoam recycling processing apparatus configured to process and recover the crushed material X2 of styrofoam X supplied to the peripheral groove 31 as a granulated recycled material from the peripheral groove 31, the styrofoam , a coarse pulverizer A, a fine pulverizer B, and a blower 14 are provided, and both the pulverizers A and B are provided.
An overflow barrier 8 for the coarsely pulverized material X1 is provided between the fine pulverizer B
A suction port 13 of a blower 14 that can freely suck and feed is connected to the hopper 12 at the bottom, and a storage tank 15 from which air can be freely blown is provided at the top of the machine body 1, and a feeding port 18 for finely pulverized material X2 is provided at the top of the tank 15. An overflow barrier 17 having
4a through a feed pipe 20, and the hopper 22 at the bottom of the storage tank 15 and the regeneration processing apparatus S are connected to each other by a feeding pipe 20. 2. Claim 1, characterized in that the coarse grinding device A is composed of a pair of rotary blades 4, 5 and a coarse screen 6.
The styrofoam crushing, feeding, storage, and reprocessing equipment described in 2. 3. The styrofoam crushing, feeding, storage, and regeneration processing apparatus according to claim 1, wherein the fine crushing device B is composed of a rotating blade 9, a fixed blade 10, and a fine screen 11. 4. The styrofoam crushing, feeding, storage, and regeneration processing device according to claim 1, wherein the bottom of the barrier 8 on the side of the coarse crushing device A is used as a deposition area for foreign matter Y1. 5. The styrofoam crushing, feeding, storage, and regeneration processing apparatus according to claim 1, wherein the body 1 is movable.