KR101568175B1

KR101568175B1 - Hand Sorting Apparatus in Plastic Recycling Process

Info

Publication number: KR101568175B1
Application number: KR1020150096295A
Authority: KR
Inventors: 박종문
Original assignee: (주)에스엠테크
Priority date: 2014-11-13
Filing date: 2015-07-07
Publication date: 2015-11-12

Abstract

The present invention relates to a sorting apparatus for sorting PP or PE in a process of recycling waste plastic, comprising a disk-shaped bottom for accommodating waste plastic, and a waste plastics separating from the bottom and out A support table for supporting the work table at a height at which the work table can be operated by an operator and a center connected to a center of the bottom of the work table, And a residual water receptacle for collecting the residues remaining in the bottom part after being connected to the bottom of the residual receptacle, and a blocking wall having an opening and closing member that can be opened and closed by a worker at a part connected to the bottom part of the residual receptacle During the sorting operation, the opening / closing member is kept closed and the sorting is completed. And I can be stored after the operator opens the opening and closing member to push the debris into the debris receptacle.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic sorting apparatus for recycling plastic waste,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to recycling of plastics, and more particularly, to a screening apparatus in which an operator selects PP or PE from a process of recycling waste plastics.

Plastic is a light, strong, and easy-to-process material that is currently used as a necessary material in various fields. However, environmental problems caused by used and discarded plastics have been caused, and recycling technologies of plastics have been developed to solve them.

A variety of techniques for recycling PP or PE from plastic waste contained in household garbage and industrial garbage collected at home or factory have been developed, including the technique disclosed in Japanese Patent Laid-Open No. 10-2005-0081193. According to these technologies, the collected plastics are sorted by material, washed, crushed, and extruded, finally produced as injection pellets and recycled for production of various products.

Specifically, there are a process of sorting the collected waste plastics based on types and colors, a process of crushing and crushing the selected waste plastics to a size capable of being recycled, and a washing process of removing impurities and foreign substances from the waste plastics A drying process, and a process of extruding waste plastic composed of pure PP or PE and finally producing pellets. The screening process, the pulverizing process, the washing process, and the drying process are performed in various stages. Ultimately, pure PP or PE, which is finally removed from the impurities, are selected, and they are subjected to an extrusion process at a high temperature to be recycled as pellets of a certain size and length .

Among these processes, the process of selecting waste plastics is a process of separating and selecting only specific materials, especially hard or soft plastics. In this process, only plastics of necessary materials are selected in various ways. Without this sorting process, When recycled in a mixed state, it is impossible to obtain a plastic having a desired property. The sorting of plastics can be classified into automatic sorting by mechanical devices such as sensors and optical devices, or sorting by sorting by human eyes. Since automatic sorting involves high purchase and manufacturing costs of the devices, And a method of branching is appropriately used in combination.

An object of the present invention is to provide a sorting apparatus configured to enable a plurality of workers to efficiently work in the process of identifying and sorting plastics by the naked eye of a worker.

Open Patent No. 10-2005-0081193 (published Aug. 18, 2005)

It is an object of the present invention to provide a sorting apparatus which can effectively sort waste plastic by type and color in a plastic recycling process and forms a residue receptacle at the center of the sorting apparatus so that residuals mixed with waste plastic can be easily separated . Other objects of the present invention can be achieved by the detailed description of the present invention described with reference to the accompanying drawings.

In order to achieve the above object, the apparatus for sorting a plastic recycling process according to the present invention comprises a disk-shaped bottom for accommodating waste plastic, and a blocking wall for preventing the waste plastic from falling off the bottom and outward A work table, a support table for supporting the work table at a height at which the worker can work from the ground, and a guide plate formed at the center of the bottom of the work table, Further comprising a blocking wall having an opening and closing member that can be opened and closed by a worker at a portion connected to the bottom portion of the residue receptacle including a residue receptacle for collecting the remnant remaining in the receptacle, After the opening and closing member is held in a closed state and the sorting is completed, Woman can be pushed to the residue to open the opening and closing member to the residue container.

Preferably, the bottom portion is configured to be lower in height from the outer periphery toward the center, and the work table includes a rotating device configured to rotate the bottom portion at a constant speed during the sorting process, And a vibration generating device for causing vibration of the bottom portion during operation of the apparatus.

The apparatus for sorting a plastic recycling process according to another embodiment of the present invention includes a bottom 101 in the form of a disk for receiving waste plastic and distributing the waste plastic to an operator by rotating the waste plastic from the bottom 101 A support table 200 for supporting the work table 100 at a height at which a worker can work the work table 100 from the ground, Shaped distribution member 107 fixed to the center of the bottom part 101 and having a predetermined height and a rotary device 400 configured to rotate the part 101 at a constant speed, Further comprising a blocking member (108) having a structure hinged to the inside of the blocking wall (103) and the other end being fastened to the end of the distribution member (107), the rotating device (400) A first gear 404 fixed to the lower end of the main shaft 405 and fixed to the lower end of the main shaft 405, a second gear 404 connected to the first gear 404, 402), and a driving motor (412) connected to the rotating shaft of the second gear (402) and imparting power thereto.

The rotating device 400 preferably includes: a cruciform support frame 502 for supporting a bottom surface of the bottom portion 101; a wheel 501 mounted on a lower surface of the support frame 502; And a rotary rail 505 having a groove 515 for receiving the rotary shaft 505.

According to the water sorting apparatus of the plastic recycling process of the present invention, workers can be selected in a state where the opening and closing member is closed while the residual water receiving can including the opening and closing member formed at the center of the bottom surface, It is possible to open the opening and closing member and collect the residue such as sludge accumulated on the floor surface to the residual water receptacle effectively at the center portion, thereby eliminating the trouble that the operator has to clean the floor surface.

1 is a schematic perspective view of an apparatus for sorting a plastic recycling process according to an embodiment of the present invention.
Fig. 2 shows a state in which the opening and closing member of Fig. 1 is opened.
FIG. 3 is a cross-sectional view of a bottom portion of the apparatus for sorting plastics in a plastic recycling process according to an embodiment of the present invention.
4 is a schematic perspective view of an apparatus for sorting a plastic recycling process according to another embodiment of the present invention.
5 is an exploded perspective view of the main part of FIG.
FIG. 6 is a partial structural view showing only the bottom part and the rotating device of FIG.
Figure 7 shows a component showing the means for supporting the bottom for stable rotation of the bottom and bottom of Figure 4;
8 is a view showing the operation of a blocking member provided at the bottom of Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and should be construed in accordance with the technical meanings and concepts of the present invention.

FIG. 1 is a schematic perspective view of an apparatus for sorting a plastic recycling process according to an embodiment of the present invention, and FIG. 2 shows a state in which the opening and closing member of FIG. 1 is opened. 1 and 2, the apparatus for sorting the plastic recycling process of the present invention comprises a work table (not shown as a configuration including 101 and 103 but hereinafter denoted as 100), a support table 200, And includes a receptacle (300).

The work table 100 includes a bottom 101 in the form of a disk for accommodating waste plastic and a blocking wall 103 for preventing the waste plastic from falling off the bottom 101 and falling outside the work table 100, Respectively. The work table 100 is formed in a circular shape and workers are arranged at regular intervals to sort the waste plastics mixed with various kinds of plastics put into the bottom part 101 according to the type of sight or tactile sense. The selected waste plastics are classified according to their types and are collected so that they can be transported to the next recycling process and processed.

The waste plastics mixed with plastics of various materials to be inputted into the workbench 100 may be configured to be continuously fed onto the bottom portion 101 by being conveyed by a conveyor or the like in a previous process. It is possible to temporarily stop the operation of the conveyor. The waste plastics introduced into the bottom part 101 can be first evenly spread over the entire area of the bottom part 101 by the operator and can be visually divided and put into a sorting box (not shown) arranged on the side or back of the operator .

The support table 200 supports the work table 100 at a height at which the operator can work from the ground. It is preferable that the height of the work table 100 is such that a general worker can bend his waist and extend his hand to the inner central portion of the bottom portion 101 of the work table 100, It is preferable to form four legs for stable support and to fix the lower ends of the legs to each other.

The residue receptacle 300 is connected to the center of the bottom part 101 of the work table 100 and is connected to the remaining part of the bottom part 101 after the completion of sorting of the waste plastic by the operator Collect water. As an essential feature of the present invention, one embodiment of the present invention includes a residue receptacle 300 for collecting unsorted residues mixed with waste plastic through a hollow to form a hollow in the center of the bottom 101, Respectively. That is, the opening 301 of the residue receptacle 300 is configured to be connected to the hollow of the bottom portion 101.

The apparatus may further include a blocking wall 310 having an opening and closing member 320 that can be opened and closed by a worker at a portion of the residue receptacle 300 connected to the bottom portion 101, After the member 320 is maintained in the closed state and the sorting is completed, the operator can open the opening / closing member 320 to push the residue into the residue receptacle 300. Preferably, the blocking wall 310 is formed in the same shape as the bottom portion 101 so that the distance between the blocking wall 103 and the blocking wall 310 along the periphery of the work bench 100 is made equal , The operator can effectively select the waste plastic placed in the bottom portion 101 therebetween.

1 shows a state in which the opening and closing member 320 is closed and constitutes a part of the blocking wall 310. In this state, the sorting operation of the waste plastic can be performed, And the opening and closing member 320 is opened in a state in which residuals left unchecked on the work table 100 remain.

In one preferred embodiment, the coupling between the blocking wall 310 and the opening and closing member 320 is configured to be foldable in a hinge manner. However, the present invention is not limited thereto, Closing structure that can partially or wholly open and allow the residue of waste plastic remaining on the bottom portion 101 to be delivered to the residual receptacle 300. [ As shown in the figure, when the opening and closing member 320 is formed in the form of a hinged door to the blocking wall 310, it can be easily opened and closed by a worker, which is a very convenient structure. It is also possible to add a locking device (not shown) for fixing the blocking wall 310 and the opening / closing member 320 when the opening / closing member 320 constitutes a part of the blocking wall 310 in a closed state . It would be desirable for the locking device to be configured so that the operator can easily tighten and release it by hand.

Preferably, as shown in FIG. 3, the bottom portion 101 may be configured to be lowered in height from the outer periphery toward the center. That is, the bottom surface of the bottom portion 101 may be formed to have a predetermined angle (?) With respect to the horizontal plane. Therefore, the shape of the bottom surface can be a funnel shape in which the degree of inclination as a whole is gentle. By configuring the bottom surface in this way, it is possible to make the residue that has not been selected while the waste plastics placed on the workbench 100 move in the direction of the center of the bottom surface 101, thereby removing the residue When it is necessary, the opening and closing member 320 can be opened to allow the residue to be immediately taken out of the residual receptacle 300 and collected.

Also, as a preferred embodiment, the workbench may include a rotating device (not shown) configured to rotate the bottom portion at a constant speed during the sorting process. One or more of the waste plastics placed on the workbench 100 may be sorted, for example, when used as an apparatus for sorting out two kinds of mixed plastics, It is possible to arrange two kinds of plastics by sorting only the kind of plastics assigned to each of them by disposing two workers on the workbench 100. However, In this case, if the kind of plastic to be selected by itself is present on the opposite side of the work table 100, there may be a problem that the distance is too long to extend to the hand. To solve this problem, By configuring the water container 300 to rotate at a constant speed, the plastic that has remained far away can be rotated and picked up by itself to be easily selected. The rotating device may be configured to rotate the work table 100 itself. However, it is preferable that only the bottom portion 101 is rotated to prevent the worker from coming into close contact with the work table 100 and moving together. In order to rotate the bottom portion 101, a first gear is provided at the lower end of the bottom portion 101, a second gear is engaged with the first gear, and the second gear is rotated by the drive motor, So that the bottom portion 101 fixedly connected to the bottom portion 101 can be rotated.

Further, as a more preferred embodiment, the work table may further include a vibration generating device (not shown) for causing vibration of the bottom portion 101 during operation of the rotating device. If the width of the bottom portion 101, that is, the distance between the blocking wall 103 and the blocking wall 310 is narrow, there is no problem. However, in the case of a large screening apparatus having such a large width, There is also a case where the worker pushes and pushes the receptacle 300 to the receptacle 300. At this time, when the vibration generating device is included in the lower end of the bottom part 101 and the vibration generating device is operated periodically or when necessary to vibrate the bottom part 101, 101 to be automatically collected in the residue receptacle 300. Therefore, the labor of the operator can be reduced, and the productivity can be improved.

FIG. 4 is an exploded perspective view of the main part of FIG. 4, FIG. 6 is a cross-sectional view of the bottom part and the rotating device of FIG. 4 separated from the main part of the plastic recycling process according to another embodiment of the present invention Fig. 4 to 6, the apparatus for sorting a plastic recycling process according to another embodiment of the present invention includes the above-described work table 100, a support table 200, and a rotation device 400, The configuration of the residual receptacle 300 according to one embodiment is omitted. It further comprises a distribution member 107 and a blocking member 108.

The distribution member 107 is a bar-shaped member fixed at the center of the bottom portion 101 and having a constant height. Therefore, when the waste plastic is dropped into the center of the bottom part 101, the waste plastic is rotated by the rotation of the bottom part 101. Since the rotation speed of the bottom part 101 is as low as about 10 to 20 times per minute, The effect of dispersing the lungs to the edge of the bottom portion 101 is very low. Therefore, separate means are required to push the waste plastics accumulated in the central portion of the bottom portion 101 to the edge of the bottom portion 101 which can be reached by the operator's hand. In this embodiment, the distribution member 107 is kept stationary despite the rotation of the bottom portion 101, so that the waste plastic is prevented from rotating so that the waste plastic is spread toward the edge of the distribution member 107 . The waste plastic which has moved to the edge by the distributing member 107 and is out of the length of the distributing member 107 is rotated along with the bottom portion 101 along the magnetic field position without being affected by the distributing member 107, To be distributed to all workers disposed around the work station.

Further, the height of the dispensing member 107 is formed to be somewhat low, and when the dropped waste plastic is formed high, the waste plastic in a high position can be configured to pass over the dispensing member 107. Therefore, by limiting the amount of waste plastic that can be blocked by the distribution member 107, the distribution effect can be maximized. The waste plastics beyond the distribution member 107 can be distributed by the distribution member 107 again after one rotation together with the bottom portion 101.

The dispensing member 107 can be fixed to the center of the bottom portion 101 by the center fixing portion 117. The center fixing portion 117 can be removably attached to the bottom portion 117 by the user And it is also possible to adjust the installation angle. It is also possible to provide elastic means between the center fixing portion 117 and the bottom portion 101 so that the distribution member 107 is fixed so as to have a certain elasticity with respect to the bottom portion 101. [ In this case, the distribution member 107 receives an external force by the waste plastic, and a constant vibration may be generated. Such vibration can more effectively achieve the distribution of the waste plastic. Alternatively, the distribution member 107 itself may be formed of a material having a certain elasticity to achieve a similar purpose.

The blocking member 108 is hingedly connected at one end to the inside of the blocking wall 103 and at the other end to the distribution member 107 ) At the distal end thereof. The blocking member 108 is for blocking the waste plastics moving to the edge by the distributing member 107 from rotating along the bottom portion 101 when the temporary emphasis of the work is required. It is necessary to fix the distal end portion of the blocking member 108 to the distal end portion of the distribution member 107 and then fix the distal end portion of the blocking member 108 in that state. There is a method of fixing the blocking member 108 and the distribution member 107 by the fastening means Or may be provided with means capable of being connected to the distribution member 107 on the blocking member 108 itself. 8 shows a state in which the blocking member 108 is connected to the distribution member 107 and a state in which the blocking member 108 is released, respectively.

The rotating device 400 is configured to rotate the bottom portion 101 at a constant speed during the sorting process as in the above-described embodiment. In this embodiment, the rotating device 400 includes a main shaft 405, 1 gear 404, a second gear 402, and a drive motor 412.

Referring to FIG. 6, the main shaft 405 is fixedly connected vertically downward from the center of the bottom portion 101.

The first gear 404 and the second gear 402 are formed at the lower end of the main shaft 405. The rotation shaft of the first gear 404 is fixedly connected to the lower end of the main shaft 405 And the second gear 402 is connected to the first gear 404 to transmit the rotational force.

The driving motor 412 is connected to the rotation shaft of the second gear 402 to transmit power to the gear. Accordingly, the gear ratio of the first gear and the second gear can be adjusted so that the rotational force of the driving motor 412 can be appropriately transmitted to the bottom portion 101. The drive motor 412, the gears 402 and 404, and the like may all be disposed inside the support 200.

Figure 7 shows a component showing the means for supporting the bottom for stable rotation of the bottom and bottom of Figure 4; Referring to FIG. 7, as a preferred embodiment, the rotating device 400 may further include a support frame 502 and a rotating rail 505.

The support frame 502 is preferably a frame for supporting the lower surface of the bottom portion 101 and is preferably formed in a cross shape to support the bottom portion 101 having a relatively wide circular plate structure. It is necessary to securely fix the lower surface of the bottom portion 101 of the support frame 502 by the connecting means. On the lower surface of the support frame 502, a plurality of wheels 501 capable of rotating the support frame 502 with respect to the rotation rail 505 are provided. Four wheels can be attached since the support frame 502 is configured in a cross shape and configured to be rotatable about a central axis.

The rotation rail 505 is formed with a groove 515 for receiving the wheel 501 installed on the lower surface of the support frame 502 so that the support frame 502 can be supported at the lower end have. 5, the rotating rail 505 needs to be fixedly mounted on the upper surface of the supporting table 200 and the covering wall 103 of the working table 100 is also required to be fixed to the supporting table 200 have.

5, a spindle fixing member 414 for vertically fixing the spindle 405 of the rotating device 400 is provided at the center of the support base 200 by a spindle fixing base 413, The main shaft 405 can be vertically and stably installed in the center hole 415 of the fixing member 414. [

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Various modifications can be made by those skilled in the art. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It will not.

101: bottom part 103: clog wall
200: support 300: residue receptacle
310: blocking wall 320: opening / closing member
107: distribution member 108: blocking member
400: Rotating device 402: Second gear
404: first gear 405:
412: drive motor 501: wheel
502: support frame 505: rotary rail
515: Home

Claims

A work table having a bottom in the form of a disk for receiving the waste plastic and a blocking wall for preventing the waste plastic from falling out of the bottom and outward;
A support table for supporting the work table at a height at which the worker can work from the ground; And
A residue receptacle formed at the center of the bottom of the workbench for collecting residues remaining in the bottom after completion of sorting of the waste plastic by the operator;
/ RTI >
Further comprising a blocking wall having an opening / closing member that can be opened and closed by a worker at a portion connected to the bottom of the residue receptacle, wherein the opening / closing member is kept closed during the sorting operation, An operator can open the opening and closing member to push the residue into the residue receptacle,
The bottom portion is configured to be lower in height from the outer periphery toward the center,
Wherein the work table includes a rotating device configured to rotate the bottom portion at a constant speed during a sorting process,
Wherein the work table further comprises a vibration generating device for causing vibration of the bottom part during operation of the rotating device.

delete

A bottom plate 101 in the form of a disk for housing the waste plastic and distributing it to the worker by rotation, and a work table 103 having a covering wall 103 for preventing the waste plastic from falling out from the bottom 101 and falling outwardly (100);
A support table 200 for supporting the work table 100 at a height at which the operator can work from the ground; And
A rotating device 400 configured to rotate the bottom part 101 at a constant speed during a sorting process;
Lt; / RTI >
Shaped distribution member 107 fixed at a central portion of the bottom portion 101 and having a predetermined height and one end hinged to the inside of the blocking wall 103 and the other end connected to the distal end of the distribution member 107 Further comprising a blocking member (108) having a structure that can be fastened,
The rotating device 400 includes:
A main shaft 405 fixed vertically downward from the center of the bottom portion 101;
A first gear 404 having a rotating shaft fixedly connected to a lower end of the main shaft 405;
A second gear 402 connected to the first gear 404; And
And a driving motor (412) connected to the rotating shaft of the second gear (402) and applying power to the rotating shaft of the second gear (402).

The method of claim 3,
The rotating device 400 includes:
A cross-shaped support frame 502 for supporting a bottom surface of the bottom portion 101; And
A rotation rail 505 having grooves 515 for receiving the wheels 501 installed on the lower surface of the support frame 502;
Further comprising the step of: