JP3649149B2 - Bottle-shaped plastic sorting apparatus and sorting method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bottle plastic sorting method and sorting apparatus suitable for sorting bottle plastic from plastic waste, particularly plastic waste containing bottle plastic (hereinafter referred to as mixed waste). .
[0002]
[Prior art]
Plastics used as containers or packaging containers need to be selected according to recycling applications. For example, it is selection of a bottle-shaped object and a non-bottle-shaped object (for example, an indeterminate shape), or a PET bottle and a non-PET bottle (for example, a substance containing chlorine). For this reason,
(1) When plastic waste is generated (same as when it is disposed) or when mixed waste is collected, the waste that has been sorted and discharged in the sorted state is sorted and collected. To be brought into a recycling facility, or
{Circle around (2)} The mixed waste is carried into a recycling facility and the bottles are manually removed from the mixed waste.
[0003]
[Problems to be solved by the invention]
However, the prior art has the following problems. That is,
(1) If sorting and collection are not thorough, it may cause trouble at the recycling facility. For example, the bottles are caught in the non-bottles slot, and the subsequent non-bottles are stopped.
(2) Also, it may cause quality defects of recycled products.
(3) In the case of manual work, individual differences occur in sorting accuracy, and the same problems as in the above (1) and (2) occur.
(4) In addition, there is a limit to the response to fluctuation or increase in the processing amount, which causes an increase in sorting cost and an upper limit on sorting capability.
[0004]
The present invention has been made to solve the above problems, and an object of the present invention is to provide a bottle-shaped plastic sorting method and sorting apparatus that can continuously sort accurately without relying on human hands. To do.
[0005]
[Means for Solving the Problems]
The bottle-shaped plastic sorting apparatus of the present invention for solving the above-described problems is as follows.
[1] A bottle-shaped plastic sorting device having a sorting table inclined in the longitudinal direction and the width direction, and a vibration means for vibrating the sorting table in the width direction,
A receiving portion for receiving waste plastic including bottle-shaped plastic, the sorting table being disposed on a side having a long slope in the longitudinal direction;
A bottle-shaped plastic discharge portion for discharging the selected bottle-shaped plastic, which is disposed on the low-side inclination side in the longitudinal direction and on the low-side inclination side;
It has a non-bottle-shaped plastic discharge part which discharges waste plastics other than the selected bottle-shaped plastic, which is arranged on the lower side in the longitudinal direction and on the higher side in the width direction. Is.
[0006]
Further, the bottle-shaped plastic sorting method of the present invention is as follows.
[2] In the sorting apparatus according to [1],
A step of throwing waste plastic including bottle-shaped plastic into the sorting table;
Recovering the bottle-shaped plastic;
The step of collecting the waste plastic excluding the bottle-shaped plastic is continued substantially in parallel.
[0007]
[3] In the sorting method according to [2], a step of throwing a waste plastic including a bottle-shaped plastic into the sorting table, a step of collecting the bottle-shaped plastic, and a step of collecting the non-bottle-shaped plastic It is characterized by being parallel.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
[Embodiment 1]
FIG. 1 is a perspective view schematically illustrating a sorting situation in the bottle-shaped plastic sorting method according to the present invention. In FIG. 1, in a vibration sorting apparatus including a sorting table 1 inclined in the width direction (Y direction in the drawing) and the longitudinal direction (X direction in the drawing), the sorting table 1 is substantially in the width direction (substantially Y direction). Vibrate.
[0009]
Then, the bottle-shaped plastic to be sorted is placed in a range (hereinafter referred to as the upper part in the longitudinal direction) near the end of the sorting table 1 in the direction with the high inclination in the longitudinal direction (X direction) (hereinafter referred to as the upper direction). A receiving portion for containing waste plastic (hereinafter referred to as mixed waste) is disposed, and a loading portion 2 is installed corresponding to the receiving portion for the waste plastic.
[0010]
On the other hand, in the range (hereinafter referred to as the lower portion of the longitudinal direction) near the end of the sorting table 1 in the direction of the low inclination (hereinafter referred to as the lower direction) in the longitudinal direction (X direction), A bottle-shaped plastic discharge portion is disposed in a range (hereinafter referred to as a lower portion in the width direction) near the end of the low-inclined side (hereinafter referred to as the lower portion), and the bottle-shaped plastic corresponding to the bottle-shaped plastic discharge portion. A collection unit 3 is installed.
[0011]
Further, in the lower part of the sorting table 1 in the longitudinal direction, it is not bottled in a range (hereinafter referred to as the upper part in the width direction) near the end of the side having a high inclination in the width direction (Y direction) (hereinafter referred to as the upper part). A plastic discharge part is disposed, and a non-bottle plastic recovery part 4 is installed corresponding to the non-bottle plastic discharge part.
[0012]
Further, below the rear surface of the sorting table 1, vibration means 5 that vibrates the sorting table 1 in the width direction is installed.
[0013]
Therefore, when the mixed waste is put into the sorting table 1 from the equal loading section 2, the inner bottle-shaped plastic of the mixed waste has a small coefficient of friction on the surface, and therefore the sorting table 1 is vibrating in the Y direction. The conveying force is small, and the sorting table 1 slides down or rolls down in the Y direction without being conveyed in the Y direction.
[0014]
On the other hand, non-bottled plastics such as trays and cups (hereinafter referred to as non-bottled plastics) have a large surface friction coefficient and are difficult to roll. Will climb.
[0015]
Further, since the sorting table 1 is also inclined in the X direction, it is transported downward in the X direction along with the movement in the Y direction, and eventually the bottle-shaped plastic is transferred to the bottle-shaped plastic recovery unit 3. The non-bottle plastic reaches the non-bottle plastic collecting part 4.
[0016]
The charging of the mixed waste and the discharging of the bottle-shaped plastic and the discharging of the non-bottle-shaped plastic may be performed separately or concurrently. That is, both batch processing and continuous processing are possible.
[0017]
【The invention's effect】
According to the bottle-shaped plastic sorting method and sorting apparatus of the present invention described above, sorting can be performed without using a conventional vibration sorter, so that sorting accuracy is stable and the amount of processing is reduced. A remarkable effect is obtained that it is possible to easily cope with fluctuation or increase.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically illustrating a sorting situation in a bottle-shaped plastic sorting method according to the present invention.
[Explanation of symbols]
1 Sorting table 2 Input unit 3 Bottle-shaped plastic recovery unit 4 Non-bottled plastic recovery unit

Claims (3)

A sorting device for bottle-shaped plastic having a sorting table inclined in the longitudinal direction and the width direction, and a vibration means for vibrating the sorting table in the width direction,
A receiving portion for receiving waste plastic including bottle-shaped plastic, the sorting table being disposed on a side having a long slope in the longitudinal direction;
A bottle-shaped plastic discharge portion for discharging the selected bottle-shaped plastic, which is disposed on the low-side inclination side in the longitudinal direction and on the low-side inclination side;
A bottle having a non-bottle-shaped plastic discharge portion for discharging waste plastic other than the selected bottle-shaped plastic, which is disposed on the low-side inclination in the longitudinal direction and on the high-side in the width direction. Plastic sorter. In the bottle-shaped plastic sorting device according to claim 1,
Throwing waste plastic including bottle-shaped plastic into the sorting table;
A step of sorting the thrown plastic into the bottle-shaped plastic and the non-bottle-shaped plastic by vibrating the sorting table;
Collecting the selected bottle-shaped plastic in the bottle-shaped plastic recovery section;
A method for sorting bottle-shaped plastics, comprising the step of collecting the sorted non-bottle-shaped plastics in the non-bottle-shaped plastics recovery unit. The step of putting waste plastic including bottle-shaped plastic into the sorting table, the step of recovering the bottle-shaped plastic, and the step of recovering the non-bottle-shaped plastic are parallel to each other. Bottled plastic sorting method.

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