KR20200060200A - A device in which the PET particle is washed while moving sequentially according to the specific gravity - Google Patents

Abstract

The present invention relates to an apparatus for washing PET particles by successively moving the same in accordance with specific gravity, which is to put PET particles in a heated water tank, and wash the PET particles by soaking impurities in water put on a surface of the PET particles. The apparatus comprises: a water tank (100) filled with washing water (3); a large number of sectional panels (200) which divide the inside of the water tank (100) to allow an input area (S1), one or more middle areas (S2) and discharge area (S3) to be continuous; a plurality of connection passages (300) which are formed by penetrating each of the large number of sectional panels (200), with a stepwise-increasing height; an agitator (400) which is vertically installed in each area (S) of the water tank (100) divided by the sectional panels (200), and generates an upward water flow and a rotary water flow; and a heating apparatus (500) for heating the washing water (3) in the water tank (100). The present invention is to provide an apparatus for washing PET particles by successively moving the same in accordance with specific gravity, which can actively move the PET particles with a high specific gravity, and maintain the formation of upward flow and agitation effects.

Description

A device in which the PET particle is washed while moving sequentially according to the specific gravity}

The present invention relates to a sequential mobile PET pulverization washing device according to specific gravity, and more specifically, a sequential mobile PET according to specific gravity for cleaning by blowing impurities into the surface of the PET pulverized by injecting the PET pulverized into the heated water tank. It relates to a crushing apparatus.

PET bottles are made of light and strong properties and are made of materials harmless to the human body, so they are frequently used as containers for drinks such as water and juice, and the usage thereof continues to increase. However, the used PET bottle is classified as an environmental pollutant because it does not decompose well in its natural state, and efforts have been made to minimize environmental pollution through repeated recycling.

A color separation process to separate colors after the collected PET bottles are introduced, a size suitable for recycling processing, for example, a crushing process to crush a chip of about 10 cm in diameter, and to separate fragments composed of various materials into groups of the same material After the separation process and a washing process for removing impurities such as foreign substances attached to the surface of the fragment, a pulverized PET bottle that can be finally used for recycling is obtained.

Among them, with respect to the washing apparatus used in the washing process, the applicant has been registered and patented by registering patent No. 10-1941462 ("sequential mobile PET pulverized washing apparatus for radiating compartments").

Conventional "PET pulverized product washing device", the water tank 100; It extends in the radial direction from the center of the water tank 100, the input area S1 connected to the input port 302, the discharge area S4 connected to the discharge port, and one or more intermediate areas between the input area and the discharge area ( S2, the radial partition panel 200 for partitioning into S3); includes, PET pulverized through holes (T1, T2) formed on the radial partition panel 200 between the input region, the intermediate region, and the discharge region, It was characterized by being configured to be washed while sequentially moving through T3).

In the conventional "PET pulverization washing device", the PET pulverization was delayed and moved while remaining sufficiently for a certain period of time in the washing process, thereby improving the washing quality of the PET pulverization.

However, in the conventional "PET pulverization washing device", the washing quality is relatively low because the PET pulverization of low specific gravity, which is relatively easy to clean, and the PET pulverization of high specific gravity, which are not easy to clean, are washed without distinction. There was a falling issue.

In addition, in the conventional "PET pulverized product washing device", since the heights of the through holes T1, T2, and T3 are set uniformly high, high specific gravity PET pulverized material is deposited on the bottom surface of each area, and then the next area. The phenomenon that could not be crossed frequently occurred, and the formation of the rising water flow and the stirring effect were halved due to severe vortices in the angled corner space of each region.

Republic of Korea Registered Patent Publication No. 10-1941462 (January 24, 2019 registration notice, name of invention: Radial compartment sequential mobile PET pulverization washing device)

Therefore, the problem to be solved by the present invention is to solve such a conventional problem, and the PET pulverized material can be washed while being sequentially delayed depending on the specific gravity, and the high specific gravity PET pulverized material can be smoothly moved. In addition, it is intended to provide a sequential mobile PET pulverization washing device according to the specific gravity of which the formation of the rising water flow and the stirring effect are not halved.

In order to achieve the above object, the sequential mobile PET pulverization washing apparatus according to the specific gravity of the present invention includes a water tank 100 in which washing water 3 is filled; A plurality of partition panels 200 partitioning the interior of the water tank 100 such that the input region S1, the at least one intermediate region S2, and the discharge region S3 are continuous; A plurality of connection passages 300 which are formed through the plurality of partition panels 200, but whose height is increased stepwise; An agitator 400 installed vertically in each region S of the water tank 100 partitioned by the partition panel 200 to generate a rising water flow and a rotating water flow; And a heating device 500 for warming the washing water 3 of the water tank 100.

In the sequential mobile PET pulverization washing apparatus according to the specific gravity according to the present invention, the stirrer 400 is a first stirrer 410 installed in the input region S1 and a first stirrer 410 installed in the intermediate region S2. 2 is divided into a stirrer 420 and a third stirrer 430 installed in the discharge region S3, and the connection passage 300 is a first between the input region S1 and the intermediate region S2. It is divided into a first connection passageway 310 formed at a height and a second connection passageway 320 formed at a second height higher than the first height between the intermediate area S2 and the discharge area S3. , The first stirrer 410 is driven with a first output such that the high specific gravity crushed material sinking to the bottom of the input area S1 can ride over the first connection passage 310 and pass, The second stirrer 420 has a second output higher than the first output so that the crushed material of the high specific gravity settled at the bottom of the intermediate region S2 can ride over the second connection passage 320. Can be driven.

In the sequential mobile PET pulverization washing apparatus according to the specific gravity according to the present invention, each area (S) forms a square space, and the water tank (100) so that the corners of the corners of each area (S) are covered with a chamfer. ) May be further included.

In the sequential mobile PET pulverization washing device according to the specific gravity according to the present invention, the side surface and the bottom surface of the water tank 100, and the plurality of partition panels 200, the hollow plates are integrally combined to communicate with each other and communicate with each other. The interior space is defined as a storage space (A) in which the heat medium oil (5) is stored, and the storage space (A) may form a structure surrounding the side and bottom surfaces of each region (S).

According to the sequential mobile PET pulverization washing device according to the specific gravity of the present invention, regardless of specific gravity, the washing path and the residence time increase while each sequential movement of each area of the water tank is increased, thereby maintaining the effect of improving the existing washing quality. In addition to being achievable, among PET pulverized products, pulverized products of low specific gravity flow irregularly up and down by ascending water flow, and then are first moved to the next area by rotating water flow, and pulverized products of high specific gravity do not have the effect of rising water flow. By sinking to the bottom while receiving relatively less, and then moving to the next area by the rotating water flow, it is possible to obtain an effect of cleaning the PET powder of high specific gravity, which is not easy to clean, more cleanly.

Particularly, according to the present invention, the output of the stirrer is applied differently according to the height of each connection passage, and the minimum output is applied such that the crushed material of high specific gravity can travel over the connection passage, so that the PET crushed material of high specific gravity is next. It is possible to prevent the phenomenon of not being able to go into the area and at the same time obtain an effect of minimizing power consumption.

In addition, according to the present invention, a plurality of chamber plates are installed in each region of the water tank so that corner portions are obscured in a chamfered shape, thereby preventing formation of a rising water flow and half agitation effect due to vortex.

1 is a cross-sectional view schematically showing a sequential mobile PET pulverization washing apparatus according to specific gravity according to an embodiment of the present invention.
Figure 2 is a view for explaining the transfer screw included in the sequential mobile PET pulverization washing apparatus of Figure 1;
FIG. 3 is a plan view of the sequential movable PET pulverization washing apparatus of FIG. 1 as viewed from above.
Figure 4 is a plan view showing a modification of the sequential mobile PET pulverization washing apparatus of Figure 1;
5A and 5B are process diagrams sequentially showing a process in which the PET pulverized is washed in the sequential mobile PET pulverized washing apparatus of FIG. 1.

Hereinafter, exemplary embodiments of a sequential mobile PET pulverization washing apparatus according to specific gravity according to the present invention will be described in detail with reference to the accompanying drawings. When it is determined that the description of the known technology in connection with the present invention may obscure the subject matter of the present invention, the detailed description of the known technology will be omitted.

1 is a cross-sectional view schematically showing a sequential mobile PET pulverization washing apparatus according to specific gravity according to an embodiment of the present invention, and FIG. 2 is a view for explaining a transfer screw included in the sequential mobile PET pulverization washing apparatus of FIG. 1 3 is a plan view of the sequential mobile PET pulverization washing apparatus of FIG. 1 as viewed from above, and FIG. 4 is a plan view showing a modification of the sequential mobile PET pulverization washing apparatus of FIG. 1.

Referring to Figure 1, the sequential mobile PET pulverization washing device according to the specific gravity according to an embodiment of the present invention to put the PET pulverized in the heated water tank to blow the impurities on the surface of the PET pulverized to the specific gravity for washing As a sequential mobile PET pulverized washing device according to the present invention, it is configured to include a water tank 100, a plurality of partition panels 200, a plurality of connection passages 300, an agitator 400, and a heating device 500.

The water tank 100 is a housing-shaped member filled with the washing water 3. In this embodiment, the water tank 100 is manufactured in the form of a rectangular box as a whole, and is configured such that the partitioned space therein is 2 × 2 parallel. In FIG. 1, the water tank 100 is illustrated in a 1 × 4 series, but this is for understanding the technology.

The plurality of partition panels 200 are plate materials that partition the interior of the water tank 100 such that the input region S1, the at least one intermediate region S2, and the discharge region S3 are continuous.

In this embodiment, the intermediate region S2 is divided into two regions, which are divided into a leading intermediate region S2 'adjacent to the input region S1 and a trailing intermediate region S2' 'adjacent to the discharge region S3. .

A total of four sections of the partition panel 200 are prepared. The partition panel 200 is installed between the first partition panel 201, the leading intermediate region S2 ', and the trailing intermediate region S2' ', which are installed between the input region S1 and the preceding intermediate region S2'. The second partition panel 202, the third intermediate panel 203, which is installed between the trailing intermediate region S2 '' and the discharge region S3, and the discharge region S3 and the input region S1. It is divided into a fourth partition panel 204.

Each area S of the water tank 100 forms a square space, and PET pulverized materials having different specific gravity (m) are input or delivered.

The PET pulverized material (m) generally has a specific gravity of 1.3 or higher than water, and the diameter of the chip is different for each PET pulverized material (m), and the specific gravity of the pulverized material having a specific gravity of 2 or more and the specific gravity of 1 to 3 to 2 are low. The specific gravity pulverized product is in a mixed state.

In the present invention, the PET pulverized material (m) can be roughly classified into a high specific gravity pulverized material and a low specific gravity pulverized product according to specific gravity, and is further subdivided to sequentially sequential first specific gravity crushed material (m1) and second specific specific gravity crushing. Water (m2), a third specific gravity pulverized material (m3), and a fourth specific gravity pulverized material (m4). The first specific gravity crushed material (m1) is the lightest, and the fourth specific gravity crushed material (m4) is the heaviest.

The PET pulverized material (m) is fed into the input area (S1) on a conveyor, and passes through the intermediate area (S2), through the outlet (D) formed on the bottom surface of the discharge area (S3) as shown in FIG. After being discharged to, it is transferred to the next process by the transfer screw 30.

As illustrated in FIG. 1, the plurality of connection passages 300 are passages formed through each of the partition panels 200 except for the fourth partition panel 204, but the height thereof is increased stepwise.

The connection passage 300 includes a first connection passage 310 formed at a first height in the first partition panel 201 between the input area S1 and the intermediate area S2, the intermediate area S2 and the discharge area It may be divided into a second connecting passage 320 formed at a second height higher than the first height in the third partition panel 203 between (S3). In the second partition panel 202 between the intermediate regions S2, an intermediate connecting passage 315 is formed to come between the first height and the second height.

In addition to the connecting passage 300, the outlet 250 is formed at a third height higher than the second connecting passage 320 in the fourth partition panel 204 in the discharge area S3. The height of the outlet 250 is preferably formed to be equivalent to the height of the water surface of the water tank 100.

Among various types of waste plastic pulverized materials, PET-based pulverized materials, which have a relatively high specific gravity, settle to the bottom and are discharged to the outside through the outlet (D) formed on the bottom surface of the discharge area (S3). , PE-based pulverized material is floating to the water surface and is discharged to the outside through the outlet 250.

The stirrer 400 is vertically installed in each region S of the water tank 100 partitioned by the partition panel 200 to generate a rising water flow and a rotating water flow.

The stirrer 400 has a stirring action to force the PET pulverized material (m) to repeat the rise and fall for a certain period of time, and a flow action to force the PET pulverized material (m) to move to the next region through the connection passage (300). do.

When each region S of the water tank 100 is configured in a square shape as in the present embodiment, as shown in FIG. 3, vortices that inhibit the flow of the rising water and the rotating water at the corners of the corners of each area S (v) is generated in large quantities. In order to minimize this phenomenon, it is preferable that a plurality of chamber plates 600 are installed so that the corner portions of each region S are covered with a chamfer.

As shown in FIG. 1, the agitator 400 is installed in the first agitator 410 installed in the input region S1, the second agitator 420 installed in the intermediate region S2, and the discharge region S3. It is divided into a third stirrer 430. The second stirrer 420 is composed of a plurality of agitators installed in the preceding intermediate region S2 'and agitators installed in the trailing intermediate region S2' '.

It is sufficient if each stirrer is driven with a power sufficient to allow the crushed material having a high specific gravity to sink to the bottom of the connection passage 300.

Here, since the heights of the connection passages 300 are different from each other, among the stirrers 400, the first stirrer 410 is the first connection in which the high specific gravity crushed material sinking to the bottom of the input region S1 has the lowest height. It is sufficient if it is driven with a first output that is sufficient to traverse the passage 310.

The second stirrer 420 should be driven with a second output higher than the first output so that the high specific gravity crushed material sinking to the bottom of the intermediate region S2 can ride over the relatively high second connection passage 320. .

The third stirrer 430 may be driven with the lowest output power so that the pulverized material can be discharged. Another reason why the third stirrer 430 should be rotated at a relatively lowest speed is that various types of waste plastics pulverized in the discharge region S3 in which the third stirrer 430 is disposed are precipitated according to the specific gravity difference. This is because it must be floating, so separation according to specific gravity should be smooth.

As described above, according to the present invention, the output of the stirrer is applied differently according to the height of each connection passage, and the minimum output is applied such that the crushed material of high specific gravity can ride over the connection passage 300, thereby crushing the PET of high specific gravity. The phenomenon that water cannot pass to the next area is prevented, and at the same time, an effect of minimizing power consumption can be obtained.

The stirrer 400 is provided with a rotating motor, a stirring shaft, and a plurality of rotating blades 410, based on any one specific partition panel 200, the PET pulverized product (m) is installed on the left side of the first stirring area The stirring wing 410 is installed at the same height as the connection passage 300 formed in the specific partition panel 200, and the stirring wing 410 on the right side installed in the area where the stirred PET pulverized material (m) is delivered is It is preferable that the connection passage 300 formed in the specific partition panel 200 is installed at a height not equal to that of the connection passage 300.

If, first, the stirring blade 410 installed in the area to be stirred is installed at a height not equal to the connection passage 300 formed in the specific partition panel 200, the outflow of the PET pulverized material (m) is not smooth, When the stirring blade 410 installed in the area where the agitated PET pulverized material (m) is delivered is installed at the same height as the connection passage 300 formed in the specific partition panel 200, the inflow of the PET pulverized material (m) This will not be smooth.

The heating device 500 is configured to warm the washing water 3 of the water tank 100. Specifically, it is a heater.

In this embodiment, the side surface and the bottom surface of the water tank 100 and the plurality of partition panels 200 are integrally coupled with a hollow plate to communicate with each other, and the communicating inner space is a storage space (A) in which the heat medium oil 5 is stored. ).

The heat medium oil (5) stored in the storage space (A) receives heat from the heating device (500) to maintain a constant temperature, and the storage space (A) surrounds the side and bottom surfaces of each area (S). While forming, the washing water 3 filled in each region S receives heat from the side and bottom surfaces of each region S in contact with the storage space A.

Therefore, while the heat transfer area to the washing water 3 is maximized, an effect of heating the washing water 3 more quickly can be obtained.

On the other hand, as shown in Figure 4, a total of 10 partition panels are prepared, of which, all of the horizontal paths 21 are continuously connected horizontally to form a connecting passage, and are divided based on the horizontal panel 21 By forming the connecting passages alternately on one of the two vertical panels 22, the PET pulverized material may be configured to move in a zigzag path.

From now on, the process of washing the PET pulverized through the sequential mobile PET pulverized washing device according to the specific gravity according to the present invention will be described. 5A and 5B are process diagrams sequentially showing a process in which the PET pulverized is washed in the sequentially movable PET pulverized washing apparatus of FIG. 1.

First, as shown in (a) of Figure 5a, the output of the stirrer installed in each area (S1, S2 ', S2' ') is set to be increased step by step according to the height of the connection passage, the last discharge area (S3) The output of the stirrer installed in is set to the lowest.

In one example, the output of the stirrer is set to 300rpm, 400rpm, 500rpm, 200rpm. This output is a minimum output enough to allow the PET pulverized material, and more specifically, the PET pulverized material having the highest specific gravity among the PET pulverized materials to pass through the connecting passage.

In this state, the first specific gravity pulverized material (m1), the second specific gravity pulverized material (m2), the third specific gravity pulverized material (m3), and the fourth specific gravity pulverized material (m4) classified according to specific gravity are input areas (S1). Is put in at the same time.

Each pulverized product is gradually heated while being immersed in the washing water, and at the same time, irregular impurities flow up and down under the influence of the rising water and the rotating water, and impurities attached to the surface are separated one by one.

Of each crushed material, the fourth specific gravity crushed material (m4) having the highest specific gravity is precipitated and rolled to the bottom of the input region (S1) while being relatively less affected by the water flow, and the remaining first specific gravity crushed material (m1) , The second specific gravity pulverized product m2 and the third specific gravity pulverized material m3 are first moved toward the preceding intermediate region S2 'through the first connection passage 310 while being relatively affected by the water flow.

The first specific gravity pulverized material m1, the second specific gravity pulverized material m2 and the third specific gravity pulverized material m3 moved to the preceding intermediate region S2 'are elevated as shown in FIG. 5A (b). It flows up and down likewise under the influence of water flow and rotation water flow.

Among them, the third specific gravity pulverized material (m3) having a high specific gravity precipitates and rolls the bottom, while the first specific gravity crushed material (m1) and the second specific specific gravity crushed material (m2) are greatly affected by the water flow. The intermediate connecting passage 315 first moves to the trailing intermediate region S2 ″.

The fourth specific gravity pulverized product m4 staying in the input region S1 is later transferred to the preceding intermediate region S2 '.

As shown in FIG. 5A (c), the first specific gravity pulverized material m1 and the second specific gravity pulverized material m2 moved to the trailing intermediate region S2 '' are affected by the rising water flow and the rotating water flow. Likewise, it flows up and down.

Among them, the second specific gravity crushed material (m2) having a large specific gravity is precipitated to roll the bottom, and the first specific gravity crushed material (m1) having a small specific gravity is greatly affected by the water flow, and through the second connection passage (320). It moves to the last discharge area S3 first.

The third specific gravity pulverized object m3 and the fourth specific gravity pulverized material m4 that remained in the preceding intermediate region S2 'are subsequently passed to the succeeding intermediate region S2'.

The first specific gravity pulverized product m1 that has reached the discharge area S3 first is discharged to the outside through an outlet formed on the bottom surface of the discharge area S3, as shown in FIG. 5B (d).

Then, as shown in (e) of FIG. 5B, the second specific gravity pulverized material m2 is discharged to the outside while passing into the discharge region S3, and as shown in FIG. 5B (f), the second 3 Specific gravity pulverized product m3 is discharged next, and as shown in FIG. 5B (g), the fourth specific gravity pulverized product m4 having the highest specific gravity cut is finally discharged.

As described above, the present invention can achieve the existing washing quality improvement effect as it is, as the washing path and the residence time increase as each sintered product sequentially moves each region of the water tank regardless of specific gravity.

In addition, in the present invention, among the PET pulverized products, the pulverized products having a low specific gravity are irregularly flowed up and down by the ascending water flow, and then first moved to the next region by the rotating water flow, and the pulverized products of the high specific gravity are relatively affected by the rising water flow. By sinking to the bottom while receiving less, and then moving to the next area by the rotating water flow, it is possible to obtain an effect of cleaning the PET powder of high specific gravity, which is not easy to clean, more cleanly.

The scope of the present invention is not limited to the above-described embodiments and modifications, but may be implemented in various forms of embodiments within the scope of the appended claims. Any person skilled in the art to which the present invention pertains without departing from the gist of the present invention as claimed in the claims is deemed to be within the scope of the claims of the present invention to a wide range that can be modified.

100: water tank
200: multiple compartment panels
300: multiple connection passages
400: agitator
500: heating device

Claims (4)

A water tank 100 in which washing water 3 is filled;
A plurality of partition panels 200 partitioning the interior of the water tank 100 such that the input region S1, the at least one intermediate region S2, and the discharge region S3 are continuous;
A plurality of connection passages 300 which are formed through the plurality of partition panels 200, but whose height is increased stepwise;
An agitator 400 installed vertically in each region S of the water tank 100 partitioned by the partition panel 200 to generate a rising water flow and a rotating water flow; And
Sequential movable PET pulverized washing device according to specific gravity, characterized in that it comprises a; heating device 500 for warming the washing water (3) of the water tank (100). According to claim 1,
The stirrer 400 includes a first stirrer 410 installed in the input area S1, a second stirrer 420 installed in the intermediate area S2, and a third installed in the discharge area S3. It is divided into a stirrer 430,
The connection passage 300 includes a first connection passage 310 formed at a first height between the input area S1 and the intermediate area S2, and the intermediate area S2 and the discharge area S3. ) Is divided into a second connecting passage 320 formed at a second height higher than the first height,
The first stirrer 410 is driven with a first output such that the crushed material having a high specific gravity settled at the bottom of the input region S1 can ride over the first connection passage 310 and pass over.
The second stirrer 420 has a second output higher than the first output so that the high specific gravity crushed material settled on the bottom of the intermediate region S2 can ride over the second connection passage 320. Sequential mobile PET crushing washing device according to the specific gravity being driven. According to claim 1,
Each of the regions S forms a square space,
A sequential mobile PET pulverization washing device according to specific gravity further comprising; a plurality of chamber plates 600 installed in the water tank 100 so that the corner portions of each region S are covered with a chamfer . According to claim 1,
The side surface and the bottom surface of the water tank 100, and the plurality of partition panels 200, hollow plates are integrally coupled to communicate with each other, and the communicating inner space is a storage space (A) in which the heat medium oil 5 is stored. Is defined as,
The storage space (A) is a sequential mobile PET pulverization washing device according to specific gravity, characterized in that the structure surrounding the side and bottom surfaces of each region (S).

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