KR102192506B1 - Gum filtration system - Google Patents

Abstract

The present invention relates to a gum filtration system for improving recyclability of waste plastic. An objective of the present invention is to increase a production amount of beneficial oil capable of obtaining pyrolysis oil of waste plastic by separating gum from the pyrolysis oil of waste plastic and to minimize pollution due to the gum and to improve processing efficiency by reducing a production amount of the gum generated from the pyrolysis oil. The gum filtration system for improving recyclability of waste plastic comprises: a gum separator including a separation tank formed therein with a storing space, a first inlet formed at one side of the separation tank to receive pyrolysis oil and solvent, a first outlet formed at an opposite side of the separation tank to exhaust diluted pyrolysis oil generated by stirring action, and a nozzle provided at a lower portion of the separation tank to spray the pyrolysis oil and the solvent, to form the diluted pyrolysis oil and stirring solvent by separating gum and rubber materials adhering to a carbon ring of the pyrolysis oil by performing a stirring action by collision between the pyrolysis oil and the solvent sprayed from the nozzle; a filter provided at one side of the gum separator to acquire filtered pyrolysis oil by receiving and filtering the diluted pyrolysis oil from the gum separator; an organic acid storing part to receive and store the stirring solvent when the diluted pyrolysis oil and the stirring solvent are formed by the stirring action of the gum separator; and a pump to provide a pumping force for sequentially moving the pyrolysis oil (including diluted pyrolysis oil, filtered diluted pyrolysis oil) to the gum separator, the filter, and the organic acid storing part.

Description

Gum filtering system to improve the recyclability of waste plastic {GUM FILTRATION SYSTEM}

The present invention relates to a gum filtering system for improving the recyclability of waste plastics, and more particularly, by separating gums from pyrolysis oil obtained through waste plastics, which can be obtained from pyrolysis oil of the waste plastics. By increasing the production of beneficial oils and reducing the amount of gums generated from pyrolysis oil, gum filtering to improve the recyclability of waste plastics to minimize environmental pollution and improve treatment efficiency It's about the system.

In general, plastic is a material that can be molded by heating, pressing, or a combination thereof, or a resin product using such material. The plastic refers to synthetic resin, and in the final product, it has a lot of molecular weight and a large amount of chemical substances, that is, gum, in a solid form, but it is easy to mold as it has fluidity during molding, so that various types of products can be produced. In addition, as it is manufactured in a polymer form by polymerizing various substances using petroleum as the main raw material, the use and amount of use increase as a polymer compound having various functions and characteristics can be produced by polymerizing substances that can have properties desired by users. Are doing.

In addition, plastic is a type of petroleum compound that uses petroleum as its main raw material, and is difficult to decompose as it is produced in a polymer form, so it can be used for a long time due to its excellent corrosion resistance. It is used in various ways, not only for daily necessities but also for various industrial products.

However, the waste plastics disposed of after use of the plastics have the characteristics of plastics, which is difficult to be buried, and when incinerated, various harmful gases are discharged to pollute the atmospheric environment. There is a problem. In addition, as the reserves of oil including petroleum, which is a fuel used to produce plastics, are reduced, the price of oil increases, and the need for reuse of oil existing inside waste plastics increases as resources are depleted.

Recently, an oil reduction device for waste plastics has been developed that improves resource recycling by reducing and recovering the oil contained in the waste plastics.

For example, the recycled oil processing system using waste plastics of Korean Patent No. 10-659244 includes a first molecular reactor 110 for melting waste plastics, and the first molecular reactor 110 as shown in FIG. ) To remove foreign substances contained in the recycled oil gas discharged from the first molecular filter 120 and the temperature of the recycled oil gas that has passed through the first molecular filter 120 to lower the pressure of the recycled oil gas A cooling decompression furnace 130 for cooling, a first cooler 140 for cooling and liquefying the regenerated oil gas that has not been liquefied in the cooling decompression furnace 130, and the cooling decompression furnace 130 and the first cooler 140 ) To store the regenerated oil liquefied in the first cooler 140, and to supply the cooling water from the cooling decompression furnace 130, the first regenerated oil storage tank 150 into which the regenerated oil gas not liquefied in the first cooler is introduced. A first cooling water pump 160, a first cooling water cooler 170 for lowering the temperature of the cooling water discharged from the cooling decompression path 130, and a gas purifier connected to the first recycled oil storage tank 150 ( 180) is configured, and the gas purified by the gas purifier 180 is transferred to the firebox of the primary reactor through a gas pipe and is used as fuel for heating the primary reactor.

However, in the conventional recycled oil system using waste plastic, there is a problem in that the recycled oil, that is, the gum generated in the pyrolysis oil processing, causes a clogging phenomenon in the distillation tube, etc., thereby providing a cause of failure of the processing system.

In particular, since the separation system for gum or rubber is not separately configured in the pyrolysis oil, there is a problem that the recycling of waste plastic is relatively low due to the decrease in the production of beneficial oil that can be obtained through the pyrolysis oil. have.

Korean Patent Publication No. 10-950280 (announced on March 31, 2010) Korean Patent Publication No. 10-1349981 (announced on January 16, 2014) Korean Patent Publication No. 10-1890415 (announcement on Aug 21, 2018)

As a proposal to solve the above problems, an object of the present invention is to increase the production of beneficial oil that can be obtained from the pyrolysis oil of the waste plastic by separating the gum quality from the pyrolysis oil obtained through the waste plastic. In addition, it is to provide a gum filtering system for improving the recyclability of waste plastics, which minimizes environmental pollution and improves treatment efficiency by reducing the amount of gum generated from pyrolysis oil.

In order to achieve the above object, the present invention is composed of a separation tank in which a storage space is formed and one side of the separation tank to allow the pyrolysis oil and solvent to enter the first inlet and the other side, and is formed by agitation. Including a first outlet for discharging the cracked oil and a nozzle configured at a lower side of the separation tank to eject the pyrolysis oil and the solvent, the pyrolysis oil and the solvent sprayed through the nozzle collide with each other to perform a stirring action. A gum separating unit configured to form a diluted decomposition oil and a stirring solvent as gums and rubbers adhered to the carbon rings of the pyrolysis oil are eliminated according to the results; A filtration unit configured on one side of the gum separation unit to receive and filter the diluted cracked oil formed through the gum separation unit to obtain high-purity filtered cracked oil; When the dilute decomposition oil and the stirring solvent are formed by the stirring action of the gum separation unit, an organic acid storage unit for receiving and storing the stirring solvent; And a pump that provides a pumping force to sequentially transfer pyrolysis oil (including dilute cracking oil and filtration cracking oil) to the gum separation unit, the filtration unit, and the organic acid storage unit.

In the present invention, in the gum separation unit, the pyrolysis oil and solvent which are located above the inside of the stirring tank and are ejected through the nozzle first collide with the inner wall of the stirring tank, and the pyrolysis oil and the solvent reflected are collided with each other. It is preferable to include; a collision support plate for supporting the pyrolysis oil and the solvent to improve the stirring efficiency by the shock waves caused by the first and second collisions by inducing to be.

In the present invention, it is preferable that the nozzle is an injector nozzle that induces the pyrolysis oil and the solvent to be ejected while having a jet stream to improve the stirring efficiency.

In the first invention, the solvent is monoethanolamine 40 to 60% by weight; 10 to 30% by weight of dimethyl sulfoxide; And it is preferably composed of 20 to 40% by weight of water.

In the present invention, the filtering unit, the filtering tank; A second inlet configured at one side of the upper portion of the filtration tank to allow the diluted decomposition oil provided through the gum separation unit to be injected; A second outlet configured at the lower end of the filtration tank to discharge the filtrated and decomposed oil formed as the diluted and decomposed oil is filtered; A filter net configured below the inside of the filter tank; And a filtration layer configured above the filtration network to substantially filter the diluted and decomposed oil; The filtration layer, a first filtration layer which is sequentially stacked upward and downward, and is formed to exhibit a filtration performance of 10 mm or more; A second filtration layer formed to exert filtration performance in the range of 0.4 to 2 mm for the first filtration and decomposition oil that has passed through the first filtration layer; And a third filtration layer that allows the second filtration and cracked oil that has passed through the second filtration layer to exhibit filtration performance in the range of 1 to 10 µm so that the final filtration and cracked oil is collected through the second outlet. .

In the present invention, the third filtration layer comprises 40 to 60% by weight of calcium carbonate; 20 to 40% by weight of loess; 10 to 20% by weight of charcoal; And 10 to 20% by weight of petroleum pitch; it is preferably composed of.

According to the present invention, by separating the gum quality from the pyrolysis oil obtained through the waste plastic, while increasing the production of beneficial oil that can be obtained from the pyrolysis oil of the waste plastic, the amount of gum quality generated from the pyrolysis oil is reduced. According to the reduction, there is an effect of minimizing environmental pollution and improving treatment efficiency due to the above-described gum quality.

1 is a schematic configuration diagram of a conventional recycled oil processing system using waste plastic.
2 is a schematic configuration diagram of a gum filtering system according to the present invention.
Figure 3 is an enlarged view of the gum separation unit according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The gum filtering system of the present invention includes a gum separation unit 10, a filtration unit 20, an organic acid storage unit 30, and a pump 40, as shown in FIG. 2.

The gum separation unit 10 performs a function of separating gum, rubber, etc. from pyrolysis oil.

As shown in FIG. 3, the gum separation unit 10 includes a separation tank 110, a first inlet 120, a first outlet 130, an injector nozzle 140, and a discharge pipe 150. , A circulation pump 160, a branch valve 170, and a collision support plate 180.

The separation tank 110 contains a certain amount of pyrolysis oil and solvent therein, and sticky gums, rubbery and fine moisture, etc. (hereinafter referred to as'gum quality') adhered to the carbon rings of the pyrolysis oil by stirring the pyrolysis oil and the solvent. (Collectively referred to as) performs the function of providing a separate space.

The first inlet 120 is configured on one side of the separation tank 110, that is, on one side of the top or the top, and performs a function of introducing pyrolysis oil and a solvent into the separation tank 110.

In this case, it is preferable to mix the pyrolysis oil and the solvent in a ratio of 50% by weight: 50% by weight or 60% by weight: 40% by weight.

In addition, the solvent is composed of 40 to 60 parts by weight of monoethanolamine, 10 to 30 parts by weight of dimethyl sulfoxide, and 20 to 40 parts by weight of water.

The first outlet 130 is configured on the other side of the separation tank 110, that is, in a direction opposite to the first inlet 120, and filters pyrolysis oil in which gum quality, rubber quality, etc. is decomposed through the separation tank 110. It performs the function of transferring to the unit 20. In this case, the first outlet 130 is configured on the other lower side of the separation tank 110.

The injector nozzle 140 is configured on one side of the separation tank 110, and a shock wave caused by the collision of the pyrolysis oil and the solvent in the separation tank 110 by ejecting the pyrolysis oil and the solvent at high speed while having pressure. As a result, it performs a function to improve the separation efficiency of gums through effective stirring.

In addition, the injector nozzle 140 is configured at a lower side of the separation tank 110, and is configured to have a certain angle inclination, so that the ejected pyrolysis oil and the solvent collide with the inner wall of the separation tank 110. Performs the function of In this case, the injector nozzle 140 is configured to be ejected from the bottom of the separation tank 110 upward.

The discharge pipe 150 is configured at the lower end of the separation tank 110, that is, at the center of the lower end, so that the pyrolysis oil and solvent accommodated in the separation tank 110 are provided to the injector nozzle 140, or a detection unit ( 10) After the stirring action is completed, it performs a function of forming a pipe so that the generated gum, rubber, and moisture are transferred to the outside, for example, the organic acid storage unit 30.

The circulation pump 160 is configured between the injector nozzle 140 and the discharge pipe 150 to provide a pumping force to perform a circulation action of continuously providing pyrolysis oil and solvent discharged through the discharge pipe 150. Functions.

The branch valve 170 is connected to one end of the discharge pipe 150 to provide continuous supply of pyrolysis oil and solvent to the injector nozzle 140 in the process of stirring the pyrolysis oil and solvent through the separation tank 110. When the agitation action through the separation tank 110 is completed, a selective control function is performed so that the generated gum can be transferred to the organic acid storage unit 30.

The collision support plate 180 is mounted inside the stirring tank 110, and the pyrolysis oil and solvent ejected through the injector nozzle 140 collide with the inner wall of the separation tank 110 and are reflected in the first collision and the first collision. By inducing a second collision between the pyrolysis oil and the solvent to be generated, the stirring efficiency for the pyrolysis oil and the solvent is improved. In this case, the collision support plate 180 protrudes at a certain height from the inner wall of the separation tank 110 at a certain angle, as shown in FIG. 3, so that the pyrolysis oil and the solvent in the second collision are removed from the separation tank 110. It is formed in a shape that induces it to be collected underneath. For example, the collision support plate 180 has a triangular shape.

The filtering unit 20 performs a function of facilitating obtaining high-purity light oil by filtering the dilute decomposition oil in which the pyrolysis oil has been subjected to gum separation through the gum separation unit 10.

It is preferable that the filtration unit 20 is configured in plural in order to improve the filtration efficiency for the diluted and cracked oil. In addition, the filtering unit 20 may have the same or similar structure or configuration, even if it is configured in plural. Of course, the filtering unit 20 is not limited thereto, and the filtering unit 20 may be adopted as long as it is a structure or configuration capable of obtaining high-purity diluted cracked oil, that is, light oil, by improving the filtration rate for the diluted cracked oil.

The filtration unit 20 includes a filtration tank 210, a second inlet 220, a second outlet 230, a filtration net 240, a filtration layer 250, and a scattering plate 260. .

The filtration tank 210 is manufactured in a low pressure tank method having an accommodation space therein.

The second inlet 220 is configured on one side of the filtration tank 210, that is, on one side of the upper side, and receives the dilute decomposition oil having been subjected to gum separation through the gum separation unit 10, and provides it to the inside of the filtration tank 210. It performs the function to enter into.

The second outlet 230 is configured at the other side of the filtration tank 210, that is, at the bottom center, and has a function of transferring the high-purity filtration and decomposition oil obtained by sequentially passing through the filtration layer 250 to the other side. Perform. In this case, the filtrated and cracked oil conveyed through the second outlet 230 of the filtration unit 20 configured at the final position is provided to a waste plastic recycling system and is connected so that high-purity light oil or the like can be obtained.

The filtration net 240 is configured under the filtration tank 210 to support the filtration layer 250 stably stacked on the upper side, and the filtration decomposition oil passing through the filtration layer 250 is lowered. It performs a function of supporting so that it can be stably collected on the side of the second outlet 220 located at.

The filtration layer 250 is configured above the filtration net 240 and performs a function of substantially filtering the diluted decomposition oil introduced through the second inlet 210.

The filtration layer 250 adopts a lamination structure in which the first to third filtration layers 252, 254, and 256 are sequentially stacked from the top to the bottom.

The first filtration layer 252 performs a function of exerting a filtration performance of 10 mm or more. In this case, the first filtration layer 252 is made of gravel or the like.

The second filtration layer 254 performs a function of exerting a filtration performance of between 0.4 and 2 mm for the first filtration and decomposition oil that has passed through the first filtration layer 252. In this case, the second filtration layer 254 is preferably made of white soil. Of course, the present invention is not limited thereto, and the second filtration layer 254 may be replaced with sand having a particle size smaller than that of gravel.

The third filtration layer 256 performs a function of exerting a filtration performance between 1 and 10 μm for the secondary filtration and decomposition oil that has passed through the second filtration layer 254. In this case, it is preferable that the third filtration layer 256 is formed in a powder form.

In addition, the third filtration layer 256 is composed of 40 to 60% by weight of calcium carbonate, 20 to 40% by weight of loess, 10 to 20% by weight of charcoal, and 10 to 20% by weight of petroleum pitch. Of course, the present invention is not limited thereto, and any composition of the third filtration layer 256 may be used as long as it has a high-density filtration performance.

The composition of the third filtration layer 256 is composed of a powder or a particle shape of a predetermined size to achieve a dense constitutive relationship.

Accordingly, the high-purity filtered and cracked oil that has passed through the third filtration process through the third filtration layer 256 is transferred to the waste plastic recycling system through the second outlet 230. Let the efficiency improve.

The scattering plate 260 is configured inside the filtration tank 210 so that when the diluted decomposition oil input through the first inlet 220 enters the filtration layer 250, it does not enter any one place, and scatters it. It performs the function of improving the filtration efficiency by dispersing it so that it can be obtained. In this case, the scattering plate 260 is formed at an angle so that the vertex is positioned below the second inlet 220 to induce the dilute and decomposed oil to scatter. Of course, the scattering plate 260 is not limited thereto, and any structure or configuration may be used as long as the scattering plate 260 induces the dilute decomposition oil to be stably dispersed and evenly disperses and enters the filtration layer 250.

When the organic acid storage unit 30 is separated into a dilute decomposition oil and a stirring solvent, that is, gum quality, rubber quality, and fine moisture, by the stirring action of the pyrolysis oil and the solvent in the gum separation unit 10, the stirring solvent is separated from the separation tank 110. It performs a function of receiving and storing it through the discharge pipe 150.

In addition, the organic acid storage unit 30 transfers the stirred solvent stored therein to a waste plastic recycling system to improve the degree of recyclability, or to be treated through a separate treatment system.

The pump 40 is configured between the gum separation unit 10, the filtration unit 20, and the organic acid storage unit 40 or in each section to provide a pumping force that stably transfers pyrolysis oil to each component. Functions. For example, the pump 40 is between the first outlet 130 of the gum separation unit 10 and the second inlet 220 of the filtration unit 20, between the first outlet 130 and the organic acid storage unit 30 , It is configured in various locations between the second outlet 230 of the filter unit 20 and the waste plastic recycling system, or between a plurality of filter units, etc., such as pyrolysis oil (including dilution decomposition oil, filtration decomposition oil) and stirring solvent. So that it can be transported stably.

A schematic operational relationship of the gum filtering system for improving the recyclability of the waste plastic configured as described above is as follows.

First, pyrolysis oil is provided and stored through the first inlet 120 configured at one side of the separation tank 110 of the gum separation unit 10. In this case, when the addition of pyrolysis oil is completed, a solvent is introduced into the first inlet 120. In addition, it is preferable that the pyrolysis oil and solvent that are input and stored in the separation tank 110 are stored in an amount of 40 to 70% by volume based on the internal volume of the separation tank 110.

And, when the input to the separation tank 110 is completed, the pyrolysis oil and the solvent are supplied to the injector nozzle 140 configured at the lower side of the separation tank 110 by the pumping force of the circulation pump 160, The supplied pyrolysis oil and solvent form a jet stream from the injector nozzle 140 and are ejected and first collide with the inner wall of the separation tank 110, and a collision support plate formed on the upper part of the stirring tank 110 by reflection It has a circulation loop that is resupplied to the injector nozzle 140 through the discharge pipe 150 as it falls downward after the second collision by 180. In this case, the branch valve 170 configured below the discharge pipe 150 is kept open so that the pyrolysis oil and the solvent can be supplied to the circulation pump 160.

In addition, the stirring action by the first and second collisions by the separation tank 110 is performed for 30 to 120 minutes.

The pyrolysis oil and solvent in which the first and second collisions occur are repeatedly split and recombined with the pyrolysis oil and solvents by the shock wave caused by the collision, so that the gums and rubbers attached to the carbon rings of the pyrolysis oil are removed by the solvent. By doing so, dilute decomposition oil and stirring solvent are produced.

In addition, when the stirring action in the gum separation unit 10 is completed, the diluted cracked oil is transferred to the filtering unit 20 through the first outlet 130 of the stirring tank 110, and the transferred diluted cracked oil is filtered. As it is filtered by the unit 20, high purity filtrated oil is produced.

Subsequently, the filtrated and decomposed oil is provided to a waste plastic recycling system through the second outlet 230 configured below the filtration tank 210 of the filtration unit 20 so that high purity light oil and the like can be obtained.

On the other hand, the stirring solvent generated through the gum separation unit 10 is stored in the organic acid storage unit 30 through the discharge pipe 150 and the branch valve 170 configured below the stirring tank 110, thereby processing is performed. . In this case, the branch valve 170 blocks the opening of the circulation pump 160 in the discharge pipe 150 of the stirring tank 110, and opens between the discharge pipe 150 and the organic acid storage unit 30, The stirring solvent can be stably stored in the organic acid storage unit 30.

What has been described above is only one embodiment for implementing a gum filtering system for improving recyclability of waste plastic, and the present invention is not limited to the above embodiment. Those of ordinary skill in the art to which the present invention pertains will appreciate that various modifications can be implemented without departing from the gist of the present invention.

10: gum separation unit 110: separation tank
120: first inlet 130: first outlet
140: injector nozzle 150: discharge pipe
160: circulation pump 170: branch valve
180: collision support plate 20: filtering unit
210: filtration tank 220: second inlet
230: second outlet 240: filter net
250: filtration layer 260: scattering plate
30: organic acid storage unit 40: pump

Claims (6)

A separation tank with a storage space and a first inlet configured on one side of the separation tank to allow the pyrolysis oil and solvent to enter, and a first outlet configured on the other side to discharge the dilution cracked oil generated by agitation and the separation tank Including a nozzle configured at a lower side of the pyrolysis oil and a solvent to eject the pyrolysis oil and the solvent, the gum bonded to the carbon ring of the pyrolysis oil and A gum separation unit to form a diluted decomposition oil and a stirring solvent as the rubber material is removed;
A filtration unit configured at one side of the gum separation unit to receive and filter the diluted cracked oil formed through the gum separation unit to obtain a high purity filtered cracked oil;
When the dilute decomposition oil and the stirring solvent are formed by the stirring action of the gum separation unit, an organic acid storage unit for receiving and storing the stirring solvent; And
A pump providing a pumping force to sequentially transfer pyrolysis oil (including dilution cracking oil and filtration cracking oil) to the gum separation unit, the filtering unit, and the organic acid storage unit;
Gum filtering system for improving the recyclability of waste plastic, comprising a.
The method of claim 1, wherein the gum separation unit,
Located above the inside of the stirring tank, the pyrolysis oil and the solvent ejected through the nozzle first collide with the inner wall of the stirring tank, and the reflected pyrolysis oil and the solvent are induced to collide secondarily. A collision support plate for supporting the stirring efficiency to be improved by the shock waves caused by the first and second collisions;
Gum filtering system for improving the recyclability of the waste plastic comprising a.
The method of claim 1, wherein the nozzle,
An injector nozzle for inducing the pyrolysis oil and the solvent to be ejected while having a jet stream to improve agitation efficiency;
A gum filtering system for improving recyclability for waste plastics, characterized in that.
The method of claim 1, wherein the solvent is
40 to 60% by weight of monoethanolamine;
10 to 30% by weight of dimethyl sulfoxide; And
20-40% by weight of water;
Gum filtration system for improving the recyclability of waste plastic, characterized in that composed of.
The method of claim 1, wherein the filtering unit,
A filtration tank;
A second inlet configured on one side of the upper portion of the filtration tank to allow the diluted decomposition oil provided through the gum separation unit to be injected;
A second outlet configured at a lower end of the filtration tank to discharge the filtrated and decomposed oil formed as the diluted and decomposed oil is filtered;
A filter net configured below the inside of the filter tank; And
And a filtration layer configured above the filtration network to substantially filter the diluted and decomposed oil;
The filtration layer is sequentially stacked upward and downward,
A first filtration layer formed to exhibit a filtration performance of 10 mm or more;
A second filtration layer formed to exert filtration performance in the range of 0.4 to 2 mm for the first filtration and decomposition oil that has passed through the first filtration layer; And
A third filtration layer for allowing the second filtration and cracking oil that has passed through the second filtration layer to exhibit a filtration performance in the range of 1 to 10 μm so that the final filtered and cracked oil is collected through the second outlet;
Gum filtering system for improving the recyclability of the waste plastic comprising a.
The method of claim 5, wherein the third filtration layer,
40 to 60% by weight of calcium carbonate;
20 to 40% by weight of loess;
10 to 20% by weight of charcoal; And
10 to 20% by weight of petroleum pitch;
Gum filtration system for improving the recyclability of waste plastic, characterized in that composed of.

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