KR100855608B1 - A method for treating waste plasting and apparatus using the same - Google Patents

Abstract

A waste plastic treating method and an apparatus are provided to prevent various harmful matters from being generated, by producing plastic resin and H2(Hydrogen-2) gas as by-products. A waste plastic treating method comprises the steps of: crushing waste plastic; pouring the crushed waste plastic into a waste plastic treating device; applying compression friction heat while heating the input waste plastic by a ceramic heater, and melting the waste plastic by a hydrogen molecule separation method adopting induction heat; hydrogenating the melted material by adding an alumina carrier; melting and crystallizing the hydrogenated material in a vacuum distillation device; and synthesizing C2H4(Ethylene) and C6H6(Benzene) by cooling down obtained crystals and generating H2 gas as by-products. The hydrogen molecule separation method is executed by applying high-voltage electricity of 3kW and super-high frequency of 2,450MHz in an induction heat device(12-1).

Description

A Method for Treating Waste Plasting and Apparatus Using the Same}

The present invention relates to a method for treating waste plastics and to a device thereof, and more particularly, to reprocessing waste plastics without generating various harmful substances, thereby completely treating waste plastics, and at the same time being a clean alternative fuel. ₂ relates to a method for obtaining gas as a by-product and an apparatus which can be used for the method.

The rapid development of the petroleum industry after the Second World War provided various conveniences to humankind, among which the technology of converting materials such as C ₆ H ₆ and C ₂ H ₄ into C ₆ H ₅ CHCH ₂ (styrene monomer) It was only the development that gave mankind a plastic age. In addition, the infinite electric energy generated by nuclear power greatly enriched human beings.

However, modern abundant material life has given humanity a fatal difficulty that cannot be overcome, and the exhaustion of resources is imminent. By-products such as various harmful gases emitted from thermal power plants and the destruction of oxygen are caused by the lack of oxygen in the atmosphere, changes in the global climate, soil pollution, water pollution, marine pollution, ozone layer destruction, sea ice melting in the Antarctica and alpine ice. By destroying the balance, it not only causes diseases to humans, animals and plants, but also causes a variety of flora and fauna and deadly incurable diseases, putting the entire biological system including humans on the brink of extinction. If this scenario of disaster does not lead to fundamental changes in human consciousness and the development of groundbreaking new environmental technologies and their global application, the earth will soon perish.

An urgent task is to immediately stop the use of fossil fuels and waste incineration to protect the ozone layer and prevent the "adverse effects" of global climate change. In addition, in order to prevent resource depletion, the first used materials should be recycled, recovered for each component, and converted and remanufactured into beneficial and harmless materials.

New technologies to be invented to solve these challenges must meet the following three conditions:

Firstly, wastes such as wastes are collected by waste chemical components, not in block type landfill facilities and managed landfill facilities (leaching water treatment facilities, gas incineration, cogeneration, and fuel treatment facilities). Material conversion should be done to a useful and harmless material.

Second: The depletion of energy should be able to produce better and harmless clean energy to replace fossil fuels,

Third: Clean energy combustion process should not release harmful substances, convert them into beneficial substances, and make it possible to circulate and remanufacture by recycling rather than consuming existing substances.

Generally, industrial waste plastics or household waste plastics are recycled or disposed of depending on whether they can be recycled, and waste plastics that are not corroded among non-recyclable waste plastics are incinerated or melted and solidified according to whether they can be burned. It is utilized, but since it is impossible to recycle any more, it is incinerated and disposed of.

Waste plastics treatment by incineration and combustion involves the use of hazardous gases (including CH ₃ Cl, CCl ₂ F ₂ , CCl ₄ , CH ₃ CCl ₃ , CHBr ₃ , CH ₃ Br, etc.) in burning fossil fuels. CO, CO ₂ , HCN, NO ₂ , NH ₃ , NO _x , CH _3, etc.) are the main causes of environmental pollution. Especially, dioxin has a fatal effect on humans, animals and plants. have.

ClOx and BrOx generated by waste plastic incineration reach the ozone layer without decomposing and destroy the ozone (O ₃ ) layer, and CO, CO ₂ and NO ₂ emitted from incineration or thermal power plants and various engines Oxides cause a greenhouse effect on the earth's surface, leading to global warming, and warming is caused by the thawing of the Antarctic, Arctic, and alpine ice caps. The super typhoon swept away, leading to desertification of the continent, and the earth would be on the verge of destruction.

Dioxins occur at approximately 350-750 ° C. and are known to break above 750 ° C. However, when incinerated at a temperature above 400 ℃, since dioxin is already generated, it must rise to a temperature that destroys dioxin in a confined state, so that the treatment cost increases and moreover, the waste plastic is not properly mixed. If not, there is a problem that a partial low-temperature section occurs, it is not easy to raise the overall temperature uniformly above a certain temperature.

Incineration at temperatures above 380 ° C (flash point of chemicals 270 ° C) leads to complete combustion of organic materials such as wood and fibers, but incomplete combustion of chemicals such as synthetic resins, resulting in dioxins and harmful gases. Will be generated.

As a solution to this problem, a technique of classifying inorganic materials such as sand or concrete, organic materials and chemicals into a single species, and incineration or recycling separately has been proposed, but the waste plastic treatment cost is considerably increased due to enormous time and effort in the classification process. It is a difficult situation to rise as soon as possible.

Accordingly, G-7 countries, Republic of Korea, and UN. With the support of the International Fund, we tried to synthesize crude oil by incineration pyrolysis technology, but it is difficult to separate isomers, huge manpower is consumed due to coking phenomenon inside the machine, and due to the generation of huge harmful gases and 25% incineration, The production was less than 30%, and the economy was inferior, and in December 30, 2005, the GE DO Report in Japan declared that the incineration pyrolysis method failed.

On the other hand, due to the depletion of fossil fuels and the harmful gases emitted, countries around the world tried to replace H ₂ O with H ₂ clean energy based on electrolysis to produce hydrogen energy, but the value of H ₂ 1ℓ reached 15,000 won. At least 10 times as expensive as fuel, attempts to replace H _{2 are} also far from practical.

The present inventors have intensively researched to solve various problems arising in the conventional waste plastic treatment, and as a result, by developing a method capable of completely remanufacturing the waste plastic without separation, incineration or incineration pyrolysis, Came to.

Accordingly, an object of the present invention is to provide a method and a device which can be used as a by-product to clean H2 gas, which is a clean alternative fuel, as a by-product, while completely treating it with recycled raw materials without generating various harmful substances in treating waste plastic. To provide.

The object of the present invention as described above is that combustion does not occur by simultaneously melting low-density, high-density and flame-retardant plastic materials at high temperature in a vacuum state, and thus, various harmful gases are not generated, and thus, the molten plastic liquid mixture is reduced in pressure. It was achieved by synthesizing C ₂ H ₄ and C ₆ H ₆ in a lyo column, from which a styrene monomer resin was produced and at the same time providing a method and apparatus for producing H ₂ as a byproduct.

The present invention comprises the steps of grinding the waste plastic; Introducing the pulverized waste plastic into a waste plastic processing apparatus; Heating the introduced waste plastic with a ceramic heater, applying compressive frictional heat, and simultaneously melting the molten plastic into a molten material by a hydrogen molecular material separation method by dielectric heating; Adding an alumina carrier to the molten material to perform a hydrogenation reaction; Melting and crystallizing the hydrogenated reacted material in a vacuum distillation apparatus; And it provides a waste plastic treatment method comprising the step of synthesizing C ₂ H ₄ and C ₆ H ₆ by cooling the obtained crystals.

In the present invention, "hydrogen molecular material separation method" is a high-density electric material of 3 kHz and ultra-high frequency of 2,450MHz through high-density molecular material through a dielectric heating device, H molecules start the rotational movement, C and H molecules are molecular friction heat This means that the molecular separation due to the rapid increase in the frictional heat inside the material. In other words, when alternating current flows into the high-density molecular material and crosses the yin and yang, + material molecules are arranged in the negative electrode and-material molecules are arranged in the positive electrode. During this rapid process, the material generates internal frictional heat. The elements C and H are separated from each other.

In the present invention, "melting material" means a liquid material in which melting and mixing isomers of different melting points at the same time.

In the present invention, the "fusion crystal" refers to a beneficial and useful material in which the compatible material is produced by causing a hydrogenation reaction at an affinity temperature.

Materials applicable to the method for treating waste plastics according to the present invention include low density plastics such as PC, PE and the like, high density plastics such as polymers, nylon, various films and the like and flame retardant plastics such as It covers various plastic materials such as PVC and ABS.

In addition, according to the present invention, low-density plastics are generally produced by a method of heating by ceramic heaters, by heating by compression friction, and by separating hydrogen molecule materials by introducing various waste plastic materials into the waste plastic processing apparatus simultaneously or separately. Separation starts to liquefy at 110 to 130 ° C., high density plastics begin to separate and liquefy at 180 to 210 ° C., and flame-retardant plastics begin to separate and liquefy at 170 to 180 ° C. Low-density plastics have a molecular weight of less than 500, and there is no hydrogen molecule internal frictional heat generation, and they start to melt at 130 ° C even with external heating of ceramic heaters. It is heated by the heat generated by the heating, and the internal heating heat of hydrogen molecule is added to the external heating temperature of 130 ℃ and the heat of hydrogen molecule is added to 90 ℃. It is heated by the ceramic heater's external heating temperature of 130 ℃ and the hydrogen molecule's internal frictional heat of 40 ℃ is added to 170 ℃ and starts to melt. Therefore, according to the present invention, low density plastics, high density plastics, and flame retardant plastics are not burned, but are liquefied at the same time to form a mixture.

When the mixture material is administered with a high-k electric power of 3 kW and an ultra-high frequency of 2,450 MHz with a dielectric heating device at 270 ° C., C and H are separated by a rapid increase in frictional heat of the material by molecular friction heat, thereby forming a fused material. When the Al (OH) ₃ carrier is added thereto, a hydrogenation reaction occurs, and when the pressure is reduced to -40 mmAq in the reduced pressure distillation apparatus, the temperature is increased by 108 ° C., thereby increasing the total temperature to 378 ° C .. When it reaches (370 ℃ ~ 380 ℃), the crystallization crystallization, and cooling it synthesizes C ₆ H ₆ and C ₂ H ₄ , the light C ₂ H ₄ And heavy C ₆ H _{6 It} is discharged separately. This can be prepared by C ₆ H ₅ CHCH ₂ resin by a polymerization catalyst, while producing by-product H ₂ gas as a clean energy raw material.

In the waste plastics treatment method according to the present invention, the low density, high density, and flame retardant plastics will be described in the process of being compatible with the same material by thermal equilibrium chemical reaction.

When the temperature reaches 270 ℃ by electric ceramic heating on the outside of the melting furnace in the control box, 200HP strong compression is applied to the extrusion drive section, and the waste plastic is introduced from the raw material inlet.

When 3W high-voltage electricity and 2450MHz ultra-high frequency are injected into the injected waste plastic through dielectric heating, the internal friction heat temperature rapidly increases inside the hydrogen molecules, and the bond between C and H is separated and liquefied.

Low-density polymer material is not affected by dielectric heating, so there is no frictional heat, so free energy is decreased and entropy is increased. High-density polymer material absorbs frictional heat generated by screw rotation and compression inside the melting furnace to increase free energy. do.

When the screw inside the melting furnace is rotated at a speed of 30 times / 1 minute, each group of materials passes through the melting furnace, and low-density substances are melted at 130 ° C by electric heating in one step. The dielectric material is heated up by 90 ℃ by the input of 3K high voltage electricity and 2450MHz ultra-high frequency, and it becomes 220 ℃ in total and melts to the high-density polymer material.

The liquid substance is a substance in which the link between the C molecule and the H molecule is broken at a temperature of 270 ° C. The liquid material is transferred to a reduced pressure distillation column by an Al (OH) ₃ carrier and decompressed by -40 mmAq by a decompression device. C ₆ H ₆ and C ₂ H ₄ are synthesized and distilled in the distillation column, and then transferred to the cooling device, where C ₆ H ₆ and C ₂ are affinity temperature of C molecule and H molecule. H ₄ is produced.

Chemical reactions are caused by the frictional heat of the molecular molecules, and according to the second law of thermodynamics, the law of increasing entropy, energy is transferred to a level from the higher to the lower to achieve an equilibrium state. As the chemical reaction of a substance continues, the free energy of effective work increases or decreases, converting the isomeric substance into a substance of thermal equilibrium.

In another aspect, the present invention provides a waste treatment apparatus using the waste treatment method.

Waste treatment apparatus according to the present invention comprises a first processing unit, a second processing unit and a third processing unit, the first processing unit is a vertical injection passage provided in communication in the vertical direction; An extrusion vertical feed screw rotatably provided in the vertical injection passage; A vertical drive unit for driving the vertical feed screw; A horizontal injection passage provided in communication with the vertical injection passage in a horizontal direction and having a waste plastic inlet on one side; A horizontal feed screw rotatably provided in the horizontal injection passage; A ceramic heater heating device installed outside the horizontal injection passage; And a high density chemical dielectric heating device installed outside of the horizontal injection passage,

The second processing unit is connected to the vertical injection passage on one side of the waste plastics processed in the first processing unit is provided with an inlet and a pressure reducer transfer passage; An extrusion transport screw rotatably provided inside the extrusion flow path; An extrusion drive unit for driving the extrusion feed screw; A vacuum pump connected to one side of the extrusion passage to discharge the air inside the extrusion passage; A ceramic heater heating device for increasing a temperature inside the extrusion passage installed outside the extrusion passage; An internal high density polymer dielectric heating device connected to one side of the extrusion channel; An Al (OH) ₃ inlet connected to one side of the extrusion channel; A reaction tank connected to the extrusion channel to hydrogenate the waste plastic and Al (OH) ₃ introduced therein; And a carrier outlet connected to the extrusion channel and a reduced pressure transfer device for the compatible material,

The third processing unit is a distillation column; A pressure reducing device connected to one side of the distillation column; And C ₂ H ₄ and C ₆ H ₆ are outlets

It provides a waste plastic processing apparatus, characterized in that consisting of.

In the waste plastic processing apparatus according to the present invention, the horizontal injection passage is characterized in that a plurality, preferably four are provided with a predetermined interval in the circumferential direction around the vertical injection passage.

In the waste plastic processing apparatus according to the present invention, each of the extruded conveying screw, the vertical conveying screw and the horizontal conveying screw is provided with at least one pair in parallel with a predetermined distance from each other.

Waste plastic processing apparatus and method according to the present invention is to put the waste plastic materials according to the molecular weight separately without separating them into low density materials, incombustible materials, high density materials, and mixed them, and the molecular affinity of the plastic with the ceramic external electric heating By using dielectric properties, high-voltage electric power of 3 kW and ultra-high frequency of 2,450MHz are applied through dielectric heating to generate internal friction heat of hydrogen molecules, liquefy the waste plastic mixture at the same time, resynthesize it into liquid mixture, and manufacture it again. And the production of clean alternative energy H2 gas, which fundamentally eliminates the generation of harmful gases that cause depletion of fossil energy, ozone depletion, and global climate change, thus protecting planet's destruction and the lives and health of humans, animals and plants. To prevent serious damage to people, nature or the environment. It is a very useful invention for the waste plastics processing and environmental protection industry.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the scope of the present invention is not limited to this embodiment.

As shown in FIG. 2. First, when the plastic waste plastic is introduced into the horizontal injection channel 40, the plastic waste plastic is introduced into the extrusion channel 11 through the vertical injection channel 30, and at this time, by the horizontal feed screw 41 and the vertical feed screw 31. The compression force causes the waste plastic to be pushed into the extrusion flow path 11. In the extrusion passage 11, the waste plastic is melted to a high temperature state by heat of compression friction by rotation of the extrusion feed screw 15 in a vacuum state, heat by ceramic heater heating, and frictional heat in the molecular material of waste plastic by dielectric heating. Discharged into the liquid phase mixture.

Since the vertical injection screw 31 is provided in the axial direction in the vertical injection passage 30, it is preferable to allow the waste plastic to be injected from the side.

The horizontal injection passage 40 is provided with at least one or more, preferably four, in the direction crossing the vertical injection passage 30, and is supplied with the waste plastic gelled into the vertical injection passage 30, the vertical injection passage ( It is also possible to provide a plurality with a predetermined interval around the 30). In this case, the waste plastic is supplied from the plurality of flow paths to one flow path, and the condensed waste plastic is supplied to the extrusion flow path 11. The horizontal injection passage 40 is also provided with a conveying screw to be conveyed waste plastic.

The extrusion flow path 11 presses the waste plastics while raising the temperature of the waste plastics by the frictional heat during the axial rotation of the conveying screw, the heat by the ceramic heater, and the heat of friction of the inner plastic material due to the dielectric heating. Since the low-density, high-density and flame-retardant polymer materials must be completely melted by simultaneously raising the temperature to the melting point before being discharged to the outside, it is preferable to provide a plurality of transfer screws to independently control the section temperature and the compression speed.

The feed screw provided in the extrusion passage 11 and the horizontal injection passage 40 is preferably provided with a plurality of parallel to each other at a predetermined interval in parallel to maximize the mixing and friction of the waste plastic.

As shown in FIG. 2, the vertical injection passage 30 is provided in vertical communication with the waste plastic inlet 13 of the extrusion passage 11, and the vertical transfer screw 31 is rotatably rotated therein. It is provided, the vertical transfer screw 31 is driven by the vertical drive unit (32).

As shown in FIG. 3, four horizontal injection passages 40 are radially provided and communicated with the outer axis of the vertical injection passage 30 at predetermined intervals along the circumferential direction, and each horizontal injection passage 40 is connected. In the interior of the horizontal feed screw 41 is provided rotatably axially, each horizontal feed screw 41 is driven by each of the horizontal drive section 42, one axis of each horizontal injection passage 40, waste plastic Inlet 40a, vacuum pump 20, ceramic heater heating 40-1, dielectric heating device 40b, and water vapor discharge device 40c are provided, respectively.

The waste plastic that is introduced into the waste plastic inlet 40a of the horizontal injection channel 40 is transferred to the vertical injection channel 30 by the horizontal conveying screw 41, in which one in four horizontal injection channels 40 is used. By simultaneously transporting the waste plastics to the vertical injection passage 30, the vertical injection passage 30 is supplied with waste plastics in a gelled state.

Meanwhile, as the inside of the extrusion passage 11 is vacuumed by the vacuum pump 20-1, a force for moving the waste plastic from the vertical injection passage 30 to the extrusion passage 11 by external pressure. Will receive.

The waste plastics passing through the four horizontal injection passages 40 are friction heat by the frictional force and pressure by the horizontal transfer screw 41 in the vacuum-tight state by the vacuum pump 20, and the external ceramic heater 40-1. It melts and fuses by heat | fever by heat and the frictional heat inside a molecule | numerator by the dielectric heating apparatus 40b. The waste plastic conveyed to the vertical injection channel 30 is pressurized by the vertical conveying screw 31 to the extrusion channel 11, at which time the waste plastic passes through the vertical injection channel 30 and frictional contact with the vertical conveying screw 31. And pressure increases the temperature.

The interior of the vertical injection channel 30 is because the waste plastic supplied from the four horizontal injection channel 40 is conveyed in a consolidation state, so that the waste plastic or the fluid therein cannot be detained, but the horizontal injection channel 40 is Water vapor generated in the waste plastic in the phase is discharged to the outside by the waste plastic inlet 40a and the steam outlet 40c.

In the four horizontal injection passages 40, moisture of inorganic substances such as soil, sand, and concrete, and organic substances such as wood and fibers are evaporated and dried, and the internal temperature is increased while passing through the vertical passages 30. As it rises continuously and becomes completely dry, it begins to melt, and the gelled hydrocarbon compound is pushed into the vertical injection channel 30 and the ungelled chemical is introduced into the extrusion channel 11 in the solid state.

As shown in FIG. 2, the extrusion passage 11 includes an extrusion passage 11 for receiving waste plastic from the vertical injection passage 30, a vacuum pump 20-1, and a dielectric heating apparatus 12-1. And a hydrogenation reactor 11-1 having a length of 500 mm and a flange connection portion 18. In addition, an Al (OH) ₃ carrier alumina inlet 12 is provided at the top, a crude distillation column 16 as a carrier, and a pressure reduction device 14 for transporting the carrier to a distillation column.

The extruded flow passage 11 is provided with a pair of extruded conveying screws 15 so as to be rotatable, and the extruded conveying screws 15 are driven by the extrusion driving device 17.

A gelated waste plastic inlet 13 is formed at one side of the extrusion passage 11 to receive the gelled waste plastic from the vertical injection passage 30, and the gelled waste plastic passes through the inside of the extrusion passage 11. The remaining water vapor is discharged to the outside by the vacuum pump 20-1, and the waste plastics in the vacuum are subjected to heat generated by heating the ceramic electric heater 40-1 and friction heat inside the molecule by the dielectric heating device 12-1. After completely liquefied by hydrogen molecular separation, Al (OH) ₃ , introduced from the Al (OH) ₃ inlet 12, was transferred to the distillation column 16 using Al (OH) ₃ as a carrier.

Waste plastics transferred to the distillation column (16) is a light C ₂ H ₄ (16-1) at affinity temperature (370 ℃ ~ 380 ℃) of C ₆ H ₆ and C ₂ H ₄ on the basis of the principle of the distillation column decompression temperature rise Heavy C ₆ H ₆ (16-2), each discharged separately.

1 is a view schematically showing a waste plastics processing and use flow chart using the waste plastics processing apparatus according to the present invention.

2 is a view schematically showing the configuration of a waste plastic processing apparatus according to the present invention.

3 is a view schematically showing the configuration of a horizontal injection passage of the waste plastic processing apparatus of the present invention.

※ Brief description of the symbols in the drawings

11 Extrusion Euro 11-1 Hydrogenation Reactor

12 Al (OH) ₃ Carrier Inlet 12-1 Dielectric Heating Device

13 Waste plastic inlet 14 Pressure reducing device

15 Extrusion feed screw 16 Distillation column

16-1 C ₂ H ₄ Outlet 16-2 C ₆ H ₆ Outlet

17 Extrusion Drive 18 Flange Connection

20 Vacuum Pump 20-1 Vacuum Pump

30 Vertical feed channel 31 Vertical feed screw

32 Vertical Drive 40 Horizontal Injection Flow

40-1 Ceramic Heater Heater 40a Waste Plastic Insert

40b oilfield heater 40c water vapor discharge system

41 Horizontal feed screw 42 Horizontal drive section

Claims (5)

Grinding the waste plastic; Introducing the pulverized waste plastic into a waste plastic processing apparatus; Heating the introduced waste plastic with a ceramic heater, applying compressive frictional heat, and simultaneously melting the molten plastic into a molten material by a hydrogen molecular material separation method by dielectric heating; Adding an alumina carrier to the molten material to perform a hydrogenation reaction; Melting and crystallizing the hydrogenated reacted material in a vacuum distillation apparatus; And Cooling the fusion crystals obtained above to synthesize C ₂ H ₄ and C ₆ H ₆ while simultaneously generating H ₂ gas as a by-product Waste plastic treatment method consisting of. The method of claim 1, wherein the method for separating hydrogen molecules by dielectric heating is performed by administering a high-voltage electric power of 3 kW and ultra high frequency of 2,450 MHz as a dielectric heating device. A waste plastic processing apparatus comprising a first processing unit, a second processing unit, and a third processing unit, the first processing unit comprising: a vertical injection passage provided in communication in a vertical direction; An extrusion vertical feed screw rotatably provided in the vertical injection passage; A vertical drive unit for driving the vertical feed screw; A horizontal injection passage provided in communication with the vertical injection passage in a horizontal direction and having a waste plastic inlet on one side; A horizontal feed screw rotatably provided in the horizontal injection passage; A ceramic heater heating device installed outside the horizontal injection passage; And a high density chemical dielectric heating device installed outside of the horizontal injection passage, The second processing unit is connected to the vertical injection passage on one side of the waste plastics processed in the first processing unit is provided with an inlet and a pressure reducer transfer passage; An extrusion transport screw rotatably provided inside the extrusion flow path; An extrusion drive unit for driving the extrusion feed screw; A vacuum pump connected to one side of the extrusion passage to discharge the air inside the extrusion passage; A ceramic heater heating device for increasing a temperature inside the extrusion passage installed outside the extrusion passage; An internal high density polymer dielectric heating device connected to one side of the extrusion channel; An Al (OH) ₃ inlet connected to one side of the extrusion channel; A reaction tank connected to the extrusion channel to hydrogenate the waste plastic and Al (OH) ₃ introduced therein; And a carrier outlet connected to the extrusion channel and a reduced pressure transfer device for the compatible material, The third processing unit is a distillation column; A pressure reducing device connected to one side of the distillation column; And C ₂ H ₄ and C ₆ H ₆ are outlets Waste plastic processing apparatus, characterized in that consisting of. The waste plastic processing apparatus of claim 3, wherein four horizontal injection channels are provided at predetermined intervals in a circumferential direction about the vertical injection channel. The waste plastic processing apparatus according to claim 3, wherein each of the extruded conveying screw, the vertical conveying screw, and the horizontal conveying screw is provided in parallel with at least one pair at a predetermined distance from each other.

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