JP2013043913A - Apparatus and method for subjecting plastic waste to liquefying reduction treatment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a means for allowing hydrogen, which is required to decompose a fat-and-oil component having high molecular bonding comprising a plastic waste, to exist in a heating furnace under a condition of no fear of hydrogen explosion in a means for subjecting plastic waste to liquefying treatment in which the plastic waste is charged into the heating furnace, melted by heat treatment, and decomposed into a fat-and-oil component and a carbide, and the produced vaporized gas of the fat-and-oil component is introduced into a cooler, cooled, devolatilized, and liquefied for reduction into recyclable oils and fats.SOLUTION: In a process of the heat treatment of the plastic waste in the heating furnace, heated water vapor is blown and injected into the heating furnace and a water gas shift reaction is caused with the heated water vapor and carbon monoxide (CO) produced by heating and melting the plastic waste, wherein a lattice comprising an iron material mounted in the heating furnace is used as a catalyst to produce hydrogen. Then, the hydrogen is used for a synthesis of a hydrocarbon by the reaction of a Fischer-Tropsch process and the decomposition of a polymer of a produced high molecular hydrocarbon, and thereby liquefying the plastic waste for reduction into the oils and fats.

Description

  In the present invention, a thermoplastic resin waste material (plastic waste material) is put into a heating furnace and decomposed by heating and melting, and the generated vaporized gas is extracted from the heating furnace and led to a cooling device to be cooled and liquefied. In addition, the present invention relates to an improvement in an oil reduction treatment means for plastic waste materials that are oiled and reduced to reusable fats and oils.

  Plastic waste material is put into a heating furnace, the plastic waste material is decomposed into oil and fat components by heat treatment at a low temperature of about 250 ° C to 350 ° C, and the vaporized gas of the generated oil and fat components is led to a cooling device and cooled. Japanese Patent Application Laid-Open No. 2004-168806 of Patent Document 1 discloses a technique for liquefying and reducing oil to reusable fats and oils.

  Also, with this technology, the regenerated fats and oils obtained by cooling the vaporized gas extracted from the heating furnace are of low quality containing a large amount of oil components with high boiling points such as tar. In the furnace, heat treatment is performed on the plastic waste of the carbon-containing material, and the oil vapor generated by the heat treatment is led to a cooling device to be cooled and liquefied, and then heated in an oil treatment process for extracting the liquefied oil. Japanese Patent Application Laid-Open No. 2010-275381 discloses a technical means for introducing hydrogen gas into the furnace and performing heat treatment of the plastic waste material in the heating furnace in the presence of hydrogen gas. .

  By the way, in the technical means of this patent document 2, hydrogen gas is introduced into a heating furnace set to 150 ° C. to 400 ° C. up to 500 ° C. from a hydrogen inlet provided in the heating furnace. If there is oxygen in the heating furnace, there is a risk of hydrogen explosion, and in order to avoid this danger, oxygen is expelled from the heating furnace and there is no oxygen causing hydrogen explosion in the heating furnace. There is a problem that no effective means can be found.

  In addition, the oiled oils and fats obtained by cooling the vaporized gas still contain a large amount of polymer compounds, and the introduced hydrogen works so effectively in the decomposition of the polymers that make up plastic waste. There is no problem.

JP 2004-168806 A JP 2010-275381 A

  The problem to be solved in the present invention is that plastic waste material is put into a heating furnace, melted by heat treatment, decomposed into fat components and carbides, and the vaporized gas of the resulting fat components is led to a cooling device. Explosion of hydrogen required for decomposing polymer-bonded oil and fat components that make up plastic waste in a hydrogenation process for plastic waste that is cooled and liquefied and reduced to reusable oils As a state where there is no danger, there is a point that constitutes a means to be present in the heating furnace.

The present invention (1) for solving the above-mentioned problems is
Plastic waste material including the process of heat-treating plastic waste material in a heating furnace to decompose and melt it, and the vaporized gas of the generated oil and fat component is led to a cooling device through a duct, cooled, liquefied, and converted to oil and fat. In the oil reduction method, in the heating process of the plastic waste material in the heating furnace, heated steam is blown into the heating furnace and carbon monoxide (CO generated by heating and melting of the heated steam and the plastic waste material is injected. ), Using a lattice made of iron material that is not subjected to surface treatment such as iron oxide or galvanization installed in a heating furnace as a catalyst, a water gas shift reaction of CO + H ₂ O → H ₂ + CO ₂ is performed to generate hydrogen and heat Hydrogen is present in the furnace, and this hydrogen is used as a fischer with carbon monoxide generated by heating and melting plastic waste. Oil waste reduction treatment of plastic waste, characterized in that it is used to synthesize hydrocarbons by the tropush reaction and to decompose the resulting polymer hydrocarbons into oils and fats. Is the method.
In the present invention (1), the plastic waste material is heat-treated in a heating furnace to be melted and decomposed, and the vaporized gas generated by decomposition into oil and fat components is cooled and liquefied to reduce to oils and fats. In addition, the hydrogen required for the synthesis reaction is present in the heating furnace by the water gas shift reaction generated by the injection of water vapor, regardless of the introduction of hydrogen gas from the outside, and the high pressure By injecting the water vapor, hydrogen is expelled from the inside of the heating furnace to cause oxygen explosion, and hydrogen is used safely to effectively reduce the oil waste of plastic waste.

In the present invention (2), the plastic waste material is heat-treated in the heating furnace in the presence of hydrogen generated by the water gas shift reaction generated by the water vapor injection in the heating furnace. The invention is characterized in that the temperature is controlled so that the furnace surface temperature of the heating furnace is maintained at 250 ° C. or higher at which the plastic material is melted within a range not exceeding.
In the water gas shift reaction performed in the heating furnace by injecting water vapor, when the temperature in the furnace exceeds 500 ° C., the reverse reaction occurs and the generation of hydrogen stops, so this reverse reaction is prevented and hydrogen is generated. It is an invention that maintains the state of the positive reaction. Moreover, when the furnace surface temperature on the inner surface side of the heating furnace decreases, the amount of carbon monoxide generated when the plastic waste material melts decreases, and the water gas shift reaction due to the reaction between this carbon monoxide and hydrogen decreases. This is an invention to prevent this.

In the present invention (3), the water vapor blown and injected into the heating furnace is water that has been heated by irradiation with high-frequency electromagnetic waves before being injected into the heating furnace, and the plastic is put into the heating furnace. The amount of water in a range not exceeding 5 wt% of the waste material is changed to steam, and the oil pressure of the plastic waste material is continuously injected at a constant or constant time as the pressure in the furnace does not exceed ² kgf / cm ² This is a reduction treatment method.
When the plastic waste material heated and melted in the heating furnace is reacted with water vapor at a high temperature, hydrogen is generated by a water gas shift reaction of CO + H ₂ O → CO ₂ + H ₂ , and this hydrogen is melted in the heating furnace. It works for decomposition of polymer hydrocarbon polymer generated from plastic waste and synthesis reaction of hydrocarbon of FT method with carbon monoxide. At this time, water vapor is heated by irradiating high frequency electromagnetic wave. When water vapor is generated from the water and injected, compared to the case where water vapor generated from water that is not subjected to heat treatment by electromagnetic waves is injected, the oiling efficiency is improved. It is an invention to be content.
As for the steam to be injected, when 100 kg of plastic waste is added in 1 hour, 5 kg is injected in 1 hour. However, the volume of water becomes about 1700 times when it becomes steam. In consideration, inject | pour so that ² kgf / cm <2> may not be exceeded.

In the present invention (4), a heating furnace in which a far-infrared ray generating material that emits far-infrared rays by heating is provided on the inner surface side with a heat insulating material and heating means on the outer peripheral side is formed in a cylindrical shape, and one end in the axial direction thereof A plastic waste material supply port is opened on the side, a carbide discharge port is opened on the other end side in the axial direction, and the plastic waste material charged inside is carbonized while stirring from the one end side to the other end side. The vaporized gas generated from the plastic waste material that has been axially mounted and transported and melted by heating is guided to the cooling device by the extraction duct that communicates with the heating furnace, and is cooled and liquefied to be oiled into fats and oils An oil reduction treatment apparatus for reducing, wherein the cylindrical heating furnace is formed in a cylindrical shape that is long in the axial direction, and an open port is formed on the upper surface side along the axial direction. To form a duct with the bottom side open Then, a reaction furnace that covers the outer periphery with a heat insulating material is connected, and the connection site is made of iron oxide that is a catalyst for water gas shift reaction, iron material that has not been surface-treated such as galvanization, or stainless steel iron material A steam injection nozzle for injecting steam into the heating furnace is installed at a part close to the one end side of the reactor, and an extraction duct is connected to the part close to the other end side. This is an oil reduction treatment apparatus for plastic waste material.
Carbon monoxide and vaporized gas generated from plastic waste material that is heat-treated in the heating furnace and decomposes and melts rises in the heating furnace and is connected to the upper surface of the heating furnace. It will stay. Hydrogen generated by the water gas shift reaction between water vapor blown from the water vapor nozzle and carbon monoxide generated from plastic waste material that has been heated and melted rises due to its low specific gravity and is connected to the upper part of the heating furnace. Gather in the reactor. The reaction furnace is formed in a long duct shape along the axial direction of the cylindrical heating furnace, and the extraction duct is connected and connected to the rear end side. The rising carbon monoxide and vaporized gas pass through the reactor and are led to the cooling device by the extraction duct. For this reason, through the first stage reaction of the water gas shift reaction by the injected steam on the first half side in the reaction furnace, the second stage FT synthesis reaction is performed on the second half side to produce synthetic oil, It is an invention that enables oily reduction of plastic waste material to be efficiently performed by using hydrogen safely without introducing hydrogen gas from the outside that is at risk of explosion.

  The present invention (5) is a plastic waste material oil reduction treatment apparatus according to the present invention (4), wherein an agitator pivoted in a cylindrical heating furnace is an iron plate not subjected to surface treatment such as iron oxide or galvanization. It is an invention characterized in that it is formed of a stainless steel plate, and an agitator mounted in a heating furnace and installed in an oil reduction treatment apparatus is a water gas shift reaction and Fischer-Tropsch produced in the heating furnace. It is an invention of the content which is made to function as a catalyst of the reaction of the method.

According to the present invention (6), in the oil waste reduction treatment apparatus for plastic waste according to the present invention (4), the inner wall surface of the duct-shaped reaction furnace provided on the upper surface side of the heating furnace in connection with the heating furnace is provided with iron oxide. It is an invention characterized in that it is made of an iron plate or stainless steel material that is not subjected to surface treatment such as galvanization,
This is an invention in which the inner wall surface of the reaction furnace itself serves as a catalyst for the water gas shift reaction and the Fischer-Tropsch reaction performed in the reaction furnace.

  It is required for decomposition and synthesis reactions when plastic waste is melted and decomposed by heating in a heating furnace, decomposed into oil and fat components, and the resulting vaporized gas is cooled and liquefied and reduced to fats and oils. The hydrogen explosion is caused to occur in the heating furnace by the water gas shift reaction generated by the injection of water vapor, regardless of the introduction of hydrogen gas from the outside, and by the injection of high-pressure water vapor. It can be safely used by expelling oxygen, which is a cause of oxidization, from the inside of the heating furnace.

It is the side view which carried out the longitudinal section partially of one Example of the oil-ized reduction processing apparatus of the plastic waste material used for implementation of this invention. It is the rear view which carried out the longitudinal section of the oil-ized reduction processing apparatus same as the above. It is the top view which partially crossed the oil-ized reduction processing apparatus same as the above. It is an enlarged longitudinal rear view of the oil reduction treatment apparatus. It is a perspective view in the state before sticking of the far-infrared generating material stuck on the inner periphery of a heating furnace of an oil-ized reduction processing device same as the above. It is the rear view which carried out the vertical cut in the state which stuck the far-infrared generating material same as the above to the inner surface of the trunk | drum peripheral wall of a heating furnace. It is expansion | deployment explanatory drawing of the state assembled | attached to the heating furnace of the steam generator.

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

  FIG. 1 to FIG. 3 show one embodiment of an oil reduction treatment apparatus used for carrying out the method of oil waste reduction treatment of plastic waste material of the present invention, and FIG. FIG. 2 is a rear view of a part of the same apparatus, FIG. 3 is a plan view of a part of the apparatus, and FIG. 4 is an enlarged vertical side view of the heating furnace a. Is a heating furnace, b is a supply port for introducing plastic waste into the heating furnace a, c is an outlet for discharging carbide of plastic waste material melted and decomposed in the heating furnace, and d is a plastic charged into the heating furnace a. An agitator mounted in the heating furnace a so as to promote carbonization while stirring the waste material and cause the carbide to flow toward the outlet c, e is a reactor provided on the upper surface side of the heating furnace a connected to the heating furnace a , F is an electric heater installed on the outer peripheral surface of the heating furnace a, Is a heat insulating material coated on the outer peripheral surface of the heating furnace a and the reaction furnace e, h is a far infrared ray generating material provided inside the heating furnace a, N is a steam nozzle for injecting steam into the heating furnace a, j is An extraction duct for extracting vaporized gas generated from the plastic waste material in the heating furnace a, k is a cooling device connected to the downstream side of the extraction duct j, and L is a supply for supplying the plastic waste material to the supply port b Indicates the device.

  As shown in FIG. 4, the heating furnace a is an iron plate 10 that is not subjected to surface treatment such as iron oxide, galvanization, or stainless steel that serves as a catalyst for the water gas shift reaction and the Fischer-Tropsch reaction. A plurality of cylindrical bodies a ′ having a constant unit length as shown in FIG. 3 are formed in the axial direction. By connecting and assembling, it is formed in a long cylindrical shape in the axial direction. The opening 11 on the upper surface side of the heating furnace a has an iron plate that is not subjected to surface treatment such as galvanization or a stainless steel plate that serves as a catalyst in the water gas shift reaction and the Fischer-Tropsch reaction (FT method reaction). The reactor e formed in the shape of an open duct is installed in such a manner that the opening on the lower surface side is connected to the opening 11 on the upper surface side of the heating furnace a so as to be integrated with or continuous with the heating furnace a. It is.

  In this example, the heating furnace a was suspended from the ceiling of the machine frame F by using the reaction furnace e provided integrally or integrally connected to the opening 11 on the upper surface side as a support machine frame. By supporting it on the support frame F ′, the machine frame F is suspended and suspended in a suspended state, whereby the heating means such as the electric heater f and the heat insulating material g installed on the outer surface side of the heating furnace a are provided. It can be easily and evenly attached to the entire exposed outer periphery.

  The far-infrared ray generating material h installed on the inner surface side of the heating furnace a uses a ceramic panel or a ceramic ball obtained by crushing a stone material that generates far infrared rays by heating and firing it into a tile shape, and this constitutes the heating furnace a. Attaching and attaching to the inner surface of the iron plate 10 is difficult, but when the attachment and fixing is difficult, as shown in FIG. The far-infrared ray generating material h is wrapped with a non-treated iron plate or a stainless steel porous iron plate 80, and a mounting portion 81 provided on the porous iron plate 80 forms a body peripheral wall of the heating furnace a as shown in FIG. It attaches by latching to the assembly seat 12 provided in the inner surface of the iron plate 10. FIG.

  At this time, in the far-infrared ray generating material h that is attached to the upper half portion of the inner wall surface of the heating furnace a that does not come into contact with the plastic waste material that is scraped up by the agitator d that rotates and operates, As shown in FIG. 4, the protruding length of the mounting portion 81 provided on the porous iron plate 80 to be held is lengthened, and the upper half side of the iron plate 10 forming the body peripheral wall of the heating furnace a is expanded in the radial direction. The steel plate 10 is separated from the inner surface of the iron plate 10 constituting the shell peripheral wall of the heating furnace a by being attached to and supported by the inner surface of the iron plate 10 of the enlarged diameter portion. It attaches to the state in which the space s which communicates with the internal space of the heating furnace a is formed between the materials h, and thereby the vaporized gas in the heating furnace a contacts with the inner peripheral surface of the iron plate 10 to function as a catalyst and tar. Effective thermal decomposition We, and polymer carbide condenses in contact with the inner surface of the furnace body, so that to facilitate the flow to the bottom of the furnace down the inner surface of the cylinder jacket.

  In this embodiment, the supply port b for introducing the plastic waste material into the heating furnace a is opened at the lower end portion of the cover plate 13 on the front end side (left end side in the figure) of the cylindrical heating furnace a. And the front end side of the feed screw 201 of the supply apparatus L which is arrange | positioned at the front side of the heating furnace a and can be supported by the machine frame F is connected to this.

  The supply device L includes a hopper 202 into which plastic waste material that has been crushed and washed with water is charged, a feed pipe 203 connected to a lower opening of the hopper 202, and the feed screw 201 that is pivotally supported in the feed pipe 203. The plastic waste material thrown into the hopper 202 is sequentially fed into the heating furnace a by the driving rotation of the feeding screw 201.

  The discharge port c is for discharging the remaining carbide, which is obtained by melting and decomposing the plastic waste material sent from the supply port b into the heating furnace a by the heat treatment and vaporizing and separating the oil and fat components, to the outside of the furnace. However, in this example, it is opened at a site near the rear end of the bottom portion of the trunk wall made of the iron plate 10 of the heating furnace a. The discharge port c is connected to a discharge pipe 30 formed in a funnel shape so as to hang down, and the lower end of the funnel-shaped discharge pipe 30 is suspended in the machine frame F in a suspended manner. It is connected to a discharge cylinder 32 that houses a discharge screw 31 that is arranged below a and is supported on the machine frame F.

  The agitator d mounted in the heating furnace a is a plastic that is inserted into the heating furnace a from the supply port b and receives heating by a heating means such as an electric heater f and irradiation of far infrared rays from a far infrared ray generating material h. The waste material is allowed to flow to the rear end side in the heating furnace a while stirring. In this example, the periphery of the rotary shaft 40 that can be spanned between the front and rear cover plates 13 and 14 of the cylindrical heating furnace a. A spiral blade 41 is attached to the surface to form a screw auger shape. The spiral blade 41 is formed of an iron plate not subjected to surface treatment such as iron oxide and galvanization or a stainless steel iron plate so as to be a catalyst for a water gas shift reaction generated in the heating furnace a by injection of water vapor. ing.

  The reaction furnace e collects the hydrogen generated and raised by the water gas shift reaction by injection of vaporized gas, carbon monoxide and water vapor generated from the plastic waste material by heat treatment in the heating furnace a, The upper part of the cylindrical heating furnace a is shaped so as to expand the heating furnace a upward. In this example, an iron plate not subjected to surface treatment such as iron oxide or galvanization or a stainless steel iron plate is used. And formed into a square box shape that is long in the front-rear direction with a channel-like cross-sectional shape that opens downward in front view, and the opening 50 on the lower surface side thereof is connected to the cylindrical opening 11 By doing so, it is configured in a duct shape that is integral with or integrally with the heating furnace a.

  Further, the reaction furnace e is installed so as to be integrated or integrally continuous with the upper part of the heating furnace a as described above, thereby forming the inner space of the heating furnace a in a flask shape when viewed from the front. The reaction furnace e that is continuous with the heating furnace a is coated with a heat insulating material g in the same manner as the heating furnace a, but is not provided with heating means such as an electric heater f. The temperature is made lower by the temperature inside the heating furnace a heated by heating means such as an electric heater f assembled on the outer peripheral surface.

  This is because a mixed gas of carbon monoxide generated from plastic waste and injected water vapor is used as a furnace such as an iron plate 10 constituting the shell wall of the heating furnace a, an iron plate constituting the agitator d, and an iron plate constituting the reaction furnace e. The water gas shift reaction is mainly performed inside the reaction furnace e in which the internal temperature is lower than the temperature in the heating furnace using the iron oxide installed in the catalyst as a catalyst, so that the reverse reaction occurs in the water gas shift reaction. This is to make it function to suppress the occurrence.

  The inner space of the reaction furnace e and the inner space of the heating furnace a are separated from each other at the connection portion between the opening 50 on the lower surface side of the reaction furnace e and the opening 11 on the upper surface side of the heating furnace a. The lattice m is mounted. The lattice m is provided in the form of a unit lattice made of an iron material made of iron plate or stainless steel not subjected to surface treatment such as iron oxide and galvanization so as to be a catalyst for the water gas shift reaction and the FT method reaction described above. However, in this embodiment, a plurality of unit cylinders a ′ formed to have a constant unit length are joined together in parallel. The unit cylinder of the heating furnace a is combined with the heating furnace a. A unit cell m ′ having a length corresponding to the length of a ′ is assembled, and the unit cell m ′ is arranged in parallel to be mounted on the body of the heating furnace a.

  The unit lattice m ′ formed in a block shape having a length corresponding to the unit length of the heating furnace a is provided with a rail-shaped abutment 15 along the front-rear direction at the opening 11 on the upper surface side of the heating furnace a. It is installed and placed on the abutment 15 in parallel in the front-rear direction so as to be slidable in the front-rear direction, so that the end wall on the rear end side of the reactor e can be opened and closed. From the window hole (not shown) installed in the machine, it can be taken out of the machine by being sequentially slid and inspected.

  In addition, the extraction duct j for extracting the vaporized gas generated from the plastic waste material by the heat treatment in the heating furnace a and guiding it to the cooling device k is a ceiling of a part close to the rear end side of the reaction furnace e. An extraction port is opened in the section, and a base end is connected to the extraction port so that the vaporized gas is extracted at the rear end portion in the reaction furnace e.

  As shown in FIG. 3, the cooling device k is a condensing material in which refrigerant is circulated by the operation of a refrigerator (not shown) in a cooling tank 100 arranged in parallel with the side of the heating furnace a and mounted on the machine frame F. The cooling tank 100 is connected to an oil / water separation tank 101 that separates oil and fat components that are cooled and liquefied from water.

  And the steam nozzle N which injects and injects | pourings water vapor | steam in order to produce a water gas shift reaction in the heating furnace a is installed in the ceiling part and side part of the site | part which approaches the front end side of the reaction furnace e.

  The steam generator 9 for supplying steam to the steam nozzle N has a pressure vessel 91 made of pressure glass connected to a water conduit 90 communicating with a pump P, as shown in FIG. 91 is combined with an electromagnetic wave generator 92 that generates high-frequency electromagnetic waves so that water in the pressure vessel 91 is heated by irradiation of the electromagnetic waves by the electromagnetic wave generator 92, and water vapor generated thereby is supplied to the pressure vessel 91. A water vapor conduit 94 connected via a pressure regulator 93 guides the water vapor nozzle N and ejects it from the nozzle N.

The embodiment of the method for oily reduction of plastic waste material according to the present invention will be described in detail by using the oil reduction processing apparatus configured as described above. The plastic waste material is pushed into the heating furnace a from the supply port b by the operation of the screw 201, heated by a heating means such as an electric heater f, and heat treatment by irradiation of far infrared rays from the heated far infrared ray generating material h. In the process, steam heated from the steam nozzle N is blown, and hydrogen (H ₂ ) and dioxide are generated from carbon monoxide (CO) and steam (H ₂ O) generated from the plastic waste material that is heated and melted. carbon (CO ₂₎ to perform the water gas shift reaction as the first step of generating a hydrogen arise by the water gas shift reaction, plastic waste Synthesizing hydrocarbons from a come carbon monoxide and hydrogen generated from the _{(2n + 1) H 2 +} nCO → CnH 2 n + 2 + nH 2 O
The synthesis reaction of this FT method is carried out as the second stage using hydrogen in the reaction of the Fischer-Tropsch method (FT method). Carbon dioxide (CO ₂ ) generated by the water gas shift reaction reacts with the carbide in the heating furnace (C + CO ₂ → 2CO) to generate carbon monoxide, and promotes the water gas shift reaction and the FT method reaction.

  The hydrogen produced by the water gas shift reaction in the first stage is collected in a reaction furnace e connected to the upper part of the heating furnace a by using its low specific gravity, and rises there. The synthetic reaction by the FT method of carbon monoxide and hydrogen generated by heat treatment of the plastic waste material is efficiently performed in the reaction furnace e, and the hydrocarbon gas generated thereby is extracted in the extraction duct j. It is extracted and guided to the cooling bath 100, cooled, liquefied and oiled.

At this time, the lattice m made of an iron material provided in the opening 50 of the reaction furnace e functions as a catalyst for the water gas shift reaction. Also, after contacting with the vaporized gas of the polymer that is decomposed into high-molecular fats and oils components by irradiation with far-infrared rays, this is cooled and liquefied, attached as tar and collected, and then the bottom of the heating furnace a It is dripped toward the surface and acts to be decomposed again.
Further, the plastic waste material is vaporized and separated by the oil and fat component by heating and melting, and the carbonization is promoted to be generated into the carbide and taken out as the carbide from the outlet c.

  The plastic waste material liquefaction apparatus according to the present invention can be used as it is as a plastic waste material carbonization treatment apparatus because the remaining plastic waste material obtained by vaporizing and separating the oil and fat components by heat treatment becomes carbide and discharged from the discharge port.

F Machine frame F 'Support frame L Supply device N Steam injection nozzle P Pump a Heating furnace a' Cylindrical body b Supply port c Discharge port d Agitator e Reactor f Electric heater g Heat insulation material h Infrared generator j Extraction duct k Cooling device m Grid m ′ Unit grid s Space 10 Iron plate 100 Cooling tank 101 Oil / water separation tank 11 Opening port 12 Assembly seat 13 14 Cover plate 15 Abutment 201 Screw 202 Hopper 203 Feed pipe 30 Discharge pipe 31 Discharge screw 32 Discharge cylinder 40 Rotating shaft 41 Blade plate 50 Opening portion 80 Porous iron plate 81 Mounting portion 9 Water vapor generating device 90 Water guide tube 91 Pressure vessel 92 Electromagnetic wave generator 93 Pressure regulator 94 Water vapor conduit

Claims (6)

Plastic waste including the process of heat-treating plastic waste in a heating furnace to decompose and melt, and evaporating the vaporized gas of the generated fat and oil to the cooling device through the duct, cooling it, liquefying it, and converting it to oil and fat In the oil reduction method of the above, in the process of heat treatment of the plastic waste material in the heating furnace, heated steam is blown into the heating furnace and injected from the heated steam and carbon monoxide generated by heating and melting the plastic waste material. Then, using a lattice made of iron material not subjected to surface treatment such as iron oxide or galvanization installed in a heating furnace as a catalyst, a water gas shift reaction of CO + H ₂ O → H ₂ + CO ₂ is performed to generate hydrogen, and then into the heating furnace In the presence of hydrogen, this Fischer-Tropsis with carbon monoxide generated by heating and melting plastic waste Synthesis of hydrocarbons by reaction of law, and occur come utilized in degradation of the polymer of the polymeric hydrocarbon, Yuka reduction method for a plastic waste, which comprises Yuka reducing the plastic waste in fats and oils.   Heat treatment of plastic waste material in the heating furnace performed in the presence of hydrogen generated by the water gas shift reaction generated by the water vapor injection in the heating furnace, the temperature in the reaction furnace does not exceed 400 ° C. An oil reduction treatment method for plastic waste material, which is carried out by controlling the temperature so that the furnace surface temperature on the inside of the furnace maintains 250 ° C. or higher at which the plastic material is melted. The water vapor blown and injected into the heating furnace uses water that has been heated by irradiation with high-frequency electromagnetic waves before being injected into the heating furnace, and does not exceed 5 wt% of the plastic waste material that is put into the heating furnace. A method for oily reduction treatment of plastic waste, characterized in that the amount of water in the range is steam and the pressure in the furnace does not exceed ² kgf / cm ² and is continuously or continuously injected over a certain period of time.   A heating furnace in which a far-infrared ray generating material that emits far-infrared rays by heating is provided on the inner surface side with a heat insulating material and heating means on the outer peripheral side is formed in a cylindrical shape, and a plastic waste material supply port is provided on one end side in the axial direction A carbide outlet is opened on the other end side in the axial direction, and an agitator that transports the charged plastic waste material from the one end side to the other end side is carbonized while stirring. Then, the gasification gas generated from the plastic waste material that has been charged and melted by heating is led to the cooling device by an extraction duct that communicates with the heating furnace, and cooled and liquefied to oily and reduce to oils and fats. The cylindrical heating furnace is formed in a cylindrical shape that is long in the axial direction, and an opening is formed on the upper surface side along the axial direction, and the lower surface side is opened by an iron material at the opening. Insulate the outer periphery A reaction furnace to be coated with is attached and a grid made of iron material not subjected to surface treatment such as galvanization as a catalyst for the water gas shift reaction is disposed at the connection site, and approaches to the one end side of this reaction furnace A plastic waste material liquefaction reduction processing apparatus characterized in that a steam injection nozzle for injecting steam into a heating furnace is installed at a part, and an extraction duct is connected to and communicated with the part close to the other end. .   In the plastic waste oil reduction treatment apparatus, an agitator pivoted in a cylindrical heating furnace is formed of an iron plate not subjected to surface treatment such as galvanization or a stainless steel iron plate. Oil reduction processing equipment.   In the oil waste reduction treatment apparatus for plastic waste material, the inner wall surface of the duct-shaped reaction furnace provided to be connected to the heating furnace on the upper surface side of the heating furnace is an iron plate not subjected to a surface treatment such as galvanization or a stainless steel iron plate. An oil reduction treatment apparatus for plastic waste material, characterized by comprising.

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