WO2024048821A1

WO2024048821A1 - Pyrolysis apparatus

Info

Publication number: WO2024048821A1
Application number: PCT/KR2022/013246
Authority: WO
Inventors: 김병국
Original assignee: 주식회사 선진에너지
Priority date: 2022-09-02
Filing date: 2022-09-05
Publication date: 2024-03-07
Also published as: KR20240032499A

Abstract

Disclosed is a pyrolysis apparatus comprising: a pyrolysis housing for providing a space to which a polymer compound is introduced; a heating means which is configured at the inner lower side of the pyrolysis housing, and provides heat to the inside of the pyrolysis housing so that the polymer compound is pyrolyzed; and a gas moving means which is configured communicably at the inner upper side of the pyrolysis housing, and allows gas generated during the pyrolysis to move towards a wax separation means or an extractor.

Description

pyrolysis device

The present invention relates to a pyrolysis device, and more specifically, to produce an alternative energy source by putting high molecular compounds such as waste vinyl, waste plastic, or highly pathogenic waste into a pyrolysis device and decomposing them into low molecules through heat in a vacuum state. This relates to a pyrolysis device that can separate high boiling point wax generated during the production of alternative energy sources and then input and remove it from the pyrolysis device.

As life becomes more modern, livestock farming in the factory system and discarded polymer plastics are adding to environmental pollution. In particular, when highly pathogenic livestock diseases occur, they are all buried, causing serious soil and water pollution and a high risk of disease recurrence.

Accordingly, recently, a method has been disclosed to pyrolyze waste such as highly pathogenic livestock or polymer compounds such as waste vinyl or waste plastic to use them as alternative fuel.

In a conventional pyrolysis device, after adding a polymer compound to the pyrolysis device, the polymer compound is heated to 250 to 480 degrees to activate the molecules by increasing the disorder (entropy) rather than the internal energy (enthalpy) of the compound through an endothermic reaction. During thermal decomposition, weak bonds are broken to create new low-molecular-weight (C3-C38) substances, and the gas generated during the thermal decomposition is cooled and condensed by a plurality of extraction devices at the rear end of the thermal decomposition device. Distillation and separation processes are carried out. This is implemented to separate high-quality oil from the gas, and the gas delivered from the extraction device is combusted and exhausted to the outside by the gas combustion device configured at the rear end of the extraction device.

However, in the conventional pyrolysis device, the heating means that provides heat to the pyrolysis device has a structure in which a plurality of heating pipes are arranged along the circumferential direction while penetrating from one side in the longitudinal direction of the pyrolysis housing having a cylindrical structure to the other side. The length of the pipe must be long, so the work of penetrating the heating pipe through the pyrolysis housing is very complicated, and maintenance is also inconvenient due to structural complexity.

In addition, in the conventional pyrolysis device, the pyrolysis tube that provides the pyrolysis space where pyrolysis occurs by the radiant heat of the heating pipe simply has a cylindrical shape, so the length and volume of the pyrolysis tube change when thermal expansion occurs due to the radiant heat of the heating pipe. There is a problem in that the cohesion and sealing force of the pyrolysis housing components are reduced and the pyrolysis efficiency is reduced.

In addition, in the conventional pyrolysis device, only an insulating material to insulate the internal temperature of the pyrolysis tube is filled between the pyrolysis tube of the pyrolysis housing and the housing body covering the pyrolysis tube, so when used for a long time, the weight of the pyrolysis tube applied by the insulating material increases. As a result, the volume of the insulating material is reduced, which causes the insulating function to deteriorate, thereby reducing the pyrolysis efficiency of the pyrolysis tube.

In addition, in the conventional pyrolysis device, the gas generated during pyrolysis is supplied to a plurality of extraction devices configured at the rear of the pyrolysis device, and high-quality oil is separated through distillation and separation processes. The gas generated during pyrolysis has a high boiling point. Since it contains wax and easily hardens into a high boiling point substance under the process conditions of moving from the pyrolysis device to the extraction device, the components of the gas processing means are clogged, causing a problem in that it takes a lot of time and man-hours to remove the wax.

[Prior art literature]

(Patent Document 0001) Registered Patent No. 10-2136200

(Patent Document 0002) Registered Patent No. 10-2136201

(Patent Document 0003) Publication Patent No. 10-2019-0126739

(Patent Document 0004) Publication Patent No. 10-2019-0126740

Therefore, the purpose of the present invention is that the heating means that provides heat to the pyrolysis device is composed of a plurality of explosion-proof heaters arranged along the longitudinal direction while penetrating from one side in the width direction of the pyrolysis housing to the other side, so that the length of the explosion-proof heater is shortened to penetrate the pyrolysis housing. The goal is to provide a pyrolysis device that simplifies the work and simplifies structural complexity to facilitate maintenance.

In addition, the purpose of the present invention is to ensure that the pyrolysis tube of the pyrolysis housing, which is thermally expanded by a heating means, has concavo-convex wrinkles at regular intervals in the longitudinal direction to minimize changes in length and volume due to thermal expansion, thereby improving the cohesion of the pyrolysis housing components and The aim is to provide a thermal decomposition device that can prevent the sealing force from being reduced.

In addition, the object of the present invention is to provide a pyrolysis device that can minimize heat loss in the pyrolysis tube by constructing an insulating support pipe that supports the pyrolysis tube with an insulating material between the pyrolysis tube and the housing body of the pyrolysis housing and blocks heat conduction of the pyrolysis tube. is to provide.

In addition, the purpose of the present invention is to configure a wax separation means at the rear of the pyrolysis device, collect the high boiling point wax of the gas generated during pyrolysis by the wax separation means, and then insert it into the pyrolysis tube and remove it, thereby extracting the high boiling point wax. The aim is to provide a pyrolysis device that can solve the clogging problem of the device.

For this purpose, according to the present invention, a pyrolysis housing providing a space into which a polymer compound is introduced; A heating means configured at the inner lower side of the pyrolysis housing and providing heat to the inside of the pyrolysis housing to thermally decompose the polymer compound; and a gas moving means configured to communicate with the inner upper side of the pyrolysis housing and allowing gas generated during pyrolysis to move toward the wax separation means or extraction device.

Here, the pyrolysis housing includes a cylindrical housing body with both ends open; An opening/closing door rotatably configured at one end of the housing body to open and close the interior of the housing body; A cover panel covering the other end of the housing body; A pyrolysis tube located inside the housing main body and providing a pyrolysis space where the polymer compound is introduced and the polymer compound is pyrolyzed; Holes are formed on the lower side of one side of the housing main body and the pyrolysis tube at regular intervals along the length of the housing main body and the pyrolysis tube, and a heating means is inserted through from the outside of the housing body into the inside of the pyrolysis tube to provide heat to the pyrolysis tube. Heating means insertion hole; An insulating support pipe formed on the inner peripheral surface of the housing main body, supporting the outer peripheral surface of the pyrolysis tube, and preventing heat from the pyrolysis tube from being released and lost to the outside; And it is preferable to include an insulating material that is filled with the insulating support pipe between the inner peripheral surface of the housing body and the outer peripheral surface of the pyrolysis tube to prevent heat from the pyrolysis tube from being released and lost to the outside.

In addition, it is preferable that the pyrolysis tube has concavo-convex wrinkles formed at regular intervals along the longitudinal direction.

In addition, the insulation support pipe is an insulation pipe body having a cylindrical shape with both ends open at a predetermined length, an insulation material corresponding to the inner peripheral surface of the insulation pipe body and formed in a concave-convex structure to cover the outer peripheral surface of the pyrolysis tube or the outer peripheral surface of the pyrolysis tube. The first concave-convex surface supporting the outer circumferential surface, hollow spaces of a predetermined volume are arranged continuously in a specific pattern from the first concave-convex surface to the outer circumferential surface of the insulating pipe body, thereby delaying the transfer of heat transferred to the first concave-convex surface toward the outer circumferential surface to insulate the heat. It corresponds to the outer peripheral surface of the insulation hollow part and the insulation pipe main body that provides the function, and is formed in a concave-convex structure with a lower level difference than the first support concave-convex surface. It supports the inner peripheral surface of the thermal decomposition housing or the inner peripheral surface of the insulation material covered on the inner peripheral surface of the thermal decomposition housing. 2. It is desirable to include a support convex surface.

In addition, the wax separation means is located on one side of the pyrolysis device and has a cylindrical shape laid horizontally, and creates a space of a predetermined volume through which gas flows into one side from the gas moving means of the pyrolysis device and is then discharged while moving toward the bottom. A deceleration chamber that slows down the gas flowing in at high speed through diffusion and stagnation; It is connected to one side of the deceleration chamber in the form of a vertically standing cylindrical body, and provides a space of a certain volume in which gas whose speed is reduced in the deceleration chamber flows into the upper part of one side and then moves toward the lower part of the other side and is discharged and moved to the extraction device. a filtration chamber that allows foreign substances and high boiling point wax in the gas to be filtered and collected at the bottom through a ceramic filter installed inside; It extends longitudinally from the bottom of the filtration chamber to the bottom of the inside of the pyrolysis tube of the pyrolysis device, and supplies the high boiling point wax collected in the filtration chamber to the wax tray configured at the bottom of the inside of the pyrolysis tube so that the high boiling point wax is removed by pyrolysis in the pyrolysis tube. wax transfer pipe; and a wax transfer pump configured between the filtration chamber and the wax transfer pipe to allow high boiling point wax to flow into the pyrolysis tube.

1 is a diagram showing the overall configuration of a continuous polymer pyrolysis system according to a preferred embodiment of the present invention;

2 to 9 are diagrams each showing the configuration of a thermal decomposition device in the thermal decomposition system of the present invention; and

Figure 10 is a diagram showing the configuration of the neutralization device in the thermal decomposition system of the present invention.

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

As shown in FIGS. 1 to 10, the thermal decomposition system according to a preferred embodiment of the present invention includes a thermal decomposition device 100, a thermal decomposition device 100, or a wax separation means 200 described later, which heats and thermally decomposes a polymer compound. The extraction device 300, which distills the gas moving from the gas and separates extracts such as high-quality oil, is configured between the pyrolysis device 100 and the extraction device 300, and contains high boiling point wax among the gas moved to the extraction device 300. A wax separation means 200 that collects and separates the wax and then inputs it into the pyrolysis device 100 to be removed, a neutralization device 400 that neutralizes the acidic component in the gas moving from the extraction device 300, and a neutralization device 400. Between the gas combustion device 500 and the extraction device 300 and the neutralization device 400 or between the neutralization device 400 and the gas combustion device 500, the gas in which the acidic component has been neutralized is burned and then exhausted to the outside. A vacuum pump 600, which is configured at least in one place and moves the gas from the pyrolysis device 100 to the wax separation means 200, the extraction device 300, the neutralization device 400, and the gas combustion device 500. Includes.

The pyrolysis device 100 is a device that thermally decomposes a polymer compound by heating it in a vacuum. It is comprised of a pyrolysis housing 110 that provides a space into which the polymer compound is introduced, and an inner lower side of the pyrolysis housing 110, and includes a pyrolysis housing 110. ) It is configured to communicate with the inner upper side of the heating means 120 and the pyrolysis housing 110, which provides heat to the interior to cause the polymer compound to pyrolyze, and the gas generated during pyrolysis is connected to the wax separation means 200 or the extraction device 300. ) and a gas moving means 130 that moves toward.

The pyrolysis housing 110 has a cylindrical housing body 111 with both ends open, and is rotatably configured at one end of the housing body 111 to open and close the interior of the housing body 111. ) An opening/closing door 112 that allows the polymer compound to be introduced inside, a cover panel 113 covering the other end of the housing body 111, located inside the housing body 111, and the polymer being released through the opening/closing door 112. The pyrolysis tube 114 provides a pyrolysis space where the compound is input and the polymer compound is pyrolyzed, and the length of the housing body 111 and the pyrolysis tube 114 is located on the lower side of one side of the housing body 111 and the pyrolysis tube 114. Heating means insertion holes 115 are formed at regular intervals and allow the heating means 120 to be inserted through from the outside of the housing body 111 into the inside of the pyrolysis tube 114 to provide heat to the pyrolysis tube 114. ), the insulation support pipe 116 and the housing body 111, which are formed on the inner peripheral surface of the housing main body 111, support the outer peripheral surface of the pyrolysis tube 114, and suppress the heat of the pyrolysis tube 114 from being released and lost to the outside. ) is filled with the insulation support pipe 116 between the inner circumferential surface of the pyrolysis tube 114 and the outer circumferential surface of the pyrolysis tube 114, and includes an insulating material 117 that prevents heat from the pyrolysis tube 114 from being released and lost to the outside.

Here, it is desirable that the components of the pyrolysis housing 110 be made of a material with strong corrosion resistance and heat resistance.

A plurality of sealing members are formed at the close contact portion of the housing body 111 and the opening/closing door 112 to seal the inside of the pyrolysis tube 114 to maintain a vacuum state and suppress heat loss.

The pyrolysis tube 114 is formed with concavo-convex wrinkles 114a at regular intervals along the length, and minimizes changes in length and volume due to thermal expansion by the heat of the heating means 120. Through this, pyrolysis occurs. By preventing the binding and sealing force of components such as the housing body 111 of the housing 110, the heating means 120 inserted into the heating means insertion hole 115, and the opening/closing door 112 from being reduced, the thermal decomposition efficiency is improved. It can be improved.

The insulation support pipe 116 is intended to solve the problem of reduced insulation function that occurs when only the insulation material 117 is filled between the housing body 111 and the pyrolysis tube 114, and covers the entire outer peripheral surface of the pyrolysis tube 114. It can be supported or have a certain volume and be constructed only at certain intervals.

On the other hand, the insulation support pipe 116 is an insulation pipe body 116a having a cylindrical shape with both ends open at a predetermined length, and corresponds to the inner peripheral surface of the insulation pipe body 116a and is formed in a concavo-convex structure to form a pyrolysis pipe 114. A first support concave and convex surface (116b) supporting the outer circumference of the insulation material (117) formed as a cover on the outer circumference of the pyrolysis pipe (114), a predetermined volume from the first support convex and convex surface (116b) toward the outer circumference of the insulating pipe main body (116a). An insulating hollow portion (116d) and an insulating pipe body (116a) in which the hollow portions (116c) are continuously arranged in a specific pattern to provide an insulating function by delaying the transfer of heat transferred to the first support concave and convex surface (116b) toward the outer peripheral surface. It corresponds to the outer peripheral surface of the first support concave and convex surface (116b) and is formed in a concavo-convex structure with a lower level difference than the first support concave-convex surface (116b) to support the inner peripheral surface of the pyrolysis housing 111 or the inner peripheral surface of the insulation material 117 formed as a cover on the inner peripheral surface of the pyrolysis housing 111. It includes the second support convex surface (116e), etc.

Here, the insulation support pipe 116 is insulated through the first support concave and convex surface 116b and the second support concave and convex surface 116e being formed in a concavo-convex structure and the insulating hollow portion 116d having a plurality of hollows 116c. Compared to the pipe body 116a being formed as a flat surface, the heat transferred from the pyrolysis tube 114 to the inner circumferential surface is not directly transferred to the outer circumferential surface, but is concentrated in the uneven structure or dispersed by the hollow 116c, thereby increasing the transfer speed. It can be delayed, and thus the heat loss of the pyrolysis tube 114 can be minimized and the pyrolysis efficiency of the pyrolysis tube 114 can be improved.

In addition, in the case of the first support concave-convex surface (116b), it is formed with a higher level than the uneven step of the second support concave-convex surface (116e), so that the heat transferred to the inner peripheral surface of the insulation pipe body (116a) is transmitted to the insulation material (117) filled in the space of the concavo-convex portion. ), thereby delaying transfer to the inner peripheral surface of the insulating pipe body 116a, thereby minimizing heat loss in the pyrolysis furnace 114.

In addition, in the case of the second support unevenness (116e), it is formed with a lower level difference than the unevenness level difference of the first support unevenness (116b), so that the heat transmitted to the outer peripheral surface of the insulation pipe body (116a) is quickly absorbed into the insulation material 117, thereby providing insulation. Heat loss in the pyrolysis furnace 114 can be minimized by preventing the heat transferred to the pipe body 116a from being radiated to the outside.

The heating means 120 is installed in the lower space inside the housing body 111 and the pyrolysis tube 114 at regular intervals along the longitudinal direction of the housing body 111 through the heating means insertion hole 115 of the pyrolysis housing 110. It includes a plurality of explosion-proof heaters 121 that are arranged and provide heat to the pyrolysis space of the pyrolysis tube 114.

The explosion-proof heater 121 has a length corresponding to the length from the lower side of one side of the housing body 111 to the lower side of the other side of the pyrolysis tube 114 through the heating means insertion hole 115. ) After being inserted inside, it can be fixed to the housing body 111.

Here, the explosion-proof heater 121, for example, has a temperature range of about 1100°C and can provide a temperature of up to 1350°C in the case of an APM tube, and the heating element 123 is located in the center of the protective metal pipe 122. The heating element 123 is assembled and has a structure in which the heating element 123 is protected by supporting the insulator 124, which has good thermal conductivity and good electrical insulation at high temperatures, and is inserted in the width direction into the internal space of the pyrolysis tube 114, the heating part A non-heating part with one end extending from the part and located between the pyrolysis tube 114 and the housing main body 111, a fixing part connected to the other end of the non-heating part, and a fixing part connected to the fixing part and transmitted to the non-heating part by the heat generating part. Includes a packing flange that reduces pressure.

The gas moving means 130 is configured to communicate with the inside of the pyrolysis tube 114 and is a means for moving the gas generated in the pyrolysis space to the rear end of the pyrolysis device 100, from the outside of the housing body 111. A plurality of gas inlet pipes 131 are configured to penetrate into the inside of the pyrolysis pipe 114 to allow gas to flow in, and the gas flowing in through the gas inlet pipe 131 is transmitted through the wax separation means 200 or the extraction device 300. It includes an opening/closing valve (not shown) that opens and closes the gas transfer pipe 132 and the gas inlet pipe 131 to move toward the gas moving pipe 132.

Here, each component of the gas moving means 130 is preferably made of stainless steel or titanium, which does not corrode when in contact with gas and can withstand high temperatures.

The wax separation means 200 is configured between the pyrolysis device 100 and the extraction device 300 to collect and separate high boiling point wax from the gas moving to the extraction device 300 and then inputs it into the pyrolysis device 100. As a means for removing the pyrolysis device 100, it is positioned in a cylindrical shape laid horizontally on one side of the pyrolysis device 100, and the gas flows in to one side from the gas moving means 130 of the pyrolysis device 110 and then moves toward the bottom. A deceleration chamber 210 that causes the gas flowing in at high speed through a space of a predetermined volume to be diffused and stagnated while being discharged, and has a cylindrical shape standing vertically on one side of the deceleration chamber 210 and is connected to the deceleration chamber 210. The gas whose speed has been reduced flows into the upper part of one side and is discharged as it moves toward the lower part of the other side, providing a space of a predetermined volume in which it is moved to the extraction device 300, and removes the gas from the gas through the ceramic filter 220 installed inside. A filtration chamber 230 that allows foreign substances and high-boiling point wax to be filtered and collected at the lower end, extends longitudinally from the lower end of the filtration chamber 230 to the inner bottom of the pyrolysis tube 114 of the pyrolysis device 100 to form a filtration chamber 230. ) and a wax transfer pipe 250 and filtration chamber 230 that supply the high boiling point wax collected from the pyrolysis tube 114 to the wax tray 240 configured at the inner bottom of the pyrolysis tube 114 so that the high boiling point wax is removed by pyrolysis in the pyrolysis tube 114. ) and the wax transfer pump 260, which is configured between the wax transfer pipe 250 and allows high boiling point wax to flow into the pyrolysis tube 114.

Here, the wax tray 240 is divided into a tray body 241 having a length corresponding to the length of the pyrolysis tube 114, dividing the tray body 241 into a plurality of parts and forming a mounting wall on which the wax transfer pipe 250 is mounted ( 242) and a wax transfer pipe insertion hole 243 that allows the wax transfer pipe 250 to be inserted through one end of the tray body 241 and then mounted on the mounting wall 242.

Therefore, according to the wax separation means 200, the gas that flows into the deceleration chamber 210 at high speed from the thermal decomposition device 100 is decelerated by the space and movement passage of a predetermined volume provided by the deceleration chamber 210, and then flows into the filtration chamber. When passing through (230), the high boiling point wax contained in the gas flows down the wall of the filtration chamber (230) and the ceramic filter (220) and is separated from the gas and collected by the wax transfer pump (260). ) can be introduced into the wax tray 240 of the pyrolysis tube 114 along the wax transfer pipe 250 extending from the You can prevent it from getting clogged.

Meanwhile, in the present invention, the wax transfer pipe 250 of the wax separation means 200 is integrated with a heating pipe operated to generate heat by the explosion-proof heater 121 of the pyrolysis pipe 114, so that the high boiling point wax is deposited and solidified. It is desirable to prevent the wax transfer pipe 250 from clogging.

Here, in the heating pipe, the heating fluid charged inside is generated by the explosion-proof heater 121 of the pyrolysis pipe 114, and the heating fluid is 100 parts by weight of heat source, 20 parts by weight of liquid inert gas, and 20 parts by weight of liquid inert gas for heat conduction. It contains 3 parts by weight of powder, and the inert gas is preferably mixed with helium, argon, and xenon in a volume ratio of 1:3:1 and then mixed with the fruit in a liquefied state at absolute zero.

The fruit absorbs the heat transmitted to the heating pipe and provides a heating function by evaporating through a phase change from a liquid state to a gas state, and contains 100 parts by weight of acetone, 40 to 50 parts by weight of ethanol, and 20 to 20 parts by weight of sodium tripolyphosphate. It is preferable to include 30 parts by weight, 10 to 20 parts by weight of distilled water, 10 to 15 parts by weight of potassium dichromate, and 5 to 10 parts by weight of sodium perborate.

In addition, 20 parts by weight of inert gas is mixed with helium, argon, and xenon in a volume ratio of 1:3:1 and liquefied at absolute zero for 100 parts by weight of the fruit.

Here, when the inert gas is less than 20 parts by weight, the heat of the pyrolysis pipe 114 transmitted to the heating pipe) has a temperature of at least 300 ℃ or higher, so it is higher than the typical vaporization point of the fruits of 200 ℃ to 300 ℃. As it becomes much higher, the activation of the fruits is maximized, and the internal pressure of the heating pipe becomes too large, causing the heating pipe to break. If the inert gas exceeds 20 parts by weight, the heat of the pyrolysis tube 114 transmitted to the heating pipe) causes the fruit to rupture. Since there is a problem in that evaporation into a gaseous state is suppressed, it is better to have a limited weight portion as described above.

In addition, the inert gas is a mixture of helium, argon, and xenon at a volume ratio of 1:3:1. In the case of helium, it promotes the evaporation of the fruit due to its light weight, but the liquefaction process costs a lot of money due to its low freezing point. It is better to have the same volume ratio, and in the case of argon, it is relatively the lowest in price, so it is better to have a higher content than helium or xenon, which are expensive. Inside the heating pipe), the fruit will not explode even under high temperature and pressure and will be in a stable state. It is advisable to have the same volume ratio as above so that xenon has low thermal conductivity, so the heat generating function of the fruit is suppressed.

Therefore, by using the inert gas, the helium, argon, and xenon are mixed at a predetermined volume ratio, thereby promoting the evaporation of the fruit, maximizing the stable state inside the heating pipe, and maximizing the heat generation function.

The heat conduction powder includes a first filler having a first average particle diameter, a second filler having a second average particle diameter, and a third filler having a third average particle diameter, and the first average particle diameter value is 10 to 30㎛, with the remaining It is larger than the average particle diameter values, the second average particle diameter divided by the first average particle diameter is 0.17 to 0.26, the third average particle diameter divided by the first average particle diameter is 0.09 to 0.11, and the first average particle diameter is 0.09 to 0.11. The volume resistance of the filler, the second filler, and the third filler is 104Ωcm or more, the average value of the minor diameter/major axis of the first filler, the second filler, and the third filler is 0.6 to 0.8, and the sum/th of the mass of the second filler is The percentage of the sum of the masses of the first filler is 11 to 16, or the percentage of the sum of the masses of the third filler / the sum of the mass of the first filler is 4.2 to 5.2, and the first, second and third fillers are alumina (Al2O3), nitride. From the group consisting of boron (BN), aluminum nitride (AlN), silicon nitride (Si3N4), magnesia (MgO), beryllia (BeO), zinc oxide (ZnO), silicon carbide (SiC), zirconia (ZrO2) and mixtures thereof. is selected.

Here, if the heat conduction powder is less than 3 parts by weight, it is adhered to the inner circumferential surface of the heating pipe by the energy of the fruit that absorbs the heat transmitted to the heating pipe and generates heat, so that the heat of the fruit is quickly transmitted to the surface of the heating pipe. This function is performed poorly, so the insulation or heating function of the wax transfer pipe 250 using the heat generated by the heating pipe is suppressed, and if the heat conduction powder exceeds 3 parts by weight, it settles at the bottom of the heating pipe and does not retain the fruit even if it evaporates. Since there is a problem in that the heating function of the heating pipe is poor as it does not move to the upper end of the heating pipe along the , it is better to have a limited weight portion as described above.

Hereinafter, the thermal decomposition process of the thermal decomposition device 100 and the wax separation means 200 according to a preferred embodiment of the present invention will be described.

First, the polymer compound, which is the subject of the thermal decomposition process, is continuously introduced into the thermal decomposition tube 114 of the thermal decomposition apparatus 100.

Thereafter, a vacuum state is maintained in the pyrolysis device 100 by the vacuum pump 600 or vacuum means described later.

Thereafter, high heat is provided to the thermal decomposition pipe 114 of the thermal decomposition device 100 by the heating means 120, and the polymer compound introduced into the thermal decomposition space is thermally decomposed.

Thereafter, the gas flowing in from the pyrolysis device 100 at high speed by the deceleration chamber 210 of the wax separation means 200 is decelerated by the space and movement passage of a predetermined volume provided by the deceleration chamber 210, and then is transferred to the filtration chamber. It flows into (230).

Thereafter, the high boiling point wax contained in the gas flows down along the wall of the filtration chamber 230 and the ceramic filter 220 by the filtration chamber 230 of the wax separation means 200 and is separated and collected from the gas.

Thereafter, the high boiling point wax separated and collected in the filtration chamber 230 by the wax transfer pump 260 of the wax separation means 200 is transferred to the pyrolysis tube 114 along the wax transfer pipe 250 extending to the pyrolysis tube 114. After flowing into the wax tray 240, it is removed by thermal decomposition.

Thereafter, the gas from which the high boiling point wax is separated by the filtration chamber 230 of the wax separation means 200 is moved to the extraction device 300, and the extract, that is, oil, is separated from the gas.

Therefore, according to the pyrolysis device 100, the heating means 120 for providing heat to the pyrolysis housing 110 penetrates from one side in the width direction of the pyrolysis housing 110 to the other side, and a plurality of explosion-proof heaters 121 are arranged along the longitudinal direction. ), the length of the explosion-proof heater 121 can be shortened to simplify the work of penetrating the pyrolysis housing 110 and the structural complexity can be simplified to facilitate maintenance.

In addition, the pyrolysis tube 114 of the pyrolysis housing 110, which is thermally expanded by the heating means 120, is formed with uneven wrinkled portions 114a at regular intervals in the longitudinal direction, resulting in thermal expansion of the pyrolysis tube 114. By minimizing changes in length and volume, the binding and sealing force of the pyrolysis housing 110 can be prevented from being reduced.

In addition, between the pyrolysis tube 114 of the pyrolysis housing 110 and the housing main body 111, there is an insulating material 117 and an insulation support tube 116 that supports the pyrolysis tube 114 and blocks heat conduction of the pyrolysis tube 114. ) is configured, the heat loss of the pyrolysis tube 114 can be minimized.

In addition, a wax separation means 200 is configured at the rear end of the pyrolysis device 100, and the high boiling point wax of the gas generated during pyrolysis is collected by the wax separation means 200 and then introduced into and removed from the pyrolysis tube 114. , it is possible to solve the problem of clogging of the extraction device 300, etc. by high boiling point wax.

Meanwhile, the extraction device 300 according to the present invention is a device that separates high-quality oil by distilling the gas moved from the gas moving means 130 or the wax separating means 200 of the thermal decomposition device 100. Carbon removal filter means 310, which receives gas from the gas transfer pipe 132 of the means 130 or the filtration chamber 230 of the wax separation means 200 and removes carbon and residues of polymer compounds in the gas, carbon removal. Banca oil extraction means 320 receives gas from which carbon and residues of polymer compounds have been removed from the filter means 310 and extracts banca oil from the gas, and supplies gas from which banca oil has been extracted from the banca oil extraction means 320. It includes a diesel extraction means 330 for receiving and extracting diesel from the gas, and a gasoline extraction means 340 for receiving gas from which the diesel is extracted from the diesel oil extraction means 330 and extracting gasoline from the gas.

Here, the extraction device 300 cools the gas supply pipe through which gas is supplied from the gas transfer pipe 132 or the filtration chamber 230, which is a component of the front end, by air cooling, and then cools the gas supplied through the gas supply pipe by air cooling. It may be composed of a reaction tank for extracting the extract in the process of condensing the gas by cooling it, and a gas outlet pipe for supplying the gas from the reaction tank to the subsequent constituent means, and may have a known configuration. Therefore, detailed description will be omitted.

Therefore, according to the extraction device 300, banca oil, diesel fuel, gasoline, etc. can be extracted from the gas of the pyrolyzed polymer compound by distillation and recycled as an alternative fuel.

The neutralization device 400 is a device that neutralizes acidic components in the gas moving from the extraction device 300 and suppresses the generation of dioxins during combustion by the gas combustion device 500, and is connected to the rear end of the extraction device 300. The neutralizing gas supply pipe 410, through which the gas in which the extract was extracted, is supplied, has a vertical cylindrical structure and is filled with a certain level of cooling water (not shown) in the hollow, and the neutralizing gas supply pipe 410 is located at the lower part of the hollow. A neutralization tank 420 is penetrated to allow gas to be discharged and dissolved in cooling water (not shown). It is located on one side of the neutralization tank 420 and has a cylindrical structure, and a predetermined amount of iron (not shown) is filled in the hollow body for neutralization. When the coolant (not shown) in which the gas is dissolved circulates from the tank 420, hydrochloric acid and iron (not shown) in the gas come into contact with it and react with iron chloride to neutralize the hydrochloric acid component, including a chlorination reaction tank (430) and a neutralization tank ( Cooling water (420) surrounds the neutralization gas supply pipe 410 from the upper end of the neutralization tank 420, penetrates to the hollow lower part of the neutralization tank 420, and moves from the neutralization tank 420 to the chlorination reaction tank 430, where the hydrochloric acid component is neutralized. (not shown) is configured to surround the coolant circulation supply pipe 440 at the upper end of the neutralization tank 420 and the coolant circulation supply pipe 440 for circulating inside the neutralization tank 420, so that the coolant of the neutralization tank 420 ( (not shown) and a neutralized gas discharge pipe 450 that allows the gas discharged to neutralize the hydrochloric acid component to be moved to the subsequent process means.

Here, a plurality of neutralization devices 400 are arranged in series so that the neutralization process can be performed multiple times, thereby improving neutralization efficiency.

In addition, a neutralizing gas supply pipe 410 through which gas is supplied is formed inside the cooling water circulation supply pipe 440 through which cooling water (not shown) circulates, so that the gas moves to the neutralization tank 420 along the neutralizing gas supply pipe 410. By allowing the gas to be cooled by cooling water (not shown), the amount of gas discharged and dissolved in the cooling water (not shown) can be increased and neutralization efficiency can be improved.

Here, the cooling water circulation supply pipe 440 allows the cooling water (not shown) to move in a zigzag manner by a zigzag partition wall in the area where the neutralizing gas supply pipe 410 is installed, so that the cooling water (not shown) and the neutralizing gas supply pipe It is better to increase the contact area or time of (410) to improve the cooling efficiency of the gas.

In addition, when the neutralizing gas discharge pipe 450 is configured to communicate with the upper end of the neutralization tank 420, the cooling water circulation supply pipe 440 and the neutralizing gas supply pipe 410 are supported on the upper end of the neutralization tank 420 through a structure. , the assembly configuration and maintenance of the neutralization device 400 can be facilitated.

Here, it is preferable that a known cooling cycle or cooling trap is connected to the neutralization tank 420 or the chlorination reaction tank 430 to maintain the cooling state of the coolant (not shown), and through this, neutralization efficiency is improved. It's good.

Additionally, the coolant (not shown) charged in the neutralization tank 420 may have a configuration in which the charge amount is adjusted or exchanged depending on acidity.

In addition, iron (not shown) charged in the chlorination reaction tank 430 is, for example, a chlorination reaction tank ( 430), so that maintenance such as replacement can be easily performed depending on the chloride degree of iron (not shown).

Hereinafter, the neutralization process of the neutralization device 400 according to a preferred embodiment of the present invention will be described.

First, the gas generated in the pyrolysis device 100 is discharged into the cooling water (not shown) of the neutralization tank 420 through the neutralization gas supply pipe 410 in a state in which extracts such as oil are separated by the extraction device 300. and dissolved.

Thereafter, as the cooling water (not shown) circulates to the chlorination reaction tank 430 on one side of the neutralization tank 420, the iron (not shown) charged in the chlorination reaction tank 430 and the hydrochloric acid component of the cooling water (not shown) contact and The reaction neutralizes the hydrochloric acid component.

Thereafter, coolant (not shown) in which the hydrochloric acid component has been neutralized is supplied to the interior of the neutralization tank 420 through the coolant circulation supply pipe 440.

Thereafter, the gas generated in the neutralization tank 420 is moved to the gas combustion device 500 through the neutralization gas discharge pipe 450.

Therefore, according to the neutralization device 400, after the extract is extracted and before it is supplied to the gas combustion device 500 and burned, the hydrochloric acid component in the gas is dissolved in cooling water (not shown) and reacts with iron (not shown) to be neutralized. Through the process, the hydrochloric acid component of the gas to be burned in the gas combustion device 500 is reduced through a neutralization process, thereby suppressing the generation of dioxins during combustion of the gas combustion device 500.

The gas combustion device 500 is a device that receives gas with neutralized acidic components from the neutralizing gas discharge pipe 450 of the neutralization device 400, burns it, and then exhausts it to the outside. The gas flows in from the neutralizing gas discharge pipe 450. , a combustion furnace 510 that provides a space for combustion and exhaust, and a combustion means 520 configured inside the combustion furnace 510 to burn gas.

The combustion furnace 510 is a combustion chamber that provides a space in which the gas flowing in from the neutralizing gas discharge pipe 450 is burned, and may have a cylindrical structure of a predetermined height, and may have a gas inlet pipe through which the gas flows and outside air from the outside. It is better to have an inflow pipe for outside air at the lower end, and a spiral guide on the inner wall of the hollow that allows outside air and gas to move in a spiral shape to maximize combustion efficiency.

The combustion means 520 is a means for generating a flame inside the combustion furnace 510 to combust gas, and includes a communication pipe at the lower end of the combustion furnace 510 through which the gas inlet pipe and the outside air inflow pipe communicate, A combustion circle connected to the end of the communication pipe and installed in an annular shape, a plurality of injection nozzles that protrude from the upper side of the combustion circle to be inclined at a predetermined angle toward the inner periphery and allow gas and outdoor air to be sprayed, It is located on one side of the combustion circle and consists of a spark plug that generates a flame and causes the gas and external air injected from the injection nozzle to combust.

Therefore, according to the gas combustion device 500, the aromatic elements contained in the gas of the polymer compound moved to the combustion furnace 510 can be burned by the combustion means 520 and then discharged to the outside.

The vacuum pump 600 is configured at least one of between the extraction device 300 and the neutralization device 400 or between the neutralization device 400 and the gas combustion device 500, and the gas of the pyrolysis device 100 separates wax. It is a device that moves to the means 200, the extraction device 300, the neutralization device 400, and the gas combustion device 500, and may have a known configuration, so detailed description will be omitted.

Meanwhile, according to the vacuum pump 600, it is located at least one of between the extraction device 300 and the neutralization device 400 or between the neutralization device 400 and the gas combustion device 500, and more preferably, the extraction device 400 By being located between the device 300 and the neutralization device 400, when the vacuum pump 600 is located between the neutralization device 400 and the gas combustion device 500, coolant (not shown) in addition to the gas of the neutralization device 400 is used. It is better to prevent the conventional problem of lowering gas combustion efficiency by moving to the gas combustion device 500.

Meanwhile, according to the present invention, it is preferable that a known purification device is installed between the thermal decomposition device 100 and the wax separation means 200 to filter foreign substances generated when polymer compounds are incinerated during thermal decomposition.

In addition, according to the present invention, it is preferable that an oil trap and a moisture trap are additionally provided at the rear end of the neutralization device 400 to remove oil and moisture in the gas.

In addition, according to the present invention, at the beginning of the pyrolysis process, there is a problem in that the polymer compound is incinerated without being pyrolyzed and generates a lot of carbon or wax, so the extraction device 300, excluding the neutralization device 400, is used as the combustion gas device 500. The configuration directly connected to may be simply configured so that the gas at the beginning of the process can be treated separately.

Hereinafter, the thermal decomposition process of the continuous polymer thermal decomposition system according to a preferred embodiment of the present invention will be described.

First, a polymer compound, which is the subject of the pyrolysis process, is introduced into the pyrolysis tube 114 of the pyrolysis housing 110 of the pyrolysis device 100.

Thereafter, a vacuum state is maintained in the thermal decomposition device 100, wax separation means 200, extraction device 300, and neutralization device 400 by the vacuum pump 600 or vacuum means.

Thereafter, the gas inside the thermal decomposition space generated during thermal decomposition of the polymer compound is moved to the wax separation means 200 to separate the wax from the gas.

Thereafter, the gas from which the wax has been separated or the gas inside the pyrolysis space is moved to the extraction device 300, and the extract, that is, the oil, is separated from the gas.

Thereafter, the gas from which the extract is separated is moved to the neutralization device 400, and the hydrochloric acid component in the gas is neutralized by reacting with iron (not shown) while dissolved in cooling water (not shown).

Thereafter, the gas with the reduced hydrochloric acid content is moved to the gas combustion device 500 and is oxidized and discharged to the outside with the aromatic elements with a bad smell removed.

Therefore, according to the present invention, by thermally decomposing waste such as highly pathogenic livestock or high molecular compounds such as waste vinyl or waste plastic, the outbreak of infectious diseases caused by highly pathogenic livestock is prevented and alternative fuel is extracted from waste vinyl or waste plastic to improve recyclability. You can do it.

According to the present invention, the heating means that provides heat to the pyrolysis device is composed of a plurality of explosion-proof heaters arranged along the longitudinal direction while penetrating from one side in the width direction of the pyrolysis housing to the other side, and the length of the explosion-proof heater is shortened to penetrate the pyrolysis housing. It can simplify work and simplify structural complexity to facilitate maintenance.

In addition, the pyrolysis tube of the pyrolysis housing, which is thermally expanded by the heating means, has concavo-convex wrinkles at regular intervals in the longitudinal direction to minimize changes in length and volume due to thermal expansion, thereby reducing the binding and sealing force of the pyrolysis housing components. It can be prevented.

In addition, an insulating support pipe is formed between the pyrolysis tube of the pyrolysis housing and the housing body, along with an insulating material, to support the pyrolysis tube and block heat conduction of the pyrolysis tube, thereby minimizing heat loss in the pyrolysis tube.

In addition, a wax separation means is provided at the rear of the pyrolysis device, and the high boiling point wax of the gas generated during pyrolysis is collected by the wax separation means and then introduced into and removed from the pyrolysis tube, thereby eliminating the problem of clogging of the extraction device by high boiling point wax. It can be resolved.

Claims

A pyrolysis housing (110) that provides a space into which the polymer compound is introduced;

Heating means 120 configured at the inner lower side of the pyrolysis housing 110 and providing heat to the inside of the pyrolysis housing 110 to thermally decompose the polymer compound; and

Characterized in that it is configured to be able to communicate with the inner upper side of the pyrolysis housing 110 and includes a gas moving means 130 that moves the gas generated during pyrolysis toward the wax separation means 200 or the extraction device 300. Pyrolysis device.
The method of claim 1, wherein the pyrolysis housing 110 is,

A housing body 111 having a cylindrical shape with both ends open;

An opening/closing door 112 rotatably configured at one end of the housing body 111 to open and close the interior of the housing body 111;

A cover panel 113 covering the other end of the housing body 111;

A pyrolysis tube 114 located inside the housing main body 111 and providing a pyrolysis space where the polymer compound is introduced and the polymer compound is pyrolyzed;

Holes are formed on the lower side of one side of the housing body 111 and the pyrolysis tube 114 at regular intervals along the length of the housing main body 111 and the pyrolysis tube 114, and the heating means 120 is installed on the outer side of the housing main body 111. a heating means insertion hole 115 that is inserted through into the inside of the pyrolysis tube 114 to provide heat to the pyrolysis tube 114;

An insulating support pipe 116 that is formed on the inner peripheral surface of the housing body 111, supports the outer peripheral surface of the pyrolysis tube 114, and suppresses heat of the pyrolysis tube 114 from being released and lost to the outside; and

An insulating material 117 is filled between the inner circumferential surface of the housing body 111 and the outer circumferential surface of the pyrolysis tube 114 together with the insulating support tube 116 to prevent heat from the pyrolysis tube 114 from being released and lost to the outside. A thermal decomposition device characterized by:
The method of claim 2, wherein the pyrolysis pipe 114 is,

A thermal decomposition device characterized in that uneven wrinkles (114a) are formed at regular intervals along the longitudinal direction.
The method of claim 2, wherein the insulation support pipe 116 is,

An insulating pipe body (116a) having a cylindrical shape with both ends of a predetermined length open;

A first support concave-convex surface (116b) that corresponds to the inner peripheral surface of the insulation pipe body (116a) and is formed in a concave-convex structure to support the outer peripheral surface of the thermal decomposition pipe (114) or the outer peripheral surface of the insulation material (117) formed as a cover on the outer peripheral surface of the thermal decomposition pipe (114). ;

Hollows (116c) of a predetermined volume are continuously arranged in a specific pattern from the first support concave and convex surface (116b) toward the outer peripheral surface of the insulating pipe body (116a), so that the heat transferred to the first support concave and convex surface (116b) is transferred toward the outer peripheral surface. An insulating hollow portion (116d) that provides an insulating function by delaying the insulation; and

The insulation material 117 corresponds to the outer peripheral surface of the insulation pipe body 116a and is formed in a concavo-convex structure with a lower level difference than the first support concave-convex surface 116b, and covers the inner peripheral surface of the pyrolysis housing 111 or the inner peripheral surface of the pyrolysis housing 111. ) A thermal decomposition device comprising a second support concave and convex surface (116e) supporting the inner peripheral surface of the pyrolysis device.
The method of claim 2, wherein the wax separation means (200) is,

It is located on one side of the pyrolysis device 100 and has a cylindrical shape laid horizontally, and the gas flows into one side from the gas moving means 130 of the pyrolysis device 110 and then moves toward the bottom and discharges a predetermined volume. A deceleration chamber 210 that causes the gas flowing at high speed through the space to spread and stagnate and decelerate;

It has a cylindrical shape and is connected to one side of the deceleration chamber 210, and the gas whose speed is reduced in the deceleration chamber 210 flows into the upper part of one side and then moves toward the lower part of the other side and is discharged to the extraction device 300. A filtration chamber (230) that provides a predetermined volume of space to be moved and allows foreign substances and high boiling point wax in the gas to be filtered and collected at the lower end through a ceramic filter (220) installed therein;

The high boiling point wax collected in the filtration chamber 230 extends longitudinally from the lower end of the filtration chamber 230 to the inner bottom of the pyrolysis tube 114 of the pyrolysis device 100 and is formed at the inner bottom of the pyrolysis tube 114. A wax transfer pipe 250 that supplies the tray 240 to remove high boiling point wax by thermal decomposition in the pyrolysis pipe 114; and

A pyrolysis device comprising a wax transfer pump (260) installed between the filtration chamber (230) and the wax transfer pipe (250) to allow high boiling point wax to flow into the pyrolysis tube (114).