WO2021107181A1

WO2021107181A1 - Waste resin emulsification plant system

Info

Publication number: WO2021107181A1
Application number: PCT/KR2019/016449
Authority: WO
Inventors: 황순창
Original assignee: 주식회사 정도하이텍
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2021-06-03
Also published as: JP7352993B2; JP2023503463A

Abstract

The present invention relates to a waste resin emulsification plant system which improves efficiency in the extraction of oil ingredients by pyrolysis and distillation of collected waste resins and does not generate pollutants of various kinds including wastewater.

Description

Waste Resin Emulsification Plant System

The present invention relates to a waste resin recycling technology, and more particularly, to a waste resin emulsification plant system that does not generate various pollutants including waste water while improving efficiency in extracting oil components by pyrolyzing and distilling collected waste resin will be.

In general, synthetic resins called plastics are easy to mold and polymerize various substances using petroleum as the main raw material, so that the use of the synthetic resins is rapidly increased as the characteristics required by users are easy to be given. As a result, the amount of waste also increases. Processing is emerging as a social problem.

Currently, most of this large amount of waste resin is treated by incineration and landfill, and only a part of it is recycled. Due to the fact that natural decomposition is not easy, incineration and landfill eventually lead to environmental pollution, so recycling is recommended, and the energy of waste resin is Paint is being considered as a major method of recycling waste resin.

In particular, as the oil reserves, which are fuels used to produce resin products, are reduced and prices are rising, research is being actively conducted to reduce and recover oil components present in waste resins to increase the degree of resource recycling.

As a conventional method of recovering other resources from the collected waste resin, there is a method of extracting oil from waste plastics through heat treatment or crushing the wastes finely and then mixing them with other materials to form a solid fuel rod by compression and molding.

However, the former has a problem of low economic feasibility and low quality of regenerated oil because the actual profit recovered is low compared to the input regeneration cost, and the latter has a problem with the generation of dioxin, an environmental hormone.

In addition, in the past, waste plastics were relatively easy to recycle with simple PP and PE materials, but in recent years, as plastic manufacturing technology has advanced, various functional materials such as PET, ABS, PC, PA, PBT, PPSU, PCALLOY are used in addition to simple PP and PE. Therefore, the recycling process is difficult.

In particular, containers and films exposed to sunlight are coated with PVC using UV, silane crosslinking is added to containers and films requiring heat resistance and strength improvement, and various packaging papers are printed and coated with PVC, PET, PA, etc. Therefore, the advancement of plastic production technology has led to a decrease in the amount of recyclable waste plastics.

Therefore, there is a method of dissolving RDF and SRF type of waste plastic in half and disassembling it and using it as fuel in a cement plant or cogeneration plant, but its use has been stopped because there is no alternative to remove the chlorine component, and the cost of the pretreatment process is high. There was a problem that there was no business feasibility due to the considerable and low delivery cost.

The present invention was created to solve the above problems, and an object of the present invention is to improve efficiency in the process of making renewable fuel by pyrolyzing waste resin products, and to easily process vinyl products made of functional plastics or synthetic materials. and to provide a waste resin emulsification plant system that does not generate pollutants.

For the above purpose, in the present invention, in a waste resin emulsification plant system, a first outlet pipe for discharging oil vapor due to thermal decomposition of waste resin to the other side is formed, and an axially rotatable cylindrical shape A pyrolysis furnace having an inner body, a main burner formed below the inner body to heat the inner body, and an outer body having a gas discharge pipe surrounding the inner body and the main burner for discharging combustion gas by the main burner; A first condensing plate having a jacket structure in which a first through hole is formed and a cooling medium passes therein is formed in a multi-layered structure to condense the oil vapor introduced through the first discharge pipe, and discharge the condensed oil component to the lower side. a cylindrical rotary condenser having a first outlet pipe, a rotary connecting pipe including a first circulation pipe for circulating the cooling medium from the outside, and a second discharge pipe for discharging residual oil vapor on the other side; a rotating part having a motor and simultaneously rotating the inner body and the first discharge pipe, the rotary condenser, and the rotary connecting pipe; A second condensing plate having a jacket structure in which a second through hole is formed and a cooling medium passes therein is formed in a multi-layered structure to condense the residual oil vapor introduced through the second discharge pipe, and to discharge the condensed oil component to the lower side a fixed condenser having a second outlet pipe and a first vacuum pump for sucking the gas inside and discharging it to the outside; a refrigerator for circulating a low-temperature cooling medium into the first and second condensing plates; It is characterized in that it includes.

At this time, a first storage tank for accommodating the oil components discharged from the first and second outlet pipes; a heater for heating a thermal medium and circulating it to the outside; a purification tower for heating the oil component of the first storage tank through the heating medium in a vacuum state to generate purified oil vapor; a heat exchanger for cooling and condensing the refined oil vapor to produce refined oil; a second storage tank for accommodating the refined oil; may further include.

In addition, the purification tower may include a cylindrical case having a jacket structure through which a thermal medium passes into the wall, a nozzle for spraying an oil component into the case, and a brush rotating in contact with the inner wall of the case. have.

In addition, a first gas pipe for re-supplying the gas discharged from the first vacuum pump to the main burner inside the external body and a second gas pipe for transferring the combustion gas discharged through the gas discharge pipe, the second a demineralization tower having a reactor filled with silicon iron and zinc reactants and activated carbon inside to react with the chlorine component contained in the combustion gas supplied from the gas pipe to separate only the hydrogen component, and an auxiliary burner for deodorization; may further include.

In addition, the first discharge pipe is disposed to be detachable through the filter body side opening so that the first discharge pipe passes through but a space is formed therein and the side is open, and the filter body crosses the first discharge pipe. a dust removal unit having a plurality of filters formed so as to increase the mesh toward the other side, and a cover for opening and closing the opening; may further include.

Through the present invention, by pyrolyzing waste plastic and vinyl to produce high-quality fuel oil, the amount of waste to be incinerated or landfilled can be greatly reduced, and energy and cost associated with the treatment can be reduced.

In particular, it can effectively treat waste plastics made of functional plastics or synthetic materials, and by operating multiple pyrolysis furnaces in parallel, the processing time for a large amount of waste can be greatly reduced. In addition, there is no generation of wastewater or waste acid during the process, and chlorine or dioxin is not released into the atmosphere through the desalination function through the catalyst, so that environmental pollution problems do not occur.

1 is a schematic diagram of an oil flow center according to an embodiment of the present invention;

2 is a schematic diagram of the center of the first cooling line according to an embodiment of the present invention;

3 is a schematic diagram of a gas flow center according to an embodiment of the present invention;

4 is a schematic diagram of the center of the second cooling line according to an embodiment of the present invention;

5 is a schematic diagram of a heat medium flow center according to an embodiment of the present invention;

6 is a view showing the structure of a pyrolysis furnace according to an embodiment of the present invention;

7 is a view showing the structure of a dust removal unit according to an embodiment of the present invention;

8 is a view showing the structure of a rotary condenser according to an embodiment of the present invention;

9 is a view showing the structure of a fixed condenser according to an embodiment of the present invention;

10 is a view showing the structure of the condensing plate of the condenser according to the embodiment of the present invention.

Hereinafter, the structure of the waste resin emulsification plant system of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of an oil flow center according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a first cooling line center according to an embodiment of the present invention. A system for making renewable fuel oil is shown.

In the present invention, a pyrolysis furnace (1), a rotary condenser (2), a stationary condenser (4) and a refrigerator (5) are provided as a basic configuration for the pyrolysis and production of renewable fuel oil.

6 is a view showing the structure of a pyrolysis furnace according to an embodiment of the present invention.

The pyrolysis furnace 1 literally decomposes waste resin products and generates oil vapor. It has a flattened cylindrical shape, and the input part 121 into which the waste resin is put on one side and the pyrolysis of the waste resin on the other side. An inner body 12 formed with a first discharge pipe 14 for discharging oil vapor according to the invention, a main burner 12 formed on the lower side of the inner body 12 to heat the inner body 12, and the inner body ( 12) and an outer body 11 surrounding the main burner 12.

A compressed product of waste plastic or waste vinyl is put into the input unit 121, and as the inner body 12 rotates through an imaginary axis crossing one side and the other, the heat of the lower main burner 12 is released. It is uniformly transferred to the waste inputted to the inner body 12 and thermal decomposition is performed.

At this time, as the first discharge pipe 14 is also integrated with the inner body 12 and rotates, the first discharge pipe 14 is formed at the center of rotation of the inner body 12 and is configured to be supported through a bearing B, and the The outer body 11 does not rotate and a bearing (B) for supporting the rotation of the inner body 12 is installed on the inside, and a gas discharge pipe for discharging combustion gas by the operation of the main burner 12 to the outside is provided on the upper side. (111) is formed.

As described above, moisture removal and thermal decomposition of the waste resin injected through the heating of the inner body 12 are sequentially performed, and the moisture and oil vapor generated in the inner body 12 through the action of the first vacuum pump 43 to be described later is described above. It is sequentially discharged through the first discharge pipe (14).

At this time, in order to increase the heat treatment effect of the waste resin melted in the inner body 12 and minimize welding, etc., the inner wall of the inner body 12 has a protrusion 123 formed in a spiral (screw shape) along one and the other direction. will form Through this structure, the molten resin is naturally moved to one side or the other according to the rotation of the inner body 12, and by periodically changing the rotation direction of the inner body 12, uniform heat treatment is performed, and seizure prevention and ease of use One offering will be made.

At this time, in order to prevent substances such as tar generated through thermal decomposition inside the inner body 12 from being discharged through the first discharge pipe 14, a blocking part is placed inside the inner body 12 toward the first discharge pipe 14. (17) can be provided.

The blocking part 17 is a structure that allows only the passage of gaseous substances including gas through the first discharge pipe 14 and prevents liquid and solid substances from passing through, and a through hole 172 is formed in the center. A through plate 171 installed across the inner body 12 and a blocking plate 173 installed to keep a set distance from the inner wall of the inner body 12 while falling from the through plate 171 to the first discharge pipe 14 side. ) is composed of

That is, the gas generated in the inner body 12 passes through the through hole 172 and collides with the blocking plate 173, and passes through the gap with the inner wall of the inner body 12 to the outside of the blocking plate 173, It is discharged through the first discharge pipe 14 in the center. In this process, various liquid and solid substances mixed with the gas do not pass through the zigzag flow path formed through the through hole 172 and the blocking plate 173 and are not discharged to the first discharge pipe 14 . At this time, the inspection hole 174 may be formed of a transparent material as the first discharge pipe 14 so that it can be easily checked from the outside whether or not such material has accumulated.

7 is a view showing the structure of the dust removal unit according to an embodiment of the present invention.

Moisture and oil vapor generated in the inner body 12 are moved to the rotary condenser 2 through the first discharge pipe 14 . At this time, since various foreign substances contained in the waste resin and various dusts that impair the quality of the regenerated oil are generated during the heat treatment process, it must be properly filtered from the oil vapor flowing into the rotary condenser (2), and for this purpose, the first discharge pipe ( 14) is provided with a dust removal unit 15.

The dust removal unit 15 is substantially formed integrally with the first discharge pipe 14 to filter out dust passing therethrough, and has a rectangular parallelepiped shape with a space communicating with the first discharge pipe 14 therein. and a filter body 151 that rotates together with the first discharge pipe 14 .

At this time, one side of the filter body 151 is opened, so that the filter 152 can be installed and replaced, and the cover 153 having a handle to open and close the opening of the filter body 151 is provided. will be prepared

The filter 152 is made of a material that can be separated and washed through the side opening of the filter body 151 and is installed to intersect the first discharge pipe 14 to filter the dust passing through the first discharge pipe 14 . At this time, it is preferable to sequentially provide a plurality of filters 152 so that the mesh is increased from one side to the other, and the accompanying drawings show that three filters are installed, but the present invention is not limited thereto.

8 is a view showing the structure of a rotary condenser according to an embodiment of the present invention.

The rotary condenser 2 has a cylindrical shape laid down in a configuration for condensing oil vapor generated in the inner body 12 to generate an oil component, and is connected to the first discharge pipe 14 to rotate together.

A first through hole 212 is formed inside the rotary condenser 2, and a first condensing plate 21 having a jacket structure through which a cooling medium passes is erected from one side to the other and is formed in a multi-layer structure to form the first discharge pipe. The oil vapor introduced through (14) is condensed.

10 is a view showing a structure of a condensing plate of a condenser according to an embodiment of the present invention, and in the accompanying drawings, six first condensing plates 21 are provided as an embodiment, and each of the first condensing plates is shown. 21 is installed in the form of blocking the inside of the rotary condenser 2 in the longitudinal direction, and by changing the position of the formed first through hole 212, the oil vapor passing through the first through hole 212 and flowing from one side to the other is each In contact with the first condensing plate 21, cooling and condensation are made.

At this time, a first outlet pipe 22 is formed together with a valve on the side surface of the rotary condenser 2 to discharge the condensed oil component to the lower side, and a first circulation pipe 231 for circulating the cooling medium from the outside. and a second discharge pipe 232 for discharging residual oil vapor that has not been condensed is provided on the other side of the rotary connection pipe 23 .

The rotary connector 23 is positioned at the center of rotation as it rotates together with the rotary condenser 2 and is supported through a bearing B, preferably at a level of -20°C through the refrigerator 5. A pipe for supplying the cooled cooling medium to the first condensing plate 21 inside the rotary condenser 2 and a pipe for transferring the cooling medium (about 60° C.) whose temperature has risen by circulating the first condensing plate 21 to the refrigerator side. The second discharge pipe 232 for discharging the and residual oil vapor to the fixed condenser is configured as a multi-pipe structure formed in concentric circles to effectively prevent leakage due to rotation in the connection structure with the fixed condenser 4 to be described later.

In addition, a motor 31 is provided, and a rotating part 3 for rotating the inner body 12 and the first discharge pipe 14, the rotary condenser 2, and the rotary connection pipe 23 together is provided. As mentioned above, the four components of the inner body 12 and the first discharge pipe 14, the rotary condenser 2, and the rotary connector 23 are structurally connected and properly supported through the bearing B. If you rotate any of the four configurations, they all rotate together.

In order to transmit the rotational force of the motor 31 of the rotating part 3, a power transmission means 32 such as a gear, a chain, or a belt must be provided, so as shown in the accompanying drawings, the first first having the smallest diameter and the center of gravity. It is preferable to rotate it by connecting it to the discharge pipe 14, and it is apparent to those skilled in the art that a gear and a chain can be appropriately provided for sufficient rotational force transmission along with forward and reverse rotation control.

9 is a view showing the structure of a fixed condenser according to an embodiment of the present invention.

The fixed condenser (4) is a structure for condensing again the oil vapor that has not been condensed through the rotary condenser (2), and has a cylindrical shape that has also been laid down, and a second through hole (412) is formed therein, and a cooling medium is formed therein. The second condensing plate 41 of the jacket structure through which the is passed is formed in a multi-layer structure in the left and right direction. In the accompanying drawings, six second condensing plates 41 are provided as an embodiment, and each of the second condensing plates 41 is provided at regular intervals in the form of blocking the inside of the fixed condenser 4 in the longitudinal direction. By changing the position of the formed second through-holes 412, the residual oil vapor passing through the second through-holes 412 and flowing from the left to the right contacts the respective second condensing plates 41 and is cooled and condensed.

At this time, a second outlet pipe 42 is formed with a valve on the lower side of the fixed condenser 4 to discharge the condensed oil component, and a first vacuum pump that sucks the gas inside and discharges it to the outside ( 43) is connected.

At this time, by installing the first auxiliary tank 44 between the fixed condenser 4 and the first vacuum pump 43, the material that can be included in the gas is minimized from flowing into the water-ring type first vacuum pump 43, and the Separation efficiency can be improved.

That is, a third discharge pipe 45 is formed on the gas discharge side of the fixed condenser 4 to discharge uncondensed oil vapor, and the third discharge pipe 45 is connected to the inside of the first auxiliary tank 44 .

In this state, the first vacuum pump 43 is connected to the upper side of the first auxiliary tank 44 to make suction, and the oil component in the oil vapor introduced through the third discharge pipe 45 is transferred to the first auxiliary tank 44 ) will remain in

At this time, the lower side of the first auxiliary tank 44 is narrowed so that the condensed oil component can be collected, and the condensed oil component is discharged by connection with the second outlet pipe 42 .

As mentioned above, the first discharge pipe 14, the rotary condenser 2, the second discharge pipe 232, and the fixed condenser 4 from the inner body 12 have an internally connected structure, so the first vacuum pump 43 As the is driven, the internal body 12, the rotary condenser 2, the fixed condenser 4, and the first auxiliary tank 44 can be decompressed to a vacuum level at the same time.

The cooling medium cooled to a level of -20 ° C through the refrigerator 5 circulates through the second condensing plate 41 inside the fixed condenser 4, and the cooling medium (about 60 ° C.) whose temperature has risen is supplied to the refrigerator side again. .

In addition, while the rotary condenser 2 rotates and the fixed condenser 4 is fixed while connecting the rotary condenser 2 and the fixed condenser 4 through the rotary connector 23, leakage of oil vapor and cooling medium In order to be transferred without this, the rotational connection pipe 23 is rotatably connected to one side, and the fixed connection pipe 25 that does not rotate is connected to the other side, and the first circulation pipe 231 is connected to the inside. and a rotary joint 24 configured such that the second discharge pipe 232 communicates between the rotary connector 23 and the fixed connector 25, respectively.

This rotary joint 24 is a configuration having a sealing structure for connecting the rotating pipe and the fixed pipe without leakage of fluid and can be configured through a known commercial product, so that the purpose of the invention is prevented from being obscured For this purpose, a detailed description thereof will be omitted.

The refrigerator 5 is a refrigerator equipped with a compressor, a condenser, an expansion valve and an evaporator, and as mentioned above, a low-temperature cooling medium is circulated into the first and

second condensing plates

21 and 41 having a jacket structure. make it A first cooling line 52 and a first cooling pump 51 are provided for this purpose, and it is possible to use a refrigerant as the cooling medium as it is, but the first condensate of the antifreeze cooled to a level of -20°C through the evaporator It is preferable to supply to the plate 21 and the second condensing plate 41 to be circulated.

In the accompanying drawings, two sets of such a pyrolysis furnace (1), a rotary condenser (2) and a stationary condenser (4) are provided, and a large amount of waste is generated by operating in parallel connection from one to many depending on the size of the plant. It can greatly reduce the heating time according to the treatment of

3 is a schematic diagram of a gas flow center according to an embodiment of the present invention.

As the rotary condenser 2 and the fixed condenser 4 are depressurized from the inner body 12 through the first vacuum pump 43, as mentioned above, moisture due to waste heating and the fixed condenser 4 do not condense. The gas containing the oil vapor is discharged through the outlet of the first vacuum pump (43).

At this time, moisture can be discharged into the atmosphere, but the gas including oil vapor that is not condensed in the fixed condenser 4 contains harmful components, so it is necessary to discharge it after separate treatment, and in the present invention, it is used as the main burner 12. It is re-supplied to burn and incinerate.

To this end, the first gas pipe 16 for re-supplying the gas discharged from the first vacuum pump 43 to the main burner 12 inside the outer body 11, together with the outlet of the first vacuum pump 43 A selector valve is installed in the air so that the outlet of the first vacuum pump 43 is selectively connected to the outside or the first gas pipe 16, so that moisture at the initial stage of operation of the main burner 12 can be discharged to the outside, and then The gas including oil vapor can be transferred to the first gas pipe 16 .

The gas transferred through the first gas pipe 16 is burned through the main burner 12 together with the air supplied from the outside, and by-products thereof are discharged through the gas discharge pipe 111 . At this time, since chlorine gas is generated in the heat treatment of resins such as PVC, the gas discharged through the gas discharge pipe 111 moves through the second gas pipe 83 so as not to be directly discharged into the atmosphere, and chlorine components are removed through catalytic action. It is supplied to the demineralization tower (8) to remove.

The desalination tower 8 includes a reactor 81 filled with a reaction material that reacts with chlorine components contained in the combustion gas supplied from the second gas pipe 83 to separate only hydrogen components, and an auxiliary for deodorization. A burner 82 is provided to discharge to the atmosphere in a state in which chlorine components are removed to prevent air pollution. Preferably, the inside of the reactor 81 is composed of three layers, but a silicon iron layer 811, a zinc layer 812, and an activated carbon layer 813 are formed from the bottom so that chlorine gas passes through the upper layer and contaminants are sequentially removed. so that clean gases can be released into the atmosphere.

5 is a schematic diagram of a heat medium flow center according to an embodiment of the present invention.

The oil components discharged from the first outlet pipe 22 and the second outlet pipe 42 are accommodated in the first storage tank 61 through the first pump 611 to separate impurities through sedimentation. At this time, two or more first storage tanks 61 may be provided as shown in the accompanying drawings by reflecting the amount of waste and impurities to be treated, and the first storage tank 61 for smooth precipitation and post-treatment It is preferable to heat the oil component contained in the furnace to a level of about 50°C.

In the present invention, for this purpose, a heater 71 for heating a heating medium and circulating it to the outside is provided. The heater is a heat medium boiler, and the heat medium utilizes an oil that can be heated to a level of 300° C. and circulates it, and provides heat necessary for the purification tower 72 and the first storage tank 61 .

The oil component of the first storage tank 61 is supplied to the purification tower 72 through the second pump 73 to undergo a purification process. The purification tower 72 is configured to generate purified oil vapor by heating the oil component supplied through the heating medium in a vacuum state, and has a cylindrical case having a jacket structure through which the heated heating medium passes into the wall ( 721), a nozzle 722 for spraying the oil component supplied through the second pump 73 into the case 721, and a brush 723 rotating in contact with the inner wall of the case 721. do.

That is, after depressurizing the inside of the case 721 to a vacuum through the action of the second vacuum pump 75, which will be described later, the oil component is sprayed in a state heated to about 300° C. through a thermal medium to generate oil vapor. At this time, the brush 723 is rotated at a constant speed through a hydraulic motor or the like to promote the generation of oil vapor and facilitate the treatment of deposits stuck to the inner wall of the case with oil components.

In addition, it is also possible to configure a groove crossing the lower end of the case 721 and a screw for transferring the sediment flowing into the groove to one side to facilitate the treatment of such deposits.

The oil vapor generated through the refining tower 72 is cooled through a heat exchanger 74 and condensed. The heat exchanger 74 may be configured to cool oil vapor by circulating cooling water through a cooling medium generated through the refrigerator 5 or a water cooling unit 9 to be described later, and to improve condensation efficiency and increase the yield of regenerated oil. A plurality of heat exchangers 74 may be connected in series as shown in the accompanying drawings.

Refined oil produced by cooling and condensing the refined oil vapor through the heat exchanger 74 is finally accommodated in the second storage tank 62 .

At this time, a second vacuum pump 75 is installed between the heat exchanger 74 and the second storage tank 62 to form a vacuum inside the refinery tower 72 and the heat exchanger 74 to help transfer oil vapor. , the condensed refined oil is transferred to the second storage tank 62 .

At this time, as mentioned above, in order to minimize the inflow of oil vapor that has not been condensed into the water-sealed second vacuum pump 75, the second auxiliary tank 76 is located between the heat exchanger 74 and the second vacuum pump 75. can be configured.

That is, a discharge pipe is formed on the discharge side of the heat exchanger 74 , which is connected to the inside of the second auxiliary tank 76 .

In this state, the second vacuum pump 75 is connected to the upper side of the second auxiliary tank 76 to make suction, and the oil component in the oil vapor not condensed through the heat exchanger 74 is transferred to the second auxiliary tank 76 . ) will remain in

4 is a system diagram centered on a second cooling line according to an embodiment of the present invention, including a cooling water tank 91, a second cooling pump 92, a second cooling line 93, and a cooling tower 94. The structure of the water cooling part 9 which cools the 1st vacuum pump 43 and the 2nd vacuum pump 75 is shown.

In the present invention, the first vacuum pump 43 and the second vacuum pump 75 are water-sealed vacuum pumps that operate continuously for processing time and form a vacuum, so cooling is required during operation, and the cooling water contained in the cooling water tank 91 is discharged. The cooling tower 94 is circulated together with the first vacuum pump 43 and the second vacuum pump 75 through the second cooling pump 92 to perform cooling.

A process for producing regenerated oil from waste resin through the system configuration described above will be described as follows.

In a preferred embodiment, the inner body 12 is manufactured to a size capable of putting about two compressed waste resin products with a weight of about 2600 kg, and the main burner 12 uses LPG as a fuel. After that, the input part 121 is closed and heated for about 1 hour, and when the internal temperature of the inner body 12 reaches 130° C., about 10% of the moisture generated from the waste resin is transferred to the atmosphere through the first vacuum pump 43 and the switching valve. emit

After that, the switching valve is closed and the internal body 12 is heated for about 2 hours to reach about 380° C., and the first vacuum pump 43 is connected to the pyrolysis furnace 1, the rotary condenser 2, and the fixed condenser 4 to 700 By applying a vacuum of ~900 mmHg level, the oil vapor generated in the pyrolysis furnace (1) is strongly sucked toward the rotary condenser (2), the stationary condenser (4), and the first auxiliary tank (44), and a complete vacuum is maintained.

At this time, the refrigerator 5 circulates the cooling medium (antifreeze) at minus 20 degrees Celsius to the first condensing plate 21 and the second condensing plate 41 installed in the rotary condenser 2 and the stationary condenser 4, respectively, for thermal decomposition. By condensing the oil vapor discharged from the furnace (1), the oil vapor is liquefied to produce an oil component.

At this time, after passing through the first auxiliary tank 44, the heavy gas that is not condensed into the first vacuum pump 43 is slightly introduced and introduced, and this is the main burner 12 of the pyrolysis furnace through the first gas pipe 16. supplied and combusted.

The thermal cracked oil, that is, the oil component generated in the rotary condenser 2 and the stationary condenser 4 and the first auxiliary tank 44, is transferred to the first storage tank 61 through the first pump 611, After precipitation, filtration, and heating processes, the thermally cracked oil transferred to the purification tower 72 through the second pump 73 is purified by a reduced pressure distillation method, passes through the heat exchanger 74 and a second vacuum It is sucked into the pump 75 and transferred to the second storage tank 62 and stored as a high-performance, low-sulfur pyrolysis oil, which is a final product.

The heavy residual gas discharged from the first vacuum pump 43 is supplied to the main burner 12 of the pyrolysis furnace through the first gas pipe 16 to be burned as fuel. This is converted into hydrochloric acid gas, hydrogenated in the desalination tower 8, and discharged to the atmosphere.

Claims

In the waste resin emulsification plant system,

A first discharge pipe for discharging oil vapor due to thermal decomposition of waste resin is formed on one side of the input part into which waste resin is put and on the other side, a cylindrical inner body that can rotate and is formed below the inner body to heat the inner body a pyrolysis furnace having a main burner and an outer body in which the inner body and a gas discharge pipe for discharging combustion gas from the main burner are formed, the inner body and the outer body surrounding the main burner;

A first condensing plate having a jacket structure in which a first through hole is formed and a cooling medium passes therein is formed in a multi-layered structure to condense the oil vapor introduced through the first discharge pipe, and discharge the condensed oil component to the lower side. a cylindrical rotary condenser having a first outlet pipe, a rotary connecting pipe including a first circulation pipe for circulating the cooling medium from the outside, and a second discharge pipe for discharging residual oil vapor on the other side;

a rotating part having a motor and simultaneously rotating the inner body and the first discharge pipe, the rotary condenser, and the rotary connecting pipe;

A second condensing plate having a jacket structure in which a second through hole is formed and a cooling medium passes therein is formed in a multi-layered structure to condense the residual oil vapor introduced through the second discharge pipe, and to discharge the condensed oil component to the lower side a fixed condenser having a second outlet pipe and a first vacuum pump for sucking the gas inside and discharging it to the outside;

a refrigerator for circulating a low-temperature cooling medium into the first and second condensing plates; Waste resin emulsification plant system comprising a.
According to claim 1,

a first storage tank for accommodating the oil components discharged from the first and second outlet pipes;

a heater for heating a thermal medium and circulating it to the outside;

a purification tower for heating the oil component of the first storage tank through the heating medium in a vacuum state to generate purified oil vapor;

a heat exchanger for cooling and condensing the refined oil vapor to produce refined oil;

a second storage tank for accommodating the refined oil; Waste resin emulsification plant system, characterized in that it further comprises.
3. The method of claim 2,

The purification tower is

A waste resin emulsification plant comprising: a cylindrical case having a jacket structure through which a thermal medium passes into a wall; a nozzle for spraying an oil component into the case; and a brush rotating in contact with the inner wall of the case. system.
According to claim 1,

A first gas pipe for re-supplying the gas discharged from the first vacuum pump to the main burner inside the outer body and a second gas pipe for transferring the combustion gas discharged through the gas discharge pipe,

Demineralization having a reactor filled with silicon iron and zinc reactants and activated carbon inside to react with the chlorine component contained in the combustion gas supplied from the second gas pipe to separate only the hydrogen component, and an auxiliary burner for deodorization tower; Waste resin emulsification plant system, characterized in that it further comprises.
According to claim 1,

The first discharge pipe,

A filter body through which the first discharge pipe passes, a space is formed therein, and a side surface is opened, and the filter body is disposed detachably through the side opening part of the filter body to intersect the first discharge pipe, and the mesh is increased from one side to the other. a dust removal unit having a formed filter and a cover opening and closing the opening; Waste resin emulsification plant system, characterized in that it further comprises.