WO2016175481A1

WO2016175481A1 - Pyrolysis apparatus and pyrolysis system for recovery of oil and production of solids

Info

Publication number: WO2016175481A1
Application number: PCT/KR2016/003850
Authority: WO
Inventors: 이달은
Original assignee: 이달은
Priority date: 2015-04-28
Filing date: 2016-04-12
Publication date: 2016-11-03
Also published as: KR101612347B1

Abstract

The present invention relates to a pyrolysis apparatus for obtaining recycled fuel by pyrolyzing waste, and specifically, to a pyrolysis apparatus and a pyrolysis system for recovery of oil and production of solids, in which oil is recovered by pyrolysis of waste and high-temperature fine particles remaining in a pyrolysis furnace after pyrolysis are discharged as solids by being mixed with moisture which is recovered when oil is recovered. The pyrolysis apparatus for recovery of oil and production of solids according to the present invention comprises: a pyrolyzer comprising a heating furnace having a heating means for increasing temperature, and a pyrolysis furnace having a stirring means for stirring the waste which has been introduced inside; and an oil recovery apparatus for obtaining oil from the discharge gas which has been discharged from the pyrolyzer, wherein the oil recovery apparatus obtains oil by separating oil from the discharge gas using a water tank in which water is stored, and allows fine particles to be discharged as solids by recovering the moisture included in the discharge gas and settled sediment, pyrolyzing the recovered moisture and sediment, and then providing same to the pyrolysis furnace so as to bond same with the fine particles remaining in the pyrolysis furnace.

Description

Pyrolysis device and its pyrolysis system for oil recovery and solids production

The present invention relates to a pyrolysis device configured to pyrolyze waste to obtain regenerated fuel, and more particularly, to recover oil by pyrolyzing waste, and to recover the high temperature fine particles and oil remaining in the pyrolysis furnace after pyrolysis. The present invention relates to a pyrolysis apparatus and a pyrolysis system for oil recovery and solids production, which are mixed and discharged to a solids.

As society shows full-scale industrialization, as the waste caused by 'mass production and mass consumption' is rapidly increasing, the environmental pollution accompanying the waste disposal is seriously required. Therefore, efficient waste disposal plans are urgently required.

Generally, there are 'reduction', 'recycling', 'recycling', 'landfill' and 'incineration', and various methods of pyrolysis of waste in high temperature and vacuum environment have been introduced. Various pyrolysis devices and methods have been proposed, developed, and used, such as the patent documents, and the technology is continuously developed to provide more advanced technology (Reference Patent Document (KR) Patent Publication No. 10-0266852, (KR ) Patent No. 10-0513932, (KR) Patent No. 10-0748624).

In general, an indirect heating pyrolysis apparatus for pyrolysis waste in a high temperature and vacuum environment is mainly a heating furnace in which a heating means is formed, and a pyrolysis furnace for pyrolyzing waste installed inside the heating furnace at a high temperature, a temperature and a vacuum state. And, in the pyrolysis furnace, waste is decomposed into gas and oil, char, etc., the decomposed gas and oil are discharged through a gas outlet, guided to a gas / oil collecting device, and gas and oil are separated and collected. The remaining Char is discharged through the embryo outlet.

The high-temperature exhaust gas guided to the gas / oil collecting device requires a technology of separating and collecting only high-purity gas and oil by containing a large amount of moisture and foreign substances in addition to gas and oil, and to achieve this purpose. Applicant has provided a technology for a variety of oil capture device and pyrolysis system using a water tank in which water is stored (Patent Document (KR) Patent No. 10-1202810, (KR) Patent Publication No. 10- 1379225).

After pyrolysis in the pyrolysis furnace, waste is thermally decomposed into the pyrolysis furnace, whereby oil components and moisture are released, and only a large amount of fine particles are present.There is also a large amount of foreign matter precipitated in the tank for separating oil. Done.

The microparticles and precipitates present in the pyrolysis furnace generate many difficulties in discharge and treatment, and also cause other problems incurring a large cost during treatment.

The present invention provides a pyrolysis apparatus for oil recovery and solids generation, which makes it easy to treat sediment which precipitates during oil separation in an oil collecting apparatus for separating fine particles and oil present after pyrolysis in a pyrolysis furnace for pyrolyzing waste, and its It is intended to provide a pyrolysis system.

In other words, by using the water (water) and sediment that precipitates in the oil collection unit to precipitate the solids to solidify the microparticles present after pyrolysis in the oil collecting device, the oil recovery and solids produced to simplify the processing To provide a pyrolysis device and a pyrolysis system for the same.

The pyrolysis apparatus for oil recovery and solids generation of the present invention includes a pyrolysis furnace including a heating furnace including a heating means for heating the temperature and a pyrolysis furnace including a stirring means for stirring the waste introduced into the inside; In the pyrolysis device for pyrolyzing waste comprising an oil recovery device configured to obtain oil from the exhaust gas discharged from the pyrolysis device, the oil recovery device is obtained by separating the oil from the exhaust gas using a water tank in which water is stored. To recover the moisture and sediment that are contained in the exhaust gas, and to supply the recovered moisture and sediment to the pyrolysis furnace to be combined with the fine particles remaining in the pyrolysis furnace so that the fine particles are discharged as solids. It is done.

The oil recovery device is to separate and recover the oil contained in the exhaust gas by the difference of specific gravity by using water, the sediment is collected by the difference of specific gravity on one side, so that the collected sediment is discharged together with water when the water is discharged It comprises an oil collector made up.

The oil collecting unit is divided into a first tank configured to collect and recover oil by having a partition wall open to form a sediment passage at a lower side thereof, and a second tank collecting sediment.

The first tank, the bottom surface is formed so that the sediment to precipitate is introduced into the second tank through the sediment passage, the reverse flow prevention valve is provided at the end introduced into the exhaust gas discharged from the pyrolysis, the end is discharge gas It is provided with a first exhaust gas supply port installed to be located in the water received to be discharged in the water, one side is provided with an oil outlet for discharging the collected oil.

One side of the bottom portion of the second tank is provided with a sediment collecting unit for collecting sediment, and a water-precipitate outlet for discharging water is formed in a portion of the sediment collecting unit.

At least one of the first tank and the second tank includes a gas outlet having a valve for pressure control.

Another pyrolysis system for oil recovery and solids generation of the present invention includes a pyrolysis machine (A) for pyrolyzing waste, and an oil recovery device (B) configured to obtain oil from exhaust gas discharged from the pyrolysis machine (A). A pyrolysis step (S1) of adding waste to the pyrolysis furnace of the pyrolyzer using a pyrolysis device, followed by stirring and heating to increase the temperature; Oil separation step (S2) for separating the oil and sediment in the gas by passing the gas generated during the pyrolysis after the step (S1) progress or completion to the oil recovery device (B); After the step (S2) is characterized in that it comprises a solidifying step (S3) of supplying the water and precipitate recovered in the oil recovery device (B) to the pyrolysis furnace to solidify the fine particles in the pyrolysis furnace.

The pyrolysis apparatus and oil pyrolysis system for oil recovery and solids generation of the present invention is discharged by the presence of a large amount of fine particles in the pyrolysis furnace by being decomposed from the pyrolysis furnace in the form of gas by the decomposition of water and oil components during the thermal decomposition of waste. Although there was a problem in the treatment, it is easy to discharge by solidifying again by using the water discharged in the form of gas. In particular, the solidified solid has the advantage that it can be used as a chemical fuel by having a flammable.

In addition, sediment is generated in the water tank when oil is separated by using the water tank, and therefore, the sediment should be discharged periodically in the water tank. However, difficulties in treatment due to problems that may cause environmental pollution by the sediment during discharge are caused. However, the sediment has the advantage that it is easy to process by supplying by thermal decomposition together with the water recovered during the oil separation in the gas to combine with the high temperature microparticles.

That is, waste usually contains 20 to 30% of water, and most of the water is discharged in a gaseous form during pyrolysis, and is recovered in an oil recovery device configured to recover oil using a water tank. A large amount of foreign matter discharged is recovered as a sediment and is present.

When the recovered moisture and foreign matter precipitate are supplied to a pyrolysis furnace in a high temperature state, it is combined with the fine particles present in the pyrolysis furnace to form a solid that is easily discharged and processed. Such solids have the advantage that they can also be used as chemical fuels.

1 is a schematic view of a pyrolysis apparatus for oil recovery and solids production showing an embodiment of the present invention.

Figure 2 is a front cross-sectional schematic diagram of a pyrolysis unit in a pyrolysis apparatus for oil recovery and solids production showing an embodiment of the present invention.

Figure 3 is a side cross-sectional schematic diagram of a pyrolysis unit in a pyrolysis apparatus for oil recovery and solids production showing an embodiment of the present invention.

Figure 4 is a schematic cross-sectional view of the oil recovery unit of the pyrolysis apparatus for oil recovery and solids production showing an embodiment of the present invention.

FIG. 5 is a schematic diagram of a stage for a pyrolysis system for inventors of oil recovery and solids production.

6 is a schematic view of the present invention solids production.

Figure 7 is a schematic diagram of the operating state of the pyrolysis and oil separation step of the present stage of the pyrolysis system for oil recovery and solids production.

8 is a schematic view of the operating state of the solidification and gas purification steps of the pyrolysis system for the present inventors oil recovery and solids production.

[Description of Drawing Reference]

A: pyrolysis machine

10: heating furnace 11: burner

20: pyrolysis 21: stirrer

22: waste inlet 23: gas outlet

24: water supply port

B: oil recovery unit

30: oil collection unit 31: the first water tank

32: second tank 33: diaphragm

34: sediment passage 35: air passage

31a, 32a: bottom surface 32b: sediment collecting unit

36: first exhaust gas supply port 38: water-sediment discharge port

40: refining unit 41: second exhaust gas supply port

C: Piping Line

C1: gas discharge line C2: moisture supply line

D: Gas recovery device E: Year

V1, V2, V3, V4: Valve

The pyrolysis apparatus for oil recovery and solids generation of the present invention includes a pyrolysis furnace (20) including a heating furnace (10) including heating means for raising the temperature and a stirring means for stirring the waste introduced into the inside. (A); In the pyrolysis device for pyrolyzing waste comprising an oil recovery device (B) configured to obtain oil from the exhaust gas discharged from the pyrolysis machine (A),

The oil recovery device (B) is obtained by separating the oil from the exhaust gas using a water tank in which water is stored, recovering water and sediment that are contained in the exhaust gas, and pyrolyzing the recovered water and sediment (2). It is then supplied to the pyrolysis furnace 20 to combine with the fine particles (1) remaining in the pyrolysis furnace 20 is made to discharge the fine particles to the solid (3).

Another invention, a pyrolysis system for oil recovery and solids production, includes a pyrolysis machine (A) for pyrolyzing waste, and an oil recovery device (B) configured to obtain oil from exhaust gas discharged from the pyrolysis machine (A). Using a pyrolysis device,

A pyrolysis step (S1) of adding waste to the pyrolysis furnace of the pyrolysis unit (A), followed by stirring to increase the temperature and pyrolysis; Oil separation step (S2) for separating the oil and sediment in the gas by passing the gas generated during the pyrolysis after the step (S1) progress or completion to the oil recovery device (B); And a solidification step (S3) of supplying the water and the precipitate recovered in the oil recovery device (B) to the pyrolysis furnace after the step (S2) to solidify the fine particles in the pyrolysis furnace.

The present invention relates to a pyrolysis device configured to obtain regenerated fuel by pyrolyzing waste in a vacuum or high temperature state, and in detail, fine particles in a pyrolysis furnace generated during pyrolysis of waste and an oil collecting unit of an oil recovery unit. The present invention relates to a pyrolysis apparatus and a pyrolysis system for oil recovery and solids production, which can be easily discharged and collected by converting the prepared water and sediment into solids, which can be easily discharged and collected.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings for a pyrolysis device for oil recovery and solids production.

The configuration of the pyrolysis device for oil recovery and solids of the present invention is largely the heating furnace 10 including a heating means for raising the temperature, and the waste injected into the inside heated by the heating furnace in the vacuum, high temperature state pyrolysis A pyrolyzer (A) comprising a pyrolysis furnace (20) comprising stirring means for agitating the waste so as to make it possible; An oil recovery device (B) configured to recover oil and water from the exhaust gas discharged from the pyrolysis machine (A); Piping line (C) for guiding the exhaust gas and water (water); And a gas recovery device (D) for collecting the gas discharged from the oil recovery device (B), and a flue (E) for sending moisture to the atmosphere.

The pyrolyzer (A) is composed of a pyrolysis furnace (20) comprising a heating furnace (10) including a burner (11), which is a heating means for raising the temperature, and a stirring means for stirring waste in the heating furnace (10). do.

The heating furnace 10 is made so that the pyrolysis furnace 20 can be seated to the upper side, the upper width is wide and the lower width is made of a narrow light beam narrowing form. This is to enable the transport using a vehicle even in the case of a large number of a plurality of agitators 21 and 21 'in the pyrolysis furnace 20 to be rearranged.

2 and 3,

The pyrolysis furnace 20 is usually located above the heating furnace 10, and is heated to be heated by the heating furnace 10 so as to thermally decompose the waste introduced into the vacuum and high temperature conditions, and greatly agitate the waste inside. A plurality of agitators (21, 21 ') having a stirring blade that rotates by each motor (M), which can be a stirring means, waste inlet (22) for supplying waste to the upper side and exhaust gas generated during pyrolysis And a gas outlet 23 for discharging, a water supply port 24 for supplying moisture to one side, and a solid discharge port 25 for discharging the solid 3 to the lower side.

The

agitators

21 and 21 ′ provided in the pyrolysis furnace 20 stir waste to be pyrolyzed well during pyrolysis, while water and sediment and pyrolysis furnace are introduced through the water supply port 24 after pyrolysis. 20) serves to stir the microparticles in the form of lumps upon mixing (bonding).

Furthermore, between the

stirrers

21 and 21 ′, a plurality of

stirrers

21 and 21 have internal heating and internal spaces 20a for allowing the temperature of the internal space 20a of the pyrolysis furnace 20 to be uniform. It may be provided with a separator 26 for the internal heating means to be separated into two seals having a ').

The separator 26 for the internal heating means has a heating internal space in which hot air flows in communication with the internal space of the heating furnace 10.

Referring to Figure 4,

The oil recovery device (B) is configured to separate the oil (Oil) components and foreign substances present in the gas discharged from the pyrolysis furnace 20 of the pyrolysis machine (A) by using a water, a plurality of Explosion prevention device to prevent the explosion due to the pressure rise of the oil collecting unit 30 made of a water tank, the refiner 40 made of a water tank distinct from the oil collecting unit 30 and the oil collecting unit 30 It consists of 50.

The oil collecting unit 30 is divided into partitions 33 formed with a sediment passage 34 at a lower side and an upper side of the lower and upper sides, and an air passage 35 formed at an upper side thereof to collect and recover oil. It consists of a first water tank 31 and a second water tank 32 in which sediments are collected.

The first tank 31, the bottom surface (31a) is formed to be inclined so as to move the sediment (debris) to precipitate through the sediment passage 34 to the second tank (32), and communicates with the gas outlet (23) The first exhaust gas supply port 36 is provided, and the oil discharge port 37 for discharging the recovered oil is provided on the side surface located at a predetermined height. An end of the first exhaust gas supply port 36 is positioned in the water tank so as to be located in the water, and an end check valve V1 is provided at the end to prevent the back flow phenomenon.

The second water tank 32, the bottom surface 32a at the lower side is formed to be inclined to one side so that the precipitate (sediment) to be settled to one side to form a sediment trap 32b. The sediment trap 32b is formed with a water-sediment outlet 38 so as to be discharged together as a precipitate when the water in the tank is discharged, the upper side is provided with a gas outlet 39 for discharging the gas. Each of the water-sediment discharge port 38 and the gas discharge port 39 is provided with non-return valves V2 and V3.

The purification unit 40 is configured to allow water, foreign matter, and cooling in the gas by using water, such as the oil collecting unit 30, and the second discharge gas supply port 41 and the gas communicating with the gas outlet 23. An outlet 42 is provided.

An end of the second exhaust gas supply port 41 is located in the water tank in the same tank as the first exhaust gas supply port 36, and a reverse flow prevention valve V4 is disposed at the end to prevent a back flow phenomenon. Is provided.

At this time, the end of the second exhaust gas supply port 41 is installed so that a pressure (water pressure) greater than the first exhaust gas supply port 36 acts, that is, the depth of the end of the first exhaust gas supply port 36 It is provided so that the end depth depth h2 of the 2nd exhaust gas supply port 41 may be located deeper than (h1). The gas discharged from the gas discharge port 23 is discharged to the oil collecting unit 30 unless the backflow prevention valve V3 installed in the gas discharge port 39 is locked. The reason and effect will be explained later.

The explosion prevention port 50 is configured to prevent the explosion due to the increase in pressure by the gas is not discharged in the oil collecting unit 30, one end of the tank so that the gas in the oil collecting unit 30 does not flow Locked in, the other end is made of an explosion-proof tube 51 made open to the outside. This may prevent explosion accidents by discharging water and gas in the oil collecting unit 30 to the outside when the pressure rises in the oil collecting unit 30.

In addition, the explosion-proof tube 51 is provided with a buoyancy port 52 that can move up and down in accordance with the change in the number of the oil collecting unit 30, the limit switch is touched by the buoyancy port (52). To be possible. This may allow the buoyancy hole 52 to notify the controller of an abnormal phenomenon by taking a limit switch according to the change in the number in the explosion-proof pipe 51 when the pressure rises in the oil collecting unit 30 so as to take emergency measures.

The check valves (V1, V2, V3, V4) usually use a check valve.

The pipe line (C) is configured to guide the discharge gas and water (water), and guides the gas discharged from the gas outlet 23 of the pyrolysis furnace 20 to the oil collecting unit 30 or the refining unit 40. It includes a gas discharge line (C1) and the water supply line (C2) for guiding the water and the precipitate recovered in the oil collecting unit 30 to the pyrolysis furnace (20).

The configuration of the gas recovery device (D) and the flue (D) is normal and is not limited to the configuration.

The gas recovery device (D) is configured to collect the gas discharged through the gas outlet 39 of the oil collecting unit 30, the gas initially discharged from the gas outlet 39 has a large amount of impurities in the heating furnace 10 It is preferable not to be collected so that it can be burned in the burner 11 which is a heating means.

The pyrolysis apparatus for oil recovery and solids produced in this way usually pyrolyzes waste in a step as shown in FIG. 6, and forms solids.

That is, the pyrolysis system using the pyrolysis device,

1. Pyrolysis step (S1)

The waste is introduced into the pyrolysis furnace 20, and the temperature is raised to the heating furnace 10 to pyrolyze the waste in a vacuum or high temperature state.

2. Oil separation step (S2)

The pyrolysis furnace 20 is a step of separating oil and foreign matter contained in the gas generated as the waste is pyrolyzed (see FIG. 7).

Ends of the first exhaust gas supply port 36 and the second exhaust gas supply port 41 installed in the oil collecting unit 30 and the refining unit 40, respectively, at the initial stage of the pyrolysis step (S1) with a hydraulic pressure applied thereto. The gas is not discharged from the pyrolysis furnace 20.

In addition, when the pyrolysis proceeds to increase the pressure, the gas discharged from the pyrolysis furnace 20 is discharged through the first discharge gas supply port 36 of the oil collecting unit 30, which has a low hydraulic pressure at the end, so that the oil is discharged. The collecting unit 30 recovers oil, moisture, and deposits that are foreign substances.

At this time, the valve V3 is placed in an open state so that the gas is discharged through the gas outlet 39.

3. Solidification Step (S3)

After the oil separation step (S2) is a step of solidifying the fine particles (1) in the pyrolysis furnace 20 by using the water and the precipitate (2) recovered from the oil collecting unit 30 (see Fig. 8).

After the oil separation step (S2) to open the valve (V2) to supply the water and sediment (2) in the pyrolysis furnace 20, the fine particles (1) in the pyrolysis furnace 20 in a high temperature state is the water and sediment Combination with (2) is made of a solid, wherein it is formed to a predetermined size using a stirrer.

4. Gas purification step (S4)

Cooling the gas discharged during the solidification step (S3) or after step (S3) in the refining unit 40 and removing foreign matters (including water).

The valve V3 is closed so that the gas discharged during the solidification step S3 or after the step S3 flows into the refining unit 40. At this time, the valve V2 is in a blocked state.

That is, when the valve V3 is closed, the discharged gas is discharged to the first discharge gas supply port 36 of the oil collecting unit 30 at the time of initial discharge, but the first and

second water tanks

31 and 32 are discharged. ), The pressure inside the) increases to discharge to the second exhaust gas supply port 41 of the refining unit 40.

The pyrolysis apparatus for oil recovery and solids production of the present invention and the pyrolysis system according to the present invention are to recover the water contained in the waste together with the sediment (2) as foreign matter during oil recovery, the water and the precipitate (2) ) Was supplied to the waste in the form of fine particles (1) to combine in a high temperature state to form a solid (3) to facilitate the discharge and collection.

In particular, the discharged solids may be used as a chemical fuel directly or through a separate treatment process, thereby having the advantage that can solve the problems caused by the conventional treatment with fine particles and deposits.

Claims

A pyrolyzer (A) comprising a pyrolysis furnace (20) including a heating furnace (10) including heating means for raising the temperature, and stirring means for stirring the waste introduced into the inside; In the pyrolysis device for pyrolyzing waste comprising an oil recovery device (B) configured to obtain oil from the exhaust gas discharged from the pyrolysis machine (A),

The oil recovery device (B) is obtained by separating the oil from the exhaust gas using a water tank in which water is stored, recovering water and sediment that are contained in the exhaust gas, and pyrolyzing the recovered water and sediment (2). Pyrolysis apparatus for oil recovery and solids production, characterized in that the fine particles are discharged to the solids (3) by supplying to the pyrolysis furnace 20 to be combined with the fine particles (1) remaining in the pyrolysis furnace (20) .
The method of claim 1,

The oil recovery device (B) is to separate and recover the oil contained in the exhaust gas with a specific gravity of the water by using water, the sediment is collected by the difference of the specific gravity on one side, the precipitate collected during the discharge of water and water Pyrolysis device for oil recovery and solids production, characterized in that it comprises an oil collecting unit 30 is discharged together.
The method of claim 2, wherein the oil collecting unit 30,

It is divided into a first tank 31, which is formed to collect and recover the oil is provided with a partition 33 is formed so that the sediment passage 34 is formed in the lower side, and the second tank 32 in which the sediment is collected,

The first tank 31, the bottom surface (31a) is made so that the sediment to precipitate is introduced into the second tank (32) through the sediment passage 34, the discharge gas discharged from the pyrolysis (A) is discharged The reverse flow prevention valve (V1) is provided at the end is provided, the end is provided with a first exhaust gas supply port 36 is installed so that the exhaust gas is discharged in the water to be discharged in the water, one side of the collected oil The oil outlet 37 for discharging is provided,

One side of the bottom portion of the second water tank 32 is provided with a sediment collecting unit 32b for collecting sediment, and a water-precipitate outlet 38 for discharging water in a portion of the sediment collecting unit 32b is formed.

At least one of the first tank 31 and the second tank 32 includes a gas outlet 39 provided with a valve (V3) for pressure control for oil recovery and solids generation Pyrolysis device.
The method according to any one of claims 1 to 3,

The pyrolyzer (A) comprises a heating furnace (10) including a burner (11) which is a temperature raising means on the lower side; The stirrer 21 is located above the furnace 10 and provided with a stirring blade that is a stirring means for pyrolyzing the waste, a waste inlet 22 for supplying waste to the upper side, and a gas outlet 23 through which the exhaust gas is discharged. And a pyrolysis furnace 20 including a water supply port 24 for supplying moisture to one side, and a solids outlet 25 for discharging the solids 3 downwardly.

The oil recovery device (B) has an air passage (35) on the upper side and a partition wall (33) having a sedimentation passage (34) formed on the lower side of the first tank (31) for collecting oil and a second for collecting sediment. Consisting of a water tank 32, the first water tank 31 is provided with a first exhaust gas supply port 36 in communication with the gas outlet 23, the sediment to precipitate can be moved to the second water tank (32). The bottom surface 31a is formed to be inclined so that the second tank 32 is formed with a sediment collecting unit 32b in which sediments are collected at one bottom portion, and a sediment is discharged when water is discharged at one side of the sediment collecting unit 32b. An oil collecting part 30 in which a water-precipitate outlet 38 is formed to be discharged together; Refining unit 40, which is separated from the oil collecting unit 30, and includes a second discharge gas supply port 41 having a reverse flow prevention valve (V4) at the end, and purifying the gas discharged using water Including,

The pyrolysis furnace 20 and the oil recovery device (B) are connected to the pipe line (C) to move the gas, water and sediment,

The pipe line (C), the gas discharge line (C1) to guide the discharge gas discharged to the gas discharge port 23 to the oil collecting unit 30 or the purification unit 40, and the oil collecting unit 30 A pyrolysis device for oil recovery and solids production, comprising a water supply line (C2) for supplying the collected water and sediment to the pyrolysis furnace (20).
The method of claim 4, wherein

It is installed so that the hydraulic pressure acting on the end of the second exhaust gas supply port 41 is greater than the hydraulic pressure acting on the end of the first exhaust gas supply port 36 to cause a difference in the discharge pressure of the exhaust gas. A pyrolysis device for recovering oil and producing solids.
By using a pyrolysis device including a pyrolysis device (A) for pyrolyzing waste, and an oil recovery device (B) configured to obtain oil from exhaust gas discharged from the pyrolysis machine (A),

A pyrolysis step (S1) of adding waste to the pyrolysis furnace of the pyrolysis unit (A), followed by stirring to increase the temperature and pyrolysis;

Oil separation step (S2) for separating the oil and sediment in the gas by passing the gas generated during the pyrolysis after the step (S1) progress or completion to the oil recovery device (B);

The pyrolysis system for oil recovery and solids production comprising a solidification step (S3) of supplying the water and precipitate recovered in the oil recovery device (B) to the pyrolysis furnace after the step (S2) to solidify the fine particles in the pyrolysis furnace.
The method of claim 6,

The oil recovery device (B) is divided into an oil collection unit 30 and a purification unit 40 accommodated in water,

The gas discharged from the pyrolysis furnace 20 is introduced into the oil collecting unit 30 after the pyrolysis step (S1) by the pressure difference, and after the solidification step (S3) is made to flow into the purification unit 40, The pyrolysis system for oil recovery and solids generation, characterized in that the initial discharge after the solidification step (S3) by the pressure change to be introduced into the oil collecting unit (30).