KR102589309B1 - Indirect heating type continuous pyrolysis apparatus - Google Patents

Abstract

The present invention relates to an indirect heating type continuous pyrolysis device that enables mass production of pyrolyzate through continuous pyrolysis and reduces the energy required for pyrolysis by heating raw materials with smoke generated during pyrolysis and burning the smoke while preheating. This indirect heating type continuous pyrolysis device includes a raw material input unit 10 for introducing raw materials, a raw material preheating unit 20 connected to the raw material input unit 10 and preheating the input raw materials while transferring them, and the raw material preheating unit 20 It includes a pyrolysis unit 30 connected to the pyrolysis unit 30 to receive and thermally decompose the preheated raw material, and a pyrolysis product discharge unit 40 connected to the pyrolysis unit 30 to airtightly discharge the pyrolyzed pyrolyzate.

Description

Indirect heating type continuous pyrolysis device {INDIRECT HEATING TYPE CONTINUOUS PYROLYSIS APPARATUS}

The present invention relates to a pyrolysis device, and more specifically, to enable mass production of pyrolyzate through continuous pyrolysis, and to reduce the energy required for pyrolysis by heating raw materials with smoke generated during pyrolysis and burning the smoke while preheating. It relates to an indirect heating continuous pyrolysis device.

In general, organic waste such as waste plastic, waste wood, sewage sludge, food waste, or livestock waste, if left in its natural state, causes environmental pollution.

Since these organic wastes can be fully utilized as an energy source, rather than simply discarding them, they can be actively utilized as a useful energy source by applying pyrolysis technology or gasification technology for stable treatment.

Here, the organic waste after going through the pyrolysis process has high thermal energy of more than 3000 kcal per kg. It is economically very useful to recover or utilize heat energy from the organic waste going through the pyrolysis process, and many technologies are being developed for this purpose.

Typically, pyrolysis technology for organic waste involves placing organic waste inside a pyrolysis tank, sealing it, and then exhausting the internal air to form an oxygen-free atmosphere. In this state, the pyrolysis tank is heated to supply high-temperature heat energy to the organic waste to initiate a pyrolysis reaction. It is done by causing.

However, the above prior art had the following problems.

Conventional pyrolysis devices had the problem of being unsuitable for large-scale pyrolysis because pyrolysis was confined to the inside of the pyrolysis tank.

In addition, the conventional pyrolysis device had the problem of requiring a lot of energy for pyrolysis because waste at room temperature had to be directly heated to 200°C or higher in order to pyrolyze organic waste.

Publication Patent No. 2018-0031122 “Waste plastic pyrolysis method and pyrolysis device” (2018.03.28.)

Accordingly, the present invention was devised to solve all the problems of the prior art as described above.

The purpose of the present invention is to provide an indirect heating type continuous pyrolysis device that enables mass production of pyrolyzate through continuous pyrolysis and reduces the energy required for pyrolysis by heating the raw material with the smoke generated during pyrolysis and burning the smoke while preheating. It is provided.

In order to achieve the above object, the “indirectly heated continuous pyrolysis device” according to the present invention includes a raw material input unit for inputting raw materials; A first transfer screw in which a motor-driven screw is provided inside, a first inlet formed in communication with the upper surface of one end of the first transfer screw and connected to the raw material input unit, and a lower surface of the other end of the first transfer screw a raw material preheating unit including a first outlet formed in communication with the first outlet and a first flue connected to an upper surface of the first transfer screw on one side of the first inlet; A pair of second transfer screws that are horizontally spaced apart from the lower part of the first transfer screw and have a motor-driven screw therein, are formed to communicate with the upper surface of the other end of the second transfer screw, and the first outlet is formed. A second inlet connected to, a second outlet formed in communication with the lower surface of one end of the second transfer screw, a central combustion chamber formed by a closed space between the second transfer screws, and A pair of side heating chambers formed by being divided into closed spaces on both lower sides of the second transfer screw and on both sides of the central combustion chamber, horizontally attached in communication with the lower surface of the central combustion chamber and connected to the first flue at the rear end. A pyrolysis unit including a combustion tube, a second flue connected to the front end of the combustion tube, an ignitor installed at a rear end of the combustion tube, and a plurality of electric heaters mounted along the outer surface of the side heating chamber; a pyrolyzed product discharge unit connected to the second outlet and transporting pyrolyzed products pyrolyzed and discharged through the second outlet in an airtight state; The raw material preheating unit preheats the raw material as smoke generated by heating the raw material in the pyrolysis unit flows into the interior of the first transfer screw through the first outlet and is discharged into the first flue. In the pyrolysis unit, the raw material introduced through the second inlet is thermally decomposed as it is transferred from the inside of the second transfer screw toward the second outlet by heating by the electric heater, and smoke generated by the thermal decomposition of the raw material is heated by the electric heater. It is characterized in that it flows into the combustion tube through the flue, is burned in the combustion tube by the ignitor, and is used as a heat source for thermal decomposition of raw materials.

In addition, the raw material input portion of the “indirectly heated continuous pyrolysis device” according to the present invention includes an input screw whose upper end is connected to the first input port and a motor-driven screw is provided therein and is inclined, and a lower upper surface of the input screw. It includes a hopper mounted in communication with the raw material preheating unit, and further includes a plurality of inspection covers that are openable and closed on the upper surface of the first transfer screw.

In addition, the pyrolytic material discharge part of the “indirectly heated continuous pyrolysis device” according to the present invention includes a first discharge screw provided horizontally below the second discharge port and having a motor-driven screw therein, and the first discharge A third inlet formed in communication with the upper surface of one side of the screw and connected to the lower end of the second outlet, a third outlet formed in communication with the lower surface of the other side of the first discharge screw, and an upper part from the lower part of the third outlet A second discharge screw inclined to the side and having a motor-driven screw therein, a fourth inlet formed in communication with an upper surface of one side of the second discharge screw and connected to the lower end of the third discharge port, and the second discharge It is characterized by comprising a fourth discharge port formed in communication with the lower surface of the other side of the screw, and a discharge impeller connected to the lower surface of the fourth discharge port and discharging thermal decomposition products in an airtight state.

In addition, the “indirectly heated continuous pyrolysis device” according to the present invention includes an oil-water separator installed on the pipe of the first flue to separate dust and liquid contained in the smoke discharged through the first flue; a fire extinguishing tank connected to an injection pipe connected to the rear upper surface of the first transfer screw, an opening/closing valve installed in the piping of the injection pipe, connected to the upper end of the injection pipe, and filled with water for fire extinguishing therein; It is characterized by including more.

In addition, the "indirectly heated continuous pyrolysis device" according to the present invention includes a drying screw in which the end of the second flue is connected to the tip, the discharged smoke flows into the interior, and a motor-driven screw is provided therein, and the drying screw A fifth inlet formed in communication with the upper surface of the rear end of the drying screw, a fifth outlet formed in communication with the lower surface of the tip of the drying screw, and a third flue connected to one side of the fifth inlet in communication with the upper surface of the drying screw. a dryer capable of drying raw materials; a dust collector installed on the pipe of the third flue to collect dust contained in smoke discharged through the third flue; It is characterized by including more.

In addition, the “indirectly heated continuous pyrolysis device” according to the present invention is connected to a connection pipe connected to the pipe of the second flue, and an end of the connection pipe, and generates steam with high-temperature smoke flowing in through the connection pipe. A steam generator including a steam generator that generates steam, and a steam storage tank connected to the steam generator to store steam discharged from the steam generator; It is characterized by including more.

As described above, the present invention enables mass production of pyrolyzate through continuous pyrolysis, and the energy required for pyrolysis is reduced by heating the raw material with the smoke generated during pyrolysis and burning the smoke while preheating, thereby reducing the cost of pyrolysis. It has the effect of producing thermal decomposition products with high energy efficiency.

1 is a schematic perspective view of a pyrolysis device according to the present invention;
Figure 2 is a schematic front view of the pyrolysis device according to the present invention;
3 is a schematic plan view of a pyrolysis device according to the present invention;
4 is a schematic rear perspective view of the pyrolysis device according to the present invention;
Figure 5 is a schematic exploded perspective view of the main part of the thermal decomposition device according to the present invention;
6 is a schematic side cross-sectional view of the main part of the pyrolysis device according to the present invention;
Figure 7 is a schematic main longitudinal cross-sectional view of the pyrolysis device according to the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings. However, it should be understood that the invention may be implemented in many different forms and is not limited to the described embodiments.

1 to 7 are schematic diagrams of a thermal decomposition device according to the present invention. As shown, the indirect heating type continuous pyrolysis device according to the present invention includes a raw material input unit 10 for introducing raw materials, and a raw material preheating unit 20 connected to the raw material input unit 10 and preheating the input raw materials while transferring them. ), a pyrolysis unit 30 connected to the raw material preheating unit 20 to receive and pyrolyze the preheated raw material, and a pyrolysis material discharge unit connected to the pyrolysis unit 30 to airtightly discharge the pyrolyzed pyrolyzate ( 40).

The raw material input unit 10 is connected to the raw material preheating unit 20 and serves to input raw materials into the raw material preheating unit 20.

The raw material input unit 10 has an inclined input screw 11, the upper end of which is connected to the first input port 22, a motor-driven screw is provided therein, and a lower upper surface of the input screw 11. It includes a hopper (12) mounted in communication with. The input screw 11 serves to raise and pressurize the raw material introduced through the hopper 12 to feed the raw material into the raw material preheating unit 20 while minimizing the inflow of external air.

The raw material preheating unit 20 is formed in communication with a first transfer screw 21 in which a motor-driven screw is provided inside, and the upper surface of one side of the first transfer screw 21, and the raw material input unit 10 A first inlet 22 connected to a first outlet 23 formed in communication with the lower surface of the other end of the first transfer screw 21, and the first transfer to one side of the first inlet 22. It includes a first flue (24) connected to the upper surface of the screw (21).

The raw material preheating unit 20 is such that the raw material is heated in the pyrolysis unit 30 and high-temperature smoke generated during pyrolysis flows into the inside of the first transfer screw 21 through the first outlet 23. It serves to preheat the raw material transferred through the first transfer screw 21 as it flows in and is discharged into the first flue 24.

In this way, by recycling the high-temperature smoke discarded to the outside by the raw material preheating unit 20, the raw material can be preheated before being input into the pyrolysis unit 30, thereby reducing the energy required for pyrolysis.

The first transfer screw 21 serves to slowly transfer the raw material introduced through the first inlet 22 to the first outlet 23 as the screw provided inside is driven by a motor, and the first inlet ( 22) is connected to the input screw 11 and serves to provide a passage through which raw materials are introduced into the first transfer screw 21, and the first outlet 23 is connected to the first transfer screw 21. ) serves to provide a passage through which preheated raw materials are discharged from the second transfer screw 31. The first flue 24 serves to provide a passage through which smoke is discharged.

The raw material preheating unit 20 further includes a plurality of inspection covers 25 that are opened and closed on the upper surface of the first transfer screw 21. The inspection cover 25 allows the upper surface of the first transfer screw 21 to be opened and closed so that the interior of the first transfer screw 21 can be easily inspected and cleaned.

The pyrolysis unit 30 includes a pair of second transfer screws 31 that are horizontally spaced apart from each other below the first transfer screw 21 and have a motor-driven screw therein, and the second transfer screw A second inlet 32 formed in communication with the upper surface of the other side end of (31) and connected to the first outlet 23, and a second outlet formed in communication with the lower surface of one end of the second transfer screw 31. (33) and a central combustion chamber (34) formed by dividing the space between the second transfer screw (31) into a closed space, and the lower portions on both sides of the second transfer screw (31) and the central combustion chamber (34). ), a pair of side heating chambers (35) formed by being divided into closed spaces on both sides of the central combustion chamber (34), horizontally attached in communication with the lower surface of the central combustion chamber (34) and connected to the first flue (24) at the rear end. The outer surface of the combustion pipe 36, the second flue 37 connected to the tip of the combustion pipe 36, the ignitor 38 installed at the rear end of the combustion pipe 36, and the side heating chamber 35. It includes a number of electric heaters (39) mounted along.

The pyrolysis unit 30 moves the raw material introduced through the second inlet 32 from the inside of the second transfer screw 31 toward the second outlet 33 by heating the electric heater 39. It is continuously thermally decomposed in large quantities as it is transported.

In addition, the pyrolysis unit 30 causes smoke generated by thermal decomposition of raw materials to flow into the combustion pipe 36 through the first flue 24 and combust in the combustion pipe 36 through the ignitor 38. By allowing the emitted smoke to be reused as a heat source for pyrolysis of raw materials, the energy required for pyrolysis is reduced.

The second transfer screw 31 serves to slowly transport the preheated raw material introduced through the second inlet 32 while mixing it to the second outlet 33. It is connected to the first outlet 23 and serves to provide a passage through which raw materials are introduced into the second transfer screw 31, and the second outlet 33 is connected to the second transfer screw 31. It serves to provide a passage through which thermal decomposition products are discharged to the thermal decomposition discharge unit 40.

The central combustion chamber 34 is in communication with the combustion pipe 36 and heats the inside of the second transfer screw 31 by the heat of the smoke ignited and burned in the combustion pipe 36 by the ignition 38. The side heating chamber 35 is heated on the inside by the electric heater 39 and serves to heat the outer lower part of the transfer screw. Due to this heating, the raw material is carbonized or thermally decomposed while being slowly transferred through the second transfer screw 31.

The combustion pipe 36 is connected to the first flue 24 and serves to heat the interior of the central combustion chamber 34 by burning smoke supplied through the first flue 24, and the second flue 24 is connected to the combustion pipe 36. (37) serves to provide a passage through which the high-temperature gas remaining after combustion in the combustion tube (36) is discharged to the outside.

The ignitor 38 is a known device that ignites combustion gases such as smoke to cause combustion. The electric heater 39 is a known one that is equipped with a heating wire, etc., and heats the air inside the side heating chamber 35 by supplying electricity.

The pyrolytic material discharge unit 40 is connected to the second outlet 33, and serves to transport the pyrolytic material discharged through pyrolysis through the second outlet 33 in an airtight state and discharge it to the outside. .

The thermal decomposition discharge portion 40 includes a first discharge screw 41 provided horizontally below the second discharge port 33 and having a motor-driven screw therein, and the first discharge screw 41. ( 43), and a second discharge screw 44 that is inclined from the lower part of the third discharge port 43 to the upper side and has a motor-driven screw therein, and is connected to one upper surface of the second discharge screw 44. a fourth inlet 45 connected to the lower end of the third outlet 43, a fourth outlet 46 formed in communication with the other lower surface of the second outlet screw 44, and the fourth outlet 46 connected to the lower end of the third outlet 43. It includes a discharge impeller (47) connected to the lower surface of the discharge port (46).

The first discharge screw 41 is installed perpendicular to the second transfer screw 31 and serves to transfer the thermal decomposition product discharged from the second transfer screw 31 to the second discharge screw 44. , the third inlet 42 is connected to the second outlet 33 and serves to provide a passage through which pyrolyzed products are introduced into the first discharge screw 41, and the third outlet 43 Serves to provide a passage through which thermal decomposition products are discharged from the first discharge screw 41 to the second discharge screw 44.

The second discharge screw 44 is installed perpendicular to the first discharge screw 41 and inclined upward, and serves to raise the pyrolytic material discharged from the first discharge screw 41 and transport it in a compressed state. , the fourth inlet 45 is connected to the third outlet 43 and serves to provide a passage through which pyrolyzed products are introduced into the second discharge screw 44, and the fourth outlet 46 Serves to provide a passage through which thermal decomposition products are discharged from the second discharge screw 44 to the outside, and the discharge impeller 47 prevents the inflow of external air as multiple blades are rotated by being driven by a motor. , that is, it serves to discharge thermal decomposition products to the outside in an airtight state.

This pyrolysis device further includes an oil-water separator 50 installed in the pipe of the first flue 24, and a fire extinguishing tank 60 connected to the first transfer screw 21.

The oil-water separator 50 is a cyclone-type collector that allows recovery of oil and moisture while separating dust and liquid contained in the smoke discharged through the first flue 24.

The fire extinguishing tank 60 is connected to the injection pipe 61 connected to the rear upper surface of the first transfer screw 21, and an opening and closing valve 62 is installed in the pipe of the injection pipe 61, and the injection pipe ( It is connected to the top of 61) and filled with fire extinguishing water inside. In the event of a fire or other emergency, the worker operates the opening/closing valve 62 to open the injection pipe 61, thereby transferring the stored fire extinguishing water to the first It is put into the inside of the transfer screw 21 and the second transfer screw 31 to ensure extinguishing.

This pyrolysis device includes a dryer 70 connected to the second flue 37, a dust collector 80 installed in the dryer 70, and a steam generator 90 connected to the second flue 37. It further includes.

The dryer 70 includes a drying screw 71 in which the end of the second flue 37 is connected to the tip so that discharged smoke flows into the interior and a motor-driven screw is provided therein, and the drying screw 71 A fifth inlet 72 formed in communication with the upper surface of the rear end of the drying screw 71, a fifth outlet 73 formed in communication with the bottom surface of the tip of the drying screw 71, and the drying machine is disposed on one side of the fifth inlet 72. It includes a third flue 74 connected in communication with the upper surface of the screw 71.

The dryer 70 operates while dried materials such as raw materials introduced into the drying screw 71 through the fifth inlet 72 are slowly transferred to the fifth outlet 73 by the drying screw 71. The high-temperature waste gas discharged through the second flue 37 flows back and utilizes the waste heat to dry the raw materials.

The dust collector 80 is installed on the pipe of the third flue 74, and has a filter built inside, which is known to collect dust contained in smoke discharged through the third flue 74. .

The steam generator 90 is connected to a connection pipe 91 connected to the pipe of the second flue 37, and an end of the connection pipe 91, and the high temperature flowing in through the connection pipe 91. It includes a steam generator 92 that generates steam with smoke, and a steam storage tank 93 connected to the steam generator 92 and storing steam discharged from the steam generator 92.

The steam generator 90 serves to generate and store steam by utilizing the waste heat of the high-temperature waste gas discharged through the second flue 37. Steam stored in this way can be used as a heat source in places where it is needed, such as heating.

The operational relationship of this pyrolysis device configured as described above is described as follows.

When the raw material is input into the first transfer screw 21 through the input screw 11, the first transfer screw 21 slowly transfers the input raw material to the end. At this time, the high-temperature smoke generated in the second transfer screw 31 flows in the opposite direction to the transfer direction of the raw material inside the first transfer screw 21 and is transferred through the first transfer screw 21. The raw materials are preheated.

The preheated raw material is introduced into the second transfer screw 31 and slowly transferred, and is indirectly heated by the central combustion chamber 34 and the side heating chamber 35 to achieve thermal decomposition.

The high-temperature smoke generated during thermal decomposition passes through the first transfer screw 21 and flows into the combustion pipe 36 through the first flue 24, is ignited, and is burned, so that it is reused to heat the central combustion chamber 34. do. The high-temperature exhaust gas discharged after combustion in the combustion pipe 36 is discharged through the second flue 37 and flows into the dryer 70 and the steam generator 90 to recover waste heat.

In addition, the pyrolyzed products that are continuously pyrolyzed while being transported through the second transfer screw 31 are continuously discharged to the outside through the pyrolysis discharge unit.

Although the preferred embodiments of the present invention have been described above, various changes, modifications, and equivalents may be used in the present invention. It is clear that the present invention can be equally applied by appropriately modifying the above embodiment. Accordingly, the above description does not limit the scope of the present invention, which is defined by the limitations of the claims below.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but it will be obvious to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

10: Raw material input section
11: Insertion screw 12: Hopper
20: Raw material preheating unit
21: first transfer screw 22: first inlet
23: first outlet 24: first flue
25: Inspection cover
30: Thermal decomposition section
31: second transfer screw 32: second inlet
33: second outlet 34: central combustion chamber
35: side heating chamber 36: combustion pipe
37: Second flue 38: Igniter
39: Electric heater
40: Thermal decomposition product discharge unit
41: first discharge screw 42: third inlet
43: Third discharge port 44: Second discharge screw
45: fourth inlet 46: fourth outlet
47: Discharge impeller
50: Oil-water separator
60: Fire extinguishing tank
61: Injection pipe 62: Open/close valve
70: dryer
71: Drying screw 72: Fifth inlet
73: 5th outlet 74: 3rd flue
80: dust collector
90: Steam generation unit
91: connector 92: steam generator
93: Steam storage tank

Claims (6)

A raw material input unit (10) for inputting raw materials;
A first feed screw 21 with a motor-driven screw installed therein, and a first inlet 22 formed in communication with the upper surface of one side of the first feed screw 21 and connected to the raw material input portion 10. ), a first outlet 23 formed to communicate with the lower surface of the other end of the first transfer screw 21, and one side of the first inlet 22 connected to the upper surface of the first transfer screw 21. a raw material preheating unit (20) including a first flue (24);
A pair of second transfer screws (31) horizontally spaced apart from each other below the first transfer screw (21) and having a motor-driven screw therein, and an upper surface of the other end of the second transfer screw (31) A second inlet 32 formed in communication with the first outlet 23 and connected to the first outlet 23, a second outlet 33 formed in communication with the lower surface of one end of the second transfer screw 31, and 2 A central combustion chamber (34) formed by dividing the space between the transfer screws (31) into closed spaces, and a closed space on both lower sides of the second transfer screw (31) and on both sides of the central combustion chamber (34). A pair of side heating chambers (35) formed by being partitioned, a combustion pipe (36) attached horizontally and in communication with the lower surface of the central combustion chamber (34) and connected to the first flue (24) at the rear end, and A second flue 37 connected to the tip of the combustion pipe 36, an ignitor 38 installed at the rear end of the combustion pipe 36, and a plurality of electrical appliances mounted along the outer surface of the side heating chamber 35. A pyrolysis unit 30 including a heater 39;
A pyrolyzed product discharge unit 40 connected to the second outlet 33 and transporting the pyrolyzed product pyrolyzed and discharged through the second outlet 33 in an airtight state;
The end of the second flue 37 is connected to the tip so that the discharged smoke flows inside and communicates with the drying screw 71, which has a motor-driven screw therein, and the rear upper surface of the drying screw 71. A fifth inlet 72 is formed, a fifth outlet 73 is formed in communication with the bottom surface of the tip of the drying screw 71, and an upper surface of the drying screw 71 is formed on one side of the fifth inlet 72. a dryer (70) capable of drying raw materials, including a third flue (74) connected in communication with;
A dust collector (80) installed on the pipe of the third flue (74) to collect dust contained in smoke discharged through the third flue (74); Contains,
The raw material preheating unit 20,
Smoke generated by heating the raw material in the pyrolysis unit 30 flows into the interior of the first transfer screw 21 through the first outlet 23 and is discharged into the first flue 24, thereby discharging the raw material. Preheat,
The thermal decomposition unit 30,
The raw material introduced through the second inlet 32 is thermally decomposed while being transferred from the inside of the second transfer screw 31 toward the second outlet 33 by heating by the electric heater 39, and the raw material is heated. Smoke generated from pyrolysis flows into the combustion pipe 36 through the first flue 24 and is burned in the combustion pipe 36 by the ignitor 38 to be used as a heat source for thermal decomposition of raw materials. An indirect heating type continuous pyrolysis device.
According to paragraph 1,
The raw material input unit 10,
An input screw (11) whose upper end is connected to the first input port (22) and which has a motor-driven screw installed therein and is provided at an angle;
It includes a hopper (12) mounted in communication with the lower upper surface of the input screw (11),
The raw material preheating unit 20,
An indirect heating type continuous pyrolysis device, characterized in that it further includes a plurality of inspection covers (25) that are opened and closed on the upper surface of the first transfer screw (21).
According to paragraph 1,
The thermal decomposition product discharge unit 40,
A first discharge screw (41) provided horizontally below the second discharge port (33) and having a motor-driven screw therein,
A third inlet 42 formed in communication with the upper surface of one side of the first discharge screw 41 and connected to the lower end of the second outlet 33, respectively,
A third discharge port (43) formed in communication with the other lower surface of the first discharge screw (41),
a second discharge screw 44 that is inclined from the lower part of the third discharge port 43 to the upper side and has a motor-driven screw therein;
A fourth inlet 45 formed in communication with one upper surface of the second discharge screw 44 and connected to the lower end of the third discharge port 43,
A fourth discharge port (46) formed in communication with the other lower surface of the second discharge screw (44),
A discharge impeller (47) connected to the lower surface of the fourth discharge port (46) and discharging thermal decomposition products in an airtight state,
An indirect heating continuous pyrolysis device comprising:
According to paragraph 1,
The pyrolysis device is,
An oil-water separator (50) installed on the pipe of the first flue (24) to separate dust and liquid contained in the smoke discharged through the first flue (24);
It is connected to the injection pipe 61 connected to the rear upper surface of the first transfer screw 21, and an opening/closing valve 62 is installed in the pipe of the injection pipe 61, and at the upper end of the injection pipe 61. A fire extinguishing tank (60) connected and filled with water for fire extinguishing;
An indirect heating continuous pyrolysis device comprising:
delete According to paragraph 1,
The pyrolysis device is,
A connection pipe (91) connected to the pipe of the second flue (37), and steam that is connected to the end of the connection pipe (91) and generates steam with high-temperature smoke flowing in through the connection pipe (91). A steam generator 90 including a generator 92 and a steam storage tank 93 connected to the steam generator 92 and storing steam discharged from the steam generator 92;
An indirect heating continuous pyrolysis device comprising: