Solid organic waste horizontal pyrolyzing furnace with multi-stage shearing structure

Abstract

The invention discloses a horizontal solid organic waste pyrolyzing furnace with a multi-stage shearing structure, belongs to the technical field of pyrolyzing furnaces, and aims to improve a traditional single straight-through furnace body structure and divide the whole pyrolyzing furnace into a pyrolyzing part and a preheating part. A shearing discharging column in a preheating part is used for carrying out continuous batch grinding smashing and preheating treatment on organic solid waste, the material granularity is reduced, the pyrolysis speed is increased, in the main pyrolysis link, a double-barrel furnace type structure composed of a pyrolysis barrel and a pyrolysis part is arranged, and under the rotation effect of multiple sets of shearing plates, the pyrolysis barrel and the pyrolysis part can be used for carrying out pyrolysis on the organic solid waste. Small-particle solid waste is in a continuous'upward turning-downward scattering 'multi-stage shearing state, materials are conveyed to the end part of the pyrolysis part along the inclined surface of the shearing plate in the upward turning process, and in the process, generated waste gas, carbon residues and pyrolysis oil are continuously separated through an exhaust passage, a residue discharge opening and an oil discharge hole respectively; and the heat-conducting property in the furnace is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pyrolysis furnaces, and more specifically, to a horizontal pyrolysis furnace for solid organic waste with a multi-stage shearing structure. Background Art

[0002] Organic solid waste refers to organic solid waste generated in the process of people's production and life, which has lost its original value and is discarded. The main methods for treating these organic solid wastes include landfill, biodegradation, incineration, pyrolysis, etc.

[0003] Pyrolysis refers to the method of heating organic solid waste at high temperature under anaerobic conditions to decompose it into gaseous, liquid, and solid products. It is currently one of the most promising organic solid waste treatment technologies. The most significant advantage is less capital investment, and the gas generated after pyrolysis can be used as fuel.

[0004] Most of the existing pyrolysis furnaces are of a single cylinder structure. For example, the patent number CN113462411B discloses a horizontal pyrolysis device for solid waste treatment, which drives the pyrolysis furnace to rotate to continuously turn the solid waste in the furnace. However, due to the single straight-through cylinder structure, even if the furnace body rotates circumferentially, the turning degree of the solid waste is limited, and the solid waste is still likely to accumulate at the bottom of the furnace body under the action of gravity, resulting in uneven heating of the solid waste and reducing the pyrolysis efficiency of the solid waste.

[0005] In addition, during the pyrolysis process, pyrolysis gas, pyrolysis oil, and solid carbon slag and other products are continuously generated in the furnace body. Generally, a slag discharge port and an exhaust port are opened on one side of the furnace body, and it is impossible to separate the waste gas, carbonized carbon slag, and pyrolysis oil from the reactants in a short distance in a timely manner during the pyrolysis process, resulting in a reduction in the heat conduction efficiency in the furnace body.

[0006] Therefore, a horizontal pyrolysis furnace for solid organic waste with a multi-stage shearing structure is proposed to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to solve the problems that it is difficult to achieve uniform heating of the materials in the furnace and it is impossible to synchronously separate and discharge the pyrolysis products during the pyrolysis process in a traditional single straight-through cylinder structure pyrolysis furnace, and now a horizontal pyrolysis furnace for solid organic waste with a multi-stage shearing structure is provided.

[0008] The object of the present invention can be achieved by the following technical solutions: a horizontal pyrolysis furnace for solid organic waste with a multi-stage shearing structure, including a horizontally arranged pyrolysis section, a preheating section, and a feeding mechanism. Inside the preheating section, a heating cylinder is fixedly installed, which is connected to the feeding mechanism and extends to the outer end of the pyrolysis section at the other end. A rotating cylinder is rotatably driven on the heating cylinder, and inner material ports and outer material ports that communicate inside and outside are respectively opened on the end walls of the heating cylinder and the rotating cylinder located inside the preheating section. A shearing discharge column that communicates with the outer material port is fixedly sleeved on the rotating cylinder;

[0009] The pyrolysis section is a conical structure with an inner diameter gradually decreasing towards the preheating section end. The left and right ends of the rotating cylinder are respectively movably sleeved with a right partition and a left partition fixedly installed at the ends of the pyrolysis section and the preheating section. An inlet port adapted to the shearing discharge column is opened at the top of the right partition. A pyrolysis cylinder with multiple slag discharge holes opened at the bottom and communicating with the inlet port is fixed between the left partition and the right partition. Multiple groups of shearing plates are distributed on the end wall of the rotating cylinder located inside the pyrolysis cylinder;

[0010] An exhaust port is horizontally opened on the upper end wall of the pyrolysis cylinder. A slag discharge ring cavity is reserved between the outer wall of the pyrolysis cylinder and the inner wall of the pyrolysis section. Multiple oil discharge holes communicating with the slag discharge ring cavity are opened on the bottom end wall of the pyrolysis section.

[0011] Further, the feeding mechanism includes a feeding cylinder fixedly installed at the end of the preheating section. A spiral feeding blade that penetrates and extends into the heating cylinder and corresponds to the position of the inner material port is rotatably installed inside the feeding cylinder, which is used to continuously convey large-particle organic solid waste to be pyrolyzed into the heating cylinder through the feeding mechanism, and is introduced into the preheating section through the inner material port and the outer material port for rolling and crushing treatment.

[0012] Further, a partition is fixedly installed inside the heating cylinder near the position of the inner material port. Multiple heating tubes are embedded and installed inside the heating cylinder on the side away from the inner material port. The heating tubes and the inner material port are isolated by the partition installed inside the heating cylinder.

[0013] Further, the shearing discharge column is a spiral structure fixed to the outer end wall of the rotating cylinder and its outer diameter gradually increases in the clockwise direction. A blanking gap corresponding to the position of the outer material port and opening on the side close to the feeding mechanism is opened at the bottom end of the shearing discharge column.

[0014] Further, a shoveling plate that is movably attached to the inner wall of the preheating section is fixedly installed on the side with the longest outer diameter of the shearing discharge column, and an inclined cavity that inclines downward towards the right partition and is adapted to the inlet port is opened at one end of the shearing discharge column near the shoveling plate.

[0015] Further, a plurality of groups of shear sawteeth and stirring rods are arranged at intervals along the spiral direction of the outer end wall of the shearing and discharging column. Each group of shear sawteeth and stirring rods has a plurality of them and is horizontally distributed along the horizontal plane of the shearing and discharging column. Moreover, the sizes and lengths of the shear sawteeth and stirring rods gradually decrease along the spiral direction extending outward from the shearing and discharging column.

[0016] Further, a plurality of groups of shear plates are arranged horizontally and staggered front and back. Each group of shear plates is annularly distributed on the rotating cylinder and is inclined towards the left partition board.

[0017] Further, the pyrolysis part includes an outer cylinder and an inner cylinder which are sleeved with each other. The oil discharge holes are evenly distributed on the inner bottom wall of the inner cylinder. The inner bottom wall of the outer cylinder is embedded and installed with an oil discharge tank communicated with a plurality of oil discharge holes.

[0018] Further, a slag discharge port communicated with the slag discharge ring cavity is opened on the bottom end wall of the left partition board. A slag discharge space is reserved between the left partition board and the outer end of the pyrolysis part. A slag discharge hopper with one end communicated with the slag discharge port and the other end penetrating through to the bottoms of the outer cylinder and the inner cylinder is arranged in the slag discharge space.

[0019] Compared with the prior art, the advantages of the present invention are as follows:

[0020] 1. This solution improves the traditional single straight-through furnace body structure and is set into a double-cylinder furnace structure composed of a pyrolysis cylinder and a pyrolysis part. Organic solid waste enters the pyrolysis cylinder. Under the rotating action of a plurality of groups of shear plates, the organic solid waste continuously "tumbles upward - scatters downward". During the upward tumbling process of the material, it is conveyed along the inclined surface of the shear plate towards the end of the pyrolysis part. This not only realizes the large-area diffusion distribution of the material in the pyrolysis cylinder, provides good heat uniformity, but also realizes the continuous conveying of the material. The generated waste gas is directly discharged upward through the exhaust duct. The generated carbon slag and pyrolysis oil substances fall into the slag discharge ring cavity through the slag discharge holes during the large-amplitude turning of the shear plates and are conveyed along the conical inclined surface of the pyrolysis part towards the slag discharge port. In this process, the oil discharge holes on the bottom wall of the pyrolysis part are used to separate the pyrolysis oil and carbon slag over a long distance, realizing the timely separation of pyrolysis products during the pyrolysis process to improve the heat conduction performance in the furnace.

[0021] 2. This solution also divides the entire pyrolysis furnace into a horizontally arranged pyrolysis part and a preheating part. The shearing and discharging column in the preheating part is used to roll and crush and preheat the input organic solid waste. The solid waste is introduced into the preheating part, and the shearing and discharging column is driven to rotate counterclockwise. Its outer end wall gradually contacts the solid waste falling into the interior of the preheating part, and the solid waste is fully sheared and crushed by the contact roller pressing method of gradually increasing the extrusion pressure.

[0022] In this process, during one full rotation of the shearing and discharging column, the blanking gap at the bottom of the shearing and discharging column rotates upward to seal the inner material inlet. During this process, the feeding mechanism is used to store materials in the heating cylinder. After one full rotation of the shearing and discharging column, the small-particle solid waste at the bottom is pushed upward and gathered in the inclined cavity by the shoveling plate. During the process when the inclined cavity is connected to the feeding port, the small-particle solid waste is introduced into the pyrolysis cylinder through the inclined surface of the inclined cavity and the feeding port. After the blanking gap rotates to the lower part and is connected to the outer material outlet, the next round of feeding is carried out. In this way, continuous batch feeding, rolling and crushing, and preheating treatment of the organic solid waste are achieved. Description of the Drawings

[0023] Figure 1 is a schematic diagram of the external structure of the present invention;

[0024] Figure 2 is a partial cross-section of the present invention Figure 1 ;

[0025] Figure 3 is a partial cross-section of the present invention Figure 2 ;

[0026] Figure 4 is an internal cross-sectional view of the combination of the pyrolysis part and the preheating part of the present invention;

[0027] Figure 5 is a bottom view of the combination of the rotating cylinder, the shearing and discharging column, and the shearing plate of the present invention;

[0028] Figure 6 is a schematic diagram of the structure when the heating cylinder and the rotating cylinder of the present invention are detached from each other;

[0029] Figure 7 is a partial internal cross-sectional view of the present invention;

[0030] Figure 8 is a schematic diagram of the structure when the rotating cylinder drives the shearing and discharging column and multiple groups of shearing plates to flip Figure 1 ;

[0031] Figure 9 is a schematic diagram of the structure when the rotating cylinder drives the shearing and discharging column and multiple groups of shearing plates to flip Figure 2 ;

[0032] Figure 10 is a cross-sectional view when the solid waste is discharged from the outer material outlet when the rotating cylinder drives the shearing and discharging column to initially rotate in the present invention;

[0033] Figure 11 is a cross-sectional view when the rotating cylinder drives the shearing and discharging column to rotate nearly one week and drives the solid waste at the bottom of the preheating part upward in the present invention;

[0034] Explanation of the reference numerals in the drawings:

[0035] 1. Pyrolysis section; 11. Outer cylinder; 12. Inner cylinder; 13. Drain oil tank; 14. Slag discharge hopper; 15. Exhaust duct; 2. Preheating section; 3. Feeding mechanism; 31. Feeding cylinder; 32. Spiral feeding piece; 4. Heating cylinder; 401. Inner material inlet; 402. Heating pipe; 5. Rotating cylinder; 501. Outer material inlet; 6. Left partition; 601. Slag discharge port; 7. Right partition; 701. Feeding port; 8. Pyrolysis cylinder; 9. Shearing and discharging column; 901. Shearing saw teeth; 902. Stirring rod; 903. Inclined cavity; 904. Shoveling plate; 10. Shearing plate. Specific embodiments

[0036] The following will combine the drawings in the embodiments of the present invention; the technical solutions in the embodiments of the present invention will be clearly and completely described; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] Embodiment 1: In view of the actual situation that it is difficult to achieve uniform heating of the materials in the furnace and it is impossible to synchronously separate and discharge the pyrolysis products during the pyrolysis process for the traditional single straight-through cylinder structure pyrolysis furnace, the following technical solutions are proposed:

[0038] The present invention discloses a horizontal pyrolysis furnace for solid organic waste with a multi-stage shearing structure. Please refer to Figure 1 , which includes a horizontally arranged pyrolysis section 1, a preheating section 2, and a feeding mechanism 3 installed at the other end of the preheating section 2. Heating devices are provided outside both the pyrolysis section 1 and the preheating section 2. The heating devices heat-treat the pyrolysis section 1 and the preheating section 2, so that the internal parts of the pyrolysis section 1 and the preheating section 2 are respectively in a high-temperature pyrolysis environment and a medium-high temperature preheating environment, and their specific environmental temperatures are set according to the actual pyrolysis products required.

[0039] Please refer to Figures 2 - 4 , a heating cylinder 4 fixedly installed inside the preheating section 2 and communicating with the feeding end of the feeding mechanism 3 and having the other end extending to the outer end of the pyrolysis section 1 is provided. A rotating cylinder 5 is rotatably driven on the heating cylinder 4. Inner material inlets 401 and 501 that are internally and externally connected are respectively opened on the end walls of the heating cylinder 4 and the rotating cylinder 5 located inside the preheating section 2. A partition is fixed inside the heating cylinder 4 near the position of the inner material inlet 401. A plurality of heating pipes 402 are embedded and installed inside the heating cylinder 4 on the side away from the inner material inlet 401. The heating pipes 402 are isolated from the inner material inlet 401 by a partition installed inside the heating cylinder 4. The setting of the heating pipes 402 further increases the temperature of the pyrolysis environment inside the pyrolysis section 1, realizing relatively uniform internal and external temperatures inside the pyrolysis section 1.

[0040] A driving structure for rotatably driving the rotary cylinder 5 is provided at the end of the pyrolysis section 1 away from the feeding mechanism 3. The driving structure can be composed of a driving motor and an associated gear set. One of the gears in the gear set is fixedly sleeved on the end of the rotary cylinder 5, and the other meshing gear is rotatably installed at the end of the pyrolysis section 1 and connected to the driving end of the driving motor, so as to realize the fixed installation of the heating cylinder 4 and the rotary installation of the rotary cylinder 5 located outside the heating cylinder 4.

[0041] The feeding mechanism 3 includes a feeding cylinder 31 fixedly installed at the end of the preheating section 2. A spiral feeding sheet 32 that penetrates and extends into the heating cylinder 4 and corresponds to the inner material port 401 is rotatably installed inside the feeding cylinder 31. A shearing discharge column 9 communicating with the outer material port 501 is fixedly sleeved on the end wall of the rotary cylinder 5 located inside the preheating section 2. A feeding port 701 adapted to the shearing discharge column 9 is provided at the top of the right partition 7.

[0042] The feeding mechanism 3 is used to continuously convey large-particle organic solid waste to be pyrolyzed into the heating cylinder 4, and introduce it into the preheating section 2 through the inner material port 401 and the outer material port 501. In this process, the shearing discharge column 9 that rotates synchronously with the rotary cylinder 5 is used to roll and shear the organic solid waste initially entering the preheating section 2 to reduce the particulate matter of the solid waste entering the pyrolysis section 1, improve the pyrolysis speed of the solid waste in the subsequent pyrolysis process. The processed small-particle solid waste is carried upward to the feeding port 701 during the rotation of the shearing discharge column 9 and falls into the pyrolysis section 1 through the feeding port 701 for subsequent pyrolysis reaction.

[0043] Please refer to Figures 3 - 8 , the pyrolysis section 1 is a conical structure with an inner diameter gradually decreasing towards the preheating section 2. The pyrolysis section 1 includes an outer cylinder 11 and an inner cylinder 12 sleeved inside and outside. A right partition 7 and a left partition 6 that are movably sleeved on the outer wall of the rotary cylinder 5 are respectively fixedly connected to the inside of the preheating section 2 adjacent to the pyrolysis section 1 and the end of the pyrolysis section 1 away from the preheating section 2. A pyrolysis cylinder 8 with a plurality of slag discharge holes at the bottom is fixedly connected between the left partition 6 and the right partition 7. The pyrolysis cylinder 8 is communicated with the feeding port 701.

[0044] A plurality of groups of shear plates 10 are distributed on the end wall of the rotary cylinder 5 located inside the pyrolysis cylinder 8. The shear plates 10 are horizontally arranged in multiple groups and are staggered front and back. Each group of shear plates 10 is annularly distributed on the rotary cylinder 5 and is inclined towards the left partition 6. When the organic solid waste enters the pyrolysis cylinder 8, under the rotation of the multiple groups of shear plates 10, the organic solid waste continuously tumbles up and down. During the upward tumbling process of the material, it is conveyed along the inclined surface of the shear plate 10 towards the end of the pyrolysis section 1, which not only realizes the large-area diffusion distribution of the material in the pyrolysis cylinder 8 and provides good heat uniformity, but also realizes the continuous conveyance of the material towards the outer end of the pyrolysis section 1 during the continuous up-and-down tumbling process.

[0045] A slag discharge ring cavity is reserved between the outer wall of the pyrolysis cylinder 8 and the inner wall of the pyrolysis section 1. A slag discharge port 601 communicating with the slag discharge ring cavity is formed in the bottom wall of the left partition plate 6. A slag discharge space is reserved between the left partition plate 6 and the outer end of the pyrolysis section 1. A slag discharge hopper 14 is arranged in the slag discharge space, with one end communicating with the slag discharge port 601 and the other end penetrating through to the bottoms of the outer cylinder 11 and the inner cylinder 12.

[0046] A plurality of oil discharge holes communicating with the slag discharge ring cavity are formed in the bottom wall of the pyrolysis section 1. The oil discharge holes are evenly distributed on the inner bottom wall of the inner cylinder 12. An oil discharge tank 13 communicating with the plurality of oil discharge holes is embedded and installed on the inner bottom wall of the outer cylinder 11.

[0047] An exhaust port is horizontally formed in the upper end wall of the pyrolysis cylinder 8. An exhaust duct 15 penetrating to the outside of the pyrolysis section 1 and used for conveying waste gas is embedded at the exhaust port. The generated waste gas is directly discharged upward in a short distance through the exhaust duct 15. The generated carbon slag and pyrolysis oil substances fall into the slag discharge ring cavity through the slag discharge holes during the large-scale material turning process of the shear plate 10, and are conveyed along the conical inclined surface of the inner cylinder 12 towards the slag discharge port 601. During the conveying process, the long-distance separation of pyrolysis oil and carbon slag is realized by using the oil discharge holes on the bottom wall of the pyrolysis section 1, so as to realize the timely separation of pyrolysis products during the pyrolysis process and improve the heat conduction performance in the furnace.

[0048] Embodiment 2: On the basis of Embodiment 1, the specific structure of the shear discharge column 9 is described in detail as follows:

[0049] Please refer to Figure 3 、 5 , the shear discharge column 9 is a spiral structure fixed on the outer end wall of the rotating cylinder 5 and with its outer diameter gradually increasing in the clockwise direction. A blanking gap corresponding to the position of the outer material port 501 and opening towards the feeding mechanism 3 is formed at the bottom end of the shear discharge column 9. The blanking gap is internally and externally connected with the outer material port 501, so as to realize that when the inner material port 401 and the outer material port 501 are connected, the organic solid waste conveyed into the heating cylinder 4 by the feeding mechanism 3 smoothly passes through the inner material port 401, the outer material port 501 and the blanking gap and falls into the preheating section 2. The interior of the heating cylinder 4 between the heating pipe 402 and the discharge port of the feeding mechanism 3 forms a storage cavity;

[0050] During the rotation of the shear discharge column 9 with the rotating cylinder 5, after the outer material port 501 and the blanking gap rotate to the other side of the inner material port 401 and are isolated from it, the organic solid waste continuously conveyed by the feeding mechanism 3 is stored in the storage cavity. After the shear discharge column 9 rotates one week, when the outer material port 501 is connected with the inner material port 401, at this time, the pre-stored organic solid waste falls into the interior of the preheating section 2 through the outer material port 501 and the blanking gap, expanding the feeding area of the organic solid waste and facilitating the shortening of the feeding time.

[0051] Please refer to Figure 5 、 8, 9. A shearing and discharging column 9 is fixedly installed on the longest outer diameter side with a material shoveling plate 904 that is movably attached to the inner wall of the preheating section 2. And at one end of the shearing and discharging column 9 near the material shoveling plate 904, there is an inclined cavity 903 that slopes downward towards the right partition 7 and is adapted to the feed inlet 701. Along the spiral direction of the outer end wall of the shearing and discharging column 9, there are multiple groups of shear sawteeth 901 and stirring rods 902 distributed at intervals. Each group of shear sawteeth 901 and stirring rods 902 has multiple and is horizontally distributed along the horizontal plane of the shearing and discharging column 9. And the size of the shear sawteeth 901 gradually decreases along the spiral direction of the shearing and discharging column 9 extending outward, and the length of the stirring rods 902 also gradually decreases along the spiral direction of the shearing and discharging column 9 extending outward;

[0052] Please refer to Figure 10 , 11 , Rotate the drive shearing and discharging column 9 counterclockwise, and its outer end wall gradually contacts the solid waste falling into the interior of the preheating section 2, and the organic solid waste is fully sheared and crushed by the contact roller pressing method of gradually increasing the extrusion pressure. Taking the outer spiral roller pressing surface of the shearing and discharging column 9 as the main rolling surface, and taking multiple groups of shear sawteeth 901 and stirring rods 902 distributed outside the shearing and discharging column 9 as the auxiliary shearing structure, to improve the crushing and stirring of the organic solid waste during the rolling process, promote the shearing effect, and reduce the particle size of the organic solid waste;

[0053] In this process, during one rotation of the shearing and discharging column 9, the blanking gap at the bottom of the shearing and discharging column 9 rotates the rotating cylinder 5 upward to block the inner material port 401. During this process, the heating cylinder 4 is filled with materials by the feeding mechanism 3. After one rotation of the shearing and discharging column 9, the small particle solid waste at the bottom is stirred upward by the material shoveling plate 904 and gathered into the inclined cavity 903. During the process that the inclined cavity 903 gradually approaches and communicates with the feed inlet 701, the small particle solid waste is introduced into the pyrolysis cylinder 8 through the inclined surface of the inclined cavity 903 and the feed inlet 701. And after the blanking gap and the outer material port 501 rotate to the lower part and communicate with the inner material port 401, the next round of feeding is carried out. In this way, continuous batch feeding, rolling and crushing, and preheating treatment of the organic solid waste are realized.

[0054] In summary: The traditional single straight-through furnace body structure is improved. The whole pyrolysis furnace is divided into a pyrolysis section 1 and a preheating section 2. The shearing and discharging column 9 in the preheating section 2 is used to continuously batch roll and crush and preheat the organic solid waste, reduce the particle size of the material, and improve the subsequent pyrolysis speed;

[0055] In the main pyrolysis stage, a double-cylinder furnace structure composed of a pyrolysis cylinder 8 and a pyrolysis section 1 is set. The shredded and sheared organic solid waste is introduced into the pyrolysis cylinder 8 through the feed inlet 701 as the shear discharge column 9 rotates upward. Under the rotation of multiple groups of shear plates 10, not only are small particle solid wastes in a multi-stage shearing state of continuously "tumbling upward - falling downward", but also the material is continuously conveyed along the inclined surface of the shear plate 10 towards the end of the pyrolysis section 1 during the upward tumbling process. During this pyrolysis process, the generated waste gas, carbon slag, and pyrolysis oil are separated in a timely and continuous manner through the exhaust duct 15, slag discharge port, and oil discharge hole respectively to improve the heat conduction performance in the furnace.

[0056] The above; is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto; any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes; should be covered by the protection scope of the present invention.

Claims

1. A horizontal pyrolysis furnace for solid organic waste with a multi-stage shearing structure, comprising a horizontally arranged pyrolysis section (1), a preheating section (2) and a feeding mechanism (3), characterized in that: A heating cylinder (4) is fixedly installed inside the preheating section (2), the heating cylinder (4) being connected to the feeding mechanism (3) and having the other end extending to the outer end of the pyrolysis section (1); a rotating cylinder (5) is rotatably installed on the heating cylinder (4); and the heating cylinder (4) and the rotating cylinder (5) are respectively provided with an inner material port (401) and an outer material port (501) which are connected to the inside and outside on the end wall of the preheating section (2); and a shear discharge column (9) which is connected to the outer material port (501) is fixedly sleeved on the rotating cylinder (5); The pyrolysis section (1) is a conical structure whose inner diameter gradually decreases toward one end of the preheating section (2); the left and right ends of the rotating cylinder (5) are respectively movably sleeved with a right baffle (7) and a left baffle (6) fixed to the ends of the pyrolysis section (1) and the preheating section (2); a feed port (701) adapted to the shear discharge column (9) is provided at the top of the right baffle (7); a pyrolysis cylinder (8) having a plurality of slag discharge holes at the bottom and connected to the feed port (701) is fixed between the left baffle (6) and the right baffle (7); and a plurality of groups of shear plates (10) are distributed on the end wall of the rotating cylinder (5) located inside the pyrolysis cylinder (8); An exhaust port is transversely provided on the upper end wall of the pyrolysis cylinder (8), a slag discharge ring cavity is reserved between the outer wall of the pyrolysis cylinder (8) and the inner wall of the pyrolysis section (1), and a plurality of oil discharge holes connected to the slag discharge ring cavity are provided on the bottom end wall of the pyrolysis section (1).

2. The solid organic waste horizontal pyrolysis furnace with a multi-stage shearing structure according to claim 1 is characterized in that: The feeding mechanism (3) comprises a feeding cylinder (31) fixedly mounted at the end of the preheating section (2), wherein a spiral feeding piece (32) is rotatably mounted inside the feeding cylinder (31) and extends through the interior of the heating cylinder (4) and corresponds to the position of the internal material opening (401).

3. The solid organic waste horizontal pyrolysis furnace with a multi-stage shearing structure according to claim 2 is characterized in that: A spacer is fixed inside the heating cylinder (4) and is arranged near the inner material opening (401). A plurality of heating tubes (402) are embedded and installed inside the heating cylinder (4) on a side away from the inner material opening (401). The heating tubes (402) are separated from the inner material opening (401) by the spacer.

4. The solid organic waste horizontal pyrolysis furnace with a multi-stage shearing structure according to claim 1, characterized in that: The shearing discharge column (9) is a spiral structure fixed to the outer end wall of the rotating cylinder (5) and having an outer diameter that gradually increases in a clockwise direction. The bottom end of the shearing discharge column (9) is provided with a material discharge gap that corresponds to the position of the external material opening (501) and is close to the side opening of the feeding mechanism (3).

5. The solid organic waste horizontal pyrolysis furnace with a multi-stage shearing structure according to claim 4 is characterized in that: The shearing and discharging column (9) is fixedly provided with a scraping plate (904) movably fitted with the inner wall of the preheating section (2) on the side with the longest outer diameter, and an inclined cavity (903) is provided at one end of the shearing and discharging column (9) adjacent to the scraping plate (904) and is inclined downward toward the right partition plate (7) and adapted to the feed port (701).

6. The solid organic waste horizontal pyrolysis furnace with a multi-stage shearing structure according to claim 5, characterized in that: The outer end wall of the shearing and discharging column (9) is provided with a plurality of groups of shearing saw teeth (901) and stirring rods (902) which are spaced apart along the spiral direction thereof; each group of shearing saw teeth (901) and stirring rods (902) is provided with a plurality of shearing saw teeth (901) and stirring rods (902) which are horizontally distributed along the horizontal plane of the shearing and discharging column (9); and the size and length of the shearing saw teeth (901) and stirring rods (902) gradually decrease along the spiral direction extending outward from the shearing and discharging column (9).

7. The solid organic waste horizontal pyrolysis furnace with a multi-stage shearing structure according to claim 1, characterized in that: The shear plates (10) are arranged in multiple groups horizontally and staggered front to back, and each group of shear plates (10) is distributed in an annular manner on the rotating cylinder (5) and is inclined toward the left partition plate (6).

8. The solid organic waste horizontal pyrolysis furnace with a multi-stage shearing structure according to claim 1, characterized in that: The pyrolysis section (1) comprises an outer cylinder (11) and an inner cylinder (12) which are arranged in an inner and outer manner, the oil drain holes are evenly distributed on the inner bottom wall of the inner cylinder (12), and an oil drain box (13) connected to the plurality of oil drain holes is embedded in the inner bottom wall of the outer cylinder (11).

9. The solid organic waste horizontal pyrolysis furnace with a multi-stage shearing structure according to claim 8, characterized in that: A slag discharge port (601) connected to the slag discharge annular cavity is formed on the bottom end wall of the left partition (6), a slag discharge space is reserved between the left partition (6) and the outer end of the pyrolysis section (1), and a slag discharge bucket (14) is provided in the slag discharge space, one end of the slag discharge port (601) being connected to the slag discharge port (601) and the other end of the slag discharge bucket extending through the bottom of the outer cylinder (11) and the inner cylinder (12).

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