A fixed pyrolysis furnace for pyrolyzing solid waste hazardous waste

Abstract

The application provides a fixed pyrolysis furnace for pyrolyzing solid waste and hazardous waste, which comprises a pyrolysis furnace body and an inner furnace arranged in the pyrolysis furnace body; an opening is arranged at the bottom of the pyrolysis furnace body, and a feeding port in communication with the inner furnace is arranged at the front of the pyrolysis furnace body; the bottom of the inner furnace is provided with a movable disc; lifting assemblies for driving the movable disc to move along the vertical opening direction are arranged at the positions of the two sides of the pyrolysis furnace body; the two groups of lifting assemblies are synchronously controlled through a transmission connection synchronous assembly; a limiting assembly for controlling the height of the movable disc is arranged on the outer wall of the pyrolysis furnace body, and the limiting assembly is movably connected with the synchronous assembly. The stable lifting and accurate resetting of the movable disc are realized through the arrangement of the lifting assembly and the synchronous assembly, the dependence on the resetting spring is completely eliminated, the adverse effects of high temperature, corrosion and abrasion and other factors on the operation of the equipment are effectively avoided, and the reliability and service life of the transmission system are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of pyrolysis furnace technology, specifically a stationary pyrolysis furnace for pyrolyzing solid and hazardous waste. Background Technology

[0002] Closed-loop high-temperature pyrolysis, as one of the mainstream technologies for solid and hazardous waste treatment, not only achieves the complete decomposition of pollutants but also converts solid and hazardous waste into zero-carbon fuels such as pyrolysis gas and pyrolysis char, providing clean and renewable energy for industrial production. The stationary pyrolysis furnace for solid and hazardous waste, as the core equipment of this process, directly determines the continuous operating efficiency and safety of the equipment through the overall structural stability of its furnace body and the convenience and reliability of its bottom slag discharge system. Furthermore, it affects the resource utilization efficiency of converting solid and hazardous waste into zero-carbon fuels. Therefore, extremely high requirements are placed on the design and optimization of its slag discharge and locking structure.

[0003] Currently, many existing stationary pyrolysis furnaces for solid and hazardous waste draw upon the slag discharge and locking structure of the "High-Temperature Pyrolysis Gasification Furnace for Hazardous Waste" disclosed in Chinese Utility Model Patent No. CN221464344U. This structure cleans the slag inside the furnace by lowering the upper movable plate, and then fixes the upper movable plate with a locking component, effectively improving the convenience of slag cleaning. Therefore, it is widely used in the structural design of stationary pyrolysis furnaces. However, when this structure is applied to stationary pyrolysis furnaces for solid and hazardous waste, significant defects have been exposed during long-term operation: the lower movable plate relies on a spring for automatic reset. However, stationary pyrolysis furnaces require continuous high-temperature operation. The high-temperature environment at the furnace bottom and the corrosion and wear of the slag cause the elasticity of the spring to decay rapidly, resulting in the lower movable plate not resetting properly. This makes it impossible for the insertion hole of the upper movable plate and the screw of the locking component to be horizontally aligned, making it difficult for the locking component to be accurately inserted into the insertion hole for effective locking. This seriously reduces the stability and safety of the stationary pyrolysis furnace operation. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] To achieve the above objectives, the present invention proposes a stationary pyrolysis furnace for pyrolyzing solid and hazardous waste, comprising a pyrolysis furnace body and an inner furnace disposed inside the pyrolysis furnace body.

[0006] The bottom of the pyrolysis furnace body is provided with an opening, and the front of the pyrolysis furnace body is provided with a feed port that communicates with the inner furnace. The bottom of the inner furnace is equipped with a movable plate; The pyrolysis furnace body is equipped with lifting components on both sides of the inner furnace to drive the movable plate to move along the vertical opening direction; the two sets of lifting components are connected by a transmission and synchronization component to achieve synchronous control. The outer wall of the pyrolysis furnace body is provided with a limiting component for controlling the height of the movable plate, and the limiting component is movably connected to the synchronization component.

[0007] This invention achieves smooth lifting and precise resetting of the movable plate by incorporating lifting and synchronization components, completely eliminating reliance on a return spring. This effectively avoids the adverse effects of high temperature, corrosion, and wear on equipment operation, significantly improving the reliability and service life of the transmission system. Simultaneously, the inclusion of a limit switch component enables automatic one-way locking of the movable plate position, making unlocking and resetting operations convenient and efficient. This not only simplifies the operator's workflow but also greatly reduces safety risks caused by human error, thereby effectively improving the overall operational stability, safety, and practicality of the pyrolysis furnace, making it better suited to meet the actual needs of high-temperature pyrolysis treatment of solid and hazardous waste.

[0008] Optionally, each set of the lifting components includes a toothed plate vertically connected to the edge of the movable plate, the toothed plate being slidably connected to the outer wall of the inner furnace; The toothed plate is fitted with a gear, and a connecting rod passes through the center of the gear. The connecting rod is rotatably connected to the pyrolysis furnace body. Both connecting rods, at the ends opposite to the feed inlet, pass through the pyrolysis furnace body and are connected to the synchronization assembly for transmission. One of the connecting rods, at the end facing the feed inlet, passes through the pyrolysis furnace body and is movably connected to the limiting component.

[0009] Furthermore, a hand crank is fixedly connected to the end of the connecting rod facing the feed inlet and penetrating the pyrolysis furnace body.

[0010] Furthermore, the limiting component includes a ratchet fixed to the outer wall of the connecting rod, the ratchet being disposed between the hand crank and the outer wall of the pyrolysis furnace, and the outer wall of the pyrolysis furnace body being rotatably provided with a pawl that meshes with the ratchet; The pawl engages with the ratchet wheel for positioning, and an operating handle is provided on the surface of the pawl facing away from the pyrolysis furnace body.

[0011] Furthermore, a fixing plate is fixedly provided on the outer wall of the pyrolysis furnace body, and guide holes are provided on the fixing plate; The pawl is fixedly provided with a movable rod that passes through the guide hole on the side facing the fixed plate, and a spring is sleeved on the outer wall of the movable rod; The two ends of the spring abut against the fixing plate and the pawl, respectively.

[0012] Furthermore, the top of the movable disc is provided with an arc-shaped disc.

[0013] Furthermore, two guide rods are fixed to the outer wall of the inner furnace; guide grooves that slide and connect with the guide rods are provided on the side walls of the two toothed plates facing the inner furnace.

[0014] Furthermore, the synchronization component includes an installation rod disposed on the side of the pyrolysis furnace body away from the feed inlet. The installation rod is coplanar with and perpendicular to the two connecting rods. A plurality of fixing brackets rotatably connected to the installation rod are disposed on the side wall of the pyrolysis furnace body. The mounting rod is provided with a first bevel gear at both ends, and the ends of the two connecting rods opposite to the feed inlet are provided with a second bevel gear that meshes with the first bevel gear.

[0015] Furthermore, multiple support legs are centrally symmetrically arranged on the outer wall of the pyrolysis furnace body.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of a stationary pyrolysis furnace for pyrolysis of solid and hazardous waste according to the present invention. Figure 2 This is a schematic diagram of the internal structure of a stationary pyrolysis furnace for pyrolysis of solid and hazardous waste according to the present invention. Figure 3 yes Figure 2 A schematic diagram of the side view structure; Figure 4 This is a schematic diagram of a stationary pyrolysis furnace for pyrolysis of solid and hazardous waste according to the present invention from another perspective. Figure 5 yes Figure 1 A magnified schematic diagram of part A in the middle section; Figure 6 yes Figure 2 A partially enlarged structural diagram of section B; Figure 7 yes Figure 4 A magnified schematic diagram of part C in the middle.

[0018] Explanation of reference numerals in the attached figures: 1. Pyrolysis furnace body; 111. Support leg; 2. Inner furnace; 3. Feed inlet; 4. Opening; 5. Movable disc; 6. Arc-shaped disc; 7. Toothed plate; 8. Connecting rod; 9. Gear; 10. Hand crank; 11. Ratchet; 12. Pad; 13. Operating handle; 14. Fixing plate; 15. Guide hole; 16. Moving rod; 17. Spring; 18. Guide rod; 19. Guide groove; 20. Fixing frame; 21. Mounting rod; 22. First bevel gear; 23. Second bevel gear. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] This invention proposes a stationary pyrolysis furnace for pyrolyzing solid and hazardous waste, as described below. Figures 1 to 7 Please provide a detailed explanation.

[0021] A stationary pyrolysis furnace for pyrolyzing solid and hazardous waste includes a pyrolysis furnace body 1 and an inner furnace 2 disposed inside the pyrolysis furnace body 1. An opening 4 is provided at the bottom of the pyrolysis furnace body 1, and a feed inlet 3 communicating with the inner furnace 2 is provided at the front of the pyrolysis furnace body 1. The bottom of the inner furnace 2 is equipped with a movable plate 5; The pyrolysis furnace body 1 is provided with lifting components on both sides of the inner furnace 2 for driving the movable plate 5 to move along the vertical opening 4; the two sets of lifting components are symmetrically arranged, and the two sets of lifting components are synchronously controlled by a transmission connection synchronization component. A limiting component for controlling the height of the movable plate 5 is provided on the outer wall of the pyrolysis furnace body 1. The limiting component is movably connected to the synchronization component.

[0022] Specifically, this invention uses two symmetrically distributed lifting components to drive the movable plate 5 to move along the vertical opening 4, achieving smooth driving of the movable plate 5 during its lifting process. The two lifting components act on both sides of the movable plate 5 respectively, ensuring uniform force distribution during lifting and effectively preventing tilting or jamming caused by unilateral force. Furthermore, by using a synchronization component to connect the two lifting components, the lifting speed and stroke on both sides of the movable plate 5 are completely consistent, fundamentally eliminating the possibility of asynchronous lifting on both sides. This ensures precise and uniform sealing between the movable plate 5 and the bottom of the inner furnace 2 when closed, allowing for smooth and unobstructed descent during slag discharge. The limiting component is movably connected to the synchronization component, reliably locking the movable plate 5 after it is adjusted to the required height, preventing accidental displacement of the movable plate 5 due to vibration or gravity. Most importantly, this structure achieves the lifting and locking of the movable plate 5 through mechanical transmission, completely eliminating the reliance on the return spring 17 and avoiding the adverse effects of high temperature, corrosion and wear on the performance of the elastic element. This significantly improves the reliability and service life of the transmission system, thereby effectively enhancing the overall operational stability, safety and practicality of the pyrolysis furnace.

[0023] In some embodiments, each lifting assembly includes a toothed plate 7 vertically connected to the edge of the movable plate 5, and the toothed plate 7 is slidably connected to the outer wall of the inner furnace 2. A gear 9 meshes on the toothed plate 7, and a connecting rod 8 passes through the center of the gear 9. The connecting rod 8 is rotatably connected to the pyrolysis furnace body 1. Both connecting rods 8 have one end opposite to the feed inlet 3, which passes through the pyrolysis furnace body 1 and is connected to the synchronous component for transmission. One of the connecting rods 8, with its end facing the feed inlet 3, passes through the pyrolysis furnace body 1 and is movably connected to the limiting component.

[0024] It should be noted that the mechanical transmission method of gear 9 meshing with toothed plate 7 features precise transmission ratio and controllable lifting position. The operator can precisely control the lifting height of toothed plate 7 and movable disc 5 by rotating connecting rod 8, meeting the sealing and slag discharge requirements under different working conditions. The gear 9 itself has strong high temperature resistance and wear resistance, and can work stably for a long time in harsh environments with continuous high temperature and slag corrosion, completely eliminating the dependence on return spring 17 and ensuring that movable disc 5 can accurately and reliably return to the preset position.

[0025] The toothed plate 7 is vertically connected to the edge of the movable plate 5 and slides along the outer wall of the inner furnace 2, providing stable guidance and support for the lifting and lowering of the movable plate 5 and reducing lateral swaying of the movable plate 5 during the lifting and lowering process. Fourth, the connecting rod 8 passes through the pyrolysis furnace body 1 and is connected to the synchronization component and the limiting component for transmission or movement, realizing an integrated design of power input, synchronous transmission and position locking. The structure is compact, the transmission path is clear, and it is easy to operate and maintain.

[0026] In some embodiments, a hand crank 10 is fixedly connected to the end of the connecting rod 8 facing the feed inlet 3 and penetrating the pyrolysis furnace body 1. The hand crank 10 provides the operator with an intuitive, labor-saving, and precise manual operation interface. The operator can drive the lifting assembly and control the lifting stroke of the movable plate 5 by rotating the hand crank 10, without the need for a complex electrical control system or professional tools. The hand crank 10 allows the operator to precisely control the lifting height of the movable plate 5 according to the actual slag discharge situation and the sealing requirements of the bottom of the inner furnace 2, making the operation flexible and convenient, further enhancing the practicality and operability of the equipment.

[0027] In some embodiments, the limiting component includes a ratchet 11 fixed to the outer wall of the connecting rod 8, the ratchet 11 being disposed between the hand crank 10 and the outer wall of the pyrolysis furnace, and the outer wall of the pyrolysis furnace body 1 being rotatably provided with a pawl 12 that meshes with the ratchet 11. The pawl 12 engages with the ratchet 11 for positioning, and the surface of the pawl 12 facing away from the pyrolysis furnace body 1 is provided with an operating handle 13.

[0028] It should be noted that the ratchet 11 and pawl 12 enable automatic one-way locking of the movable disc 5 after it has risen to its designated position, and the locking effect is stable and reliable. When the operator rotates the hand crank 10 clockwise to raise the movable disc 5 to the closed position, the ratchet 11 rotates clockwise synchronously with the connecting rod 8, while the pawl 12 remains engaged with the ratchet 11 under the action of gravity or the spring 17, effectively preventing the ratchet 11 from rotating counterclockwise, thus locking the position of the connecting rod 8 and fixing the height of the movable disc 5. When slag discharge is required, the operator can operate the operating handle 13 to disengage the pawl 12 from the ratchet 11, allowing the connecting rod 8 to rotate freely counterclockwise, driving the movable disc 5 to descend. This limiting method has a simple and reliable structure, requiring no additional locking operation, greatly simplifying the operation process; at the same time, its locking effect is stable and not easily affected by high-temperature environments, ensuring the structural stability of the pyrolysis furnace during operation.

[0029] In some embodiments, a fixing plate 14 is fixedly provided on the outer wall of the pyrolysis furnace body 1, and a guide hole 15 is provided on the fixing plate 14; A movable rod 16 with a through guide hole 15 is fixedly installed on the side of the pawl 12 facing the fixed plate 14, and a spring 17 is sleeved on the outer wall of the movable rod 16; The two ends of the spring 17 abut against the fixed plate 14 and the pawl 12, respectively.

[0030] Understandably, firstly, the elastic force of spring 17 continuously applies a pushing force towards ratchet 11 to pawl 12, ensuring that pawl 12 remains tightly engaged with the teeth of ratchet 11. This effectively prevents pawl 12 from disengaging from ratchet 11 due to equipment vibration or slight shaking, further improving the reliability of the limit assembly locking. Secondly, when the operator moves operating handle 13 to disengage pawl 12 from ratchet 11, moving rod 16 slides along guide hole 15, compressing spring 17 and storing elastic potential energy. After releasing operating handle 13, spring 17 releases its elastic potential energy, automatically restoring pawl 12 to its engaged state with ratchet 11 without manual reset, making operation more convenient and effortless. Furthermore, the setting of fixed plate 14 and guide hole 15 provides stable guidance for the sliding of moving rod 16, ensuring that pawl 12 does not deviate during movement, guaranteeing the accuracy of the engagement position between pawl 12 and ratchet 11, and extending the service life of the limit assembly.

[0031] In some embodiments, the top of the movable disk 5 is provided with an arc-shaped disk 6. The curvature of the arc-shaped disk 6 is adapted to the curvature of the inner wall of the bottom of the inner furnace 2. When the movable disk 5 rises to the closed position, the arc-shaped disk 6 can fit tightly against the inner wall of the bottom of the inner furnace 2, forming a smooth arc-shaped bottom surface. This structural design effectively avoids the accumulation and residue of solid waste and hazardous waste at the connection between the bottom of the inner furnace 2 and the movable disk 5 during pyrolysis, ensuring that the slag can slide smoothly during slag discharge, reducing cleaning dead corners and improving the thoroughness of slag discharge. At the same time, the smooth arc-shaped surface also reduces the wear of the slag on the movable disk 5, extending the service life of the equipment.

[0032] In some embodiments, two guide rods 18 are fixed to the outer wall of the inner furnace 2; guide grooves 19, which are slidably connected to the guide rods 18, are provided on the sidewalls of the two toothed plates 7 facing the inner furnace 2. By setting the guide rods 18 and guide grooves 19, precise guidance and limiting are provided for the lifting and lowering movement of the toothed plates 7. When the toothed plates 7 drive the movable disc 5 to lift and lower under the drive of the gear 9, the guide grooves 19 slide along the outer wall of the guide rods 18, effectively preventing the toothed plates 7 from shifting left and right or wobbling due to uneven force during lifting and lowering, and ensuring that the toothed plates 7 always maintain a stable meshing state with the gear 9. This design ensures the smoothness and accuracy of the lifting and lowering movement of the movable disc 5, avoids the problem of poor sealing or lifting and lowering jamming of the movable disc 5 due to the offset of the toothed plates 7, and further improves the operational reliability of the equipment.

[0033] In some embodiments, the synchronization component includes an installation rod 21 disposed on the side of the pyrolysis furnace body 1 away from the feed inlet 3. The installation rod 21 is coplanar with and perpendicular to the two connecting rods 8. A plurality of fixing brackets 20 rotatably connected to the installation rod 21 are disposed on the side wall of the pyrolysis furnace body 1. The mounting rod 21 is provided with first bevel gears 229 at both ends, and the ends of the two connecting rods 8 opposite to the feed inlet 3 are provided with second bevel gears 239 that mesh with the first bevel gears 229.

[0034] It should be noted that by using a pair of bevel gears 9 as a synchronous transmission component, precise synchronous rotation of the two connecting rods 8 can be achieved. When the operator drives one of the connecting rods 8 to rotate via the hand crank 10, the second bevel gear 239 at the end of that connecting rod 8 rotates accordingly. This, in turn, drives the mounting rod 21 to rotate on the fixed frame 20 via the first bevel gear 229 meshing with it. The first bevel gear 229 at the other end of the mounting rod 21 then drives the second bevel gear 239 at the end of the other connecting rod 8 to rotate synchronously, thus achieving synchronous rotation of the two connecting rods 8. This configuration allows the operator to drive both gears 9 to rotate synchronously by rotating only one hand crank 10, thereby driving the toothed plates 7 and the movable disc 5 on both sides to move up and down. This ensures that the lifting speed and height of both sides of the movable disc 5 are completely consistent, effectively avoiding problems such as tilting, jamming, or poor sealing of the movable disc 5 due to asynchronous lifting on both sides. The mounting rod 21 is coplanar and perpendicular to the two connecting rods 8, optimizing the transmission path and reducing space occupation. The fixed frame 20 provides stable support and a rotation fulcrum for the mounting rod 21, ensuring smooth transmission.

[0035] In some embodiments, to provide a stable and balanced support structure for the pyrolysis furnace body 1, multiple support legs are centrally symmetrically arranged on the outer wall of the pyrolysis furnace body 1. This centrally symmetrical layout ensures that the weight of the equipment is evenly distributed across the support legs, effectively preventing tipping or swaying due to a shift in the center of gravity during operation, thus improving the safety and stability of the equipment. Simultaneously, the support legs raise the pyrolysis furnace body 1, creating sufficient space between its bottom opening 4 and the ground, facilitating slag discharge and the collection and transfer of ash, thereby enhancing the practicality and ease of operation of the equipment.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A stationary pyrolysis furnace for pyrolyzing solid and hazardous waste, comprising a pyrolysis furnace body and an inner furnace disposed inside the pyrolysis furnace body; characterized in that, The bottom of the pyrolysis furnace body is provided with an opening, and the front of the pyrolysis furnace body is provided with a feed inlet that communicates with the inner furnace. The bottom of the inner furnace is equipped with a movable plate; The pyrolysis furnace body is equipped with lifting components on both sides of the inner furnace to drive the movable plate to move along the vertical opening direction; the two sets of lifting components are connected by a transmission and synchronization component to achieve synchronous control. The outer wall of the pyrolysis furnace body is provided with a limiting component for controlling the height of the movable plate, and the limiting component is movably connected to the synchronization component.

2. A stationary pyrolysis furnace for pyrolyzing solid and hazardous waste according to claim 1, characterized in that, Each of the lifting components includes a toothed plate vertically connected to the edge of the movable plate, and the toothed plate is slidably connected to the outer wall of the inner furnace; The toothed plate is fitted with a gear, and a connecting rod passes through the center of the gear. The connecting rod is rotatably connected to the pyrolysis furnace body. Both connecting rods, at the ends opposite to the feed inlet, pass through the pyrolysis furnace body and are connected to the synchronous assembly for transmission. One of the connecting rods, at the end facing the feed inlet, passes through the pyrolysis furnace body and is movably connected to the limiting component.

3. A stationary pyrolysis furnace for pyrolyzing solid and hazardous waste according to claim 2, characterized in that, A hand crank is fixedly connected to the end of the connecting rod facing the feed inlet and penetrating the pyrolysis furnace body.

4. A stationary pyrolysis furnace for pyrolyzing solid and hazardous waste according to claim 3, characterized in that, The limiting component includes a ratchet fixed to the outer wall of the connecting rod, the ratchet being disposed between the hand crank and the outer wall of the pyrolysis furnace, and a pawl rotatably disposed on the outer wall of the pyrolysis furnace body to engage with the ratchet. The pawl engages with the ratchet wheel for positioning, and an operating handle is provided on the surface of the pawl facing away from the pyrolysis furnace body.

5. A stationary pyrolysis furnace for pyrolyzing solid and hazardous waste according to claim 4, characterized in that, A fixing plate is fixedly provided on the outer wall of the pyrolysis furnace body, and guide holes are provided on the fixing plate; The pawl is fixedly provided with a movable rod that passes through the guide hole on the side facing the fixed plate, and a spring is sleeved on the outer wall of the movable rod; The two ends of the spring abut against the fixing plate and the pawl, respectively.

6. A stationary pyrolysis furnace for pyrolyzing solid and hazardous waste according to claim 1, characterized in that, The top of the movable plate is equipped with an arc-shaped plate.

7. A stationary pyrolysis furnace for pyrolyzing solid and hazardous waste according to claim 2, characterized in that, Two guide rods are fixed to the outer wall of the inner furnace; guide grooves that slide and connect with the guide rods are provided on the side wall of the two toothed plates facing the inner furnace.

8. A stationary pyrolysis furnace for pyrolyzing solid and hazardous waste according to claim 2, characterized in that, The synchronization component includes an installation rod disposed on the side of the pyrolysis furnace body away from the feed inlet. The installation rod is coplanar with and perpendicular to the two connecting rods. Multiple fixing brackets that are rotatably connected to the installation rod are disposed on the side wall of the pyrolysis furnace body. The mounting rod is provided with a first bevel gear at both ends, and the ends of the two connecting rods opposite to the feed inlet are provided with a second bevel gear that meshes with the first bevel gear.

9. A stationary pyrolysis furnace for pyrolyzing solid and hazardous waste as described in claim 1, characterized in that, The outer wall of the pyrolysis furnace body is provided with multiple support legs arranged in a centrally symmetrical manner.

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