A continuous solid waste pyrolysis gasification equipment

Abstract

The application relates to the technical field of solid waste pyrolysis gasification, in particular to a continuous solid waste pyrolysis gasification equipment, which comprises a heat treatment cylinder, a gas discharge valve is arranged on the side wall of the heat treatment cylinder, a quantitative feeding mechanism matched with the heat treatment cylinder and used for quantitatively feeding solid waste into the heat treatment cylinder is arranged at the top of the heat treatment cylinder, and a treatment mechanism is further arranged in the heat treatment cylinder; in the treatment mechanism, after the solid waste enters the heat treatment cylinder, the solid waste will undergo a high-temperature pyrolysis process. The pyrolyzed solid waste is screened through a screening frame. Due to the screening treatment of the screening frame, solid wastes with different particle sizes will fall on different screening frames. Different temperature heating areas can heat and treat the solid wastes on the screening frames respectively, so that the pyrolysis environment with corresponding temperature can be matched according to the size difference of the solid waste particles, and the incomplete pyrolysis or excessive pyrolysis of the solid waste due to the improper pyrolysis temperature can be effectively avoided.

Description

Technical Field

[0001] This application relates to the technical field of solid waste pyrolysis gasification, and in particular to a continuous solid waste pyrolysis gasification device. Background Technology

[0002] Pyrolysis gasification technology, as a cleaner and more resource-efficient solid waste treatment method than traditional incineration, has received widespread attention in recent years. Its core objective is to convert organic solid waste into combustible gas, tar, and carbon residue under anaerobic or oxygen-limited conditions, while simultaneously stabilizing heavy metals and suppressing dioxins at their source. Among these technologies, continuous operation mode has become the mainstream development direction due to its high treatment efficiency and suitability for large-scale application.

[0003] For example, a solid waste continuous pyrolysis gasification device with announcement number CN220669455U belongs to the field of gasification furnace technology. When solid waste enters the main body of the gasification furnace, it can be limited by the cooperation of the connecting component and the limiting component. When the motor runs, it drives the limiting component to move left and right. When the limiting component moves to one side, it forms a gap with one end of the connecting component, so that the solid waste above falls in segments, effectively avoiding the problem of incomplete combustion caused by accumulation.

[0004] Existing technologies have shortcomings when feeding solid waste into the connecting components of solid waste pyrolysis gasification devices: when processing flexible materials such as cloth and plastics, the limiting components need to be opened, and gaps will form between the connecting components and the limiting components, and some solid waste may fall directly through the gaps; in addition, these flexible materials are very easy to be caught or stuck on the limiting components, and cannot fall smoothly, thus seriously hindering the continuous feeding process of solid waste.

[0005] Furthermore, due to the differences in the types and properties of materials contained in solid waste, their ignition and boiling points, as well as the time required to reach those points, vary. However, the pyrolysis gasification process used in existing technologies employs a fixed processing time and a uniform gasification path. Therefore, in actual operation, some materials may not be completely gasified due to insufficient processing time, while others may undergo over-pyrolysis due to excessive processing time, resulting in poor continuity and affecting the final effect of the entire solid waste treatment process.

[0006] Based on this, and given the above viewpoints, there is still room for improvement in existing technologies for solid waste pyrolysis and gasification. Summary of the Invention

[0007] To solve the above-mentioned technical problems, this application provides a continuous solid waste pyrolysis gasification device, adopting the following technical solution: A continuous solid waste pyrolysis gasification device includes a heat treatment cylinder, a venting valve is provided on the side wall of the heat treatment cylinder, a quantitative feeding mechanism is provided at the top of the heat treatment cylinder to quantitatively convey solid waste into it, and a processing mechanism is also provided inside the heat treatment cylinder, wherein the processing mechanism includes:

[0008] The rotating shaft is located inside the heat treatment cylinder and is coaxial with the heat treatment cylinder.

[0009] Multiple screening frames are evenly arranged along the length of the rotating shaft, and the screening frames are slidably sleeved on the rotating shaft.

[0010] The agitation components are mounted on the rotating shaft and correspond one-to-one with the screening frame.

[0011] The heat treatment cylinder has multiple heating zones with different temperatures that correspond one-to-one with the screening frame. The heating zones are resistance wires arranged in sections along the axial direction on the inner wall of the heat treatment cylinder, and the resistance wires in different heating zones have different power.

[0012] Preferably, the quantitative feeding mechanism includes:

[0013] An annular conveyor frame is installed at the top of the heat treatment cylinder, and a through groove that matches the heat treatment cylinder is provided on the annular conveyor frame.

[0014] The conveyor cylinder is a through structure along the height direction of the heat treatment cylinder and is equidistantly arranged on the annular conveyor frame.

[0015] A weighing scale is installed on a circular conveyor frame and is used to weigh the solid waste inside the conveyor cylinder.

[0016] A conveying assembly, mounted on a ring conveyor frame, is used to drive the conveyor cylinder to move.

[0017] Preferably, the conveying component includes:

[0018] Multiple fixing rings are provided, each corresponding to a conveyor cylinder, and are installed on the conveyor cylinder;

[0019] Guide blocks are installed at both ends of the inner side of the annular conveyor frame;

[0020] The conveyor belt is fitted between the two guide blocks, and the retaining ring is installed on the conveyor belt.

[0021] Preferably, the screening frame includes two concentric ring frames with different diameters. The ring frame with a larger diameter is slidably mounted on the inner wall of the heat treatment cylinder, while the ring frame with a smaller diameter is slidably mounted on the rotating shaft. Multiple circumferentially evenly distributed connecting frames are provided between the concentric ring frames, and the two ends of the connecting frames are respectively mounted on the concentric ring frames. Screening mesh is provided on the concentric ring frames together.

[0022] Preferably, a ring block is installed at the bottom of the corresponding screening frame, and multiple arc-shaped protrusions are evenly arranged on the ring block along its circumference. A linkage plate is arranged between the arc-shaped protrusions, and the linkage plate is installed at the bottom of the ring frame with the smaller diameter.

[0023] Preferably, the agitation assembly includes an annular plate that is slidably positioned along the length of the rotation axis on the circumferential surface of the rotation axis and located above the corresponding screening frame. A horizontal connecting rod is mounted on the annular plate, and multiple stirring rods are evenly arranged at the bottom of the horizontal connecting rod along its length.

[0024] Preferably, a support frame is installed on the top of the annular frame with a smaller diameter, and an annular groove is provided at the bottom of the corresponding annular plate, with the support frame slidably disposed inside the corresponding annular groove.

[0025] Preferably, a rotating rod is provided at the bottom of the circumferential surface of the stirring rod, and the rotating rods on adjacent stirring rods are staggered along the height direction of the stirring rod. The stirring rod is also equipped with meshing gears, and an annular rack plate that meshes with the corresponding gear is installed on the support frame through a fixed connecting rod.

[0026] Preferably, the annular block has a connecting protrusion on its side, and a jet pipe is rotatably mounted on the connecting protrusion via a bearing.

[0027] Preferably, the horizontal connecting rod is symmetrically provided with guide plates along its width direction, and a guide disc that cooperates with the corresponding annular rack plate is installed on the rotating shaft.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. In the processing mechanism designed in this invention, solid waste undergoes a high-temperature pyrolysis process after entering the heat treatment cylinder. The pyrolyzed solid waste is then screened by a screening rack. Due to the screening process, solid waste of different particle sizes will fall onto different screening racks. Different heating zones at different temperatures can perform separate heating treatment on the solid waste on each screening rack. This allows for matching the appropriate pyrolysis environment based on the differences in solid waste particle size, effectively avoiding incomplete or excessive pyrolysis due to unsuitable pyrolysis temperatures.

[0030] 2. In the quantitative feeding mechanism designed in this invention, a weighing scale can be used to accurately weigh the solid waste inside the conveying cylinder, and the conveying cylinder installed on the annular conveying frame can quantitatively transport the solid waste into the heat treatment cylinder during movement. Furthermore, there is no obstruction when pouring solid waste into the heat treatment cylinder, and the amount poured in can be quantitatively controlled. This precise feeding mechanism can effectively ensure the stable and orderly progress of solid waste in the subsequent pyrolysis and gasification process.

[0031] 3. The stirring rod designed in this invention can agitate the solid waste after pyrolysis, so that the solid waste is fully crushed after pyrolysis, which facilitates the subsequent screening of the solid waste by the screening rack. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0033] Figure 2 This is a schematic diagram of the three-dimensional installation structure between the annular conveyor frame and the conveyor cylinder of the present invention.

[0034] Figure 3 This is a schematic diagram of the three-dimensional installation structure between the fixing ring, guide block, and conveyor belt of the present invention.

[0035] Figure 4 This is a three-dimensional structural diagram of the annular conveyor frame of the present invention.

[0036] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the heat treatment cylinder of the present invention.

[0037] Figure 6 This is a schematic diagram of the three-dimensional installation structure between the ring frame, connecting frame, and rotating shaft of the present invention.

[0038] Figure 7 This is a top view of the screening frame of the present invention.

[0039] Figure 8 This is a schematic diagram of the three-dimensional installation structure between the rotating shaft, annular plate, horizontal connecting rod, and annular block of the present invention.

[0040] Figure 9 This is a three-dimensional installation structure diagram of the support frame, stirring rod, and rotating rod of the present invention.

[0041] Figure 10 This is a schematic diagram of the three-dimensional installation structure between the horizontal connecting rod, stirring rod, rotating rod, and gears of the present invention.

[0042] Figure 11 This is a bottom view of the installation structure between the small-diameter ring frame and the support frame of the present invention.

[0043] Figure 12 This is a schematic diagram of the three-dimensional installation structure between the annular block, the linkage plate, and the arc-shaped protrusion of the present invention.

[0044] Explanation of reference numerals in the attached drawings: 1. Heat treatment cylinder; 2. Venting valve; 3. Quantitative feeding mechanism; 31. Annular conveyor frame; 32. Conveying cylinder; 33. Through groove; 34. Weighing scale; 35. Conveying assembly; 351. Fixed ring; 352. Guide block; 353. Conveyor belt; 4. Processing mechanism; 41. Rotating shaft; 411. Annular plate; 412. Horizontal connecting rod; 4121. Guide plate; 4122. Guide disc; 413. Stirring rod; 414. Annular block; 4141. Jet pipe; 415. Arc-shaped protrusion; 416. Linkage plate; 417. Support frame; 418. Rotating rod; 419. Gear; 410. Annular rack plate; 42. Screening frame; 421. Annular frame; 422. Connecting frame; 423. Screening screen; 43. Agitation assembly. Detailed Implementation

[0045] The following is in conjunction with the appendix Figures 1 to 12 This application will be described in further detail.

[0046] This application discloses a continuous solid waste pyrolysis gasification device, which can screen the pyrolysis solid waste and then pyrolyze it separately to ensure the fullness of solid waste pyrolysis and effectively avoid the situation of incomplete or excessive pyrolysis of solid waste due to unsuitable pyrolysis temperature. Example

[0047] Reference Figure 1 and Figure 5 A continuous solid waste pyrolysis gasification device includes a heat treatment cylinder 1, a venting valve 2 on the side wall of the heat treatment cylinder 1, a quantitative feeding mechanism 3 that cooperates with the heat treatment cylinder 1 and quantitatively conveys solid waste into it at the top of the heat treatment cylinder 1, and a processing mechanism 4 is also provided inside the heat treatment cylinder 1.

[0048] Reference Figures 2 to 4 The quantitative feeding mechanism 3 includes:

[0049] An annular conveyor frame 31 is installed on the top of the heat treatment cylinder 1, and a through groove 33 that cooperates with the heat treatment cylinder 1 is provided on the annular conveyor frame 31.

[0050] The conveying cylinder 32 is a through structure along the height direction of the heat treatment cylinder 1 and is equidistantly arranged on the annular conveying frame 31.

[0051] Weighing scale 34 is installed on the annular conveyor frame 31 and is used to weigh the solid waste inside the conveyor cylinder 32.

[0052] The conveying assembly 35 is mounted on the annular conveyor frame 31 and is used to drive the conveying cylinder 32 to move.

[0053] Conveying assembly 35 includes:

[0054] Multiple fixing rings 351 are provided, each corresponding to one of the conveying cylinders 32, and are installed on the conveying cylinders 32.

[0055] Guide blocks 352 are installed at both ends of the inner side of the annular conveyor frame 31.

[0056] The conveyor belt 353 is fitted between the two guide blocks 352, and the fixing ring 351 is installed on the conveyor belt 353.

[0057] The annular conveyor frame 31 has an annular conveying groove, the conveying cylinder 32 is set in the annular conveying groove, and the weighing meter 34 is also set inside the annular conveying groove. The top of the weighing meter 34 is level with the top of the annular conveying groove, that is, the weighing meter 34 will not collide with the conveying cylinder 32 during the movement of the conveying cylinder 32. In specific operation, at the starting position, any one of the conveying cylinders 32 is located on the weighing meter 34. At this time, solid waste is poured into the conveying cylinder 32 located on the weighing meter 34. The weighing meter 34 is observed to ensure that the weight of the solid waste in the conveying cylinder 32 does not exceed the maximum processing load of the heat treatment cylinder 1. At this time, the existing driving force (electric slider, etc.) drives the conveyor belt 353 to slide on the guide block 352, so that the conveyor belt 353 moves through the fixed ring 351 to drive the conveying cylinder 32 containing solid waste to move inside the annular conveying groove.

[0058] When the conveyor cylinder 32 containing solid waste moves to the through groove and is coaxial with the through groove 33, the conveyor cylinder 32, the through groove 33, and the heat treatment cylinder 1 containing solid waste are connected. The solid waste in the conveyor cylinder 32 falls from the through groove 33 into the heat treatment cylinder 1. At this time, the conveyor cylinder 32 without solid waste moves back to the weighing scale 34. By repeating the above actions, solid waste can be poured into the heat treatment cylinder 1 in an orderly manner.

[0059] Reference Figure 5 and Figure 6 The processing unit 4 includes:

[0060] The rotating shaft 41 is located inside the heat treatment cylinder 1 and is coaxial with the heat treatment cylinder 1.

[0061] Screening racks 42 are evenly arranged in multiples along the length of the rotating shaft 41, and the screening racks 42 are slidably sleeved on the rotating shaft 41.

[0062] The stirring component 43 is mounted on the rotating shaft 41 and corresponds one-to-one with the screening frame 42.

[0063] The heat treatment cylinder 1 has multiple heating zones with different temperatures that correspond one-to-one with the screening frame 42.

[0064] Reference Figure 6 and Figure 7 The screening frame 42 includes two concentric ring frames 421 with different diameters. The ring frame 421 with a larger diameter is slidably mounted on the inner wall of the heat treatment cylinder 1, while the ring frame 421 with a smaller diameter is slidably mounted on the rotating shaft 41. Multiple circumferentially evenly distributed connecting frames 422 are provided between the concentric ring frames 421, and the two ends of the connecting frames 422 are respectively mounted on the concentric ring frames 421. A screening screen 423 is provided on the concentric ring frames 421.

[0065] The heating zone, i.e., the inner wall of the heat treatment cylinder, is divided into sections along the axial direction with resistance wires of different powers. Each section of resistance wire is connected to an independent temperature control module. The temperature control module presets temperature parameters according to the position of the screening frame and the particle size of the solid waste. The temperature control module includes temperature sensors set for different heating zones, which feed back temperature data to the controller in real time. The controller dynamically adjusts the power of the resistance wire in the corresponding zone to ensure that the heating zone corresponds to different heating temperatures. Since resistance wire is a common existing technology, it is not shown in the figure.

[0066] In actual operation, the solid waste falling into the heat treatment cylinder 1 falls onto the screening frame 42. At this time, the through groove 33 is sealed, so that the inside of the heat treatment cylinder 1 is in a closed environment. The heat treatment cylinder 1 can heat the solid waste inside. After pyrolysis, the solid waste becomes brittle. Then, the stirring component 43 stirs the pyrolyzed solid waste so that it is spread evenly on the screening screen 423.

[0067] Multiple sliding protrusions are evenly installed along the circumference of the large-diameter annular frame, and sliding grooves that cooperate with the sliding protrusions are provided on the inner wall of the heat treatment cylinder 1.

[0068] Reference Figures 8 to 10 The stirring assembly 43 includes an annular plate 411 that is slidably and limitably disposed on the circumferential surface of the rotating shaft 41 and located above the corresponding screening frame 42 along the length direction of the rotating shaft 41. A horizontal connecting rod 412 is installed on the annular plate 411, and a plurality of stirring rods 413 are evenly disposed at the bottom of the horizontal connecting rod 412 along its length direction.

[0069] The heat treatment cylinder 1 has a through structure, and the rotating shaft 41 is installed at the bottom of the heat treatment cylinder 1 through a fixing frame. A collection frame is snapped into the bottom of the heat treatment cylinder 1. The aperture of the screening screen 423 decreases from top to bottom. A long strip protrusion is provided on the circumference of the rotating shaft 41, and a limiting groove is provided on the annular plate 411 to cooperate with the long strip protrusion. The long strip protrusion can slide inside the limiting groove.

[0070] The stirring rod 413 is rotatably mounted at the bottom of the horizontal connecting rod 412 via a bearing. In actual operation, the existing drive motor (not shown in the figure) drives the rotating shaft 41 to rotate. During the rotation of the rotating shaft 41, the annular plate 411 and the horizontal connecting rod 412 cooperate to drive the stirring rod 413 to rotate around the rotating shaft 41. During the rotation of the stirring rod 413, a horizontal force can be applied to the pyrolysis solid waste and agitate it, so that the solid waste is spread flat on the screening screen 423 and screened through the screening screen 423. Solid waste smaller than the corresponding screening screen 423 aperture falls down to the next screening screen 423, while solid waste larger than the corresponding screening screen 423 aperture remains on the corresponding screening screen 423.

[0071] Repeating these steps allows for the screening of the pyrolysis-induced solid waste. Following the control logic that larger particle sizes correspond to higher temperatures in the heating zones, a precise match between the solid waste and the pyrolysis temperature is achieved. Simultaneously, the screened solid waste is distributed in portions, significantly reducing the load on each layer of the screening mesh 423. This ensures that each layer of solid waste receives sufficient pyrolysis space and heat conduction, thereby guaranteeing the sufficiency of the pyrolysis reaction.

[0072] In addition, the gas generated during pyrolysis can be periodically discharged through the vent valve 2, which maintains the stability of the internal pressure of the system and avoids the accumulation of gas from affecting the pyrolysis efficiency and the safety of equipment operation.

[0073] Reference Figure 12 In order to speed up the passage of solid waste through the screening screen 423, the present invention provides that the arc-shaped protrusions 415 and the linkage plate 416 cooperate with each other to drive the screening frame 42 to slide up and down. Specifically, the rotating shaft 41 is located at the bottom of the corresponding screening frame 42 and an annular block 414 is installed. Multiple arc-shaped protrusions 415 are evenly arranged on the annular block 414 along its circumference. The linkage plate 416 is arranged between the arc-shaped protrusions 415 and is installed at the bottom of the corresponding small diameter annular frame 421.

[0074] In actual operation, the rotating shaft 41 drives the annular block 414 to rotate synchronously during rotation. The annular block 414 drives the arc-shaped protrusion 415 to rotate synchronously during rotation. When the arc-shaped protrusion 415 contacts the linkage plate 416, the arc-shaped protrusion 415 drives the smaller diameter annular frame 421 to move upward through the linkage plate 416. At this time, the smaller diameter annular frame 421 drives the larger diameter annular frame 421 to move upward synchronously through the connecting frame 422, that is, the screening frame 42 moves upward. When the top of the arc-shaped protrusion 415 contacts the bottom of the linkage plate 416, the screening frame 42 rises to its maximum height. As the annular block 414 continues to drive the arc-shaped protrusion 415 to rotate, due to the gravity of the screening frame 42, the linkage plate 416 drives the screening frame 42 to move downward. When the linkage plate 416 disengages from the arc-shaped protrusion 415, the screening frame 42 descends to its lowest point.

[0075] During the continuous rotation of the annular block 414, the above actions are repeated in a cycle. Through the coordinated action of the arc-shaped protrusion 415 and the linkage plate 416, the screening frame 42 is driven to move up and down, making it in a high-frequency vibration state. When the screening frame 42 shakes back and forth, it will drive the pyrolysis solid waste on the screening screen 423 to vibrate synchronously, so that the solid waste is subjected to vertical vibration force and is in a dynamic screening state.

[0076] Meanwhile, the horizontal pushing force applied by the stirring rod 413 and the vertical vibration force generated by the screening frame 42 form a combined force, which promotes the rapid passage of solid waste that meets the particle size requirements through the screening mesh 423, significantly improving screening efficiency. In addition, solid waste stuck in the mesh of the screening mesh 423 will be released from the mesh under the continuous vibration of the screening frame 42, effectively avoiding the problem of clogging of the screening mesh 423 and ensuring the continuity and efficiency of the screening process.

[0077] Reference Figure 11 The top of the small-diameter ring frame 421 is equipped with a support frame 417, and the bottom of the corresponding ring plate 411 is provided with an annular groove, and the support frame 417 is slidably disposed inside the corresponding annular groove.

[0078] In actual operation, the annular frame 421 with a small diameter moves up and down repeatedly, and the annular plate 411 moves up and down synchronously through the support frame 417. Then, the annular plate 411 drives the stirring rod 413 to move synchronously with the annular frame 421 through the horizontal connecting rod 412, thereby avoiding the possibility of collision between the stirring rod 413 and the screening screen 423. In addition, during the rotation of the annular plate 411, the support frame 417 slides inside the annular groove. The annular groove makes way for the support frame 417 during the rotation of the annular plate 411, avoiding collision between the support frame 417 and the annular plate 411.

[0079] Reference Figure 9 and Figure 10 A rotating rod 418 is provided at the bottom of the circumferential surface of the stirring rod 413, and the rotating rods 418 on adjacent stirring rods 413 are staggered along the height direction of the stirring rod 413. The stirring rod 413 is also equipped with meshing gears 419. The support frame 417 is equipped with an annular rack plate 410 that meshes with the corresponding gear 419 through a fixed connecting rod.

[0080] In actual operation, as the horizontal connecting rod 412 drives the stirring rod 413 to rotate circumferentially, the gear 419 is simultaneously driven to rotate circumferentially. When the gear 419 meshes with the annular rack plate 410, it will drive the stirring rod 413 to rotate. When the stirring rod 413 rotates, it will drive the other stirring rods 413 to rotate in sequence through the meshing relationship of the gear 419. At the same time as the stirring rod 413 rotates, it will drive the coaxial rotating rod 418 to rotate synchronously. The stirring of the rotating rod 418 will fully break down the solid waste and implement disturbance treatment.

[0081] Furthermore, the gear 419 meshing transmission method causes adjacent stirring rods 413 to rotate in opposite directions, which in turn causes adjacent rotating rods 418 to rotate in the opposite direction. Simultaneously, the staggered arrangement and opposite rotation of adjacent rotating rods 418 allow them to apply irregular disturbance forces to the solid waste during rotation. This multi-directional mechanical action further enhances the vibratory screening effect of the solid waste on the screening screen 423, further improving screening efficiency and the thoroughness of particle separation.

[0082] Based on the above operating mechanism, the entire system can achieve efficient screening of solid waste and perform zoned heat treatment of solid waste according to particle size differences. After the screening process is completed, the stirring rod 413 and the rotating rod 418 will work together to continuously apply external force to the solid waste remaining on the screening mesh 423 through mechanical force, accelerating the crushing process of the solid waste. In this process, screening and crushing are carried out simultaneously. The crushed fine particles can quickly pass through the screening mesh 423 and enter the corresponding temperature zone for further pyrolysis, while the larger particles of solid waste continue to receive heat treatment in repeated crushing and screening until all solid waste is completely pyrolyzed, ensuring the integrity and efficiency of the treatment process.

[0083] Looking back Figure 6 The horizontal connecting rod 412 is symmetrically provided with guide plates 4121 along its width direction, and the rotating shaft 41 is equipped with a guide disc 4122 that cooperates with the corresponding annular rack plate 410.

[0084] In actual operation, the guide plate 4121 and the guide disk 4122 work together to shield and guide the solid waste falling from above, effectively preventing the solid waste from falling onto the surface of the gear 419 and the annular rack plate 410, thereby preventing it from having an adverse effect on the transmission efficiency of the gear 419 and the annular rack plate 410. Example

[0085] Reference Figure 12 Based on Embodiment 1, Embodiment 2, in order to further reduce the clogging problem of the screening screen 423, provides an air jet pipe 4141 that can spray gas to clear the screen 423. Specifically, the annular block 414 is provided with a connecting protrusion on its side, and the air jet pipe 4141 is rotatably mounted on the connecting protrusion through a bearing.

[0086] The jet pipe 4141 is connected to the outlet of an existing air pump (not shown in the figure), and then the existing driving force (motor, etc.) drives the jet pipe 4141 to rotate. The surface of the jet pipe 4141 has air outlet holes. During operation, as the rotating shaft 41 rotates, the connecting protrusion drives the jet pipe 4141 to rotate circumferentially around the rotating shaft 41. When the jet pipe 4141 rotates, it blows airflow into the screening screen 423, generating a blowing force on the solid waste inside the screen openings, effectively preventing screen blockage caused by solid waste jamming. During the rotation of the jet pipe 4141, the positions of its radially distributed air outlet holes continuously change around the axis of the jet pipe 4141, preventing the air outlets from always being directly facing the screening screen 423.

[0087] When larger solid waste particles (whose gravity is greater than the airflow impact force) fall from the screen and cause blockage of the air outlet, the blocked air outlet can be discharged by the combined action of the solid waste's own gravity and the airflow impact force when the jet pipe 4141 rotates to a 180-degree position. This dynamic unblocking mechanism ensures the stability of the airflow output of the jet pipe 4141.

[0088] The implementation principle of this invention is as follows:

[0089] (1): Place the solid waste to be treated into the processing cylinder in sequence and observe the weighing scale 34 to ensure that the weight of the solid waste in the conveying cylinder 32 does not exceed the maximum processing load of the heat treatment cylinder 1. At this time, the existing driving force (electric slider, etc.) drives the conveyor belt 353 to slide on the guide block 352. During the movement of the conveyor belt 353, the conveyor cylinder 32 containing solid waste moves in the annular conveying groove through the fixed ring 351. When the conveyor cylinder 32 containing solid waste moves to the through groove and is coaxial with the through groove 33, the conveyor cylinder 32 containing solid waste, the through groove 33 and the heat treatment cylinder 1 are connected. The solid waste in the conveyor cylinder 32 falls from the through groove 33 into the heat treatment cylinder 1.

[0090] (2): The solid waste falling into the heat treatment cylinder 1 falls onto the screening rack 42. At this time, the heat treatment cylinder 1 can heat the solid waste inside it. After pyrolysis, the solid waste becomes brittle. Then, the stirring component 43 stirs the pyrolyzed solid waste so that it is spread flat on the screening mesh 423.

[0091] (3): During the rotation of the rotating shaft 41, the annular plate 411 and the horizontal connecting rod 412 cooperate to drive the stirring rod 413 to rotate around the rotating shaft 41. During the rotation of the stirring rod 413, a horizontal force can be applied to the pyrolyzed solid waste and agitated, so that the solid waste is spread on the screening screen 423 and screened through the screening screen 423. Solid waste smaller than the corresponding screening screen 423 aperture falls down to the next screening screen 423, and solid waste larger than the corresponding screening screen 423 aperture remains on the corresponding screening screen 423.

[0092] (4): After the screening process is completed, the stirring rod 413 and the rotating rod 418 will work together to continuously apply external force to the solid waste remaining on the screening screen 423 through mechanical force, thereby accelerating the crushing process of the solid waste. During this process, screening and crushing are carried out simultaneously. The crushed fine particles can quickly pass through the screening screen 423 and enter the corresponding temperature zone for further pyrolysis, while the larger solid waste particles continue to be heat-treated in repeated crushing and screening until all solid waste is completely pyrolyzed.

[0093] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0094] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A continuous solid waste pyrolysis gasification device, comprising a heat treatment cylinder (1), wherein a venting valve (2) is provided on the side wall of the heat treatment cylinder (1), characterized in that: The heat treatment cylinder (1) is equipped with a quantitative feeding mechanism (3) that works in conjunction with it to quantitatively convey solid waste into it. The heat treatment cylinder (1) is also equipped with a processing mechanism (4), which includes: The rotating shaft (41) is located inside the heat treatment cylinder (1) and is coaxial with the heat treatment cylinder (1); Screening racks (42) are evenly arranged in multiple ways along the length of the rotating shaft (41), and the screening racks (42) are slidably sleeved on the rotating shaft (41); A stirring component (43) is mounted on a rotating shaft (41) and corresponds one-to-one with a screening frame (42); The heat treatment cylinder (1) has multiple heating zones with different temperatures that correspond one-to-one with the screening frame (42). The heating zones are resistance wires arranged in sections along the axial direction on the inner wall of the heat treatment cylinder (1), and the resistance wires corresponding to different heating zones have different power. The screening frame (42) includes two concentric ring frames (421) with different diameters. The ring frame (421) with a larger diameter is slidably mounted on the inner wall of the heat treatment cylinder (1), and the ring frame (421) with a smaller diameter is slidably mounted on the rotating shaft (41). Multiple circumferentially evenly distributed connecting frames (422) are provided between the concentric ring frames (421), and the two ends of the connecting frames (422) are respectively mounted on the concentric ring frames (421). Screening mesh (423) is provided on the concentric ring frames (421). The stirring assembly (43) includes an annular plate (411) which is slidably and limited along the length of the rotating shaft (41) and located above the corresponding screening frame (42). A horizontal connecting rod (412) is installed on the annular plate (411), and multiple stirring rods (413) are evenly arranged at the bottom of the horizontal connecting rod (412) along its length. A support frame (417) is installed on the top of the small-diameter ring frame (421), and an annular groove is provided at the bottom of the corresponding annular plate (411), and the support frame (417) is slidably disposed inside the corresponding annular groove.

2. The continuous solid waste pyrolysis gasification equipment according to claim 1, characterized in that: The quantitative feeding mechanism (3) includes: An annular conveyor frame (31) is set on the top of the heat treatment cylinder (1), and a through groove (33) that cooperates with the heat treatment cylinder (1) is provided on the annular conveyor frame (31). The conveying cylinder (32) is a through structure along the height direction of the heat treatment cylinder (1) and is equidistantly arranged on the annular conveying frame (31); Weighing scale (34) is installed on the annular conveyor frame (31) and is used to weigh the solid waste inside the conveyor cylinder (32); The conveying assembly (35) is mounted on the annular conveyor frame (31) and is used to drive the conveying cylinder (32) to move.

3. The continuous solid waste pyrolysis gasification equipment according to claim 2, characterized in that: The conveying assembly (35) includes: Multiple fixing rings (351) are provided and correspond one-to-one with the conveying cylinder (32), and are installed on the conveying cylinder (32); Guide blocks (352) are installed at both ends of the inner side of the annular conveyor frame (31); The conveyor belt (353) is fitted between the two guide blocks (352), and the fixing ring (351) is installed on the conveyor belt (353).

4. The continuous solid waste pyrolysis gasification equipment according to claim 1, characterized in that: The rotating shaft (41) is located at the bottom of the corresponding screening frame (42) and an annular block (414) is installed. Multiple arc-shaped protrusions (415) are evenly arranged on the annular block (414) along its circumference. A linkage plate (416) is arranged between the arc-shaped protrusions (415), and the linkage plate (416) is installed at the bottom of the corresponding small diameter annular frame (421).

5. A continuous solid waste pyrolysis gasification device according to claim 4, characterized in that: A rotating rod (418) is provided at the bottom of the circumference of the stirring rod (413), and the rotating rods (418) on adjacent stirring rods (413) are staggered along the height direction of the stirring rod (413). The stirring rod (413) is also equipped with meshing gears (419), and the support frame (417) is equipped with an annular rack plate (410) that meshes with the corresponding gear (419) through a fixed connecting rod.

6. The continuous solid waste pyrolysis gasification equipment according to claim 5, characterized in that: A connecting protrusion is provided on the side of the annular block (414), and an air jet pipe (4141) is rotatably mounted on the connecting protrusion via a bearing.

7. A continuous solid waste pyrolysis gasification device according to claim 5, characterized in that: A guide plate (4121) is symmetrically arranged on the horizontal connecting rod (412) along its width direction, and a guide disc (4122) that cooperates with the corresponding annular rack plate (410) is installed on the rotating shaft (41).

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