Solid waste blending system

Abstract

This invention relates to the field of solid waste treatment technology and discloses a solid waste co-firing system, including a tank, a conveying assembly, a rotating assembly, a scraper, and a screw rod. The tank is used to store solid waste, and a discharge port is opened at the bottom of the tank. The conveying assembly is located below the discharge port and is used to convey the solid waste discharged from the discharge port. The rotating assembly is rotatably mounted on the tank. The scraper is connected to the rotating assembly and is in contact with the inner wall of the tank. The screw rod is located in the discharge port and is connected to the scraper. The scraper rotates with the rotating assembly to clean the inner wall of the tank. At the same time, the scraper drives the screw rod to rotate in the discharge port to squeeze and convey the solid waste, so that the solid waste enters the conveying assembly. The rotating scraping of the inner wall of the tank by the scraper removes the solid waste adsorbed on the inner wall in time, avoiding long-term accumulation of solid waste in the inner wall of the tank. The squeezing and conveying of the solid waste in the discharge port by the screw rod effectively breaks down the bridging and blockage formed by the solid waste at the discharge port.

Description

Technical Field

[0001] This invention belongs to the field of solid waste treatment technology, and specifically relates to a solid waste co-firing system. Background Technology

[0002] When power plants incinerate solid waste, they typically co-fire it with low-carbon fuels in the boiler to achieve resource utilization of solid waste and carbon emission reduction targets. In existing co-firing systems, solid waste is first crushed by a crusher, then conveyed by a conveyor belt to a storage tank for temporary storage. The bottom of the storage tank is equipped with an auger to quantitatively transport the solid waste to a subsequent elevator and gasifier, and finally to the boiler for co-firing.

[0003] To ensure solid waste can smoothly enter the bottom auger, existing storage tanks are typically designed with a conical bottom. However, in actual operation, solid waste is prone to clogging at the conical discharge port. On the one hand, the crushed solid waste has an irregular shape and some materials are sticky, easily adsorbing and accumulating on the inner wall of the cone; on the other hand, relying solely on gravity to fall is insufficient to guarantee continuous material flow at the discharge port. Once bridging or blockage occurs, the machine must be stopped for cleaning, severely impacting feeding efficiency and the continuous operation of the system. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a solid waste co-firing system that can prevent solid waste from clogging at the outlet of the storage tank, ensuring the stable operation of the solid waste co-firing system.

[0005] The solid waste co-firing system of this invention includes a tank, a conveying assembly, a rotating assembly, a scraper, and a screw rod. The tank is used to store solid waste, and a discharge port is opened at the bottom end of the tank. The conveying assembly is disposed below the discharge port and is used to convey the solid waste discharged from the discharge port. The rotating assembly is rotatably disposed on the tank. The scraper is connected to the rotating assembly and is in contact with the inner wall of the tank. The screw rod is located in the discharge port and is connected to the scraper. The scraper rotates with the rotating assembly to clean the inner wall of the tank, and at the same time, the scraper drives the screw rod to rotate in the discharge port to compress and convey the solid waste, thereby allowing the solid waste to enter the conveying assembly.

[0006] The solid waste co-firing system of this invention removes solid waste adsorbed on the inner wall of the tank in a timely manner by rotating and scraping the inner wall with a scraper, thus avoiding long-term accumulation of solid waste on the inner wall of the tank. The screw conveyor in the discharge port effectively breaks up the bridging and blockage formed by solid waste at the discharge port, keeping the discharge port unobstructed at all times. By connecting the scraper and the screw, a single power source can simultaneously achieve the two functions of cleaning the inner wall of the tank and forcibly unblocking the discharge port. The structure is simple and compact, reducing equipment costs and energy consumption.

[0007] In some embodiments, the bottom of the tank is inverted conical to facilitate the discharge of solid waste.

[0008] In some embodiments, the conveying assembly includes a conveying cylinder and an auger, the conveying cylinder being connected to the discharge port, and the auger being rotatably disposed within the conveying cylinder.

[0009] In some embodiments, the rotating assembly includes a rotating ring, a gear ring, a gear, and a motor. The rotating ring is rotatably connected to the top of the tank; the gear ring is fixedly sleeved on the outside of the rotating ring; the gear meshes with the gear ring; the output end of the motor is connected to the gear, and the motor is fixedly mounted on the tank, and the motor is used to drive the gear to rotate.

[0010] In some embodiments, the solid waste co-firing system further includes a fixing rod, the top end of which is connected to the bottom of the scraper, and the bottom end of which is connected to the screw rod. The screw rod is located in the discharge port, and the central axis of the screw rod is collinear with the central axis of the discharge port.

[0011] In some embodiments, the solid waste co-firing system further includes a frame and a blower, the frame being disposed on the top of the tank; the blower being disposed in the frame and used to blow air into the tank.

[0012] In some embodiments, the frame is provided with through holes for dissipating excess airflow.

[0013] In some embodiments, the solid waste co-firing system further includes a plurality of connecting blocks, which are spaced apart along the circumferential direction on the upper part of the tank, and the connecting blocks are fixedly connected to the frame.

[0014] In some embodiments, the solid waste co-firing system further includes a protective shell, which is disposed outside the gear and the gear ring, and is connected to the outer wall of the tank.

[0015] In some embodiments, the solid waste co-firing system further includes an elevator, a gasifier, and a boiler, wherein the elevator is located at the end of the conveying assembly away from the discharge port; the gasifier is connected to the elevator; and the boiler is connected to the gasifier. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the tank in this invention.

[0018] Figure 3 This is a schematic diagram of the rotating component in this invention. Figure 1 .

[0019] Figure 4 This is a schematic diagram of the rotating component in this invention. Figure 2 .

[0020] Figure label:

[0021] 1. Tank body; 2. Conveying assembly; 3. Elevator; 4. Gasifier; 5. Boiler; 6. Rotating ring; 7. Protective shell; 8. Frame; 9. Fan; 10. Scraper; 11. Discharge port; 12. Motor; 13. Gear; 14. Gear ring; 15. Fixing rod; 16. Screw rod; 17. Connecting block. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. 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.

[0023] like Figures 1-4 As shown, the solid waste co-firing system of this embodiment includes a tank 1, a conveying assembly 2, a rotating assembly, a scraper 10, and a screw rod 16. The tank 1 is used to store solid waste, and a discharge port 11 is opened at the bottom end of the tank 1. The conveying assembly 2 is located below the discharge port 11 and is used to convey the solid waste discharged from the discharge port 11. The rotating assembly is rotatably mounted on the tank 1. The scraper 10 is connected to the rotating assembly and is in contact with the inner wall of the tank 1. The screw rod 16 is located in the discharge port 11 and is connected to the scraper 10. The scraper 10 rotates with the rotating assembly to clean the inner wall of the tank 1. At the same time, the scraper 10 drives the screw rod 16 to rotate in the discharge port 11 to squeeze and convey the solid waste, so that the solid waste enters the conveying assembly 2.

[0024] The solid waste co-firing system of this invention removes solid waste adsorbed on the inner wall of the tank in a timely manner by rotating and scraping the inner wall with a scraper, thus avoiding long-term accumulation of solid waste on the inner wall of the tank. The screw conveyor in the discharge port effectively breaks up the bridging and blockage formed by solid waste at the discharge port, keeping the discharge port unobstructed at all times. By connecting the scraper and the screw, a single power source can simultaneously achieve the two functions of cleaning the inner wall of the tank and forcibly unblocking the discharge port. The structure is simple and compact, reducing equipment costs and energy consumption.

[0025] Specifically, when the scraper 10 rotates with the rotating assembly, the scraper 10 rotates against the inner wall of the tank 1, continuously scraping off the solid waste adsorbed or adhered to the inner wall, preventing the solid waste from accumulating on the inner wall of the tank for a long time and forming a blockage; at the same time, the scraper 10 drives the screw rod 16 connected to it to rotate synchronously in the discharge port 11. The rotation of the screw rod 16 generates a forced squeezing and conveying effect on the solid waste blocked at the discharge port, destroying the possible bridging structure, and forcing the solid waste to pass smoothly through the discharge port 11 and fall into the conveying assembly 2 below.

[0026] In some embodiments, the bottom of the tank 1 is inverted conical to facilitate the discharge of solid waste.

[0027] The solid waste co-firing system of this invention utilizes the inverted conical shape at the bottom of the tank to automatically collect solid waste towards the discharge port under gravity, reducing the residue of solid waste in the corners of the tank bottom and improving the discharge efficiency of solid waste in the tank. The inverted conical structure provides good material replenishment conditions for the unblocking action of the scraper and the screw rod, and works in conjunction with the scraper and the screw rod to further enhance the anti-clogging effect, ensuring that solid waste can continuously and stably enter the conveying components.

[0028] Specifically, the bottom of the tank 1 is designed with an inverted cone shape, so that the discharge port 11 is located at the lowest point of the tank 1. Under the action of gravity, the solid waste inside the tank 1 will automatically gather to the bottom and slide down the inclined inner wall of the inverted cone to the discharge port 11, providing initial power for the solid waste to enter the conveying assembly 2.

[0029] In some embodiments, the conveying assembly 2 includes a conveying cylinder and an auger, the conveying cylinder being connected to the discharge port 11, and the auger being rotatably disposed in the conveying cylinder.

[0030] The solid waste co-firing system of this invention ensures that all solid waste discharged from the outlet can enter the conveying assembly through direct connection between the conveying cylinder and the discharge port, avoiding the scattering and accumulation of solid waste below the discharge port. The rotational conveying of solid waste by the auger in the conveying cylinder realizes quantitative, continuous, and closed conveying of solid waste, avoiding the scattering and dust generation of solid waste during the conveying process. The auger conveying method has a simple structure and strong conveying capacity, and can adapt to irregularly shaped solid waste materials after crushing, ensuring a smooth transition of solid waste from the storage tank to the downstream processing equipment, and improving the operational stability and reliability of the entire co-firing system.

[0031] Specifically, the conveying cylinder is connected to the discharge port 11, and the solid waste discharged from the discharge port 11 falls directly into the conveying cylinder. The auger is rotated in the conveying cylinder. When the auger rotates, its spiral blades generate axial thrust on the solid waste in the conveying cylinder, continuously conveying the solid waste forward along the conveying cylinder to the next station.

[0032] In some embodiments, the rotating assembly includes a rotating ring 6, a gear ring 14, a gear 13, and a motor 12. The rotating ring 6 is rotatably connected to the top of the tank body 1; the gear ring 14 is fixedly sleeved on the outside of the rotating ring 6; the gear 13 meshes with the gear ring 14; the output end of the motor 12 is connected to the gear 13, and the motor 12 is fixedly mounted on the tank body 1, and the motor 12 is used to drive the gear 13 to rotate.

[0033] The solid waste co-firing system of this invention smoothly transmits the rotational power of the motor to the rotating ring through the meshing transmission of the motor, gears, and gear ring, achieving continuous rotation of the scraper. The meshing of the gears and gear ring ensures precise transmission ratios and smooth operation, guaranteeing effective cleaning of the tank's inner wall by the scraper. By rotating the ring to the top of the tank, the entire drive mechanism is located above the tank, not occupying internal space and avoiding direct contact between the drive mechanism and the solid waste inside the tank, thus improving the equipment's service life and reliability. Simultaneously, it facilitates daily maintenance and repair, reducing operating costs.

[0034] Specifically, the motor 12 is fixedly mounted on the tank body 1. When the motor 12 starts, its output end drives the gear 13 to rotate. The gear 13 meshes with the gear ring 14 fixedly sleeved on the outside of the rotating ring 6. The rotation of the gear 13 drives the gear ring 14 to rotate through the meshing transmission. The gear ring 14 then drives the rotating ring 6, which is fixedly connected to it, to rotate smoothly on the top of the tank body 1. The rotation of the rotating ring 6 provides rotational power for the scraper 10 connected to it.

[0035] In some embodiments, the solid waste co-firing system further includes a fixing rod 15, the top end of which is connected to the bottom of the scraper 10, and the bottom end of which is connected to a screw rod 16. The screw rod 16 is located in the discharge port 11, and the central axis of the screw rod 16 is collinear with the central axis of the discharge port 11.

[0036] The solid waste co-firing system of this invention connects the scraper and the screw rod with a fixed rod, realizing reliable power transmission from the scraper to the screw rod, enabling both to rotate synchronously, resulting in a simple and compact structure. The coaxial arrangement of the screw rod and the discharge port ensures that the gap between the screw rod and the inner wall of the discharge port is uniform during rotation, allowing the screw rod to apply a balanced squeezing and conveying force to the solid waste in various parts of the discharge port, avoiding local blockage or jamming that may be caused by eccentric rotation.

[0037] Specifically, the top end of the fixing rod 15 is connected to the bottom of the scraper 10, and the bottom end is connected to the auger rod 16, forming a transmission connection between the scraper 10 and the auger rod 16. When the scraper 10 rotates with the rotating assembly, the rotational power is transmitted to the auger rod 16 through the fixing rod 15, causing the auger rod 16 to rotate synchronously within the discharge port 11. The central axis of the auger rod 16 is collinear with the central axis of the discharge port 11, ensuring that the auger rod 16 is always located at the center of the discharge port 11 when rotating, and evenly acts on the solid waste in the discharge port. At the same time, the fixing rod 15 can also agitate the solid waste at the bottom conical part of the tank 1, further preventing solid waste blockage.

[0038] In some embodiments, the solid waste co-firing system further includes a frame 8 and a blower 9. The frame 8 is disposed on the top of the tank 1; the blower 9 is disposed in the frame 8 and is used to blow air into the tank 1.

[0039] The solid waste co-firing system of this invention uses a downward airflow generated by a blower to forcibly guide the light solid waste during its descent, effectively preventing the solid waste from drifting and escaping due to air disturbance during free fall. The frame is used to install and position the blower, ensuring that the blower is stably fixed at the top of the tank, guaranteeing the vertical downward direction of the airflow and preventing the airflow direction from deviating due to blower swaying.

[0040] Specifically, frame 8 is set at the top of tank 1, and blower 9 is installed in frame 8. When the crushed solid waste is transported to the top of tank 1 by external conveyor belt and begins to fall freely, blower 9 is activated, generating downward airflow, which applies downward thrust to the solid waste during the fall, forcing the lightweight solid waste to overcome air resistance and lateral airflow interference, and fall directionally into the interior of tank 1.

[0041] In some embodiments, the frame 8 has a through hole for dissipating excess airflow.

[0042] The solid waste co-firing system of this invention uses through holes in the frame to divert and regulate the airflow generated by the blower, preventing excessive airflow from creating turbulence inside the tank and blowing up the fallen solid waste again, thus ensuring the stability of the feeding process.

[0043] Specifically, the through holes on the frame 8 provide additional airflow channels. When the blower 9 blows air into the tank 1, some of the airflow escapes to the surroundings through the through holes on the frame 8, thereby regulating the actual air volume and air pressure entering the tank 1 and preventing excessive airflow from forming turbulence inside the tank.

[0044] In some embodiments, the solid waste co-firing system further includes a plurality of connecting blocks 17, which are spaced apart on the upper part of the tank 1 along the circumferential direction, and the connecting blocks 17 are fixedly connected to the frame 8.

[0045] The solid waste co-firing system of this invention provides multi-point uniform support for the frame by arranging multiple connecting blocks at intervals along the circumference, enabling the frame to be installed stably and firmly on the top of the tank, avoiding swaying or instability caused by single-point support.

[0046] Specifically, multiple connecting blocks 17 are spaced apart along the circumferential direction on the upper part of the tank 1, forming evenly distributed support points. The frame 8 is fixedly connected to these connecting blocks 17, and the connecting blocks 17 firmly support the frame 8 and the fan 9 installed on it on the top of the tank 1, so that the frame 8 and the tank 1 maintain a fixed relative position.

[0047] In some embodiments, the solid waste co-firing system further includes a protective shell 7, which covers the outside of the gear 13 and the gear ring 14, and is connected to the outer wall of the tank body 1.

[0048] The solid waste co-incineration system of this invention effectively prevents external debris, dust, moisture, etc. from entering the gear meshing area by covering the gears and gear rings with a protective shell, avoiding transmission failures caused by foreign objects entangled or stuck in the gears and gear rings. The protective shell also prevents operators from accidentally contacting the moving transmission components, improving the safety of equipment operation. At the same time, the protective shell provides a certain degree of dust and rust prevention for the gears and gear rings, extending the service life of the transmission components and reducing the frequency of maintenance. In addition, the protective shell can also reduce the noise generated by gear meshing to a certain extent, improving the working environment.

[0049] Specifically, the protective shell 7 is installed on the outside of the gear 13 and the gear ring 14 and is fixedly connected to the outer wall of the tank body 1 to form a protective space, which isolates the meshing transmission parts of the gear 13 and the gear ring 14 from the external environment.

[0050] In some embodiments, the solid waste co-firing system further includes a hoist 3, a gasifier 4, and a boiler 5. The hoist 3 is located at the end of the conveying assembly 2 away from the discharge port 11; the gasifier 4 is connected to the hoist 3; and the boiler 5 is connected to the gasifier 4.

[0051] The solid waste co-firing system of this invention lifts solid waste from the conveying components to the gasifier via a hoist, achieving continuous and stable solid waste transportation; the solid waste is gasified in the gasifier, converting it into combustible gas, thus improving the energy utilization efficiency of solid waste; and the co-firing of combustible gas in the boiler achieves the synergistic utilization of solid waste energy and low-carbon fuel, which helps to reduce the overall carbon emissions of the power plant.

[0052] Specifically, the conveying assembly 2 transports the solid waste discharged from the discharge port 11 to the end furthest from the discharge port 11. The elevator 3 is located below this end, lifting the received solid waste to a certain height before sending it into the gasifier 4. The solid waste undergoes gasification treatment in the gasifier 4, and the resulting combustible gas is transported to the boiler 5 through a pipeline. In the boiler 5, it is co-fired with low-carbon fuel to achieve resource utilization and energy recovery of the solid waste.

[0053] Working principle: When the crushed solid waste is transported to the top of the tank 1 via an external conveyor belt, the blower 9 starts to generate a downward airflow, which forcibly guides the light solid waste during the falling process to prevent it from drifting out; the through holes on the frame 8 can dissipate excess airflow and avoid the formation of turbulence inside the tank.

[0054] After solid waste enters the tank 1, it is temporarily stored inside. The bottom of the tank 1 is designed with an inverted conical structure, which uses gravity to automatically cause the solid waste to converge at the discharge port 11 at the bottom. At the same time, the motor 12 starts, and its output end drives the gear 13 to rotate. The gear 13 drives the rotating ring 6 to rotate smoothly on the top of the tank 1 through meshing with the gear ring 14. The protective shell 7 is covered on the outside of the gear 13 and the gear ring 14 to protect the transmission components.

[0055] When the rotating ring 6 rotates, it drives the scraper 10 connected to it to rotate synchronously. The inner side of the scraper 10 is in contact with the inner wall of the tank 1. During the rotation, it continuously scrapes off the solid waste adsorbed or adhered to the inner wall of the tank, preventing the solid waste from accumulating on the inner wall of the tank. The bottom of the scraper 10 is connected to the screw rod 16 through the fixing rod 15. When the scraper 10 rotates, it drives the screw rod 16 to rotate synchronously in the discharge port 11 through the fixing rod 15. The screw rod 16 is coaxially set with the discharge port 11. Its rotation generates a forced squeezing and conveying effect on the solid waste blocked at the discharge port, destroying the possible bridging structure and forcing the solid waste to pass smoothly through the discharge port 11.

[0056] Solid waste discharged from outlet 11 falls into conveying assembly 2, which is connected to the outlet. The rotating auger in conveying assembly 2 continuously transports the solid waste along the conveying cylinder to one end away from outlet 11. Elevator 3 is located at this end, lifting the solid waste to gasifier 4 for gasification. The resulting combustible gas is finally sent to boiler 5 for co-firing with low-carbon fuel, completing the entire process of solid waste from storage, transportation, and dredging to resource utilization.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A solid waste co-firing system, characterized in that, include: Tank (1), the tank (1) is used to store solid waste, and the bottom end of the tank (1) is provided with a discharge port (11). Conveying assembly (2), the conveying assembly (2) is disposed below the discharge port (11), the conveying assembly (2) is used to convey the solid waste discharged from the discharge port (11); A rotating assembly, which is rotatably mounted on the tank body (1); Scraper (10), the scraper (10) is connected to the rotating assembly, and the scraper (10) is in contact with the inner wall of the tank (1); The screw rod (16) is located in the discharge port (11) and is connected to the scraper (10); The scraper (10) rotates with the rotating assembly to clean the inner wall of the tank (1). At the same time, the scraper (10) drives the screw rod (16) to rotate in the discharge port (11) to squeeze and transport the solid waste, so that the solid waste enters the conveying assembly (2).

2. The solid waste co-firing system according to claim 1, characterized in that, The bottom of the tank (1) is inverted cone-shaped to facilitate the discharge of solid waste.

3. The solid waste co-firing system according to claim 1, characterized in that, The conveying assembly (2) includes a conveying cylinder and an auger. The conveying cylinder is connected to the discharge port (11), and the auger is rotatably disposed in the conveying cylinder.

4. The solid waste co-firing system according to claim 1, characterized in that, The rotating component includes: A rotating ring (6) is rotatably connected to the top of the tank body (1); A gear ring (14) is fixedly sleeved on the outside of the rotating ring (6); Gear (13), which meshes with the gear ring (14); The motor (12) is connected to the gear (13) at its output end. The motor (12) is fixedly mounted on the tank (1) and is used to drive the gear (13) to rotate.

5. The solid waste co-firing system according to claim 1, characterized in that, It also includes a fixing rod (15), the top end of which is connected to the bottom of the scraper (10), the bottom end of which is connected to the spiral rod (16), the spiral rod (16) is located in the discharge port (11), and the central axis of the spiral rod (16) is collinear with the central axis of the discharge port (11).

6. The solid waste co-firing system according to claim 1, characterized in that, Also includes: A frame (8) is disposed on top of the tank body (1); A blower (9) is disposed in the frame (8) and is used to blow air into the tank (1).

7. The solid waste co-firing system according to claim 6, characterized in that, The frame (8) has through holes for dissipating excess airflow.

8. The solid waste co-firing system according to claim 6, characterized in that, It also includes multiple connecting blocks (17), which are spaced apart along the circumferential direction on the upper part of the tank (1), and the connecting blocks (17) are fixedly connected to the frame (8).

9. The solid waste co-firing system according to claim 4, characterized in that, It also includes a protective shell (7), which covers the outside of the gear (13) and the gear ring (14), and the protective shell (7) is connected to the outer wall of the tank body (1).

10. The solid waste co-firing system according to claim 1, characterized in that, Also includes: Elevator (3), the elevator (3) is located at one end of the conveying assembly (2) away from the discharge port (11); Gasifier (4), which is connected to elevator (3); Boiler (5), which is connected to gasifier (4).

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