Solid waste pyrolysis treatment device

Abstract

This invention provides a solid waste pyrolysis treatment device, relating to the field of solid waste treatment technology. It includes a solid waste pyrolysis treatment body, supporting legs, a carrying plate, a discharge pipe, and a screw conveyor. The solid waste pyrolysis treatment body has a pyrolysis chamber, and a guide pipe communicating with the pyrolysis chamber is provided at the bottom of the solid waste pyrolysis treatment body. The solid waste pyrolysis treatment body is connected to and supported by the supporting legs, and the carrying plate is disposed on the supporting legs. One end of the guide pipe facing away from the solid waste pyrolysis treatment body is connected to the inlet of the discharge pipe, and the outlet of the discharge pipe is connected to the slag inlet of the screw conveyor through a connecting pipe. The screw conveyor is mounted on the carrying plate, and the slag discharge port of the screw conveyor is adapted to be connected to an ash and slag collection device. This invention can achieve closed-loop conveying of ash and slag through the screw conveyor, avoiding dust pollution generated during manual ash removal and effectively improving the working environment.

Description

Technical Field

[0001] This invention relates to the field of solid waste treatment technology, and in particular to a solid waste pyrolysis treatment device. Background Technology

[0002] Solid waste includes household waste, industrial waste, etc. After anaerobic high-temperature pyrolysis, solid waste can be converted into syngas, pyrolytic char, and other zero-carbon fuel-related products, realizing the energy-based and zero-carbon utilization of solid waste and effectively combining solid waste treatment with zero-carbon fuel production. Pyrolysis, by heating and decomposing organic matter under anaerobic conditions, can reduce pollution emissions during solid waste treatment, achieve resource recovery, and provide raw materials for zero-carbon fuel production. It is a core technology for solid waste treatment that combines environmental protection and resource utilization, and has become an important technological direction bridging solid waste reduction and zero-carbon fuel development.

[0003] Although solid waste pyrolysis treatment devices in related technologies can ensure that solid waste is fully burned and avoid the emission of flue gas into the air and causing air pollution, in actual use, because the bottom of its outer shell is usually an open structure, ash and slag are directly accumulated, and the shell cover needs to be opened manually to clean the ash, which easily generates dust and causes secondary pollution. Summary of the Invention

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

[0005] Therefore, embodiments of the present invention propose a solid waste pyrolysis treatment device, which can achieve closed-loop conveying of ash and slag through a screw conveyor, avoiding dust pollution generated during manual ash removal and effectively improving the working environment.

[0006] According to an embodiment of the present invention, a solid waste pyrolysis treatment device includes a solid waste pyrolysis treatment body, a support leg, a carrying plate, a discharge pipe, and a screw conveyor. The solid waste pyrolysis treatment body has a pyrolysis chamber, and a guide pipe communicating with the pyrolysis chamber is provided at the bottom of the solid waste pyrolysis treatment body. The solid waste pyrolysis treatment body is connected to the support leg for support, and the carrying plate is disposed on the support leg. One end of the guide pipe away from the solid waste pyrolysis treatment body is connected to the inlet of the discharge pipe, and the outlet of the discharge pipe is connected to the slag inlet of the screw conveyor through a connecting pipe. The screw conveyor is mounted on the carrying plate, and the slag discharge port of the screw conveyor is adapted to be connected to an ash collection device.

[0007] According to the solid waste pyrolysis treatment device of the present invention, during use, the solid waste to be treated can be put into the pyrolysis chamber of the solid waste pyrolysis treatment body for pyrolysis treatment. The ash generated during the treatment process enters the discharge pipe and the connecting pipe in sequence through the guide pipe under the action of gravity, and finally falls into the interior of the screw conveyor. At this time, the screw conveyor is started, and the spiral blades inside rotate to transport the ash from the ash inlet to the ash outlet for collection by the ash collection device. The entire ash conveying process is in a closed state, which effectively avoids the dust problem generated during manual ash cleaning and reduces secondary pollution. Therefore, compared with related technologies, the present invention can realize the closed conveying of ash through the screw conveyor, avoid the dust pollution generated during manual ash cleaning, and effectively improve the working environment.

[0008] In some embodiments, the loading plate is horizontally arranged below the solid waste pyrolysis treatment body and spaced apart from the solid waste pyrolysis treatment body, and the spiral conveyor is provided on the top of the loading plate.

[0009] In some embodiments, the solid waste pyrolysis treatment device further includes a cooling pipe and a water storage tank. The cooling pipe is sleeved on the outer shell of the screw conveyor and a cooling channel is formed between them. The cooling pipe has an inlet and an outlet that communicate with the cooling channel. The water storage tank is located on the load plate and has an injection pipe and a drain pipe. The injection pipe is adapted to allow cooling water to flow in. The water supply port of the water storage tank is connected to the inlet via a circulating water pump to supply cooling water to the cooling channel, thereby allowing the cooling water to exchange heat with the high-temperature ash and slag inside the screw conveyor. The outlet is connected to the return port of the water storage tank.

[0010] In some embodiments, the cooling pipe is further provided with heat sinks, which are located in the cooling channel, and there are multiple heat sinks arranged at intervals in the cooling channel.

[0011] In some embodiments, the end of the heat sink facing away from the cooling pipe is connected to the outer casing of the screw conveyor.

[0012] In some embodiments, the solid waste pyrolysis treatment apparatus further includes a closing plate, which is movably connected to the discharge pipe and has a first position that blocks the outlet of the discharge pipe and a second position that opens the outlet of the discharge pipe.

[0013] In some embodiments, the discharge pipe is provided with an opening, and the solid waste pyrolysis treatment device further includes a telescopic cylinder. The cylinder body of the telescopic cylinder is connected to the discharge pipe and located outside the discharge pipe. The piston rod of the telescopic cylinder is connected to the closing plate through a mounting plate to push and pull the closing plate to switch between the first position and the second position. When the closing plate switches from the first position to the second position, it is movably connected to the opening.

[0014] In some embodiments, the solid waste pyrolysis treatment device further includes a support rod connected to the mounting plate and located below the closing plate, wherein one end of the support rod opposite to the mounting plate is movably connected to the discharge pipe.

[0015] In some embodiments, the solid waste pyrolysis treatment apparatus further includes an inclined plate, which is disposed at the outlet of the discharge pipe and arranged downwardly in the direction toward the connecting pipe. In the first position, the closing plate abuts against the inclined plate to block the outlet of the discharge pipe.

[0016] In some embodiments, the inclined plate has a first side and a second side arranged opposite to each other in its thickness direction, and the closed plate abuts against the first side at the first position;

[0017] The solid waste pyrolysis treatment device further includes a support plate, which is connected to the discharge pipe and has a first mounting surface facing the second side. The first mounting surface is connected to and in surface contact with the second side.

[0018] 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

[0019] Figure 1 This is a first-view structural schematic diagram of a solid waste pyrolysis treatment device according to an embodiment of the present invention.

[0020] Figure 2 This is a structural schematic diagram of a solid waste pyrolysis treatment device according to an embodiment of the present invention from a second perspective.

[0021] Figure 3 This is a third-view structural schematic diagram of a solid waste pyrolysis treatment device according to an embodiment of the present invention (the cooling pipe is cut out in the figure).

[0022] Figure 4 yes Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0023] Figure 5 This is a schematic diagram of the connection structure of the solid waste pyrolysis treatment body, support legs, guide pipe, discharge pipe, carrying plate, telescopic cylinder, mounting plate and closing plate in the solid waste pyrolysis treatment device according to an embodiment of the present invention.

[0024] Figure 6 yes Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0025] Figure label: 1. Solid waste pyrolysis treatment body; 2. Support leg; 3. Guide pipe; 4. Discharge pipe; 5. Carrying plate; 6. Screw conveyor; 7. Connecting pipe; 8. Cooling pipe; 9. Heat sink; 10. Water storage tank; 11. Water injection pipe; 12. Drainage pipe; 13. Circulating water pump; 14. Opening; 15. Telescopic cylinder; 16. Mounting plate; 17. Closing plate; 18. Support rod; 19. Inclined plate; 20. Support plate. Detailed Implementation

[0026] 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.

[0027] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a solid waste pyrolysis treatment device, comprising a solid waste pyrolysis treatment body 1, a support leg 2, a carrying plate 5, a discharge pipe 4, and a screw conveyor 6. The solid waste pyrolysis treatment body 1 has a pyrolysis chamber, and a guide pipe 3 communicating with the pyrolysis chamber is provided at the bottom of the solid waste pyrolysis treatment body 1. The solid waste pyrolysis treatment body 1 is connected to the support leg 2 for support by the support leg 2, and the carrying plate 5 is disposed on the support leg 2. One end of the guide pipe 3 away from the solid waste pyrolysis treatment body 1 is connected to the inlet of the discharge pipe 4, and the outlet of the discharge pipe 4 is connected to the slag inlet of the screw conveyor 6 through a connecting pipe 7. The screw conveyor 6 is installed on the carrying plate 5, and the slag outlet of the screw conveyor 6 is adapted to be connected to an ash collection device.

[0028] According to the solid waste pyrolysis treatment device of the present invention, when in use, the solid waste to be treated can be put into the pyrolysis chamber of the solid waste pyrolysis treatment body 1 for pyrolysis treatment. The ash generated during the treatment process enters the discharge pipe 4 and the connecting pipe 7 in sequence through the guide pipe 3 under the action of gravity, and finally falls into the interior of the screw conveyor 6. At this time, the screw conveyor 6 is started, and the spiral blades inside rotate to transport the ash from the ash inlet to the ash outlet for collection by the ash collection device. The entire ash conveying process is in a closed state, which effectively avoids the dust problem generated during manual ash cleaning and reduces secondary pollution. Therefore, compared with related technologies, the present invention can realize the closed conveying of ash through the screw conveyor 6, avoid the dust pollution generated during manual ash cleaning, and effectively improve the working environment.

[0029] Specifically, the specific structure and working principle of the solid waste pyrolysis treatment body 1 and the screw conveyor 6 can adopt existing technologies in this field, and will not be elaborated here. The support legs 2 can be a pair and arranged at intervals below the solid waste pyrolysis treatment body 1, and the two support legs 2 are jointly fixed with a load plate 5.

[0030] It should be noted that because a closed slag conveying channel is formed between the guide pipe 3, the discharge pipe 4, the connecting pipe 7 and the screw conveyor 6, the entire slag conveying process can be in a closed state, which can effectively avoid dust problems compared with the existing manual dust removal method.

[0031] like Figure 1 and Figure 2 As shown, in some embodiments, the carrier plate 5 is horizontally arranged below the solid waste pyrolysis treatment body 1 and spaced apart from the solid waste pyrolysis treatment body 1. The top of the carrier plate 5 is provided with a screw conveyor 6. At this time, the guide pipe 3, the discharge pipe 4, the connecting pipe 7 and the screw conveyor 6 are arranged in sequence from top to bottom. In other words, the top of the screw conveyor 6 is provided with a connecting pipe 7, the top of the connecting pipe 7 is fixedly connected to the bottom of the discharge pipe 4, and the bottom of the guide pipe 3 is connected to the discharge pipe 4.

[0032] It is understandable that, since the load plate 5 is arranged below the solid waste pyrolysis treatment body 1, and the screw conveyor 6 is installed on the load plate 5, and the guide pipe 3, discharge pipe 4 and connecting pipe 7 are located between the solid waste pyrolysis treatment body 1 and the screw conveyor 6, the aforementioned structural arrangement can improve the integration of the solid waste pyrolysis treatment device and reduce its overall volume.

[0033] like Figure 1 and Figure 2 As shown, in some embodiments, the solid waste pyrolysis treatment device further includes a cooling pipe 8 and a water storage tank 10. The cooling pipe 8 is sleeved on the outer shell of the screw conveyor 6, and a cooling channel is formed between the two. The cooling pipe 8 is provided with an inlet and an outlet that communicate with the cooling channel. The water storage tank 10 is provided on the load plate 5 and has a water injection pipe 11 and a drain pipe 12. The water injection pipe 11 is adapted to introduce cooling water. The water supply port of the water storage tank 10 is connected to the water inlet through a circulating water pump 13 to supply cooling water to the cooling channel, thereby enabling the cooling water to exchange heat with the high-temperature ash and slag in the screw conveyor 6. The outlet is connected to the return water port of the water storage tank 10.

[0034] It is understandable that a cooling pipe 8 is installed on the outer shell of the screw conveyor 6, and a cooling water circulation system is formed in conjunction with the water storage tank 10 and the circulating water pump 13. That is, the circulating water pump 13 can draw out the cooling water in the water storage tank 10 and pump it into the cooling channel. The cooling water flows in the cooling channel and exchanges heat with the high-temperature ash inside the screw conveyor 6. After absorbing heat, the cooling water flows back to the water storage tank 10 to achieve circulating cooling, thereby reducing the temperature of the ash and avoiding safety hazards or equipment damage caused by high-temperature ash during transportation and collection.

[0035] Specifically, a cooling pipe 8 is fixed to the outer casing of the screw conveyor 6. The inner wall of the cooling pipe 8 and the outer wall of the screw conveyor 6 together form a closed cooling channel. A water storage tank 10 can be fixed to the top of the load plate 5. The water storage tank 10 can be arranged beside the screw conveyor 6. A water injection pipe 11 and a drain pipe 12 are respectively provided on both sides of the water storage tank 10. The water injection pipe 11 is suitable for connecting to an external water source so that cooling water can be introduced into the water storage tank 10 to replenish the water. The drain pipe 12 is suitable for discharging the aging cooling water that needs to be replaced in the water storage tank 10 or discharging the impurities deposited in the water storage tank 10. A circulating water pump 13 can be installed on the top of the water storage tank 10. The inlet of the circulating water pump 13 is connected to the outlet of the water storage tank 10 through a pipe. The outlet of the circulating water pump 13 is connected to the inlet through a pipe. The outlet is connected to the return water port of the water storage tank 10 through a pipe.

[0036] like Figure 3 and Figure 4 As shown, in some embodiments, the cooling pipe 8 is also provided with heat sinks 9. The heat sinks 9 are located in the cooling channel. There are multiple heat sinks 9 and they are arranged at intervals in the cooling channel. In other words, multiple heat sinks 9 are fixed on the inner wall of the cooling pipe 8. At this time, the heat sinks 9 can increase the heat exchange area between the cooling pipe 8 and the ash inside the spiral slag conveyor 6, and significantly improve the cooling efficiency of the high-temperature ash.

[0037] like Figure 3 and Figure 4 As shown, in some embodiments, the end of the heat sink 9 facing away from the cooling pipe 8 is connected to the outer casing of the screw conveyor 6, that is, the other side of the plurality of heat sinks 9 is fixedly connected to the outer casing of the screw conveyor 6.

[0038] It is understandable that, based on the above structure, the heat sink 9 can not only increase the heat exchange area between the cooling pipe 8 and the ash inside the screw conveyor 6, but also increase the connection strength between the cooling pipe 8 and the outer shell of the screw conveyor 6.

[0039] like Figure 5 and Figure 6 As shown, in some embodiments, the solid waste pyrolysis treatment device further includes a closing plate 17, which is movably connected to the discharge pipe 4 and has a first position that blocks the outlet of the discharge pipe 4 and a second position that opens the outlet of the discharge pipe 4, so that the pyrolysis treatment device can be conveniently switched between pyrolysis or slag discharge operations by switching between the first and second positions of the closing plate 17.

[0040] Specifically, the closing plate 17 can be pivotally connected to the discharge pipe 4, or the closing plate 17 can be movably connected to the discharge pipe 4. That is, the closing plate 17 can be used in one of the two ways mentioned above to cooperate with the discharge pipe 4 to ensure the smooth operation of the solid waste pyrolysis treatment device for pyrolysis or slag discharge.

[0041] like Figure 5 and Figure 6 As shown, in some embodiments, the discharge pipe 4 is provided with an opening 14, and the solid waste pyrolysis treatment device also includes a telescopic cylinder 15. The cylinder body of the telescopic cylinder 15 is connected to the discharge pipe 4 and located outside the discharge pipe 4. The piston rod of the telescopic cylinder 15 is connected to the closing plate 17 through the mounting plate 16 to push and pull the closing plate 17 to switch between a first position and a second position. When the closing plate 17 switches from the first position to the second position, it is movably connected to the opening 14.

[0042] Understandably, when the solid waste pyrolysis treatment body 1 is undergoing a pyrolysis reaction, the piston rod of the telescopic cylinder 15 can be controlled to retract, causing the mounting plate 16 and the closing plate 17 to move into the discharge pipe 4. This allows the closing plate 17 to block the internal channel of the discharge pipe 4, preventing the leakage of flue gas or unreacted substances generated during the pyrolysis process through the discharge pipe 4. This ensures that the pyrolysis reaction takes place in a relatively closed environment, improving pyrolysis efficiency and treatment effect. When it is necessary to discharge ash and slag, the piston rod of the telescopic cylinder 15 is controlled to extend, pushing the mounting plate 16 and the closing plate 17 to move out of the discharge pipe 4, opening the discharge pipe 4 channel, and allowing the ash and slag to fall smoothly into the screw conveyor 6.

[0043] Specifically, an opening 14 may be provided on the side wall of the discharge pipe 4. Telescopic cylinders 15 are fixed to both sides of the discharge pipe 4, and the piston rods of the two telescopic cylinders 15 are jointly fixed to a mounting plate 16. A closing plate 17 is fixed to one side of the mounting plate 16 in its thickness direction. The closing plate 17 passes through the opening 14 and is located inside the discharge pipe 4. The telescopic cylinder 15 may be, but is not limited to, a pneumatic cylinder, an oil cylinder, a hydraulic cylinder, or an electric cylinder.

[0044] like Figure 5 and Figure 6 As shown, in some embodiments, the solid waste pyrolysis treatment device further includes a support rod 18, which is connected to the mounting plate 16 and located below the closing plate 17. One end of the support rod 18 away from the mounting plate 16 is movably connected to the discharge pipe 4.

[0045] Understandably, the support rod 18 can provide stable support for the closing plate 17 during its movement, preventing the closing plate 17 from tilting or shaking due to its own weight or impact from ash and slag, ensuring that the closing plate 17 accurately blocks or opens the discharge pipe 4, thus improving the stability and reliability of the device.

[0046] Specifically, two horizontally arranged support rods 18 can be fixed at the bottom of the closing plate 17, with the two support rods 18 extending to the outside of the discharge pipe 4 from one end away from the mounting plate 16.

[0047] like Figure 5 and Figure 6As shown, in some embodiments, the solid waste pyrolysis treatment device further includes an inclined plate 19, which is disposed at the outlet of the discharge pipe 4 and is arranged downward in the direction toward the connecting pipe 7. In a first position, the closing plate 17 abuts against the inclined plate 19 to block the outlet of the discharge pipe 4.

[0048] Understandably, the setting of the inclined plate 19 further enhances the sealing effect of the closing plate 17 on the discharge pipe 4. When the closing plate 17 is in the first position (that is, the closing plate 17 is in the closed state), its two sides are closely attached to the inclined surface of the inclined plate 19 to form a good sealing structure. This can effectively prevent the leakage of flue gas, odor and fine ash particles generated during pyrolysis through the gap between the closing plate 17 and the inner wall of the discharge pipe 4, thereby further improving the environmental performance and pyrolysis reaction efficiency of the solid waste pyrolysis treatment device.

[0049] Meanwhile, the inclined design of the inclined plate 19 also plays a certain guiding role in the falling ash and slag. When the closing plate 17 is in the second position (that is, after the closing plate 17 is opened), the ash and slag can slide smoothly down the inclined surface of the inclined plate 19 to the connecting pipe 7, avoiding the accumulation and blockage of ash and slag inside the discharge pipe 4.

[0050] Specifically, inside the discharge pipe 4, below the closing plate 17, there are two symmetrically distributed inclined plates 19, and the inclined surfaces of the two inclined plates 19 respectively seal against the two sides of the closing plate 17.

[0051] like Figure 5 and Figure 6 As shown, in some embodiments, the inclined plate 19 has a first side and a second side arranged opposite to each other in its thickness direction, and the closing plate 17 abuts against the first side in a first position.

[0052] The solid waste pyrolysis treatment device also includes a support plate 20, which is connected to the discharge pipe 4 and has a first mounting surface facing the second side. The first mounting surface is connected to the second side and in surface contact.

[0053] Understandably, the support plate 20 provides a stable mounting base for the inclined plate 19. Through the fixed connection with the inner wall of the discharge pipe 4, the inclined plate 19 is reliably fixed in the preset position, ensuring that the inclined plate 19 will not be displaced or deformed under long-term impact and vibration of ash and slag. This ensures a continuous and effective sealing contact between the inclined plate 19 and the closing plate 17, as well as a stable guiding effect on the ash and slag, further enhancing the stability and service life of the entire discharge pipe 4 structure.

[0054] Specifically, support plates 20 are fixed on both sides of the inner wall of the discharge pipe 4, and one side of each support plate 20 is fixedly connected to two inclined plates 19.

[0055] Therefore, compared with related technologies, the present invention achieves closed-loop conveying of ash and slag through the spiral conveyor 6, avoiding dust pollution generated during manual ash removal, effectively improving the working environment, and reducing the harm to the health of operators. At the same time, a cooling pipe 8 is set on the spiral conveyor 6, and a cooling water circulation system is formed with the water storage tank 10 and the circulating water pump 13. In addition, heat sinks 9 are added to the inner wall of the cooling pipe 8, which significantly improves the cooling efficiency of high-temperature ash and slag, effectively avoiding potential safety hazards and equipment damage that may be caused by high-temperature ash and slag during the conveying process. The telescopic cylinder 15 designed at the discharge pipe 4 drives the closing plate 17 structure, which, combined with the sealing and guiding function of the inclined plate 19, can not only reliably block the discharge channel during the pyrolysis reaction to prevent flue gas leakage and ensure pyrolysis efficiency, but also guide the ash and slag to fall smoothly during slag discharge, avoiding accumulation and blockage.

[0056] The working process of this solid waste pyrolysis treatment device will now be explained, taking the telescopic cylinder 15 as an example, based on its specific structure: In actual operation, the solid waste to be treated is first put into the solid waste pyrolysis treatment body 1, and the pyrolysis working program of the solid waste pyrolysis treatment body 1 is started. At the same time, the cylinder output ends on both sides of the discharge pipe 4 are controlled to retract. The cylinder drives the mounting plate 16 to move into the discharge pipe 4. The mounting plate 16 simultaneously pulls the closing plate 17 through the opening 14 and into the discharge pipe 4. At this time, the support rod 18 at the bottom of the closing plate 17 moves synchronously with it, forming a horizontal support for the closing plate 17, preventing the closing plate 17 from tilting or shaking due to its own weight or the impact of the airflow in the pyrolysis chamber. This ensures that the two sides of the closing plate 17 are tightly sealed and abutted against the inclined surfaces of the two inclined plates 19 inside the discharge pipe 4, completing the complete sealing of the internal channel of the discharge pipe 4. This prevents the leakage of flue gas, odor or unreacted solid waste particles generated during the pyrolysis process through the discharge pipe 4, ensuring that the solid waste pyrolysis reaction is carried out in a relatively closed environment, effectively improving the pyrolysis reaction efficiency and solid waste treatment effect. After the solid waste completes the pyrolysis reaction in the solid waste pyrolysis treatment body 1 to form ash, the output end of the control cylinder extends, the cylinder pushes the mounting plate 16 to move, and then drives the closing plate 17 to move out from the inside of the discharge pipe 4, opening the slag discharge channel of the discharge pipe 4. At this time, the ash falls from the pyrolysis chamber to the guide pipe 3 under the action of gravity. After being guided by the guide pipe 3, it enters the discharge pipe 4. Under the secondary guiding action of the inclined plate 19 in the discharge pipe 4, it slides smoothly to the connecting pipe 7 and finally falls into the inside of the screw conveyor 6. The inclined structure of the inclined plate 19 effectively avoids the accumulation of ash in the discharge pipe 4 and prevents the slag discharge channel from being blocked. The screw conveyor 6 is then started, and its internal spiral blades rotate to transport the ash and slag in a closed system. The ash and slag are transported from the slag inlet to the slag outlet and collected by the ash and slag collection device. The entire slag transport process is in a closed state, requiring no manual cleaning, thus avoiding dust generation at the source and eliminating secondary pollution. During this process, the circulating water pump 13 is started at the same time. The circulating water pump 13 draws cooling water from the water storage tank 10 and pumps it into the cooling pipe 8 on the outer shell of the screw conveyor 6 through the water inlet pipe. The cooling water flows at a uniform speed in the cooling pipe 8 and exchanges heat efficiently with the high-temperature ash and slag inside the screw conveyor 6 through multiple heat dissipation fins 9 on the inner wall of the cooling pipe 8. The heat dissipation fins 9 greatly increase the heat exchange contact area, accelerate the heat transfer efficiency, and quickly absorb the heat of the high-temperature ash and slag to achieve the cooling treatment of the ash and slag. This prevents the high-temperature ash and slag from burning operators, causing fires or damaging equipment during the transport and collection process, and improves the safety of the device. After heat exchange with high-temperature ash and slag, the cooling water that has absorbed heat flows back to the water storage tank 10 through the outlet hose of the cooling pipe 8, realizing the closed-loop recycling of cooling water and effectively saving water resources. During the circulating cooling process, if the cooling water level in the water storage tank 10 is insufficient, cooling water can be added to the water storage tank 10 through the water injection pipe 11. If it is necessary to replace the aging cooling water or drain the impurities deposited in the water tank, the valve of the drain pipe 12 can be opened to drain the wastewater in the water storage tank 10. After the ash residue is cooled down by the screw conveyor 6 and transported to the designated collection device, the entire process of single solid waste pyrolysis and ash residue treatment is completed. Subsequently, the device can repeat the above operating steps to achieve continuous pyrolysis treatment of multiple batches of solid waste. With the cooperation of all components, while ensuring the efficiency of solid waste pyrolysis treatment, it completely solves the secondary pollution problem in the ash and slag treatment process of traditional solid waste pyrolysis devices. The safe transportation of high-temperature ash and slag is achieved through the circulating cooling structure, which further improves the operational stability, environmental protection and reliability of the entire device.

[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 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 solid waste pyrolysis treatment device, characterized in that, include: A solid waste pyrolysis treatment body, wherein the solid waste pyrolysis treatment body has a pyrolysis chamber, and a guide pipe communicating with the pyrolysis chamber is provided at the bottom of the solid waste pyrolysis treatment body; The solid waste pyrolysis treatment body is connected to the support leg and supported by the support leg, and the carrier plate is disposed on the support leg. The discharge pipe and the screw conveyor are provided. The end of the guide pipe away from the solid waste pyrolysis treatment body is connected to the inlet of the discharge pipe. The outlet of the discharge pipe is connected to the slag inlet of the screw conveyor through a connecting pipe. The screw conveyor is installed on the carrying plate. The slag outlet of the screw conveyor is adapted to be connected to the ash collection device.

2. The solid waste pyrolysis treatment device according to claim 1, characterized in that, The loading plate is horizontally arranged below the solid waste pyrolysis treatment body and spaced apart from the solid waste pyrolysis treatment body, and the spiral slag conveyor is provided on the top of the loading plate.

3. The solid waste pyrolysis treatment device according to claim 1, characterized in that, Also includes: A cooling pipe is sleeved on the outer shell of the screw conveyor, and a cooling channel is formed between the two. The cooling pipe is provided with an inlet and an outlet that communicate with the cooling channel. A water storage tank is provided on the loading plate and has a water injection pipe and a water drain pipe. The water injection pipe is adapted to carry cooling water. The water supply port of the water storage tank is connected to the water inlet through a circulating water pump to supply cooling water to the cooling channel, thereby enabling the cooling water to exchange heat with the high-temperature ash and slag in the screw conveyor. The water outlet is connected to the water return port of the water storage tank.

4. The solid waste pyrolysis treatment device according to claim 3, characterized in that, The cooling pipe is also provided with heat sinks, which are located in the cooling channel. There are multiple heat sinks arranged at intervals in the cooling channel.

5. The solid waste pyrolysis treatment device according to claim 4, characterized in that, The end of the heat sink facing away from the cooling pipe is connected to the outer casing of the screw conveyor.

6. The solid waste pyrolysis treatment device according to claim 1, characterized in that, It also includes a closing plate, which is movably connected to the discharge pipe and has a first position that blocks the outlet of the discharge pipe and a second position that opens the outlet of the discharge pipe.

7. The solid waste pyrolysis treatment device according to claim 6, characterized in that, The discharge pipe is provided with an opening, and the solid waste pyrolysis treatment device also includes a telescopic cylinder. The cylinder body of the telescopic cylinder is connected to the discharge pipe and located outside the discharge pipe. The piston rod of the telescopic cylinder is connected to the closing plate through a mounting plate to push and pull the closing plate to switch between the first position and the second position. When the closing plate switches from the first position to the second position, it is movably connected to the opening.

8. The solid waste pyrolysis treatment device according to claim 7, characterized in that, It also includes a support rod, which is connected to the mounting plate and located below the closing plate, with one end of the support rod facing away from the mounting plate being movably connected to the discharge pipe.

9. The solid waste pyrolysis treatment apparatus according to any one of claims 6-8, characterized in that, It also includes an inclined plate, which is disposed at the outlet of the discharge pipe and is arranged downwardly in the direction toward the connecting pipe. In the first position, the closing plate abuts against the inclined plate to block the outlet of the discharge pipe.

10. The solid waste pyrolysis treatment device according to claim 9, characterized in that, The inclined plate has a first side and a second side arranged opposite to each other in its thickness direction, and the closed plate abuts against the first side at the first position; The solid waste pyrolysis treatment device further includes a support plate, which is connected to the discharge pipe and has a first mounting surface facing the second side. The first mounting surface is connected to and in surface contact with the second side.

Images