Pyrolysis reactor for organic matter solid waste

Abstract

This application relates to a pyrolysis reactor for organic solid waste, belonging to the technical field of pyrolysis reactors. It includes a conveying mechanism, a pyrolysis mechanism, and a displacement gas sealing chamber. The pyrolysis mechanism, along the conveying direction of the conveying mechanism, sequentially includes a preheating chamber, a pyrolysis reaction chamber, and a cooling chamber. The preheating chamber and the pyrolysis reaction chamber have inner and outer cavities. The inner cavities of the preheating chamber, the pyrolysis reaction chamber, and the cooling chamber are interconnected to allow passage by the conveying mechanism. A first heating component is installed in the outer cavity of the pyrolysis reaction chamber, and the outer cavity of the preheating chamber is connected to the outer cavity of the pyrolysis reaction chamber. Exhaust ports are provided in the preheating chamber and the pyrolysis reaction chamber. A cooling heat exchanger is installed in the cooling chamber, and a cooling medium flows through the cooling heat exchanger. The cooling medium is at least one of water and air. This application has the effect of improving the heat utilization rate of the pyrolysis reactor.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pyrolysis reactors for organic solid waste, in particular to a pyrolysis reactor for organic solid waste. BACKGROUND

[0002] In the field of organic solid waste treatment, pyrolysis technology is widely used because it can realize the reduction and resource utilization of solid waste. However, the existing pyrolysis reactors generally have the problem of insufficient heat utilization, which seriously restricts the thermal efficiency of the system.

[0003] The existing organic solid waste pyrolysis system usually adopts an external heating rotary kiln or a fixed bed reactor. In this type of pyrolysis reactor, high-temperature flue gas generated by fuel combustion indirectly heats the internal materials through the outer wall of the reactor to maintain the temperature conditions required for pyrolysis. However, in this process, a large amount of heat is directly lost with the discharged high-temperature flue gas, and the exhaust gas temperature is often as high as 600℃ or above, resulting in a huge exhaust gas heat loss. At the same time, the products generated by pyrolysis reaction, i.e. medium-high temperature pyrolysis gas (usually 400-600℃) and high-temperature solid carbon, are mostly directly introduced into the subsequent cooling and purification links after leaving the reactor, and the large amount of sensible heat carried by them cannot be effectively recovered and recycled.

[0004] These factors together cause only a part of the energy entering the pyrolysis system to be really used for heating and pyrolysis reaction of organic solid waste materials, and most of the energy is not fully utilized in the form of flue gas sensible heat, product sensible heat and heat dissipation, resulting in low overall thermal efficiency of the pyrolysis system. SUMMARY

[0005] In order to improve the heat utilization rate of the pyrolysis reactor, the present application provides a pyrolysis reactor for organic solid waste.

[0006] The pyrolysis reactor for organic solid waste provided by the present application adopts the following technical solution: The pyrolysis reactor of organic matter solid waste comprises a conveying mechanism for conveying organic matter solid waste materials, a pyrolysis mechanism for pyrolysis treatment of the organic matter solid waste materials, and a displacement gas sealing chamber arranged on both sides of the extending direction of the pyrolysis mechanism and in communication with the pyrolysis mechanism, the pyrolysis mechanism comprises, in sequence along the conveying direction of the conveying mechanism, a preheating temperature rising chamber, a pyrolysis reaction chamber and a cooling temperature falling chamber, the preheating temperature rising chamber and the pyrolysis reaction chamber have inner cavities and outer cavities, the inner cavity of the preheating temperature rising chamber, the inner cavity of the pyrolysis reaction chamber and the cavity of the cooling temperature falling chamber are in communication with each other for the passing of the conveying mechanism, the outer cavity of the pyrolysis reaction chamber is provided with a first heating assembly and the outer cavity of the preheating temperature rising chamber is in communication with the outer cavity of the pyrolysis reaction chamber, the preheating temperature rising chamber and the pyrolysis reaction chamber are provided with exhaust ports, the cooling temperature falling chamber is provided with a cooling heat exchange member and the cooling heat exchange member circulates a cooling medium, and the cooling medium is at least one of water and air.

[0007] By adopting the above technical scheme, in the operation process of the pyrolysis reactor of organic matter solid waste, the "preheating- pyrolysis-cooling" three-section continuous inner and outer cavity structure is constructed, and the organic matter solid waste materials in the outer cavity of the preheating temperature rising chamber are preheated by the high-temperature flue gas in the outer cavity of the pyrolysis chamber, so that the energy is utilized in stages, the waste heat is effectively recovered, the energy consumption is reduced, the pyrolysis efficiency is improved, the displacement gas sealing chambers arranged at both ends of the pyrolysis mechanism can effectively isolate the external air, so as to ensure that the pyrolysis reactor of organic matter solid waste is operated in an oxygen-free or oxygen-poor atmosphere during temperature rising, reaction and temperature falling, which is beneficial to realizing the best pyrolysis reaction effect of the organic matter solid waste materials, reducing the diffusion of the pyrolysis gas into the environment, and quickly stopping the secondary reaction by the cooling heat exchange member in the cooling temperature falling chamber, which is beneficial to obtaining high-quality solid residues.

[0008] Optionally, the heating assembly comprises a plurality of heating members arranged at intervals along the length direction of the pyrolysis reaction chamber, and the heating members arranged on opposite sides of the pyrolysis reaction chamber are arranged in pairs symmetrically or staggered along the central axis of the cross section of the pyrolysis reaction chamber.

[0009] By adopting the above technical scheme, the specific structure of the heating assembly is disclosed, a plurality of heating members are arranged at intervals along the length direction of the pyrolysis reaction chamber, and the heating members on both sides are arranged symmetrically or staggered, so that the temperature field in the pyrolysis reaction chamber is more uniform, the local overheating or cold area is reduced, the organic matter solid waste materials are uniformly heated, the pyrolysis reaction is more sufficient and stable, and the yield and product uniformity are improved.

[0010] Optionally, a second heating assembly is arranged at the outer cavity of the preheating temperature rising chamber.

[0011] By adopting the technical scheme, the second heating assembly arranged at the outer cavity of the preheating and warming chamber can independently or assistively heat the preheating and warming chamber, accelerate the temperature rising rate of the organic solid waste material, shorten the preheating time, ensure the preheating effect when the residual heat of the pyrolysis reaction chamber is insufficient, and enhance the process adjustment capability and the adaptability of the equipment to the change of the moisture content of the material.

[0012] Optionally, the inner cavity of the preheating and warming chamber, the inner cavity of the pyrolysis reaction chamber and the cooling and warming chamber are each provided with a gas inlet for inputting inert gas and a gas outlet for discharging displacement gas.

[0013] By adopting the technical scheme, the inert gas inlets and the displacement gas outlets are arranged in the preheating and warming chamber, the pyrolysis reaction chamber and the cooling and warming chamber, the atmosphere of each cavity can be actively replaced, an oxygen-free or oxygen-poor environment can be rapidly established and maintained, combustion and side reactions can be inhibited, and the pyrolysis safety can be improved, and meanwhile, the pyrolysis gas can be conveniently directed and discharged and collected.

[0014] Optionally, the cooling medium is air, the cooling and heat exchange member has a cooling air inlet and a heat exchange air outlet, and the heat exchange air outlet of the cooling and heat exchange member is in communication with the outer cavity of the pyrolysis reaction chamber.

[0015] By adopting the technical scheme, when the cooling medium is air, the heat-exchanged air can be introduced into the outer cavity of the pyrolysis reaction chamber, the residual heat of the cooling section can be recovered, the originally dissipated cooling residual heat can be reused for heating, the comprehensive thermal efficiency of the system is greatly improved, and the external energy consumption and the long-term operation cost are significantly reduced.

[0016] Optionally, the displacement gas sealing chamber is provided with sealing switch gates and driving members for driving the sealing switch gates to open in sequence in the conveying direction of the conveying mechanism, the displacement gas sealing chamber has a plurality of sealing gate chambers after being divided by the sealing switch gates, and the sealing gate chambers are provided with inert gas inlets and displacement gas outlets correspondingly.

[0017] By adopting the technical scheme, the displacement gas sealing chamber is divided into a plurality of sealing gate chambers by the sealing switch gates, and the sealing switch gates are controlled to open in sequence in front and back, so as to form an airlock channel, ensure that there is always at least one closed gate physically separating the internal and external atmospheres during the continuous entry and exit of the material, effectively block the air from entering with the organic solid waste material or the internal gas from leaking, maintain the stability of the atmosphere of the whole pyrolysis reactor, and improve the safety.

[0018] Optionally, at least three sealing switch gates are arranged at the displacement gas sealing chamber.

[0019] By adopting the above technical solution, the setting of at least three sealing conversion gates in the gas replacement sealing chamber can form more levels of sealing chambers, further increasing the gas replacement and isolation paths, and significantly reducing the risk of air intrusion or pyrolysis gas leakage.

[0020] Optionally, the conveying mechanism includes a moving bed assembly for placing organic solid waste materials and a conveying component for driving the moving bed assembly to move. The conveying component passes through the pyrolysis mechanism and extends to both sides of the pyrolysis mechanism. The moving bed assembly includes at least one moving bed, which is arranged side by side or stacked on the conveying component. The side wall of the moving bed is provided with an exhaust port for pyrolysis gas to be discharged.

[0021] By adopting the above technical solution, the specific structure of the conveying mechanism is disclosed. It employs a moving bed assembly that can be arranged side-by-side or stacked to carry the material, and exhaust vents are opened on the sidewalls of the bed. This allows the pyrolysis gas generated from the pyrolysis of organic solid waste to escape promptly through the exhaust vents on the sidewalls of the moving bed, reducing heat transfer resistance and the probability of secondary reactions caused by gas accumulation in the material layer, thereby improving the pyrolysis rate and gas production quality. The side-by-side or stacked arrangement allows for flexible adjustment of the processing capacity to adapt to different scale requirements.

[0022] Optionally, the mobile bed assembly includes multiple mobile beds arranged in a stacked manner, and a limiting structure is provided between the mobile beds and the adjacent mobile beds above and below to prevent the mobile beds from falling off.

[0023] By adopting the above technical solution and setting a limiting structure between the stacked moving beds, the relative slippage and tilt of the moving bed group during conveying, climbing or equipment vibration can be effectively constrained, reducing the occurrence of interlayer shedding and material spillage accidents, ensuring the stability and safety of the conveying mechanism during long-term operation, and thus ensuring stable material heat transfer and pyrolysis process conditions.

[0024] Optionally, the conveying mechanism is provided with a feeding platform at the front end of the preheating chamber for feeding organic solid waste materials, the bottom surface of the feeding platform being higher than the top surface of the conveying mechanism, and a discharge platform for collecting solid residues is provided at the rear end of the cooling chamber.

[0025] By adopting the above technical solution, with the bottom surface of the loading platform higher than the top surface of the conveying mechanism, the material can be naturally slid down onto the moving bed by gravity using the height difference. This simplifies the mechanical devices at the loading end, making operation simple and reducing the failure rate. Simultaneously, a discharge platform is set at the rear end of the cooling chamber, clearly defining the inlet and outlet positions, forming a complete closed-loop process flow, facilitating smooth connection with upstream and downstream equipment, and achieving full-process automation.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. A pyrolysis reactor for organic solid waste, wherein during the operation of the pyrolysis reactor for organic solid waste, a three-stage continuous inner and outer cavity structure of "preheating-pyrolysis-cooling" is constructed, and the high-temperature flue gas in the outer cavity of the pyrolysis chamber is used to preheat the organic solid waste material in the outer cavity of the preheating chamber, thereby realizing the cascade utilization of energy, effectively recovering waste heat, reducing energy consumption, and improving pyrolysis efficiency. The gas-sealed chambers at both ends of the pyrolysis mechanism can effectively isolate the outside air, so as to ensure that the pyrolysis reactor for organic solid waste is heated, reacted and cooled in an oxygen-free or oxygen-deficient atmosphere, which is conducive to achieving the best pyrolysis reaction effect of organic solid waste material, while reducing the diffusion of pyrolysis gas into the environment. The cooling heat exchanger in the cooling chamber can quickly terminate the secondary reaction, which is conducive to obtaining high-quality solid residue. 2. By arranging multiple heating elements at intervals along the length of the pyrolysis reaction chamber, and with the heating elements on both sides arranged symmetrically or staggered, the temperature field inside the pyrolysis reaction chamber becomes more uniform, reducing local overheating or cold zones. This ensures that the organic solid waste material is heated evenly, resulting in a more complete and stable pyrolysis reaction, which is beneficial for improving yield and product uniformity. 3. When the cooling medium is air, the air after heat exchange can be introduced into the outer cavity of the pyrolysis reaction chamber to recover the waste heat of the cooling section and reuse the originally lost waste heat for heating, which greatly improves the overall thermal efficiency of the system. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the pyrolysis reactor for organic solid waste in Embodiment 1 of this application.

[0028] Figure 2 This is a schematic diagram of the structure of the moving bed in Embodiment 1 of this application.

[0029] Figure 3 This is a schematic diagram of the structure of the replacement gas sealing chamber and the pyrolysis mechanism in Embodiment 1 of this application.

[0030] Figure 4 This is a schematic diagram of the pyrolysis reaction chamber in Embodiment 1 of this application.

[0031] Figure 5 This is a schematic diagram of the structure of the heating element and the moving bed in Embodiment 1 of this application.

[0032] Figure 6 This is a schematic diagram of the structure of the movable bed assembly in Embodiment 2 of this application.

[0033] Figure 7 This is a schematic diagram of the structure of the movable bed assembly in Embodiment 3 of this application.

[0034] Figure 8 This is a schematic diagram of the structure of the movable bed assembly in Embodiment 4 of this application.

[0035] Figure 9 This is a schematic diagram of the structure of the heating element and the moving bed in Embodiment 5 of this application.

[0036] Explanation of reference numerals in the attached drawings: 1. Conveying mechanism; 11. Moving bed; 111. Exhaust vent; 112. Limiting flange; 113. Limiting slot; 114. Limiting block; 115. Support column; 12. Conveying assembly; 2. Pyrolysis mechanism; 21. Preheating chamber; 211. Second heating assembly; 22. Pyrolysis reaction chamber; 221. Heating element; 23. Cooling chamber; 231. Cooling heat exchanger; 24. Air inlet; 25. Exhaust outlet; 26. Exhaust port; 3. Replacement gas sealing chamber; 31. Sealing conversion gate; 32. Sealing gate chamber; 4. Loading platform; 5. Unloading platform. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0038] This application discloses a pyrolysis reactor for organic solid waste.

[0039] Example 1

[0040] Reference Figure 1 The pyrolysis reactor for organic solid waste includes a conveying mechanism 1 for conveying organic solid waste material, a pyrolysis mechanism 2 for pyrolysis treatment of organic solid waste material, and a displacement gas sealing chamber 3 arranged on both sides of the extension direction of the pyrolysis mechanism 2 and connected to the pyrolysis mechanism 2.

[0041] Reference Figure 1 and Figure 2 The conveying mechanism 1 includes a moving bed assembly for placing organic solid waste materials and a conveying component 12 for driving the moving bed assembly. The conveying component 12 passes through the pyrolysis mechanism 2 and extends to both sides of the pyrolysis mechanism 2. The conveying component 12 can adopt various transmission and conveying forms such as roller conveyor, pusher conveyor, mesh belt conveyor, and chain conveyor. Furthermore, the transmission speed of the conveying component 12 can be programmed according to the pyrolysis reaction characteristics of different organic solid waste materials. The moving bed assembly includes at least one moving bed 11, which is an open, flat container structure with a receiving cavity for placing the organic solid waste materials. When conveying organic solid waste materials, one or more moving beds 11 can be arranged side-by-side or stacked to form a moving bed assembly. To facilitate the discharge of pyrolysis gas, the side wall of the moving bed 11 has an exhaust port 111 for pyrolysis gas discharge. In this embodiment, the conveying component 12 has a roller conveyor structure, and the moving beds 11 are arranged side-by-side on the top surface of the conveying component 12.

[0042] Reference Figure 1The pyrolysis mechanism 2, along the conveying direction of the conveying mechanism 1, includes a preheating chamber 21, a pyrolysis reaction chamber 22, and a cooling chamber 23. The preheating chamber 21 and the pyrolysis reaction chamber 22 are dual-cavity structures, each with an outer cavity and an inner cavity, while the cooling chamber 23 is a single-cavity structure. To ensure the normal passage of the conveying mechanism 1, the inner cavities of the preheating chamber 21, the pyrolysis reaction chamber 22, and the cooling chamber 23 are interconnected. Furthermore, the cavities of the preheating chamber 21 and the pyrolysis reaction chamber 22 are both made of high-temperature and corrosion-resistant materials. The outer cavities of the preheating chamber 21 and the pyrolysis reaction chamber 22 are both insulated to reduce heat loss. The cooling chamber 23 is a composite structure consisting of a steel plate lined with non-metallic insulating material or a steel plate with external insulating material, anti-scalding material, or anti-scalding facilities.

[0043] Reference Figure 3 Each of the preheating chamber 21, the pyrolysis reaction chamber 22, the cooling chamber 23, and the replacement gas sealing chamber 3 is equipped with its own inlet 24 for inert gas input and outlet 25 for replacement gas discharge. The inert gas replaces the air or pyrolysis gas in the chamber, and the pressure in the chamber is maintained during operation to prevent negative pressure. This ensures that the pyrolysis reactor for organic solid waste is heated, reacted, and cooled in an oxygen-free or oxygen-deficient atmosphere, which is conducive to achieving the best pyrolysis reaction effect of organic solid waste materials and at the same time reduces the diffusion of pyrolysis gas into the environment.

[0044] Reference Figure 4 and Figure 5 A first heating assembly is provided in the outer cavity of the pyrolysis reaction chamber 22. The first heating assembly consists of multiple heating elements 221 arranged at intervals along the length of the pyrolysis reaction chamber 22 and located on both sides of the bottom surface of the pyrolysis reaction chamber 22. The heating elements 221 arranged opposite each other on both sides of the pyrolysis reaction chamber 22 are arranged symmetrically or staggered along the central axis of the cross-section of the pyrolysis reaction chamber 22. The heating elements 221 are fuel burners, which supply heat to the inner cavity of the pyrolysis reaction chamber 22 from the outside through two methods: flame-induced radiative heat transfer and high-temperature flue gas convective heat transfer, thereby heating the organic solid waste material in the moving bed 11 and causing a pyrolysis reaction. In this embodiment, the heating elements 221 arranged opposite each other on both sides of the pyrolysis reaction chamber 22 are staggered along the central axis of the cross-section of the pyrolysis reaction chamber 22.

[0045] Reference Figure 3Simultaneously, the outer cavity of the pyrolysis reaction chamber 22 is connected to the outer cavity of the preheating chamber 21, allowing the high-temperature flue gas from the outer cavity of the pyrolysis reaction chamber 22 to flow through the outer cavity of the preheating chamber 21 and heat the inner cavity of the preheating chamber 21 via convection heat transfer, thereby raising the temperature of the organic solid waste material in the moving bed 11 within the preheating chamber 21. Both the preheating chamber 21 and the pyrolysis reaction chamber 22 are equipped with exhaust ports 26, specifically a flue gas exhaust port at the top of the outer cavity of the preheating chamber 21, a heating gas exhaust port at the top of the inner cavity of the preheating chamber 21 along its length, and a pyrolysis oil and gas exhaust port at the top of the inner cavity of the pyrolysis reaction chamber 22 along its length. To further shorten the heating time of the preheating chamber 21, a second heating component 211 is installed at the outer cavity of the preheating chamber 21 to enhance the heating intensity of the inner cavity of the preheating chamber 21, which is beneficial for increasing the preheating temperature of the organic solid waste material in the moving bed 11 within the inner cavity. In this embodiment, the second heating assembly 211 includes a plurality of fuel burners spaced apart in the outer cavity of the preheating chamber 21.

[0046] Reference Figure 3 The cooling chamber 23 is equipped with a cooling heat exchanger 231, and at least one cooling medium, namely water and air, flows through the cooling heat exchanger 231 to provide a cold source for cooling the residue after reaction in the moving bed 11. When the cooling medium is air, the cooling heat exchanger 231 with air flowing through it has a cooling air inlet and a heat exchange air outlet. The heat exchange air outlet of the cooling heat exchanger 231 is connected to the outer cavity of the pyrolysis reaction chamber 22, so that the waste heat recovered from cooling the organic solid waste is directly sent into the pyrolysis reaction chamber 22 in the form of hot air and used as a heating medium, which significantly reduces the external heating energy consumption and improves the system thermal efficiency.

[0047] Reference Figure 1The displacement gas sealing chamber 3 is connected to the adjacent preheating chamber 21 or cooling chamber 23. The displacement gas sealing chamber 3 is provided with sealing conversion gates 31 at intervals along the conveying direction of the conveying mechanism 1, and driving components for alternately opening the sealing conversion gates 31 sequentially along the conveying direction of the conveying mechanism 1. At least three sealing conversion gates 31 are provided in the displacement gas sealing chamber 3. After being divided by the sealing conversion gates 31, the displacement gas sealing chamber 3 has multiple sealing chambers 32. Each sealing chamber 32 has an inert gas inlet and a displacement gas outlet. The atmosphere inside the displacement sealing chamber 32 is purged with externally supplied inert gas to create an oxygen-free or oxygen-deficient atmosphere, thus sealing off and preventing air or a very small amount of air from entering the inner cavity of the preheating chamber 21 or the cooling chamber 23. This ensures that the organic solid waste material undergoes pyrolysis under an oxygen-free or oxygen-deficient atmosphere, which is beneficial for achieving the best pyrolysis reaction effect of the organic solid waste material and reducing the diffusion of pyrolysis gas into the environment. In this embodiment of the application, three sealing conversion gates 31 are provided at intervals along the conveying direction of the conveying mechanism 1 in the displacement gas sealing chamber 3.

[0048] Reference Figure 1 The conveying mechanism 1 is provided with a feeding platform 4 at the front end of the preheating chamber 21 for feeding organic solid waste materials. The bottom surface of the feeding platform 4 is higher than the top surface of the conveying mechanism 1, and the materials can be conveniently loaded into the moving bed 11 by gravity or auxiliary devices. The conveying mechanism 1 is provided with a discharge platform 5 at the rear end of the cooling chamber 23 for collecting solid residues.

[0049] Reference Figures 1 to 5The implementation principle of the pyrolysis reactor for organic solid waste in this application embodiment is as follows: During the operation of the pyrolysis reactor for organic solid waste, the organic solid waste material is first transported to the receiving cavity of the moving bed 11 through the feeding platform 4. The moving bed 11 is driven to move through the displacement gas sealing chamber 3, the preheating chamber 21, the pyrolysis reaction chamber 22, the cooling chamber 23, and the displacement gas sealing chamber 3 in sequence through the conveying component 12. Finally, the solid residue after pyrolysis is transported to the unloading platform 5. When the moving bed 11 moves to the displacement gas sealing chamber 3, the sealing conversion gate 31 is driven by the program control drive component to open alternately back and forth in the direction of movement of the moving bed 11. The sealing gate 32 is made into an oxygen-free or oxygen-deficient atmosphere by purging with inert gas. Then the moving bed 11 enters the preheating chamber 21. Through the setting that the outer cavity of the preheating chamber 21 is connected to the outer cavity of the pyrolysis reaction chamber 22, the high-temperature flue gas generated by the first heating component in the outer cavity of the pyrolysis reaction chamber 22 can be filled. The outer cavity of the preheating chamber 21 is used to preheat the organic solid waste material in the moving bed 11 within the preheating chamber 21. The conveying device drives the moving bed assembly into the pyrolysis reaction chamber 22. The heating element 221 heats the inner cavity of the pyrolysis reaction chamber 22. The organic solid waste material in the moving bed 11 is heated to carry out a pyrolysis reaction, producing pyrolysis oil and gas and solid residue after the reaction. The pyrolysis oil and gas are discharged through the pyrolysis oil and gas outlet, and the solid residue is conveyed to the cooling chamber 23 along with the moving bed 11. It is cooled by heat exchange through the cooling medium. When air is used as a cooling medium, the air after heat exchange can enter the outer cavity of the pyrolysis reaction chamber 22 as combustion air. Finally, the moving bed assembly containing the solid residue is conveyed to the unloading platform 5 again through the displacement gas sealing chamber 3. The moving bed 11 is then returned to the loading platform 4 for later use, thus completing the pyrolysis treatment of the organic solid waste material and making full use of the heat, effectively ensuring the pyrolysis efficiency of the organic solid waste material.

[0050] Example 2

[0051] The pyrolysis reactor for organic solid waste in this embodiment is identical to that in Example 1, except that the moving bed 11 is different from that in Example 1.

[0052] Reference Figure 6 In this embodiment, the mobile bed assembly includes multiple mobile beds 11 arranged in a stacked manner. To ensure the stability of the cooperation between adjacent mobile beds 11, a limiting structure is provided between the mobile beds 11 and adjacent mobile beds 11. The limiting structure is a limiting flange 112 provided on the top surface of the mobile bed 11, and the limiting flange 112 has a support portion for supporting the bottom of the mobile bed 11.

[0053] Example 3

[0054] The pyrolysis reactor for organic solid waste in this embodiment is identical to that in Example 1, except that the moving bed 11 is different from that in Example 1.

[0055] Reference Figure 7 In this embodiment, the movable bed assembly includes a first movable bed and a second movable bed stacked on top of the first movable bed. The limiting structure includes a limiting slot 113 formed on the top surface of the first movable bed and a limiting insert 114 disposed on the bottom of the second movable bed and cooperating with the limiting slot 113.

[0056] Example 4

[0057] The pyrolysis reactor for organic solid waste in this embodiment is identical to that in Example 1, except that the moving bed 11 is different from that in Example 1.

[0058] Reference Figure 8 In this embodiment, the movable bed assembly includes a first movable bed and a second movable bed stacked on top of the first movable bed. The limiting structure includes a support column 115 disposed on the bottom surface of the second movable bed and extending toward the first movable bed, wherein the top surface of the first movable bed abuts against the bottom surface of the second movable bed and the bottom of the support column 115 abuts against the bottom surface of the inner cavity of the first movable bed.

[0059] Example 5

[0060] The pyrolysis reactor for organic solid waste in this embodiment is identical to that in Example 1, except for the arrangement of the first heating component.

[0061] Reference Figure 9 In this embodiment, the first heating component consists of a plurality of heating elements 221 arranged at intervals along the length of the pyrolysis reaction chamber 22 and located on both sides of the pyrolysis reaction chamber 22. Furthermore, the heating elements 221 arranged on the two sides of the pyrolysis reaction chamber 22 are arranged symmetrically or staggered along the central axis of the cross section of the pyrolysis reaction chamber 22.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pyrolysis reactor for organic solid waste, characterized in that, The system includes a conveying mechanism (1) for conveying organic solid waste, a pyrolysis mechanism (2) for pyrolyzing the organic solid waste, and displacement gas sealed chambers (3) arranged on both sides of the pyrolysis mechanism (2) and communicating with the pyrolysis mechanism (2). The pyrolysis mechanism (2) includes a preheating chamber (21), a pyrolysis reaction chamber (22), and a cooling chamber (23) in sequence along the conveying direction of the conveying mechanism (1). The preheating chamber (21) and the pyrolysis reaction chamber (22) have inner cavities and outer cavities. The inner cavity of the preheating chamber (21) and the pyrolysis reaction chamber (22) are... The inner cavity of the pyrolysis reaction chamber (22) and the cavity of the cooling and cooling chamber (23) are interconnected to allow the conveying mechanism (1) to pass through. The outer cavity of the pyrolysis reaction chamber (22) is provided with a first heating component, and the outer cavity of the preheating chamber (21) is connected to the outer cavity of the pyrolysis reaction chamber (22). The preheating chamber (21) and the pyrolysis reaction chamber (22) are provided with exhaust ports (26). The cooling and cooling chamber (23) is provided with a cooling heat exchanger (231), and a cooling medium flows through the cooling heat exchanger (231). The cooling medium is at least one of water and air.

2. The pyrolysis reactor for organic solid waste according to claim 1, characterized in that, The first heating assembly includes a plurality of heating elements (221) spaced apart along the length of the pyrolysis reaction chamber (22). The heating elements (221) arranged opposite to each other on both sides of the pyrolysis reaction chamber (22) are arranged symmetrically in pairs or staggered in pairs along the central axis of the cross section of the pyrolysis reaction chamber (22).

3. The pyrolysis reactor for organic solid waste according to claim 1, characterized in that, A second heating component (211) is provided in the outer cavity of the preheating chamber (21).

4. The pyrolysis reactor for organic solid waste according to claim 1, characterized in that, The inner cavity of the preheating chamber (21), the inner cavity of the pyrolysis reaction chamber (22), and the cooling chamber (23) are all provided with an air inlet (24) for the input of inert gas and an outlet (25) for the discharge of replacement gas.

5. The pyrolysis reactor for organic solid waste according to claim 1, characterized in that, The cooling medium is air, and the cooling heat exchanger (231) has a cooling air inlet and a heat exchange air outlet. The heat exchange air outlet of the cooling heat exchanger (231) is connected to the outer cavity of the pyrolysis reaction chamber (22).

6. The pyrolysis reactor for organic solid waste according to claim 1, characterized in that, The displacement gas sealing chamber (3) is provided with sealing conversion gates (31) and driving members for driving the sealing conversion gates (31) to open alternately back and forth along the conveying direction of the conveying mechanism (1) at intervals along the conveying direction of the conveying mechanism (1). The displacement gas sealing chamber (3) has multiple sealing chambers (32) after being separated by the sealing conversion gates (31). An inert gas inlet and a displacement gas outlet are provided at the sealing chambers (32).

7. The pyrolysis reactor for organic solid waste according to claim 6, characterized in that, At least three sealing conversion gates (31) are provided at the displacement gas sealing chamber (3).

8. The pyrolysis reactor for organic solid waste according to claim 1, characterized in that, The conveying mechanism (1) includes a moving bed assembly for placing organic solid waste materials and a conveying component (12) for driving the moving bed assembly to move. The conveying component (12) passes through the pyrolysis mechanism (2) and extends to both sides of the pyrolysis mechanism (2). The moving bed assembly includes at least one moving bed (11). The moving beds (11) are arranged side by side or stacked on the conveying component (12). The side wall of the moving bed (11) is provided with an exhaust port (111) for pyrolysis gas to be discharged.

9. The pyrolysis reactor for organic solid waste according to claim 8, characterized in that, The mobile bed assembly includes multiple mobile beds (11) arranged in a stacked manner. A limiting structure is provided between each mobile bed (11) and the adjacent mobile beds (11) above and below to prevent the mobile bed (11) from falling off.

10. A pyrolysis reactor for organic solid waste according to claim 1, characterized in that, The conveying mechanism (1) is provided with a feeding platform (4) for feeding organic solid waste at the front end of the preheating chamber (21). The bottom surface of the feeding platform (4) is higher than the top surface of the conveying mechanism (1). The conveying mechanism (1) is provided with a unloading platform (5) for collecting solid residue at the rear end of the cooling chamber (23).

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