Organic waste plasma pyrolysis and cracking integrated device

Abstract

The utility model provides an organic waste plasma pyrolysis and cracking integrated device, relates to the technical field of garbage resource utilization, the organic waste plasma pyrolysis and cracking integrated device comprises a box shell, a plasma torch, a pyrolysis mechanism and a feed pipe, a cracking chamber is formed in the box shell, a hydrogen outlet is formed in the box shell, and the plasma torch is arranged in the cracking chamber. The hydrogen outlet is communicated with the cracking chamber; the plasma torch is arranged on the box shell, and the output end of the plasma torch is located in the cracking chamber; the pyrolysis mechanism comprises a pyrolysis chamber arranged in the cracking chamber and an exhaust pipe, one end of the exhaust pipe is communicated with the pyrolysis chamber, the other end of the exhaust pipe protrudes out of the box shell, a sealing plug is connected to the exhaust pipe, the exhaust pipe is further communicated with a gas guide pipe, and the other end of the gas guide pipe is communicated to the plasma torch; one end of the feeding pipe is communicated with the pyrolysis chamber, and the other end is connected with a feeding furnace door. The pyrolysis chamber is arranged in the cracking chamber, the high-temperature environment in the cracking chamber is fully utilized, and the high temperature in the cracking chamber can directly act on the pyrolysis chamber, so that the pyrolysis process is more efficient, the heat loss is reduced, and the energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of waste resource utilization devices, and in particular to an integrated device for plasma pyrolysis and pyrolysis of organic waste. Background Technology

[0002] With the continuous improvement of people's living standards across the country, the amount of various wastes generated has also increased dramatically, placing a huge burden on the environment. There are many waste treatment methods, such as landfill, composting, and incineration, but waste pyrolysis has received widespread attention due to its advantages of high energy recovery rate and low pollution. Organic waste pyrolysis typically refers to the process in which biomass is heated to a high temperature in an anaerobic or low-oxygen environment, causing molecular decomposition to produce coke, condensable liquids, and gaseous products. It is an important form of biomass energy utilization. The gases generated during operation contain large amounts of methane, carbon monoxide, and hydrogen, which can be used as industrial fuel, offering good economic benefits.

[0003] For example, patent CN103074093B discloses an integrated process and system for direct drying and pyrolysis of lignite. In this system, the pyrolysis gas is not diluted by external gases, and all the generated fuel gas is ultimately supplied externally. The low-pressure steam produced by pyrolysis is used for steam catalytic reforming of the lignite and pyrolysis gas, resulting in high steam utilization. However, during the preparation process, the high-temperature products generated in the pyrolysis furnace may lose some heat during transfer to the pyrolysis furnace, reducing energy utilization efficiency and increasing the energy input required to heat the pyrolysis furnace. Utility Model Content

[0004] In view of this, this utility model proposes an integrated plasma pyrolysis and cracking device for organic waste, which can solve the problem of heat loss during the transfer of high-temperature products generated by the pyrolysis furnace.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides an integrated plasma pyrolysis and pyrolysis device for organic waste, comprising:

[0007] The casing has a pyrolysis chamber inside, and a hydrogen outlet is provided on the casing, which is connected to the pyrolysis chamber.

[0008] A plasma torch is mounted on the housing, with its output end located within the pyrolysis chamber.

[0009] The pyrolysis mechanism includes a pyrolysis chamber disposed within the pyrolysis chamber and an exhaust pipe. One end of the exhaust pipe is connected to the pyrolysis chamber, and the other end of the exhaust pipe protrudes from the housing and is fitted with a plug. A gas guide pipe is also connected to the exhaust pipe, and the other end of the gas guide pipe is connected to the output end of the plasma torch.

[0010] The feed pipe has one end connected to the top of the pyrolysis chamber and the other end passing through the shell and connected to the feed furnace door.

[0011] Based on the above technical solutions, preferably, the housing includes a first housing and a second housing arranged side by side, the interiors of the first housing and the second housing are connected to form the pyrolysis chamber, the height of the top of the first housing is less than the height of the top of the second housing, the hydrogen outlet and the feed pipe are both connected to the top of the first housing, and the exhaust pipe and the plasma torch are both connected to the top of the second housing.

[0012] More preferably, the feed pipe includes a first feed pipe and a second feed pipe connected to each other, the first feed pipe extends horizontally, the second feed pipe extends vertically, the end of the second feed pipe away from the first feed pipe is connected to the top of the pyrolysis chamber, and the feed furnace door is located at the end of the first feed pipe away from the second feed pipe.

[0013] More preferably, a feed temperature sensor is provided on the first feed tube, and the detection end of the feed temperature detector is located inside the first feed tube.

[0014] Based on the above technical solutions, preferably, a pyrolysis furnace tube is provided on the side of the first box body, one end of the pyrolysis furnace tube passes through the first box body and communicates with the pyrolysis chamber, and the other end of the pyrolysis furnace tube is provided with a pyrolysis furnace door.

[0015] More preferably, the bottom of the pyrolysis chamber is connected to a settling chamber, and a settling furnace door connected to the settling chamber is opened on the side of the first box.

[0016] Based on the above technical solutions, preferably, the inner wall of the housing is provided with a heat insulation component.

[0017] Based on the above technical solutions, preferably, the casing is provided with a first detection element for detecting the temperature inside the pyrolysis chamber.

[0018] Based on the above technical solutions, preferably, the housing is provided with a second detection element for detecting the output end of the plasma torch.

[0019] Based on the above technical solution, preferably, a third detection element is provided at the bottom of the first box, and a fourth detection element is provided at the bottom of the second box. The third detection element and the fourth detection element are arranged at intervals, and both the third detection element and the fourth detection element are used to detect the temperature in the pyrolysis chamber.

[0020] The integrated plasma pyrolysis and pyrolysis device for organic waste of this invention has the following advantages over the prior art:

[0021] (1) Materials are added to the pyrolysis chamber through the feed furnace door. The materials are pyrolyzed in the pyrolysis chamber, and the generated pyrolysis gas is connected to the output end of the plasma torch through the exhaust pipe. The high-temperature plasma generated by the plasma torch is used for cracking. The hydrogen generated after cracking is discharged through the hydrogen outlet, which is convenient for subsequent collection and utilization. By setting the pyrolysis chamber in the cracking chamber, the high temperature in the cracking chamber can directly act on the pyrolysis chamber, making the pyrolysis process more efficient, reducing heat loss, improving the thermal efficiency of the entire system, reducing energy consumption, and solving the problem of heat loss during the transfer of high-temperature products generated by the pyrolysis furnace.

[0022] (2) The settling chamber is used to collect solid residues generated during the pyrolysis process, which facilitates subsequent cleaning and treatment. The settling chamber can be easily opened or closed through the settling furnace door to achieve regular cleaning of residues and ensure the normal operation of the pyrolysis furnace. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the integrated plasma pyrolysis and pyrolysis device for organic waste of this utility model.

[0025] Figure 2 for Figure 1 The main view;

[0026] Figure 3 for Figure 1 Side view;

[0027] Figure 4 for Figure 3 A cross-sectional view along the AA direction.

[0028] Figure label:

[0029] 1. Shell; 101. First chamber; 102. Second chamber; 2. Cracking chamber; 3. Hydrogen outlet; 4. Plasma torch; 5. Pyrolysis mechanism; 51. Pyrolysis chamber; 52. Exhaust pipe; 53. Gas guide pipe; 6. Plug; 7. Feed pipe; 71. First feed pipe; 72. Second feed pipe; 8. Feed furnace door; 9. Feed temperature sensor; 10. Pyrolysis furnace tube; 11. Pyrolysis furnace door; 12. Settling chamber; 13. Settling furnace door; 14. Insulation component; 15. First detection component; 16. Second detection component; 17. Third detection component; 18. Fourth detection component. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0031] Figures 1 to 4 As shown, this utility model provides an integrated plasma pyrolysis and pyrolysis device for organic waste. The integrated plasma pyrolysis and pyrolysis device for organic waste includes a shell 1, a plasma torch 4, a pyrolysis mechanism 5, and a feed pipe 7. A pyrolysis chamber 2 is formed inside the shell 1, and a hydrogen outlet 3 is provided on the shell 1, which is connected to the pyrolysis chamber 2. The plasma torch 4 is installed on the shell 1, and its output end is located inside the pyrolysis chamber 2. The pyrolysis mechanism 5 includes a pyrolysis chamber 51 installed in the pyrolysis chamber 2 and an exhaust pipe 52. One end of the exhaust pipe 52 is connected to the pyrolysis chamber 51, and the other end of the exhaust pipe 52 protrudes from the shell 1 and is connected to a plug 6. A gas guide pipe 53 is also connected to the exhaust pipe 52, and the other end of the gas guide pipe 53 is connected to the output end of the plasma torch 4. One end of the feed pipe 7 is connected to the top of the pyrolysis chamber 51, and the other end passes through the shell 1 and is connected to a feed furnace door 8.

[0032] The feed door 8 is used to add materials into the pyrolysis chamber 51, and the materials enter the pyrolysis chamber 51 through the feed pipe 7, providing raw materials for the pyrolysis reaction. The materials undergo pyrolysis in the pyrolysis chamber 51, and the pyrolysis gas after pyrolysis is connected to the output end of the plasma torch 4 through the exhaust pipe 52. The pyrolysis chamber 2 is used to contain the materials and equipment required for the pyrolysis reaction. The high-temperature plasma generated by the plasma torch 4 is used for pyrolysis to produce pyrolysis gas. The hydrogen produced after pyrolysis is discharged through the hydrogen outlet 3 for subsequent collection and utilization. The tail gas generated by pyrolysis can be discharged through the exhaust pipe 52 by opening the plug 6. In addition, by setting the pyrolysis chamber 51 inside the pyrolysis chamber 2, the high-temperature environment inside the pyrolysis chamber 2 can be fully utilized. The high temperature in the pyrolysis chamber 2 can directly act on the pyrolysis chamber 51, making the pyrolysis process more efficient, reducing heat loss, improving the thermal efficiency of the entire system, reducing energy consumption, and solving the problem of heat loss during the transfer of high-temperature products generated by the pyrolysis furnace.

[0033] The plug 6 is detachably mounted on the exhaust pipe 52. The plug 6 can be inserted into or threaded onto the exhaust pipe 52. During operation of the integrated plasma pyrolysis and cracking device for organic waste, the plug 6 is connected to the exhaust pipe 52 to seal it, ensuring a stable flow of pyrolysis gas from the pyrolysis chamber 51 into the cracking chamber 2, and discharging it at the point aligned with the output end of the plasma torch 4. During cleaning of the integrated plasma pyrolysis and cracking device for organic waste, the plug 6 is opened to open the exhaust pipe 52 for blowing air to clear any blockages.

[0034] Figures 1 to 4 As shown, in some embodiments, the housing 1 includes a first housing 101 and a second housing 102 arranged side by side. The interiors of the first housing 101 and the second housing 102 are connected to form the pyrolysis chamber 2. The height of the top of the first housing 101 is less than the height of the top of the second housing 102. The hydrogen outlet 3 and the feed pipe 7 are both connected to the top of the first housing 101, and the exhaust pipe 52 and the plasma torch 4 are both connected to the top of the second housing 102. By setting the first housing 101 and the second housing 102 at different heights, the installation positions of each component are more reasonable, facilitating operation and maintenance. It also benefits the airflow distribution and heat transfer inside the pyrolysis furnace and reduces costs. Optionally, both the first housing 101 and the second housing 102 are rectangular parallelepiped structures.

[0035] In some embodiments, the feed pipe 7 includes a first feed pipe 71 and a second feed pipe 72 connected to each other. The first feed pipe 71 extends horizontally, and the second feed pipe 72 extends vertically. The end of the second feed pipe 72 away from the first feed pipe 71 is connected to the top of the pyrolysis chamber 51. The feed furnace door 8 is located at the end of the first feed pipe 71 away from the second feed pipe 72. The segmented arrangement of the feed pipe 7 makes its structure more flexible and facilitates the addition and conveying of materials.

[0036] Optionally, a feed temperature sensor 9 is provided on the first feed pipe 71, and the detection end of the feed temperature detector is located inside the first feed pipe 71. The feed temperature detector can monitor the feed temperature in real time, ensuring that the material reaches a suitable temperature range before entering the pyrolysis chamber 51, thereby improving the efficiency and stability of the pyrolysis reaction.

[0037] In some embodiments, a pyrolysis furnace tube 10 is provided on the side of the first housing 101. One end of the pyrolysis furnace tube 10 passes through the first housing 101 and communicates with the pyrolysis chamber 51, and the other end of the pyrolysis furnace tube 10 is provided with a pyrolysis furnace door 11. The pyrolysis furnace tube 10 provides a discharge channel for the pyrolysis chamber 51, and the opening and closing of the pyrolysis furnace tube 10 can be easily controlled through the pyrolysis furnace door 11, facilitating the cleaning of slag remaining in the pyrolysis chamber 51 after pyrolysis.

[0038] Optionally, the pyrolysis furnace tube 10 is arranged side by side with the pyrolysis chamber 51 or the pyrolysis furnace tube 10 is connected to the bottom of the pyrolysis chamber 51, thereby ensuring that the slag at the bottom of the pyrolysis chamber 51 can be cleaned through the pyrolysis furnace tube 10, ensuring the convenience of operation.

[0039] Figures 1 to 4 As shown, in some embodiments, the bottom of the pyrolysis chamber 2 is connected to a settling chamber 12, and a settling furnace door 13 connected to the settling chamber 12 is provided on the side of the first housing 101. The settling chamber 12 is designed to collect solid residues generated during the pyrolysis process, facilitating subsequent cleaning and treatment. The settling chamber 12 can be easily opened or closed through the settling furnace door 13, enabling regular cleaning of residues and ensuring the normal operation of the pyrolysis furnace.

[0040] In some embodiments, the inner wall of the housing 1 is provided with a heat insulation member 14. The heat insulation member 14 can effectively reduce the heat transfer from the inner wall of the housing 1 to the outside, improve the thermal efficiency of the pyrolysis furnace, reduce energy consumption, and at the same time help protect the structure of the housing 1 and extend its service life.

[0041] The insulation component 14 can be made of ceramic fiber, which has excellent thermal insulation performance and high temperature resistance, enabling it to operate stably for extended periods in high-temperature environments. The lightweight nature of ceramic fiber also ensures that the insulation layer does not place an excessive burden on the structure of the casing 1. Alternatively, the insulation component 14 can be made of rock wool or glass wool, which are low-cost and offer good thermal insulation performance. For applications requiring even higher thermal insulation performance, aerogel can be used, as its extremely low thermal conductivity provides superior insulation. In applications requiring fireproofing and thermal insulation, the insulation component 14 can also be made of materials such as vermiculite or perlite. Of course, the insulation component 14 can be an integral structure or a modular structure. In this embodiment, the insulation component 14 adopts a modular structure, meaning that multiple insulation components 14 are provided, and these multiple insulation components 14 are assembled and installed inside the casing 1 for thermal insulation or fireproofing, etc.

[0042] In some embodiments, the housing 1 is provided with a first detection element 15 for detecting the temperature inside the pyrolysis chamber 51. The first detection element 15 can monitor the temperature change inside the pyrolysis chamber 51 in real time, providing accurate temperature data for the control of the cracking reaction, ensuring that the cracking process is carried out within a suitable temperature range, thereby improving the efficiency and quality of hydrogen production.

[0043] In some embodiments, the housing 1 is provided with a second detection element 16 for detecting the output end of the plasma torch 4. The output status of the plasma torch 4 can be monitored in real time through the second detection element 16, ensuring that the plasma torch 4 works normally and provides a stable high-temperature environment for the pyrolysis reaction. This monitoring function helps to detect abnormalities in the plasma torch 4 in a timely manner and avoids interruption or failure of the pyrolysis reaction due to equipment failure.

[0044] In some embodiments, a third detection element 17 is provided at the bottom of the first housing 101, and a fourth detection element 18 is provided at the bottom of the second housing 102. The third detection element 17 and the fourth detection element 18 are arranged at intervals, and both the third detection element 17 and the fourth detection element 18 are used to detect the temperature inside the pyrolysis chamber 2. By setting multiple detection elements at different positions in the pyrolysis chamber 2, the temperature distribution inside the pyrolysis chamber 2 can be monitored more comprehensively, providing richer data support for the precise control of the pyrolysis process, and further improving the operational stability and safety of the integrated plasma pyrolysis pyrolysis device for organic waste.

[0045] The feed temperature sensor 9, the first detection element 15, the second detection element 16, the third detection element 17, and the fourth detection element 18 are used to detect the temperature at different locations. These elements can have the same structure or different structures. For example, any one of the following can be used: a temperature sensor, a resistance temperature detector (RTD), an infrared thermometer, or a thermometer.

[0046] Figures 1 to 4 As shown above, this application provides an integrated plasma pyrolysis and cracking device for organic waste. This device adds material to the pyrolysis chamber 51 through the feed furnace door 8. The material enters the pyrolysis chamber 51 through the feed pipe 7, providing raw materials for the pyrolysis reaction. The material undergoes pyrolysis within the pyrolysis chamber 51. The pyrolysis gas is then connected to the output end of the plasma torch 4 through the exhaust pipe 52. The cracking chamber 2 contains the materials and equipment required for the cracking reaction. Cracking is performed by the high-temperature plasma generated by the plasma torch 4, producing cracking gas. The hydrogen produced after cracking is discharged through the hydrogen outlet 3 for subsequent collection and utilization. The tail gas generated by pyrolysis can be discharged through the exhaust pipe 52 by opening the plug 6. Furthermore, by placing the pyrolysis chamber 51 inside the cracking chamber 2, the high-temperature environment within the cracking chamber 2 can be fully utilized. The high temperature within the cracking chamber 2 can directly act on the pyrolysis chamber 51, making the pyrolysis process more efficient, reducing heat loss, improving the overall system's thermal efficiency, reducing energy consumption, and solving the problem of heat loss during the transfer of high-temperature products generated by the pyrolysis furnace.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated plasma pyrolysis and pyrolysis device for organic waste, characterized in that, include: The housing (1) has a pyrolysis chamber (2) inside it, and a hydrogen outlet (3) is provided on the housing (1) and the hydrogen outlet (3) is connected to the pyrolysis chamber (2); A plasma torch (4) is mounted on the housing (1), and the output end of the plasma torch (4) is located inside the pyrolysis chamber (2); The pyrolysis mechanism (5) includes a pyrolysis chamber (51) disposed in the pyrolysis chamber (2) and an exhaust pipe (52). One end of the exhaust pipe (52) is connected to the pyrolysis chamber (51), and the other end of the exhaust pipe (52) protrudes from the housing (1) and is connected to a plug (6). A gas guide pipe (53) is also connected to the exhaust pipe (52), and the other end of the gas guide pipe (53) is connected to the output end of the plasma torch (4). The pyrolysis mechanism (5) includes a feed pipe (7), one end of which is connected to the top of the pyrolysis chamber (51), and the other end of which passes through the housing (1) and is connected to a feed furnace door (8).

2. The integrated plasma pyrolysis and pyrolysis device for organic waste as described in claim 1, characterized in that: The housing (1) includes a first housing (101) and a second housing (102) arranged side by side. The interiors of the first housing (101) and the second housing (102) are connected to form the pyrolysis chamber (2). The height of the top of the first housing (101) is less than the height of the top of the second housing (102). The hydrogen outlet (3) and the feed pipe (7) are both connected to the top of the first housing (101). The exhaust pipe (52) and the plasma torch (4) are both connected to the top of the second housing (102).

3. The integrated plasma pyrolysis and pyrolysis device for organic waste as described in claim 2, characterized in that: The feed pipe (7) includes a first feed pipe (71) and a second feed pipe (72) connected to each other. The first feed pipe (71) extends horizontally, and the second feed pipe (72) extends vertically. The end of the second feed pipe (72) away from the first feed pipe (71) is connected to the top of the pyrolysis chamber (51). The feed furnace door (8) is located at the end of the first feed pipe (71) away from the second feed pipe (72).

4. The integrated plasma pyrolysis and pyrolysis device for organic waste as described in claim 3, characterized in that: A feed temperature sensor (9) is provided on the first feed tube (71), and the detection end of the feed temperature detector is located inside the first feed tube (71).

5. The integrated plasma pyrolysis and pyrolysis device for organic waste as described in claim 2, characterized in that: A pyrolysis furnace tube (10) is provided on the side of the first box (101). One end of the pyrolysis furnace tube (10) passes through the first box (101) and communicates with the pyrolysis chamber (51). The other end of the pyrolysis furnace tube (10) is provided with a pyrolysis furnace door (11).

6. The integrated plasma pyrolysis and pyrolysis device for organic waste as described in claim 2, characterized in that: The bottom of the pyrolysis chamber (2) is connected to the settling chamber (12), and the side of the first box (101) is provided with a settling furnace door (13) that is connected to the settling chamber (12).

7. The integrated plasma pyrolysis and pyrolysis device for organic waste as described in claim 1, characterized in that: The inner wall of the housing (1) is provided with a heat insulation component (14).

8. The integrated plasma pyrolysis and pyrolysis device for organic waste as described in claim 1, characterized in that: The housing (1) is provided with a first detection element (15) for detecting the temperature inside the pyrolysis chamber (51).

9. The integrated plasma pyrolysis and pyrolysis device for organic waste as described in claim 1, characterized in that: The housing (1) is provided with a second detection element (16) for detecting the output end of the plasma torch (4).

10. The integrated plasma pyrolysis and pyrolysis device for organic waste as described in claim 2, characterized in that: The bottom of the first housing (101) is provided with a third detection element (17), and the bottom of the second housing (102) is provided with a fourth detection element (18). The third detection element (17) and the fourth detection element (18) are arranged at intervals. Both the third detection element (17) and the fourth detection element (18) are used to detect the temperature inside the pyrolysis chamber (2).

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