Organic waste combustion heat energy driven laneway type oil-rich coal pyrolysis system and method

Abstract

The invention provides an organic waste combustion heat energy driven laneway type oil-rich coal pyrolysis system and method, and belongs to the technical field of oil-rich coal in-situ pyrolysis. The pyrolysis system comprises an oil-rich coal pyrolysis area, an organic waste combustion cavity, a first conveying pipeline, a second conveying pipeline and a pyrolysis oil gas extraction pipe. Heat insulation walls are arranged on the periphery of the oil-rich coal pyrolysis area, an organic waste combustion cavity is formed between the heat insulation walls on the two sides of the oil-rich coal pyrolysis area and the oil-rich coal pyrolysis area, a heat conduction layer is arranged on the side wall of the organic waste combustion cavity, and a combustor is arranged in the organic waste combustion cavity. The first conveying pipeline is connected with the organic waste combustion cavity, the second conveying pipeline is connected with the oil-rich coal pyrolysis area, and the second conveying pipeline is connected with the pyrolysis oil gas extraction pipe. The method solves the problem of high energy consumption caused by the fact that an oil-rich coal in-situ pyrolysis technology generally depends on an external heat source, and the problem of serious heat waste caused by the fact that a large amount of high-temperature heat energy generated in the organic waste incineration treatment process is not effectively utilized generally.

Description

Technical Field

[0001] The present invention belongs to the technical field of in-situ pyrolysis of oil-rich coal, and particularly relates to an organic waste combustion heat energy-driven roadway-type oil-rich coal pyrolysis system and method. Background Art

[0002] As a special coal resource rich in oil, oil-rich coal has extremely rich reserves in China. By large-scale pyrolysis of oil-rich coal and efficient extraction of tar and coal gas therein, not only can the high-value utilization of coal resources be realized, but also the supply tension problem of oil and gas resources in China can be alleviated to a certain extent, thus ensuring national energy security.

[0003] At present, significant progress has been made in coal surface pyrolysis in China. However, coal surface pyrolysis relies on traditional mining processes and requires coal to be mined from underground to the surface before pyrolysis treatment. After going through processes such as mining, washing, crushing, in-furnace heating, and semi-coke cooling, problems such as safety and geological environment damage will inevitably occur.

[0004] In-situ pyrolysis of oil-rich coal, as a cutting-edge technology for underground fluidized coal mining, directly converts underground oil-rich coal into energy products such as coal tar and coal gas through in-situ thermochemical reactions. Through the in-situ resource cascade conversion method, this technology can solve the ecological disturbance and ground pollution problems caused by traditional underground mining methods, and thus reduce the losses in resource development.

[0005] However, the in-situ pyrolysis technology of oil-rich coal usually relies on external heat sources, such as electric heating or high-temperature heat-carrying fluid heating, and has limitations such as high energy consumption and high costs. At the same time, a large amount of high-temperature heat energy generated during the incineration treatment of organic wastes (such as agricultural wastes, municipal solid wastes, and industrial organic wastes, etc.) is usually not effectively utilized, resulting in serious waste of heat. Summary of the Invention

[0006] The purpose of the present invention is to provide an organic waste combustion heat energy-driven roadway-type oil-rich coal pyrolysis system and method, which are used to solve the problems in the prior art that the in-situ pyrolysis technology of oil-rich coal usually relies on external heat sources, resulting in high energy consumption, and a large amount of high-temperature heat energy generated during the incineration treatment of organic wastes is usually not effectively utilized, resulting in serious waste of heat.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions: In the first aspect, the present invention provides an organic waste combustion heat energy-driven roadway-type oil-rich coal pyrolysis system, including an oil-rich coal pyrolysis area, an organic waste combustion chamber, a first conveying pipeline, a second conveying pipeline, and a pyrolysis oil and gas extraction pipe; Heat insulation walls are arranged around the rich oil coal pyrolysis area. Organic waste combustion chambers are formed between the heat insulation walls on both sides of the rich oil coal pyrolysis area and the rich oil coal pyrolysis area. A heat conduction layer is arranged on the side wall of the organic waste combustion chamber, and a burner is arranged inside the organic waste combustion chamber for igniting the fluid organic waste fuel; The first conveying pipeline is connected to the organic waste combustion chamber, the second conveying pipeline is connected to the rich oil coal pyrolysis area, the second conveying pipeline is connected to the pyrolysis oil and gas extraction pipe, and the pyrolysis oil and gas extraction pipe is used for extracting pyrolysis oil and gas.

[0008] A further improvement of the present invention is that the heat conduction layer is a stainless steel heat conduction layer.

[0009] A further improvement of the present invention is that the pyrolysis oil and gas extraction pipe is a stainless steel screen pipe.

[0010] A further improvement of the present invention is that a temperature sensor is further arranged inside the organic waste combustion chamber for monitoring the temperature of the flame in the organic waste combustion chamber.

[0011] A further improvement of the present invention is that it further includes a control system for controlling the ignition of the burner.

[0012] A further improvement of the present invention is that the burner is a gas burner.

[0013] A further improvement of the present invention is that the control system is an MCU controller.

[0014] In a second aspect, the present invention provides a method for driving well - roadway - type rich oil coal pyrolysis by organic waste combustion heat energy, which is characterized in that the well - roadway - type rich oil coal pyrolysis system driven by organic waste combustion heat energy introduced above is used, and it includes the following steps: Ignite the burner inside the organic waste combustion chamber to make the fluid organic waste fuel burn to generate heat; Transfer the heat generated in the organic waste combustion chamber to the rich oil coal pyrolysis area through the heat conduction layer, so that the rich oil coal is heated and pyrolyzed; During the pyrolysis process, extract the pyrolysis oil and gas through the pyrolysis oil and gas extraction pipe. A further improvement of the present invention is that the heat conduction layer is a stainless steel heat conduction layer.

[0015] A further improvement of the present invention is that the pyrolysis oil and gas extraction pipe is a stainless steel screen pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system proposed by the present invention is designed with a rich oil coal pyrolysis zone, an organic waste combustion chamber, a first conveying pipeline, a second conveying pipeline, and a pyrolysis oil and gas extraction pipe. Heat insulation walls are arranged around the rich oil coal pyrolysis zone. An organic waste combustion chamber is formed between the heat insulation walls on both sides of the rich oil coal pyrolysis zone and the rich oil coal pyrolysis zone. A heat conduction layer is arranged on the side wall of the organic waste combustion chamber, and a burner is arranged inside the organic waste combustion chamber. It can be seen that the present invention can burn the fluid organic waste fuel through the burner in the organic waste combustion chamber, utilize the high-temperature heat energy generated by it, conductively heat the rich oil coal seam bilaterally in-situ underground, and then realize the pyrolysis of the rich oil coal, thereby generating high-value coal tar and coal gas, effectively solving the problems that the in-situ pyrolysis technology of rich oil coal in the prior art usually relies on external heat sources, resulting in high energy consumption, and a large amount of high-temperature heat energy generated during the incineration treatment of organic waste is usually not effectively utilized, leading to serious waste of heat.

[0017] Furthermore, the present invention also discloses that the heat conduction layer is a stainless steel heat conduction layer. The stainless steel heat conduction layer is not only high-temperature resistant but also corrosion-resistant, and has a relatively low thermal conductivity and good heat conduction performance.

[0018] Furthermore, the present invention also discloses that the pyrolysis oil and gas extraction pipe is a stainless steel screen pipe. The stainless steel screen pipe is not only high-temperature resistant but also corrosion-resistant, and can make the pyrolysis oil and gas in the rich oil coal pyrolysis zone evenly enter the pyrolysis oil and gas extraction pipe.

[0019] Furthermore, the present invention also discloses that a temperature sensor is arranged inside the organic waste combustion chamber for monitoring the temperature of the flame in the organic waste combustion chamber. It can be seen that the present invention can realize the real-time adjustment of the flame temperature in the organic waste combustion chamber by using the temperature sensor at any time.

[0020] Furthermore, the present invention also discloses that the control system is an MCU controller. The MCU controller not only has a small volume and low power consumption but also has high reliability and stability, can work normally in a harsh environment, and ensure the stable operation of the entire organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system. Description of the Drawings

[0021] Figure 1 is the overall structure diagram of the organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system of the present invention; Figure 2 is the top view of the overall structure of the organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system of the present invention; Figure 3 is the structural schematic diagram of three rich oil coal pyrolysis systems of the present invention connected in parallel; In the figure: 1 is the rich oil coal pyrolysis area; 2 is the roof of the rich oil coal seam; 3 is the floor of the rich oil coal seam; 4 is the heat insulation wall; 5 is the heat conduction layer; 6 is the organic waste combustion chamber; 7 is the fluid organic waste fuel delivery pipeline; 8 is the fluid organic waste fuel; 9 is the fluid organic waste fuel inlet; 10 is the pyrolysis oil and gas extraction pipe; 11 is the pyrolysis oil and gas; 12 is the pyrolysis oil and gas delivery pipeline; 13 is the burner; 14 is the temperature sensor; 15 is the control system; 16 is the combustion tail gas outlet; 17 is the combustion tail gas; 18 is the combustion tail gas delivery pipeline; 19 is the underground roadway; 20 is the pyrolysis oil and gas negative pressure extraction device; 21 is the pyrolysis oil and gas separation device; 22 is the harmful gas treatment device. Detailed implementation manners

[0022] To further understand the content of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments are only for explaining the present invention and not for limiting it.

[0023] The organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system proposed by the present invention is designed with a rich oil coal pyrolysis area, an organic waste combustion chamber, a first delivery pipeline, a second delivery pipeline, and a pyrolysis oil and gas extraction pipe. Heat insulation walls are arranged around the rich oil coal pyrolysis area. An organic waste combustion chamber is formed between the heat insulation walls on both sides of the rich oil coal pyrolysis area and the rich oil coal pyrolysis area. A heat conduction layer is arranged on the side wall of the organic waste combustion chamber, and a burner is arranged inside the organic waste combustion chamber. The first delivery pipeline is connected to the organic waste combustion chamber, the second delivery pipeline is connected to the rich oil coal pyrolysis area, and the second delivery pipeline is connected to the pyrolysis oil and gas extraction pipe. Compared with the prior art, the present invention effectively solves the problems in the prior art that the in-situ pyrolysis technology of rich oil coal usually relies on external heat sources, resulting in high energy consumption, and a large amount of high-temperature heat energy generated during the incineration treatment process of organic waste is usually not effectively utilized, leading to serious waste of heat.

[0024] Embodiment 1: This embodiment discloses an organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system. The overall structure diagram of the organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system in this embodiment is as Figure 1 shown. The top view of the overall structure of the organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system of the present invention is as Figure 2 shown. The technical solution of this embodiment is specifically described as follows: The organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system in this embodiment includes a rich oil coal pyrolysis area 1, an organic waste combustion chamber 6, a first delivery pipeline, a second delivery pipeline, and a pyrolysis oil and gas extraction pipe 10 (the pyrolysis oil and gas extraction pipe 10 in this embodiment is placed crosswise in upper and lower layers).

[0025] Heat insulation walls 4 are arranged around the rich oil coal pyrolysis zone 1. An organic waste combustion chamber 6 is formed between the heat insulation walls 4 on both sides of the rich oil coal pyrolysis zone 1 and the rich oil coal pyrolysis zone 1, which can ensure that the space between the rich oil coal pyrolysis zone 1 and the organic waste combustion chamber 6 is airtight, preventing the pyrolysis oil and gas 11 in the rich oil coal pyrolysis zone 1 from escaping and the fluid organic waste fuel 8 and combustion tail gas 17 in the organic waste combustion chamber 6 from escaping. The outside of the heat insulation wall 4 of the rich oil coal pyrolysis zone in this embodiment is the underground roadway 19.

[0026] A burner 13 is arranged inside the organic waste combustion chamber 6 for igniting the fluid organic waste fuel 8. The burner 13 in this embodiment is a gas burner.

[0027] The organic waste combustion chamber 6 formed between the heat insulation walls 4 on both sides of the rich oil coal pyrolysis zone 1 and the rich oil coal pyrolysis zone 1 is ignited simultaneously (using the burner 13) to burn the fluid organic waste fuel 8, which can generate the high temperature required for rich oil coal pyrolysis. The high temperature on both sides of the rich oil coal pyrolysis zone 1 is transmitted to the rich oil coal seam through the heat conduction layer 5, so that bilateral conduction heating of the rich oil coal seam can be realized.

[0028] A heat conduction layer 5 is arranged on the side wall of the organic waste combustion chamber 6. The heat conduction layer 5 in this embodiment is a stainless steel heat conduction layer. The stainless steel heat conduction layer is not only high-temperature resistant, but also corrosion-resistant, and has a relatively low heat conduction coefficient and good heat conduction performance.

[0029] The first conveying pipeline (the first conveying pipeline in this embodiment is the fluid organic waste fuel conveying pipeline 7) is connected to the organic waste combustion chamber 6, the second conveying pipeline (the second conveying pipeline in this embodiment is the pyrolysis oil and gas conveying pipeline 12) is connected to the rich oil coal pyrolysis zone 1, the second conveying pipeline is connected to the pyrolysis oil and gas extraction pipe 10, and the pyrolysis oil and gas extraction pipe 10 is used for extracting the pyrolysis oil and gas 11.

[0030] The pyrolysis oil and gas extraction pipe 10 in this embodiment is a stainless steel screen pipe. The stainless steel screen pipe is not only high-temperature resistant, but also corrosion-resistant, and can make the pyrolysis oil and gas 11 in the rich oil coal pyrolysis zone 1 enter the pyrolysis oil and gas extraction pipe 10 evenly.

[0031] A temperature sensor 14 is also arranged inside the organic waste combustion chamber 6 for monitoring the temperature of the flame in the organic waste combustion chamber 6 and simultaneously feeding back the monitored temperature of the flame in the organic waste combustion chamber 6 to the control system 15. When the temperature of the flame in the organic waste combustion chamber 6 is low, the flow rate of the fluid organic waste fuel 8 is increased, and when the temperature of the flame in the organic waste combustion chamber 6 is high, the flow rate of the fluid organic waste fuel 8 is decreased to realize real-time adjustment of the temperature of the flame in the organic waste combustion chamber 6.

[0032] The well - roadway type rich - oil coal pyrolysis system driven by the combustion heat energy of organic waste in this embodiment further includes a control system 15, which is used to control the ignition of the burner 13 to make the fluid organic waste fuel 8 burn. The fluid organic waste fuel 8 is prepared by processing organic wastes such as agricultural wastes, municipal domestic wastes, and industrial organic wastes. The control system 15 in this embodiment is an MCU controller. The MCU controller not only has a small volume and low power consumption, but also has high reliability and stability, and can work normally in harsh environments, ensuring the stable operation of the entire well - roadway type rich - oil coal pyrolysis system driven by the combustion heat energy of organic waste.

[0033] In this embodiment, the rich - oil coal pyrolysis area 1 is arranged between the roof 2 of the rich - oil coal seam and the floor 3 of the rich - oil coal seam.

[0034] For the well - roadway type rich - oil coal pyrolysis system driven by the combustion heat energy of organic waste proposed by the present invention, the pyrolysis oil and gas in the rich - oil coal pyrolysis area 1 can also be extracted under negative pressure through the pyrolysis oil and gas negative - pressure extraction device 20, so that the pyrolysis oil and gas 11 flows along the pyrolysis oil and gas extraction pipe 10 into the pyrolysis oil and gas negative - pressure extraction device 20 and finally enters the pyrolysis oil and gas separation device 21. The pyrolysis oil and gas separation device 21 separates and collects the pyrolysis gas and pyrolysis coal tar. The combustion exhaust gas 17 generated by the combustion of the fluid organic waste fuel 8 in the organic waste combustion chamber 6 is discharged through the combustion exhaust gas outlet 16 and is connected to the harmful gas treatment device 22 through the combustion exhaust gas pipeline 18 for purification treatment.

[0035] A pressure gauge, a flow meter and a valve are also arranged at the fluid organic waste fuel inlet 9 in this embodiment.

[0036] In this embodiment, in - situ pyrolysis can also be carried out on multiple juxtaposed (in this embodiment, 3 rich - oil coal pyrolysis systems are connected in parallel, and the number of rich - oil coal pyrolysis systems in parallel can be adjusted according to actual needs) rich - oil coal pyrolysis areas 1. The specific structure is as Figure 3 shown. On the one hand, the present invention can make full use of the high temperature generated by the combustion of the fluid organic waste fuel 8 in the organic waste combustion chamber 6 to conduct bilateral heating on the rich - oil coal seam, thereby increasing the heat utilization efficiency. On the other hand, the present invention can realize in - situ large - scale pyrolysis of rich - oil coal under mine conditions, thereby increasing the output of pyrolysis oil and gas.

[0037] The well - roadway type rich - oil coal pyrolysis system driven by the combustion heat energy of organic waste proposed by the present invention combines the combustion disposal of organic waste with the in - situ pyrolysis of rich - oil coal. It can not only provide a low - cost heat source for the in - situ pyrolysis of rich - oil coal, but also realize the resource utilization of organic waste, having the dual advantages of efficient energy utilization and environmental protection. It also has important significance for promoting the in - situ efficient development of rich - oil coal and the green disposal of organic waste.

[0038] Embodiment 2: This embodiment discloses a method for pyrolyzing oil-rich coal in a wellbore type driven by the thermal energy of organic waste combustion. Using the system for pyrolyzing oil-rich coal in a wellbore type driven by the thermal energy of organic waste combustion introduced above, the method for pyrolyzing oil-rich coal in a wellbore type driven by the thermal energy of organic waste combustion in this embodiment includes the following steps: Ignite the burner 13 inside the organic waste combustion chamber 6 to cause the fluid organic waste fuel 8 to burn and generate heat; Transfer the heat generated in the organic waste combustion chamber 6 to the oil-rich coal pyrolysis zone 1 through the heat conduction layer 5, so that the oil-rich coal is heated and pyrolyzed; During the pyrolysis process, pyrolysis oil and gas 11 are extracted through the pyrolysis oil and gas extraction pipe 10. The system for pyrolyzing oil-rich coal in a wellbore type driven by the thermal energy of organic waste combustion in this embodiment includes an oil-rich coal pyrolysis zone 1, an organic waste combustion chamber 6, a first conveying pipeline, a second conveying pipeline, and a pyrolysis oil and gas extraction pipe 10 (the pyrolysis oil and gas extraction pipe 10 in this embodiment is placed crosswise in upper and lower layers).

[0039] Heat insulation walls 4 are arranged around the oil-rich coal pyrolysis zone 1. The organic waste combustion chamber 6 is formed between the heat insulation walls 4 on both sides of the oil-rich coal pyrolysis zone 1 and the oil-rich coal pyrolysis zone 1, which can ensure that the space between the oil-rich coal pyrolysis zone 1 and the organic waste combustion chamber 6 is airtight, preventing the pyrolysis oil and gas 11 in the oil-rich coal pyrolysis zone 1 from escaping and the fluid organic waste fuel 8 and combustion tail gas 17 in the organic waste combustion chamber 6 from escaping. The outside of the heat insulation wall 4 of the oil-rich coal pyrolysis zone in this embodiment is the underground roadway 19.

[0040] A burner 13 is arranged inside the organic waste combustion chamber 6. The burner 13 in this embodiment is a gas burner. The organic waste combustion chamber 6 formed between the heat insulation walls 4 on both sides of the oil-rich coal pyrolysis zone 1 and the oil-rich coal pyrolysis zone 1 is ignited simultaneously (using the burner 13) to burn the fluid organic waste fuel 8, which can generate the high temperature required for oil-rich coal pyrolysis. The high temperature on both sides of the oil-rich coal pyrolysis zone 1 is transferred to the oil-rich coal seam through the heat conduction layer 5, so that bilateral conduction heating of the oil-rich coal seam can be realized.

[0041] A heat conduction layer 5 is arranged on the side wall of the organic waste combustion chamber 6. The heat conduction layer 5 in this embodiment is a stainless steel heat conduction layer. The stainless steel heat conduction layer is not only high-temperature resistant, but also corrosion-resistant, and has a relatively low thermal conductivity and good heat conduction performance.

[0042] The first conveying pipeline (the first conveying pipeline in this embodiment is the fluid organic waste fuel conveying pipeline 7) is connected to the organic waste combustion chamber 6, the second conveying pipeline (the second conveying pipeline in this embodiment is the pyrolysis oil and gas conveying pipeline 12) is connected to the oil-rich coal pyrolysis zone 1, the second conveying pipeline is connected to the pyrolysis oil and gas extraction pipe 10, and the pyrolysis oil and gas extraction pipe 10 is used to extract pyrolysis oil and gas 11.

[0043] In this embodiment, the pyrolysis oil and gas extraction pipe 10 is a stainless steel screen pipe. The stainless steel screen pipe is not only high-temperature resistant but also corrosion-resistant, enabling the pyrolysis oil and gas 11 in the rich oil coal pyrolysis zone 1 to uniformly enter the pyrolysis oil and gas extraction pipe 10.

[0044] A temperature sensor 14 is also provided inside the organic waste combustion chamber 6 to monitor the temperature of the flame in the organic waste combustion chamber 6 and simultaneously feed back the monitored temperature of the flame in the organic waste combustion chamber 6 to the control system 15. When the temperature of the flame in the organic waste combustion chamber 6 is low, the flow rate of the fluid organic waste fuel 8 is increased; when the temperature of the flame in the organic waste combustion chamber 6 is high, the flow rate of the fluid organic waste fuel 8 is decreased, realizing real-time regulation of the temperature of the flame in the organic waste combustion chamber 6.

[0045] The organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system in this embodiment further includes a control system 15 for controlling the ignition of the burner 13 to burn the fluid organic waste fuel 8. The fluid organic waste fuel 8 is prepared by processing organic wastes such as agricultural wastes, municipal domestic wastes, and industrial organic wastes. The control system 15 in this embodiment is an MCU controller. The MCU controller not only has a small volume and low power consumption but also has high reliability and stability, can work normally in a harsh environment, and ensures the stable operation of the entire organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system.

[0046] In this embodiment, the rich oil coal pyrolysis zone 1 is arranged between the top plate 2 and the bottom plate 3 of the rich oil coal seam.

[0047] The organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system proposed by the present invention can also carry out negative pressure extraction on the pyrolysis oil and gas 11 generated in the rich oil coal pyrolysis zone 1 through the pyrolysis oil and gas negative pressure extraction device 20, enabling the pyrolysis oil and gas 11 to enter the pyrolysis oil and gas negative pressure extraction device 20 along the pyrolysis oil and gas extraction pipe 10 and finally enter the pyrolysis oil and gas separation device 21. The pyrolysis oil and gas separation device 21 separates and collects the pyrolysis gas and pyrolysis coal tar. The combustion exhaust gas 17 generated by the combustion of the fluid organic waste fuel 8 in the organic waste combustion chamber 6 is discharged through the combustion exhaust gas outlet 16 and is connected to the harmful gas treatment device 22 through the combustion exhaust gas conveying pipe 18 for purification treatment.

[0048] A pressure gauge, a flow meter, and a valve are also provided at the fluid organic waste fuel inlet 9 in this embodiment.

[0049] This embodiment can also perform in-situ pyrolysis on multiple juxtaposed (in this embodiment, 3 rich oil coal pyrolysis systems are connected in parallel, and the number of juxtaposed rich oil coal pyrolysis systems can be adjusted according to actual needs) rich oil coal pyrolysis zones 1. The specific structure is as Figure 3As shown in the figure. On the one hand, the present invention can make full use of the high temperature generated by the combustion of the fluid organic waste fuel 8 in the organic waste combustion chamber 6 to conduct bilateral heating on the rich oil coal seam, thereby increasing the utilization efficiency of heat. On the other hand, the present invention can achieve in-situ large-scale pyrolysis of rich oil coal under mine conditions, thereby increasing the output of pyrolysis oil and gas 11.

[0050] The organic waste combustion heat energy-driven roadway-type rich oil coal pyrolysis system proposed by the present invention combines the disposal of organic waste combustion with the in-situ pyrolysis of rich oil coal. It can not only provide a low-cost heat source for the in-situ pyrolysis of rich oil coal, but also realize the resource utilization of organic waste, having the dual advantages of efficient energy utilization and environmental protection, and also having important significance for promoting the in-situ efficient development of rich oil coal and the green disposal of organic waste.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that modifications or equivalent replacements can still be made to the specific embodiments of the present invention. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A well-type oil-rich coal pyrolysis system driven by the heat energy of organic waste combustion, characterized in that: It comprises an oil-rich coal pyrolysis zone (1), an organic waste combustion chamber (6), a first conveying pipeline, a second conveying pipeline and a pyrolysis oil and gas extraction pipe (10); The oil-rich coal pyrolysis zone (1) is surrounded by heat-insulating walls (4), an organic waste combustion chamber (6) is formed between the heat-insulating walls (4) on both sides of the oil-rich coal pyrolysis zone (1) and the oil-rich coal pyrolysis zone (1), a heat-conducting layer (5) is provided on the side wall of the organic waste combustion chamber (6), and a burner (13) is provided inside the organic waste combustion chamber (6) for igniting the fluid organic waste fuel (8); The first delivery pipeline is connected to the organic waste combustion chamber (6), the second delivery pipeline is connected to the oil-rich coal pyrolysis zone (1), and the second delivery pipeline is connected to the pyrolysis oil and gas extraction pipe (10), and the pyrolysis oil and gas extraction pipe (10) is used to extract pyrolysis oil and gas (11).

2. The organic waste combustion heat energy driven well-tunnel type oil-rich coal pyrolysis system according to claim 1 is characterized in that: The heat conducting layer (5) is a stainless steel heat conducting layer.

3. The organic waste combustion heat energy driven well-tunnel type oil-rich coal pyrolysis system according to claim 1 is characterized in that: The pyrolysis oil and gas extraction pipe (10) is a stainless steel screen pipe.

4. The organic waste combustion heat energy driven well-tunnel type oil-rich coal pyrolysis system according to claim 1 is characterized in that: A temperature sensor (14) is also provided inside the organic waste combustion chamber (6) for monitoring the temperature of the flame in the organic waste combustion chamber (6).

5. The organic waste combustion heat energy driven well-tunnel type oil-rich coal pyrolysis system according to claim 1 is characterized in that: It also includes a control system (15) for controlling the ignition of the burner (13).

6. The organic waste combustion heat energy driven well-tunnel type oil-rich coal pyrolysis system according to claim 6 is characterized in that: The burner (13) is a gas burner.

7. The organic waste combustion heat energy driven well-tunnel type oil-rich coal pyrolysis system according to claim 6 is characterized in that: The control system (15) is an MCU controller.

8. A method for pyrolyzing oil-rich coal in a tunnel driven by the heat energy of burning organic waste, characterized in that: The method of using the organic waste combustion heat energy as described in any one of claims 1 to 7 to drive the well-type oil-rich coal pyrolysis system comprises the following steps: igniting a burner (13) inside the organic waste combustion chamber (6) to cause the fluid organic waste fuel (8) to burn and generate heat; The heat generated in the organic waste combustion chamber (6) is transferred to the oil-rich coal pyrolysis zone (1) through the heat-conducting layer (5), so that the oil-rich coal is heated and pyrolyzed; During the pyrolysis process, pyrolysis oil and gas (11) is extracted through the pyrolysis oil and gas extraction pipe (10).

9. The method for pyrolyzing oil-rich coal driven by the heat energy of combustion of organic waste according to claim 8, characterized in that: The heat conducting layer (5) is a stainless steel heat conducting layer.

10. The method for pyrolyzing oil-rich coal driven by the heat energy of combustion of organic waste according to claim 8, characterized in that: The pyrolysis oil and gas extraction pipe (10) is a stainless steel screen pipe.

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