Tar cracking device

Abstract

The utility model provides a tar cracking device which comprises a cracking device main body, a controllable jet flow nozzle, a first bluff body device, a second bluff body device, an electromagnetic induction coil and a coil controller, the controllable jet nozzles are arranged on the first furnace body and the second furnace body; the first bluff body device at least comprises a first bluff body fixing rod, a plurality of first bottom support structures arranged on the first bluff body fixing rod at intervals, first bluff body structures located on the first bottom support structures and second bluff body structures located between every two adjacent first bottom support structures. The second bluff body device at least comprises a second bluff body fixing rod, a plurality of second bottom support structures arranged on the second bluff body fixing rod at intervals, third bluff body structures located on the second bottom support structures and fourth bluff body structures located between every two adjacent second bottom support structures. The electromagnetic induction coil surrounds the cracking device body, and the coil controller is located on the electromagnetic induction coil. The tar cracking device disclosed by the utility model improves the cracking efficiency of tar.

Description

Technical Field

[0001] The utility model relates to the field of biomass gasification, in particular to a tar cracking device. Background Art

[0002] Energy and climate issues are topics of common concern to all mankind. In recent decades, the rate of energy consumption has shown a clear trend of acceleration. By 2021, the world's proven coal consumption can only last for 106 years, while oil can only last for 48.8 years. The consumption and depletion of traditional energy sources have made the world pay more attention to renewable and clean energy. Finding efficient and clean new energy to replace traditional fossil energy has become an urgent issue. At present, the new energy sources that can be effectively developed mainly include solar energy, hydropower, wind energy, and biomass energy. Among them, biomass energy has entered people's field of vision as a widely distributed, zero-carbon emission energy. my country is a big agricultural country. In order to achieve sustainable development in rural areas, it is necessary to strengthen the treatment of polluted waste in agricultural life. In agricultural production, the output of agricultural waste such as straw and rice straw is very large. If the waste is reasonably converted into energy, it can also be turned into treasure.

[0003] Biomass is dispersed, has low energy density, poor storage and transportation, and direct combustion of biomass has low energy utilization efficiency, only about 15%, and the emitted gases are likely to pollute the environment and aggravate the greenhouse effect. At present, there are three main ways to utilize biomass: physical conversion, thermochemical conversion, and biological conversion. Among them, the thermochemical conversion technology of biomass realizes the utilization of biomass energy through chemical oxidation-reduction reactions. Oil production and gas production is a form of thermochemical conversion technology. The biomass raw materials are heated at high temperature in a gasifier to react with the gasification medium such as oxygen and water vapor, and decompose into combustible and flammable small molecular particles, such as carbon monoxide, hydrogen, methane and small molecular hydrocarbons. Combustion after decomposition can greatly improve energy utilization efficiency and better protect the environment. However, tar may be produced during the biomass pyrolysis process. During the process of exhausting the gas, due to the drop in temperature, the tar will become a viscous liquid and adhere to the furnace wall and pipes. After combining with dust, it may cause pipe blockage and corrosion. In addition, primary tar and secondary tar contain about 5% to 10% of energy. Direct discharge will cause energy waste and reduce gasification efficiency. Therefore, the tar needs to be further cracked.

[0004] In view of this, there is an urgent need for a tar cracking device that can efficiently crack the tar produced during the biomass pyrolysis process. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a tar cracking device to solve the problem in the prior art that tar in the biomass pyrolysis process cannot be efficiently cracked, thereby reducing energy utilization efficiency and damaging equipment.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a tar cracking device, comprising:

[0007] The main body of the cracking device comprises a heat-insulating ventilation pipeline and a first furnace body and a second furnace body located on both sides of the heat-insulating ventilation pipeline and respectively connected to the heat-insulating ventilation pipeline, wherein the first furnace body and the second furnace body are respectively arranged at a preset angle to the heat-insulating ventilation pipeline, the first furnace body is provided with an air inlet, and the second furnace body is provided with an exhaust port;

[0008] A plurality of controllable jet nozzles are respectively arranged on the first furnace body and the second furnace body;

[0009] A first bluff device is located inside the first furnace body, the first bluff device at least comprises a first bluff fixing rod, a first bottom supporting structure, a first bluff structure and a second bluff structure, a plurality of the first bottom supporting structures are arranged on the first bluff fixing rod at intervals, the first bluff structure is located on a side of the first bottom supporting structure facing the gas flow direction entering the cracking device body from the gas inlet, and the second bluff structure is located on the first bluff fixing rod between two adjacent first bottom supporting structures;

[0010] A second bluff device is located inside the second furnace body, the second bluff device at least comprises a second bluff fixing rod, a second bottom supporting structure, a third bluff structure and a fourth bluff structure, a plurality of the second bottom supporting structures are arranged at intervals on the second bluff fixing rod, the third bluff structure is located on a side of the second bottom supporting structure facing the gas flow direction entering the cracking device body from the gas inlet, and the fourth bluff structure is located on the second bluff fixing rod between two adjacent second bottom supporting structures;

[0011] An electromagnetic induction coil surrounds the cracking device body;

[0012] The coil controller is arranged on the electromagnetic induction coil.

[0013] Optionally, the main body of the cracking device is U-shaped.

[0014] Optionally, the aspect ratio of the first furnace body is in the range of 10-50; the aspect ratio of the second furnace body is in the range of 10-50.

[0015] Optionally, a plurality of filter screens are further provided in the first furnace body and the second furnace body, and corresponding filter screens are provided at the first bluff body structure, the second bluff body structure, the third bluff body structure and the fourth bluff body structure.

[0016] Optionally, four controllable jet nozzles are provided on the cracking device body, and the four controllable jet nozzles are respectively arranged at the bottom and top of the first furnace body and the bottom and top of the second furnace body.

[0017] Optionally, the range of the controllable jet nozzle is 0.6m to 1.4m.

[0018] Optionally, the first bluff body fixing rod passes through the first bottom supporting structure, and the first bluff body structure is located at both side edges of the first bottom supporting structure; the second bluff body fixing rod passes through the second bottom supporting structure, and the third bluff body structure is located at both side edges of the second bottom supporting structure.

[0019] Optionally, the first bluff body structure includes at least two bluff body units; the second bluff body structure includes at least two bluff body units; the third bluff body structure includes at least two bluff body units; and the fourth bluff body structure includes at least two bluff body units.

[0020] Optionally, the shape of the bluff body unit comprises a cone.

[0021] Optionally, the first bluff body device is further provided with a third bottom supporting structure, and the second bluff body structure is arranged on the first bluff body fixing rod through the third bottom supporting structure; the second bluff body device is further provided with a fourth bottom supporting structure, and the fourth bluff body structure is arranged on the second bluff body fixing rod through the fourth bottom supporting structure.

[0022] As described above, the tar cracking device of the utility model has the following beneficial effects: by arranging the first furnace body, the heat-insulating ventilation duct and the second furnace body to form the U-shaped main body of the cracking device, the floor space is reduced, the gas path is effectively extended, and it is beneficial to further process the tar, and the yield and concentration of the combustible gas can be greatly improved, thereby ensuring a high cracking rate of the tar; the mixed gas of the biomass gas and the gasification medium is subjected to a first airflow disturbance through the controllable jet nozzle, the mixed gas of the biomass gas and the gasification medium is subjected to a second airflow disturbance through the first blunt body structure, the second blunt body structure, the third blunt body structure and the fourth blunt body structure, and the mixed gas of the biomass gas and the gasification medium is subjected to a third airflow disturbance through the filter, thereby increasing the reaction efficiency. The reaction area between the substances further improves the cracking speed of the tar, and provides a reliable guarantee for the biomass gas in the airflow to exert its maximum potential in the reaction; the coil controller controls the current, and then controls the electromagnetic induction coil to heat by electromagnetic induction, and then heats the mixed gas of the biomass gas and the gasification medium through the first bluff structure, the second bluff structure, the third bluff structure and the fourth bluff structure. This design not only ensures the reliable operation of the tar cracking device in a high temperature environment, but also provides it with accuracy and flexibility, making it suitable for a variety of industrial application scenarios, and due to the efficient heating performance of the electromagnetic induction coil, it is ensured that the tar cracking device can stably maintain an ultra-high temperature, while improving the tar cracking efficiency and avoiding overheating loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is a cross-sectional schematic diagram of the tar cracking device of the utility model.

[0024] Figure 2 Another cross-sectional schematic diagram of the tar cracking device of the utility model is shown.

[0025] Component number description

[0026] 1 Cracking device body

[0027] 11 Insulated ventilation duct

[0028] 12. First furnace

[0029] 121 Air Inlet

[0030] 13. Second furnace

[0031] 131 Exhaust port

[0032] 2 Controllable jet nozzle

[0033] 3. The First Bluff Body Device

[0034] 31 First Blunt Body Fixing Rod

[0035] 32 First base structure

[0036] 33 First Bluff Body Structure

[0037] 34 Second Bluff Body Structure

[0038] 35 Third base structure

[0039] 4 Second Blunt Body Device

[0040] 41 First Blunt Body Fixing Rod

[0041] 42 Second bottom support structure

[0042] 43 Third Bluff Body Structure

[0043] 44 Fourth Bluff Body Structure

[0044] 45 Fourth base structure

[0045] 5 Electromagnetic induction coil

[0046] 6 Coil Controller

[0047] 7 Filter

[0048] 8 Blunt Body Units DETAILED DESCRIPTION

[0049] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0050] See also Figure 1 to Figure 2 It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantially changing the technical content.

[0051] Embodiment 1

[0052] The utility model provides a tar cracking device, such as Figure 1 FIG. 1 is a cross-sectional schematic diagram of the tar cracking device, wherein the tar cracking device comprises: a cracking device body 1, a controllable jet nozzle 2, a first blunt body device 3, a second blunt body device 4, an electromagnetic induction coil 5 and a coil controller 6, wherein the cracking device body 1 comprises a heat-insulating ventilation pipe 11 and a first furnace body 12 and a second furnace body 13 located on both sides of the heat-insulating ventilation pipe 11 and respectively connected to the heat-insulating ventilation pipe 11, wherein the first furnace body 12 and the second furnace body 13 are respectively arranged at a preset angle to the heat-insulating ventilation pipe 11, and ... The first furnace body 12 is provided with an air inlet 121, and the second furnace body 13 is provided with an exhaust port 131; a plurality of controllable jet nozzles 2 are respectively arranged on the first furnace body 12 and the second furnace body 13; the first bluff body device 3 is located inside the first furnace body 12, and the first bluff body device 3 at least includes a first bluff body fixing rod 31, a first bottom supporting structure 32, a first bluff body structure 33 and a second bluff body structure 34, the first bottom supporting structure 32 is arranged on the first bluff body fixing rod 31 at intervals, and the first bluff body structure 33 is located on the first bottom supporting structure 32 to face the first bluff body from the first bluff body fixing rod 31. The gas inlet 121 enters the gas flow direction of the cracking device body, the second bluff structure 34 is located on the first bluff fixing rod 31 between two adjacent first bottom supporting structures 32; the second bluff device 4 is located inside the second furnace body 13, and the second bluff device 4 at least includes a second bluff fixing rod 41, a second bottom supporting structure 42, a third bluff structure 43 and a fourth bluff structure 44, the second bottom supporting structure 42 is arranged on the second bluff fixing rod 41 at intervals, and the third bluff structure 43 is located on the second bottom supporting structure 42 facing the first bluff fixing rod 41. The fourth bluff structure 44 is located on the second bluff fixing rod 41 between two adjacent second bottom supporting structures 42 on the side of the gas flow direction entering the cracking device body from the air inlet 121, and the first bluff structure 33, the second bluff structure 34, the third bluff structure 43 and the fourth bluff structure 44 are oriented in the opposite direction to the gas flow direction entering the cracking device body from the air inlet; the coil controller 6 is arranged on the electromagnetic induction coil 5, and the coil controller 6 is used to control the electromagnetic induction coil 5 to perform electromagnetic induction heating.

[0053] Specifically, under the condition that the performance of the tar cracking device is met, the angle between the first furnace body 12 and the insulated ventilation pipe 11 can be selected according to actual conditions, and is not limited here; the angle between the second furnace body 13 and the insulated ventilation pipe 11 can be selected according to actual conditions, and is not limited here.

[0054] As an example, the shape of the cracking device body 1 includes a U-shape or other suitable shapes, that is, the first furnace body 12, the heat-insulating ventilation pipe 11 and the second furnace body 13 constitute a U-shaped cracking device body 1.

[0055] As an example, the aspect ratio of the first furnace body 12 is in the range of 10 to 50; the aspect ratio of the second furnace body 13 is in the range of 10 to 50. The aspect ratio here refers to the ratio of the length to the width of the first furnace body 12; the ratio of the length to the width of the second furnace body 13.

[0056] Specifically, under the condition that the performance of the tar cracking device is met, the shape of the first furnace body 12 can be selected according to actual conditions, and is not limited here; the shape of the second furnace body 13 can be selected according to actual conditions, and is not limited here.

[0057] Specifically, the air inlet 121 is used to introduce the biomass gas generated during the biomass pyrolysis process into the first furnace body 12 .

[0058] Specifically, the biomass gas includes tar, wherein the tar includes primary tar, secondary tar and tertiary tar.

[0059] Specifically, the temperature of the biomass gas generated by pyrolysis of biomass is in the range of 700°C to 900°C.

[0060] As an example, four controllable jet nozzles 2 are provided on the cracking device body 1 , and the four controllable jet nozzles 2 are respectively arranged at the top and bottom of the first furnace body 12 and the top and bottom of the second furnace body 13 .

[0061] Specifically, the controllable jet nozzle 2 is used to spray the gasification medium into the first furnace body 12 and the second furnace body 13 respectively.

[0062] Specifically, the gasification medium includes at least one of water vapor and oxygen or other suitable gasification medium.

[0063] Specifically, the gasification medium can undergo methane reforming and water-gas conversion reactions with the biomass gas and aromatic hydrocarbon compounds in the tar to produce synthesis gas.

[0064] As an example, the range of the controllable jet nozzle 2 is 0.6m to 1.4m. In this embodiment, the range of the controllable jet nozzle 3 is 1m.

[0065] Specifically, the controllable jet nozzle 2 can precisely control the ratio of the water vapor and the oxygen in the injected gasification medium to ensure that the tar molecules in the biomass gas can undergo a sufficiently rapid cracking reaction.

[0066] Specifically, the gasification medium injected through the controllable jet nozzle 2 collides with the biomass gas, which can cause a first airflow disturbance to the biomass gas.

[0067] As an example, the first bluff body fixing rod 31 passes through the first bottom supporting structure 32, and the first bluff body structure 33 is located at the two side edges of the first bottom supporting structure 32; the second bluff body fixing rod 41 passes through the second bottom supporting structure 42, and the third bluff body structure 43 is located at the two side edges of the second bottom supporting structure 42.

[0068] As an example, the first bluff structure 33 includes at least two bluff units 8 ; the second bluff structure 34 includes at least two bluff units 8 ; the third bluff structure 43 includes at least two bluff units 8 ; and the fourth bluff structure 44 includes at least two bluff units 8 .

[0069] As an example, the shape of the bluff body unit 8 includes a cone or other suitable shapes.

[0070] As an example, the first bluff body device 3 is further provided with a third bottom supporting structure 35, and the second bluff body structure 34 is arranged on the bluff body fixing rod 31 through the third bottom supporting structure 35; the second bluff body device 4 is further provided with a fourth bottom supporting structure 45, and the fourth bluff body structure 44 is arranged on the bluff body fixing rod 41 through the fourth bottom supporting structure 45.

[0071] Specifically, the second bluff structure 34 is located on a side of the third supporting structure 35 facing the gas flow direction entering the cracking device body from the gas inlet; the fourth bluff structure 44 is located on a side of the fourth supporting structure 45 facing the gas flow direction entering the cracking device body from the gas inlet.

[0072] Specifically, the projections of the first bluff body structure 33 and the second bluff body structure 34 in the vertical direction are cross-staggered and arranged, and the projections of the third bluff body structure 43 and the fourth bluff body structure 44 in the vertical direction are cross-staggered and arranged.

[0073] Specifically, the biomass gas flowing in from the air inlet 121 passes through the first bluff structure 33 and the second bluff structure 34 cross-displacedly arranged in the first furnace body 12, and the third bluff structure 43 and the fourth bluff structure 44 cross-displacedly arranged in the second furnace body 13, and further reacts and disperses in the first furnace body 12 and the second furnace body 13, thereby performing a second airflow disturbance on the biomass gas.

[0074] Specifically, the material of the bluff unit 8 includes heat-resistant steel or other suitable materials.

[0075] Specifically, the first bluff structure 33 , the second bluff structure 34 , the third bluff structure 43 and the fourth bluff structure 44 may also heat the mixed gas of the biomass gas and the gasification medium.

[0076] Specifically, the first bluff structure 33, the second bluff structure 34, the third bluff structure 43 and the fourth bluff structure 44 are used as the iron core, which not only realizes the heating of the reaction gas inside the main body of the tar cracking device, but also the configuration of the bluff structure makes the reacting biomass gas contact with the gasification medium more fully, and the gas is heated more evenly.

[0077] Specifically, the electromagnetic induction coil 5 is heated by being controlled by the coil controller 6 .

[0078] Specifically, the electromagnetic induction coil 5 has an external heating function. The coil controller 6 controls the input of the variable frequency current to achieve precise regulation of the electromagnetic induction coil 5, thereby generating a strong magnetic field. The magnetic field causes the internal magnetic domains in the first bluff structure 33, the second bluff structure 34, the third bluff structure 43 and the fourth bluff structure 44 to be disordered, thereby increasing the magnetic resistance. The increase in magnetic resistance will further cause eddy current loss to produce a thermal effect, thereby generating a high-temperature environment for the tar molecules to be cracked.

[0079] Specifically, the temperature generated by the electromagnetic induction coil 5 ranges from 900°C to 1500°C.

[0080] Specifically, the coil controller 6 controls the current, thereby controlling the electromagnetic induction coil 5 to heat by electromagnetic induction, and then heating the mixed gas of the biomass gas and the gasification medium by induction of the first bluff structure 33, the second bluff structure 34, the third bluff structure 43 and the fourth bluff structure 44. This design not only ensures the reliable operation of the tar cracking device in a high temperature environment, but also provides it with accuracy and flexibility, making it suitable for a variety of industrial application scenarios. In addition, due to the efficient heating performance of the electromagnetic induction coil 5, it is ensured that the tar cracking device can be stably maintained at an ultra-high temperature, ensuring the tar cracking while avoiding overheating losses.

[0081] As an example, Figure 2As shown, it is another cross-sectional schematic diagram of the tar cracking device, a plurality of filter screens 7 are further provided in the first furnace body 12 and the second furnace body 13, and the first bluff structure 33, the second bluff structure 34, the third bluff structure 43 or the fourth bluff structure 44 are all provided with corresponding filter screens 7.

[0082] Specifically, the filter 7 is used to capture the primary tar that has not reacted completely in the biomass gas, and then perform a delayed cracking reaction on the small molecules in the primary tar. The carbon bonds of the small molecules in the primary tar are broken, isomerized and rearranged. Due to the action of the filter 7, the circulation and vortex process of the gas is enhanced, so that the reactants are fully mixed during cracking, and finally the reaction produces simple and stable compounds such as carbon monoxide and hydrogen.

[0083] Specifically, the primary tar is captured in multiple layers by the filter 7, and the vortex generated by the capture causes a third airflow disturbance of the mixed gas, further ensuring a maximum contact degree and sufficient heating of the biomass gas and the gasification medium.

[0084] Specifically, the controllable jet nozzle 2 performs a first airflow disturbance on the mixed gas of the biomass gas and the gasification medium, the first blunt body structure 33, the second blunt body structure 34, the third blunt body structure 43 and the fourth blunt body structure 44 perform a second airflow disturbance on the mixed gas of the biomass gas and the gasification medium, and the filter screen 7 performs a third airflow disturbance on the mixed gas of the biomass gas and the gasification medium, thereby increasing the reaction area between the reactants, effectively improving the reaction efficiency, further improving the cracking rate of the tar, and providing a reliable guarantee for the biomass gas in the airflow to exert its maximum potential in the reaction.

[0085] Specifically, to ensure that the tar is fully cracked, after the reaction in the first furnace body 12 is completed, the gas enters the second furnace body 13 through the insulated ventilation pipe 11 to undergo the same tar capture and cracking process to obtain combustible gas that does not contain the tar.

[0086] Specifically, the combustible gas includes at least carbon monoxide, hydrogen, methane and other small molecule hydrocarbon gases.

[0087] Specifically, the obtained combustible gas without the tar is discharged from the second furnace body 13 through the exhaust port 131 .

[0088] Specifically, the U-shaped cracking device body 1 composed of the first furnace body 12, the heat-insulating ventilation pipe 11 and the second furnace body 13 effectively extends the gas path, is conducive to further processing of the tar, can greatly increase the output and concentration of the combustible gas, and ensure a high cracking rate of the tar.

[0089] The tar cracking device of the present embodiment forms a U-shaped cracking device body 1 through the first furnace body 12, the heat-insulating ventilation pipe 11 and the second furnace body 13, which effectively extends the gas path, is conducive to further processing of the tar, can greatly improve the yield and concentration of the combustible gas, and ensure a high cracking rate of the tar; the mixed gas of the biomass gas and the gasification medium is subjected to a first airflow disturbance through the controllable jet nozzle 2, the mixed gas of the biomass gas and the gasification medium is subjected to a second airflow disturbance through the first blunt body structure 33, the second blunt body structure 34, the third blunt body structure 43 and the fourth blunt body structure 44, and the mixed gas of the biomass gas and the gasification medium is subjected to a third airflow disturbance through the filter screen 7, thereby increasing the reaction area between the reactants, and further The cracking speed of the tar is further improved, providing a reliable guarantee for the biomass gas in the airflow to exert its maximum potential in the reaction; the coil controller 6 controls the current, thereby controlling the electromagnetic induction coil 5 to heat by electromagnetic induction, and then the first bluff structure 33, the second bluff structure 34, the third bluff structure 43 and the fourth bluff structure 44 heat the mixed gas of the biomass gas and the gasification medium. This design not only ensures the reliable operation of the tar cracking device in a high temperature environment, but also provides it with accuracy and flexibility, making it suitable for a variety of industrial application scenarios. Due to the efficient heating performance of the electromagnetic induction coil 5, it is ensured that the tar cracking device can be stably maintained at an ultra-high temperature, thereby improving the tar cracking efficiency and avoiding overheating loss.

[0090] In summary, the tar cracking device of the utility model reduces the floor space of the device by setting a U-shaped cracking device body, effectively extends the gas path, is conducive to further processing of tar, can greatly improve the yield and concentration of combustible gas, and ensure a high cracking rate of tar; the mixed gas of biomass gas and gasification medium is subjected to a first airflow disturbance through a controllable jet nozzle, the mixed gas of biomass gas and gasification medium is subjected to a second airflow disturbance through a first blunt body structure, a second blunt body structure, a third blunt body structure and a fourth blunt body structure, and the mixed gas of biomass gas and gasification medium is subjected to a third airflow disturbance through a filter, thereby increasing the reaction area between reactants and further improving the cracking rate of tar. degree, providing a reliable guarantee for the biomass gas in the airflow to exert its maximum potential in the reaction; the current is controlled by the coil controller, and then the electromagnetic induction coil is controlled to heat by electromagnetic induction, and then the mixed gas of the biomass gas and the gasification medium is heated by the first bluff structure, the second bluff structure, the third bluff structure and the fourth bluff structure. This design not only ensures the reliable operation of the tar cracking device in a high temperature environment, but also provides it with accuracy and flexibility, making it suitable for a variety of industrial application scenarios, and due to the efficient heating performance of the electromagnetic induction coil, it ensures that the tar cracking device can be stably maintained at an ultra-high temperature, improving the tar cracking efficiency while avoiding overheating losses. Therefore, the utility model effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0091] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A tar cracking device, characterized in that: include: The main body of the cracking device comprises a heat-insulating ventilation pipeline and a first furnace body and a second furnace body located on both sides of the heat-insulating ventilation pipeline and respectively connected to the heat-insulating ventilation pipeline, wherein the first furnace body and the second furnace body are respectively arranged at a preset angle to the heat-insulating ventilation pipeline, the first furnace body is provided with an air inlet, and the second furnace body is provided with an exhaust port; A plurality of controllable jet nozzles are respectively arranged on the first furnace body and the second furnace body, and the controllable jet nozzles are used to spray gasification medium into the first furnace body and the second furnace body; A first bluff device is located inside the first furnace body, the first bluff device at least comprises a first bluff fixing rod, a first bottom supporting structure, a first bluff structure and a second bluff structure, a plurality of the first bottom supporting structures are arranged on the first bluff fixing rod at intervals, the first bluff structure is located on a side of the first bottom supporting structure facing the gas flow direction entering the cracking device body from the gas inlet, and the second bluff structure is located on the first bluff fixing rod between two adjacent first bottom supporting structures; A second bluff device is located inside the second furnace body, the second bluff device at least comprises a second bluff fixing rod, a second bottom supporting structure, a third bluff structure and a fourth bluff structure, a plurality of the second bottom supporting structures are arranged at intervals on the second bluff fixing rod, the third bluff structure is located on a side of the second bottom supporting structure facing the gas flow direction entering the cracking device body from the gas inlet, and the fourth bluff structure is located on the second bluff fixing rod between two adjacent second bottom supporting structures; An electromagnetic induction coil surrounds the cracking device body; The coil controller is arranged on the electromagnetic induction coil.

2. The tar cracking device according to claim 1, characterized in that: The main body of the cracking device is in a U-shape.

3. The tar cracking device according to claim 1, characterized in that: The aspect ratio of the first furnace body is in the range of 10-50; the aspect ratio of the second furnace body is in the range of 10-50.

4. The tar cracking device according to claim 1, characterized in that: A plurality of filter screens are further disposed in the first furnace body and the second furnace body, and corresponding filter screens are disposed at the first bluff structure, the second bluff structure, the third bluff structure and the fourth bluff structure.

5. The tar cracking device according to claim 1, characterized in that: The main body of the cracking device is provided with four controllable jet nozzles, and the four controllable jet nozzles are respectively arranged at the bottom and top of the first furnace body and the bottom and top of the second furnace body.

6. The tar cracking device according to claim 1, characterized in that: The range of the controllable jet nozzle is 0.6m to 1.4m.

7. The tar cracking device according to claim 1, characterized in that: The first bluff fixing rod passes through the first bottom supporting structure, and the first bluff structure is located at both side edges of the first bottom supporting structure; the second bluff fixing rod passes through the second bottom supporting structure, and the third bluff structure is located at both side edges of the second bottom supporting structure.

8. The tar cracking device according to claim 1, characterized in that: The first bluff body structure includes at least two bluff body units; the second bluff body structure includes at least two bluff body units; the third bluff body structure includes at least two bluff body units; and the fourth bluff body structure includes at least two bluff body units.

9. The tar cracking device according to claim 8, characterized in that: The shape of the bluff body unit includes a cone.

10. The tar cracking device according to claim 1, characterized in that: The first bluff body device is further provided with a third bottom supporting structure, and the second bluff body structure is arranged on the first bluff body fixing rod through the third bottom supporting structure; the second bluff body device is further provided with a fourth bottom supporting structure, and the fourth bluff body structure is arranged on the second bluff body fixing rod through the fourth bottom supporting structure.

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