Reaction system adopting steel slag for carbon sequestration

Abstract

The invention discloses a reaction system adopting steel slag for carbon sequestration. The carbon sequestration reaction system comprises a reaction tank (2), a stir-frying driving motor (5) and an induced draft fan (6), the reaction tank is provided with a feed port (26), a discharge port (25) and an exhaust pipe port (24); a material frying plate assembly (21) is arranged in the reaction tank, the material frying plate assembly comprises a material frying main shaft (211) and a plurality of material frying plates (212), the material frying main shaft is mounted in the reaction tank through a pivot mechanism, the plurality of material frying plates are assembled on the material frying main shaft, and the material frying plates extend based on the material frying main shaft; the frying driving motor is used for driving the frying plate assembly to rotate; an air inlet of the induced draft fan is communicated to a carbon dioxide emission source, and an air outlet of the induced draft fan is communicated to the reaction tank. The carbon sequestration reaction system disclosed by the invention can quickly cure and treat a large amount of carbon dioxide gas, is relatively high in treatment efficiency and is suitable for industrial mass production.

Description

Technical Field

[0001] The invention relates to a carbon dioxide solidification technology, and in particular to a carbon fixation reaction system using steel slag. Background Art

[0002] The steel slag produced by steelmaking is a good available resource and can be used for paving roads. However, the steel slag contains a large amount of unstable free calcium oxide, which makes the steel slag prone to expansion and powdering and poor volume stability, which in turn leads to a series of quality problems such as road expansion and cracking when the steel slag is used in road projects. At present, carbon dioxide is mainly used to react with free calcium oxide in steel slag to form calcium carbonate, which can effectively improve the stability of steel slag and expand the scope of steel slag utilization, while also reducing carbon dioxide gas emissions, with the dual benefits of carbon emission reduction and solid waste resource recovery.

[0003] The current problem is that there is currently no equipment specifically used to "fully mix carbon dioxide gas with steel slag and use steel slag to solidify carbon dioxide gas". Currently, it can only be implemented using traditional steam-curing kettles. However, the implementation effect is not good, the efficiency of treating carbon dioxide gas is low, and it is not suitable for large-scale industrial production. Summary of the invention

[0004] The object of the present invention is to provide a carbon fixation reaction system using steel slag, which can rapidly solidify and treat carbon dioxide gas in large quantities, has high treatment efficiency, and is suitable for large-scale industrial production.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0006] A carbon fixation reaction system using steel slag, the carbon fixation reaction system comprising a reaction tank, a stir-frying drive motor and an induced draft fan; the reaction tank has a feed inlet, a discharge port and an exhaust pipe port; a stir-frying plate assembly is arranged inside the reaction tank, the stir-frying plate assembly comprises a stir-frying main shaft and a plurality of stir-frying plates, the stir-frying main shaft is installed in the reaction tank through a pivot mechanism, the plurality of stir-frying plates are assembled on the stir-frying main shaft, and the stir-frying plates are extended based on the stir-frying main shaft; the stir-frying drive motor is used for driving the stir-frying plate assembly to rotate; the air inlet of the induced draft fan is connected to a carbon dioxide emission source, and the air outlet of the induced draft fan is connected to the reaction tank.

[0007] Furthermore, one end of the reaction tank serves as the rear end portion, and the other end of the reaction tank serves as the front end portion.

[0008] Furthermore, the rear end of the reaction tank is configured as a quick-opening door structure that can be opened and closed.

[0009] Furthermore, the stir-frying drive motor is used to drive the stir-frying plate assembly to rotate, and its specific structural form is: the rotational power output end of the stir-frying drive motor passes through the rear end of the reaction tank from the outside of the reaction tank and is assembled and connected to the stir-frying plate assembly inside the reaction tank, and the stir-frying drive motor can drive the stir-frying plate assembly to rotate.

[0010] Furthermore, the carbon fixation reaction system also includes a mobile trolley, which is arranged at one side of the rear end of the reaction tank; the frying material driving motor is placed on the mobile trolley, and the quick-opening door is assembled on the rotational power output end of the frying material driving motor. The quick-opening door and the frying material plate assembly can move together with the frying material driving motor based on the mobile trolley.

[0011] Furthermore, the rear end of the reaction tank is configured as a detachable flange surface structure.

[0012] Furthermore, the discharge port is arranged at the front end of the reaction tank; the frying plate extends based on the frying main axis, and its specific structural form is: the frying plate extends obliquely toward the front end of the reaction tank based on the frying main axis, and extends to the inner circumference close to the reaction tank.

[0013] Furthermore, in the stir-frying plate assembly, all stir-frying plates are staggered based on the stir-frying main axis; and the stir-frying plates are in a propeller blade configuration.

[0014] Furthermore, an auxiliary frying plate is arranged on the inner wall of the reaction tank.

[0015] A carbon fixation reaction system using steel slag, the carbon fixation reaction system includes a reaction tank, a stir-frying drive motor and an induced draft fan; the reaction tank has a feed inlet, a discharge port and an exhaust pipe port; a stir-frying plate assembly is arranged inside the reaction tank, the stir-frying plate assembly includes a stir-frying main shaft and a plurality of stir-frying plates, the stir-frying main shaft is installed in the reaction tank through a pivot mechanism, the plurality of stir-frying plates are assembled on the stir-frying main shaft, and the stir-frying plates are extended based on the stir-frying main shaft; the stir-frying drive motor is used for driving the stir-frying plate assembly to rotate; the air inlet of the induced draft fan is connected to the flue and the reaction tank at the same time through a three-way reversing pipeline, and the air outlet of the induced draft fan is connected to the flue and the reaction tank at the same time through a three-way reversing pipeline.

[0016] Compared with the prior art, the carbon fixation reaction system of the present invention has the following beneficial effects:

[0017] In the carbon fixation reaction system of the present invention, a stir-frying plate assembly is provided in the reaction tank, and a stir-frying drive motor is configured for the stir-frying plate assembly. The stir-frying plate assembly can rotate and stir-fry in the reaction tank under the drive of the stir-frying drive motor; steel slag is loaded into the reaction tank, and carbon dioxide gas is introduced into the reaction tank, and the stir-frying plate assembly is controlled to rotate forward and reverse periodically, and the stir-frying plate assembly can repeatedly stir-fry and stir the steel slag, so that the steel slag in the reaction tank is fully in contact with the flue gas, and the carbon dioxide gas component in the flue gas is gradually absorbed and solidified by the steel slag, thereby reducing the carbon dioxide gas content in the flue gas, thereby achieving the purpose of carbon reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the steel slag carbon fixation reaction system used in the present invention. DETAILED DESCRIPTION

[0019] The present invention will be further described below with specific embodiments:

[0020] This embodiment provides a carbon fixation reaction system using steel slag, which is used to solidify the carbon dioxide gas emitted by the carbon dioxide emission source to achieve the purpose of emission reduction and carbon reduction.

[0021] In this embodiment, the carbon dioxide emission source is a thermal power plant, and the flue gas generated by burning coal contains a large amount of carbon dioxide gas. The carbon fixation reaction system of this embodiment is used to solidify the carbon dioxide gas in the flue gas.

[0022] See also Figure 1 , a pipeline is shown at the top of the figure, which is the flue 1 for discharging flue gas from the thermal power plant.

[0023] See also Figure 1 The carbon fixation reaction system of this embodiment includes a reaction tank 2, a stir-frying driving motor 5 and an induced draft fan 6.

[0024] The reaction tank 2 is cylindrical in shape as a whole. The reaction tank 2 is substantially a horizontal pressure vessel, and is fixedly mounted on two supporting frames 4 as a whole.

[0025] For the convenience of distinguishing description, the cylindrical end of the reaction tank 2 is referred to as the rear end ( Figure 1 The other cylindrical end of the reaction tank 2 is called the front end ( Figure 1 right end of the orientation shown).

[0026] In this embodiment, the rear end of the reaction tank 2 is configured as a quick-opening door 27 structure that can be opened and closed, so that the stir-frying plate assembly 21 can be easily moved in and out of the reaction tank 2 as a whole.

[0027] In other embodiments, the rear end of the reaction tank 2 may also be configured as a detachable flange surface structure, also to facilitate the entire frying plate assembly 21 to enter and exit the reaction tank 2.

[0028] In summary, the rear end of the reaction tank 2 can be set to an openable and closable structure, so as to facilitate the entire stir-frying plate assembly 21 to enter and exit the reaction tank 2.

[0029] An opening is provided at the front end of the reaction tank 2, and the opening is called a discharge port 25. The discharge port 25 is used to discharge the solid material (steel slag) in the reaction tank 2 from the discharge port 25. A cover is provided for the discharge port 25, and the cover is provided as a quick-opening blind plate structure. In addition, an exhaust pipe port 24 is also provided on the cover. The exhaust pipe port 24 is connected to the external atmosphere, and a valve is also provided on the exhaust pipe port 24. In order to facilitate the distinction of description, the valve provided on the exhaust pipe port 24 is referred to as an "exhaust valve". By controlling the exhaust valve, the gas in the reaction tank 2 can be controlled to pass from the exhaust pipe port 24 to the atmosphere. The exhaust pipe port 24 is used to discharge the flue gas after the carbon dioxide solidification treatment.

[0030] An opening is provided at the upper part of the circumference of the middle part of the reaction tank 2, which is called a feed port 26, and the feed port 26 is used to allow external materials to be input into the reaction tank 2 through the feed port 26. A cover is provided for the feed port 26, and the cover is set as a quick-open blind plate structure.

[0031] A stir-frying plate assembly 21 is arranged inside the reaction tank 2 , and the stir-frying plate assembly 21 is composed of a stir-frying main shaft 211 and a plurality of stir-frying plates 212 .

[0032] The stir-frying spindle 211 is installed in the reaction tank 2 through a pivot mechanism and is in a horizontal state. The stir-frying spindle 211 is on the central axis of the reaction tank 2, and the central axes of the two are coaxial. One end of the stir-frying spindle 211 located at the rear end of the reaction tank 2 serves as a power input end, which is used to receive the drive of the stir-frying drive motor 5. The power input end of the stir-frying spindle 211 can also be understood as the power input end of the entire stir-frying plate assembly 21.

[0033] The numerous stir-fry plates 212 are all assembled on the stir-fry main shaft 211 through a quick assembly mechanism in the prior art.

[0034] For a single stir-fry plate 212,

[0035] The stir-fry plate 212 adopts a propeller blade configuration and is made of steel;

[0036] The stir-fry plate 212 extends obliquely from the stir-fry main shaft 211 toward the front end of the reaction tank 2 where the discharge port 25 is located, and extends close to the inner peripheral surface of the reaction tank 2. In this way, when the stir-fry plate assembly 21 continues to rotate forward (the actual rotation direction depends on the tilting direction of the stir-fry plate 212), the material in the reaction tank 2 will be pushed toward the discharge port 25 and discharged from the discharge port 25;

[0037] All the stir-fry plates 212 are installed and arranged in a staggered manner on the stir-fry main shaft 211 .

[0038] It should be noted that, in other embodiments, the configuration setting, material selection and arrangement of the stir-frying plate 212 on the stir-frying spindle 211 can be determined according to actual needs.

[0039] It should be noted that a mounting bracket (not shown in the figure) is specially provided in the reaction tank 2 for "installing the frying plate assembly 21", and the frying spindle 211 is assembled on the mounting bracket through a pivot mechanism, thereby realizing the installation of the frying plate assembly 21 inside the reaction tank 2, which is easy to understand for those skilled in the art.

[0040] A stir-frying driving motor 5 is configured for the stir-frying plate assembly 21 , and the stir-frying driving motor 5 is used to drive the stir-frying plate assembly 21 in the reaction tank 2 to rotate.

[0041] Specifically, the rotational power output end of the stir-frying driving motor 5 passes through the rear end of the reaction tank 2 from the outside of the reaction tank 2 and is assembled and connected with the power input end of the stir-frying plate assembly 21 inside the reaction tank 2. The stir-frying driving motor 5 can drive the stir-frying plate assembly 21 to rotate through the power input end of the stir-frying plate assembly 21, and the stir-frying plate 212 of the stir-frying plate assembly 21 can perform a rotational stirring action in the reaction tank 2, which is the action of "stir-frying".

[0042] It should be noted that a sealing structure is provided at the position where the rotary power output end of the stir-fry driving motor 5 passes through the rear end of the reaction tank 2 to ensure the overall sealing of the reaction tank 2 .

[0043] It should be noted that, in the present embodiment, the stir-fry driving motor 5 is placed on a small vehicle, so that the stir-fry driving motor 5 can be easily moved.

[0044] In this embodiment, a mobile trolley 7 is also provided for the frying drive motor 5 and the quick opening door 27. The mobile trolley 7 is arranged at one side of the rear end of the reaction tank 2. The mobile trolley 7 is driven by a motor, and the mobile trolley 7 moves based on a track 8 arranged on the side of the reaction tank 2.

[0045] The stir-frying driving motor 5 (including the trolley) is placed on the mobile trolley 7. On the one hand, the stir-frying driving motor 5 can move freely on the mobile trolley 7. On the other hand, the mobile trolley 7 carrying the stir-frying driving motor 5 can move close to or away from the rear end of the reaction tank 2.

[0046] The mobile trolley 7 has two platforms, a high platform and a low platform. The high platform is used to place the stir-frying driving motor 5, and the low platform is used to place the quick-opening door 27.

[0047] As mentioned above, the rear end of the reaction tank 2 is configured as a quick-opening door 27 structure that can be opened and closed. The quick-opening door 27 can be assembled on the rotational power output end of the frying material driving motor 5 through a bearing mechanism. In this way, the quick-opening door 27 and the entire frying material plate assembly 21 can be based on the mobile trolley 7 together with the frying material driving motor 5, so that it is convenient to move the position of the mobile trolley 7 together with the frying material driving motor 5, and can be moved away from the reaction tank 2, or moved close to the reaction tank 2, the frying material plate assembly 21 enters the reaction tank 2, and the quick-opening door 27 is closed with the reaction tank 2.

[0048] It should be noted that in other embodiments, other forms of power drive mechanisms may be used to replace the stir-fry drive motor 5 to drive the stir-fry plate assembly 21 to rotate, and the present invention is not limited to this.

[0049] The induced draft fan 6 is used for

[0050] “Gas (usually carbon dioxide gas) is extracted from flue 1, and then the extracted gas is guided to reaction tank 2”.

[0051] or,

[0052] “Gas is extracted from the reaction tank 2 and then guided into the flue 1”.

[0053] Specifically,

[0054] The air inlet of the induced draft fan 6 is connected to the "flue 1" and the "reaction tank 2" through a three-way branch pipeline, and valves are provided on the branch pipelines connecting the "flue 1" and the "reaction tank 2". In this way, the source of the gas extracted by the induced draft fan 6 can be controlled by controlling the opening and closing of the valve.

[0055] The air outlet of the induced draft fan 6 is connected to the "flue 1" and the "reaction tank 2" at the same time through a three-way branch pipeline, and valves are provided on the branch pipelines connecting the "flue 1" and the "reaction tank 2". In this way, the target of the induced draft fan 6 to export the gas can be controlled by controlling the opening and closing of the valve.

[0056] For the convenience of description, the above-mentioned "three-way branch pipeline connected and valved" pipeline form is called "three-way reversing pipeline". In this way, the connection relationship between the induced draft fan 6, the flue 1 and the "reaction tank 2" can be summarized as follows: the air inlet and outlet of the induced draft fan 6 are both connected to the "flue 1" and the "reaction tank 2" through the three-way reversing pipeline. The purpose of this setting is to facilitate the switching of the direction of the airflow guided by the induced draft fan 6, "guiding the airflow from the flue 1 to the reaction tank 2" or "guiding the airflow from the reaction tank 2 to the flue 1".

[0057] It should be noted that, in other embodiments, if there are no special environmental protection requirements, the air inlet of the induced draft fan 6 can be connected only to the flue 1, and the air outlet of the induced draft fan 6 can be connected only to the "reaction tank 2", as long as it can be achieved that "the induced draft fan 6 extracts carbon dioxide gas from the flue 1 and transports the extracted carbon dioxide gas to the reaction tank 2".

[0058] The specific operation process of the carbon fixation reaction system of this embodiment is as follows:

[0059] S1, open the cover of the feed port 26 of the reaction tank 2, load the pre-prepared steel slag into the reaction tank 2 through the feed port 26, and close the cover of the feed port 26;

[0060] S2, by controlling the opening and closing of the valve, the air inlet of the induced draft fan 6 is connected to the flue 1, and the air outlet of the induced draft fan 6 is connected to the reaction tank 2;

[0061] S3, opening the exhaust valve at the exhaust pipe port 24, starting the induced draft fan 6, and the induced draft fan 6 continuously introduces the flue gas in the flue 1 into the reaction tank 2. During this process, the gas in the reaction tank 2 (the gas that has been treated before) is discharged into the atmosphere through the exhaust pipe port 24;

[0062] S4, when the gas in the reaction tank 2 has been completely replaced by the newly added flue gas (flue gas emerges from the exhaust pipe port 24), the induced draft fan 6 is turned off and the exhaust valve at the exhaust pipe port 24 is closed. At this time, the reaction tank 2 is in a closed state;

[0063] S5, control the stir-fry driving motor 5 to start running, that is, control the stir-fry plate assembly 21 to start rotating, and periodically rotate forward and reverse, so that under the stir-frying and stirring action of the stir-fry plate assembly 21, the steel slag in the reaction tank 2 is fully in contact with the flue gas, and the carbon dioxide gas component in the flue gas is gradually absorbed and solidified by the steel slag, thereby reducing the carbon dioxide gas content in the flue gas, thereby achieving the purpose of carbon reduction;

[0064] S6, repeating the above steps S3 to S5 until the steel slag in the reaction tank 2 no longer has the carbon absorption effect, opening the cover at the discharge port 25 of the reaction tank 2, controlling the stir-frying plate assembly 21 to rotate forward in one direction, and the stir-frying plate assembly 21 can gradually push the steel slag to the discharge port 25, and discharge the steel slag from the discharge port 25;

[0065] By repeating the above steps S1 to S6, the flue gas discharged from the thermal power plant can be continuously solidified with carbon dioxide gas.

[0066] In addition, when it is necessary to recover the flue gas in the reaction tank 2 into the flue 1, the valve on the three-way reversing pipeline can be controlled so that the air inlet of the induced draft fan 6 is connected to the reaction tank 2, and the air outlet of the induced draft fan 6 is connected to the flue 1. In this way, the function of recovering the flue gas in the reaction tank 2 can be realized.

[0067] It should be noted that the carbon fixation reaction system of the present invention is not only used to treat flue gas emitted by thermal power plants, but can also be used to solidify carbon dioxide gas in flue gas containing carbon dioxide gas emitted by other carbon dioxide emission sources.

[0068] It should be noted that, as mentioned above, the quick-opening door 27 and the entire stir-frying plate assembly 21 can be moved together with the stir-frying drive motor 5 based on the moving trolley 7. In this way, the stir-frying plate 212 can be installed on the outside of the reaction tank 2 and the angle can be adjusted before being assembled into the reaction tank 2, thereby facilitating the loading and unloading of the stir-frying plate assembly 21.

[0069] It should be noted that the design of the stir-frying plate 212 can be adjusted in terms of angle, strength, length, etc. according to different smoke media or final reaction effects, and it is a consumable part and complete set of components that can be disassembled and replaced.

[0070] It should be noted that some auxiliary stir-frying plates can also be set on the inner wall of the reaction tank 2, and these auxiliary stir-frying plates correspond to the stir-frying plates 212 on the stir-frying plate assembly 21, so as to achieve a better stirring effect. The auxiliary stir-frying plates can be set as a plurality of ridges on the inner wall of the reaction tank 2.

[0071] It should be noted that some supporting facilities may be provided at the feed port 26 and the discharge port 25 . For example, a hopper may be provided at the feed port 26 to facilitate feeding; or a discharge chute may be provided at the discharge port 25 to facilitate discharging of the material from the discharge port 25 .

[0072] The carbon fixation reaction system of this embodiment has the following advantages:

[0073] In the carbon fixation reaction system of the present embodiment, a stir-frying plate assembly 21 capable of rotating and stir-frying materials is provided in the reaction tank 2, and a stir-frying driving motor 5 is configured for the stir-frying plate assembly 21. Steel slag is loaded into the reaction tank 2, and carbon dioxide gas is introduced into the reaction tank 2. The stir-frying driving motor 5 is controlled to drive the stir-frying plate assembly 21 to rotate forward and reverse periodically, and the stir-frying plate assembly 21 can repeatedly stir and stir the steel slag. The steel slag in the reaction tank 2 is in full contact with the flue gas, and the carbon dioxide gas component in the flue gas is gradually absorbed and solidified by the steel slag, thereby reducing the carbon dioxide gas content in the flue gas, thereby achieving the purpose of carbon reduction.

[0074] The carbon fixation reaction system of this embodiment is a device specially used to realize the function of "making carbon dioxide gas and steel slag fully mix and contact, and using steel slag to absorb and solidify carbon dioxide gas". It can process carbon dioxide gas in large quantities and quickly, with high processing efficiency, and is suitable for large-scale industrial production.

[0075] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel slag carbon fixation reaction system, characterized in that: The carbon fixation reaction system comprises a reaction tank (2), a material frying drive motor (5) and an induced draft fan (6); The reaction tank (2) has a feed port (26), a discharge port (25) and an exhaust pipe port (24); A stir-frying plate assembly (21) is arranged inside the reaction tank (2), and the stir-frying plate assembly (21) comprises a stir-frying main shaft (211) and a plurality of stir-frying plates (212), the stir-frying main shaft (211) is installed in the reaction tank (2) via a pivot mechanism, the plurality of stir-frying plates (212) are mounted on the stir-frying main shaft (211), and the stir-frying plates (212) are extended based on the stir-frying main shaft (211); The stir-frying drive motor (5) is used to drive the stir-frying plate assembly (21) to rotate; The air inlet of the induced draft fan (6) is connected to a carbon dioxide emission source, and the air outlet of the induced draft fan (6) is connected to the reaction tank (2).

2. The steel slag carbon fixation reaction system according to claim 1 is characterized in that: One end of the reaction tank (2) serves as a rear end, and the other end of the reaction tank (2) serves as a front end.

3. The steel slag carbon fixation reaction system according to claim 2 is characterized in that: The rear end of the reaction tank (2) is arranged in a structure form of a quick-opening door (27) that can be opened and closed.

4. The steel slag carbon fixation reaction system according to claim 3 is characterized in that: The stir-frying drive motor (5) is used to drive the stir-frying plate assembly (21) to rotate, and its specific structural form is: the rotational power output end of the stir-frying drive motor (5) passes through the rear end of the reaction tank (2) from the outside of the reaction tank (2) and is assembled and connected with the stir-frying plate assembly (21) inside the reaction tank (2), so that the stir-frying drive motor (5) can drive the stir-frying plate assembly (21) to rotate.

5. The steel slag carbon fixation reaction system according to claim 4 is characterized in that: The carbon fixation reaction system further comprises a mobile trolley (7), wherein the mobile trolley (7) is arranged at one side of the rear end of the reaction tank (2); The stir-frying drive motor (5) is arranged on the mobile trolley (7), and the quick-opening door (27) is mounted on the rotational power output end of the stir-frying drive motor (5). The quick-opening door (27) and the stir-frying plate assembly (21) can move along with the stir-frying drive motor (5) based on the mobile trolley (7).

6. The steel slag carbon fixation reaction system according to claim 2 is characterized in that: The rear end of the reaction tank (2) is arranged in a detachable flange surface structure.

7. The steel slag carbon fixation reaction system according to claim 2 is characterized in that: The discharge port (25) is arranged at the front end of the reaction tank (2); The stir-frying plate (212) extends based on the stir-frying main shaft (211), and its specific structural form is: the stir-frying plate (212) extends obliquely toward the front end side of the reaction tank (2) based on the stir-frying main shaft (211), and extends to a position close to the inner peripheral surface of the reaction tank (2).

8. The steel slag carbon fixation reaction system according to claim 1, characterized in that: In the stir-frying plate assembly (21), all stir-frying plates (212) are arranged in a staggered manner based on the stir-frying main axis (211); and the stir-frying plates (212) are in a propeller blade configuration.

9. The steel slag carbon fixation reaction system according to claim 1, characterized in that: An auxiliary frying plate is arranged on the inner wall of the reaction tank (2).

10. A steel slag carbon fixation reaction system, characterized in that: The carbon fixation reaction system comprises a reaction tank (2), a material frying drive motor (5) and an induced draft fan (6); The reaction tank (2) has a feed port (26), a discharge port (25) and an exhaust pipe port (24); A stir-frying plate assembly (21) is arranged inside the reaction tank (2), and the stir-frying plate assembly (21) comprises a stir-frying main shaft (211) and a plurality of stir-frying plates (212), the stir-frying main shaft (211) is installed in the reaction tank (2) via a pivot mechanism, the plurality of stir-frying plates (212) are mounted on the stir-frying main shaft (211), and the stir-frying plates (212) are extended based on the stir-frying main shaft (211); The stir-frying drive motor (5) is used to drive the stir-frying plate assembly (21) to rotate; The air inlet of the induced draft fan (6) is simultaneously connected to the flue (1) and the reaction tank (2) through a three-way reversing pipeline, and the air outlet of the induced draft fan (6) is simultaneously connected to the flue (1) and the reaction tank (2) through a three-way reversing pipeline.

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