Reaction kettle

Abstract

The utility model belongs to the technical field of chemical equipment, and discloses a reaction kettle which comprises a kettle body, a heating device and a pressure control device, a stirring paddle is arranged in the kettle body, a heating sleeve clamp is arranged on the peripheral wall of the kettle body, and an exhaust port is formed in the top end of the kettle body; the heating device comprises a ventilation assembly and a heating assembly, the ventilation assembly is arranged in the kettle body and is opposite to the stirring paddle, and the heating assembly is connected with the ventilation assembly and can provide heated inert gas for the ventilation assembly; the pressure control device comprises a condensation assembly and a pressure release valve, and the two ends of the condensation assembly are connected with the exhaust port and the pressure release valve respectively. The heating device is matched with the pressure control device, so that the internal pressure of the kettle body is kept constant while solvent loss is avoided, and the internal temperature of the kettle body can reach the reaction temperature which cannot be reached by a conventional reaction kettle.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a reaction kettle. Background Art

[0002] In a reactor, the phenomenon in which solid, liquid, or gaseous reactants (solutes) are dispersed in a liquid dispersion medium (solvent) in the form of molecules, ions, colloids, particles, or droplets under certain conditions is called a dispersed solvent system. Some dispersed solvent systems have low boiling points, such as methanol and ethanol, which produce a large amount of solvent vapor during the polymerization process. Generally, the reactor will directly depressurize and vent to ensure safety, or seal the device for condensation and reflux. The problem is that if the pressure is directly released, it will lead to solvent loss, increased reaction concentration, poor polymerization dispersion effect, and implosion. In addition, due to the low boiling point of the solvent, the reactor cannot achieve dispersed polymerization reactions with reaction temperatures higher than the boiling point, which seriously limits the process conditions for dispersed polymerization. If the device is kept sealed, due to the self-acceleration of the reaction, it is impossible to ensure that the air pressure in the reactor remains within a safe range, which is prone to safety accidents. Utility Model Content

[0003] The purpose of the utility model is to provide a reactor that heats evenly, can maintain a stable pressure and reach a reaction temperature higher than the boiling point of the solvent, while avoiding solvent loss, improving the applicability of the reactor, and ensuring the yield rate of the finished reaction product.

[0004] To achieve this object, the present invention adopts the following technical solutions: a reactor, comprising a reactor body, a heating device and a pressure control device, a stirring paddle is provided inside the reactor body, a heating jacket is provided on the outer peripheral wall of the reactor body, and an exhaust port is provided on the top of the reactor body; the heating device comprises a ventilation component and a heating component, the ventilation component is arranged in the reactor body and opposite to the stirring paddle, the heating component is connected to the ventilation component and can provide heated inert gas to the ventilation component; the pressure control device comprises a condensation component and a pressure relief valve, and the two ends of the condensation component are respectively connected to the exhaust port and the pressure relief valve.

[0005] Preferably, the condensation assembly includes a first condenser tube, which is provided with a first outer tube and a first inner tube for the flow of refrigerant, and the first outer tube is communicated with the exhaust port and connected to the pressure relief valve pipeline.

[0006] Preferably, the condensation assembly also includes a second condenser, which is located between the first condenser and the pressure relief valve. The second condenser includes a second outer tube and a second inner tube for the flow of refrigerant, and the second inner tube is connected to the first outer tube and the pressure relief valve respectively.

[0007] Preferably, the wall thickness of the first outer tube and the second inner tube are both greater than 1.5 mm.

[0008] Preferably, the pressure control device further comprises a pressure detection component, and the pressure detection component is connected between the pressure relief valve and the condensation assembly.

[0009] Preferably, the heating assembly includes a heating tube and a heater, the kettle body is provided with a mounting hole, one end of the heating tube is connected to an external inert gas source, and the other end is passed through the mounting hole and is detachably connected to the ventilation assembly, and the heater is connected to the heating tube to heat the inert gas.

[0010] Preferably, the heating device further comprises a non-return member, which is provided on the ventilation assembly or the heating tube, and is used to separate the internal space of the kettle body and the heating tube.

[0011] Preferably, the ventilation assembly includes an air diffuser plate, the heating pipe is provided with a connecting portion, the connecting portion is connected to a detachable pressure cover, and a gap for installing the air diffuser plate is formed between the pressure cover and the connecting portion.

[0012] Preferably, the ventilation component is provided with a plurality of air outlet portions on the side facing the stirring paddle, and the plurality of air outlet portions are arranged at intervals along the radial direction of the ventilation component, and the air outlet portion includes a plurality of air outlet holes arranged at intervals along the circumferential direction of the ventilation component, and the spacing between the plurality of air outlet holes corresponding to the air outlet portion in the circumferential direction of the ventilation component gradually decreases along the radial direction of the ventilation component from the edge of the ventilation component to the center of the ventilation component; or, the aperture of the plurality of air outlet holes corresponding to the air outlet portion gradually increases along the radial direction of the ventilation component from the edge of the ventilation component to the center of the ventilation component.

[0013] Preferably, the pressure relief valve is connected to a gas processing device, and the gas processing device is used to absorb the reaction gas passing through the condensation component and the pressure relief valve.

[0014] The beneficial effects of the present invention are as follows: by setting up a ventilation component, the ventilation component can pass heated inert gas toward the stirring paddle in the kettle body, thereby heating the central area of ​​the kettle body. The ventilation component and the heating sleeve clamp cooperate to ensure that the reactor is heated evenly, which is beneficial to the uniform heating of the solvent, making the particle size distribution of the microspheres of the reaction polymerization narrower, and ensuring the yield rate of the finished reaction product. By setting up a pressure control device, after the high-temperature steam and high-temperature inert gas formed by the solvent enter the condensation component, the condensation component can cool the solvent with a lower boiling point and allow the solvent to flow back into the kettle body, and the inert gas leaves the kettle body through the pressure relief valve, avoiding solvent loss while maintaining a constant pressure inside the kettle body, so that the inside of the kettle body can reach a reaction temperature that conventional reactors cannot reach, meeting the temperature conditions for dispersed polymerization that conventional reactors cannot reach, and effectively improving the applicability of the kettle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the reactor of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the reactor of the utility model;

[0017] Figure 3 It is a structural diagram of the condensation component of the utility model;

[0018] Figure 4 This is a structural diagram of the anti-return component of the utility model;

[0019] Figure 5 This is a top view of a ventilation assembly according to an embodiment of the present invention;

[0020] Figure 6 It is a top view of a ventilation assembly according to another embodiment of the present invention.

[0021] In the picture:

[0022] 100, kettle body; 110, stirring paddle; 120, exhaust port;

[0023] 200, heating device; 210, ventilation assembly; 211, air outlet; 212, sealing ring; 220, heating assembly; 221, heating tube; 2211, connecting portion; 222, heater; 223, gland; 230, check member; 231, U-shaped tube; 232, plug;

[0024] 300, pressure control device; 310, condensation assembly; 311, first condenser; 3111, first outer tube; 3112, first inner tube; 312, second condenser; 3121, second outer tube; 3122, second inner tube; 320, pressure relief valve. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0026] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0029] Reference Figure 1 and Figure 2 As shown in the figure (for the convenience of the drawing, the relevant structure of the pressure control device 300 has been simplified), a reactor provided according to an embodiment of the present invention includes a reactor body 100, a heating device 200 and a pressure control device 300. The reactor body 100 is vertical, and a rotatable stirring paddle 110 is provided at the center of the interior of the reactor body 100. The stirring paddle 110 is connected to an external motor and can maintain a stirring speed of 0-2000 rpm. The outer peripheral wall of the reactor body 100 is provided with a heating jacket, and the inner peripheral wall is provided with a corrosion-resistant and high-temperature resistant lining. The top of the reactor body 100 is provided with an exhaust port 120, and the exhaust port 120 is located on one side of the stirring shaft. Optionally, the material of the reactor body 100 is a metal part resistant to high temperature and high pressure, the heating temperature of the heating jacket is between 0-300°C, and the upper pressure limit of the reactor body 100 can be 10MPa.

[0030] The heating device 200 includes a vent assembly 210 and a heating assembly 220. The vent assembly 210 is disposed within the kettle body 100 and below the stirring paddle 110. The vent assembly 210 and the stirring paddle 110 are disposed opposite each other, that is, the vent assembly 210 is disposed downwardly toward the stirring paddle 110. The heating assembly 220 is connected to the vent assembly 210 and an inert gas source, respectively, so that the heating assembly 220 can provide heated inert gas to the vent assembly 210. Optionally, the vent assembly 210 can be configured as a tubular, disc-shaped, or showerhead structure having multiple through-holes, which will not be described in detail here.

[0031] The pressure control device 300 includes a condensation component 310 and a pressure relief valve 320. The two ends of the condensation component 310 are respectively connected to the exhaust port 120 and the pressure relief valve 320. The condensation component 310 is used to separate the solvent vapor and the inert gas passing through the exhaust port 120 and to cool the solvent vapor and reflux it.

[0032] For organic solvent polymerization reactions, the commonly used jacketed reactors still have the problem of uneven heating. The temperature of the edge in contact with the heating interlayer is higher, and the temperature tends to decrease towards the center, which can easily lead to differences in the reaction efficiency of the polymerization reaction, and ultimately lead to uneven and too wide distribution of polymer particles, affecting the quality of the reaction products.

[0033] It can be understood that by providing the ventilation component 210, the ventilation component 210 can pass the heated inert gas toward the stirring paddle 110 in the kettle body 100, thereby heating the central area of ​​the kettle body 100. The ventilation component 210 and the heating jacket clamp cooperate to ensure that the reactor is heated evenly, which is conducive to the uniform heating of the solvent, making the particle size distribution of the reaction polymerized microspheres narrower, and ensuring the yield rate of the reaction product.

[0034] By setting up the pressure control device 300, after the high-temperature steam and high-temperature inert gas formed by the solvent enter the condensation component 310, the condensation component 310 can cool the solvent with a lower boiling point and allow the solvent to flow back into the kettle body 100, and the inert gas leaves the kettle body 100 through the pressure relief valve 320, thereby avoiding solvent loss while maintaining the internal pressure of the kettle body 100 constant. Under the premise that the solvent concentration remains basically unchanged, the reaction temperature inside the kettle body 100 can reach a reaction temperature that cannot be reached by conventional reactors, meeting the temperature conditions for dispersed polymerization that cannot be reached by conventional reactors, and effectively improving the applicability of the kettle body 100.

[0035] Continue to refer to Figure 1 and Figure 2As shown, it can be understood that the heating assembly 220 includes a heating tube 221 and a heater 222. The kettle body 100 is provided with a mounting hole. One end of the heating tube 221 is connected to an external inert gas source, and the other end is passed through the mounting hole and detachably connected to the ventilation assembly 210. The heater 222 is connected to the heating tube 221 to heat the inert gas. Optionally, the heater 222 can be a heating wire provided on the outer peripheral wall of the heating tube 221, or a heating furnace for the heating tube 221 to pass through, etc., which will not be described in detail here.

[0036] It should be noted that the mounting hole can be opened at the bottom end of the kettle body 100, so that the heating tube 221 passes through the mounting hole from the bottom of the kettle body 100 into the interior of the kettle body 100, which is convenient for the arrangement of the heating component 220; the mounting hole can also directly use the original hole and groove structure on the top end cover of the kettle body 100, such as the feeding port, the detection hole, etc., so that the heating tube 221 passes through the existing hole and groove structure from the top of the kettle body 100 into the interior of the kettle body 100, thereby eliminating the need to modify the existing reactor structure and reducing the reactor assembly cost.

[0037] Furthermore, the pressure relief valve 320 is connected to a gas treatment device. The gas treatment device is used to absorb the reaction gas passing through the condensation assembly 310 and the pressure relief valve 320. Optionally, the gas treatment device can be a container containing an acid or base solution capable of neutralizing the reaction solvent, an absorption tower, or an activated carbon absorption device, etc., which will not be described in detail here.

[0038] During continuous operation of the reactor, a small amount of monomer gas (solvent vapor) may escape from the condensation assembly 310 and the pressure relief valve 320, causing resource waste, environmental pollution, and even safety accidents. By installing a gas treatment device, the gas treatment device can absorb the uncooled reflux monomer gas, improving the environmental friendliness and safety of the reactor.

[0039] Reference Figure 1 and Figure 3 As shown, it can be understood that the condensation assembly 310 includes a first condenser tube 311, which is provided with a first outer tube 3111 and a first inner tube 3112. The first inner tube 3112 is disposed inside the first outer tube 3111. The inlet and outlet of the first inner tube 3112 respectively pass through the side wall of the first outer tube 3111 and communicate with the refrigerant, so that the first inner tube 3112 can cool the solvent vapor inside the first outer tube 3111 and outside the first inner tube 3112. The first inner tube 3112 has a serpentine shape, that is, the first condenser tube 311 is a serpentine condenser with refrigerant circulating inside. The first outer tube 3111 is in communication with the exhaust port 120 and is connected to the pressure relief valve 320 pipeline.

[0040] After the high-temperature solvent vapor enters the first condenser tube 311, it is cooled in the first outer tube 3111 under the action of the refrigerant in the first inner tube 3112 and refluxed into the kettle body 100. Setting the first condenser tube 311 as a serpentine condenser with refrigerant circulating within it can avoid the problem of liquid stagnation and reflux difficulty caused by the small aperture of the inlet (i.e., the solvent reflux port) of conventional serpentine condensers when a large amount of solvent vapor is cooled and refluxed, thereby effectively improving the reflux efficiency of the condensation assembly 310.

[0041] Continue to refer to Figure 1 and Figure 3 As shown, it can be understood that the condensing assembly 310 also includes a second condensing pipe 312, which is located between the first condensing pipe 311 and the pressure relief valve 320. The second condensing pipe 312 includes a second outer pipe 3121 for the flow of refrigerant and a second inner pipe 3122. The second inner pipe 3122 also has a serpentine shape, that is, the second condensing pipe 312 is a serpentine condensing pipe for external refrigerant circulation. The second inner pipe 3122 is connected to the first outer pipe 3111 and the pressure relief valve 320 respectively.

[0042] The second condenser 312 is set as a serpentine condenser for external circulation of refrigerant. The second inner tube 3122 of the second condenser 312 can cool the solvent vapor flowing through the first condenser 311, increase the cooling area of ​​the condensation component 310, completely liquefy the solvent vapor, and reduce solvent loss.

[0043] It should be noted that the first condenser tube 311 is tilted relative to the top of the kettle body 100, and the second condenser tube 312 is arranged at an angle to the first condenser tube 311. Under the premise of ensuring that the solvent liquid can quickly reflux, it is avoided that the first condenser tube 311 or the second condenser tube 312 is vertically arranged, the solvent flow rate in the condenser tube is too fast, and the condensation effect is not ideal. In addition, the inclined first condenser tube 311 and the second condenser tube 312 can be designed to be longer, further increasing the cooling area of ​​the condensation assembly 310 and improving the cooling efficiency of the condensation assembly 310.

[0044] Furthermore, the wall thickness of the first outer tube 3111 and the second inner tube 3122 are both greater than 1.5 mm.

[0045] The solvent vapor flowing into the first outer tube 3111 or the second inner tube 3122 has a higher pressure after being heated by the heating device 200. Setting the wall thickness of the first outer tube 3111 and the second inner tube 3122 to above 1.5 mm can ensure the pressure resistance of the first outer tube 3111 and the second inner tube 3122, prevent the first condenser 311 or the second condenser 312 from bursting, and improve the safety of use of the condensation component 310.

[0046] Furthermore, the pressure control device 300 also includes a pressure detection component. Specifically, the pressure detection component can be configured as a pressure sensor with an instrument panel. The pressure detection component is connected between the pressure relief valve 320 and the condensation component 310, and the detection end of the pressure detection component is set toward the outlet of the condensation component 310 (that is, the outlet of the second inner tube 3122 of the second condensation tube 312).

[0047] By setting up a pressure detection component, it is convenient for the user to check the outlet pressure of the kettle body 100 at the pressure relief valve 320 in real time, and then it is convenient for the user to subsequently adjust the internal pressure of the kettle body 100 by controlling the temperature of the heating device 200, so that the appropriate temperature field and pressure are maintained in the kettle body 100 to ensure reaction efficiency, thereby effectively improving the user experience.

[0048] Reference Figure 4 As shown, it can be understood that the heating device 200 further includes a check member 230 , which is disposed on the ventilation assembly 210 or the heating tube 221 . The check member 230 is used to separate the internal space of the kettle body 100 and the heating tube 221 .

[0049] Optionally, the anti-return member 230 can be configured as a flip cover provided on the ventilation component 210, the flip cover corresponds one-to-one to the through holes on the ventilation component 210 and is hinged to the ventilation component 210. When the heating component 220 introduces inert gas into the ventilation component 210, the inert gas can flush open the flip cover, thereby heating the solvent and solute at the center of the kettle body 100. When the heating component 220 is closed, the flip cover flips over under the action of gravity and covers the air outlet, thereby closing the heating tube 221.

[0050] The anti-return member 230 can also be configured with a U-shaped tube 231 connected to the heating tube 221 and a plug 232 arranged in the heating tube 221. The plug 232 is located on one side of the U-shaped tube 231 and can move in the vertical direction. The heating tube 221 forms an accommodating space for accommodating the plug 232 above the plug 232. The heating tube 221 is also provided with a block to prevent the plug 232 from falling. When the heating component 220 introduces inert gas toward the ventilation component 210, the inert gas can push the plug 232 and then enter the ventilation component 210 through the U-shaped tube 231. When the heating component 220 is closed, the plug 232 falls onto the block under the action of gravity, thereby separating the internal space of the kettle body 100 and the heating tube 221. The U-shaped tube 231 can prevent the material in the kettle body 100 from flowing back into the heating tube 221.

[0051] By setting up the anti-return part 230, the anti-return part 230 can prevent the solute solvent in the kettle body 100 from entering the heating tube 221 to cause pollution and blockage, or even affect the external gas source, without affecting the ventilation component 210 to receive the hot air from the heating device 200, thereby effectively improving the structural rationality of the heating device 200 and extending the service life of the heating tube 221.

[0052] Reference Figure 5 As shown, it can be understood that a plurality of air outlet portions 211 are provided on the side of the ventilation component 210 facing the stirring paddle 110, and the plurality of air outlet portions 211 are arranged at intervals along the radial direction of the ventilation component 210. The air outlet portion 211 includes a plurality of air outlet holes arranged at intervals along the circumference of the ventilation component 210. In other words, the air outlet portion 211, i.e., a plurality of air outlet holes whose centers are located on the same circumference, points from the edge of the ventilation component 210 to the center of the ventilation component 210 along the radial direction of the ventilation component 210, and the spacing of the air outlet holes corresponding to the air outlet portion 211 in the circumferential direction of the ventilation component 210 gradually decreases.

[0053] The closer to the center of the vent assembly 210, the smaller the spacing between the multiple air outlet holes on the same circumference, and the greater the distribution density. This results in the highest heating efficiency at the center of the vent assembly 210, and the heat dissipation efficiency of the vent assembly 210 gradually decreases radially toward the edge. This prevents the vent assembly 210 and the heating jacket from simultaneously heating the area near the heating jacket within the kettle 100, which would affect the temperature distribution within the kettle 100. This further improves the uniformity of the temperature distribution within the kettle 100 and enhances the heating efficiency of the vent assembly 210.

[0054] Reference Figure 6 As shown, along the radial direction of the ventilation component 210 from the edge of the ventilation component 210 to the center of the ventilation component 210, the aperture of the air outlet gradually increases, thereby further optimizing the structure of the ventilation component 210 and ensuring that the kettle body 100 is heated evenly.

[0055] Reference Figure 1 As shown, it is understood that the ventilation assembly 210 includes a diffuser plate with a large air outlet area and uniform heating. The heating pipe 221 is provided with a connecting portion 2211 that matches the shape of the diffuser plate. The connecting portion 2211 is connected to a detachable gland 223. Optionally, the gland 223 and the connecting portion 2211 can be detachably connected by means of screwing, snapping, or sleeve connection, which will not be further described here.

[0056] A gap is formed between the gland 223 and the connection portion 2211 for mounting the vent assembly 210. Optionally, two sealing rings 212 are vertically spaced apart between the gland 223 and the connection portion 2211, and the two sealing rings 212 abut against two sides of the vent assembly 210 respectively.

[0057] By providing a gland, the diffuser disc is compressed between gland 223 and connection portion 2211. This improves the ease of assembly and removal of vent assembly 210 while ensuring stable installation of vent assembly 210, making it easier for users to replace vent assemblies 210 to accommodate different reactions, effectively improving the practicality of kettle 100. Furthermore, the provision of sealing ring 212 prevents solvent from the reactor from seeping into heating tube 221, ensuring a tight seal between gland 223 and connection portion 2211.

[0058] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Reactor, characterized in that: include: A kettle body (100) is provided with a stirring paddle (110) inside, a heating jacket is provided on the outer peripheral wall of the kettle body (100), and an exhaust port (120) is provided at the top end of the kettle body (100); The heating device (200) comprises a ventilation component (210) and a heating component (220), wherein the ventilation component (210) is arranged in the kettle body (100) and is disposed opposite to the stirring paddle (110), and the heating component (220) is connected to the ventilation component (210) and can provide heated inert gas to the ventilation component (210); The pressure control device (300) comprises a condensation component (310) and a pressure relief valve (320), wherein two ends of the condensation component (310) are respectively connected to the exhaust port (120) and the pressure relief valve (320).

2. The reactor according to claim 1, characterized in that The condensation assembly (310) includes a first condensation tube (311), wherein the first condensation tube (311) is provided with a first outer tube (3111) and a first inner tube (3112) for the flow of refrigerant, wherein the first outer tube (3111) is communicated with the exhaust port (120) and is connected to the pressure relief valve (320) pipeline.

3. The reactor according to claim 2, characterized in that The condensation assembly (310) also includes a second condensation pipe (312), which is located between the first condensation pipe (311) and the pressure relief valve (320), and the second condensation pipe (312) includes a second outer pipe (3121) and a second inner pipe (3122) for the flow of refrigerant, and the second inner pipe (3122) is respectively connected to the first outer pipe (3111) and the pressure relief valve (320).

4. The reactor according to claim 3, characterized in that The wall thickness of the first outer tube (3111) and the second inner tube (3122) are both greater than 1.5 mm.

5. The reactor according to any one of claims 1 to 4, characterized in that: The pressure control device (300) further comprises a pressure detection component, wherein the pressure detection component is connected between the pressure relief valve (320) and the condensation component (310).

6. The reactor according to any one of claims 1 to 4, characterized in that: The heating assembly (220) comprises a heating tube (221) and a heater (222); the kettle body (100) is provided with a mounting hole; one end of the heating tube (221) is connected to an inert gas source; the other end is passed through the mounting hole and is detachably connected to the ventilation assembly (210); the heater (222) is connected to the heating tube (221) to heat the inert gas.

7. The reactor according to claim 6, characterized in that The heating device (200) further comprises a non-return member (230), wherein the non-return member (230) is arranged on the ventilation assembly (210) or the heating pipe (221), and the non-return member (230) is used to separate the internal space of the kettle body (100) and the heating pipe (221).

8. The reactor according to claim 6, characterized in that The ventilation assembly comprises an air diffuser plate, the heating pipe (221) is provided with a connecting portion (2211), the connecting portion (2211) is connected to a detachable pressure cover (223), and a gap for installing the air diffuser plate is formed between the pressure cover (223) and the connecting portion (2211).

9. The reactor according to any one of claims 1 to 4, characterized in that: The ventilation component (210) is provided with a plurality of air outlet portions (211) on a side facing the stirring paddle (110), and the plurality of air outlet portions (211) are arranged at intervals along the radial direction of the ventilation component (210), and the air outlet portion (211) includes a plurality of air outlet holes arranged at intervals along the circumference of the ventilation component (210), and along the radial direction of the ventilation component (210) from the edge of the ventilation component (210) to the center of the ventilation component (210), the spacing of the plurality of air outlet holes corresponding to the air outlet portion (211) in the circumferential direction of the ventilation component (210) gradually decreases; or, Along the radial direction of the ventilation component (210) pointing from the edge of the ventilation component (210) to the center of the ventilation component (210), the apertures of the plurality of ventilation holes corresponding to the ventilation portion (211) gradually increase.

10. The reactor according to any one of claims 1 to 4, characterized in that: The pressure relief valve (320) is connected to a gas processing device, and the gas processing device is used to absorb the reaction gas passing through the condensation component (310) and the pressure relief valve (320).

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