Acrylonitrile styrene acrylate (ASA) sizing agent polymerization reaction device

Abstract

The utility model relates to the technical field of chemical reaction equipment, in particular to an ASA (Acrylonitrile Styrene Acrylate) sizing agent polymerization reaction device, which comprises a ground connecting seat, an overturning reaction container unit is arranged above the ground connecting seat, two ends of the overturning reaction container unit are respectively movably inserted into shaft seats at the tops of corresponding support frames through welding shafts on the outer side walls of the overturning reaction container unit, and the welding shafts are connected with the overturning reaction container unit. The bottom of the support frame is fixed at the top of the ground connecting seat, a total driving unit for driving the overturning reaction container unit to swing back and forth is arranged on one side of the support frame, and a stirring control mechanism is mounted at the top of the overturning reaction container unit. According to the utility model, the overturning reaction container unit is matched with the stirring control mechanism to work, and the reciprocating swing of the overturning reaction container unit is matched with the stirring action of the stirring control mechanism, so that reaction materials can be fully mixed in the reaction cavity, the reaction uniformity is greatly improved, the polymerization reaction of the ASA sizing agent is effectively promoted, and the production efficiency is improved. And the product quality and the production efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical reaction equipment technology, and in particular to an ASA sizing agent polymerization reaction device. Background Technology

[0002] ASA sizing agent is an in-sizing agent used in the papermaking industry. It is generally reacted under normal pressure or slightly above normal pressure, and a batch reactor is often used during the reaction.

[0003] Its structure mainly consists of a vessel body, a stirring device, a heating / cooling device, a feed inlet, and a discharge outlet. The vessel body, as the space where the reaction takes place, is generally a closed cylindrical container.

[0004] For example, patent application number CN202220457509.9 discloses a high-efficiency reaction vessel for chemical production. Its main structure includes a main vessel body with a feed inlet at the top for feeding materials. The vessel is equipped with a stirring shaft and stirring blades, which are driven by a motor to stir the materials. The vessel body has a jacket for heating or cooling, and a discharge port at the bottom.

[0005] As can be seen from its structural description, when it is actually applied to the polymerization reaction of ASA sizing agent, it has the following disadvantages: it only relies on the second motor to drive the stirring rack, and the stirring method is singular; in the polymerization reaction of sizing agent, materials such as α-olefins and maleic anhydride need to be fully mixed to ensure that the reaction proceeds uniformly. This kind of reactor is difficult to ensure that the materials are uniformly dispersed in the complex reaction system, which limits the reaction rate and product uniformity.

[0006] Therefore, it is necessary to design a reactor device that can be used for the polymerization reaction of ASA sizing agent and improve the reaction efficiency. Utility Model Content

[0007] To solve one of the aforementioned technical problems, the present invention employs the following technical solution: an ASA sizing agent polymerization reaction device, comprising a base, a tilting reaction vessel unit disposed above the base, both ends of the tilting reaction vessel unit being movably inserted into the corresponding support frame top bearings via welding shafts on their outer side walls, the bottom of the support frame being fixed to the top of the base, a main drive unit for driving the tilting reaction vessel unit to reciprocate on one side of the support frame, a stirring control mechanism being installed on the top of the tilting reaction vessel unit, the inner end of the stirring control mechanism extending into the interior of the tilting reaction vessel unit and used for stirring the internal reaction materials, and a limiting member being fixedly installed on the base in the middle of the front side of the tilting reaction vessel unit.

[0008] Based on any of the above technical solutions, a further optimization is made as follows: the inverted reaction vessel unit includes a reaction chamber, heating chambers are welded at intervals to the outside of the reaction chamber, an annular heating oil chamber is provided between the heating chamber and the reaction chamber, an electric heater is installed at the bottom of the heating oil chamber, the end of the electric heater extends to the outside of the heating chamber and is used to connect to an external power controller, the inside of the heating oil chamber is filled with heat-conducting oil, several high-temperature resistant temperature sensors are installed on the inner wall of the heating chamber in the heating oil chamber, each of the temperature sensors is connected to the signal of the external controller, a protective component is provided on the outside of the heating chamber, a welding shaft is welded to the outer side walls of both sides of the protective component, a reaction chamber is provided inside the reaction chamber, a sealing cover is detachably fixedly installed at the opening of the reaction chamber, the sealing cover seals the heating chamber and the top of the reaction chamber, and the working end of the stirring control mechanism extends into the inside of the reaction chamber and is used to stir the reaction materials inside.

[0009] Based on any of the above technical solutions, a further optimization is made as follows: the protective component includes a heat-insulating outer cylinder that is spaced out and fixed to the outside of the heating chamber, the space between the heat-insulating outer cylinder and the heating chamber is used to place high-temperature resistant heat-insulating material, and the sealing cap seals the top of the heat-insulating outer cylinder.

[0010] Based on any of the above technical solutions, a further optimization is made as follows: the stirring control mechanism includes a fixed cylinder fixedly installed at the top center of the sealing cover, a stirring motor fixedly installed at the top of the fixed cylinder, a reaction stirrer fixedly installed at the end of the motor shaft of the stirring motor, the working end of the reaction stirrer being movable and sealed to the interior of the reaction chamber, and observation holes being provided on both side walls of the fixed cylinder.

[0011] Based on any of the above technical solutions, a further optimization is made as follows: a feed bend connector and a discharge bend connector are installed on the end face of the sealing cover at the upper and lower parts of the fixed cylinder. The interior of the feed bend connector and the discharge bend connector are connected to the interior of the reaction chamber. A material pipe with a control valve is installed at the end of the feed bend connector and the discharge bend connector.

[0012] Based on any of the above technical solutions, a further optimization is made as follows: the reaction stirrer includes a stirring shaft coaxially mounted inside the cylindrical reaction chamber, and a plurality of stirring teeth are fixedly installed at intervals along the length direction on the outer side wall of the stirring shaft.

[0013] Based on any of the above technical solutions, a further optimization is made as follows: a plurality of cutting holes are provided at intervals along the length direction on the surface of each of the stirring teeth, and each of the cutting holes is used to cut the bubbles generated in the reactants during rotation.

[0014] Based on any of the above technical solutions, a further optimization is made as follows: the main drive unit includes a main drive motor fixedly installed on the top of the ground base, and a transmission component is installed at the output shaft end of the main drive motor. The power output end of the transmission component is coaxially fixedly connected to the welding shaft at its corresponding position.

[0015] Based on any of the above technical solutions, a further optimization is made: the transmission component adopts a toothed belt pulley transmission structure.

[0016] Based on any of the above technical solutions, a further optimization is made as follows: the limiting component includes a telescopic electric cylinder vertically fixed to the top of the connecting base, and a positioning switch is installed on the top of the telescopic electric cylinder. When the outer wall of the heat insulation outer cylinder triggers the positioning switch, the main drive motor is linked to reverse the set angle.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model, by setting up a flipping reaction container unit and a stirring control mechanism to work together, the reciprocating swing of the flipping reaction container unit, combined with the stirring action of the stirring control mechanism, can fully mix the reactants in the reaction chamber, greatly improving the uniformity of the reaction, effectively promoting the polymerization reaction of ASA sizing agent, and thus improving product quality and production efficiency.

[0019] 2. This invention features a heating oil chamber between the heating chamber and the reaction chamber, equipped with an electric heater and a temperature sensor, enabling precise control of the reaction temperature. This precise temperature control ensures the reaction proceeds in a suitable temperature environment, helps stabilize the reaction process, reduces reaction anomalies caused by temperature fluctuations, and thus improves product stability and consistency.

[0020] 3. This invention features cutting holes on the surface of the stirring teeth, which effectively cut air bubbles generated in the reactants during stirring. This not only avoids the adverse effects of air bubbles on material mixing and reaction efficiency.

[0021] 4. This utility model adopts a toothed belt pulley transmission structure as the transmission component of the main drive unit. Utilizing its characteristics of smooth transmission, low noise, high transmission efficiency, and strong overload protection, it provides stable and reliable power to the tilting reaction vessel unit. This ensures the normal operation of the device, extends the equipment's service life, and protects the equipment in case of emergencies, reducing maintenance costs and the risk of production interruption.

[0022] 5. The limiting component in this invention, through the cooperation of a telescopic electric cylinder and a position switch, controls the reverse rotation of the main drive motor, precisely limiting the swing range of the tilting reaction vessel unit. This design effectively avoids safety issues such as collisions and damage that may be caused by excessive swinging of the equipment, ensuring the safety of equipment operation. It also helps optimize the reaction process, making the residence time of reactants at different positions more reasonable and improving the reaction effect. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0026] Figure 3 This is a schematic diagram of the left-side structure of this utility model.

[0027] Figure 4 This is a partial internal structure diagram on the right side of this utility model.

[0028] 1. Base; 2. Support frame; 3. Reaction chamber; 4. Heating chamber; 5. Heating oil chamber; 6. Electric heater; 7. Temperature sensor; 8. Welding shaft; 9. Reaction chamber; 10. Sealing cover; 11. Heat-insulating outer cylinder; 12. Fixing cylinder; 13. Stirring motor; 14. Observation hole; 15. Feed elbow joint; 16. Discharge elbow joint; 17. Control valve; 18. Material pipe; 19. Stirring shaft; 20. Stirring teeth; 21. Cutting hole; 22. Main drive motor; 23. Transmission components; 24. Telescopic electric cylinder; 25. Position switch. Detailed Implementation

[0029] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are therefore merely examples and should not be construed as limiting the scope of protection of the present utility model. The specific structure of the present utility model is as follows: Figures 1-4 As shown in the image.

[0030] Example 1: An ASA sizing agent polymerization reactor includes a base 1. A tilting reaction vessel unit is provided above the base 1. Both ends of the tilting reaction vessel unit are movably inserted into the bearing seats on the top of the corresponding support frame 2 via welding shafts 8 on their outer side walls. The bottom of the support frame 2 is fixed to the top of the base 1. A main drive unit for driving the tilting reaction vessel unit to swing back and forth is provided on one side of the support frame 2. A stirring control mechanism is installed on the top of the tilting reaction vessel unit. The inner end of the stirring control mechanism extends into the interior of the tilting reaction vessel unit and is used to stir the reaction materials inside. A limiting member is fixedly installed on the base 1 at the middle of the front side of the tilting reaction vessel unit.

[0031] When this device is working, the main drive unit drives the tilting reaction vessel unit to swing back and forth around the welding shaft 8 within the support frame 2 within a set angle range. During the external swinging process, the stirring control mechanism stirs the reaction material in the tilting reaction vessel unit, and the limiting component is used to limit the swinging position of the tilting reaction vessel unit.

[0032] By reciprocating the oscillation of the reaction vessel unit and stirring the internal stirring control mechanism, the reactants can be mixed more evenly, thus improving the reaction effect.

[0033] The base 1 supports the entire device; the tilting reaction vessel unit is the storage structure for the reaction; the main drive unit provides power to make the tilting reaction vessel unit swing; the stirring control mechanism promotes the mixing of the reactants; and the limiting components ensure that the tilting reaction vessel unit swings within a reasonable range, ensuring the safe operation of the equipment.

[0034] In the polymerization reaction of ASA sizing agent, the reciprocating oscillation of the inverted reaction vessel unit can simulate a special reaction environment, allowing the reactants to come into contact at different angles. This helps to break the local concentration differences that may form during the reaction process and avoid incomplete reaction caused by uneven material distribution. This oscillation method may also make it easier for small molecules generated by the reaction to leave the reaction system, which is beneficial to improving the reaction yield.

[0035] Based on any of the above technical solutions, a further optimization is made as follows: the inverted reaction vessel unit includes a reaction chamber 3, with heating chambers 4 welded at intervals to the outside of the reaction chamber 3. An annular heating oil chamber 5 is provided between the heating chamber 4 and the reaction chamber 3. An electric heater 6 is installed at the bottom of the heating oil chamber 5, with the end of the electric heater 6 extending to the outside of the heating chamber 4 and used to connect to an external power controller. The heating oil chamber 5 is filled with heat-conducting oil. Several high-temperature resistant temperature sensors 7 are installed on the inner wall of the heating chamber 4 in the heating oil chamber 5. Each temperature sensor 7 is connected to an external controller. A protective component is provided on the outside of the heating chamber 4. Welding shafts 8 are welded coaxially on the outer side walls of the protective component. A reaction chamber 9 is provided inside the reaction chamber 3. A sealing cover 10 is detachably fixedly installed at the opening of the reaction chamber 9. The sealing cover 10 seals the top of the heating chamber 4 and the reaction chamber 3. The working end of the stirring control mechanism extends into the inside of the reaction chamber 9 and is used to stir the reaction materials inside.

[0036] The electric heater 6 uses an existing product to heat the heat transfer oil in the heating oil chamber 5. The heat transfer oil transfers heat to the reaction chamber 3. The temperature of the heating oil chamber 5 is monitored in real time by the temperature sensor 7, and the signal is fed back to the existing external controller to control the operation of the electric heater 6 and ensure that the temperature in the reaction chamber 3 is stable. The stirring control mechanism stirs the materials in the reaction chamber 9 to promote the reaction. Heating and temperature control are existing technologies.

[0037] The dual-layer structure design of the heating chamber 4 and the reaction chamber 3 utilizes heat transfer oil for uniform heating, which can effectively control the reaction temperature and improve the stability and controllability of the reaction; the removable sealing cover 10 facilitates the cleaning and maintenance of the interior of the reaction chamber 3.

[0038] Based on any of the above technical solutions, a further optimization is made as follows: the protective component includes a heat-insulating outer cylinder 11 that is spaced out and fixed to the outside of the heating chamber 4, the space between the heat-insulating outer cylinder 11 and the heating chamber 4 is used to place high-temperature resistant heat-insulating material, and the sealing cap 10 seals the top of the heat-insulating outer cylinder 11.

[0039] In the polymerization reaction of ASA sizing agent, since the reaction is sensitive to temperature, the combination of heating oil chamber 5 and temperature sensor 7 can not only accurately control the temperature, but also adjust the reaction rate and direction by controlling the slight fluctuations in temperature during the reaction process.

[0040] The heat-insulating outer cylinder 11 and the heat-insulating material together form a heat-insulating structure, which reduces the heat loss of the heating chamber 4 and keeps the temperature inside the reaction chamber 3 stable. The sealing cover 10 further seals the heat-insulating outer cylinder 11 and enhances the heat insulation effect.

[0041] In actual production environments, the thermal insulation structure not only reduces heat loss but also, to a certain extent, prevents moisture, dust, and other impurities from the external environment from corroding the heating chamber 4 and the reaction chamber 3. For the polymerization reaction of ASA sizing agent, moisture may affect the reaction process, while dust and other impurities may contaminate the reaction materials. This blocking effect of the thermal insulation components helps maintain the purity of the reaction environment and improve product quality.

[0042] Based on any of the above technical solutions, a further optimization is made as follows: the stirring control mechanism includes a fixed cylinder 12 fixedly installed at the top center of the sealing cover 10, a stirring motor 13 fixedly installed at the top of the fixed cylinder 12, a reaction stirrer fixedly installed at the end of the motor shaft of the stirring motor 13, the working end of the reaction stirrer being movable and sealed to the interior of the reaction chamber 9, and observation holes 14 being provided on both side walls of the fixed cylinder 12.

[0043] The stirring motor 13 drives the reaction stirrer to rotate, stirring the material in the reaction chamber 9. The observation hole 14 is used to check the operating status of the stirring motor 13.

[0044] Based on any of the above technical solutions, a further optimization is made as follows: a feed bend connector 15 and a discharge bend connector 16 are installed on the end face of the sealing cover 10 at the upper and lower parts of the fixed cylinder 12. The interiors of the feed bend connector 15 and the discharge bend connector 16 are connected to the interior of the reaction chamber 9. A material pipe 18 with a control valve 17 is installed at the end of the feed bend connector 15 and the discharge bend connector 16.

[0045] By controlling the control valves 17 on the feed bend joint 15 and the discharge bend joint 16, the feeding and discharging operations of the material are realized. The material enters the reaction chamber 9 through the feed pipe 18 and the feed bend joint 15, and is discharged through the discharge bend joint 16 after the reaction is completed.

[0046] During material discharge, the drive motor is controlled to tilt the entire tilting reaction vessel unit at an appropriate angle to facilitate rapid material discharge.

[0047] When the reaction device is reversed, properly controlling the swing position of the feed and discharge elbow joints 15 and 16 can make the material flow more smoothly in the reaction chamber 9 and avoid the material from being blocked in the pipe due to the reversal.

[0048] Based on any of the above technical solutions, a further optimization is made as follows: the reaction stirrer includes a stirring shaft 19 coaxially mounted inside the cylindrical reaction chamber 9, and a plurality of stirring teeth 20 are fixedly installed at intervals along the length direction on the outer side wall of the stirring shaft 19.

[0049] The stirring motor 13 drives the stirring shaft 19 to rotate, and the stirring teeth 20 on the stirring shaft 19 rotate accordingly, stirring the materials in the reaction chamber 9 to ensure thorough mixing. The design of the stirring teeth 20 increases the stirring area, improves the stirring effect, makes the materials mix more evenly, and promotes a more complete reaction.

[0050] In the polymerization reaction of ASA sizing agent, the stirring teeth 20, in addition to stirring the materials, can also play a certain role in dispersing the reactants during the stirring process. Since material agglomeration may occur during the ASA sizing agent reaction, the spacing and rotation of the stirring teeth 20 can break up the agglomerated materials, making them more evenly distributed within the reaction chamber 9. This ensures that the reaction takes place in a more uniform material environment, which helps to improve the consistency of product quality.

[0051] Example 2: Compared with Example 1, this example also includes the following technical features:

[0052] Based on any of the above technical solutions, a further optimization is made as follows: a plurality of cutting holes 21 are provided at intervals along the length direction on the surface of each of the stirring teeth 20, and each of the cutting holes 21 is used to cut the bubbles generated in the reaction material in the rotating state.

[0053] When the stirring teeth 20 rotate, the cutting holes 21 on the surface cut and break the bubbles generated in the reactants, allowing the gas inside the bubbles to escape and preventing the bubbles from affecting the mixing and reaction of the reactants.

[0054] The design of the cutting hole 21 can effectively eliminate the bubbles generated during the reaction, improve the uniformity of the reactants and the reaction efficiency, and avoid incomplete reaction or product quality problems caused by the presence of bubbles.

[0055] In the polymerization reaction of ASA sizing agent, the presence of air bubbles not only affects the reaction effect, but may also change the pressure distribution of the reaction system.

[0056] Based on any of the above technical solutions, a further optimization is made as follows: the main drive unit includes a main drive motor 22 fixedly installed on the top of the connecting base 1, and a transmission component 23 is installed at the output shaft end of the main drive motor 22. The power output end of the transmission component 23 is coaxially fixedly connected to the welding shaft 8 at its corresponding position.

[0057] After the main drive motor 22 starts, it transmits power to the welding shaft 8 through the transmission component 23, thereby driving the tilting reaction vessel unit to swing back and forth around the welding shaft 8.

[0058] Based on any of the above technical solutions, a further optimization is made: the transmission component 23 adopts a toothed belt pulley transmission structure.

[0059] The toothed belt pulley drive structure transmits the power of the main drive motor 22 to the welding shaft 8 through the meshing between the toothed belt and the pulley, thereby realizing the swinging of the overturning reaction vessel unit.

[0060] Based on any of the above technical solutions, a further optimization is made: the limiting component includes a telescopic electric cylinder 24 vertically fixed to the top of the connecting base 1, and a position switch 25 is installed on the top of the telescopic electric cylinder 24. When the outer wall of the heat insulation outer cylinder 11 triggers the position switch 25, the main drive motor 22 is linked to reverse the set angle.

[0061] When the overturning reaction vessel unit swings to a certain position, the outer wall of the heat-insulating outer cylinder 11 triggers the positioning switch 25. The positioning switch 25 transmits a signal to the existing external control system, which controls the telescopic electric cylinder 24 to move and links the main drive motor 22 to reverse the set angle, thereby limiting the swing range of the overturning reaction vessel unit.

[0062] Specific work process:

[0063] Preparation stage: The reactants for ASA sizing agent are conveyed through the feed pipe 18 with control valve 17 and the feed elbow joint 15 into the reaction chamber 9 of the reaction chamber 3. Heat transfer oil is pre-filled into the heating oil chamber 5, the electric heater 6 is connected to the external power controller, and the temperature sensor 7 is connected to the external controller signal to ensure normal operation.

[0064] High-temperature resistant insulation material is pre-installed between the heat-insulating outer cylinder 11 and the heating chamber 4, and the sealing cover 10 is installed to make the reaction device closed and ready.

[0065] Reaction stage: Start the main drive motor 22. The main drive motor 22 drives the welding shaft 8 of the tilting reaction vessel unit through the toothed belt pulley transmission component 23, causing the tilting reaction vessel unit to swing back and forth around the shaft.

[0066] At the same time, the stirring motor 13 in the stirring control mechanism is started, and the stirring motor 13 drives the stirring shaft 19 of the reaction stirrer to rotate. The stirring teeth 20 on the stirring shaft 19 stir and mix the materials in the reaction chamber 9.

[0067] During the mixing process, the cutting holes 21 on the surface of the stirring teeth 20 cut and break the air bubbles generated in the material, ensuring that the material is mixed evenly.

[0068] The electric heater 6 heats the heat transfer oil in the heating oil chamber 5, and the heat transfer oil transfers heat to the reaction chamber 3. The temperature sensor 7 monitors the temperature of the heating oil chamber 5 in real time and feeds the signal back to the external controller. The external controller controls the operation of the electric heater 6 according to the temperature signal to maintain a stable reaction temperature in the reaction chamber 3.

[0069] Operators can observe the rotation of the stirring shaft 19 through the observation holes 14 on both sides of the fixed cylinder 12 and adjust the stirring speed according to the actual situation.

[0070] Final stage: When the reaction is complete, open the control valve 17 on the discharge elbow joint 16, and the reaction products are discharged from the reaction device through the discharge elbow joint 16 and the feed pipe 18.

[0071] During the swinging process of the overturning reaction vessel unit, if the outer wall of the heat-insulating outer cylinder 11 triggers the limit switch 25 on the limit member, the limit switch 25 transmits a signal to the control system in the prior art. The control system then links the main drive motor 22 to reverse the set angle to prevent the overturning reaction vessel unit from swinging excessively.

[0072] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0073] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. An ASA sizing agent polymerization reaction apparatus, characterized by: The device includes a base, above which is a tilting reaction vessel unit. Both ends of the tilting reaction vessel unit are movably inserted into the bearing seats on the top of the corresponding support frame via welded shafts on their outer side walls. The bottom of the support frame is fixed to the top of the base. A main drive unit for driving the tilting reaction vessel unit to reciprocate is provided on one side of the support frame. A stirring control mechanism is installed on the top of the tilting reaction vessel unit. The inner end of the stirring control mechanism extends into the interior of the tilting reaction vessel unit and is used to stir the internal reaction materials. A limiting member is fixedly installed on the base in the middle of the front side of the tilting reaction vessel unit.

2. The ASA sizing polymerization reaction apparatus of claim 1, wherein: The inverted reaction vessel unit includes a reaction chamber, with heating chambers welded at intervals to the outside of the reaction chamber. An annular heating oil chamber is provided between the heating chamber and the reaction chamber. An electric heater is installed at the bottom of the heating oil chamber, with its end extending to the outside of the heating chamber and used to connect to an external power controller. The heating oil chamber is filled with heat-conducting oil. Several high-temperature resistant temperature sensors are installed on the inner wall of the heating chamber within the heating oil chamber, and each temperature sensor is signal-connected to an external controller. A protective component is provided on the outside of the heating chamber, and welding shafts are welded coaxially to the outer side walls of the protective component. A reaction chamber is provided inside the reaction chamber, and a sealing cover is detachably fixed at the opening of the reaction chamber, sealing the heating chamber and the top of the reaction chamber. The working end of the stirring control mechanism extends into the inside of the reaction chamber and is used to stir the reaction materials inside.

3. The ASA sizing polymerization reaction apparatus of claim 2, wherein: The protective component includes an insulated outer cylinder that is spaced out and fixed to the outside of the heating chamber. The space between the insulated outer cylinder and the heating chamber is used to place high-temperature resistant insulation material. The sealing cap seals the top of the insulated outer cylinder.

4. The ASA sizing polymerization reaction apparatus of claim 3, wherein: The stirring control mechanism includes a fixed cylinder fixedly installed at the top center of the sealing cover, a stirring motor fixedly installed at the top of the fixed cylinder, a reaction stirrer fixedly installed at the end of the motor shaft of the stirring motor, the working end of the reaction stirrer being movable and sealed to the interior of the reaction chamber, and observation holes being provided on the two side walls of the fixed cylinder.

5. The ASA sizing polymerization reaction apparatus of claim 4, wherein: A feed bend and a discharge bend are installed on the end face of the sealing cap at the upper and lower parts of the fixed cylinder. The inside of the feed bend and the discharge bend are connected to the inside of the reaction chamber. A material pipe with a control valve is installed at the end of the feed bend and the discharge bend.

6. The ASA sizing polymerization reaction apparatus of claim 5, wherein: The reaction stirrer includes a stirring shaft coaxially mounted inside the cylindrical reaction chamber, and a plurality of stirring teeth are fixedly installed at intervals along the length of the outer side wall of the stirring shaft.

7. The ASA sizing polymerization reaction apparatus of claim 6, wherein: A plurality of cutting holes are provided at intervals along the length of each of the stirring teeth, and each of the cutting holes is used to cut the bubbles generated in the reactants during rotation.

8. The ASA sizing polymerization reaction apparatus of claim 7, wherein: The main drive unit includes a main drive motor fixedly installed on the top of the ground base, and a transmission component is installed on the output shaft end of the main drive motor. The power output end of the transmission component is coaxially fixedly connected to the welding shaft at its corresponding position.

9. The ASA sizing polymerization reaction apparatus of claim 8, wherein: The transmission component adopts a toothed belt pulley transmission structure.

10. The ASA sizing polymerization reaction apparatus of claim 9, wherein: The limiting component includes a telescopic electric cylinder that is vertically fixed to the top of the ground base. A positioning switch is installed on the top of the telescopic electric cylinder. When the outer wall of the heat insulation outer cylinder triggers the positioning switch, the main drive motor is linked to reverse the set angle.

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