High-efficiency polymerization reactor for water-reducing agent production

Abstract

The utility model discloses a kind of efficient polymerization reactor for water-reducing agent production, including reactor and the stirring assembly in kettle cavity, stirring assembly top connects drive assembly. The extension rod of stirring assembly coincides with the central axis of reactor, extension rod is hinged with multiple stirring rods, stirring rod is radially symmetrical distribution, and reset spring is equipped between stirring rod and extension rod. Through central symmetrical layout and elastic adjusting structure, adaptive stirring is realized: stirring range is concentrated at low speed, stirring rod is spread out under the action of centrifugal force at high speed, cooperate with limiting rod constraint, form whole reactor three-dimensional stirring flow field, eliminate mixing dead angle. Four stirring rods 90 ° symmetrical distribution and limiting structure synergistic inhibition vibration, ensure stable operation. The utility model has the advantages of efficient mixing, process adaptability and reliable operation, etc., is applicable to the premixing, polymerization etc. link of water-reducing agent in kettle production.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, specifically to a high-efficiency polymerization reaction vessel for the production of water-reducing agents. Background Technology

[0002] Water-reducing agents are concrete admixtures that can reduce the amount of mixing water while maintaining the slump of concrete at a basically constant level.

[0003] During the production process, raw materials and ingredients need to be added to the reactor and stirred. The thoroughness of stirring directly affects the reaction efficiency. For example, the utility model patent with publication number CN222427972U proposes an improvement: by designing the stirring rod to be offset from the axis of the reactor, the mixing uniformity of the raw materials is enhanced. However, this eccentric stirring method may lead to uneven distribution of liquid in the reactor, which in turn aggravates the shaking and vibration of the reactor, posing a safety hazard. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency polymerization reactor for the production of water-reducing agents.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A high-efficiency polymerization reactor for the production of water-reducing agents includes a reactor and a stirring assembly disposed inside the reactor cavity. The top of the stirring assembly is provided with a driving assembly located on the outer surface of the reactor. The extension rod of the stirring assembly coincides with the central axis of the reactor. One end of the extension rod is hinged to the stirring rod. A return spring is provided between the stirring rod and the extension rod. There are multiple stirring rods, which are radially symmetrically distributed about the central axis.

[0006] Preferably, there are four stirring rods, and the included angle between adjacent stirring rods is equal.

[0007] Preferably, one end of the stirring rod is hinged to the end of the stirring rod via a support.

[0008] Preferably, the other end of the stirring rod can extend to both the top of the inner side of the vessel cavity and the bottom of the inner side of the vessel cavity.

[0009] Preferably, a limiting rod is provided between the stirring rod and the extension rod, and the limiting rod passes through the stirring rod.

[0010] Preferably, the drive assembly includes a motor, a coupling, and a bracket, with the coupling located within the channel of the reactor.

[0011] Preferably, one end of the coupling is connected to the motor output shaft, and the other end is connected to the extension rod. The motor is mounted above the channel of the reactor via a bracket.

[0012] Preferably, the reactor is provided with a feed inlet and a discharge outlet.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through a centrally symmetrical stirring rod layout and a cross-shaped four-stirring rod design in the embodiment, combined with the elastic adjustment of the return spring, achieves adaptive stirring for different speeds. At low speeds, the stirring range is concentrated; at high speeds, the stirring rods extend outwards under centrifugal force. Combined with the safety constraint of the limiting rod, a three-dimensional stirring flow field covering the entire height of the vessel is formed, ensuring thorough mixing of materials. The design of the stirring rods extending to the top and bottom of the vessel cavity effectively eliminates the mixing dead zones present in traditional stirring, significantly improving mixing uniformity. The 90° symmetrical distribution of the four stirring rods balances the centrifugal forces, and the mechanical constraint of the limiting rod avoids structural interference that may occur during high-speed operation, greatly improving the operational stability of the equipment.

[0015] 2. By utilizing the elastic properties of the reset spring and the adjustable range of the limit rod, the stirring intensity can be automatically adjusted according to different material characteristics such as viscosity differences and process requirements such as reaction intensity, without the need to stop the machine for adjustment. The smooth transition capability from low speed to high speed allows the equipment to adapt to various process links in the production of water-reducing agents, including the needs of different stages such as raw material premixing and polymerization reaction. Attached Figure Description

[0016] Figure 1 is a perspective view of the entire embodiment;

[0017] Figure 2 is a perspective view of the reactor in this embodiment;

[0018] Figure 3 is a perspective view of the driving component and the stirring component in this embodiment;

[0019] Figure 4 shows this embodiment. Figure 3 A magnified view of a portion of the image.

[0020] In the diagram: 100, reactor; 100a, reactor cavity; 101, channel; 102, feed inlet; 103, discharge outlet; 200, drive assembly; 201, motor; 202, coupling; 203, support frame; 300, stirring assembly;

[0021] 301. Extension rod; 302. Stirring rod; 303. Return spring; 304. Support; 305. Limiting rod. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0023] Example 1

[0024] Please refer to Figure 1 to Figure 4 The present invention preferably provides the following technical solution: a high-efficiency polymerization reactor for the production of water-reducing agent, including a reactor 100 and a stirring assembly 300 disposed in the reactor cavity 100a of the reactor 100. The reactor 100 is provided with a feed port 102 for feeding and a discharge port 103 for discharging. The top of the stirring assembly 300 is provided with a driving assembly 200 and is located on the outer surface of the reactor 100. The extension rod 301 of the stirring assembly 300 coincides with the central axis of the reactor 100. One end of the extension rod 301 is hinged to the stirring rod 302. A return spring 303 is provided between the stirring rod 302 and the extension rod 301. There are multiple stirring rods 302 and they are radially symmetrically distributed about the central axis.

[0025] The drive assembly 200 includes a motor 201, a coupling 202, and a bracket 203. The coupling 202 is disposed within the channel 101 of the reactor 100. One end of the coupling 202 is connected to the output shaft of the motor 201, and the other end is connected to the extension rod 301. The motor 201 is mounted above the channel 101 of the reactor 100 via the bracket 203.

[0026] Specifically, the reactor 100 has a vessel cavity 100a for containing reactants. The reactor 100 has a feed inlet 102 at the top for adding raw materials and a discharge outlet 103 at the bottom for discharging reaction products. A stirring assembly 300 is located within the vessel cavity 100a and includes an extension rod 301 and multiple stirring rods 302. The extension rod 301 is arranged along the central axis of the reactor 100 to ensure stable stirring and reduce eccentric shaking. The stirring rods 302 are radially symmetrically distributed and connected to the extension rod 301 via hinges.

[0027] It can swing within a certain angle. The return spring 303 is located between the stirring rod 302 and the extension rod 301 to provide elastic return force during stirring, thereby enhancing the uniformity and adaptability of stirring. The drive assembly 200 includes a motor 201, a coupling 202 and a bracket 203. The coupling 202 passes through the channel 101 of the reactor 100, with one end connected to the output shaft of the motor 201 and the other end fixedly connected to the extension rod 301 to realize power transmission. The motor 201 is fixed to the top of the reactor 100 by the bracket 203 to ensure stable operation.

[0028] When stirring at low speed: When the motor 201 runs at a low speed, the centrifugal force on the stirring rod 302 is small, and the return spring 303 keeps the stirring rod 302 close to the extension rod 301. The stirring range is more concentrated, which is suitable for gentle mixing or low viscosity materials.

[0029] Medium-speed stirring with medium centrifugal force: As the speed of motor 201 increases, the centrifugal force increases, and the stirring rod 302 swings outward under the action of centrifugal force, overcoming the elastic force of the return spring 303, expanding the stirring range, and enhancing the mixing effect of liquids at different heights and radial positions in the vessel.

[0030] High-speed stirring and high centrifugal force: When the motor 201 runs at high speed, the centrifugal force increases further, and the stirring rod 302 extends outward to the maximum angle, covering the edge area of ​​the vessel cavity 100a, forming stronger turbulence and shear force, which is suitable for high viscosity materials or reaction processes that require vigorous mixing.

[0031] It is worth mentioning that the adaptive stirring range is as follows: the swing angle of the stirring rod 302 is automatically adjusted with the rotation speed to ensure efficient mixing of materials at different speeds, reducing vibration and energy consumption. Because the stirring rods are symmetrically distributed and can be dynamically adjusted, the equipment shaking caused by traditional eccentric stirring is avoided, resulting in more stable operation, lower energy consumption, and improved reaction efficiency. By optimizing the stirring range and intensity, the reactants are ensured to be in full contact, shortening the reaction time and improving the product quality and mixing efficiency of the water-reducing agent. Example 2

[0032] Please refer to Figure 1 to Figure 4 The preferred technical solution provided by this utility model is as follows: (Refer to...) Figure 3 to Figure 4In this embodiment, there are four stirring rods 302, and the included angle between adjacent stirring rods 302 is equal. One end of the stirring rod 302 is hinged to the end of the stirring rod 302 through the support 304. The other end of the stirring rod 302 can extend to the top of the inner side of the vessel cavity 100a and to the bottom of the inner side of the vessel cavity 100a. A limiting rod 305 is provided between the stirring rod 302 and the extension rod 301, and the limiting rod 305 passes through the stirring rod 302.

[0033] Specifically, four stirring rods 302 are provided, with the included angle between adjacent stirring rods 302 being 90°, forming a completely symmetrical cross shape to ensure uniform distribution of stirring force within the vessel cavity. One end of each stirring rod 302 is hinged to the extension rod 301 via a support 304, enabling a swingable connection. The other end extends to the top and bottom of the vessel cavity 100a, forming a vertically penetrating stirring structure to achieve full-height mixing coverage. A limiting rod 305 is provided between the stirring rod 302 and the extension rod 301, and the limiting rod 305 penetrates the rod body of the stirring rod 302. The function of the limiting rod 305 is to constrain the maximum swing angle of the stirring rod 302, preventing excessive outward extension of the stirring rod due to excessive centrifugal force during high-speed rotation, thereby avoiding structural interference or collision with the vessel wall.

[0034] Low-speed operation: The return spring 303 keeps the stirring rod 302 close to the extension rod 301, which is suitable for gentle stirring or low-viscosity materials.

[0035] Medium and high speed operation: As the rotation speed increases, the centrifugal force drives the stirring rod 302 to overcome the spring force and extend outward. The limiting rod 305 ensures that its swing range is always within the safe range, forming high-intensity turbulence, which is suitable for high-viscosity materials or violent reaction requirements.

[0036] It is worth mentioning that the vertically extending design of the stirring rod significantly improves mixing uniformity and avoids blind spots in traditional stirring. The limiting rod 305 and the symmetrical layout work together to suppress vibration and extend the equipment's lifespan. The mechanical structure automatically adjusts the stirring intensity simply by controlling the speed of the motor 201, requiring no manual intervention and making operation simple.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. Among these, there are various ways to install detachably, such as by using a plug-in and snap-fit ​​method, or by using a bolt connection, etc.

[0038] In addition, all the connections / connections mentioned in the article do not refer to direct connection of components, but rather to the formation of a better connection structure by adding or removing connecting accessories according to the specific implementation situation.

[0039] The above description of the specific embodiments of this utility model is only for further explanation of this utility model and should not be construed as limiting the scope of protection of this utility model. Those skilled in the art should make their own decisions based on the provided description.

[0040] Any non-essential improvements and adjustments made to this utility model based on the above-described content fall within the protection scope of this utility model.

Claims

1. An efficient polymerization reactor for water-reducing agent production, characterized by: The utility model provides a reaction kettle (100) and a stirring assembly (300) arranged in the kettle cavity (100a) of the reaction kettle (100), wherein the top of the stirring assembly (300) is provided with a driving assembly (200) and located on the outer surface of the reaction kettle (100). The extension rod (301) of the stirring assembly (300) coincides with the central axis of the reaction kettle (100), the extension rod (301) is hinged to one end of the stirring rod (302), a reset spring (303) is arranged between the stirring rod (302) and the extension rod (301), the stirring rod (302) is multiple and radially symmetrically distributed around the central axis.

2. The efficient polymerization reactor for producing water reducing agent according to claim 1, characterized in that: The stirring rod (302) is four, and the included angle between adjacent stirring rods (302) is equal.

3. The efficient polymerization reactor for producing water reducing agent according to claim 1, characterized in that: One end of the stirring rod (302) is hinged to the end of the stirring rod (302) through a support (304).

4. The efficient polymerization reactor for producing water reducing agent according to claim 3, characterized in that: The other end of the stirring rod (302) can extend to the inner top of the kettle cavity (100a) and the inner bottom of the kettle cavity (100a).

5. The efficient polymerization reactor for producing water reducing agent according to claim 2, characterized in that: A limiting rod (305) is arranged between the stirring rod (302) and the extension rod (301), and the limiting rod (305) penetrates the stirring rod (302).

6. The efficient polymerization reactor for producing water reducing agent according to claim 1, characterized in that: The driving assembly (200) comprises a motor (201), a shaft coupling (202) and a bracket (203), and the shaft coupling (202) is arranged in the channel (101) of the reaction kettle (100).

7. The efficient polymerization reactor for producing water reducing agent according to claim 6, characterized in that: One end of the shaft coupling (202) is connected with the output shaft of the motor (201), and the other end is connected with the extension rod (301), and the motor (201) is arranged above the channel (101) of the reaction kettle (100) through the bracket (203).

8. The efficient polymerization reactor for producing water reducing agent according to claim 6, characterized in that: The reaction kettle (100) is provided with a material inlet (102) for feeding and a discharge port (103) for discharging.

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