An acrylic resin reactor

Abstract

This utility model discloses an acrylic resin reactor. An inner support is installed at the upper end of the reactor body, and an inner coil is installed on the inner wall of the inner support. Several inner heating cylinders are installed on the inner wall of the reactor body, below the inner coil. Each inner heating cylinder is interconnected with the inside of the jacket via two connecting pipes. A stirring paddle and stirring shaft are rotatably mounted inside the reactor body. A main discharge port is located at the center of the lower end cap, and an auxiliary discharge port is also provided on the lower end cap. This utility model has a reasonable structure. By utilizing the inner heating cylinders extending into the reactor body, it improves the contact between the material and the heat exchange medium, thereby enhancing the reaction effect of the acrylic resin. When processing is nearing completion, one stream of coolant can be cooled through the inner coil, and then another stream of coolant can be cooled through the jacket and the inner heating cylinders extending into the reactor body, thus greatly improving the cooling efficiency. Furthermore, when the main discharge port is blocked, the auxiliary discharge port ensures efficient discharge.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, specifically to an acrylic resin reaction vessel. Background Technology

[0002] Acrylic resin is a general term for polymers of acrylic acid, methacrylic acid, and their derivatives. Acrylic resin coatings are thermoplastic or thermosetting resin coatings or acrylic radiation coatings made by copolymerizing (meth)acrylates and styrene with other acrylates.

[0003] Acrylic resin is generally produced in a reactor. The temperature of acrylic resin is strictly controlled between 110-150℃ (±2℃) to avoid explosive polymerization caused by high temperature or incomplete reaction caused by low temperature. Currently, acrylic resin reactors generally use jackets for heating or cooling, resulting in low heat exchange efficiency and a high probability of explosive polymerization. Furthermore, current acrylic resin reactors generally only have one discharge port. If the discharge port is blocked, it will be impossible to discharge the resin. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide an acrylic resin reactor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an acrylic resin reactor, comprising a reactor body, an upper head, a lower head, a jacket, an inner coil, an inner heating cylinder, a motor, a stirring shaft, and a stirring paddle. The upper head is located at the top of the reactor body, and the lower head is located at the bottom of the reactor body. The reactor body and the lower head are both encased in a jacket. An inner support is located at the upper part of the reactor body. An inner coil is installed on the inner wall of the inner support via U-shaped fasteners. Several inner heating cylinders are located on the inner wall of the reactor body and below the inner coil. Each inner heating cylinder is connected to the inside of the jacket via two connecting pipes. A motor base is coaxially mounted on the upper surface of the upper head. A motor is mounted on the upper surface of the motor base. The output shaft of the motor is connected to the top of the stirring shaft via a coupling. A stirring paddle is located at the lower part of the stirring shaft. Both the stirring paddle and the stirring shaft are rotatably mounted inside the reactor body. A main discharge port is located at the center of the lower head, and an auxiliary discharge port is also provided on the lower head.

[0006] Preferably, the acrylic resin reactor provided by this utility model is provided with a plurality of temperature sensor mounting sleeves in the reactor body.

[0007] Preferably, the acrylic resin reactor provided by this utility model has a first heat exchange medium inlet at the bottom of the jacket and a plurality of first heat exchange medium outlets at the upper part of the jacket.

[0008] Preferably, the acrylic resin reactor provided by this utility model has a plurality of support plates provided inside the jacket.

[0009] Preferably, in the acrylic resin reactor provided by this utility model, the jacket is further provided with several supports.

[0010] Preferably, the acrylic resin reactor provided by this utility model has a manhole and a feed inlet on the upper end cap.

[0011] Preferably, the acrylic resin reactor provided by this utility model has a second heat exchange medium inlet and a second heat exchange medium outlet on the outer surface of the reactor body, and the second heat exchange medium inlet and the second heat exchange medium outlet are respectively connected to both ends of the inner coil.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) Several internal heating cylinders are installed inside the reactor body through connecting pipes. The cooperation of the internal heating cylinders extending into the reactor body improves the contact between the material and the heat exchange medium, thereby improving the reaction effect of acrylic resin. In addition, an internal coil is installed at the upper end of the reactor body. When the processing is about to be completed, one coolant can be cooled by heat exchange through the internal coil, and then another coolant can be cooled by the jacket and the internal heating cylinders extending into the reactor body, thereby greatly improving the cooling efficiency and reducing the probability of explosive polymerization caused by the exothermic polymerization.

[0014] (2) At the same time, the lower end cap is equipped with a main discharge port and an auxiliary discharge port. When the main discharge port is blocked, the discharge efficiency is ensured by the auxiliary discharge port. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1. Vessel body; 2. Upper head; 3. Lower head; 4. Jacket; 5. Inner coil; 6. Inner heating cylinder; 7. Motor; 8. Stirring shaft; 9. Stirring paddle; 10. Inner support; 11. Connecting pipe; 12. Motor base; 13. Main discharge port; 14. Auxiliary discharge port; 15. Temperature sensor mounting sleeve; 16. First heat exchange medium inlet; 17. First heat exchange medium outlet; 18. Support plate; 19. Support; 20. Manhole; 21. Feed inlet; 22. Second heat exchange medium inlet; 23. Second heat exchange medium outlet. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0019] Please see Figure 1This utility model provides a technical solution: an acrylic resin reactor, including a reactor body 1, an upper head 2, a lower head 3, a jacket 4, an inner coil 5, an inner heating cylinder 6, a motor 7, a stirring shaft 8, and a stirring paddle 9. The upper head 2 is provided at the top of the reactor body 1, and the lower head 3 is provided at the bottom of the reactor body 1. The reactor body 1 and the lower head 3 are both covered by a jacket 4. The bottom of the jacket 4 is provided with a first heat exchange medium inlet 16, and the upper part of the jacket 4 is provided with a plurality of first heat exchange medium outlets 17. The reaction medium passes through the first heat exchange medium inlet 16 and the lower head 3. A heat exchange medium outlet 17 allows heat transfer oil or coolant to enter and exit the jacket 4. Several support plates 18 are installed inside the jacket 4 to ensure its support strength. Several supports 19 are also installed outside the jacket 4 to support and fix the reactor. An inner support 10 is installed at the upper end of the reactor body 1. An inner coil 5 is installed on the inner wall of the inner support 10 via U-shaped fasteners. A second heat exchange medium inlet 22 and a second heat exchange medium outlet 23 are installed on the outer surface of the reactor body 1. The heat exchange medium outlet 23 is connected to both ends of the inner coil 5. Coolant enters and exits the inner coil 5 through the second heat exchange medium inlet 22 and the second heat exchange medium outlet 23. Several inner heating cylinders 6 are arranged on the inner wall of the vessel body 1 below the inner coil 5. Each inner heating cylinder 6 is connected to the inside of the jacket 4 through two connecting pipes 11. A motor base 12 is coaxially arranged on the upper surface of the upper head 2. A motor 7 is arranged on the upper surface of the motor base 12. The output shaft of the motor 7 is connected to the top of the stirring main shaft 8 through a coupling. A stirring paddle 9 is installed at the lower part of the main shaft 8. Both the stirring paddle 9 and the stirring main shaft 8 are rotatably installed inside the vessel body 1. The upper end cap 2 is provided with a manhole 20 and a feed inlet 21. The manhole 20 is used to clean or maintain the inside of the vessel body 1, and the feed inlet 21 is used to feed materials. The lower end cap 3 is provided with a main discharge port 13 at the center position. The lower end cap 3 is also provided with an auxiliary discharge port 14. The vessel body 1 is provided with several temperature sensor mounting sleeves 15 to install temperature sensors and thus monitor the internal temperature of the vessel body 1.

[0020] Installation method and operating principle: First, weld the lower end cap 3 to the bottom of the vessel body 1. Weld the inner heating cylinder 6 to the inner wall of the vessel body 1 through the connecting pipe 11. The vessel body 1 has through holes at the connecting pipe 11. Next, weld the inner support 10 to the upper part of the vessel body 1. Then, install the inner coil 5 on the inner side of the inner support 10 through U-shaped fasteners. Weld both ends of the inner coil 5 to the reserved holes. Fit the jacket 4 onto the outside of the vessel body 1 and the lower end cap 3 and weld it. The jacket 4 is supported by the support plate 18 inside. The second heat exchange medium inlet 22 and the second heat exchange medium outlet 23 are welded to the outside of the vessel body 1 and connected to the inner coil 5. The temperature sensor mounting sleeves 15 are passed through the vessel body 1 and welded to the vessel body 1. The motor 7 is mounted on the upper surface of the motor base 12. The top of the stirring shaft 8 with the stirring paddle 9 is connected to the output shaft of the motor 7 through a coupling. The stirring paddle 9 and the stirring shaft 8 are inserted into the vessel body 1, and the upper end cap 2 is installed on the top of the vessel body 1 by welding or bolt fastening. The installation is completed. In use, the acrylate monomer and initiator are put into the vessel body 1 through the feed inlet 21. The 160°C heat transfer oil or hot steam enters the jacket 4 from the first heat exchange medium inlet 16 and enters the inner heating cylinder 6 through the connecting pipes 11 and exits from the first heat exchange medium outlet 17 at the top to heat the inside of the vessel body 1. The motor 7 is started, and the motor 7 drives the stirring shaft 8 to rotate, thereby driving the stirring paddle 9 to stir the material to obtain acrylic resin. When the processing is about to be completed, one stream of 100°C coolant is first sent into the inner coil 5 from the second heat exchange medium inlet 22 and leaves from the second heat exchange medium outlet 23. Then another stream of 100°C coolant enters the jacket 4 and the inner heating cylinder 6 from the first heat exchange medium inlet 16 to cool the inside of the reactor body 1 and prevent the polymerization exothermic reaction from causing explosive polymerization. This utility model has a reasonable structure. Inside the reactor body 1, several internal heating cylinders 6 are installed through connecting pipes 11. The cooperation of the internal heating cylinders 6 extending into the reactor body 1 improves the contact between the material and the heat exchange medium, thereby improving the reaction effect of the acrylic resin. In addition, an internal coil 5 is installed at the upper end of the reactor body 1. When the processing is about to be completed, one stream of coolant can be cooled by heat exchange through the internal coil 5. Then, another stream of coolant is cooled by cooling through the jacket 4 and the internal heating cylinders 6 extending into the reactor body 1, thereby greatly improving the cooling efficiency and reducing the probability of explosive polymerization caused by exothermic polymerization. At the same time, the lower end cap is provided with a main discharge port 13 and an auxiliary discharge port 14. When the main discharge port 13 is blocked, the auxiliary discharge port 14 ensures the discharge efficiency.

[0021] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0022] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An acrylic resin reaction vessel, characterized in that: The vessel includes a vessel body (1), an upper head (2), a lower head (3), a jacket (4), an inner coil (5), an inner heating cylinder (6), a motor (7), a stirring shaft (8), and a stirring paddle (9). The upper head (2) is provided at the top of the vessel body (1), and the lower head (3) is provided at the bottom of the vessel body (1). The vessel body (1) and the lower head (3) are both wrapped with a jacket (4). An inner support (10) is provided at the upper end of the interior of the vessel body (1). The inner wall of the inner support (10) is provided with an inner coil (5) by means of U-shaped fasteners. Several inner heating cylinders are provided on the inner wall of the vessel body (1) and below the inner coil (5). The inner heating cylinder (6) is connected to the jacket (4) through two connecting pipes (11). The upper end cap (2) is coaxially provided with a motor seat (12). The upper surface of the motor seat (12) is provided with a motor (7). The output shaft of the motor (7) is connected to the top of the stirring main shaft (8) through a coupling. The stirring main shaft (8) is provided with a stirring paddle (9) at the bottom. The stirring paddle (9) and the stirring main shaft (8) are rotatably disposed in the vessel body (1). The lower end cap (3) is provided with a main discharge port (13) at the center position. The lower end cap (3) is also provided with an auxiliary discharge port (14).

2. The acrylic resin reactor according to claim 1, characterized in that: The vessel body (1) is provided with several temperature sensor mounting sleeves (15).

3. The acrylic resin reactor according to claim 1, characterized in that: The jacket (4) is provided with a first heat exchange medium inlet (16) at the bottom and a plurality of first heat exchange medium outlets (17) at the top.

4. An acrylic resin reaction vessel according to claim 1, characterized in that: The jacket (4) is provided with several support plates (18).

5. An acrylic resin reactor according to claim 1, characterized in that: Several supports (19) are also provided on the outside of the jacket (4).

6. The acrylic resin reactor according to claim 1, characterized in that: The upper end cap (2) is provided with a manhole (20) and a feed inlet (21).

7. An acrylic resin reactor according to claim 1, characterized in that: The outer surface of the vessel body (1) is provided with a second heat exchange medium inlet (22) and a second heat exchange medium outlet (23), which are respectively connected to the two ends of the inner coil (5).

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