A large industrialized phthalic acid polymerization production device

Abstract

This application relates to the field of polymerization reaction production equipment and discloses a large-scale industrial phthalic acid polymerization reaction production device, including a reaction tank and several connecting frames. A shielding cover is snapped onto the top of the reaction tank, and a motor is fixedly connected to the top of the shielding cover. The center of the motor and the center of the shielding cover are on the same straight line. An electro-hydraulic rod is fixedly installed on the top of each connecting frame, and a fixing bracket is fixedly connected to the surface of the electro-hydraulic rod. A pressure alarm is also fixedly installed on the surface of the electro-hydraulic rod. This application, by installing the connecting frames on the surface of the reaction tank, mounting the electro-hydraulic rod on the top of the connecting frames, and installing a pressure alarm on the surface of the electro-hydraulic rod, with one end of the electro-hydraulic rod connected to the surface of the shielding cover via the fixing bracket, allows for timely detection and alarm processing of the air pressure inside the electro-hydraulic rod when the shielding cover becomes loose due to excessive pressure during use of the reaction tank.

Description

Technical Field

[0001] This application relates to the field of polymerization reaction production equipment, and in particular to a large-scale industrial phthalic acid polymerization reaction production apparatus. Background Technology

[0002] Phthalic acid is an important organic raw material, mainly used in the production of polyester fibers, films, plastic products, insulating varnishes, and plasticizers. It has wide applications in chemical fibers, light industry, electronics, construction, and other fields, especially in the production of polyethylene terephthalate (PET). In addition, phthalic acid is also used in the manufacture of pharmaceuticals, dyes, and other products. Phthalic acid is often processed in a reaction vessel during polymerization. A reaction vessel is a closed container, broadly defined as a device that achieves the heating, evaporation, cooling, and mixing functions required by the process through structural design and parameter configuration. It can withstand specific pressures and temperatures and is suitable for chemical reaction processes such as vulcanization, nitration, hydrogenation, and polymerization. It is the "heart" equipment of the chemical and pharmaceutical industries. In conventional phthalic acid production, the material is placed inside the reaction vessel, which heats the material. A cover is installed on the top of the reaction vessel, and a motor is installed on top of the cover. After the motor starts, it controls the stirring mechanism inside the reaction vessel to mix the material.

[0003] Regarding the aforementioned technologies, the inventors believe that during the use of conventional reaction vessels, the pipeline system may become clogged with scale or impurities over a long period of time, which can easily lead to excessive pressure inside the reaction vessel. If the personnel do not address this issue for an extended period, it may cause the seals of the reaction vessel to age or become damaged, or even lead to an equipment explosion.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the problem of excessive pressure in conventional reactors that is difficult for operators to detect in a timely manner, this application provides a large-scale industrial phthalic acid polymerization production apparatus.

[0006] The large-scale industrial phthalic acid polymerization production apparatus provided in this application adopts the following technical solution:

[0007] A large-scale industrial phthalic acid polymerization production apparatus includes a reaction tank and several connecting frames. A shielding cover is snapped onto the top of the reaction tank, and a motor is fixedly connected to the top of the shielding cover. The center of the motor and the center of the shielding cover are aligned on the same straight line. An electro-hydraulic rod is fixedly installed on the top of each connecting frame, and a fixing bracket is fixedly connected to the surface of the electro-hydraulic rod. A pressure alarm is also fixedly installed on the surface of the electro-hydraulic rod. The top of each connecting frame is snapped onto the surface of the reaction tank. Several connecting frames are arranged in a circular array around the center of the reaction tank, and the dimensions of the top of each connecting frame are compatible with the dimensions of the surface of the reaction tank.

[0008] Preferably, one end of each of the fixing brackets is fixedly connected to a mounting ring, the inner wall of the mounting ring is fixedly installed with a fixing bolt, and the inner wall of the mounting ring is engaged with the surface of the cover. The dimensions of the inner wall of the mounting ring are compatible with the dimensions of the surface of the cover.

[0009] Preferably, the top of the cover is engaged with a limiting ring, the bottom end of the limiting ring is movably connected to the top of the mounting ring, and the center of the limiting ring and the center of the mounting ring are on the same straight line.

[0010] Preferably, an auxiliary piece is fixedly installed on the top of the connecting frame. The auxiliary piece is a rubber sheet, and the bottom end of the auxiliary piece is movably connected to the surface of the reaction vessel. The dimensions of the auxiliary piece are adapted to the dimensions of the top of the connecting frame.

[0011] Preferably, a pull spring is fixedly installed at the bottom end of the fixing frame, and a fixing seat is snapped into the bottom end of the pull spring. The bottom end of the fixing seat is fixedly connected to the top of the cover.

[0012] Preferably, a plurality of mounting brackets are welded to the top of the cover, and the plurality of mounting brackets are arranged in a circular array around the center of the cover. The cross-section of the mounting brackets is L-shaped. A limiting bracket is slidably mounted on the inner wall of the mounting bracket, and the surface of the limiting bracket is slidably connected to the inner wall of the mounting ring.

[0013] Preferably, an adjusting frame is slidably installed on the inner wall of the limiting frame, and a fixing spring is fixedly connected between the two limiting frames, with the center of the fixing spring and the center of the adjusting frame on the same straight line.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. By installing a connecting frame on the surface of the reaction vessel, with an electro-hydraulic rod mounted on top of the connecting frame and a pressure alarm on the surface of the electro-hydraulic rod, the pressure alarm can be used to check the air pressure inside the electro-hydraulic rod and promptly issue an alarm when the cover becomes loose due to excessive pressure. One end of the fixing frame is equipped with an installation ring, which is connected to the surface of the cover by fixing bolts. This facilitates easier installation and disassembly of the device. A limit ring is connected to the top of the installation ring to limit its position. A rubber auxiliary plate is installed at the bottom of the connecting frame to prevent vibrations during reaction vessel use from causing collisions and noise between the connecting frame and the reaction vessel. Compared to existing technologies, this significantly improves the safety of the reaction vessel.

[0016] 2. Alternatively, a pull spring can be installed at the bottom of the fixed frame, with a fixed seat snapped into the bottom of the pull spring. This allows the pull spring to ensure that the connecting frame at one end of the electro-hydraulic rod is connected to the reaction vessel. Several mounting brackets are installed on the top of the cover, with limit brackets slidably connected to the inner wall of each bracket. This allows the limit brackets to slide and engage with the mounting brackets, thus fixing the limit ring to the surface of the cover. An adjusting bracket is slidably connected between two limit brackets, with a fixing spring installed on the surface of the adjusting bracket. This allows the fixing spring to push the limit brackets, keeping them engaged with the mounting brackets. This effectively improves the performance of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a large-scale industrial phthalic acid polymerization production device according to the application embodiment;

[0018] Figure 2 This is a schematic diagram of the connecting frame structure according to an embodiment of the application;

[0019] Figure 3 This is a side view of the embodiment of the application.

[0020] Figure 4 This is a schematic diagram of the structure at point A in the embodiment of the application.

[0021] Explanation of reference numerals in the attached drawings: 1. Reaction vessel; 2. Cover; 3. Motor; 4. Connecting frame; 5. Electro-hydraulic rod; 6. Pressure alarm; 7. Fixing frame; 8. Mounting ring; 9. Fixing bolt; 10. Limiting ring; 11. Auxiliary plate; 12. Pulling spring; 13. Fixing base; 14. Mounting frame; 15. Limiting frame; 16. Fixing spring; 17. Adjusting frame. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 —4. This application will be described in further detail.

[0023] This application discloses a large-scale industrial phthalic acid polymerization production apparatus, referring to... Figure 1 - Figure 2 The system includes a reaction vessel 1. During use, the processing material is placed inside the reaction vessel 1, and the reaction vessel 1 heats the processing material. A cover 2 is installed on the top of the reaction vessel 1, and a motor 3 is installed on the top of the cover 2. After the motor 3 is started, it controls the stirring mechanism inside the reaction vessel 1 to mix the processing material. A connecting frame 4 is installed on the surface of the reaction vessel 1, and an electric hydraulic rod 5 is installed on the top of the connecting frame 4. A pressure alarm 6 is installed on the surface of the electric hydraulic rod 5, and one end of the electric hydraulic rod 5 is connected to the surface of the cover 2 by means of a fixing bracket 7. This allows the connecting frame 4 to be installed on the surface of the reaction vessel 1 by means of the electric hydraulic rod 5 during use. If the cover 2 is subjected to excessive pressure and becomes loose, the pressure alarm 6 will check the air pressure inside the electric hydraulic rod 5 and promptly trigger an alarm.

[0024] Reference Figure 2 One end of the fixing frame 7 is equipped with an installation ring 8, which is connected to the surface of the cover 2 by means of fixing bolts 9. This allows for easy connection between the fixing frame 7 and the surface of the cover 2, and also facilitates the disassembly of the installation ring 8 after removing the fixing bolts 9. This makes the installation and disassembly of the device more convenient. The top of the installation ring 8 is connected to a limit ring 10, the inner wall of which engages with the surface of the cover 2. This limit ring 10 restricts the position of the installation ring 8, preventing slippage and displacement between the electric hydraulic rod 5 and the reaction tank 1. The bottom of the connecting frame 4 is equipped with a rubber auxiliary piece 11, one end of which is connected to the surface of the reaction tank 1. This allows for separation between the connecting frame 4 and the reaction tank 1, preventing vibrations from the reaction tank 1 during use from causing collisions and noise between the connecting frame 4 and the reaction tank 1.

[0025] Reference Figure 3 - Figure 4A pull spring 12 is installed at the bottom of the fixed frame 7. A fixed seat 13 is snapped onto the bottom of the pull spring 12. The bottom of the fixed seat 13 is connected to the top of the cover 2, so that the fixed frame 7 can be pulled by the pull spring 12 to ensure that the connecting frame 4 at one end of the electric hydraulic rod 5 is connected to the reaction tank 1. Several mounting brackets 14 are installed on the top of the cover 2. A limit bracket 15 is slidably connected to the inner wall of the mounting bracket 14. The surface of the limit bracket 15 slides against the inner wall of the mounting ring 8, so that the limit bracket 15 can slide after sliding. The limiting ring 10 is fixed to the surface of the cover 2 by engaging with the mounting bracket 14. After the limiting bracket 15 is separated from the mounting bracket 14, it is convenient to move the limiting ring 10 upward. It is also more convenient to disassemble the mounting ring 8. An adjusting bracket 17 is slidably connected between the two limiting brackets 15. A fixing spring 16 is installed on the surface of the adjusting bracket 17 so that the limiting bracket 15 can be pushed by the fixing spring 16 to keep the limiting bracket 15 engaged with the mounting bracket 14, thereby improving the fixing effect of the limiting ring 10.

[0026] The implementation principle of a large-scale industrial phthalic acid polymerization production device according to an embodiment of this application is as follows: A connecting frame 4 is installed on the surface of the reaction tank 1. An electric hydraulic rod 5 is installed on the top of the connecting frame 4, and a pressure alarm 6 is installed on the surface of the electric hydraulic rod 5. One end of the electric hydraulic rod 5 is connected to the surface of the cover 2 via a fixing frame 7. This allows the connecting frame 4 to be installed on the surface of the reaction tank 1 using the electric hydraulic rod 5 during use. If the cover 2 becomes loose due to excessive pressure, the pressure alarm 6 checks the air pressure inside the electric hydraulic rod 5 and promptly triggers an alarm. One end of the fixing frame 7 is equipped with an installation ring 8, which is connected to the surface of the cover 2 via fixing bolts 9, facilitating easy installation of the cover. The fixing bracket 7 is connected to the surface of the shielding cover 2, and the mounting ring 8 can be easily disassembled after the fixing bolt 9 is removed, making it more convenient to install and disassemble the device. The top of the mounting ring 8 is connected to the limiting ring 10, and the inner wall of the limiting ring 10 is engaged with the surface of the shielding cover 2, so as to limit the position of the mounting ring 8 by means of the limiting ring 10, and avoid the situation where the mounting ring 8 slips and causes the electric hydraulic rod 5 to deviate from the reaction tank 1. The bottom end of the connecting bracket 4 is equipped with a rubber auxiliary piece 11, one end of which is connected to the surface of the reaction tank 1, so as to separate the connecting bracket 4 and the reaction tank 1 by means of the auxiliary piece 11, and avoid the situation where the vibration generated by the reaction tank 1 during use causes the connecting bracket 4 and the reaction tank 1 to collide and generate noise.

[0027] Alternatively, a pull spring 12 can be installed at the bottom of the fixed frame 7. The bottom of the pull spring 12 is snapped with a fixed seat 13, and the bottom of the fixed seat 13 is connected to the top of the cover 2, so that the fixed frame 7 can be pulled by the pull spring 12 to ensure that the connecting frame 4 at one end of the electro-hydraulic rod 5 is connected to the reaction vessel 1. Several mounting brackets 14 are installed on the top of the cover 2. The inner wall of the mounting bracket 14 is slidably connected to a limit bracket 15. The surface of the limit bracket 15 slides against the inner wall of the mounting ring 8, so that the limit bracket 15 can slide. The limiting ring 10 is then engaged with the mounting bracket 14, thereby fixing the limiting bracket 15 to the surface of the cover 2. After the limiting bracket 15 is separated from the mounting bracket 14, it is convenient to move the limiting ring 10 upward, and it is more convenient to disassemble the mounting ring 8. An adjusting bracket 17 is slidably connected between the two limiting brackets 15. A fixing spring 16 is installed on the surface of the adjusting bracket 17, so that the limiting bracket 15 can be pushed by the fixing spring 16 to keep the limiting bracket 15 engaged with the mounting bracket 14, thereby improving the fixing effect of the limiting ring 10.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A large-scale industrial phthalic acid polymerization production apparatus, comprising a reaction vessel (1) and several connecting frames (4), characterized in that: The top of the reaction vessel (1) is fitted with a shielding cover (2), and a motor (3) is fixedly connected to the top of the shielding cover (2). The center of the motor (3) and the center of the shielding cover (2) are on the same straight line. An electric hydraulic rod (5) is fixedly installed on the top of the connecting frame (4). A fixing frame (7) is fixedly connected to the surface of the electric hydraulic rod (5), and a pressure alarm (6) is fixedly installed on the surface of the electric hydraulic rod (5).

2. The large-scale industrial phthalic acid polymerization production apparatus according to claim 1, characterized in that: The top of the connecting frame (4) is snapped into the surface of the reaction vessel (1). Several connecting frames (4) are arranged in a circular array with the center of the reaction vessel (1) as the axis, and the size of the top of the connecting frame (4) is compatible with the size of the surface of the reaction vessel (1).

3. The large-scale industrial phthalic acid polymerization production apparatus according to claim 1, characterized in that: A mounting ring (8) is fixedly connected to one end of several of the fixing brackets (7). A fixing bolt (9) is fixedly installed on the inner wall of the mounting ring (8), and the inner wall of the mounting ring (8) is engaged with the surface of the cover (2). The size of the inner wall of the mounting ring (8) is compatible with the size of the surface of the cover (2).

4. A large-scale industrial phthalic acid polymerization production apparatus according to claim 1, characterized in that: The top of the cover (2) is engaged with a limiting ring (10), the bottom end of the limiting ring (10) is movably connected to the top of the mounting ring (8), and the center of the limiting ring (10) and the center of the mounting ring (8) are on the same straight line.

5. A large-scale industrial phthalic acid polymerization production apparatus according to claim 1, characterized in that: An auxiliary piece (11) is fixedly installed on the top of the connecting frame (4). The auxiliary piece (11) is a rubber sheet, and the bottom end of the auxiliary piece (11) is movably connected to the surface of the reaction vessel (1). The size and specifications of the surface of the auxiliary piece (11) are compatible with the size and specifications of the top of the connecting frame (4).

6. A large-scale industrial phthalic acid polymerization production apparatus according to claim 1, characterized in that: A pull spring (12) is fixedly installed at the bottom of the fixed frame (7), and a fixed seat (13) is snapped into the bottom of the pull spring (12). The bottom of the fixed seat (13) is fixedly connected to the top of the cover (2).

7. A large-scale industrial phthalic acid polymerization production apparatus according to claim 1, characterized in that: The top of the cover (2) is welded with several mounting brackets (14). The mounting brackets (14) are arranged in a circular array with the center of the cover (2) as the axis. The cross section of the mounting bracket (14) is "L" shaped. The inner wall of the mounting bracket (14) is slidably mounted with a limiting bracket (15). The surface of the limiting bracket (15) is slidably connected to the inner wall of the mounting ring (8).

8. A large-scale industrial phthalic acid polymerization production apparatus according to claim 7, characterized in that: An adjusting frame (17) is slidably installed on the inner wall of the limiting frame (15), and a fixing spring (16) is fixedly connected between the two limiting frames (15). The center of the fixing spring (16) and the center of the adjusting frame (17) are on the same straight line.

Images