Continuous reactor for producing methacrylate

Abstract

The utility model belongs to the technical field of continuous reactors, and particularly relates to a continuous reactor for producing methacrylate, which comprises an instrument body and a motor, a rotating shaft is arranged at the output end of the motor, a rotating frame is fixedly mounted at the bottom of the rotating shaft, a first gear is fixedly mounted on the outer side of the rotating shaft, and a second gear is arranged on the rotating frame. A supporting column is arranged at the bottom of the second gear, and a stirrer is fixedly installed at the bottom of the supporting column. The scraper blade stirrer is installed to clean the inner wall, the motor is started and drives the rotating shaft to rotate, when the rotating shaft rotates, the rotating shaft then drives the rotating frame to rotate, the second gear on the rotating frame starts to rotate along with rotation of the rotating frame and under the interaction of the first gear, and the inner wall is cleaned through the scraper blade stirrer. The second gear rotates to drive the stirrer to rotate, then stirring is conducted in the instrument body, the stirrer is installed, reaction of reactants can be accelerated, the reaction rate can be increased, and even mixing of raw materials can be promoted.

Description

Technical Field

[0001] This utility model relates to the field of continuous reactor technology, specifically a continuous reactor for the production of methacrylate. Background Technology

[0002] Methacrylates, as important organic chemical raw materials, are widely used in coatings, adhesives, plastics, and many other fields. Their production process is crucial, and in continuous reactors used for methacrylate production, the problem of fouling on the inner walls has gradually become a key factor restricting production efficiency and product quality improvement. Continuous reactors, with their high efficiency and stable production advantages, occupy a dominant position in the industrial production of methacrylates. However, as production continues, fouling inevitably accumulates on the reactor's inner walls. This is because the production reaction of methacrylates is quite complex, involving a series of side reactions in addition to the main reaction that produces the target product.

[0003] Patent document CN213315013U discloses a tubular reactor for the production of hydroxypropyl methacrylate. The invention discloses a tubular reactor for the production of hydroxypropyl methacrylate, comprising a support block, a snap-fit ​​groove on the top of the support block, a tubular reactor body movably snapped into the inner cavity of the snap-fit ​​groove, a rectangular through hole on one side of the inner wall of the snap-fit ​​groove above the tubular reactor body, a limiting block slidably fitted into the inner cavity of the rectangular through hole, symmetrically provided with limiting grooves on both sides of the limiting block, and symmetrically fixedly connected to limiting sliders on both sides of the inner wall of the rectangular through hole. The outer walls of the two limiting sliders slidably fit into the inner cavities of the corresponding limiting grooves, and one side of each limiting slider is fixedly connected to... First return spring. This utility model utilizes the setting of a bearing block and a limiting block. The bearing block places the tubular reactor, and the limiting block restricts the position of the tubular reactor, thereby performing the installation and positioning work of the tubular reactor. The disassembly and assembly are simple, and the work efficiency of replacing and maintaining the tubular reactor is improved. However, the tubular reactor for the production of hydroxypropyl methacrylate in the above-mentioned literature mainly considers improving the work efficiency of replacing and maintaining the tubular reactor, without considering the problem that some reactants, products or impurities may adhere to the inner wall of the reactor and accumulate over time to form scale. Therefore, it is necessary to study a continuous reactor for the production of methacrylate, so as to be able to scrape off the attached materials in time and prevent the thickening of the scale layer. Utility Model Content

[0004] The purpose of this invention is to provide a continuous reactor for the production of methacrylates, so as to solve the technical problem of cleaning the inner wall mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a continuous reactor for the production of methacrylate, comprising an instrument body and a motor, wherein a rotating shaft is provided at the output end of the motor, a rotating frame is fixedly installed at the bottom of the rotating shaft, and multiple rotating frames are installed thereon, a first gear is fixedly installed on the outer side of the rotating shaft, and the first gear is positioned above the rotating frame, a second gear is provided on the rotating frame, a support column is provided at the bottom of the second gear, and the support column extends through the bottom of the rotating frame, and a stirrer is fixedly installed at the bottom of the support column.

[0006] Preferably, a sealing box is fixedly installed at the bottom of the end of the rotating frame, an electric push rod is fixedly installed inside the sealing box, a push rod housing is slidably installed inside the electric push rod, and the push rod housing extends through the bottom of the sealing box, and a scraper is fixedly installed at the bottom of the push rod housing.

[0007] Preferably, a support leg is fixedly installed on the lower part of the instrument body, and multiple support legs are installed. A base plate is fixedly installed on the lower part of the support leg. A spring is fixedly connected to the bottom end of the base plate, and a base is fixedly installed on the other end of the spring. The base is in contact with the ground.

[0008] Preferably, a damper is installed inside the base, and one end of the damper passes through the interior of the spring and is fixedly connected to the base plate.

[0009] Preferably, a feed inlet is fixedly installed on one side of the instrument body, a receiving tank is fixedly installed below the instrument body, and a discharge outlet is fixedly installed on one side of the receiving tank.

[0010] Preferably, a sealing ring is provided at the bottom of the sealing box, and the sealing ring is located on the outside of the push rod housing.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses a scraper agitator to clean the inner wall. First, the motor is started, which drives the rotating shaft to rotate. As the rotating shaft rotates, it drives the rotating frame to rotate. As the rotating frame rotates, the electric push rod inside the sealed box begins to extend and retract under the drive of the motor. The inner wall is cleaned by the rotating frame. The scraper moves continuously against the inner wall of the reactor, which can scrape off the attached material in time and prevent the thickening of the scale layer. At the same time, the second gear on the rotating frame starts to rotate due to the interaction between the rotating frame and the first gear. The rotation of the second gear drives the agitator to rotate, which then stirs the instrument body. Installing the agitator can not only accelerate the reaction of the reactants and increase the reaction rate, but also promote the uniform mixing of raw materials.

[0013] 2. This utility model reduces instrument vibration by installing a spring damper. The spring and damper are combined and installed under the base. When the instrument body shakes during operation, the spring absorbs the external impact force, but this force causes the spring to shake. The damper dissipates this energy, thereby reducing vibration and buffering impact. This can prevent fatigue cracks from appearing on the reactor shell and pipe connections due to long-term vibration, prevent bolts from loosening due to vibration, and thus ensure the integrity of the equipment structure and extend the overall service life of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the instrument body of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal rotating shaft structure of the instrument body of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the sealing box of this utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the base of this utility model.

[0019] In the diagram: 1. Instrument body; 2. Motor; 3. Feed inlet; 4. Discharge outlet; 5. Base; 6. Support leg; 7. Receiving tank; 8. Base plate; 9. Gear No. 1; 10. Gear No. 2; 11. Sealing box; 12. Push rod housing; 13. Scraper; 14. Rotating frame; 15. Support column; 16. Stirrer; 17. Rotating shaft; 18. Sealing ring; 19. Electric push rod; 20. Damper; 21. Spring. Detailed Implementation

[0020] The technical solutions of the present 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 the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 - Figure 4A continuous reactor for the production of methacrylate includes an instrument body 1 and a motor 2. A rotating shaft 17 is provided at the output end of the motor 2. A rotating frame 14 is fixedly mounted on the bottom of the rotating shaft 17, and multiple rotating frames 14 are mounted thereon. A first gear 9 is fixedly mounted on the outer side of the rotating shaft 17 and is positioned above the rotating frames 14. A second gear 10 is mounted on the rotating frames 14, and a support column 15 is provided at the bottom of the second gear 10, extending through the bottom of the rotating frames 14. The bottom of the support column 15 is fixed... A stirrer 16 is installed, and a sealing box 11 is fixedly installed at the bottom end of the rotating frame 14. An electric push rod 19 is fixedly installed inside the sealing box 11, and a push rod housing 12 is slidably installed inside the electric push rod 19, with the push rod housing 12 extending through the bottom of the sealing box 11. A scraper 13 is fixedly installed at the bottom of the push rod housing 12. With the steady development of the global economy, especially the rise of emerging economies, the rapid expansion of industries such as manufacturing and construction has further stimulated the demand for methacrylates and their products, prompting manufacturers to seek... A more efficient production method, the continuous reactor, has emerged. During the production of methacrylate, some reactants, products, or impurities may adhere to the inner wall of the reactor, accumulating and forming scale over time. The inner wall is cleaned by installing a scraper 13 and an agitator 16. First, the motor 2 is started, which drives the rotating shaft 17 to rotate. As the rotating shaft 17 rotates, it drives the rotating frame 14 to rotate. As the rotating frame 14 rotates, the electric push rod 19 in the sealed box 11 begins to extend and retract under the drive of the motor 2, cleaning the inner wall under the drive of the rotating frame 14. The scraper 13 moves continuously against the inner wall of the reactor, which can scrape off the attached material in time and prevent the scale layer from thickening. At the same time, the gear 10 on the rotating frame 14 starts to rotate under the interaction of the rotating frame 14 and the gear 9. The rotation of the gear 10 drives the agitator 16 to rotate, which then stirs the inside of the instrument body 1. Installing the agitator 16 can not only accelerate the reaction of the reactants and increase the reaction rate, but also promote the uniform mixing of raw materials.

[0022] Please see Figure 1 and Figure 5A support leg 6 is fixedly installed below the instrument body 1, and multiple support legs 6 are installed. A base plate 8 is fixedly installed below the support legs 6. A spring 21 is fixedly connected to the bottom end of the base plate 8, and a base 5 is fixedly installed to the other end of the spring 21. The base 5 is in contact with the ground, and a damper 20 is installed inside the base 5. One end of the damper 20 passes through the interior of the spring 21 and is fixedly connected to the base plate 8. During operation, the instrument body 1 may shake due to unstable or insecure components. Over time, this may damage some parts of the reactor, reducing its lifespan. The instrument is equipped with a spring 21 and a damper 20 to reduce vibration. The spring 21 and the damper 20 are installed together under the base 5. When the instrument body 1 shakes during operation, the spring 21 absorbs the external impact force. However, these forces will cause the spring 21 to shake. The damper 20 dissipates this energy, thereby reducing vibration and buffering impact. This can prevent fatigue cracks from appearing on the reactor shell and pipe connections due to long-term vibration, prevent bolts from loosening due to vibration, and thus ensure the integrity of the equipment structure and extend the overall service life of the equipment.

[0023] Please see Figure 1 and Figure 4 A feed inlet 3 is fixedly installed on one side of the instrument body 1. The feed inlet 3 is used to put in materials. A receiving tank 7 is fixedly installed at the bottom of the instrument body 1. A discharge port 4 is fixedly installed on one side of the receiving tank 7. The receiving tank 7 and the discharge port 4 are installed so that the materials can enter the receiving tank 7 after reaction and then come out through the discharge port 4. A sealing ring 18 is provided at the bottom of the sealing box 11 and is located on the outside of the push rod housing 12. The sealing ring 18 is installed to prevent external materials from entering the sealing box 11 and causing damage to the machine inside the sealing box 11.

[0024] The working principle involves cleaning the inner wall using a scraper 13 and a stirrer 16. First, the motor 2 is started, driving the rotating shaft 17 to rotate. This rotation, in turn, drives the rotating frame 14. As the rotating frame 14 rotates, the electric push rod 19 inside the sealed box 11 extends and retracts under the influence of the motor 2, cleaning the inner wall. The scraper 13, constantly moving and adhering to the reactor's inner wall, effectively removes adhering materials, preventing the thickening of the scale layer. Simultaneously, gear 10 on the rotating frame 14, interacting with gear 9, begins to rotate. This rotation drives the stirrer 16 to rotate, subsequently cleaning the instrument body. The stirring inside the reactor is carried out. The stirrer 16 not only accelerates the reaction of the reactants and increases the reaction rate, but also promotes the uniform mixing of raw materials. The vibration of the instrument is reduced by installing a spring 21 and a damper 20. The spring 21 and the damper 20 installed under the base 5 are combined together. When the instrument body 1 shakes during operation, the spring 21 absorbs the external impact force, but these forces will cause the spring 21 to shake. The damper 20 dissipates this energy, thereby reducing vibration and buffering impact. This can prevent fatigue cracks from appearing in the reactor shell and pipe connections due to long-term vibration, prevent bolts from loosening due to vibration, and thus ensure the integrity of the equipment structure and extend the overall service life of the equipment.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A continuous reactor for the production of methacrylates, comprising an instrument body (1) and an electric motor (2), characterized in that: The output end of the motor (2) is provided with a rotating shaft (17). A rotating frame (14) is fixedly installed at the bottom of the rotating shaft (17), and multiple rotating frames (14) are installed. Gear No. 1 (9) is fixedly installed on the outside of the rotating shaft (17), and gear No. 1 (9) is located above the rotating frame (14). Gear No. 2 (10) is provided on the rotating frame (14). A support column (15) is provided at the bottom of gear No. 2 (10), and the support column (15) passes through the bottom of the rotating frame (14). A stirrer (16) is fixedly installed at the bottom of the support column (15).

2. The continuous reactor for producing methacrylate according to claim 1, wherein: A sealing box (11) is fixedly installed at the bottom of the end of the rotating frame (14). An electric push rod (19) is fixedly installed inside the sealing box (11). A push rod housing (12) is slidably installed inside the electric push rod (19), and the push rod housing (12) extends out of the bottom of the sealing box (11). A scraper (13) is fixedly installed at the bottom of the push rod housing (12).

3. The continuous reactor for producing methacrylate according to claim 1, wherein: Support legs (6) are fixedly installed below the instrument body (1), and multiple support legs (6) are installed. A base plate (8) is fixedly installed below the support legs (6). A spring (21) is fixedly connected to the bottom end of the base plate (8). A base (5) is fixedly installed at the other end of the spring (21). The base (5) is in contact with the ground.

4. The continuous reactor for producing methacrylate according to claim 3, wherein: A damper (20) is installed inside the base (5), and one end of the damper (20) passes through the interior of the spring (21) and is fixedly connected to the base plate (8).

5. The continuous reactor for producing methacrylate according to claim 1, wherein: A feed inlet (3) is fixedly installed on one side of the instrument body (1), a receiving tank (7) is fixedly installed below the instrument body (1), and a discharge outlet (4) is fixedly installed on one side of the receiving tank (7).

6. The continuous reactor for producing methacrylate according to claim 2, wherein: The bottom of the sealing box (11) is provided with a sealing ring (18), and the sealing ring (18) is located on the outside of the push rod housing (12).

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