Methacrylic acid distillation device

Abstract

The utility model provides a methacrylic acid distillation device, which belongs to the field of methacrylic acid distillation and comprises a distillation tower, the distillation tower is divided into an upper cavity and a lower cavity, a heating component is connected in the cavity at the bottom of the distillation tower, and the heating component is used for distilling methacrylic acid; a collecting mechanism is arranged in the chamber at the top of the distillation tower and is used for collecting a methacrylic acid solution; the collecting mechanism comprises a top plate arranged at the top of the distillation tower, a water tank is formed in the bottom of the top plate, the bottom of the water tank is connected with a gas circulating pipe, and the gas circulating pipe is used for guiding out the gasified methacrylic acid material; according to the utility model, the distillation tower is connected with the collecting mechanism, so that gasified methacrylic acid can be cooled and collected in time, and steam loss and insufficient condensation are avoided.

Description

Technical Field

[0001] This utility model relates to the field of methacrylic acid distillation, and specifically to a methacrylic acid distillation apparatus. Background Technology

[0002] Methacrylic acid, as an important organic chemical raw material, has wide applications in industrial production, playing a crucial role in fields such as the synthesis of polymer materials, coatings, and adhesives. To meet the stringent purity requirements of different applications, distillation purification is an essential step. However, existing methacrylic acid distillation equipment suffers from numerous problems in practical use, severely restricting production efficiency and product quality.

[0003] In the collection of distillation products, existing equipment lacks effective collection and cooling measures. If the distilled methacrylic acid vapor is not collected and cooled promptly and effectively during its ascent, it is prone to vapor loss and insufficient condensation, resulting in low product recovery rates. Simultaneously, the insufficiently cooled methacrylic acid solution remains at a high temperature, which may continue to undergo chemical reactions during storage, affecting product stability.

[0004] In summary, existing methacrylic acid distillation apparatuses have significant shortcomings in terms of collection, failing to meet the demands of industrial production for efficient, stable, and high-quality distillation. Therefore, developing a novel methacrylic acid distillation apparatus is of great practical significance, and the methacrylic acid distillation apparatus of this invention has emerged in this context. Utility Model Content

[0005] In view of this, the present invention provides a methacrylic acid distillation apparatus, which connects the distillation tower to a collection mechanism so that the vaporized methacrylic acid can be cooled and collected in a timely manner, avoiding the loss of steam and insufficient condensation.

[0006] To address the aforementioned technical problems, this utility model provides a methacrylic acid distillation apparatus, including a distillation column divided into upper and lower chambers. A heating assembly is connected to the chamber at the bottom of the distillation column for distilling the methacrylic acid. A collection mechanism is installed in the chamber at the top of the distillation column to collect the methacrylic acid solution. The collection mechanism includes a top plate at the top of the distillation column, with a water tank at the bottom of the top plate. A gas flow pipe is connected to the bottom of the water tank for discharging the vaporized methacrylic acid. In other words, by dividing the distillation column into upper and lower chambers and arranging heating and collection mechanisms separately, the distillation and collection functions of methacrylic acid are separated, avoiding mutual interference, ensuring orderly distillation and solution collection, and improving the overall efficiency and stability of the distillation apparatus.

[0007] The collection mechanism also includes a condensation assembly located on one side of the distillation column, which includes an extension frame mounted on the side of the distillation column. In other words, by adding the condensation assembly, the function of the collection mechanism is improved, allowing the vaporized methacrylic acid to be converted into a liquid state for collection, thereby improving the collection efficiency and quality of methacrylic acid and ensuring the integrity of the distillation unit's collection function.

[0008] A cold water tank is installed on one side of the booster frame. This tank provides a cooling medium for the vaporized methacrylic acid solution. Inside the tank is a meandering, serpentine condenser tube. One end of the serpentine condenser tube is connected to a gas flow pipe, and the other end is connected to a liquid guide tube. In other words, by using the cold water tank to provide the cooling medium and utilizing the meandering shape of the serpentine condenser tube to increase the contact area and time between the vaporized methacrylic acid solution and the cooling medium, the cooling effect is enhanced. This allows for more efficient condensation of the vaporized methacrylic acid solution into a liquid state, which is then discharged through the liquid guide tube, improving condensation efficiency and effectiveness.

[0009] A liquid storage tank is installed on one side of the cold water tank to store the condensed methacrylic acid solution. The end of the liquid delivery pipe is connected to the top of the liquid storage tank. A recovery tank is located on one side of the liquid storage tank to collect the methacrylic acid solution flowing in the pipeline during vaporization. The recovery tank is connected to the gas flow pipe via a liquid recovery pipe. In other words, the liquid storage tank stores the condensed methacrylic acid solution for convenient subsequent use or further processing; while the recovery tank collects the methacrylic acid solution flowing in the gas flow pipe through the liquid recovery pipe, reducing material waste, improving resource utilization, and also reducing environmental pollution.

[0010] The heating assembly includes a heating water tank installed on the outside of the distillation column, which is connected to a circulating cooling water pipe inside the distillation column. That is, the material is heated evenly through the heating water tank and the circulating cooling water pipe, preventing localized overheating that could lead to the decomposition of methacrylic acid or other side reactions. This ensures the stability of the distillation process and product quality, while the circulating cooling water pipe also improves energy efficiency.

[0011] Inside the distillation column, a material box is mounted on a fixed block and positioned within the inner ring of the circulating cooling water pipes. This placement of the material box within the inner ring of the circulating cooling water pipes allows for full utilization of the heat dissipated by the pipes, improving heating efficiency and ensuring the material quickly reaches the temperature required for distillation. Simultaneously, the fixed block ensures the stability of the material box, preventing it from shaking or shifting during distillation.

[0012] Several temperature sensors are installed inside the chamber at the bottom of the distillation column to monitor the internal temperature. A feeding port is connected to the chamber at the top of the column to introduce material into the material tank. In other words, the temperature sensors allow for real-time monitoring of the internal temperature of the distillation column, enabling operators to adjust the operating status of the heating components based on temperature changes, ensuring the distillation process is carried out at a suitable temperature, thus improving distillation efficiency and product quality. The feeding port facilitates the addition of material, allowing the distillation process to continue, improving the ease of use and production efficiency of the equipment.

[0013] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0014] 1. The distillation column is divided into upper and lower chambers. The bottom chamber is used to connect the heating element for distilling methacrylic acid, while the top chamber is equipped with a collection mechanism to collect the methacrylic acid solution. This division ensures that the distillation and collection processes are relatively independent, avoiding mutual interference and contributing to improved distillation efficiency and product purity. The bottom heating element allows for a focused supply of a stable distillation temperature, while the top collection mechanism effectively and promptly collects the distilled methacrylic acid solution, ensuring the smoothness and stability of the entire distillation process.

[0015] 2. The serpentine condenser tubes within the cold water tank provide excellent cooling conditions for the vaporized methacrylic acid solution. The serpentine condenser tubes significantly increase the contact area and time between the vaporized solution and the cooling medium, enabling more efficient cooling of the vaporized methacrylic acid solution into a liquid state, thereby improving product collection efficiency. Simultaneously, this efficient condensation method also helps reduce the loss of methacrylic acid and improve resource utilization.

[0016] 3. The circulating heating method can make the temperature inside the distillation column more uniform, avoid local overheating or undercooling, and ensure the stability and consistency of the methacrylic acid distillation process. The uniform temperature environment helps to improve the distillation effect and make the product quality more stable.

[0017] 4. A recovery tank located on one side of the storage tank is connected to a gas flow pipe via a liquid recovery pipe. This allows for the collection of the methacrylic acid solution flowing within the pipeline during vaporization, enabling the recovery and reuse of useful components from the waste gas, reducing resource waste, and lowering production costs. Simultaneously, it helps reduce environmental pollution, aligning with the concept of sustainable development. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the methacrylic acid distillation apparatus of this utility model;

[0019] Figure 2This is a schematic diagram of the internal structure of the distillation tower and recovery tank in this utility model;

[0020] Figure 3 This is a side view of the overall structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the condenser assembly in this utility model.

[0022] Explanation of reference numerals in the attached drawings: 10, distillation column; 20, heating assembly; 201, heating water tank; 202, circulating heat dissipation water pipe; 203, fixing block; 204, material box; 30, temperature sensor; 40, feed port; 50, collection mechanism; 51, top plate; 52, water tank; 53, gas flow pipe; 54, condensation assembly; 541, riser; 542, cold water tank; 543, serpentine condenser tube; 544, liquid guide pipe; 545, liquid storage tank; 546, recovery tank; 547, liquid recovery pipe. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0024] like Figures 1-4 As shown: This embodiment provides a methacrylic acid distillation apparatus, including a distillation column 10, which is divided into upper and lower chambers. A heating assembly 20 is connected to the chamber at the bottom of the distillation column 10 for distilling methacrylic acid. A collection mechanism 50 is provided in the chamber at the top of the distillation column 10 for collecting the methacrylic acid solution. The collection mechanism 50 includes a top plate 51 fixed to the top of the distillation column 10 by bolts. A protruding plate is connected to the bottom of the top plate 51, and a water tank 52 is formed on the protruding plate. A gas flow pipe 53 is connected to the bottom of the water tank 52 for discharging the vaporized methacrylic acid material. The distillation column 10 uses a high-pressure tank, and a heating medium is injected into the bottom of the distillation column 10. The heating assembly 20 heats the heating medium to ensure that the temperature inside the distillation column 10 meets the suitable temperature for processing methacrylic acid.

[0025] In practical applications, methacrylic acid is placed in the material placement area of ​​the bottom chamber of the distillation column 10 (via the material box 204 mentioned later), and the heating component 20 is turned on to heat the methacrylic acid and vaporize it. The vaporized methacrylic acid rises to the top chamber of the distillation column 10 and, guided by the top plate 51, enters the gas flow pipe 53 connected to the bottom of the water tank 52, thereby exporting the vaporized methacrylic acid.

[0026] By dividing the distillation column 10 into upper and lower chambers, and installing a heating component 20 and a collection mechanism 50 respectively, the distillation and collection processes of methacrylic acid are separated, making the distillation process more orderly and easier to control and operate. The heating component 20 is dedicated to the distillation process, while the collection mechanism 50 focuses on collecting the vaporized methacrylic acid solution, improving distillation efficiency and the accuracy of product collection.

[0027] like Figure 1 and Figure 2 As shown: The collection mechanism 50 also includes a condensation assembly 54 disposed on one side of the distillation column 10. The condensation assembly 54 includes a riser 541 slidably disposed on one side of the distillation column 10.

[0028] An elevation bracket 541 is installed on one side of the distillation column 10, and the condenser assembly 54 is mounted on the elevation bracket 541. An elevation bracket 541 of appropriate height can be selected according to actual needs to ensure that the condenser assembly 54 can be properly connected to the collection mechanism 50 at the top of the distillation column 10, so that the vaporized methacrylic acid solution can smoothly enter the condenser assembly 54.

[0029] A condenser assembly 54 is installed on one side of the distillation column 10 to cool the vaporized methacrylic acid solution in a timely manner. A riser frame 541 provides a suitable installation position for the condenser assembly 54, making the overall layout of the unit more rational, facilitating the flow of vaporized materials and the condensation process, and improving the overall stability and functionality of the unit.

[0030] like Figure 2 and Figure 3 As shown: A cold water tank 542 is installed on one side of the riser 541 via a limiter. The cold water tank 542 is used to provide a cooling medium for the vaporized methacrylic acid solution. The cold water tank 542 is equipped with a meandering serpentine condenser tube 543. One end of the serpentine condenser tube 543 is connected to the gas flow pipe 53, and the tail end of the serpentine condenser tube 543 is connected to a liquid guide tube 544 via a straight connector.

[0031] One end of the serpentine condenser 543 is connected to the gas flow pipe 53, allowing the vaporized methacrylic acid solution to enter the serpentine condenser 543. Cold water is injected into the cold water tank 542 as a cooling medium to cool the vaporized methacrylic acid solution in the serpentine condenser 543, causing it to liquefy. The liquefied methacrylic acid solution is then discharged through the liquid guide pipe 544 connected to the tail end of the serpentine condenser 543.

[0032] The cold water tank 542 provides a cooling medium for the vaporized methacrylic acid solution. The meandering design of the serpentine condenser tube 543 increases the contact area and contact time between the vaporized solution and the cooling medium, thereby improving the cooling effect and enabling the vaporized methacrylic acid solution to liquefy more efficiently. The liquid guide tube 544 facilitates the discharge of the liquefied solution, ensuring the smooth progress of the condensation process.

[0033] like Figure 2 and Figure 3 As shown: A storage tank 545 is provided on one side of the cold water tank 542. The storage tank 545 is used to store the condensed methacrylic acid solution. The end of the liquid guide pipe 544 is located at the top of the storage tank 545 through an opening at the top of the storage tank 545, allowing the liquefied methacrylic acid solution to flow into the storage tank 545 for storage. A recovery tank 546 is provided on one side of the storage tank 545 for collecting the methacrylic acid solution flowing in the pipeline during vaporization. The recovery tank 546 is connected to the gas flow pipe 53 through a liquid recovery pipe 547 to collect the methacrylic acid solution flowing in the pipeline during vaporization but not completely entering the condensation component 54.

[0034] The storage tank 545 facilitates the storage of the condensed methacrylic acid solution, enabling subsequent processing and use. The recovery tank 546 recovers any residual methacrylic acid solution within the pipelines, reducing material waste, improving resource utilization, and preventing potential impacts from residual material, thus ensuring normal operation of the equipment. Both the connected gas and liquid pipelines are angled (15° to 55°) to facilitate the flow of methacrylic acid.

[0035] like Figure 1 , Figure 2 and Figure 4 As shown: The heating assembly 20 includes a heating water tank 201 installed on the outside of the distillation column 10, which is connected to a circulating heat dissipation water pipe 202 inside the distillation column 10. Hot water or other heating medium is injected into the heating water tank 201, and heat is transferred to the inside of the distillation column 10 through the circulating heat dissipation water pipe 202 to heat the methacrylic acid material.

[0036] By connecting the heating water tank 201 with the circulating heat dissipation water pipe 202 for heating, the heat can be evenly distributed inside the distillation column 10, avoiding local overheating or uneven heating, ensuring the stability and reliability of the methacrylic acid distillation process, and improving the distillation quality.

[0037] like Figure 2 and Figure 4 As shown: Inside the distillation column 10, a material box 204 is mounted by a fixing block 203, and the material box 204 is located in the inner ring of the circulating heat dissipation water pipe 202. The methacrylic acid material is placed into the material box 204, and the material in the material box 204 is heated by the heat emitted by the circulating heat dissipation water pipe 202.

[0038] The material box 204 facilitates the placement and management of methacrylic acid materials. By placing the material box 204 in the inner ring of the circulating heat dissipation water pipe 202, the heat dissipated by the circulating heat dissipation water pipe 202 can be utilized more fully, improving heating efficiency and enabling the material to reach the vaporization temperature more quickly, thus accelerating the distillation process.

[0039] like Figure 2 and Figure 4 As shown: Several temperature sensors 30 are installed inside the chamber at the bottom of the distillation column 10 to monitor the internal temperature of the distillation column 10 in real time. When the temperature is too high or too low, the power or other parameters of the heating component 20 can be adjusted in time to ensure that the distillation process is carried out within a suitable temperature range. A feed port 40 is connected to the chamber at the top of the distillation column 10 for introducing material into the material tank 204. Methacrylic acid is introduced into the material tank 204 through the feed port 40.

[0040] Temperature sensor 30 enables real-time monitoring of the temperature inside distillation column 10, providing operators with accurate temperature information to facilitate timely adjustment of distillation process parameters and ensure distillation efficiency and product quality. Feed port 40 facilitates material addition, making the entire distillation process more convenient and improving the operational flexibility of the equipment.

[0041] The method of using this invention is as follows: First, add an appropriate amount of water to the bottom cavity of the heating water tank 201 and the distillation column 10 to provide a heat medium for the subsequent heating process. Then, seal the distillation column 10 to create a high-pressure environment inside the distillation column 10, using the high pressure to raise the boiling point of the water. Then, add sufficient cold water to the cold water tank 542 as a medium for cooling the vaporized methacrylic acid solution.

[0042] The methacrylic acid to be distilled is slowly introduced into the material tank 204 through the feed port 40 on the top chamber of the distillation column 10. After the material is added, the feed port is closed, and then the heating equipment associated with the heating water tank 201 is turned on to raise the temperature of the water in the heating water tank 201. The hot water transfers heat to the heating medium in the bottom chamber of the distillation column 10 through the circulating heat dissipation water pipe 202, which is connected to the inside of the distillation column 10. The heat is then transferred to the material tank 204 through the circulating water pipe and other heating media, thereby heating the methacrylic acid material in the material tank 204. Based on the boiling point of methacrylic acid (approximately 161°C), the internal temperature of the distillation column 10 is controlled within a suitable range to ensure that the methacrylic acid can be successfully vaporized.

[0043] As the temperature rises, the methacrylic acid in the material tank 204 gradually vaporizes. The vaporized methacrylic acid rises to the chamber at the top of the distillation column 10. The vaporized methacrylic acid is then discharged from the distillation column 10 through the gas flow pipe 53 connected to the water tank 52 at the bottom of the guide plate. The discharged vaporized methacrylic acid enters the serpentine condenser 543 connected to the gas flow pipe 53. Since the serpentine condenser 543 is located in the cold water tank 542, the vaporized methacrylic acid exchanges heat with the cold water during its flow within the serpentine condenser 543, gradually cooling and liquefying. The liquefied methacrylic acid solution flows through the liquid guide pipe 544 connected to the tail end of the serpentine condenser 543 into the liquid storage tank 545 located on one side of the cold water tank 542 for storage.

[0044] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A methacrylic acid distillation apparatus, comprising a distillation column (10), characterized in that: The distillation tower (10) is divided into upper and lower chambers. A heating component (20) is connected to the chamber at the bottom of the distillation tower (10) for distilling methacrylic acid. A collection mechanism (50) is provided in the chamber at the top of the distillation tower (10) for collecting the methacrylic acid solution. The collection mechanism (50) includes a top plate (51) at the top of the distillation tower (10). A water tank (52) is provided at the bottom of the top plate (51). A gas flow pipe (53) is connected to the bottom of the water tank (52) for discharging the vaporized methacrylic acid material.

2. The methacrylic acid distillation apparatus as described in claim 1, characterized in that: The collection mechanism (50) also includes a condensation assembly (54) disposed on one side of the distillation column (10), the condensation assembly (54) including a riser (541) installed on one side of the distillation column (10).

3. The methacrylic acid distillation apparatus as described in claim 2, characterized in that: A cold water tank (542) is provided on one side of the riser (541). The cold water tank (542) is used to provide a cooling medium for the vaporized methacrylic acid solution. The cold water tank (542) is provided with a meandering serpentine condenser (543). One end of the serpentine condenser (543) is connected to a gas flow pipe (53), and the tail end of the serpentine condenser (543) is connected to a liquid guide pipe (544).

4. The methacrylic acid distillation apparatus as described in claim 3, characterized in that: A liquid storage tank (545) is provided on one side of the cold water tank (542). The liquid storage tank (545) is used to store the condensed methacrylic acid solution. The end of the liquid guide pipe (544) is connected to the top of the liquid storage tank (545). A recovery tank (546) is provided on one side of the liquid storage tank (545) for collecting the methacrylic acid solution flowing in the gas flow pipe (53) during vaporization. The recovery tank (546) is connected to the gas flow pipe (53) through a liquid recovery pipe (547).

5. The methacrylic acid distillation apparatus as described in claim 1, characterized in that: The heating assembly (20) includes a heating water tank (201) installed on the outside of the distillation column (10), and the heating water tank (201) is connected to a circulating heat dissipation water pipe (202) inside the distillation column (10).

6. The methacrylic acid distillation apparatus as described in claim 1, characterized in that: Inside the distillation column (10), a material box (204) is mounted by a fixing block (203), and the material box (204) is located in the inner ring of the circulating heat dissipation water pipe (202).

7. The methacrylic acid distillation apparatus as described in claim 6, characterized in that: Several temperature sensors (30) for monitoring the internal temperature of the distillation column (10) are installed inside the chamber at the bottom of the distillation column (10), and a feeding port (40) for introducing materials into the material box (204) is connected to the chamber at the top of the distillation column (10).

Images