Diacetone alcohol purification and separation device

Abstract

The utility model discloses a diacetone alcohol purification and separation device, and belongs to the technical field of chemical purification. The device mainly comprises a rectifying tower main body, a reboiler, a condenser, a feed port, an efficient packing layer, a temperature sensor, a pressure sensor, a controller, a return pipe, a regulating valve, a discharge port and a product collecting tank. The mass transfer efficiency is improved by arranging the efficient packing layer in the rectifying tower main body, the heating power of the reboiler and the cooling medium flow of the condenser are automatically adjusted by using the temperature sensor and the pressure sensor for real-time monitoring and cooperating with the controller, automatic control is realized, and meanwhile, the reflux ratio is controlled by adjusting the adjusting valve on the reflux pipe. The device effectively solves the problems of high energy consumption, low separation efficiency and insufficient automation degree in the existing diacetone alcohol purification and separation process, and can improve the product purity, reduce the production cost and reduce the environmental pollution.

Description

Technical Field

[0001] This utility model relates to the field of chemical purification technology, specifically a diacetone alcohol purification and separation device. Background Technology

[0002] Diacetone alcohol is an important organic chemical raw material with wide applications in coatings, inks, adhesives, and other fields. Currently, existing methods for purifying and separating diacetone alcohol mainly include distillation and extraction. However, existing distillation equipment suffers from high energy consumption and low separation efficiency when purifying diacetone alcohol. Traditional distillation columns require a large amount of heat energy to vaporize and condense the mixture. Moreover, because diacetone alcohol has similar boiling points to other impurities, azeotropy easily occurs during distillation, leading to poor separation and difficulty in achieving high product purity standards. While extraction can improve separation efficiency to some extent, it requires a large amount of extractant, increasing production costs and potentially causing environmental pollution. Furthermore, existing separation equipment lacks automation, requiring frequent manual monitoring and operation, increasing labor costs and the risk of operational errors. Therefore, an improved diacetone alcohol purification and separation device is needed to address these problems. Utility Model Content

[0003] The purpose of this invention is to provide a diacetone alcohol purification and separation device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a diacetone alcohol purification and separation device, comprising a distillation column body, a reboiler connected to the bottom of the distillation column body, the reboiler being connected to the interior of the distillation column body through a pipe, used to provide the heat required for vaporization of the mixture in the distillation column; a condenser connected to the top of the distillation column body, the condenser being connected to the interior of the distillation column body through a pipe, so that the vapor rising from the top of the distillation column body is condensed; and a feed inlet is provided on the side of the distillation column body for inputting the diacetone alcohol mixture to be purified.

[0005] Preferably, the main body of the distillation column is provided with a high-efficiency packing layer. The packing is a special structured packing with a large specific surface area and high mass transfer efficiency, which can effectively improve the gas-liquid mass transfer effect in the distillation process and enhance the separation capability.

[0006] Preferably, a temperature sensor and a pressure sensor are installed on the main body of the distillation column. The temperature sensor and the pressure sensor are electrically connected to the controller to monitor the temperature and pressure data in the distillation column in real time and transmit the data to the controller.

[0007] Preferably, the controller is electrically connected to the heating device of the reboiler and the cooling medium flow regulating valve of the condenser. Based on the data fed back by the temperature sensor and the pressure sensor, it automatically adjusts the heating power of the reboiler and the cooling medium flow of the condenser to realize the automated control of the distillation process.

[0008] Preferably, a reflux pipe is connected to the condensate outlet of the condenser, and the reflux pipe is connected to the top of the main body of the distillation column. The reflux ratio is controlled by a regulating valve to improve the separation effect of the distillation column.

[0009] Preferably, a discharge port is provided at the bottom of the main body of the distillation column, and the discharge port is connected to a product collection tank for collecting the purified diacetone alcohol product.

[0010] Compared with the prior art, the present invention provides a diacetone alcohol purification and separation device, which has the following beneficial effects:

[0011] 1. By setting up a high-efficiency packing layer, the gas-liquid contact area is increased, the mass transfer efficiency is improved, and diacetone alcohol can be separated from impurities more fully, effectively improving the purity of the product and solving the problem of low separation efficiency.

[0012] 2. By utilizing the combination of temperature sensors, pressure sensors, and controllers, automatic monitoring and regulation of temperature and pressure during the distillation process are achieved, reducing manual operation costs, minimizing production problems caused by human error, and solving the problem of insufficient automation.

[0013] 3. The rationally designed reflux pipe and regulating valve allow for flexible control of the reflux ratio, further optimizing the distillation process. Simultaneously, the automated adjustment of the reboiler and condenser effectively reduces energy consumption, solving the problem of high energy consumption. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0016] Figure 2 This is a schematic diagram of the connection structure between the temperature sensor and the pressure sensor of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the main body of the distillation column of this utility model;

[0018] Figure 4This is a schematic diagram of the control system of this utility model.

[0019] In the diagram: 1. Main body of the distillation column; 2. Reboiler; 3. Condenser; 4. Feed inlet; 5. High-efficiency packing layer; 6. Temperature sensor; 7. Pressure sensor; 8. Controller; 9. Reflux pipe; 10. Control valve; 11. Discharge port; 12. Product collection tank. 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] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0022] Example:

[0023] Please see Figure 1-4 This utility model provides a technical solution: a diacetone alcohol purification and separation device, including a distillation column body 1, a reboiler 2 connected to the bottom of the distillation column body 1, the reboiler 2 being connected to the interior of the distillation column body 1 through a pipe; a condenser 3 connected to the top of the distillation column body 1, the condenser 3 being connected to the interior of the distillation column body 1 through a pipe; a feed inlet 4 is provided on the side of the distillation column body 1. A high-efficiency packing layer 5 is provided inside the distillation column body 1; a temperature sensor 6 and a pressure sensor 7 are installed on the distillation column body 1, and the temperature sensor 6 and pressure sensor 7 are electrically connected to a controller 8; the controller 8 is electrically connected to the heating device of the reboiler 2 and the cooling medium flow regulating valve of the condenser 3; a reflux pipe 9 is connected to the condensate outlet of the condenser 3, the reflux pipe 9 being connected to the top of the distillation column body 1, and a regulating valve 10 is installed on the reflux pipe 9; a discharge port 11 is provided at the bottom of the distillation column body 1, and the discharge port 11 is connected to a product collection tank 12.

[0024] Working Principle: The diacetone alcohol mixture to be purified enters the main body 1 of the distillation column through inlet 4. The reboiler 2 heats the mixture at the bottom of the distillation column, causing partial vaporization. The vapor rises and enters the distillation column. The rising vapor comes into full contact with the liquid flowing downwards at the high-efficiency packing layer 5, undergoing mass and heat transfer. Due to the different volatility of diacetone alcohol and impurities, after multiple gas-liquid mass transfers, the lighter components gradually accumulate upwards, while the heavier components gradually accumulate downwards. The vapor rising to the top of the distillation column enters the condenser 3 and is condensed into liquid. Part of the condensate flows back to the top of the distillation column through the reflux pipe 9, controlled by the regulating valve 10, while the other part is discharged as the top product. The liquid at the bottom of the distillation column continuously circulates and vaporizes under the action of the reboiler 2, and finally, the purified diacetone alcohol product is discharged from the outlet 11. Throughout the process, temperature sensor 6 and pressure sensor 7 monitor the temperature and pressure data inside the distillation column in real time and transmit the data to controller 8. Controller 8 automatically adjusts the heating power of reboiler 2 and the cooling medium flow rate of condenser 3 according to preset parameters to ensure that the distillation process proceeds stably and efficiently.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A diacetone alcohol purification separation apparatus, characterized by, Including rectifying tower main body (1), high efficiency filler layer (5) is equipped inside rectifying tower main body (1), temperature sensor (6) and pressure sensor (7) are installed on rectifying tower main body (1), temperature sensor (6) and pressure sensor (7) are electrically connected with controller (8) respectively.

2. A diketone purification and separation apparatus according to claim 1, wherein, The top of the rectifying tower main body (1) is connected with a condenser (3), which is communicated with the inside of the rectifying tower main body (1) through a pipeline.

3. A diketone purification and separation apparatus as claimed in claim 1, wherein, The controller (8) is electrically connected with the heating device of the reboiler (2) and the cooling medium flow regulating valve of the condenser (3).

4. The diketone purification and separation apparatus of claim 1, wherein, The bottom of the rectifying tower main body (1) is connected with a reboiler (2), which is communicated with the inside of the rectifying tower main body (1) through a pipeline, and the side of the rectifying tower main body (1) is provided with a feed inlet (4).

5. A diketone purification and separation apparatus as claimed in claim 2, wherein, The condensate outlet of the condenser (3) is connected with a reflux pipe (9), which is communicated with the top of the rectifying tower main body (1), and the reflux pipe (9) is provided with a regulating valve (10).

6. A diketone purification and separation apparatus as claimed in claim 1, wherein, The bottom of the rectifying tower main body (1) is provided with a discharge outlet (11), and the discharge outlet (11) is connected with a product collecting tank (12).

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