Separation and purification device for methyl heptenone

Abstract

The utility model relates to the technical field of separation and purification devices, and discloses a separation and purification device for methyl heptenone, which comprises a preheating tank, a water inlet pipe and a water outlet pipe, and the motor is arranged at the bottom of the preheating tank, a rotor of the motor is coaxially provided with a rotating rod, the rotating rod is located in the preheating tank, cleaning frames are evenly distributed on the surface of the rotating rod, and cleaning plates are installed on the surfaces of the cleaning frames. Clean water can be injected into the preheating tank through a water inlet pipe, and a motor is started to drive a rotating rod to rotate, so that a cleaning frame can be driven to rotate to scatter the clean water, and a water body is driven to flow along the interior of the preheating tank, so that residual raw materials in the preheating tank can be scoured; and raw materials adsorbed on the inner wall of the preheating tank can be scraped off through the cleaning plate, the situation that residues are coked or crystallized on the pipe wall to reduce the heat transfer area is avoided, and therefore the preheating efficiency of the preheating tank can be improved.

Description

Technical Field

[0001] This utility model relates to the field of separation and purification equipment technology, specifically to a separation and purification equipment for methylheptenone. Background Technology

[0002] Separation and purification devices typically employ a continuous distillation and solvent extraction coupled system. The main body is constructed of corrosion-resistant materials and includes a preheater, a high-efficiency packed tower, a condenser and reflux device, and a vacuum temperature control module. By precisely adjusting the number of trays, reflux ratio, and operating pressure, combined with multi-stage countercurrent solvent extraction, byproducts are selectively separated. Finally, high-purity methylheptenone is prepared through condensation crystallization or molecular sieve adsorption.

[0003] Common separation and purification devices typically require heating the methylheptenone feedstock to a suitable temperature in a preheating tank to reduce viscosity and improve fluidity before injecting the preheated methylheptenone feedstock into a high-efficiency packed distillation column for separation and purification.

[0004] However, in actual production, after the preheating tank completes the preheating treatment of a batch of raw materials, some raw materials often remain on its inner wall. If these residual raw materials are not cleaned in time, they will gradually coke or crystallize on the inner wall of the preheating tank, which will reduce the effective heat transfer area of ​​the preheating tank, resulting in less heat absorbed by subsequent raw materials during the preheating process and reducing the preheating efficiency of the device. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a separation and purification device for methylheptenone, which solves the problem mentioned in the background art that after the preheating tank completes the preheating treatment of a batch of raw materials, some raw materials often remain on its inner wall. If these residual raw materials are not cleaned in time, they will gradually coke or crystallize on the inner wall of the preheating tank, reducing the effective heat transfer area of ​​the preheating tank, resulting in less heat absorbed by subsequent raw materials during the preheating process and reducing the preheating efficiency of the device.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a separation and purification device for methylheptenone, comprising:

[0009] A preheating tank, wherein a high-efficiency packed distillation column is installed on the opening on the upper surface of the preheating tank, and a support frame is installed at the bottom of the preheating tank;

[0010] A feed pipe is installed at the feed inlet of the preheating tank. A water inlet pipe is installed on the right side of the preheating tank. A heating resistance wire is installed on the inner wall of the preheating tank.

[0011] The motor is located at the bottom of the preheating tank. The rotor of the motor is coaxially mounted with a rotating rod. The rotating rod is located inside the preheating tank. The surface of the rotating rod is evenly covered with cleaning racks, and the surface of each cleaning rack is equipped with a cleaning plate.

[0012] Preferably, a first flange is installed at the feed end of the feed pipe, and a temperature control device is installed on the surface of the preheating tank. The first flange can be connected to the conveying pipe of methyl heptenone raw material, thereby conveying the methyl heptenone raw material to the preheating tank. The temperature in the preheating tank can be controlled by the temperature control device.

[0013] Preferably, the temperature control device integrates a temperature sensor and a controller. The detection head of the temperature sensor is located inside the preheating tank. The temperature sensor can detect the temperature inside the preheating tank, and the controller can control the heat emitted by the heating resistance wire.

[0014] Preferably, a discharge pipe is installed at the bottom of the preheating tank, and an extension pipe is installed at the discharge end of the discharge pipe. The discharge pipe can discharge the residual liquid in the preheating tank to the raw material tank to prevent the residue from decomposing or agglomerating due to prolonged standing and heating. At the same time, it can also discharge the water used for cleaning the preheating tank.

[0015] Preferably, a valve is installed on the surface of the discharge pipe, and a second flange is installed at the connection between the discharge pipe and the extension pipe. The discharge pipe and the extension pipe can be connected through the second flange, and the residual liquid in the preheating tank can be accurately discharged into the raw material tank through the extension pipe.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention provides a separation and purification device for methylheptenone, which has the following beneficial effects:

[0018] The separation and purification device for methyl heptenone allows clean water to be injected into the preheating tank through the inlet pipe. Starting the motor drives the rotating rod to rotate, which in turn drives the cleaning rack to rotate, dispersing the clean water and causing the water to flow along the inside of the preheating tank. This flushes away any residual raw materials in the preheating tank, and the cleaning plate scrapes off the raw materials adsorbed on the inner wall of the preheating tank. This prevents raw materials from remaining in the preheating tank, avoids coking or crystallization of residues on the pipe walls, and reduces the heat transfer area, thereby improving the preheating efficiency of the preheating tank. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the cleaning frame of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation structure of the discharge pipe of this utility model.

[0023] In the diagram: 1. Preheating tank; 2. High-efficiency packed distillation column; 3. Support frame; 4. Feed pipe; 5. Water inlet pipe; 6. Heating resistance wire; 7. Motor; 8. Rotating rod; 9. Cleaning rack; 10. Cleaning plate; 11. First flange; 12. Temperature control device; 13. Discharge pipe; 14. Extension pipe; 15. Valve; 16. Second flange. Detailed Implementation

[0024] 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.

[0025] This utility model provides a technical solution: a separation and purification device for methylheptenone. Please refer to [link to relevant documentation]. Figure 1 It includes a preheating tank 1, an efficient packed distillation column 2 installed on the upper surface opening of the preheating tank 1, and a support frame 3 installed at the bottom of the preheating tank 1;

[0026] The high-efficiency packed distillation column 2 has a layered packing with a distillation section and a stripping section. The distillation section is equipped with a temperature gradient control system to achieve stepwise vaporization based on the boiling point of methylheptenone. Methylheptenone is adsorbed onto the surface of the adsorbent through an internal adsorption device and then eluted by an eluent to achieve separation and purification.

[0027] Feed pipe 4 is located at the feed inlet of preheating tank 1. Please refer to [link / reference]. Figure 2 A water inlet pipe 5 is installed on the right side of the preheating tank 1, and a heating resistance wire 6 is installed on the inner wall of the preheating tank 1.

[0028] The heating resistance wire 6 can preheat the methyl heptenone raw material in the preheating tank 1, and can heat the methyl heptenone raw material to a suitable temperature, reduce viscosity and improve fluidity;

[0029] Motor 7 is located at the bottom of preheating tank 1. A rotating rod 8 is coaxially mounted on the rotor of motor 7. The rotating rod 8 is located inside preheating tank 1. (See [link to relevant documentation]). Figure 3 The surface of the rotating rod 8 is evenly provided with cleaning racks 9, and the surface of each cleaning rack 9 is equipped with a cleaning plate 10.

[0030] Clean water can be injected into the preheating tank 1 through the water inlet pipe 5. Starting the motor 7 can drive the rotating rod 8 to rotate, which in turn drives the cleaning frame 9 to rotate and disperse the clean water. The water will flow along the inside of the preheating tank 1, thereby flushing away the raw materials remaining in the preheating tank 1. The cleaning plate 10 can scrape off the raw materials adsorbed on the inner wall of the preheating tank 1, thereby preventing raw materials from remaining in the preheating tank 1 and preventing residues from coking or crystallizing on the pipe wall, reducing the heat transfer area, and thus improving the preheating efficiency of the preheating tank 1.

[0031] Please see Figure 1 The feed end of the feed pipe 4 is equipped with a first flange 11, and the surface of the preheating tank 1 is equipped with a temperature control device 12. The first flange 11 can be connected to the conveying pipe of methyl heptenone raw material, so as to convey the methyl heptenone raw material to the preheating tank 1. The temperature in the preheating tank 1 can be controlled by the temperature control device 12.

[0032] The temperature control device 12 integrates a temperature sensor and a controller. The detection head of the temperature sensor is located inside the preheating tank 1. The temperature sensor can detect the temperature inside the preheating tank 1, and the controller can control the heat emitted by the heating resistance wire 6.

[0033] Please see Figure 2 The bottom of the preheating tank 1 is equipped with a discharge pipe 13. Please refer to [link / reference]. Figure 4 The discharge end of the discharge pipe 13 is equipped with an extension pipe 14. The discharge pipe 13 can discharge the residual liquid in the preheating tank 1 to the raw material tank to prevent the residue from decomposing or agglomerating due to prolonged standing and heating. At the same time, it can also discharge the water used to clean the preheating tank 1.

[0034] A valve 15 is installed on the surface of the discharge pipe 13. A second flange 16 is installed at the connection between the discharge pipe 13 and the extension pipe 14. The discharge pipe 13 and the extension pipe 14 can be connected through the second flange 16. The residual liquid in the preheating tank 1 can be accurately discharged into the raw material tank through the extension pipe 14.

[0035] In operation, this scheme works as follows: First, the preheating tank 1 heats the methylheptenone raw material to a suitable temperature, reducing its viscosity and improving its fluidity. The preheated raw material is then injected into the high-efficiency packed distillation column 2. The high-efficiency packed distillation column 2 has a layered packing with a distillation section and a stripping section. The distillation section is equipped with a temperature gradient control system to achieve stepwise vaporization based on the boiling point of methylheptenone. Methylheptenone is adsorbed onto the surface of the adsorbent through an internal adsorption device, and then eluted with an eluent to achieve separation and purification. Clean water is then injected into the preheating tank 1 through the water inlet pipe 5. Starting the motor 7 drives the rotating rod 8 to rotate... The cleaning rack 9 can rotate to disperse the clean water and cause the water to flow along the inside of the preheating tank 1, thereby flushing away the raw materials remaining in the preheating tank 1. The cleaning plate 10 can scrape off the raw materials adsorbed on the inner wall of the preheating tank 1, thus preventing the raw materials from remaining in the preheating tank 1 and preventing the residues from coking or crystallizing on the pipe wall, reducing the heat transfer area and improving the preheating efficiency of the preheating tank 1. Finally, the discharge pipe 13 can discharge the residual liquid in the preheating tank 1 to the raw material tank to prevent the residues from decomposing or agglomerating due to prolonged standing and heating, and at the same time, it can also discharge the water used to clean the preheating tank 1.

[0036] 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 process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A separation and purification apparatus for methylheptenone, characterized in that, include: A preheating tank (1) is provided with an opening on the upper surface of the preheating tank (1) and a high-efficiency packed distillation column (2) is installed thereon. A support frame (3) is installed at the bottom of the preheating tank (1). A feed pipe (4) is provided at the feed inlet of the preheating tank (1). A water inlet pipe (5) is installed on the right side of the preheating tank (1). A heating resistance wire (6) is installed on the inner wall of the preheating tank (1). A motor (7) is located at the bottom of the preheating tank (1). The rotor of the motor (7) is coaxially mounted with a rotating rod (8). The rotating rod (8) is located inside the preheating tank (1). A cleaning rack (9) is evenly distributed on the surface of the rotating rod (8). A cleaning plate (10) is installed on the surface of the cleaning rack (9).

2. The separation and purification apparatus for methylheptenone according to claim 1, characterized in that: The feed pipe (4) is equipped with a first flange (11) at the feed end, and the preheating tank (1) is equipped with a temperature control device (12) on its surface.

3. The separation and purification apparatus for methylheptenone according to claim 2, characterized in that: The temperature control device (12) integrates a temperature sensor and a controller, and the detection head of the temperature sensor is located inside the preheating tank (1).

4. The separation and purification apparatus for methylheptenone according to claim 1, characterized in that: The bottom of the preheating tank (1) is equipped with a discharge pipe (13), and the discharge end of the discharge pipe (13) is equipped with an extension pipe (14).

5. The separation and purification apparatus for methylheptenone according to claim 4, characterized in that: A valve (15) is installed on the surface of the discharge pipe (13), and a second flange (16) is installed at the connection between the discharge pipe (13) and the extension pipe (14).

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