Separation and extraction device for benzene hydrogenation production

Abstract

The utility model relates to the technical field of extraction devices, in particular to a separation and extraction device for benzene hydrogenation production, which comprises an extraction tower and a plurality of fixing plates, the plurality of fixing plates are uniformly arranged on the inner wall of the extraction tower, and a steam pipe is arranged in the extraction tower. According to the separation and extraction device for benzene hydrogenation production, an electric push rod is started to push a pull ring and a plurality of pull rods to move upwards, the plurality of pull rods drive a plurality of sliding blocks to slide upwards, a plurality of sliding blocks are driven to slide upwards, a plurality of sliding blocks are driven to slide upwards, a plurality of sliding blocks are driven to slide upwards, and a plurality of sliding blocks are driven to slide upwards; the guide blocks enable the sliding blocks to keep linear movement during sliding, the sliding blocks can push the push blocks to move upwards during movement, the push blocks push the grid plates to rotate, gaps are formed among the multiple grid plates, and therefore the raw material passing distance can be increased, the raw material flowing speed can be increased, and the raw material flowing adjusting function can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of extraction device technology, specifically a separation and extraction device for benzene hydrogenation production. Background Technology

[0002] The separation and extraction unit for benzene hydrogenation production is a key piece of equipment used to separate and purify the product in the benzene hydrogenation process. Its main function is to separate the target product from the mixture after the benzene hydrogenation reaction and to realize the recycling of solvent or extractant, so as to ensure the high efficiency and economy of the production process.

[0003] In the prior art, such as the extractive distillation apparatus in the crude benzene hydrogenation refining process disclosed in CN207024674U, the preheating coil is set to preheat the added raw material to facilitate subsequent distillation. The umbrella-shaped baffle is set to facilitate the full expansion of the raw material after it enters, which facilitates benzene evaporation. The steam nozzle is set at an angle to prevent benzene liquid from entering the steam nozzle. The reboiler is set to allow the insufficiently evaporated benzene liquid to be re-evaporated and returned to the tower through the reboiler reflux pipe to ensure separation purity.

[0004] This device uses umbrella-shaped baffles to reduce the flow rate of the raw material and increase the contact area between the raw material and water vapor, thereby improving the extraction efficiency of the raw material. However, when liquid adheres to the surface of the umbrella-shaped baffle, the holes of the umbrella-shaped baffle will be filled with liquid, which will reduce the downward flow speed of the raw material. If the raw material stays for too long, a thick liquid film will form, which will hinder the full contact between the subsequent raw material and water vapor, thus reducing the extraction efficiency. We propose a separation and extraction device for benzene hydrogenation production. Utility Model Content

[0005] One of the technical problems this application aims to solve is that the umbrella-shaped baffle cannot adjust the rate at which the raw material passes through, resulting in the formation of a liquid film on the surface of the baffle and reducing the extraction efficiency.

[0006] To address the aforementioned technical problems, this application provides a separation and extraction device for benzene hydrogenation production, comprising an extraction tower and multiple fixed plates. The multiple fixed plates are evenly arranged on the inner wall of the extraction tower. A steam pipe is provided inside the extraction tower. An adjusting element for regulating the flow of raw materials is provided inside the fixed plates. A draining element for draining liquid is provided on the inner wall of the extraction tower.

[0007] Preferably, the adjusting component includes multiple grid plates that are rotatably connected to the inside of the fixed plate in a uniform distribution. Two symmetrically distributed push blocks are provided at the lower edge of the grid plates. Multiple uniformly distributed sliders are slidably connected inside the fixed plate. Multiple uniformly distributed sliding grooves are provided on the side of the sliders near the grid plates. The push blocks slide inside the sliding grooves. The extraction tower is provided with a driving component for moving the sliders. The fixed plate is provided with a guide component for stabilizing the sliding of the sliders.

[0008] Preferably, the driving component includes a pull rod rotatably connected to the upper end of the slider, and a plurality of evenly distributed pull rings and electric push rods are slidably connected to the outer periphery of the steam pipe. The upper end of the pull rod is rotatably connected to the outer periphery of the pull ring, and the lower end of the electric push rod is located at the upper edge of the pull ring.

[0009] Preferably, the guide includes guide blocks radially distributed inside the fixed plate, and the lower part of the slider is slidably connected to the upper part of the guide blocks.

[0010] Preferably, the draining component includes a plurality of evenly distributed partitions disposed at the edge of the fixed plate, a draining plate rotatably connected inside the partitions, a magnet one disposed in the center of the draining plate, a magnet two disposed in the center of the partitions, and coil springs disposed at both ends of the edge of the draining plate, with the edges of the coil springs disposed inside the partitions.

[0011] Preferably, the extraction tower is provided with a feed pipe at the top and a single nozzle at the bottom. A condenser and a steam generator are provided on the left side of the extraction tower, and a reboiler is provided on the lower right side. The condenser and the reboiler are both connected to the outer wall of the extraction tower and penetrate the extraction tower through pipes. The lower right side of the steam generator is located at the lower end of the steam pipe, which penetrates the middle of multiple fixed plates. Multiple evenly distributed four-pronged nozzles are provided on the outer periphery of the steam pipe.

[0012] Preferably, the lower end of the feed pipe is provided with a ring pipe, which is located in the upper part of the interior of the extraction tower, and the lower part of the ring pipe is provided with a plurality of evenly distributed long nozzles.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. Start the electric actuator to push the pull ring and multiple pull rods upward. The multiple pull rods drive multiple sliders to slide upward. The guide block keeps the sliders moving in a straight line. When the sliders move, they push the push block upward. The push block pushes the grid plate to rotate, creating gaps between the multiple grid plates. This increases the distance the raw material passes through and speeds up the flow of the raw material.

[0015] 2. When the raw material pushes the drain plate to rotate and open the outlet, the raw material flows downward. At this time, the rotation of the drain plate will coil the spring, causing the spring to contract. After the raw material falls, the spring rebounds and pushes the drain plate to rotate in the opposite direction to return to its original position. Magnet one attracts magnet two, causing the drain plate to close the outlet, thereby realizing the function of automatic discharge of raw materials. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the extraction tower structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the slider structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the drain plate structure of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle;

[0021] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0022] In the diagram: 1. Extraction tower; 11. Fixed plate; 12. Steam pipe; 13. Feed pipe; 131. Circular pipe; 132. Long nozzle; 14. Condenser collector; 15. Steam generator; 16. Reboiler separator; 17. Four-way nozzle; 18. Single nozzle; 2. Adjusting component; 21. Grid plate; 22. Sliding block; 23. Push block; 24. Slide groove; 3. Driving component; 31. Pull rod; 32. Pull ring; 33. Electric push rod; 4. Guide component; 41. Guide block; 5. Drainage component; 51. Baffle plate; 52. Drainage plate; 53. Magnet one; 54. Magnet two; 55. Coil spring. Detailed Implementation

[0023] 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.

[0024] Example 1: Please refer to Figure 1-5This utility model provides a technical solution: a separation and extraction device for benzene hydrogenation production, including an extraction tower 1 and multiple fixed plates 11. The multiple fixed plates 11 are evenly arranged on the inner wall of the extraction tower 1. A steam pipe 12 is provided inside the extraction tower 1. An adjusting component 2 for adjusting the passage of raw materials is provided inside the fixed plate 11. A draining component 5 for draining liquid is provided on the inner wall of the extraction tower 1.

[0025] Extraction tower 1 provides space for separation and extraction in the production of benzene hydrogenation. Fixed plate 11 is used to divide the interior of extraction tower 1 into multiple spaces. Steam pipe 12 can transport steam, and the heat of the steam can separate some of the product from the raw material.

[0026] Furthermore, the adjusting component 2 includes multiple grid plates 21 that are evenly distributed and rotatably connected inside the fixed plate 11. Two symmetrically distributed push blocks 23 are provided at the lower edge of the grid plates 21. Multiple evenly distributed sliders 22 are slidably connected inside the fixed plate 11. Multiple evenly distributed grooves 24 are provided on the side of the sliders 22 near the grid plates 21. The push blocks 23 slide inside the grooves 24. The extraction tower 1 is provided with a driving component 3 for driving the sliders 22 to move. The fixed plate 11 is provided with a guide component 4 for stabilizing the sliding of the sliders 22.

[0027] Multiple grid plates 21 have holes distributed on their surfaces, allowing raw materials to pass through. The multiple grid plates 21 are arranged on the surface of the fixed plate 11, which can close the fixed plate 11. This allows the raw materials to be distributed in the upper part of the fixed plate 11, increasing the extraction area of ​​the raw materials. The slider 22 can slide inside the fixed plate 11. By pushing the slider 22 to move, the slider 22 can drive the push block 23 to move. When the push block 23 moves, it can drive the grid plates 21 to rotate inside the fixed plate 11, thereby creating gaps between the multiple grid plates 21, allowing the raw materials to flow downward faster.

[0028] Furthermore, the driving component 3 includes a pull rod 31 rotatably connected to the upper end of the slider 22, and multiple evenly distributed pull rings 32 and electric push rods 33 are slidably connected to the outer periphery of the steam pipe 12. The upper end of the pull rod 31 is rotatably connected to the outer periphery of the pull ring 32, and the lower end of the electric push rod 33 is located at the upper edge of the pull ring 32.

[0029] The lever 31 is used to push the slider 22 to slide. The pull ring 32 can pull multiple levers 31 to move simultaneously. The electric push rod 33 can push the pull ring 32 to move. By activating the electric push rod 33, the pull ring 32 can pull multiple levers 31 to move simultaneously, thereby causing multiple sliders 22 to slide upwards simultaneously.

[0030] Furthermore, the guide 4 includes guide blocks 41 radially distributed inside the fixed plate 11, and the lower part of the slider 22 is slidably connected to the upper part of the guide blocks 41.

[0031] The guide block 41 can keep the slider 22 moving in a straight line when it slides.

[0032] Furthermore, the draining component 5 includes a plurality of evenly distributed partitions 51 disposed at the edge of the fixed plate 11. A draining plate 52 is rotatably connected inside the partitions 51. A magnet 53 is disposed in the middle of the interior of the draining plate 52. A magnet 54 is disposed in the middle of the interior of the partitions 51. A coil spring 55 is disposed at both ends of the edge of the draining plate 52. The edge of the coil spring 55 is disposed inside the partition 51.

[0033] The partition 51 is used to fill the gap between the extraction tower 1 and the fixed plate 11. The drain plate 52 can rotate. When the raw material accumulates on the upper part of the drain plate 52, it can push the drain plate 52 to rotate. Magnet 1 53 and magnet 2 54 are arranged with the same pole facing each other and can attract each other. The coil spring 55 can be driven by the drain plate 52 to coil and contract. When the coil spring 55 rebounds, it can push the drain plate 52 to rotate back to its original position.

[0034] Furthermore, the upper part of the extraction tower 1 is provided with a feed pipe 13, and the lower end of the feed pipe 13 is provided with a single nozzle 18. The left side of the extraction tower 1 is provided with a condenser collector 14 and a steam generator 15, and the lower right side of the extraction tower 1 is provided with a reboiler separator 16. The condenser collector 14 and the reboiler separator 16 are both connected to the outer wall of the extraction tower 1 and penetrate the extraction tower 1 through pipes. The lower right side of the steam generator 15 is provided at the lower end of the steam pipe 12. The steam pipe 12 penetrates the middle of multiple fixed plates 11, and multiple evenly distributed four-pronged nozzles 17 are provided on the outer periphery of the steam pipe 12.

[0035] The feed pipe 13 is the channel for injecting raw materials into the extraction tower 1 and discharging them through a single nozzle 18. The condenser collector 14 can cool and liquefy the vaporized purified material into a liquid and store it. The steam generator 15 is used to generate water vapor and deliver it to the interior of the extraction tower 1 through the steam pipe 12, and then discharge it through a four-way nozzle 17. The reboiler separator 16 is used to collect the raw materials flowing at the bottom of the extraction tower 1 with reduced temperature, and purify and store some of the raw materials by reheating them.

[0036] During operation, the raw material can be conveyed through the feed pipe 13 and discharged through the single nozzle 18. It flows onto the upper part of the fixed plate 11 and is then distributed on the upper part of multiple grid plates 21. The raw material can penetrate downwards and be distributed on the surface of the lower grid plates 21. When the steam generator 15 supplies water vapor to the steam pipe 12, it can enter the interior of the extraction tower 1 through multiple four-way nozzles 17. Then, the raw material and water vapor exchange heat, causing some of the extract to evaporate and enter the interior of the condenser collector 14 for liquefaction and collection. Some of the raw material flows into the bottom of the extraction tower 1 and then enters the interior of the reboiler separator 16. Through reheating, some of the raw material is purified and stored. In this process, in order to accelerate the efficiency of the raw material flowing downwards, the electric push rod 33 is activated to push the pull ring 32 and multiple pull rods 31 to move upwards. The multiple pull rods 31 drive multiple sliders 22 to slide upwards. The guide block 41 keeps the slider 22 moving in a straight line when sliding. When the slider 22 moves, it pushes the push block 23 to move upwards. The push block 23 pushes the grid plate 21 to rotate, creating gaps between the multiple grid plates 21. This increases the distance the raw material passes through and accelerates the flow rate of the raw material.

[0037] During the raw material extraction process, the raw material in the upper space of the fixed plate 11 will flow on the surface of the fixed plate 11 and accumulate around the upper part of the fixed plate 11. When too much raw material accumulates, the weight of the raw material exerted on the drain plate 52 is greater than the attraction between magnet 2 54 and magnet 1 53. The raw material can push the drain plate 52 to rotate and open the outlet. When the raw material flows downward, the rotation of the drain plate 52 will coil the coil spring 55, causing the coil spring 55 to contract. After the raw material falls, the coil spring 55 rebounds and pushes the drain plate 52 to rotate back to its original position. Magnet 1 53 attracts magnet 2 54 to close the outlet of the drain plate 52, thereby realizing the function of automatic discharge of raw materials.

[0038] Example 2: Please refer to Figure 6 Based on Embodiment 1, this utility model provides another technical solution: a ring pipe 131 is provided at the lower end of the feed pipe 13, the ring pipe 131 is provided in the upper part of the interior of the extraction tower 1, and a plurality of evenly distributed long nozzles 132 are provided at the lower part of the ring pipe 131.

[0039] After the raw material enters the ring pipe 131 through the feed pipe 13, it will be sprayed in a scattering manner on the surface of the upper fixed plate 11 through the long nozzle 132, which can make the raw material quickly distributed on the surface of the fixed plate 11 and the steam pipe 12. At the same time, this also increases the contact heat exchange efficiency between the raw material and the steam.

[0040] 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.

[0041] 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.

Claims

1. A separation and extraction apparatus for benzene hydrogenation production, comprising an extraction tower (1) and a plurality of fixed plates (11), characterized in that: Multiple fixing plates (11) are evenly arranged on the inner wall of the extraction tower (1). A steam pipe (12) is provided inside the extraction tower (1). An adjusting component (2) for regulating the passage of raw materials is provided inside the fixing plate (11). A draining component (5) for draining liquid is provided on the inner wall of the extraction tower (1).

2. The separation and extraction apparatus for benzene hydrogenation production according to claim 1, characterized in that: The adjusting component (2) includes multiple grid plates (21) that are evenly distributed and rotatably connected inside the fixed plate (11). Two symmetrically distributed push blocks (23) are provided at the lower edge of the grid plate (21). Multiple evenly distributed sliders (22) are slidably connected inside the fixed plate (11). Multiple evenly distributed grooves (24) are provided on the side of the slider (22) near the grid plate (21). The push blocks (23) slide inside the grooves (24). The extraction tower (1) is provided with a driving component (3) for driving the slider (22) to move. The fixed plate (11) is provided with a guide component (4) for stabilizing the sliding of the slider (22).

3. The separation and extraction apparatus for benzene hydrogenation production according to claim 2, characterized in that: The driving component (3) includes a pull rod (31) rotatably connected to the upper end of the slider (22). The outer periphery of the steam pipe (12) is slidably connected with a plurality of evenly distributed pull rings (32) and electric push rods (33). The upper end of the pull rod (31) is rotatably connected to the outer periphery of the pull ring (32), and the lower end of the electric push rod (33) is located at the upper edge of the pull ring (32).

4. The separation and extraction apparatus for benzene hydrogenation production according to claim 2, characterized in that: The guide (4) includes guide blocks (41) arranged radially inside the fixed plate (11), and the lower part of the slider (22) is slidably connected to the upper part of the guide blocks (41).

5. The separation and extraction apparatus for benzene hydrogenation production according to claim 1, characterized in that: The drain component (5) includes a plurality of evenly distributed partitions (51) disposed at the edge of the fixed plate (11). A drain plate (52) is rotatably connected inside the partition (51). A magnet (53) is disposed in the middle of the interior of the drain plate (52). A magnet (54) is disposed in the middle of the interior of the partition (51). A coil spring (55) is disposed at both ends of the edge of the drain plate (52). The edge of the coil spring (55) is disposed inside the partition (51).

6. The separation and extraction apparatus for benzene hydrogenation production according to claim 1, characterized in that: The upper part of the extraction tower (1) is provided with a feed pipe (13), and the lower end of the feed pipe (13) is provided with a single nozzle (18). The left side of the extraction tower (1) is provided with a condenser (14) and a steam generator (15). The lower right side of the extraction tower (1) is provided with a reboiler separator (16). The condenser (14) and the reboiler separator (16) are both connected to the outer wall of the extraction tower (1) and penetrate the extraction tower (1) through pipes. The lower right side of the steam generator (15) is provided at the lower end of the steam pipe (12). The steam pipe (12) penetrates the middle of multiple fixed plates (11). Multiple evenly distributed four-pronged nozzles (17) are provided on the outer periphery of the steam pipe (12).

7. The separation and extraction apparatus for benzene hydrogenation production according to claim 6, characterized in that: The lower end of the feed pipe (13) is provided with a ring pipe (131), which is located in the upper part of the interior of the extraction tower (1). The lower part of the ring pipe (131) is provided with a plurality of evenly distributed long nozzles (132).

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