Rectification device for deep processing of benzene hydrogenation crude cyclopentane

Abstract

The present application provides a rectification device for deep processing of benzene hydrogenation crude cyclopentane, and belongs to the technical field of deep processing and purification of benzene hydrogenation crude cyclopentane, comprising a liquid redistribution mechanism, which comprises a rectification tower, a groove disc is fixedly arranged in the middle of the rectification tower, a plurality of L-shaped grooves are formed in the groove disc, the plurality of L-shaped grooves form a first-stage liquid distribution groove, a second-stage liquid distribution groove composed of two groove plates is arranged in the inner cavity of each L-shaped groove, a liquid collecting plate is arranged on the upper part of each groove plate, and a separation assembly is arranged at the lower end of each groove plate, the separation assembly is used for adjusting the distance between the two groove plates and preventing the channel from being blocked; a cleaning mechanism, which comprises a scraper slidingly arranged on the inner side wall of the two groove plates, telescopic rods are fixedly arranged at both ends of the scraper, and lifting assemblies are arranged at both ends of the scraper, the lifting assemblies are used for scraping and cleaning the scale on the inner surface of the groove plate. The present application achieves the effect of preventing polymer or large particles from blocking and causing shutdown and cleaning.

Description

Technical Field

[0001] This invention belongs to the technical field of deep processing and purification of crude cyclopentane by benzene hydrogenation, specifically relating to a distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation. Background Technology

[0002] In recent years, distillation units have generally adopted multi-stage liquid distribution structures to achieve uniform distribution and mass transfer separation of materials. The core components include distillation columns, trays, distribution tanks, and other key components. The multi-stage distribution design improves distillation efficiency.

[0003] However, in practical industrial applications, the unsaturated hydrocarbons such as cyclopentadiene contained in crude cyclopentane feedstock are prone to polymerization reactions under the localized high-temperature environment of the distillation column, forming polymers (commonly known as "coking"). Simultaneously, trace amounts of catalyst powder and other solid particles carried by the material easily deposit, leading to blockage of the distribution tank channels. Existing equipment typically requires shutdown and disassembly for cleaning after blockage, severely impacting production continuity. Furthermore, scale and polymer residues adhering to the inner walls of the distribution tank inevitably remain over long-term use, reducing the uniformity of liquid distribution and consequently affecting the distillation and purification effect. Summary of the Invention

[0004] The purpose of this invention is to provide a distillation apparatus for the deep processing of crude cyclopentane by benzene hydrogenation, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation includes a liquid redistribution mechanism, comprising a distillation column. A tray is fixedly installed in the middle of the distillation column. Several L-shaped grooves are formed on the tray, and the several L-shaped grooves form a primary liquid distribution channel. Each of the several L-shaped grooves has a secondary liquid distribution channel composed of two groove plates inside its cavity. A liquid collection plate is provided on the upper part of each of the several groove plates, and a separation component is provided at the lower end of each of the several groove plates. The separation component is used to adjust the distance between the two groove plates to prevent channel blockage. The cleaning mechanism includes a scraper that is slidably mounted on the inner sidewalls of two trough plates. Both ends of the scraper are fixedly equipped with telescopic rods, and both ends of the scraper are equipped with lifting components. The lifting components are used to enable the scraper to scrape and clean the scale on the inner surface of the trough plates. The striking mechanism includes several vibrating hammers fixed at both ends of the liquid collection plate, and a transmission component is provided on one side of each of the vibrating hammers. The transmission component is used to make the vibrating hammers strike the trough plate and the liquid collection plate.

[0006] As a preferred embodiment of the distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation of the present invention, the separation component includes a protective chamber fixedly disposed in the middle of the lower surface of the tank plate, a screw rotatably disposed in the middle of the inner cavity of the protective chamber, a servo motor disposed at one end of the screw, and a plurality of horizontal sliders threadedly connected to the screw, the plurality of horizontal sliders being disposed at the lower end of each group of tank plates.

[0007] As a preferred embodiment of the distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation of the present invention, the end of the horizontal slider away from the servo motor is provided with an inclined surface. The inclined surface is used to push the slot plate located at one end of the servo motor to move along the screw axis, thereby realizing the separation of the two slot plates. A push plate is fixedly provided on the upper part of the end of the horizontal slider away from the inclined surface. The push plate is used to push the slot plate located at one end of the servo motor to reset and fix it.

[0008] As a preferred embodiment of the distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation of the present invention, the protective chamber is provided with a plurality of slots, and the plurality of slots are provided with open slots on the side of the servo motor. The plurality of slots and open slots are respectively provided at the lower end of each group of slot plates, and the cavity of the plurality of slots is provided with insert rods. The plurality of insert rods are respectively fixedly provided in the middle of the lower surface of the slot plate on the side away from the servo motor, thereby realizing the longitudinal limiting of the slot plate on the side away from the servo motor. The cavity of the plurality of open slots is slidably connected to the slot plates on the side of the servo motor, thereby realizing the lateral limiting of the slot plates on the side of the servo motor.

[0009] As a preferred embodiment of the distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation of the present invention, the lifting assembly includes a square outer plate fixedly disposed at both ends of several slot plates. A square inner plate is slidably disposed between the inner cavities of the square outer plates fixedly connected to both ends of each set of slot plates. The lower end of the square inner plate is slidably connected to the outer ring side of the upper surface of the slot plate through a T-shaped sliding groove and a T-shaped sliding rod. A square transverse groove is provided at the lower end of the square inner plate. Square sliders are slidably disposed at both ends of the inner cavity of the square transverse groove. Two square sliders are respectively fixedly connected to the inner sidewall of the square outer plate. A balance rod is movably disposed through the middle of the square slider. The balance rod is fixedly disposed in the middle of the inner cavity of the square transverse groove.

[0010] As a preferred embodiment of the distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation of the present invention, each of the square outer plates is provided with an L-shaped groove on its back, and a fixing block is slidably arranged in the inner cavity of each L-shaped groove. The fixing block is fixedly connected to the supports at both ends of the liquid collecting plate for support and fixation.

[0011] As a preferred embodiment of the distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation of the present invention, an inner groove is provided on the upper part of the square inner plate, and strip-shaped vertical grooves are respectively provided at both ends of the inner groove. The strip-shaped vertical grooves are provided on the upper part of the square inner plate and communicate with the inner cavity of the square horizontal groove.

[0012] As a preferred embodiment of the distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation of the present invention, the inner diameter of the inner groove is the same as the inner diameter of the balance bar, and the inner diameter of the strip vertical groove is the same as the width of the square slider, thereby enabling the balance bar to move longitudinally together with the square slider on the square inner plate.

[0013] As a preferred embodiment of the distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation of the present invention, the transmission assembly includes a fixed plate rotatably disposed on one side of a plurality of vibrating hammers. The plurality of fixed plates are fixedly disposed on the opposite sidewalls of each set of scrapers. A first bevel gear is rotatably disposed on the fixed plate away from the vibrating hammers. The first bevel gear is fixedly connected to the vibrating hammers through a transmission shaft. A second bevel gear is meshed on the side of the first bevel gear away from the vibrating hammers. A spur gear is fixedly disposed on the back of the second bevel gear. A spur rack is meshed on the side of the spur gear away from the fixed plate. The spur rack is fixedly disposed on the back of the square outer sleeve plate.

[0014] As a preferred embodiment of the distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation of the present invention, the second bevel gear is configured with a half tooth, thereby enabling the second bevel gear to drive the first bevel gear to rotate intermittently, and a torsion spring is provided at the rotation point between the vibrating hammer and the fixed plate to enable the vibrating hammer to reciprocate.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By adjusting the spacing between the two trough plates through the separation component, polymers, solid particles and other blockages can be discharged without stopping the machine, thus avoiding shutdowns for cleaning due to channel blockage and ensuring continuous production.

[0016] 2. Through the combined action of the scraping of the cleaning mechanism and the reciprocating hammering of the tapping mechanism, scale and residual polymers on the inner surface of the tank plate and the liquid collection plate are thoroughly removed, thereby improving the uniformity of liquid distribution and ensuring the effect of distillation and purification. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 A schematic diagram of the overall distillation column of a distillation unit for the deep processing of crude cyclopentane by benzene hydrogenation; Figure 2 A schematic diagram showing the location of the liquid distributor inside the distillation column of a distillation unit for the deep processing of crude cyclopentane by benzene hydrogenation. Figure 3A schematic diagram of the liquid distributor in a distillation unit for the deep processing of crude cyclopentane via benzene hydrogenation. Figure 4 A schematic diagram of the L-shaped tank distribution of a distillation unit for the deep processing of crude cyclopentane by benzene hydrogenation; Figure 5 An exploded schematic diagram of the separation component of a distillation unit for the deep processing of crude cyclopentane via benzene hydrogenation.

[0018] Figure 6 A front view schematic diagram of the lifting assembly of a distillation unit for the deep processing of crude cyclopentane by benzene hydrogenation.

[0019] Figure 7 A rear view schematic diagram of the lifting assembly of a distillation unit for the deep processing of crude cyclopentane by benzene hydrogenation.

[0020] Figure 8 A schematic diagram showing the location of the transmission components in a distillation unit for the deep processing of crude cyclopentane via benzene hydrogenation.

[0021] Figure 9 A schematic diagram of the transmission components of a distillation unit for the deep processing of crude cyclopentane by benzene hydrogenation.

[0022] In the diagram: 10. Distillation column; 11. Tray; 12. L-shaped groove; 13. Tray plate; 14. Collection plate; 15. Separation assembly; 151. Protective chamber; 152. Screw; 153. Servo motor; 154. Horizontal slider; 155. Inclined surface; 156. Push plate; 157. Slot; 158. Opening slot; 159. Insert rod; 20. Scraper; 21. Telescopic rod; 22. Lifting assembly; 221. Square outer plate; 222. Square inner plate; 223. Square horizontal groove; 224. Square slider; 225. Balance bar; 226. L-shaped chute; 227. Fixing block; 228. Inner chute; 229. Strip vertical groove; 30. Vibrating hammer; 31. Transmission assembly; 311. Fixing plate; 312. First bevel gear; 313. Second bevel gear; 314. Spur gear; 315. Spur rack. Detailed Implementation

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] Example 1 Reference Figure 1 - Figure 5This is the first embodiment of the present invention. This embodiment provides a distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation, which achieves the effect of preventing blockage caused by polymers or large particles, resulting in shutdown and cleaning. It includes a liquid redistribution mechanism, which includes a distillation column 10. A tray 11 is fixedly arranged in the middle of the distillation column 10. A plurality of L-shaped grooves 12 are opened on the tray 11. The plurality of L-shaped grooves 12 form a primary liquid distribution channel. The inner cavity of each of the plurality of L-shaped grooves 12 is provided with a secondary liquid distribution channel composed of two groove plates 13. A liquid collection plate 14 is provided on the upper part of each of the plurality of groove plates 13. A separation component 15 is provided at the lower end of each of the plurality of groove plates 13. The separation component 15 is used to adjust the distance between the two groove plates 13 to prevent channel blockage. The cleaning mechanism includes a scraper 20 that is slidably mounted on the inner sidewalls of two trough plates 13. Both ends of the scraper 20 are fixedly equipped with telescopic rods 21, and both ends of the scraper 20 are equipped with lifting components 22. The lifting components 22 are used to scrape and clean the scale on the inner surface of the trough plate 13 by the scraper 20. The striking mechanism includes several vibrating hammers 30 fixed at both ends of the liquid collection plate 14. A transmission component 31 is provided on one side of each vibrating hammer 30. The transmission component 31 is used to make the vibrating hammers 30 strike the trough plate 13 and the liquid collection plate 14.

[0025] Specifically, the distillation column 10 is existing technology, and its structural principle will not be elaborated here. The redistribution of liquid in the internal cavity of the distillation column 10 is achieved through the tray 11, the L-shaped groove 12 opened on the tray 11, and the groove plate 13 and the liquid collection plate 14 set on the upper part of the L-shaped groove 12. Since crude cyclopentane contains unsaturated hydrocarbons such as cyclopentadiene, these substances are prone to polymerization reaction under the local high temperature of the distillation column 10, generating polymers commonly known as "coking". At the same time, the material may carry trace amounts of catalyst powder or other solid particles, which can easily cause blockage. The separation component 15 drives each set of groove plates 13 to separate, and then the lifting component 22 drives each set of groove plates 13 to rise and fall, so that the scraper 20 can scrape and clean the inner wall of the groove plate 13. At the same time, the transmission component 31 drives the vibrating hammer 30 to repeatedly knock the liquid collection plate 14 and the groove plate 13, thereby shaking off the residue attached after cleaning.

[0026] Furthermore, the separation assembly 15 includes a protective chamber 151 fixedly disposed in the middle of the lower surface of the tray 11. A screw 152 is rotatably disposed in the middle of the inner cavity of the protective chamber 151. A servo motor 153 is disposed at one end of the screw 152. Several horizontal sliders 154 are threaded onto the screw 152. The horizontal sliders 154 are respectively disposed at the lower end of each group of tray plates 13. An inclined surface 155 is disposed at the end of the horizontal slider 154 away from the servo motor 153. The inclined surface 155 is used to push the tray plate 13 located at the end of the servo motor 153 to move axially along the screw 152, thereby realizing the separation of the two tray plates 13. A push plate 156 is fixedly disposed on the upper part of the end of the horizontal slider 154 away from the inclined surface 155. The push plate 156 is used to push the tray plate 15 ...4 located at the end of the servo motor 153 to move axially along the screw 152, thereby realizing the separation of the two tray plates 13. The slot plate 13 at one end of 53 is reset and fixed. The protective chamber 151 is provided with a number of slots 157. The slots 157 are located on the side of the servo motor 153 and have opening slots 158. The slots 157 and opening slots 158 are respectively located at the lower end of each group of slot plates 13. The slots 157 are provided with insert rods 159 inserted into their inner cavities. The insert rods 159 are respectively fixed in the middle of the lower surface of the slot plate 13 on the side away from the servo motor 153, thereby realizing the longitudinal limitation of the slot plate 13 on the side away from the servo motor 153. The inner cavities of the opening slots 158 are slidably connected to the slot plates 13 on the side of the servo motor 153, thereby realizing the lateral limitation of the slot plates 13 on the side of the servo motor 153.

[0027] In normal operation, the push plate 156 will abut against the slot plate 13 located on the side of the servo motor 153, thereby fixing the two slot plates 13 together. The slot plate 13 on the side away from the servo motor 153 is provided with an opening between the insert rods 159. This slot is used to allow the highest point of the inclined plane 155 to pass through, so that the inclined plane 155 can push the slot plate 13 located on the side of the servo motor 153 to move along the opening slot 158. It should be noted that the servo motor 153 is located on the external maintenance platform of the distillation column 10, and a rain cover is provided on its upper part to increase its service life (not shown in the figure). However, since the rain cover and the servo motor 153 are existing technologies, their structural principles will not be described in detail here.

[0028] In use, the distillation column 10 performs conventional crude cyclopentane distillation. The tray 11 in the middle of the column serves as the basic support structure, and several L-shaped channels 12 formed on it constitute the primary liquid distribution channel. The inner cavity of the L-shaped channel 12 is a secondary liquid distribution channel composed of two channel plates 13. Together with the liquid collection plate 14 on the upper part of the channel plate 13, they complete the redistribution of the liquid in the inner cavity of the distillation column 10, ensuring the uniform distribution of liquid and mass transfer efficiency during the distillation process.

[0029] During distillation, because crude cyclopentane contains unsaturated hydrocarbons, polymers may form under the local high temperature of the distillation column 10. Alternatively, solid particles such as catalyst powder carried in the material may cause channel blockage. Therefore, regular cleaning is required. First, the output end of the servo motor 153 controlled by the PLC drives the screw 152 to rotate. Then, the screw 152 drives several horizontal sliders 154 connected to it to move axially. The inclined surface 155 at one end of the horizontal slider 154 pushes the slot plate 13 located at one end of the servo motor 153 to slide along the opening slot 158. The slot plate 13 on the side away from the servo motor 153 is fixed because the lower end of the insert rod 159 is inserted into the slot 157 of the protective chamber 151, thereby separating the two sets of slot plates 13 and causing some larger particles that block the channel to fall off.

[0030] Then, the PLC controls the servo motor 153 to drive the screw 152 to rotate in the reverse direction, so that the horizontal slider 154 is reset. The push plate 156 at one end pushes the slot plate 13 located on the side of the servo motor 153 to move back along the opening slot 158 ​​until the two slot plates 13 are reset. During this process, the distillation column 10 does not need to be stopped and can carry out distillation operations normally, thereby achieving anti-clogging cleaning of the device and avoiding the situation of stopping the cleaning due to blockage by large particles.

[0031] Example 2 Reference Figure 6 - Figure 8This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a cleaning mechanism for a distillation apparatus used for the deep processing of crude cyclopentane via benzene hydrogenation. This mechanism solves the problem of secondary distribution tank blockage caused by polymer formation due to localized high-temperature polymerization reactions. It includes a lifting assembly 22, comprising square outer plates 221 fixedly disposed at both ends of several tank plates 13. A square inner plate 222 is slidably disposed between the inner cavity of the square outer plates 221, which is fixedly connected to both ends of each group of tank plates 13. The lower end of the square inner plate 222 is slidably connected to the outer ring side of the upper surface of the tank plate 11 via a T-shaped groove and a T-shaped sliding rod. A square transverse groove 223 is formed at the lower end of the square inner plate 222. Square sliders 224 are slidably disposed at both ends of the inner cavity of the square transverse groove 223. Two square sliders 224 are respectively fixedly connected to the inner sidewall of the square outer plates 221. A balance bar 225 is installed through the middle of the 24th section. The balance bar 225 is fixedly installed in the middle of the inner cavity of the square transverse groove 223. Several square outer plates 221 have L-shaped sliding grooves 226 on their backs. Fixing blocks 227 are slidably installed in the inner cavities of the L-shaped sliding grooves 226. The fixing blocks 227 are fixedly connected to the supports at both ends of the liquid collection plate 14 for support and fixation. An inner sliding groove 228 is provided on the upper part of the square inner plate 222. Strip vertical grooves 229 are provided at both ends of the inner sliding groove 228. The strip vertical grooves 229 are located at the upper end of the square inner plate 222 and communicate with the inner cavity of the square transverse groove 223. The inner diameter of the inner cavity of the inner sliding groove 228 is the same as the inner diameter of the balance bar 225. The inner diameter of the strip vertical groove 229 is the same as the width of the square slider 224, so that the balance bar 225 can move longitudinally on the square inner plate 222 together with the square slider 224.

[0032] Specifically, the inner length of the square outer plate 221 is half the length of the square inner plate 222, and the square slider 224 is fixedly installed on the lower part of the inner sidewall of the opening end of the square outer plate 221. This allows the square outer plate 221 to drive the square slider 224 to move on the balance bar 225 when the square inner plate 222 unfolds outward. At the same time, the square outer plate 221, which is fixed to the slot plate 13 on one side of the servo motor 153, moves to one side first. Since the other square outer plate 221 and the other slot plate 13 are limited by the slot 157 and the plug rod 159, the square inner plate is driven by the square slider 224 fixed to the square outer plate 221 on one side of the servo motor 153. 222 moves on the upper surface of the distillation column 10. During this movement, the telescopic rod 21 unfolds together with the moving square outer plate 221. It should be noted that the liquid collecting plate 14 is fixedly connected to the square inner plate 222. Therefore, when the square inner plate 222 moves, the liquid collecting plate 14 will move along with it, so that the liquid collecting plate 14 is always directly above the two trough plates 13, thus not affecting the longitudinal movement of the two trough plates 13. The two fixed blocks 227 are slidably connected to the telescopic rod 21. It should be noted that the telescopic rod 21 is equipped with a compression spring in its inner cavity, so that the telescopic rod 21 can keep the scraper 20 in contact with the inner surface of the trough plate 13 after the trough plate 13 is unfolded.

[0033] In use, the output end of the servo motor 153 is controlled by the PLC to drive the screw 152 to rotate. The screw 152 drives several horizontal sliders 154 connected to it to move axially. The inclined surface 155 of the horizontal slider 154 away from the servo motor 153 passes through the opening on the slot plate 13 away from the servo motor 153, and pushes the slot plate 13 located at the servo motor 153 to slide laterally along the opening slot 158 ​​of the protective chamber 151. The slot plate 13 away from the servo motor 153 is longitudinally limited and fixed because the lower end of the insert rod 159 is inserted into the slot 157 of the protective chamber 151, thereby realizing the separation of the two slot plates 13. During this separation process, the square outer plate 221 located on one side of the servo motor 153 moves outward with the slot plate 13. The square slider 224 fixed at the lower part of its inner wall slides along the balance bar 225 in the square horizontal groove 223 at the lower end of the square inner plate 222. At the same time, it drives the square inner plate 222 to slide smoothly along the T-shaped sliding groove opened on the upper surface of the slot plate 11 on its outer ring side through the T-shaped sliding rod at the lower end. The square outer plate 221 on the other side remains fixed because the slot plate 13 is limited by the slot 157 and the insertion rod 159. At this time, the telescopic rods 21 at both ends of the scraper 20 extend synchronously with the separation of the trough plates 13 due to the compression springs in their inner cavities, ensuring that the scraper 20 is always in close contact with the inner surfaces of the two trough plates 13. Meanwhile, the liquid collection plate 14 slides along the L-shaped groove 226 on the back of the square outer plate 221 through the fixing blocks 227 fixedly connected to the supports at both ends. The liquid collection plate 14 is also fixedly connected to the square inner plate 222 and moves together with the square inner plate 222, always remaining directly above the two trough plates 13, without affecting subsequent cleaning operations. The two fixing blocks 227 and the telescopic rods 21 are all slidably connected, ensuring that the extension and retraction of the telescopic rods 21 and the movement of the liquid collection plate 14 do not interfere with each other.

[0034] Subsequently, when the slot plate 13 located on one side of the servo motor 153 is limited by the opening slot 158, the horizontal slider 154 continues to move, causing the inclined plane 155 to push the abutting slot plate 13 to move upward along the inclined plane 155. During this process, the slot plate 13 will drive the square outer sleeve plate 221 fixed thereto to move upward together. The square slider 224 in the inner cavity of the square outer sleeve plate 221 and the square slider 224 fixed in the inner cavity of another square outer sleeve plate 221 are movably penetrated by the balance rod 225, thereby connecting the two square outer sleeve plates 221 into a whole through the balance rod 225. And because the square The inner diameter of the inner groove 228 at the top of the inner plate 222 is the same as that of the balance bar 225. The inner diameter of the strip vertical groove 229 at both ends is the same as that of the square slider 224. The strip vertical groove 229 is connected to the square horizontal groove 223. Therefore, the balance bar 225 and the square slider 224 slide together along the inner groove 228 and the strip vertical groove 229, thereby driving the other square outer plate 221 and the groove plate 13 fixed thereto to rise and fall synchronously. It should be noted that the lower ends of both square outer plates 221 are open, so as not to affect the rise and fall of the square outer plates 221 along the square inner plate 222.

[0035] During the lifting and lowering of the trough plate 13, the scraper 20, which is slidably connected to its inner side wall, thoroughly scrapes and cleans the attached polymer. The elasticity of the telescopic rod 21 ensures that the force is evenly distributed during the scraping process, avoiding incomplete cleaning due to the displacement of the trough plate 13. It should be noted that the L-shaped groove 12 allows the trough plate 13 to move along its upper long side.

[0036] After cleaning, the servo motor 153, controlled by the PLC, drives the screw 152 to rotate in the reverse direction. The horizontal slider 154 resets along the screw 152, and the push plate 156 on the upper part of the end away from the inclined plane 155 pushes the slot plate 13 located at one end of the servo motor 153 back along the opening slot 158 ​​until the two slot plates 13 are re-attached and fixed. During this reset process, the square outer plate 221 moves back synchronously with the slot plate 13, the square slider 224 slides along the balance bar 225 to the initial position, and the square inner plate 222 also resets through the T-shaped slide groove and T-shaped slide rod; the telescopic rod 21 retracts under the action of the compression spring, driving the scraper 20 back to the initial state. Throughout the cleaning process, the distillation column 10 does not need to be stopped and can continue distillation operations, effectively solving the problem of polymer clogging of the secondary distribution tank and avoiding the losses caused by shutdown cleaning due to clogging.

[0037] Example 3 Reference Figure 7 - Figure 9This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a striking mechanism for a distillation apparatus used in the deep processing of crude cyclopentane via benzene hydrogenation. This mechanism solves the problem of poor cleaning effect caused by adhering particles after scraping. It includes a transmission assembly 31, comprising a fixed plate 311 rotatably mounted on one side of several vibrating hammers 30. Each fixed plate 311 is fixedly mounted on the opposite sidewall of each set of scrapers 20. A first bevel gear 312 is rotatably mounted on the end of the fixed plate 311 away from the vibrating hammers 30. The first bevel gear 312 is fixed to the vibrating hammers 30 via a transmission shaft. The first bevel gear 312 is meshed with a second bevel gear 313 on the side away from the vibrating hammer 30. A spur gear 314 is fixedly mounted on the back of the second bevel gear 313. A spur gear 315 is meshed with the side of the spur gear 314 away from the fixed plate 311. The spur gear 315 is fixedly mounted on the back of the square outer sleeve plate 221. The second bevel gear 313 is configured with half teeth, so that the second bevel gear 313 can drive the first bevel gear 312 to rotate intermittently. A torsion spring is provided at the point where the vibrating hammer 30 rotates with the fixed plate 311 to enable the vibrating hammer 30 to reciprocate.

[0038] Specifically, the fixing plate 311 is fixedly mounted on the scraper 20, so that when the scraper 20 moves, it can drive the entire transmission assembly 31 to move. Since the telescopic rod 21 is always in contact with the surface of the groove plate 13, and the groove plate 13 is fixed to the square outer sleeve plate 221, when the scraper 20 drives the entire transmission assembly 31 to move, the spur gear 314 in the transmission assembly 31 and the spur rack 315 fixed on the square outer sleeve plate 221 will always be in a meshing state. The spur gear 314 and the second bevel gear 313 are both movably connected to the telescopic rod 21, and the spur gear 314 and the second bevel gear 313 are rotatably connected to the fixing plate 311 through the fixing seat. Since the fixing seat is existing technology, it is not shown in the figure, and its structural principle will not be described in detail here.

[0039] In use, the servo motor 153 is controlled by the PLC to drive the screw 152 to rotate. The inclined surface 155 of the horizontal slider 154 pushes the slot plate 13 on one side of the servo motor 153 to slide along the opening slot 158, thus separating it from the slot plate 13 fixed on the other side. At the same time, the square outer plate 221 and the square inner plate 222 move synchronously with the separation of the slot plate 13. The telescopic rod 21 extends due to the compression spring, so that the scraper 20 always adheres to the inner wall of the slot plate 13.

[0040] Subsequently, as the trough plate 13 rises and falls, it drives the square outer sleeve plate 221 to move synchronously. During this process, the square outer sleeve plate 221 will drive the spur rack 315 fixed thereto to move synchronously, thereby causing the spur rack 315 to drive the spur gear 314 to rotate, which in turn drives the second bevel gear 313 fixed thereto to rotate synchronously. Since the second bevel gear 313 is set with half teeth, it will intermittently mesh with the first bevel gear 312 during its rotation: when the teeth of the second bevel gear 313 mesh with the first bevel gear 312, it drives the first bevel gear 312 to rotate synchronously, and then drives the vibrating hammer 30 to rotate through the transmission shaft, and strikes the liquid collection plate 14. At this time, the torsion spring is twisted and stores force; when the toothless part of the second bevel gear 313 rotates to the position opposite to the first bevel gear 312, the meshing relationship is released, the torsion spring releases its elastic force and drives the vibrating hammer 30 to quickly reset, striking the trough plate 13. As the trough plate 13 continues to rise and fall, the rack 315 continuously drives the spur gear 314 to rotate, thereby causing the second bevel gear 313 to repeatedly and intermittently mesh with the first bevel gear 312. The vibrating hammer 30 reciprocates and knocks off the residual particles that are still attached to the inner wall of the trough plate 13 and the lower surface of the liquid collection plate 14 after being scraped off by the scraper 20, ensuring thorough cleaning.

[0041] After cleaning, the servo motor 153, controlled by the PLC, reverses the drive of the screw 152 to reset. The push plate 156 of the horizontal slider 154 pushes the slot plate 13 back, and the square outer plate 221, square inner plate 222, telescopic rod 21, and scraper 20 all return to their initial state. During this reset process, the transmission component 31 moves synchronously with the scraper 20, and the vibrating hammer 30 returns to its initial position under the action of the torsion spring, stopping the striking mechanism. Throughout the process, the distillation column 10 does not need to be stopped, maintaining continuous distillation operations. This effectively solves the problem of poor cleaning effect caused by residual particles after scraping, further improving the anti-clogging stability of the device.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A rectification device for deep processing of benzene hydrogenation crude cyclopentane, characterized in that: include, A liquid redistribution mechanism includes a distillation column (10), in which a tray (11) is fixedly installed in the middle. The tray (11) has several L-shaped grooves (12) formed by the L-shaped grooves (12). The L-shaped grooves (12) form a primary liquid distribution channel. The inner cavity of each L-shaped groove (12) is provided with a secondary liquid distribution channel composed of two plates (13). The upper part of each plate (13) is provided with a liquid collection plate (14). The lower end of each plate (13) is provided with a separation component (15). The separation component (15) is used to adjust the distance between the two plates (13) to prevent the channel from being blocked. The cleaning mechanism includes a scraper (20) that is slidably mounted on the inner sidewalls of two slot plates (13). Both ends of the scraper (20) are fixedly provided with telescopic rods (21), and both ends of the scraper (20) are provided with lifting components (22). The lifting components (22) are used to make the scraper (20) scrape and clean the scale on the inner surface of the slot plate (13). The striking mechanism includes several vibrating hammers (30) fixed at both ends of the liquid collection plate (14). A transmission assembly (31) is provided on one side of each of the vibrating hammers (30). The transmission assembly (31) is used to make the vibrating hammers (30) strike the groove plate (13) and the liquid collection plate (14).

2. The rectification device for deep processing of benzene hydrogenation crude cyclopentane according to claim 1, characterized in that: The separation component (15) includes a protective chamber (151) fixedly disposed in the middle of the lower surface of the tray (11). A screw (152) is rotatably disposed in the middle of the inner cavity of the protective chamber (151). A servo motor (153) is disposed at one end of the screw (152). Several horizontal sliders (154) are threadedly connected to the screw (152). Several horizontal sliders (154) are respectively disposed at the lower end of each set of trays (13).

3. The rectification device for deep processing of benzene hydrogenation crude cyclopentane according to claim 2, characterized in that: The horizontal slider (154) has an inclined surface (155) at the end away from the servo motor (153). The inclined surface (155) is used to push the slot plate (13) located at one end of the servo motor (153) to move axially along the screw (152) to separate the two slot plates (13). A push plate (156) is fixedly provided on the upper part of the horizontal slider (154) away from the inclined surface (155). The push plate (156) is used to push the slot plate (13) located at one end of the servo motor (153) to reset and fix it.

4. The rectification device for deep processing of benzene hydrogenation crude cyclopentane according to claim 3, characterized in that: The protective chamber (151) is provided with a number of slots (157). The slots (157) are provided with an opening slot (158) on the side of the servo motor (153). The slots (157) and the opening slot (158) are respectively provided at the lower end of each set of slot plates (13). The slots (157) are provided with insert rods (159) inserted into the cavity of the slots (157). The insert rods (159) are respectively fixedly provided in the middle of the lower surface of the slot plate (13) on the side away from the servo motor (153), thereby realizing the longitudinal limitation of the slot plate (13) on the side away from the servo motor (153). The cavity of the opening slot (158) is slidably connected to the slot plate (13) on the side of the servo motor (153), thereby realizing the lateral limitation of the slot plate (13) on the side of the servo motor (153).

5. The distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation according to claim 1, characterized in that: The lifting assembly (22) includes a square outer plate (221) fixedly disposed at both ends of several slot plates (13). A square inner plate (222) is slidably disposed between the inner cavities of the square outer plate (221) fixedly connected to both ends of each set of slot plates (13). The lower end of the square inner plate (222) is slidably connected to the outer ring side of the upper surface of the slot plate (11) through a T-shaped sliding groove and a T-shaped sliding rod. A square horizontal groove (223) is provided at the lower end of the square inner plate (222). A square slider (224) is slidably disposed at both ends of the inner cavity of the square horizontal groove (223). The two square sliders (224) are fixedly connected to the inner sidewall of the square outer plate (221) respectively. A balance rod (225) is movably disposed through the middle of the square slider (224). The balance rod (225) is fixedly disposed in the middle of the inner cavity of the square horizontal groove (223).

6. The distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation according to claim 5, characterized in that: Each of the square outer sleeve plates (221) has an L-shaped groove (226) on its back. Each L-shaped groove (226) has a fixing block (227) slidably disposed in its inner cavity. The fixing block (227) is fixedly connected to the support for fixing at both ends of the liquid collection plate (14).

7. The distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation according to claim 6, characterized in that: The upper part of the square inner plate (222) is provided with an inner sliding groove (228), and the two ends of the inner sliding groove (228) are respectively provided with strip vertical grooves (229). The strip vertical grooves (229) are opened at the upper end of the square inner plate (222) and communicate with the inner cavity of the square horizontal groove (223).

8. The distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation according to claim 7, characterized in that: The inner diameter of the inner groove (228) is the same as the inner diameter of the balance bar (225), and the inner diameter of the strip vertical groove (229) is the same as the width of the square slider (224), so that the balance bar (225) can move longitudinally on the square inner plate (222) together with the square slider (224).

9. The distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation according to claim 1, characterized in that: The transmission assembly (31) includes a fixed plate (311) rotatably disposed on one side of a plurality of vibrating hammers (30). The plurality of fixed plates (311) are fixedly disposed on the opposite side wall of each set of scrapers (20). A first bevel gear (312) is rotatably disposed on the side of the fixed plate (311) away from the vibrating hammer (30). The first bevel gear (312) is fixedly connected to the vibrating hammer (30) through a transmission shaft. A second bevel gear (313) is meshed on the side of the first bevel gear (312) away from the vibrating hammer (30). A spur gear (314) is fixedly disposed on the back of the second bevel gear (313). A spur rack (315) is meshed on the side of the spur gear (314) away from the fixed plate (311). The spur rack (315) is fixedly disposed on the back of the square outer sleeve plate (221).

10. The distillation apparatus for deep processing of crude cyclopentane by benzene hydrogenation according to claim 9, characterized in that: The second bevel gear (313) is set as a half tooth, so that the second bevel gear (313) can drive the first bevel gear (312) to rotate intermittently, and a torsion spring is provided at the rotation point between the vibrating hammer (30) and the fixed plate (311) to enable the vibrating hammer (30) to reciprocate.

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