Dichlorotoluene purification device
By using a steam-powered scraping component and an autonomous impurity collection component in the dichlorotoluene purification device, the agglomeration problem caused by the polymerization reaction of dichlorotoluene at high temperature was solved, and the purification efficiency and device stability were improved.
Patent Information
- Application Number
- CN202422870028.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Dichlorotoluene may undergo polymerization reaction at high temperature to generate polymers and deposit on the tower wall, tower tray or packing of the distillation tower, affecting the heat and mass transfer efficiency, and may cause problems such as increased pressure in the tower and temperature out of control.
A dichlorotoluene purification device is designed. The steam generated by evaporation is used as power. Scraping components such as floats, paddles, and scrapers are used to clean the inside of the cylinder to prevent agglomeration from affecting the heat and mass transfer efficiency. Impurities are collected autonomously through components such as screens, sliders, and baffles to prevent them from clogging the pipeline.
It effectively avoids agglomeration inside the cylinder, improves the efficiency of dichlorotoluene purification, prevents pressure increase and temperature runaway in the tower, and ensures stable operation of the device.
Smart Images
Figure CN223474435U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dichlorotoluene purification technology, and in particular to a dichlorotoluene purification apparatus. Background Technology
[0002] Dichlorotoluene is an organic compound that can be divided into various isomers according to its different chemical structures. Common isomers include o-chlorotoluene and dichlorotoluene. Each isomer has its unique physicochemical properties and application areas. In practical applications, it is necessary to select the appropriate isomer according to specific needs.
[0003] The purification unit for dichlorotoluene mainly includes a distillation column system, a crystallization separation system, and auxiliary equipment. High-quality dichlorotoluene products can be obtained by using a high-efficiency structured packed column for distillation. The purification unit for dichlorotoluene is a complex system that involves the coordinated operation of multiple technologies and equipment.
[0004] In existing technical solutions, a continuous countercurrent contact between the gas and liquid phases is usually adopted. The liquid flows down along the surface of the packing and the gas rises through the voids in the packing layer, and gas-liquid mass transfer occurs on the surface of the packing. However, during the purification process, dichlorotoluene may undergo a polymerization reaction at high temperatures, generating polymers that are deposited on the walls, trays, or packing of the distillation column. This not only affects the heat and mass transfer efficiency but may also lead to problems such as increased pressure and temperature runaway in the column.
[0005] Therefore, a dichlorotoluene purification device is proposed. Utility Model Content
[0006] The purpose of this invention is to provide a dichlorotoluene purification device. During the dichlorotoluene purification process, as the liquid enters the cylinder, the device can use the steam generated by evaporation as power to scrape the material, thereby avoiding clumping inside the cylinder that affects heat and mass transfer efficiency, and thus improving the working efficiency of dichlorotoluene purification, in order to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a dichlorotoluene purification device, comprising a cylinder, a partition plate fixedly connected inside the cylinder, a circular groove formed at the lower end of the partition plate, a guide plate fixedly connected at the lower end of the partition plate, a cleaning assembly movably connected to the lower end of the cylinder, the cleaning assembly comprising a circular shaft movably connected inside the circular groove, a float plate fixedly connected to the lower end of the circular shaft, a propeller fixedly connected to the outside of the circular shaft, an inner cylinder fixedly connected to the lower end of the float plate, a telescopic cylinder movably connected to the outside of the inner cylinder, an outer cylinder movably connected to the outside of the telescopic cylinder, and scrapers fixedly connected to both the left and right ends of the outer cylinder.
[0008] Preferably, an inlet pipe is fixedly connected to the front end of the cylinder, a first connecting pipe is fixedly connected to the lower rear end of the cylinder, a reboiler is fixedly connected to the lower end of the first connecting pipe, a first guide pipe is fixedly connected to the lower end of the reboiler, and a bottom sampling pump is fixedly connected to the outside of the first guide pipe.
[0009] Preferably, a second connecting pipe is fixedly connected to the upper end of the cylinder, a condenser is fixedly connected to the rear end of the second connecting pipe, and a second guide pipe is fixedly connected to the lower end of the condenser.
[0010] Preferably, the cylinder has a flow guide groove inside, and there are multiple flow guide grooves. A water guide pipe is fixedly connected to the lower end of the cylinder, a collection box is fixedly connected to the front end of the water guide pipe, and a discharge pipe is fixedly connected to the front side of the lower end of the water guide pipe.
[0011] Preferably, the water guide pipe has a first groove inside, and there are multiple first grooves. The water guide pipe is provided with a collection assembly inside. The collection assembly includes a screen movably connected to the inside of the water guide pipe. A slider is fixedly connected to the outside of the screen, and there are multiple sliders. A baffle is fixedly connected to the front end of the screen, and a spring is movably connected to the lower end of the screen.
[0012] Preferably, the collecting assembly further includes a rotating rod movably connected to the upper end of the screen, a paddle fixedly connected to the outside of the rotating rod, and a protrusion fixedly connected to the upper end of the rotating rod.
[0013] Preferably, the inner wall of the inner cylinder is provided with a second groove, and there are multiple second grooves, with the rotating rod penetrating into the interior of the inner cylinder.
[0014] Preferably, the float is made of foam plastic, and the interior of the partition is filled with spherical material.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. The dichlorotoluene purification device, by installing components such as a float, a round shaft, a rotor, an inner cylinder, a telescopic cylinder, a second groove, an outer cylinder, and a scraper, allows the device to scrape the material using the steam generated by evaporation as power after the liquid enters the cylinder during the dichlorotoluene purification process. This avoids the agglomeration inside the cylinder from affecting heat and mass transfer efficiency, thereby improving the working efficiency of dichlorotoluene purification.
[0017] 2. This dichlorotoluene purification device, by installing components such as screens, sliders, baffles, springs, rotating rods, paddles and protrusions, can autonomously collect a large amount of impurities after they accumulate inside the device, thereby avoiding impurities clogging the pipes and causing problems such as increased pressure and uncontrolled temperature inside the tower. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is an overall structural view of the present invention;
[0020] Figure 2 This is a schematic diagram of a half-section structure of the present utility model;
[0021] Figure 3 This is a half-sectional structural diagram of the collection component of this utility model;
[0022] Figure 4 For the present utility model Figure 3 A magnified view of A in the middle.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Cylinder; 11. Inlet pipe; 111. Guide channel; 12. First connecting pipe; 13. Second connecting pipe; 14. Water guide pipe; 141. First groove; 15. Collection box; 2. Reboiler; 21. First guide pipe; 22. Condenser; 221. Second guide pipe; 23. Bottom pump; 24. Discharge pipe; 3. Baffle; 31. Circular groove; 32. Guide plate; 4. Cleaning assembly; 41. Float; 42. Circular shaft; 421. Rotary paddle; 43. Inner cylinder; 431. Telescopic cylinder; 432. Second groove; 44. Outer cylinder; 441. Scraper; 5. Collection assembly; 51. Screen; 511. Slider; 512. Baffle; 52. Spring; 53. Rotating rod; 531. Oscillator; 532. Protrusion. Detailed Implementation
[0025] 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.
[0026] Please see Figures 1 to 4 This utility model provides a technical solution:
[0027] A dichlorotoluene purification device includes a cylindrical body 1. A partition 3 is fixedly connected inside the cylindrical body 1. A circular groove 31 is formed at the lower end of the partition 3. A cleaning assembly 4 is movably connected to the lower end of the cylindrical body 1. The cleaning assembly 4 includes a circular shaft 42 movably connected inside the circular groove 31. A float 41 is fixedly connected to the lower end of the circular shaft 42. A propeller 421 is fixedly connected to the outside of the circular shaft 42. An inner cylinder 43 is fixedly connected to the lower end of the float 41. A telescopic cylinder 431 is movably connected to the outside of the inner cylinder 43. An outer cylinder 44 is movably connected to the outside of the telescopic cylinder 431. Scrapers 441 are fixedly connected to both the left and right ends of the outer cylinder 44. An inlet pipe 11 is fixedly connected to the front end of the cylindrical body 1. A first connecting pipe is fixedly connected to the lower rear end of the cylindrical body 1. 12, the lower end of the first connecting pipe 12 is fixedly connected to a reboiler 2, the lower end of the reboiler 2 is fixedly connected to a first guide pipe 21, the outside of the first guide pipe 21 is fixedly connected to a bottom pump 23, the upper end of the cylinder 1 is fixedly connected to a second connecting pipe 13, the rear end of the second connecting pipe 13 is fixedly connected to a condenser 22, the lower end of the condenser 22 is fixedly connected to a second guide pipe 221, the inside of the cylinder 1 is provided with a guide groove 111, the number of guide grooves 111 is multiple, the lower end of the cylinder 1 is fixedly connected to a water guide pipe 14, the front end of the water guide pipe 14 is fixedly connected to a collection box 15, the lower front side of the water guide pipe 14 is fixedly connected to a discharge pipe 24, the float 41 is made of foam plastic, and the inside of the partition 3 is filled with spherical stockpile material.
[0028] By adopting the above technical solution, when dichlorotoluene purification is required, the raw material first enters the cylinder 1 through the inlet pipe 11. The raw material inside the cylinder 1 then enters the water guide pipe 14. By starting the bottom pump 23, the raw material inside the water guide pipe 14 is drawn into the reboiler 2 through the first guide pipe 21. Subsequently, by starting the reboiler 2, the raw material inside the reboiler 2 is vaporized. The vaporized raw material then enters the cylinder 1 through the first connecting pipe 12, then passes through the spherical stack inside the baffle 3, and finally enters the condenser 22 through the second connecting pipe 13. The condenser 22 condenses the vaporized raw material into liquid, which then enters the cylinder 1 through the second guide pipe 221. The liquid then falls onto the guide plate 32 and returns to the lower end of the cylinder 1 through the guide groove 111. Dichlorotoluene may undergo a polymerization reaction at high temperatures, generating polymers that deposit at the lower end of the cylinder 1 and cause blockage. At this time, the raw liquid accumulates inside the lower part of the cylinder 1. At the end, the float plate 41 rises as the raw liquid accumulates. The rise of the float plate 41 brings the inner cylinder 43 up with it, and the rise of the inner cylinder 43 brings the telescopic cylinder 431 up with it. As the float plate 41 rises, the rotor 421 comes into contact with the steam discharged from the first connecting pipe 12. The steam drives the circular shaft 42 to rotate inside the circular groove 31. The rotation of the circular shaft 42 drives the rotor 421 to rotate, and the rotation of the rotor 421 drives the circular shaft 42, the float plate 41 and the lower inner cylinder 43 to rotate. The inner cylinder 43 then drives the telescopic cylinder 431, the outer cylinder 44 and the external scraper 441 to rotate. At this time, the rotation of the scraper 441 scrapes and cleans the deposits inside the cylinder 1. The purified dichlorotoluene is finally discharged through the discharge pipe 24. In order to achieve the goal of scraping the material by using the steam generated by evaporation of the cleaning component 4 during the dichlorotoluene purification process, the agglomeration inside the cylinder 1 is avoided, which affects the heat and mass transfer efficiency, thereby improving the working efficiency of dichlorotoluene purification.
[0029] Specifically, such as Figure 4 As shown, the water guide pipe 14 has a first groove 141 inside, and there are multiple first grooves 141. The water guide pipe 14 is equipped with a collection assembly 5 inside. The collection assembly 5 includes a screen 51 movably connected to the inside of the water guide pipe 14. A slider 511 is fixedly connected to the outside of the screen 51, and there are multiple sliders 511. A baffle 512 is fixedly connected to the front end of the outside of the screen 51. A spring 52 is movably connected to the lower end of the screen 51. The collection assembly 5 also includes a rotating rod 53 movably connected to the upper end of the screen 51. A paddle 531 is fixedly connected to the outside of the rotating rod 53. A protrusion 532 is fixedly connected to the upper end of the rotating rod 53. The inner wall of the inner cylinder 43 has a second groove 432, and there are multiple second grooves 432. The rotating rod 53 penetrates into the inside of the inner cylinder 43.
[0030] By adopting the above technical solution, during the purification process of dichlorotoluene, after the raw liquid passes through the screen 51, a polymerization reaction may occur at high temperature, generating polymers that deposit on the upper end of the screen 51 and clog it. As the accumulation on the upper end of the screen 51 increases, the spring 52 is compressed, causing the screen 51 to slide downwards along the first groove 141 via the slider 511. As the screen 51 descends, the upper rotating rod 53 and the oscillating paddle 531 also descend together. As the rotating rod 53 descends, it engages the protrusion 532 into the second groove 432. Meanwhile, the above-mentioned purification process... When the inner cylinder 43 rotates, the inner cylinder 43 rotates the rotating rod 53 through the second groove 432. The rotation of the rotating rod 53 rotates the external oscillating paddle 531 together, thereby scraping the accumulated material on the upper end of the screen 51. As the screen 51 moves downward, the baffle 512 descends accordingly. Finally, the oscillating paddle 531 pushes the accumulated material into the collection box 15. After a large amount of impurities accumulate in the water pipe 14, the collection component 5 autonomously collects the impurities accumulated on the upper end of the screen 51, thereby preventing impurities from clogging the pipe and causing problems such as increased pressure and uncontrolled temperature inside the tower.
[0031] Working Principle: When dichlorotoluene purification is required, the raw material first enters the cylinder 1 through the inlet pipe 11. The raw material inside the cylinder 1 then enters the water guide pipe 14. By starting the bottom pump 23, the raw material inside the water guide pipe 14 is drawn into the reboiler 2 through the first guide pipe 21. Subsequently, by starting the reboiler 2, the raw material inside the reboiler 2 is vaporized. The vaporized raw material then enters the cylinder 1 through the first connecting pipe 12, then passes through the spherical stack inside the baffle 3, and finally enters the condenser 22 through the second connecting pipe 13. The condenser 22 condenses the vaporized raw material into liquid, which then enters the cylinder 1 through the second guide pipe 221. The liquid then falls onto the guide plate 32 and returns to the cylinder 1 through the guide groove 111. At the lower end, dichlorotoluene may undergo a polymerization reaction at high temperatures, generating polymers that deposit inside the lower end of the cylinder 1 and cause blockage. At this time, the raw liquid accumulates inside the lower end of the cylinder 1, and the float 41 rises with the accumulation of raw liquid. The rise of the float 41 brings the inner cylinder 43 up, and the rise of the inner cylinder 43 brings the telescopic cylinder 431 up as well. As the float 41 rises, the propeller 421 comes into contact with the steam discharged from the first connecting pipe 12. The steam drives the propeller 421 outside the circular shaft 42 to rotate. The rotation of the propeller 421 drives the circular shaft 42, the float 41 and the lower inner cylinder 43 to rotate. The inner cylinder 43 then drives the telescopic cylinder 431, the outer cylinder 44 and the outer scraper 441 to rotate. As the scraper 441 rotates, the deposits inside the cylinder 1 are cleaned.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A dichlorotoluene purification apparatus, comprising a cylindrical body (1), characterized in that: A partition plate (3) is fixedly connected inside the cylinder (1). A circular groove (31) is opened at the lower end of the inner part of the partition plate (3). A guide plate (32) is fixedly connected at the lower end of the partition plate (3). A cleaning assembly (4) is movably connected at the lower end of the inner part of the cylinder (1). The cleaning assembly (4) includes a circular shaft (42) movably connected inside the circular groove (31). A float plate (41) is fixedly connected at the lower end of the circular shaft (42). A propeller (421) is fixedly connected to the outside of the circular shaft (42). An inner cylinder (43) is fixedly connected at the lower end of the float plate (41). A telescopic cylinder (431) is movably connected to the outside of the inner cylinder (43). An outer cylinder (44) is movably connected to the outside of the telescopic cylinder (431). Scrapers (441) are fixedly connected to both the left and right ends of the outer cylinder (44).
2. The dichlorotoluene purification apparatus according to claim 1, characterized in that: The front end of the cylinder (1) is fixedly connected to a liquid inlet pipe (11), the rear end of the cylinder (1) is fixedly connected to a first connecting pipe (12), the lower end of the first connecting pipe (12) is fixedly connected to a reboiler (2), the lower end of the reboiler (2) is fixedly connected to a first guide pipe (21), and the outside of the first guide pipe (21) is fixedly connected to a bottom pump (23).
3. The dichlorotoluene purification apparatus according to claim 1, characterized in that: The upper end of the cylinder (1) is fixedly connected to a second connecting pipe (13), the rear end of the second connecting pipe (13) is fixedly connected to a condenser (22), and the lower end of the condenser (22) is fixedly connected to a second guide pipe (221).
4. The dichlorotoluene purification apparatus according to claim 1, characterized in that: The cylinder (1) has a flow guide groove (111) inside, and there are multiple flow guide grooves (111). A water guide pipe (14) is fixedly connected to the lower end of the cylinder (1), and a collection box (15) is fixedly connected to the front end of the water guide pipe (14). A discharge pipe (24) is fixedly connected to the front side of the lower end of the water guide pipe (14).
5. The dichlorotoluene purification apparatus according to claim 4, characterized in that: The water guide pipe (14) has a first groove (141) inside, and there are multiple first grooves (141). The water guide pipe (14) is provided with a collection component (5). The collection component (5) includes a screen (51) movably connected to the inside of the water guide pipe (14). A slider (511) is fixedly connected to the outside of the screen (51). There are multiple sliders (511). A baffle (512) is fixedly connected to the front end of the screen (51). A spring (52) is movably connected to the lower end of the screen (51).
6. The dichlorotoluene purification apparatus according to claim 5, characterized in that: The collecting assembly (5) also includes a rotating rod (53) movably connected to the upper end of the screen (51), with a paddle (531) fixedly connected to the outside of the rotating rod (53), and a protrusion (532) fixedly connected to the upper end of the rotating rod (53).
7. The dichlorotoluene purification apparatus according to claim 6, characterized in that: The inner wall of the inner cylinder (43) is provided with a second groove (432), and there are multiple second grooves (432). The rotating rod (53) penetrates into the interior of the inner cylinder (43).
8. The dichlorotoluene purification apparatus according to claim 1, characterized in that: The floating plate (41) is made of foam plastic, and the interior of the partition plate (3) is filled with spherical material.