A crystallization tower for preparing potassium tert-butoxide

Abstract

The invention belongs to the technical field of potassium tert-butoxide preparation and specifically discloses a crystallization tower for preparing potassium tert-butoxide. The crystallization tower comprises a crystallization tower body, wherein the lower portion of one side of the crystallization tower body is connected to an air inlet pipe, the upper portion of one side of the crystallization tower body is connected to an infusion assembly, the lower portion of the inner wall of the crystallization tower body is connected to a collection assembly, and the lower portion of one side of the crystallization tower body is connected to an anti-blocking assembly. The invention can collect falling crystals and solution in the crystallization tower by providing the collection assembly, and can separate mother liquor from the crystals. The mother liquor can be recycled, thereby reducing waste of solvents and raw materials. At the same time, the cleaning assembly facilitates the collection and treatment of crystals and solution remaining on the inner wall of the crystallization tower, thereby preventing the crystals and solution remaining on the inner wall of the crystallization tower from corroding or wearing the equipment, thereby extending the service life of the equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of potassium tert-butoxide preparation, and particularly relates to a crystallization tower for preparing potassium tert-butoxide. Background Art

[0002] Potassium tert-butoxide is an organic compound with the molecular formula C4H9OK. It is an important organic base with a greater alkalinity than potassium hydroxide. Due to the inductive effect of the three methyl groups (CH3)3CO-, it has stronger alkalinity and activity than other potassium alcoholates, making it an excellent catalyst. In addition, as a strong base, potassium tert-butoxide is widely used in organic synthesis in the chemical, pharmaceutical, and pesticide industries, such as transesterification, condensation, rearrangement, polymerization, ring opening, and the preparation of heavy metal orthoesters. Potassium tert-butoxide is the product of replacing the H atom in the OH group of tert-butanol with a K atom. Potassium tert-butoxide is available in both liquid and solid forms. The most common liquid industrial product is a solution of potassium tert-butoxide in tert-butanol. The product is light yellow or milky white with a slightly turbid color, containing 10% to 12% potassium tert-butoxide. The solid product is generally a white or off-white powder containing 95% to 97% potassium tert-butoxide.

[0003] The tower crystallizer is also called the granulation tower. The solution is sprayed into the tower by a sprayer. When the solution droplets fall to the bottom of the tower, they are cooled by vaporizing part of the solvent in the countercurrent air flow, so crystals are generated. The crystals and mother liquor flow out automatically or are pumped out for further refining.

[0004] At present, during the crystallization process of the solution raw material in the crystallization tower, the solvent is sprayed downward through the sprayer. More solvent is easily sprayed onto the inner wall of the crystallization tower, causing the solution to crystallize on the tower wall. It is currently inconvenient to collect the crystals remaining on the tower wall, resulting in waste of potassium tert-butoxide during the crystallization process. At the same time, after the crystallization process, it is also inconvenient for the staff to clean the inner wall of the tower. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a crystallization tower for preparing potassium tert-butoxide.

[0006] To achieve the above objectives, the present invention provides a crystallization tower for preparing potassium tert-butoxide, comprising a crystallization tower body, wherein the lower portion of one side of the crystallization tower body is connected to an air inlet pipe, the upper portion of one side of the crystallization tower body is connected to an infusion assembly, the lower portion of the inner wall of the crystallization tower body is connected to a collecting assembly, the collecting assembly comprises a connecting tube, the lower portion of the inner wall of the connecting tube is connected to a support ring, both sides of the upper end of the support ring are connected to a cylinder, the upper ends of the two cylinders are extended through the upper end of the connecting tube, the upper ends of the two cylinders are connected to a moving ring, both sides of the upper end of the moving ring are slidably connected to moving blocks, a moving groove is provided at the upper end of the moving ring corresponding to the moving block, the lower ends of the two moving blocks are located in the moving groove and slide, the upper ends of the two moving blocks are connected to a collecting tube, the upper end of the collecting tube is connected to a cleaning assembly, the middle portion of the lower end of the collecting tube is connected to a separation assembly, and the lower portion of one side of the crystallization tower body is connected to an anti-blocking assembly.

[0007] In the above technical solution, further, the infusion component includes a sprayer, one end of the sprayer extends through the interior of the crystallization tower body, one end of the sprayer is connected to a tee, the upper end of the tee is connected to a liquid inlet pipe, the lower end of the tee is connected to a delivery pipe, the lower end of the delivery pipe is connected to a delivery pump, the output end of the delivery pump is connected to the lower end of the delivery pipe, the input end of the delivery pump is connected to a connecting pipe, and one end of the connecting pipe extends through the interior of the crystallization tower body.

[0008] In the above technical solution, further, the cleaning assembly includes a scraper ring, which is fixed to the upper end of the collecting cylinder, and scraper rods are connected to both sides of the upper end of the scraper ring, and one side of the two scraper rods are in contact with both sides of the inner wall of the crystallization tower body respectively, and the lower end of the inner wall of the collecting cylinder is connected to a guide ring, and the upper end of the guide ring is connected to a slide cylinder, and the upper part of the inner wall of the slide cylinder is connected to a slider, and the inner wall of the slider is slidably connected to a screw, and a sliding groove is provided at the slider corresponding to the screw, and the upper end of the screw is connected to a support block, and support rods are connected to both sides of the support block, and one end of the two support rods is connected to the upper parts of both sides of the inner wall of the crystallization tower body.

[0009] In the above technical solution, further, the anti-blocking component includes a first driving motor, the output end of the first driving motor is connected to a first gear, one end of the first gear extends through the interior of the crystallization tower body, one end of the first gear is located inside the connecting tube, one side of the first gear is meshed and connected to the second gear, the inner wall of the second gear is connected to a rotating rod, the upper end of the rotating rod is rotatably connected to the lower end of the support ring, the lower end of the rotating rod extends through the lower end of the connecting tube, the lower end of the rotating rod is connected to a third gear, one side of the third gear is meshed and connected to a gear ring, and the inner wall of the gear ring is connected to a slip ring.

[0010] In the above technical solution, further, the upper end of the slip ring is connected to a guide block, the lower end of the connecting tube is connected to a guide ring at the two guide blocks corresponding to the lower end of the guide ring, a guide groove is provided at the two guide blocks corresponding to the lower end of the guide ring, the upper ends of the two guide blocks are located in the guide groove and slide, one side of the inner wall of the slip ring is connected to a connecting plate, one side of the upper end of the connecting plate is connected to a scraper, one side of the scraper is in contact with one side of the inner wall of the connecting tube, and the other side of the scraper is in contact with one side of the outer wall of the collecting tube.

[0011] In the above technical solution, further, the separation component includes a discharge pipe, the lower part of the outer wall of the discharge pipe is sleeved with a material guide pipe, the lower end of the material guide pipe is connected to a fixed cylinder, the two ends of the fixed cylinder are respectively connected to the lower parts of the two sides of the inner wall of the crystallization tower body, the middle part of the two ends of the inner wall of the fixed cylinder is connected to a filter cylinder, the two sides and the middle of the outer wall of the filter cylinder are connected to discharge rings, the outer walls of multiple discharge rings are respectively connected to the inner wall of the fixed cylinder, and the shape of one side of the discharge ring is inclined.

[0012] In the above technical solution, further, a second drive motor is connected to one end of the fixed cylinder corresponding to one side of the crystallization tower body, the output end of the second drive motor passes through the crystallization tower body, the fixed cylinder and the filter cylinder in sequence and extends to the inside of the filter cylinder, the output end of the second drive motor is connected to a feed auger, one end of the feed auger is connected to one end of the inner wall of the filter cylinder, and both sides of the lower end of the fixed cylinder are connected to discharge pipes, and one end of the two discharge pipes respectively passes through and extends to both sides of the crystallization tower body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The collection component can be set up to facilitate the collection of crystals inside the crystallization tower, so that the falling crystals can be separated from the solution, which is convenient for the subsequent crystallization process of the solution. The mother liquor can be separated from the crystals, further ensuring the purity of the crystals. Through separation and collection, the mother liquor can be recycled, reducing the waste of solvents and raw materials;

[0015] 2. The cleaning component facilitates the collection and treatment of the crystals and solutions remaining on the inner wall of the crystallization tower. Cleaning the crystals remaining on the inner wall of the crystallization tower can prevent these crystals from mixing into subsequent batches of products, thereby improving the purity and quality of the products. At the same time, regular cleaning of the inner wall of the crystallization tower can prevent the crystals and solutions remaining on the inner wall of the crystallization tower from corroding or wearing the equipment. Regular cleaning can keep the interior of the equipment clean and smooth, reduce the occurrence of corrosion and wear, and thus extend the service life of the equipment.

[0016] 3. The anti-blocking component can not only scrape away the crystals that clog the outer wall of the collection tube during use, but also scrape away and collect the residual solution on the inner wall of the connecting tube, thereby effectively preventing the collection tube from being blocked and ensuring that the solution flow inside the collection tube can flow smoothly through the filter tube, which helps to increase the separation speed of the solution and crystals.

[0017] 4. Through the separation component, crystals of different sizes can be discharged separately, which can reduce the workload of subsequent staff in screening crystals and thus improve the efficiency of potassium tert-butoxide preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the device proposed in the present invention;

[0019] Figure 2 A cross-sectional view of the crystallization tower body proposed in the present invention;

[0020] Figure 3 This is a schematic diagram of the installation structure of the discharge pipe proposed in the present invention;

[0021] Figure 4 This is a schematic diagram of the installation structure of the screw proposed in the present invention;

[0022] Figure 5 This is a schematic diagram of the installation structure of the blanking ring proposed in the present invention;

[0023] Figure 6 This is a schematic diagram of the installation structure of the slider proposed in the present invention;

[0024] Figure 7 This is a schematic diagram of the internal structure of the collecting tube proposed by the present invention;

[0025] Figure 8 The present invention proposes Figure 7 Schematic diagram of the enlarged structure of A;

[0026] Figure 9 The present invention proposes Figure 7 Schematic diagram of the enlarged structure of B;

[0027] Figure 10 This is a schematic diagram of the installation structure of the slip ring proposed in the present invention;

[0028] Figure 11 This is a schematic diagram of the installation structure of the scraper proposed in the present invention.

[0029] In the figure: 1, crystallization tower body; 2, air inlet pipe; 3, sprayer; 4, tee pipe; 5, liquid inlet pipe; 6, delivery pipe; 7, delivery pump; 8, connecting pipe; 9, connecting cylinder; 10, support ring; 11, cylinder; 12, moving ring; 13, moving block; 14, collecting cylinder; 15, scraper ring; 16, scraper rod; 17, guide ring; 18, slide cylinder; 19, slider; 20, screw; 21, support block; 22, support Support rod; 23. First drive motor; 24. First gear; 25. Second gear; 26. Rotating rod; 27. Third gear; 28. Gear ring; 29. Slip ring; 30. Guide block; 31. Guide ring; 32. Connecting plate; 33. Scraper; 34. Feed pipe; 35. Guide pipe; 36. Fixed cylinder; 37. Filter cylinder; 38. Feed ring; 39. Second drive motor; 40. Feeding auger; 41. Discharge pipe. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1-11 A crystallization tower for preparing potassium tert-butoxide is shown, comprising a crystallization tower body 1, an air inlet pipe 2 being connected to the lower portion of one side of the crystallization tower body 1, an infusion assembly being connected to the upper portion of one side of the crystallization tower body 1, the infusion assembly comprising a sprayer 3, one end of the sprayer 3 extending through the interior of the crystallization tower body 1, one end of the sprayer 3 being connected to a tee pipe 4, the upper end of the tee pipe 4 being connected to a liquid inlet pipe 5, the lower end of the tee pipe 4 being connected to a delivery pipe 6, the lower end of the delivery pipe 6 being connected to a delivery pump 7, the output end of the delivery pump 7 being connected to the lower end of the delivery pipe 6, the input end of the delivery pump 7 being connected to a connecting pipe 8, one end of the connecting pipe 8 extending through the interior of the crystallization tower body 1;

[0032] One end of the air inlet pipe 2 is connected to the output end of the air cooler. When the air cooler is working, cold air enters the interior of the crystallization tower body 1 through the air inlet pipe 2. The potassium tert-butoxide solution can be transported to the interior of the crystallization tower body 1 through the infusion assembly. The outer wall of the three-way pipe 4 is equipped with a first liquid inlet valve and a second liquid inlet valve. The potassium tert-butoxide solution is transported to the interior of the three-way pipe 4 through the liquid inlet pipe 5. At this time, the first liquid inlet valve is opened and the second liquid inlet valve is closed. The potassium tert-butoxide solution is transported to the interior of the sprayer 3 through the three-way pipe 4. The solution is evenly sprayed into the interior of the crystallization tower body 1 through the sprayer 3 and flows upward through the cold air. , the falling solution is cooled, causing part of the solution to crystallize. At this time, the crystals and the solution continue to fall and fall into the collecting cylinder 14. The solution falls to the lower end of the inner wall of the crystallization tower body 1 through the collecting cylinder 14. The delivery pump 7 works, and the solution below the crystallization tower body 1 is delivered to the tee pipe 4 through the connecting pipe 8 and the delivery pipe 6. At this time, the second liquid inlet valve is opened, and the first liquid inlet valve is closed. The solution is delivered to the inside of the sprayer 3 through the tee pipe 4, and the solution is continued to be sprayed into the inside of the crystallization tower body 1 through the sprayer 3, causing the solution to form a crystalline state.

[0033] The lower part of the inner wall of the crystallization tower body 1 is connected to a collecting assembly, which includes a connecting cylinder 9, a supporting ring 10 connected to the lower part of the inner wall of the connecting cylinder 9, cylinders 11 are connected on both sides of the upper end of the support ring 10, the upper ends of the two cylinders 11 extend through and extend to the upper end of the connecting cylinder 9, the upper ends of the two cylinders 11 are connected to a moving ring 12, and both sides of the upper end of the moving ring 12 are slidably connected to moving blocks 13, a moving groove is provided at the upper end of the moving ring 12 corresponding to the moving block 13, the lower ends of the two moving blocks 13 slide inside the moving groove, the upper ends of the two moving blocks 13 are connected to a collecting cylinder 14, the upper end of the collecting cylinder 14 is connected to a cleaning assembly, and the middle part of the lower end of the collecting cylinder 14 is connected to a separation assembly;

[0034] The outer wall of the collecting tube 14 is made of filter material and can filter the solution. The cylinder 11 can be protected by the connecting tube 9 to prevent the cylinder 11 from contacting the potassium tert-butoxide solution. When the solution falls, a part of the solution is formed into a crystalline state by the cold air, and the solution and the crystals all fall into the collecting tube 14. At the same time, since the sprayer 3 can easily spray the solution onto the inner wall of the crystallization tower body 1, when the cold air flows upward, the solution on the inner wall of the crystallization tower body 1 may be formed into a crystalline state due to the cold air. The two cylinders 11 push the movable ring 12 and the collecting tube 14 to move upward, and the cleaning component can be used to clean the crystals on the inner wall of the crystallization tower body 1 to prevent crystals from remaining inside the crystallization tower body 1. After the crystals on the inner wall of the crystallization tower body 1 are cleaned, the crystals of different sizes can be separated and discharged by the separation component, which is convenient for subsequent processing of the crystals.

[0035] The cleaning assembly includes a scraper ring 15, which is fixed to the upper end of the collecting cylinder 14. Both sides of the upper end of the scraper ring 15 are connected to scraper rods 16. One side of the two scraper rods 16 is in contact with both sides of the inner wall of the crystallization tower body 1 respectively. The lower end of the inner wall of the collecting cylinder 14 is connected to a guide ring 17. The upper end of the guide ring 17 is connected to a slide cylinder 18. The upper part of the inner wall of the slide cylinder 18 is connected to a slider 19. The inner wall of the slider 19 is slidably connected to a screw rod 20. The slider 19 is provided with a slide groove corresponding to the screw rod 20. The upper end of the screw 20 is connected to a support block 21. Both sides of the support block 21 are connected to support rods 22. One end of the two support rods 22 is connected to the upper part of the inner wall of the crystallization tower body 1;

[0036] When the two cylinders 11 push the moving ring 12 to move upward, the moving block 13, the scraper ring 15, the two scraper rods 16 and the collecting barrel 14 are driven to move upward. When the collecting barrel 14 moves upward, the slide 18 and the slider 19 can be pushed to move upward. The shape of the slide groove is adapted to the shape of the outer wall of the screw 20. Since the screw 20 is located inside the slide groove inside the slider 19, when the slider 19 slides on the outer wall of the screw 20, the slider 19 is also located on the outer wall of the screw 20 and rotates, thereby driving the slide 18 and the collecting barrel 14 to rotate. When the collecting barrel 14 rotates, it drives the two moving blocks 13 to slide inside the moving groove above the moving ring 12, thereby raising the collecting barrel 14. The stable rotation performance can drive the scraper ring 15 and the two scraping rods 16 to scrape the inner wall of the crystallization tower body 1, thereby cleaning the crystals remaining on the inner wall of the crystallization tower body 1. At the same time, during the upward movement and rotation of the collecting cylinder 14, the residual solution inside the collecting cylinder 14 can be thrown out. When the slider 19 contacts the bottom of the upper support block 21, the two cylinders 11 stop pushing the moving ring 12 upward, and then the two cylinders 11 drive the moving ring 12 and the collecting cylinder 14 to move downward. When the moving ring 12 moves downward, it can scrape the solution on the inner wall of the crystallization tower body 1 downward, so that the solution flows downward through the inner wall of the connecting cylinder 9 to the bottom of the crystallization tower body 1.

[0037] The lower part of one side of the crystallization tower body 1 is connected to an anti-blocking component, which includes a first drive motor 23, an output end of the first drive motor 23 is connected to a first gear 24, one end of the first gear 24 extends through the inside of the crystallization tower body 1, one end of the first gear 24 is located inside the connecting tube 9, one side of the first gear 24 is meshed with a second gear 25, the inner wall of the second gear 25 is connected to a rotating rod 26, the upper end of the rotating rod 26 is rotatably connected to the lower end of the support ring 10, the lower end of the rotating rod 26 extends through the lower end of the connecting tube 9, the lower end of the rotating rod 26 is connected to a third gear 27, and the third One side of the gear 27 is meshedly connected to a gear ring 28, and the inner wall of the gear ring 28 is connected to a slip ring 29. The upper end of the slip ring 29 is connected to a guide block 30. The lower end of the connecting tube 9 is connected to a guide ring 31 corresponding to the two guide blocks 30. The lower end of the guide ring 31 is provided with a guide groove corresponding to the two guide blocks 30. The upper ends of the two guide blocks 30 slide inside the guide groove. One side of the inner wall of the slip ring 29 is connected to a connecting plate 32. One side of the upper end of the connecting plate 32 is connected to a scraper 33. One side of the scraper 33 contacts one side of the inner wall of the connecting tube 9, and the other side of the scraper 33 contacts one side of the outer wall of the collecting tube 14.

[0038] When most of the solution is crystallized, the crystals and the solution fall into the collecting tube 14, and the solution flows downward through the collecting tube 14, thereby separating the crystals and the solution. At the same time, the crystals are likely to cause the filter holes on the outer wall of the collecting tube 14 to become clogged. The first drive motor 23 drives the first gear 24 to work, thereby meshing and driving the second gear 25, the rotating rod 26 and the third gear 27 to rotate. The third gear 27 meshes and drives the gear ring 28 to rotate. The gear ring 28 can drive the slip ring 29, the connecting plate 32 and the scraper 33 to rotate. When the slip ring 29 rotates, the two guides The block 30 slides inside the guide groove below the guide ring 31, which can improve the stability of the slip ring 29 during rotation. The scraper 33 is located on the inner wall of the connecting cylinder 9 and the outer wall of the collecting cylinder 14 and rotates and moves, so that the scraper 33 can clean the residual solution on the inner wall of the connecting cylinder 9. At the same time, the scraper 33 can clean the crystals blocked inside the filter holes on the outer wall of the collecting cylinder 14 to avoid blockage of the collecting cylinder 14. The shape of the scraper 33 is adapted to the shape of the inner wall of the connecting cylinder 9 and the outer wall of the collecting cylinder 14, which is convenient for cleaning the inner wall of the connecting cylinder 9 and the outer wall of the collecting cylinder 14.

[0039] The separation component includes a discharge pipe 34, the lower part of the outer wall of the discharge pipe 34 is sleeved with a guide pipe 35, the lower end of the guide pipe 35 is connected to a fixed cylinder 36, the two ends of the fixed cylinder 36 are respectively connected to the lower part of the inner wall of the crystallization tower body 1, the middle part of the inner wall of the fixed cylinder 36 is connected to a filter cartridge 37, the two sides and the middle of the outer wall of the filter cartridge 37 are connected to a discharge ring 38, the outer walls of multiple discharge rings 38 are respectively connected to the inner wall of the fixed cylinder 36, and the shape of one side of the discharge ring 38 is inclined. A second drive motor 39 is connected to one end of the fixed cylinder 36 on one side of the tower body 1. The output end of the second drive motor 39 sequentially passes through the crystallization tower body 1, the fixed cylinder 36 and the filter cylinder 37 and extends into the interior of the filter cylinder 37. The output end of the second drive motor 39 is connected to a feed auger 40. One end of the feed auger 40 is connected to one end of the inner wall of the filter cylinder 37. Both sides of the lower end of the fixed cylinder 36 are connected to discharge pipes 41. One end of the two discharge pipes 41 extends through both sides of the crystallization tower body 1 respectively.

[0040] The lower end of the discharge pipe 34 is inserted into the inside of the guide pipe 35. The shape of one end of the guide pipe 35 is inclined to facilitate the crystals to enter the inside of the filter cartridge 37. The number of discharge rings 38 is four. The shape of one side of the discharge ring 38 is inclined. A discharge valve is connected to the middle of the outer wall of the discharge pipe 34. After the solution is crystallized, the crystals accumulate in the collection cylinder 14. When the collection cylinder 14 moves downward to a suitable position, the discharge pipe 34 is plugged into the inside of one end of the guide pipe 35. By opening the discharge valve at the discharge pipe 34, the crystals inside the collection cylinder 14 are discharged through the discharge pipe 34 under the guidance of the guide ring 17. The crystals are transported to the inside of the guide pipe 35 through the discharge pipe 34, and then the material is transported to the inside of the filter cartridge 37 through the guide pipe 35. The outer wall of the filter cartridge 37 is A first filter hole is provided on each side, and a second filter hole is evenly provided on the other side of the outer wall of the filter cartridge 37. The second drive motor 39 drives the feed auger 40 to rotate, and then the feed auger 40 can transport the crystals inside the filter cartridge 37 to one side, and the smaller crystals fall into the fixed cylinder 36 through the first filter hole on one side of the outer wall of the filter cartridge 37. The smaller crystals can be guided to one of the discharge pipes 41 through the two discharge rings 38 on one side of the outer wall of the filter cartridge 37. The feed auger 40 drives the larger crystals to be transported to one side inside the filter cartridge 37, and the larger crystals fall into the fixed cylinder 36 through the second filter hole. The larger crystals can be guided to the other discharge pipe 41 through the two discharge rings 38 at the second filter hole on the outer wall of the filter cartridge 37, thereby realizing the separation and processing of crystals of different sizes.

[0041] Working principle: When using the device, potassium tert-butoxide solvent enters the interior of the tee pipe 4 through the liquid inlet pipe 5, and then the solution enters the interior of the sprayer 3 through the tee pipe 4, and the solvent is evenly sprayed into the interior of the crystallization tower body 1 through the sprayer 3, and cold air enters the interior of the crystallization tower body 1 through the air inlet pipe 2. The cold air inside the crystallization tower body 1 flows upward inside the crystallization tower body 1, and the cold air cools the solution sprayed from the sprayer 3, thereby achieving the effect of cooling the solution. Most of the solution will form crystals after contacting with the cold air, and then the crystals and a small part of the solution flow downward, and the crystals and solution can be collected through the collecting tube 14. During the solution collection process, because the collecting tube 14 is in a filter-like configuration, the solution flows downward through the collecting tube 14, and the crystals remain in the collecting tube 14. The delivery pump 7 works, and the solution flowing into the interior of the crystallization tower body 1 is transported to the tee pipe 4 through the connecting pipe 8 and the delivery pipe 6, and the solution is collected through the tee pipe 4. The crystals produced after the processing all fall into the collecting tube 14. During the solution crystallization process, the first gear 24 is driven to rotate by the first driving motor 23, so that the second gear 25 drives the rotating rod 26 and the third gear 27 to rotate, and then the gear ring 28 drives the slip ring 29 to rotate along with the third gear 27. The rotation of the slip ring 29 simultaneously drives the two guide blocks 30 to slide under the guide ring 31, thereby improving the stability of the rotation of the slip ring 29. The rotation of the slip ring 29 can drive the connecting plate 32 and the scraper 33 to rotate. The outer wall of the collecting tube 14 and the inner wall of the connecting tube 9 can be scraped by the scraper 33, which can not only prevent small crystals from clogging the filter holes on the outer wall of the collecting tube 14, but also can scrape the residual solvent on the inner wall of the connecting tube 9, thereby preventing the solution filtered from the inside of the collecting tube 14 from remaining on the inner wall of the connecting tube 9.

[0042] After the potassium tert-butoxide solution is crystallized, the two cylinders 11 push the moving ring 12 to move upward. When the moving ring 12 moves upward, it pushes the moving block 13, the collecting cylinder 14, the scraping ring 15 and the scraping rod 16 to move upward. When the scraping ring 15 moves upward, the crystals remaining on the inner wall of the crystallization tower body 1 can be scraped off. The scraped crystals fall into the collecting cylinder 14 through the scraping ring 15. At the same time, when the collecting cylinder 14 moves upward, the sliding cylinder 18 and the slider 19 can be pushed upward. Because the screw 20 is located at the inner groove of the slider 19, when the slider 16 moves upward, the sliding cylinder 18 and the slider 19 can be pushed upward. When the block 19 slides on the outer wall of the screw 20, the slider 19 on the outer wall of the screw 20 rotates. The rotation of the slider 19 can drive the slide cylinder 18 to rotate, and then drive the guide ring 17 and the collecting cylinder 14 to rotate with the slide cylinder 18. When the collecting cylinder 14 rotates, it drives the scraping ring 15 and the scraping rod 16 to rotate, thereby being able to scrape off the crystals remaining on the inner wall of the crystallization tower body 1. At the same time, the collecting cylinder 14 can collect and process the crystals scraped off the inner wall of the crystallization tower body 1, and when the collecting cylinder 14 rotates, it can also throw out the residual solvent inside the collecting cylinder 14;

[0043] When the upper end of the slider 19 contacts the lower end of the support block 21, the two cylinders 11 pull the moving ring 12 downward, thereby driving the collecting barrel 14 to move downward, the slide barrel 18 and the slider 19 move downward, and the slider 19 is located on the outer wall of the screw 20 and rotates, continuing to drive the collecting barrel 14 to rotate. When moving downward, the moving ring 12 can scrape the solution remaining on the lower part of the inner wall of the crystallization tower body 1, and then the solution scraped by the moving ring 12 can flow downward through the inner wall of the connecting barrel 9. When the collecting barrel 14 moves to the inside of the connecting barrel 9, at this time, one side of the collecting barrel 14 contacts one side of the scraper 33, and the discharge pipe 34 is inserted into the inside of one end of the guide pipe 35. The discharge valve on the outer wall of the discharge pipe 34 is opened, and the crystals inside the collecting barrel 14 are guided to the discharge pipe 34 through the guide ring 17. The crystals are transported to the Inside the filter cartridge 37, the feeding auger 40 is driven to rotate by the second driving motor 39, and then the feeding auger 40 transports the crystals inside the filter cartridge 37 to one side. When the crystals are located inside the filter cartridge 37 and move to one side, the smaller crystals fall into the fixed cylinder 36 through the first filter hole on the outer wall of the filter cartridge 37. The smaller crystals can be guided to one of the discharge pipes 41 through the two discharge rings 38 on the outer wall of the filter cartridge 37. The feeding auger 40 drives the larger crystals to be transported to one side inside the filter cartridge 37. The larger crystals fall into the fixed cylinder 36 through the second filter hole. The larger crystals can be guided to the other discharge pipe 41 through the two discharge rings 38 at the second filter hole on the outer wall of the filter cartridge 37, thereby realizing the separation and processing of crystals of different sizes, facilitating the subsequent processing of potassium tert-butoxide after crystallization.

[0044] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the invention as claimed.

Claims

1. A crystallization tower for preparing potassium tert-butoxide, comprising a crystallization tower body (1), characterized in that: The lower part of one side of the crystallization tower body (1) is connected to an air inlet pipe (2), the upper part of one side of the crystallization tower body (1) is connected to an infusion assembly, the lower part of the inner wall of the crystallization tower body (1) is connected to a collecting assembly, the collecting assembly includes a connecting tube (9), the lower part of the inner wall of the connecting tube (9) is connected to a support ring (10), both sides of the upper end of the support ring (10) are connected to cylinders (11), the upper ends of the two cylinders (11) extend through the upper end of the connecting tube (9), the upper ends of the two cylinders (11) are connected to a moving ring (12), both sides of the upper end of the moving ring (12) are slidably connected to moving blocks (13), a moving groove is opened at the upper end of the moving ring (12) corresponding to the moving block (13), the lower ends of the two moving blocks (13) are located in the moving groove and slide, the upper ends of the two moving blocks (13) are connected to a collecting tube (14), the upper end of the collecting tube (14) is connected to a cleaning assembly, the middle part of the lower end of the collecting tube (14) is connected to a separation assembly, and the lower part of one side of the crystallization tower body (1) is connected to an anti-blocking assembly; The cleaning component includes a scraper ring (15), which is fixed to the upper end of the collecting tube (14), and scraper rods (16) are connected to both sides of the upper end of the scraper ring (15), and one side of the two scraper rods (16) contacts the two sides of the inner wall of the crystallization tower body (1), and the lower end of the inner wall of the collecting tube (14) is connected to a guide ring (17), and the upper end of the guide ring (17) is connected to a slide tube (18), and the upper part of the inner wall of the slide tube (18) is connected to a slider (19), and the inner wall of the slider (19) is slidably connected to a screw rod (20), and a slide groove is provided on the slider (19) corresponding to the screw rod (20), and the upper end of the screw rod (20) is connected to a support block (21), and both sides of the support block (21) are connected to support rods (22), and one end of the two support rods (22) is connected to the upper parts of the inner wall of the crystallization tower body (1); The anti-blocking component includes a first driving motor (23), an output end of the first driving motor (23) is connected to a first gear (24), one end of the first gear (24) extends through the inside of the crystallization tower body (1), one end of the first gear (24) is located inside the connecting tube (9), one side of the first gear (24) is meshedly connected to the second gear (25), the inner wall of the second gear (25) is connected to a rotating rod (26), the upper end of the rotating rod (26) is rotatably connected to the lower end of the support ring (10), the lower end of the rotating rod (26) extends through the lower end of the connecting tube (9), the lower end of the rotating rod (26) is connected to a third gear (27), one side of the third gear (27) is meshedly connected to a gear ring (28), and the inner wall of the gear ring (28) is connected to a slip ring (29); One side of the inner wall of the slip ring (29) is connected to a connecting plate (32), and one side of the upper end of the connecting plate (32) is connected to a scraper (33). One side of the scraper (33) contacts one side of the inner wall of the connecting cylinder (9), and the other side of the scraper (33) contacts one side of the outer wall of the collecting cylinder (14).

2. A crystallization tower for preparing potassium tert-butoxide according to claim 1, characterized in that, The infusion assembly comprises a sprayer (3), one end of the sprayer (3) extends through the interior of the crystallization tower body (1), one end of the sprayer (3) is connected to a three-way pipe (4), the upper end of the three-way pipe (4) is connected to a liquid inlet pipe (5), the lower end of the three-way pipe (4) is connected to a delivery pipe (6), the lower end of the delivery pipe (6) is connected to a delivery pump (7), the output end of the delivery pump (7) is connected to the lower end of the delivery pipe (6), the input end of the delivery pump (7) is connected to a connecting pipe (8), and one end of the connecting pipe (8) extends through the interior of the crystallization tower body (1).

3. A crystallization tower for preparing potassium tert-butoxide according to claim 1, characterized in that, The upper end of the slip ring (29) is connected to a guide block (30), and the lower end of the connecting tube (9) is connected to a guide ring (31) corresponding to the two guide blocks (30). The lower end of the guide ring (31) is provided with a guide groove corresponding to the two guide blocks (30), and the upper ends of the two guide blocks (30) are located in the guide groove and slide.

4. A crystallization tower for preparing potassium tert-butoxide according to claim 1, characterized in that, The separation component includes a discharge pipe (34), the lower part of the outer wall of the discharge pipe (34) is sleeved with a guide pipe (35), the lower end of the guide pipe (35) is connected to a fixed cylinder (36), the two ends of the fixed cylinder (36) are respectively connected to the lower parts of the inner wall of the crystallization tower body (1), the middle part of the inner wall of the two ends of the fixed cylinder (36) is connected to a filter cylinder (37), the two sides and the middle part of the outer wall of the filter cylinder (37) are connected to a discharge ring (38), the outer walls of multiple discharge rings (38) are respectively connected to the inner wall of the fixed cylinder (36), and the shape of one side of the discharge ring (38) is set in an inclined shape.

5. A crystallization tower for preparing potassium tert-butoxide according to claim 4, characterized in that, A second drive motor (39) is connected to one end of the fixed cylinder (36) on one side of the crystallization tower body (1), and the output end of the second drive motor (39) passes through the crystallization tower body (1), the fixed cylinder (36) and the filter cylinder (37) in sequence and extends to the inside of the filter cylinder (37). The output end of the second drive motor (39) is connected to a feed screw (40), and one end of the feed screw (40) is connected to one end of the inner wall of the filter cylinder (37). Both sides of the lower end of the fixed cylinder (36) are connected to discharge pipes (41), and one end of the two discharge pipes (41) respectively passes through and extends to both sides of the crystallization tower body (1).

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