Ultralow-temperature continuous crystallizer

Abstract

The invention relates to the technical field of crystallizers, in particular to an ultralow-temperature continuous crystallizer. The ultralow-temperature continuous crystallizer comprises a crystallization barrel, a feeding pipe for conveying materials and a cooling assembly for conducting heat exchange on the materials are inserted into the crystallization barrel, a flow guide barrel is fixedly installed in the crystallization barrel, and a stirring assembly for mixing the materials is arranged in the flow guide barrel. When the device is used, a rotating rod in the stirring assembly can drive an adapter ring and a scraping barrel in the adapter ring to move up and down, and at the moment, the inner wall of the scraping barrel which moves up and down can abut against the outer wall of the cold conduction pipe to scrape and clean crystals attached to the outer wall of the cold conduction pipe; therefore, the influence of crystal attachment on the outer wall of the cold conduction pipe on the later-stage cold conduction effect and the overall crystallization effect of the device can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of crystallizers, in particular to an ultra-low temperature continuous crystallizer. Background Art

[0002] Continuous crystallizer refers to a device that can achieve continuous crystallization production compared to traditional single-tank intermittent crystallization. Evaporative crystallization also belongs to the category of continuous crystallization, but usually refers to cooling crystallization or reaction crystallization equipment, that is, a crystallization device that can achieve continuous feeding, continuous discharging, and continuous filtration.

[0003] During the use of the existing crystallizer, when the material contacts and reacts with the cooling tube, the crystals produced by the material reaction are likely to adhere to the outer wall of the cooling tube. As the crystals adhere and aggregate, it is easy to affect the subsequent cooling effect of the cooling tube, thereby affecting the overall crystallization effect of the device.

[0004] Therefore, it is necessary to provide a new ultra-low temperature continuous crystallizer to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an ultra-low temperature continuous crystallizer.

[0006] The ultra-low temperature continuous crystallizer provided by the present invention comprises a crystallization cylinder, wherein a feeding pipe for conveying materials and a cooling component for heat exchange of materials are inserted inside the crystallization cylinder, a guide cylinder is fixedly installed inside the crystallization cylinder, and a toggle component for mixing materials is arranged inside the guide cylinder;

[0007] The cooling assembly comprises an upper liquid guide ring and a lower liquid guide ring, a plurality of connected cooling pipes are inserted between the upper liquid guide ring and the lower liquid guide ring, a liquid drain pipe fixedly connected and connected to the upper liquid guide ring is provided on the side wall of the upper liquid guide ring, the outer wall of the liquid drain pipe is fixedly connected to the inner wall of the crystallization cylinder, and one end of the liquid drain pipe away from the upper liquid guide ring extends to the outside of the crystallization cylinder;

[0008] The toggle assembly includes a rotating rod, which is rotatably arranged in the crystallization cylinder. A threaded adapter frame is sleeved on the outer wall of the rotating rod. A fixedly connected adapter ring is installed at the bottom end of the adapter frame. A plurality of evenly distributed mounting holes are opened inside the adapter ring. A threaded scraper cylinder is inserted into the mounting hole, and the inner wall of the scraper cylinder is abutted against and slidably connected to the outer wall of the cooling tube.

[0009] Preferably, a fixedly connected stirring paddle is provided at the bottom end of the rotating rod, a rotatably connected rotating blade is provided inside the adapter ring, a plurality of rotating blades are provided and are distributed in a ring inside the adapter ring, the stirring paddle is located inside the upper liquid guide ring and the lower liquid guide ring, and a fixedly connected driving motor is provided at the top end of the rotating rod.

[0010] Preferably, a plurality of docking holes distributed in a ring shape are formed on the opposite surfaces of the upper liquid guide ring and the lower liquid guide ring. The inner wall of the docking hole in the upper liquid guide ring is threadedly connected to the top end of the cold guide tube, the inner wall of the docking hole in the lower liquid guide ring abuts against the bottom end of the cold guide tube, and a plugging block connected by threading is arranged on the inner wall of the docking hole.

[0011] Preferably, a movably connected plugging base is sleeved at the bottom of the flow guide cylinder. A rotatable block rotatably connected is arranged at the center inside the plugging base. The top of the rotatable block abuts against the bottom end of the rotating rod. The inside of the plugging base is fixedly connected to the bottom of the lower liquid guide ring. A rotary connection pipe is fixedly installed inside the plugging base. Connecting hoses communicating with each other are arranged at both ends of the rotary connection pipe. The connecting hose at the top end of the rotary connection pipe communicates with the inside of the lower liquid guide ring. The other end of the connecting hose at the bottom end of the rotary connection pipe is provided with a communicating liquid inlet pipe. The outer wall of the liquid inlet pipe is fixedly connected to the inner wall of the crystallization cylinder, and one end of the liquid inlet pipe away from the plugging base extends outside the crystallization cylinder.

[0012] Preferably, a plurality of filter meshes distributed in a ring shape are inlaid on the inner wall of the flow guide cylinder. The filter meshes are located above the upper liquid guide ring. Symmetrically distributed cylinders are fixedly installed on the outer wall of the flow guide cylinder, and a docking frame is fixedly installed at the output end of the cylinder.

[0013] Preferably, a positioning frame is fixedly installed at the relative position between the top of the plugging base and the docking frame. The inner wall of the positioning frame abuts against and is slidably connected to the outer wall of the docking frame, and the positioning frame and the docking frame are fixed by bolts.

[0014] Preferably, a hinged cylinder door is arranged on the side wall of the crystallization cylinder. A cylinder cover is fixedly installed at the top of the crystallization cylinder. The bottom of the cylinder cover is fixedly connected to the outer wall of the driving motor. A flow guide cover is fixedly installed below the plugging base inside the crystallization cylinder, and a filter disc connected by threading is arranged at the center of the flow guide cover.

[0015] Preferably, the inner wall of the cylinder cover is fixedly connected to the outer wall of the feeding pipe. The feeding pipe is of a Y-shaped structure. The independent end of the Y-shaped feeding pipe is located above the cylinder cover. The other two ends of the Y-shaped feeding pipe are provided with an annular conduit fixedly connected and communicating with each other. A plurality of communicating and annularly distributed flow guide pipes are arranged at the bottom of the annular conduit. One ends of the plurality of flow guide pipes away from the annular conduit are provided with a discharging ring fixedly connected and communicating with each other. A plurality of communicating discharging pipes are arranged at the inner bottom of the discharging ring, and both the discharging ring and the rotary connection pipe are located outside the upper liquid guide ring and the lower liquid guide ring and below the inside of the flow guide cylinder.

[0016] Preferably, the toggle assembly also includes a support ring, which is fixedly mounted above the liquid guide ring on the inner wall of the crystallization cylinder, and a symmetrically distributed guide frame is fixedly mounted inside the support ring, and the inner wall of the guide frame is abutted and slidably connected to the end of the adapter frame.

[0017] Preferably, the outer wall of the scraper drum is provided with symmetrically distributed annular positioning grooves, and symmetrically distributed positioning half rings are inserted inside the annular positioning grooves. The outer walls of the positioning half rings are abutted against the outer walls of the adapter ring, and the opposite surfaces of the two positioning half rings in the same annular positioning groove are adsorbed to each other through magnetic blocks.

[0018] Compared with the related art, the ultra-low temperature continuous crystallizer provided by the present invention has the following beneficial effects:

[0019] 1. The present invention is provided with a toggle assembly. When in use, the rotating rod in the toggle assembly will drive the adapter ring and the scraper drum inside it to move up and down. At this time, the inner wall of the scraper drum that moves up and down can be against the outer wall of the cooling tube to scrape and clean the crystals adhered to the outer wall of the cooling tube, thereby reducing the influence of the outer wall of the cooling tube due to the attachment of crystals on the later cooling effect and the overall crystallization effect of the device.

[0020] 2. When the present invention is in use, the stirring paddle and the transfer blade in the stirring assembly can also rotate synchronously with the rotation of the rotating rod, so as to achieve stirring and mixing of the material inside the guide tube, and then make the contact between the material inside the guide tube and the multiple cooling tubes more repeated and uniform, thereby helping to improve the crystallization effect when the device is used.

[0021] 3. The present invention connects the upper liquid guide ring, the lower liquid guide ring and the cooling tube in the cooling assembly by a split assembly method. During subsequent use, it is convenient for the staff to flexibly disassemble and install the cooling tube between the upper liquid guide ring and the lower liquid guide ring, which not only makes it more convenient for the staff to clean the cooling tube later, but also can adjust the number of cooling tubes, thereby changing the cooling area of ​​the cooling assembly, so that the device can meet the requirements of the cooling area required for different crystallization materials, thereby improving the use experience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a preferred embodiment of the ultra-low temperature continuous crystallizer provided by the present invention;

[0023] Figure 2 for Figure 1 The schematic diagram of the position structure of the feeding tube, cooling assembly and toggle assembly shown;

[0024] Figure 3 for Figure 2 The schematic diagram of the structure of the toggle assembly shown;

[0025] Figure 4 for Figure 3 A schematic diagram of a partial cross-sectional structure of a scraper barrel and its components shown;

[0026] Figure 5 for Figure 2 A schematic diagram of the structure of the cooling assembly and the blocking base section shown;

[0027] Figure 6 for Figure 6 A schematic diagram of a partial cross-sectional structure of the blocking base and its components shown;

[0028] Figure 7 for Figure 1 The schematic diagram of the structure of the feeding tube and its components shown;

[0029] Figure 8 for Figure 1 A partial cross-sectional structural diagram of the crystallization cylinder and its components is shown.

[0030] Numbers in the figure: 1, crystallization cylinder; 11, cylinder door; 12, cylinder cover; 13, guide cylinder; 131, filter screen; 14, guide cover; 141, filter plate; 2, feeding pipe; 21, annular guide tube; 22, guide pipe; 23, discharge ring; 231, discharge pipe; 3, cooling assembly; 31, upper liquid guide ring; 311, discharge pipe; 32, lower liquid guide ring; 33, cooling pipe; 34, docking hole; 341, blocking block; 35, liquid inlet pipe; 4 , toggle assembly; 41, rotating rod; 411, stirring paddle; 42, driving motor; 43, supporting ring; 431, guide frame; 44, adapter frame; 45, adapter ring; 451, mounting hole; 452, rotating blade; 46, scraper; 461, annular positioning groove; 47, positioning half ring; 5, sealing base; 51, rotating block; 52, adapter tube; 521, connecting hose; 53, positioning frame; 54, cylinder; 541, docking frame. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0033] See also Figures 1 to 8, the ultra-low temperature continuous crystallizer provided by the embodiment of the present invention. The ultra-low temperature continuous crystallizer includes a crystallization cylinder 1. Inside the crystallization cylinder 1, a feeding pipe 2 for conveying materials and a cooling assembly 3 for heat exchange of the materials are inserted. A guide cylinder 13 is fixedly installed inside the crystallization cylinder 1, and a stirring component 4 for mixing the materials is arranged inside the guide cylinder 13.

[0034] In the embodiment of the present invention, please refer to Figures 1 to 8 , the stirring component 4 includes a rotating rod 41. The rotating rod 41 is rotatably arranged inside the crystallization cylinder 1. A transfer frame 44 connected by threads is sleeved on the outer wall of the rotating rod 41. A transfer ring 45 fixedly connected is installed at the bottom end of the transfer frame 44. A plurality of uniformly distributed mounting holes 451 are opened inside the transfer ring 45. A scraping cylinder 46 connected by threads is inserted inside the mounting hole 451. The inner wall of the scraping cylinder 46 abuts against and is slidably connected to the outer wall of the cold conduction pipe 33. A stirring paddle 411 fixedly connected is arranged at the bottom end of the rotating rod 41. A rotating blade 452 rotatably connected is arranged inside the transfer ring 45. There are multiple rotating blades 452 and they are annularly distributed inside the transfer ring 45. The stirring paddle 411 is located inside the upper liquid guide ring 31 and the lower liquid guide ring 32. And a driving motor 42 fixedly connected is arranged at the top end of the rotating rod 41.

[0035] It should be noted that: through the abutment of the inner wall of the scraping cylinder 46 and the outer wall of the cold conduction pipe 33, during use, when the driving motor 42 drives the rotating rod 41 to rotate, the rotating rod 41 will drive the transfer frame 44 to move in the vertical direction inside the guide frame 431 through the threaded structure. At this time, the moving transfer frame 44 will drive the bottom transfer ring 45 and the scraping cylinder 46 inside it to move synchronously on the outer wall of the cold conduction pipe 33. The moving scraping cylinder 46 will scrape and clean the crystals adhered to the cold conduction pipe 33, so as to reduce the adhesion and accumulation of the crystals generated during the material reaction on the outer wall of the cold conduction pipe 33 and the influence on the later cold conduction of the cold conduction pipe 33. Furthermore, the cold conduction pipe 33 can stably perform heat exchange operations later.

[0036] It should also be noted that: at the same time, during the rotation of the rotating rod 41, the stirring paddle 411 at the bottom end of the rotating rod 41 will rotate synchronously with the rotating rod 41 to stir and mix the materials inside the guide cylinder 13. And during the movement of the transfer ring 45 along with the transfer frame 44, the rotating blade 452 in the transfer ring 45 will stir the materials in the vertical direction during the movement, so as to realize the combined mixing and stirring of the materials. Therefore, the contact between the materials inside the guide cylinder 13 and the cold conduction pipe 33 can be made more uniform, and furthermore, the heat exchange effect of the device can be assisted to be improved.

[0037] In the embodiment of the present invention, please refer to Figures 1 to 8, the cooling assembly 3 includes an upper liquid guide ring 31 and a lower liquid guide ring 32. A plurality of connected cooling pipes 33 are inserted between the upper liquid guide ring 31 and the lower liquid guide ring 32. A drain pipe 311 which is fixedly connected and communicates with the upper liquid guide ring 31 is provided on the side wall of the upper liquid guide ring 31. The outer wall of the drain pipe 311 is fixedly connected to the inner wall of the crystallization cylinder 1, and the end of the drain pipe 311 away from the upper liquid guide ring 31 extends outside the crystallization cylinder 1. A number of annularly distributed docking holes 34 are provided on the opposite surfaces of the upper liquid guide ring 31 and the lower liquid guide ring 32. The inner wall of the docking hole 34 in the upper liquid guide ring 31 is threadedly connected to the top end of the cooling pipe 33, the inner wall of the docking hole 34 in the lower liquid guide ring 32 abuts against the bottom end of the cooling pipe 33, and a plug block 341 connected by thread is provided on the inner wall of the docking hole 34.

[0038] It should be noted that: by movably connecting the cooling pipe 33 between the upper liquid guide ring 31 and the lower liquid guide ring 32, before using this device, the staff can first take out the cooling pipe 33 and the scraping cylinder 46 of the required specifications for crystallization, and screw the scraping cylinder 46 into the installation hole 451 through the thread structure. Then, the cooling pipe 33 can be inserted through it, and the top end of the cooling pipe 33 is threadedly connected to the inner wall of the docking hole 34 in the upper liquid guide ring 31 until the required cooling pipe 33 is completely installed in the upper liquid guide ring 31. Then, the plugging base 5 can be taken out and installed. When installing the plugging base 5, the docking hole 34 in the lower liquid guide ring 32 on the plugging base 5 will abut against the bottom end of the cooling pipe 33. Thus, the assembly of the cooling pipe 33, the upper liquid guide ring 31 and the lower liquid guide ring 32 can be completed, thereby improving the flexibility of the installation of the cooling pipe of this device and the portability of the later cleaning of the cooling pipe 33;

[0039] And through the setting of the plug block 341, when installing the cooling pipe 33, when the cooling pipe 33 is not completely installed, the plug block 341 can be screwed into the docking hole 34, so as to realize the plugging of the remaining docking holes 34. Therefore, it can prevent materials from entering the inside of the upper liquid guide ring 31 and the lower liquid guide ring 32 through the docking holes 34 and causing blockage inside the two.

[0040] In the embodiment of the present invention, please refer to Figures 1 to 8, a plugging base 5 is sleeved at the bottom of the draft tube 13, a rotatable block 51 is rotatably connected to the center inside the plugging base 5, the top of the rotatable block 51 abuts against the bottom end of the rotating rod 41, the inside of the plugging base 5 is fixedly connected to the bottom of the lower liquid guide ring 32, a rotary connecting pipe 52 is fixedly installed inside the plugging base 5, connecting hoses 521 are provided at both ends of the rotary connecting pipe 52, the connecting hose 521 at the top end of the rotary connecting pipe 52 communicates with the inside of the lower liquid guide ring 32, and the other end of the connecting hose 521 at the bottom end of the rotary connecting pipe 52 is provided with a communicating liquid inlet pipe 35. The outer wall of the liquid inlet pipe 35 is fixedly connected to the inner wall of the crystallization cylinder 1, and the end of the liquid inlet pipe 35 away from the plugging base 5 extends outside the crystallization cylinder 1. A plurality of annularly distributed filter meshes 131 are inlaid on the inner wall of the draft tube 13, and the filter meshes 131 are located above the upper liquid guide ring 31. Symmetrically distributed cylinders 54 are fixedly installed on the outer wall of the draft tube 13, and a docking frame 541 is fixedly installed at the output end of the cylinder 54. A positioning frame 53 is fixedly installed at the relative position of the top of the plugging base 5 and the docking frame 541. The inner wall of the positioning frame 53 abuts against and is slidably connected to the outer wall of the docking frame 541, and the positioning frame 53 and the docking frame 541 are fixed by bolts.

[0041] It should be noted that: through the setting of the rotatable block 51 in the plugging base 5, after the installation of the plugging base 5 is completed, the top of the rotatable block 51 will abut against the bottom end of the rotating rod 41. Thus, when the rotating rod 41 rotates later, the rotating rod 41 will drive the rotatable block 51 to move synchronously, and then the support for the end of the rotating rod 41 away from the drive motor 42 can be realized. Therefore, the rotation stability of the rotating rod 41 during use can be improved;

[0042] It should also be noted that: by using the connecting hose 521 to connect the rotary connecting pipe 52 with the lower liquid guide ring 32 and the liquid inlet pipe 35, when the cylinder 54 works to drive the plugging base 5 to move, the connecting hose 521 can move synchronously, so as to avoid the phenomenon that the connection between the lower liquid guide ring 32 and the liquid inlet pipe 35 hinders the movement of the plugging base 5. Therefore, the plugging base 5 can move smoothly;

[0043] At the same time, through the setting of the filter meshes 131, as the feeding pipe 2 continuously injects into the draft tube 13, when the crystallized material inside the draft tube 13 overflows from the inside of the draft tube 13, the filter meshes 131 will filter the overflowing material, so that the crystals with relatively small crystals can be filtered, and the crystals can continue to react inside the draft tube 13.

[0044] In the embodiment of the present invention, please refer to Figures 1 to 8A hinged cylinder door 11 is provided on the side wall of the crystallization cylinder 1, a cylinder cover 12 is fixedly installed on the top of the crystallization cylinder 1, the bottom of the cylinder cover 12 is fixedly connected to the outer wall of the driving motor 42, and a flow guide cover 14 is fixedly installed below the sealing base 5 inside the crystallization cylinder 1, and a threaded filter disc 141 is provided at the center of the flow guide cover 14.

[0045] It should be noted that: by opening the cylinder door 11, it is convenient for the staff to operate inside the crystallization cylinder 1 after opening the cylinder door 11, and by arranging the guide cover 14 under the blocking base 5, the use

[0046] During the process, the guide cover 14 can perform secondary filtration on the material overflowing from the guide tube 13, thereby further reducing the probability of discharge of fine crystals.

[0047] In the embodiments of the present invention, please refer to Figures 1 to 8 The inner wall of the cylinder cover 12 is fixedly connected to the outer wall of the feeding pipe 2. The feeding pipe 2 is a Y-shaped structure. The independent end of the Y-shaped feeding pipe 2 is located above the cylinder cover 12. The other two ends of the Y-shaped feeding pipe 2 are installed with the same fixedly connected and mutually connected annular conduits 21. The bottom of the annular conduit 21 is provided with a plurality of connected and annularly distributed flow guide pipes 22. The ends of the plurality of flow guide pipes 22 away from the annular conduit 21 are installed with the same fixedly connected and mutually connected discharge rings 23. The inner bottom of the discharge ring 23 is provided with a plurality of connected discharge pipes 231. The discharge ring 23 and the transfer pipe 52 are both located on the outside of the upper liquid guide ring 31 and the lower liquid guide ring 32, and are located below the inside of the flow guide cylinder 13.

[0048] It should be noted that: by arranging the discharge ring 23 and the discharge pipe 231 at the bottom of the guide tube 13, during use, the material injected from the inside of the feed pipe 2 will first flow to the inner bottom of the guide tube 13, and flow upward at the inner bottom of the guide tube 13, so that the newly injected material can smoothly contact the cooling component 3 for heat exchange reaction, making the reaction of the material more comprehensive.

[0049] In the embodiments of the present invention, please refer to Figures 1 to 8 The toggle assembly 4 also includes a support ring 43, which is fixedly mounted above the liquid guide ring 31 on the inner wall of the crystallization cylinder 1, and a symmetrically distributed guide frame 431 is fixedly mounted inside the support ring 43, and the inner wall of the guide frame 431 abuts against and is slidably connected to the end of the adapter frame 44, and a symmetrically distributed annular positioning groove 461 is opened on the outer wall of the scraper cylinder 46, and a symmetrically distributed positioning semi-ring 47 is inserted into the annular positioning groove 461, and the outer wall of the positioning semi-ring 47 abuts against the outer wall of the adapter ring 45, and the opposite surfaces of the two positioning semi-rings 47 in the same annular positioning groove 461 are adsorbed against each other through magnetic blocks.

[0050] It should also be noted that: by setting the positioning semi-ring 47, after the scraping cylinder 46 is installed inside the installation hole 451, the positioning semi-ring 47 can be taken out and inserted into the annular positioning groove 461. At this time, the positioning semi-rings 47 will adsorb each other through the magnetic blocks, so as to form a complete positioning ring. During this process, by the outer wall of the positioning semi-ring 47 abutting against the outer wall of the adapter ring 45, it is possible to prevent the scraping cylinder 46 from rotating due to friction with the material during use, resulting in the scraping cylinder 46 falling off from the inside of the installation hole 451. Therefore, the stability of the scraping cylinder 46 during use can be improved.

[0051] The working principle of the ultra-low temperature continuous crystallizer provided by the present invention is as follows:

[0052] When using this device, the material to be crystallized can be adjusted into the crystallization cylinder 1 through the feeding pipe 2. The material entering the feeding pipe 2 will flow into the discharge ring 23 through the annular conduit 21 and the diversion pipe 22, and be discharged into the diversion assembly through the discharge pipe 231 communicated inside the discharge ring 23. When the discharged material fills the inside of the diversion cylinder 13, it will flow outwards through the filter screen 131 at the top of the diversion cylinder 13;

[0053] During this process, the external coolant will flow into the lower liquid guide ring 32 through the liquid inlet pipe 35. At this time, the coolant entering the lower liquid guide ring 32 will flow into the upper liquid guide ring 31 through the cooling pipes 33 communicated with the inside of the lower liquid guide ring 32, and is discharged outwards until it passes through the upper liquid guide ring 31 and the discharge pipe 311 communicated inside it, so as to realize the circulating flow of the coolant. And through the circulating flow of the coolant inside the cooling pipes 33, heat exchange can be carried out through the contact between the cooling pipes 33 and the external material to cause the material to crystallize. The crystallization of the material will accumulate at the inner bottom of the diversion cylinder 13 due to the action of gravity, and the non-crystallized material will flow out through the crystallization cylinder 1, so as to carry out the continuous crystallization operation of the material;

[0054] During this process, the driving motor 42 in the toggling assembly 4 can also be controlled to rotate in a cyclic and reciprocating manner. The working driving motor 42 will drive the rotating rod 41 to rotate. The rotating rotating rod 41 will drive the bottom stirring frame to continue stirring and mixing the materials inside the diversion cylinder 13. At the same time, the rotating rod 41 can drive the adapter frame 44 connected by external threads to move vertically inside the guiding frame 431 through the thread structure on the outer wall. The vertically moving adapter frame 44 will drive the bottom adapter ring 45 to move synchronously. The moving adapter ring 45 will drive the scraping cylinder 46 inside to move on the outer wall of the cold conduction pipe 33. The inner wall of the moving scraping cylinder 46 will scrape the crystals adhering to the outer wall of the cold conduction pipe 33 by abutting against the outer wall of the cold conduction pipe 33, so as to reduce the influence of the crystals adhering to the outer wall of the cold conduction pipe 33 on the cold conduction effect of the cold conduction pipe 33 during use;

[0055] At the same time, during the movement of the adapter ring 45, the rotating blades 452 inside can be driven to move synchronously. The moving rotating blades 452 will rotate by abutting against the materials, so as to realize the secondary toggling of the materials. Therefore, the mixing of the materials inside the diversion cylinder 13 can be made more sufficient, and then the contact between the materials and the cold conduction pipe 33 can be made more uniform, improving the crystallization effect of the device;

[0056] After the use of the device is completed later, the cylinder door 11 can be opened first, and then the cylinder 54 is controlled to work. The working cylinder 54 will drive the plugging base 5 to move downward, so that the plugging base 5 can be separated from the bottom end of the diversion cylinder 13. The downward moving plugging base 5 will drive the lower liquid guiding ring 32 to move synchronously. The downward moving lower liquid guiding ring 32 will be separated from the bottom end of the cold conduction pipe 33. When the plugging base 5 moves to the required position, the connection between the corresponding lower liquid guiding ring 32 and the liquid inlet pipe 35 of the connecting hose 521 can be separated first, and then the fixing bolts between the positioning frame 53 and the docking frame 541 are unscrewed to release the connection between the two. At this time, the plugging base 5 can be taken out of the crystallization cylinder 1, and the crystals in the plugging base 5 can be transferred to the required part;

[0057] After the crystal is taken, the heat conduction tube 33 can be controlled to rotate, so that the heat conduction tube 33 can be separated from the upper liquid guide ring 31. Therefore, it is convenient for the staff to disassemble, clean and maintain the heat conduction tube 33 in the later stage. At the same time, during the later use process, the staff can also take out the required number and corresponding specifications of the heat conduction tubes 33 according to the characteristics of the materials to be processed, and insert the heat conduction tubes 33 into the adapter ring 45 and the scraping cylinder 46 in sequence, and make the top end of the heat conduction tube 33 be threadedly connected to the docking hole 34 in the upper liquid guide ring 31. Then, take out the bolt and screw it between the positioning frame 53 and the docking frame 541, so as to connect the plugging base 5 to the air cylinder 54. Then, control the air cylinder 54 to contract to drive the plugging base 5 and the lower liquid guide ring 32 inside it to move until the inside of the docking hole 34 in the lower liquid guide ring 32 abuts against the bottom end of the heat conduction tube 33, and the inner wall of the plugging base 5 abuts against the bottom end of the flow guide cylinder 13, then the assembly of the lower liquid guide ring 32 and the installation of the plugging base 5 can be completed;

[0058] By flexibly installing the number of the heat conduction tubes 33, the heat conduction area in the cooling assembly 3 can be changed, and thus the flexibility and application range of the device in the later use can be improved.

[0059] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. Ultra-low temperature continuous crystallizer, characterized in that: include: A crystallization cylinder (1), wherein a feeding pipe (2) for conveying materials and a cooling component (3) for heat exchange with the materials are inserted inside the crystallization cylinder (1), a flow guide cylinder (13) is fixedly installed inside the crystallization cylinder (1), and a toggle component (4) for mixing the materials is provided inside the flow guide cylinder (13); The cooling assembly (3) comprises an upper liquid guide ring (31) and a lower liquid guide ring (32), a plurality of connected cooling pipes (33) are inserted between the upper liquid guide ring (31) and the lower liquid guide ring (32), a liquid discharge pipe (311) fixedly connected and connected to the upper liquid guide ring (31) is provided on the side wall of the upper liquid guide ring (31), an outer wall of the liquid discharge pipe (311) is fixedly connected to the inner wall of the crystallization cylinder (1), and one end of the liquid discharge pipe (311) away from the upper liquid guide ring (31) extends to the outside of the crystallization cylinder (1); The toggle assembly (4) includes a rotating rod (41), which is rotatably arranged in the crystallization cylinder (1), and a threaded adapter frame (44) is sleeved on the outer wall of the rotating rod (41). A fixedly connected adapter ring (45) is installed at the bottom end of the adapter frame (44), and a plurality of evenly distributed mounting holes (451) are opened inside the adapter ring (45). A threaded scraper cylinder (46) is inserted into the mounting hole (451), and the inner wall of the scraper cylinder (46) is abutted against and slidably connected to the outer wall of the cooling tube (33).

2. The ultra-low temperature continuous crystallizer according to claim 1, characterized in that: The bottom end of the rotating rod (41) is provided with a fixedly connected stirring paddle (411), the interior of the adapter ring (45) is provided with a rotatably connected rotating blade (452), a plurality of rotating blades (452) are provided and are distributed in a ring shape inside the adapter ring (45), the stirring paddle (411) is located inside the upper liquid guide ring (31) and the lower liquid guide ring (32), and the top end of the rotating rod (41) is provided with a fixedly connected driving motor (42).

3. The ultra-low temperature continuous crystallizer according to claim 2, characterized in that: The opposing surfaces of the upper liquid guide ring (31) and the lower liquid guide ring (32) are provided with a plurality of annularly distributed docking holes (34); the inner wall of the docking hole (34) in the upper liquid guide ring (31) is threadedly connected to the top end of the cooling tube (33); the inner wall of the docking hole (34) in the lower liquid guide ring (32) is abutted against the bottom end of the cooling tube (33); and the inner wall of the docking hole (34) is provided with a threaded sealing block (341).

4. The ultra-low temperature continuous crystallizer according to claim 1, characterized in that: A movably connected blocking base (5) is sleeved on the bottom of the flow guide tube (13); a rotatably connected rotating block (51) is provided at the center of the blocking base (5); the top of the rotating block (51) abuts against the bottom of the rotating rod (41); the inside of the blocking base (5) is fixedly connected to the bottom of the lower liquid guide ring (32); a transfer tube (52) is fixedly installed inside the blocking base (5); both ends of the transfer tube (52) are provided with communicating connecting hoses (521); the connecting hose (521) at the top end of the transfer tube (52) is communicated with the inside of the lower liquid guide ring (32); the other end of the connecting hose (521) at the bottom end of the transfer tube (52) is provided with a communicating liquid inlet pipe (35); the outer wall of the liquid inlet pipe (35) is fixedly connected to the inner wall of the crystallization tube (1); and the end of the liquid inlet pipe (35) away from the blocking base (5) extends to the outside of the crystallization tube (1).

5. The ultra-low temperature continuous crystallizer according to claim 4, characterized in that: The inner wall of the guide tube (13) is inlaid with a plurality of annularly distributed filter screens (131), and the filter screens (131) are located above the upper liquid guide ring (31). The outer wall of the guide tube (13) is fixedly mounted with symmetrically distributed cylinders (54), and the output end of the cylinder (54) is fixedly mounted with a docking frame (541).

6. The ultra-low temperature continuous crystallizer according to claim 5, characterized in that: A positioning frame (53) is fixedly installed at the top of the blocking base (5) and the corresponding part of the docking frame (541); the inner wall of the positioning frame (53) abuts against and is slidably connected to the outer wall of the docking frame (541); and the positioning frame (53) and the docking frame (541) are fixed by bolts.

7. The ultra-low temperature continuous crystallizer according to claim 2, characterized in that: A hinged cylinder door (11) is provided on the side wall of the crystallization cylinder (1), a cylinder cover (12) is fixedly installed on the top of the crystallization cylinder (1), the bottom of the cylinder cover (12) is fixedly connected to the outer wall of the drive motor (42), and a flow guide cover (14) is fixedly installed below the sealing base (5) inside the crystallization cylinder (1), and a threaded filter disc (141) is provided at the center of the flow guide cover (14).

8. The ultra-low temperature continuous crystallizer according to claim 7, characterized in that: The inner wall of the cylinder cover (12) is fixedly connected to the outer wall of the feeding pipe (2); the feeding pipe (2) is a Y-shaped structure; the independent end of the Y-shaped feeding pipe (2) is located above the cylinder cover (12); the other two ends of the Y-shaped feeding pipe (2) are provided with an annular conduit (21) that is fixedly connected and interconnected; the bottom of the annular conduit (21) is provided with a plurality of flow guide pipes (22) that are connected and annularly distributed; the ends of the plurality of flow guide pipes (22) that are away from the annular conduit (21) are provided with a discharge ring (23) that is fixedly connected and interconnected; the inner bottom of the discharge ring (23) is provided with a plurality of discharge pipes (231) that are connected; and the discharge ring (23) and the transfer pipe (52) are both located outside the upper liquid guide ring (31) and the lower liquid guide ring (32), and are located below the inside of the flow guide cylinder (13).

9. The ultra-low temperature continuous crystallizer according to claim 1, characterized in that: The shifting assembly (4) further comprises a support ring (43), wherein the support ring (43) is fixedly mounted above the liquid guide ring (31) on the inner wall of the crystallization cylinder (1), and a symmetrically distributed guide frame (431) is fixedly mounted inside the support ring (43), and the inner wall of the guide frame (431) abuts against and is slidably connected to the end of the adapter frame (44).

10. The ultra-low temperature continuous crystallizer according to claim 1, characterized in that: The outer wall of the scraper cylinder (46) is provided with symmetrically distributed annular positioning grooves (461), and symmetrically distributed positioning half rings (47) are inserted into the interior of the annular positioning grooves (461). The outer wall of the positioning half ring (47) abuts against the outer wall of the adapter ring (45), and the opposite surfaces of the two positioning half rings (47) in the same annular positioning groove (461) are mutually attracted by a magnetic block.

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