A multi-stage iodine crystallization device

Abstract

The invention discloses a multi-stage iodine crystallization device, including a mounting platform and a damping motor installed at the bottom thereof, a cold water tank, a heating cylinder and two cooling cylinders are installed on the top of the mounting platform, a sealing cover is provided on the top of the cooling cylinder and the cold water tank, a water pump is provided inside the cold water tank, a shunt pipe is provided at the end of the water pump, two reflux pipes and a delivery pipe are respectively and movably penetrated in the sealing cover, a threaded cylinder is nested on the top of the cooling cylinder, a crystallization cylinder is sleeved in the middle thread of the threaded cylinder, and a threaded cover is sleeved on the top thread of the crystallization cylinder. The spiral tube in the present invention rotates rapidly in the gap between the cooling cylinder and the crystallization cylinder, and the spiral tube can quickly stir the cold water, so that the cold water has rapid cold and hot convection, so that the direct heat of the cold water is quickly transferred, the temperature difference of the cold water is greatly reduced, and the efficiency of the cold water absorbing heat is greatly increased, and the iodine vapor crystallization efficiency is high and the iodine vapor crystallization is sufficient. Advantages.

Description

Technical Field

[0001] The invention relates to the technical field of chemical engineering, and in particular to a multi-stage iodine crystallization device. Background Art

[0002] In chemical technology, iodine is often purified by evaporation and crystallization to remove impurities in the iodine raw material to obtain high-purity iodine. Evaporation and crystallization is to heat the iodine raw material to evaporate the iodine into a gaseous state, and then cool it to crystallize the iodine.

[0003] However, in the iodine crystallization device in the prior art, the cooling medium cannot fully convect during the flow process, resulting in a temperature difference in the cooling medium, which makes it impossible to fully utilize the cooling medium and quickly absorb heat, so that the iodine cannot be quickly cooled after evaporation. There are problems such as low iodine crystallization rate and inability to completely crystallize iodine after evaporation. Therefore, it is necessary to provide a multi-stage iodine crystallization device. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art that the cooling medium cannot have sufficient convection during the flow process, resulting in a temperature difference in the cooling medium, so that the cooling medium cannot be fully utilized, and the heat cannot be quickly absorbed, so that the iodine cannot be quickly cooled after evaporation, and there are problems such as low iodine crystallization rate and inability to completely crystallize iodine after evaporation. Therefore, a multi-stage iodine crystallization device is proposed.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a multi-stage iodine crystallization device, comprising a mounting platform and a damping motor installed at the bottom thereof, a cold water tank, a heating cylinder and two cooling cylinders are installed on the top of the mounting platform, the top of the heating cylinder and the cold water tank are sleeved with a sealing cover, a water pump is arranged inside the cold water tank, a shunt pipe is arranged at the end of the water pump, two reflux pipes and a delivery pipe are movably penetrated in the sealing cover, a threaded cylinder is nested on the top of the cooling cylinder, a crystallization cylinder is sleeved in the middle thread of the threaded cylinder, a threaded cover is sleeved on the top of the crystallization cylinder, two sleeve cylinders are embedded on the top of the threaded cover, and the tops of the four sleeve cylinders are respectively Four elbow pipes are sleeved, and three rubber tubes are nested at one end of the four elbow pipes, a circulation pipe is nested at the end of one of the rubber tubes, and the end of another rubber tube is nested with the top of the conveying pipe. A docking tube is nested at one end of the elbow pipe, and a rubber sheet is arranged on the inner wall of the sleeve tube; a driving bevel gear is fixed on the power output end of the top of the damping motor, a sealed bearing is embedded at the bottom of the driving bevel gear, a rotating rod is fixed through the middle of the sealed bearing, a driven bevel gear is fixed at the bottom of the rotating rod, a rotating disk is fixed at the top of the rotating rod, a spiral tube is fixed through the rotating disk, and a partition plate is fixed at the bottom of the threaded cover.

[0006] Further preferably, the shunt pipe is provided with three ports, one of which passes through the side of the cold water tank and is connected to the water pump, and the other two ports of the shunt pipe are respectively connected to the sides of the two cooling cylinders.

[0007] Further preferably, the docking tube is sleeved on the periphery of the sleeve tube, one end of the two return pipes is respectively connected to the top of the sides of the two cooling tubes, and one end of the circulation pipe is connected to the middle of one end of the delivery pipe.

[0008] Further preferably, the driving bevel gear is meshed with two driven bevel gears at the same time, the diameter of the driving bevel gear is greater than twice the diameter of the driven bevel gear, and the center of the driven bevel gear is located in the axial direction of the cooling cylinder.

[0009] Further preferably, the spiral tube is spirally wound around the periphery of the crystallization cylinder, the interior of the spiral tube is hollow so that a spiral cold water flow channel is formed inside the spiral tube, and one end of the spiral tube passes through the rotating disk.

[0010] Further preferably, the partition plate is located in the middle of the crystallization cylinder, the partition plate divides the space inside the crystallization cylinder into two, and the bottom plate of the partition plate does not contact the bottom surface of the inner wall of the crystallization cylinder and there is a certain gap.

[0011] Further preferably, the diverter pipe is located below the rotating disk, the bottom plate of the crystallization cylinder is sleeved inside the cooling cylinder, and a plurality of gaps are opened in the middle of the rubber sheet.

[0012] Further preferably, two docking ports are provided on the top of the cooling cylinder, the positions of the docking ports correspond to the positions of the sleeve cylinder, and the partition plate is located in the middle of the two sleeve cylinders.

[0013] Further preferably, a storage frame is nested at the bottom of the spiral tube, the bottom of the spiral tube passes through one end of the storage frame, the other end of the storage frame remains inclined, the top of the storage frame is fixed to the top of the rotating disk, and a partition bar is provided in the cold water flow channel inside the spiral tube, and the partition bar divides the space of the cold water flow channel into two spiral spaces of different sizes.

[0014] The beneficial effects of the present invention are:

[0015] 1. The spiral tube rotates rapidly in the gap between the cooling tube and the crystallization tube. The spiral tube can quickly stir the cold water, so that the cold water can quickly conduct hot and cold convection, and the direct heat of the cold water can be quickly transferred, which greatly reduces the temperature difference of the cold water and greatly increases the efficiency of the cold water absorbing heat. At the same time, during the rotation of the spiral tube, the cold water flow channel formed inside the spiral tube can quickly transport the cold water from bottom to top, and then the cold water is thrown to the inner wall of the cooling tube through the top of the spiral tube, so that the cold water in the cold water flow channel flows rapidly, thereby increasing the convection rate of the cold water, so that the heat between the cold water is quickly transferred, and the cold water quickly absorbs the heat transferred from the crystallization tube, so that the iodine vapor inside the crystallization tube is quickly cooled and crystallized. The spiral tube increases the flow rate of the cold water in two aspects, so that the heat in the cold water is quickly transferred, and has the advantages of high iodine vapor crystallization efficiency and sufficient iodine vapor crystallization.

[0016] 2. The dividing strip divides the space of the cold water flow channel into two spiral spaces of different sizes, so that the cold water flows upward in a spiral in the two cold water flow channels of different sizes. Since the two cold water flow channels have different space sizes, the flow speeds of the cold water in the two cold water flow channels are also different, so that the cold water forms a flow velocity difference inside the spiral tube, so that the cold water in the two cold water flow channels quickly transfers heat, thereby increasing the heat absorption efficiency of the cold water inside the spiral tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the mounting platform of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the cooling cylinder of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the crystallization cylinder of the present invention;

[0021] Figure 5 For the present invention Figure 4 An enlarged schematic diagram of

[0022] Figure 6 It is a structural schematic diagram of the spiral tube of the present invention;

[0023] Figure 7 It is a structural schematic diagram of the partition plate of the present invention;

[0024] Figure 8 It is a disassembly schematic diagram of the cooling cylinder of the present invention;

[0025] Fig. 9 It is a schematic diagram of disassembling the cooling spiral tube of the present invention.

[0026] In the figure: mounting table 1, cold water tank 2, heating cylinder 3, sealing cover 4, cooling cylinder 5, reflux pipe 6, shunt pipe 7, delivery pipe 8, circulation pipe 9, check valve 10, elbow pipe 11, rubber tube 12, docking cylinder 13, crystallization cylinder 14, threaded cover 15, damping motor 16, water pump 17, driving bevel gear 18, sealed bearing 19, rotating rod 20, driven bevel gear 21, rotating disk 22, spiral tube 23, partition plate 24, sleeve cylinder 25, rubber sheet 26, threaded cylinder 27, storage frame 28, partition strip 29. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figure 1 -9, a multi-stage iodine crystallization device, comprising a mounting platform 1 and a damping motor 16 mounted at the bottom thereof, a cold water tank 2, a heating cylinder 3 and two cooling cylinders 5 are mounted on the top of the mounting platform 1, a sealing cover 4 is sleeved on the top of the heating cylinder 3 and the cold water tank 2, a water pump 17 is arranged inside the cold water tank 2, a shunt pipe 7 is arranged at the end of the water pump 17, two reflux pipes 6 and a delivery pipe 8 are respectively movably penetrated in the sealing cover 4, a threaded cylinder 27 is nested on the top of the cooling cylinder 5, a crystallization cylinder 14 is threadedly sleeved on the middle of the threaded cylinder 27, a threaded cover 15 is threadedly sleeved on the top of the crystallization cylinder 14, two sleeve cylinders 25 are embedded on the top of the threaded cover 15, four elbow pipes 11 are sleeved on the tops of the four sleeve cylinders 25, and the four elbows Three rubber tubes 12 are nested at one end of the tube 11, wherein a circulation tube 9 is nested at the end of one of the rubber tubes 12, and the end of another rubber tube 12 is nested with the top of the delivery tube 8. A docking tube 13 is nested at one end of the elbow tube 11, and a rubber sheet 26 is provided on the inner wall of the sleeve tube 25; a driving bevel gear 18 is fixed on the power output end of the top of the damping motor 16, a sealed bearing 19 is embedded at the bottom of the driving bevel gear 18, a rotating rod 20 is fixed through the middle of the sealed bearing 19, a driven bevel gear 21 is fixed at the bottom of the rotating rod 20, a rotating disk 22 is fixed at the top of the rotating rod 20, a spiral tube 23 is fixed through the rotating disk 22, and a partition plate 24 is fixed at the bottom of the threaded cover 15.

[0029] Preferably, the shunt pipe 7 is provided with three ports, one of which passes through the side of the cold water tank 2 and is connected to the water pump 17, and the other two ports of the shunt pipe 7 are respectively connected to the sides of the two cooling cylinders 5, the docking cylinder 13 is sleeved on the periphery of the sleeve cylinder 25, one end of the two return pipes 6 is respectively connected to the top of the side of the two cooling cylinders 5, and one end of the circulation pipe 9 is connected to the middle of one end of the delivery pipe 8;

[0030] During specific implementation, the bottom of the heated cylinder 3 is heated to heat the iodine raw material inside it, and the iodine evaporates to form iodine vapor, which is then transported into the interior of one of the crystallization cylinders 14 through a delivery pipe. The iodine vapor moves from top to bottom and then bypasses the partition plate 24 and moves from bottom to top into the elbow pipe 11, and then enters the interior of another crystallization cylinder 14 through a plurality of elbow pipes 11. Then the iodine vapor moves from top to bottom and then bypasses the partition plate 24 and moves from bottom to top into the elbow pipe 11, and then the iodine vapor enters the circulation pipe 9, and the circulation pipe 9 introduces the iodine vapor into the delivery pipe 8 for cooling and crystallization again. The interior of the cold water tank 2 is filled with cold water, and the water pump 17 transports the cold water into the interiors of the two cooling cylinders 5 through the shunt pipe 7, and then the cold water returns to the cooling cylinder 5 through two reflux pipes 6. The cold water absorbs the heat of the crystallization cylinder 14, so that the iodine vapor is crystallized inside the crystallization cylinder 14.

[0031] Preferably, the driving bevel gear 18 is meshed with the two driven bevel gears 21 at the same time, the diameter of the driving bevel gear 18 is greater than twice the diameter of the driven bevel gear 21, the center of the driven bevel gear 21 is located in the axial direction of the cooling cylinder 5, the spiral tube 23 is spirally wrapped around the periphery of the crystallization cylinder 14, the interior of the spiral tube 23 is hollow so that a spiral cold water flow channel is formed inside, and one end of the spiral tube 23 passes through the rotating disk 22;

[0032] During specific implementation, the damping motor 16 drives the active bevel gear 18 to rotate, and the active bevel gear 18 drives the two driven bevel gears 21 to rotate, so that the rotating rod 20, the driven bevel gear 21, the rotating disk 22 and the spiral tube 23 rotate synchronously and rapidly, and the spiral tube 23 rotates rapidly in the gap between the cooling cylinder 5 and the crystallization cylinder 14. The spiral tube 23 can quickly stir the cold water, so that the cold water can quickly conduct hot and cold convection, and the heat of the cold water can be quickly transferred directly, which greatly reduces the temperature difference of the cold water and greatly increases the efficiency of the cold water absorbing heat. At the same time, during the rotation of the spiral tube 23, the cold water flow channel formed inside the spiral tube 23 can quickly transport the cold water from bottom to top, and then the cold water is thrown to the inner wall of the cooling cylinder 5 through the top of the spiral tube 23, so that the cold water in the cold water flow channel flows rapidly, thereby increasing the convection rate of the cold water, so that the heat between the cold water is quickly transferred, and the cold water quickly absorbs the heat transferred from the crystallization cylinder 14.

[0033] Preferably, the partition plate 24 is located in the middle of the crystallization cylinder 14, the partition plate 24 divides the space inside the crystallization cylinder 14 into two, and the bottom plate of the partition plate 24 does not contact the bottom surface of the inner wall of the crystallization cylinder 14 with a certain gap, the top of the cooling cylinder 5 is provided with two docking ports, the positions of the docking ports correspond to the positions of the sleeve cylinder 25, and the partition plate 24 is located in the middle of the two sleeve cylinders 25;

[0034] During specific implementation, the partition plate 24 divides the space inside the crystallization cylinder 14, allowing the iodine vapor to flow from top to bottom and then bypass the partition plate 24, and then flow from bottom to top on the partition plate 24, so that the iodine vapor can fully flow inside the crystallization cylinder 14. The partition plate 24 rotates with the threaded cover 15, and the partition plate 24 rotates to scrape off the iodine crystals on the inner wall of the crystallization cylinder 14.

[0035] Preferably, the shunt pipe 7 is located below the rotating disk 22, the bottom plate of the crystallization cylinder 14 is sleeved inside the cooling cylinder 5, a plurality of slits are opened in the middle of the rubber sheet 26, the middle of the rubber sheet 26 is blown by iodine vapor, so that the iodine vapor passes through the middle of the rubber sheet 26, and the rubber sheet 26 can prevent the iodine vapor from leaking when stationary, and prevent the iodine vapor from leaking from the inside of the crystallization cylinder 14.

[0036] Preferably, a storage frame 28 is nested at the bottom of the spiral tube 23, and the bottom of the spiral tube 23 passes through one end of the storage frame 28, while the other end of the storage frame 28 remains inclined. The storage frame 28 can collect cold water, collect a large amount of cold water into the spiral tube 23, increase the amount of cold water entering the spiral tube 23, and further increase the flow rate of cold water inside the spiral tube 23, so that the cold water can quickly complete heat conduction, and then the cold water can quickly absorb heat.

[0037] Preferably, the top of the storage frame 28 is fixed to the top of the rotating disk 22, and a partition bar 29 is provided in the cold water flow channel inside the spiral tube 23;

[0038] During specific implementation, the dividing strip 29 divides the space of the cold water flow channel into two spiral spaces of different sizes, so that the cold water flows upward in a spiral in the two cold water flow channels of different sizes. Since the two cold water flow channels have different space sizes, the flow speeds of the cold water in the two cold water flow channels are also different, so that the cold water forms a flow velocity difference inside the spiral tube 23, so that the cold water in the two cold water flow channels quickly transfers heat, thereby increasing the heat absorption efficiency of the cold water inside the spiral tube 23.

[0039] In the present invention, when in use, first, coolant is poured into the interior of the cold water tank 2, and the cold water enters the interior of the cooling cylinder 5, the water pump 17 and the shunt pipe 7, and the cold water fills the cold water tank 2, and the water pump 17 delivers the cold water into the interior of the cooling cylinder 5 through the shunt pipe 7, and then the cold water returns to the interior of the cooling cylinder 5 through the reflux pipe 6, and the damping motor 16 drives the active bevel gear 18, and the active bevel gear 18 drives the two driven bevel gears 21 to rotate, so that the spiral tube 23 continuously stirs the cold water, and then the crystallization cylinder 14 is inserted into the middle of the threaded cylinder 27, and the crystallization cylinder 14 is installed in the interior of the cooling cylinder 5, Then insert four elbow pipes 11 into the middle of the sleeve tube 25, and then sleeve the ends of two of the elbow pipes 11 on the rubber tube 12, and then put the iodine raw material into the heated tube 3, and then install the sealing cover 4 on the top of the heated tube 3, and then sleeve the tops of the delivery pipe 8 and the circulation pipe 9 with the two rubber tubes 12 respectively, and then heat the heated tube 3 to evaporate the iodine to form iodine vapor which enters the delivery pipe 8, and the iodine vapor is cooled inside the crystallization tube 14. After waiting for the iodine evaporation and crystallization to be completed, the crystallization tube 14 is taken out from the threaded tube 27, and then the iodine is taken out from the crystallization tube 14.

Claims

1. A multi-stage iodine crystallization device, comprising a mounting platform (1) and a damping motor (16) mounted at the bottom thereof, a cold water tank (2), a heating cylinder (3) and two cooling cylinders (5) mounted on the top of the mounting platform (1), a sealing cover (4) being provided on the top of the heating cylinder (3) and the cold water tank (2), characterized in that: The cold water tank (2) is provided with a water pump (17) inside, a shunt pipe (7) is provided at the end of the water pump (17), two return pipes (6) and a delivery pipe (8) are movably penetrated in the sealing cover (4), a threaded cylinder (27) is nested on the top of the cooling cylinder (5), a crystallization cylinder (14) is threadedly sleeved on the middle of the threaded cylinder (27), a threaded cover (15) is threadedly sleeved on the top of the crystallization cylinder (14), two sleeve cylinders (25) are embedded on the top of the threaded cover (15), four elbow pipes (11) are sleeved on the top of the four sleeve cylinders (25), three rubber pipes (12) are nested on one end of the four elbow pipes (11), a circulation pipe (9) is nested on the end of one of the rubber pipes (12), the end of another rubber pipe (12) is nested with the top of the delivery pipe (8), a docking cylinder (13) is nested on one end of the elbow pipe (11), and a rubber sheet (26) is provided on the inner wall of the sleeve cylinder (25); A driving bevel gear (18) is fixed to the power output end at the top of the damping motor (16); a sealed bearing (19) is embedded in the bottom of the driving bevel gear (18); a rotating rod (20) is fixed through the middle of the sealed bearing (19); a driven bevel gear (21) is fixed to the bottom of the rotating rod (20); a rotating disk (22) is fixed to the top of the rotating rod (20); a spiral tube (23) is fixed through the rotating disk (22); and a partition plate (24) is fixed to the bottom of the threaded cover (15); The shunt pipe (7) is provided with three ports, one of the ports of the shunt pipe (7) passes through the side of the cold water tank (2) and is connected to the water pump (17), and the other two ports of the shunt pipe (7) are respectively connected to the sides of the two cooling cylinders (5); The docking tube (13) is sleeved on the outer periphery of the sleeve tube (25), one end of the two return pipes (6) is respectively connected to the top of the side of the two cooling tubes (5), and one end of the circulation tube (9) is connected to the middle of one end of the delivery tube (8); The spiral tube (23) is spirally wound around the periphery of the crystallization cylinder (14); the interior of the spiral tube (23) is hollow so that a spiral cold water flow channel is formed inside; one end of the spiral tube (23) passes through the rotating disk (22); The partition plate (24) is located in the middle of the crystallization cylinder (14), the partition plate (24) divides the space inside the crystallization cylinder (14) into two, and the bottom plate of the partition plate (24) does not contact the bottom surface of the inner wall of the crystallization cylinder (14) and there is a certain gap.

2. The multi-stage iodine crystallization device according to claim 1, characterized in that: The driving bevel gear (18) is meshed with the two driven bevel gears (21) at the same time; the diameter of the driving bevel gear (18) is greater than twice the diameter of the driven bevel gears (21); and the center of the driven bevel gears (21) is located in the axial direction of the cooling cylinder (5).

3. The multi-stage iodine crystallization device according to claim 1, characterized in that: The diverter pipe (7) is located below the rotating disk (22), the bottom plate of the crystallization cylinder (14) is sleeved inside the cooling cylinder (5), and a plurality of slits are provided in the middle of the rubber sheet (26).

4. The multi-stage iodine crystallization device according to claim 1, characterized in that: The top of the cooling cylinder (5) is provided with two docking ports, the positions of which correspond to the positions of the sleeve cylinder (25), and the partition plate (24) is located between the two sleeve cylinders (25).

5. The multi-stage iodine crystallization device according to claim 1, characterized in that: A storage frame (28) is nested at the bottom of the spiral tube (23), and the bottom of the spiral tube (23) passes through the storage frame (28). A partition bar (29) is provided in the cold water flow channel inside the spiral tube (23), and the partition bar (29) divides the space of the cold water flow channel into two spiral spaces of different sizes.

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