Indium distillation and purification device

Abstract

The utility model discloses an indium distillation purification device which comprises a distillation still and a vacuum pump, the vacuum pump is connected to the distillation still through an air pipe, the vacuum pump is provided with a negative pressure meter and a first ball valve switch, the distillation still is provided with a heating assembly and an indium metal recovery plate, a cavity penetrating through the two ends is formed in the indium metal recovery plate, and the first ball valve switch is arranged in the cavity. The indium metal recovery plate penetrates through the distillation kettle and is rotatably connected to the distillation kettle, the left end and the right end of the indium metal recovery plate are respectively connected with a connecting sleeve, the connecting sleeves are connected to the distillation kettle, and the connecting sleeves are connected with a water pipe. The indium metal recovery plate can be overturned to change the surface, so that indium steam accumulated on the indium metal recovery plate firstly is not influenced by sequentially sublimated indium steam accumulation and is fully condensed into solid, and the surface which is originally upward is also overturned to the lower surface to continuously accumulate and condense the indium steam, so that the purification efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of indium distillation and purification, in particular to an indium distillation and purification device. Background Art

[0002] Indium metal is a precious metal with high price and very scarce content in nature. It is estimated that only 15,000 tons of indium can be obtained worldwide, and the utilization rate of ITO target during sputtering is low, generally only 30% to 40%. ITO target is an indium-tin composite oxide ceramic material, which is widely used in flat panel display devices, solar cells, anti-fog and anti-frost glass of aircraft and high-end automobiles, and is a very important optoelectronic material. The raw materials of ITO target are tin oxide and indium oxide. Indium oxide is prepared from indium metal. Therefore, it is very necessary to recycle and purify the metal indium in ITO waste target. Indium metal can be heated and sublimated under vacuum conditions, while tin metal cannot. The melting point of indium metal is 156.61°C and the melting point of tin metal is 231.89°C. Therefore, the heating temperature should be set below the melting point of indium metal, so that indium metal sublimates from indium-tin alloy, while tin metal remains in solid state. The prior art discloses a method of: sublimating indium from indium-tin alloy. A purification device for purifying indium from TO waste targets, publication number: CN212357345U, includes a vacuum furnace providing a purification reaction site, the vacuum furnace has a warehouse door, an N2 gas cylinder and a vacuum pump are respectively connected to the vacuum furnace through a pipeline with a ball valve switch, a heating device for heating an alloy is arranged in the vacuum furnace, an indium metal recovery target is arranged on the top of the vacuum furnace, and also includes a cooling device for cooling the indium metal recovery target and a vacuum gauge is arranged on the pipeline connecting the vacuum pump and the vacuum furnace, which can recover and purify indium, but the existing technology has the problem that when the sublimated indium vapor accumulates on the indium metal recovery target and solidifies, the temperature of the contact surface between the indium metal recovery target and the indium vapor continues to rise due to the continuous accumulation of the continuously sublimated indium vapor, the accumulated indium vapor fails to condense into a solid in time, and the indium vapor continues to accumulate, and is easy to drip under the action of gravity. Utility Model Content

[0003] In view of the above-mentioned prior art, the utility model provides an indium distillation and purification device, which can mainly realize that after the indium vapor accumulates on the indium metal recovery plate, the indium metal recovery plate can be flipped to change the surface, so that the indium vapor previously accumulated on the indium metal recovery plate is not affected by the accumulation of the indium vapor that is gradually sublimated, and is fully condensed into a solid, and the surface originally facing upward is also flipped to the bottom to continue to accumulate and condense the indium vapor, thereby improving the purification efficiency.

[0004] To achieve the above purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0005] An indium distillation and purification device comprises a distillation kettle and a vacuum pump, wherein the vacuum pump is connected to the distillation kettle through an air pipe, the vacuum pump is provided with a negative pressure gauge and a first ball valve switch, the distillation kettle is provided with a heating component and an indium metal recovery plate, the indium metal recovery plate is provided with cavities passing through both ends, the indium metal recovery plate passes through and is rotatably connected to the distillation kettle, the left and right ends of the indium metal recovery plate are respectively connected with connecting sleeves, the connecting sleeves are connected to the distillation kettle, and the connecting sleeves are connected to a water pipe.

[0006] Furthermore, the indium metal recovery plate is provided with a first bevel gear, the distillation kettle is rotatably connected with a first rotating shaft and a second rotating shaft, one end of the first rotating shaft is provided with a second bevel gear that cooperates with the first bevel gear, and the other end is provided with a third bevel gear, one end of the second rotating shaft is provided with a fourth bevel gear that cooperates with the third bevel gear, and the other end is connected to a driving device.

[0007] Furthermore, the driving device includes a box body, in which an impeller is rotatably connected, a water inlet pipe and a water outlet pipe are respectively provided on the left and right sides of the box body, and the impeller is provided with a main shaft, which is connected to the second rotating shaft.

[0008] Furthermore, a water distribution pipe is provided at the bottom of the box body, and the water distribution pipe is provided with a second ball valve switch.

[0009] Furthermore, the box body is provided with a first baffle and a second baffle.

[0010] Furthermore, the connecting sleeve includes a swivel and a fixed body, the swivel is rotatably connected to the fixed body, a hoop is provided on the outer periphery of the swivel, and a first sealing ring is provided inside.

[0011] Furthermore, a second sealing ring is provided in the rotating body.

[0012] Furthermore, the rotating body is provided with a protrusion, and the fixed body is provided with a groove matching with the protrusion.

[0013] Furthermore, the fixed body is provided with a connecting ear, and the connecting ear is connected to the distillation kettle.

[0014] Furthermore, the water outlet pipe is connected to a water tank.

[0015] The beneficial effects of the utility model are as follows: a vacuum is drawn through an indium metal sublimation environment by a vacuum pump, and indium vapor is solidified through an indium metal recovery plate. When a large amount of indium vapor is accumulated downward on the indium metal recovery plate, the indium metal recovery plate is flipped over so that the indium metal recovery plate originally facing downward is turned upward, so that the indium vapor previously accumulated on the indium metal recovery plate is fully condensed into a solid. At this time, the other side of the indium metal recovery plate has been flipped over to continue to accumulate indium vapor downward. This cycle is repeated so that when indium vapor accumulates on the indium metal recovery plate, the indium metal recovery plate can be flipped over to change the side for accumulation, so that the indium vapor is fully solidified on the indium metal recovery plate, thereby improving the purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic plan view of an indium distillation and purification device in an embodiment of the present application;

[0017] Figure 2 It is a partial plan view of an indium distillation and purification device in an embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the structure of the driving device in the embodiment of the present application;

[0019] Figure 4 This is a cross-sectional schematic diagram of a connecting sleeve in an embodiment of the present application;

[0020] Figure 5 This is a schematic diagram of an indium metal recovery plate in an embodiment of the present application;

[0021] Figure 6 This is a schematic cross-sectional view of an indium metal recovery plate in an embodiment of the present application;

[0022] Description of Figure Numbers:

[0023] 1 distillation kettle, 2 vacuum pump, 3 air pipe, 4 negative pressure gauge, 5 first ball valve switch, 6 heating component, 7 indium metal recovery plate, 71 cavity, 8 connecting sleeve, 9 first water pipe, 901 second water pipe, 10 first bevel gear, 11 first rotating shaft, 12 second rotating shaft, 13 second bevel gear, 14 third bevel gear, 15 fourth bevel gear, 16 driving device, 17 housing, 18 impeller, 19 water inlet pipe, 20 water outlet pipe, 21 main shaft, 22 water distribution pipe, 23 second ball valve switch, 24 first baffle, 25 second baffle, 26 rotating body, 27 fixed body, 28 ferrule, 29 first sealing ring, 30 second sealing ring, 31 protrusion, 32 connecting ear, 33 water tank, 701 water inlet hole, 702 water outlet hole, 703 horizontal hole, 704 vertical hole. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" is involved, which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0025] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0026] Example 1

[0027] See attached Figure 1-6The present application provides an indium distillation and purification device, comprising a distillation kettle 1 and a vacuum pump 2, wherein the distillation kettle 1 is provided with a warehouse door and a vacuum chamber, wherein the vacuum pump 2 is connected to the distillation kettle 1 through an air pipe 3 and communicates with the vacuum chamber, wherein the vacuum pump 2 is provided with a negative pressure gauge 4 and a first ball valve switch 5, wherein the vacuum pump 2 is used to evacuate the vacuum chamber, wherein the negative pressure gauge 4 is used to observe the negative pressure value in the distillation kettle 1, wherein the distillation kettle 1 is provided with a heating component 6 and an indium metal recovery plate 7, wherein water inlet holes 701 and water outlet holes 702 are respectively provided at both ends of the indium metal recovery plate, wherein the water inlet holes 701 and the water outlet holes 702 are respectively communicated with horizontal holes 703, wherein the horizontal holes 703 are provided with vertical holes 703 through which the vertical holes 703 are provided. 4, the heating component 6 is used to heat the temperature required for the sublimation of indium metal, the indium metal recovery plate 7 is used to accumulate and condense indium vapor, so that the indium vapor solidifies on the indium metal recovery plate 7, and realizes the function of indium distillation and purification, the indium metal recovery plate 7 is provided with a cavity 71 running through both ends, the indium metal recovery plate 7 runs through and is rotatably connected to the distillation kettle 1, the left and right ends of the indium metal recovery plate 7 are respectively connected with a connecting sleeve 8, the connecting sleeve 8 is fixedly connected to the distillation kettle 1, the connecting sleeve 8 on the left side of the distillation kettle 1 is connected to a first water pipe 9, and the connecting sleeve 8 on the right side is connected to a second water pipe 901, the first water pipe 9 is connected to tap water or a cooling water tank, etc., for providing the indium metal The cooling water of the indium metal recovery plate 7 is used for cooling the indium metal recovery plate. The cooling water flowing through the indium metal recovery plate is discharged from the second water pipe 901. When working, the first water pipe 9 at the water inlet end of the indium metal recovery plate 7 is first connected to the tap water or the cooling water tank, but the faucet is not turned on first. The door is opened, and the indium tin alloy is placed in the distillation kettle 1. The door is closed, the first ball valve switch 5 is opened, and then the vacuum pump 2 is opened to start vacuuming. The negative pressure value of the negative pressure gauge 4 is observed. After the negative pressure value reaches the preset value, the first ball valve switch 5 is closed, the vacuum pump 2 is closed, and heating is started. After reaching the preset temperature, it is kept warm for a fixed time to allow the indium in the indium tin alloy to fully sublime. At the same time, the tap water or the cooling water tank is opened. The faucet allows cooling water to flow through and cool the indium metal recovery plate 7, so that the indium metal recovery plate 7 maintains a low temperature, and the sublimated indium vapor accumulates on the indium metal recovery plate 7 to achieve solidification separation, and the indium metal recovery plate 7 is flipped over to change the surface, so that the indium metal recovery plate 7 originally facing downward is turned to upward, so that the indium vapor previously accumulated on the indium metal recovery plate 7 is not affected by the accumulation of sublimated indium vapor, and is fully condensed into a solid, and the surface originally facing upward is also flipped to the downward side to continue to accumulate and condense the indium vapor, and the cycle is repeated to achieve separation and purification of indium metal. The utility model can flip the indium metal recovery plate 7 to change the surface to accumulate and solidify the indium vapor, thereby improving the purification efficiency.

[0028] Specifically, the indium metal recovery plate 7 is fixedly connected to the first bevel gear 10, and the distillation kettle 1 is rotatably connected to the first rotating shaft 11 and the second rotating shaft 12. One end of the first rotating shaft 11 is fixedly connected to the second bevel gear 13 that cooperates with the first bevel gear 10, and the other end is fixedly connected to the third bevel gear 14. One end of the second rotating shaft 12 is fixedly connected to the fourth bevel gear 15 that cooperates with the third bevel gear 14, and the other end is connected to the driving device 16. The driving device 16 can be a motor, a cylinder or other driving mechanism. When working, the second rotating shaft 12 is driven to rotate by the torque output by the driving device 16, and the first rotating shaft 11 is driven to rotate by the cooperation of the fourth bevel gear 15 and the third bevel gear 14. The indium metal recovery plate 7 is flipped by the cooperation of the second bevel gear 13 and the first bevel gear 10. Through gear transmission, the transmission is stable, the efficiency is high, and the maintenance is convenient.

[0029] Example 2

[0030] See attached Figure 1-6 The difference between this embodiment and embodiment 1 is that the driving device 16 includes a box body 17, in which an impeller 18 is rotatably connected, and a water inlet pipe 19 and a water outlet pipe 20 are respectively provided on the left and right sides of the box body 17, and the water inlet pipe 19 is connected to the second water pipe 901, and the impeller 18 is provided with a main shaft 21, and the main shaft 21 is fixedly connected to the impeller 18, and the main shaft 21 is fixedly connected to the second rotating shaft 12, and the water inlet pipe 19 is connected to the water outlet end of the indium metal recovery plate 7. When working, the cooling water flowing out of the indium metal recovery plate 7 flows through the impeller 18 from the water inlet pipe 19, drives the impeller 18 to rotate, and then drives the main shaft 21 to rotate, and then drives the second rotating shaft 12 to rotate, and finally realizes the flipping of the indium metal recovery plate 7. This embodiment uses cooling water to realize the flipping of the indium metal recovery plate 7, which saves energy, is economical and practical, and has a clever structure and is easy to promote and apply.

[0031] Specifically, a water distribution pipe 22 is provided at the bottom of the box body 17, and the water distribution pipe 22 is provided with a second ball valve switch 23. The two ends of the water distribution pipe 22 are connected to the water inlet side and the water outlet side of the impeller 18. The cooling water flowing through the impeller 18 is diverted by the water distribution pipe 22, and the amount of water flowing through the impeller 18 is adjusted by adjusting the opening of the second ball valve switch 23, thereby adjusting the flipping speed of the indium metal recovery plate 7. The box body 17 is provided with a first baffle 24 and a second baffle 25. The first baffle 24 and the second baffle 25 play a guiding role for the cooling water. The structure is simple and economical, and it is easy to promote.

[0032] Specifically, the connecting sleeve 8 includes a swivel 26 and a fixed body 27. The swivel 26 is rotatably connected to the fixed body 27. A hoop 28 is provided on the outer periphery of the swivel 26, and a first sealing ring 29 is provided inside. When in use, the connecting sleeve 8 is sleeved on both ends of the indium metal recovery plate 7, and the hoop 28 is tightened to lock the indium metal recovery plate 7. A second sealing ring 30 is provided inside the swivel 26. The first sealing ring 29 and the second sealing ring 30 prevent water leakage, and the structure is simple.

[0033] Specifically, the rotating body 26 is provided with a protrusion 31, and the fixed body 27 is provided with a groove that cooperates with the protrusion 31. Through the cooperation between the protrusion 31 and the groove, the rotating body 26 can rotate on the fixed body 27 without falling off.

[0034] Specifically, the fixed body 27 is provided with a connecting ear 32 , and the connecting ear 32 is fixedly connected to the fixed body 27 , and the connecting ear 32 is connected to the distillation kettle 1 , and the connecting sleeve 8 is fixedly connected to the distillation kettle 1 through the connecting ear 32 .

[0035] Specifically, the water outlet pipe 20 is connected to a water tank 33, and the water tank 33 is used to collect cooling water.

[0036] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. The protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An indium distillation and purification device, characterized in that: It includes a distillation kettle and a vacuum pump, which is connected to the distillation kettle through an air pipe, and is provided with a negative pressure gauge and a first ball valve switch. The distillation kettle is provided with a heating component and an indium metal recovery plate, and the indium metal recovery plate is provided with cavities passing through both ends, and the indium metal recovery plate passes through and is rotatably connected to the distillation kettle, and the left and right ends of the indium metal recovery plate are respectively connected with connecting sleeves, and the connecting sleeves are connected to the distillation kettle, and the connecting sleeves are connected to a water pipe.

2. An indium distillation and purification device according to claim 1, characterized in that: The indium metal recovery plate is provided with a first bevel gear, and the distillation kettle is rotatably connected with a first rotating shaft and a second rotating shaft, one end of the first rotating shaft is provided with a second bevel gear that cooperates with the first bevel gear, and the other end is provided with a third bevel gear, one end of the second rotating shaft is provided with a fourth bevel gear that cooperates with the third bevel gear, and the other end is connected with a driving device.

3. An indium distillation and purification device according to claim 2, characterized in that: The driving device comprises a box body, an impeller is rotatably connected in the box body, a water inlet pipe and a water outlet pipe are respectively arranged on the left and right sides of the box body, the impeller is provided with a main shaft, and the main shaft is connected to the second rotating shaft.

4. An indium distillation and purification device according to claim 3, characterized in that: A water distribution pipe is provided at the bottom of the box body, and a second ball valve switch is provided on the water distribution pipe.

5. An indium distillation and purification device according to claim 3 or 4, characterized in that: The box body is provided with a first blocking piece and a second blocking piece.

6. An indium distillation and purification device according to claim 1, characterized in that: The connecting sleeve comprises a rotating body and a fixed body. The rotating body is rotatably connected to the fixed body. A hoop is arranged on the outer periphery of the rotating body and a first sealing ring is arranged inside the rotating body.

7. An indium distillation and purification device according to claim 6, characterized in that: A second sealing ring is arranged in the rotating body.

8. An indium distillation and purification device according to claim 6, characterized in that: The rotating body is provided with a protrusion, and the fixed body is provided with a groove matched with the protrusion.

9. An indium distillation and purification device according to claim 6, characterized in that: The fixed body is provided with a connecting ear, and the connecting ear is connected to the distillation kettle.

10. An indium distillation and purification device according to claim 3, characterized in that: The water outlet pipe is connected with a water tank.

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