Rare and noble light metal vacuum distillation equipment manufactured based on electronic materials

Abstract

The invention provides rare and noble light metal vacuum distillation equipment based on electronic material manufacturing, and relates to the technical field of electronic material manufacturing, the rare and noble light metal vacuum distillation equipment comprises a support, the top of the support is fixedly connected with a distillation kettle shell, and one end of the distillation kettle shell is covered with a kettle cover; a pouring unit is arranged in the distillation kettle shell and comprises a distillation component, a pouring guide component and a door opening component; the distillation part is used for heating and distilling raw materials, and the pouring guide part is used for driving the distillation part to horizontally move out of the distillation kettle shell; according to the invention, through cooperative work of the distillation component, the dumping guide component and the door opening component in the dumping unit and driving of an electric cylinder, the actions of opening the kettle cover, horizontally moving the distillation component out of the shell of the distillation kettle and overturning and dumping can be automatically completed, and the door opening component enables the kettle cover to be synchronously opened along with the movement of the distillation component. And high-purity lithium is provided for manufacturing of special electronic materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic material manufacturing, and in particular to a rare and precious light metal vacuum distillation equipment based on electronic material manufacturing. BACKGROUND

[0002] In the field of electronic material manufacturing, lithium is a key rare and precious light metal. As an important material for the manufacturing of electronic special materials, lithium occupies an irreplaceable position due to its unique physical and chemical properties. Lithium has extremely high electrochemical activity and excellent electrical conductivity, which makes it a key raw material for core electronic materials such as lithium-ion batteries, semiconductor devices, and precision electronic components. It plays a crucial role in the fields of smartphones, electric vehicles, energy storage equipment, and integrated circuits, and has extremely high application value and strategic significance. However, due to the complex source of raw materials and the influence of extraction process, lithium often contains various impurities such as sodium, potassium, and magnesium metal impurities. The presence of these impurities can seriously affect the performance of lithium in electronic materials. Therefore, in order to meet the stringent requirements of electronic material manufacturing for high-purity lithium, effective purification treatment of lithium must be carried out.

[0003] High-purity purification of rare and precious light metals (such as lithium) is a key link to ensure the performance of electronic devices. Vacuum distillation, as an efficient purification method, has been widely used in the purification process of lithium. This is because the boiling point of lithium is relatively low (about 1342℃ at standard atmospheric pressure), while the boiling points of most impurity metals contained in lithium (such as the boiling point of sodium is 883℃, the boiling point of potassium is 774℃, and the boiling point of magnesium is 1090℃) are lower than that of lithium. In a vacuum environment, the pressure is reduced, and the boiling point of the substance will also decrease accordingly. This not only reduces the energy consumption of the distillation process, but also reduces the reaction between lithium and oxygen, nitrogen and other gases in the air, avoiding secondary pollution. By controlling the process parameters such as temperature and pressure of vacuum distillation, lithium and impurities can be evaporated and condensed according to their different boiling points, thereby realizing efficient purification of lithium and obtaining high-purity lithium products that meet the requirements of electronic material manufacturing.

[0004] The distillation components (such as crucibles) of existing equipment are mostly arranged in the distillation kettle. After distillation is completed, the crucible needs to be manually opened and removed for unloading. Due to the high temperature in the distillation kettle and the possible residual vacuum environment, manual operation is not only inefficient, but also has safety risks such as high-temperature scalding and vacuum pressure difference impact. In addition, the condensed materials after distillation and separation need to be manually disassembled and collected for cleaning after the machine is stopped, which is cumbersome and inconvenient. Therefore, it is necessary to provide a rare and precious light metal vacuum distillation equipment based on electronic material manufacturing to solve the above technical problems. SUMMARY

[0005] To solve the above technical problems, the present application provides a rare and precious light metal vacuum distillation equipment based on electronic material manufacturing.

[0006] This invention provides a vacuum distillation device for rare and precious light metals based on electronic materials, comprising a support frame, a distillation vessel shell fixedly connected to the top of the support frame, and a lid covering one end of the distillation vessel shell; a tilting unit is provided inside the distillation vessel shell, the tilting unit comprising a distillation component, a tilting guide component, and a door opening component; the distillation component is used to heat and distill the raw material, the tilting guide component is used to drive the distillation component to move horizontally to the outside of the distillation vessel shell, and then drive the distillation component to perform a tilting action, the door opening component is used to open the lid during the horizontal movement of the distillation component.

[0007] Preferably, the distillation component includes a heat insulation cylinder, a fixing ring is fixedly sleeved on the outer side of the heat insulation cylinder, a crucible is fixedly connected to the inner side of the heat insulation cylinder, an installation gap is provided between the crucible and the heat insulation cylinder, an electric heating tube is provided in the installation gap, the electric heating tube is fixedly sleeved on the outer side of the crucible, a fixing seat is fixedly connected to the outer wall of the fixing ring, a first fixing shaft and a second fixing shaft are fixedly connected transversely through the fixing seat, and both ends of the first fixing shaft and the second fixing shaft are rotatably connected to a removal wheel.

[0008] Preferably, the tilting guide component includes an electric cylinder, which is fixedly installed on the outer side of the other end of the distillation vessel shell. The other end of the distillation vessel shell has a through-hole extending horizontally. The telescopic end of the electric cylinder passes through the through-hole and extends into the distillation vessel shell, where it is fixedly connected to a sealing block. One end of the sealing block is fixedly connected to a transverse moving frame. The bottom of the transverse moving frame is fixedly connected to a U-shaped seat, which is rotatably sleeved on the outer side of the first fixed shaft. The inner side of the distillation vessel shell is fixedly connected to a guide frame, which has a horizontal guide groove, an arc-shaped guide groove, and a straight guide groove extending through it in sequence. One end of the horizontal guide groove is connected to one end of the arc-shaped guide groove, and the other end of the arc-shaped guide groove is connected to the top of the straight guide groove.

[0009] Preferably, the door opening component includes an L-shaped rod, one end of which is fixedly connected to the inner wall of the vessel lid, and the other end of which is rotatably connected to a door opening guide wheel. A guide strip is fixedly connected to one side of the transverse frame. A straight guide hole and an oblique guide hole are longitudinally opened on the guide strip. One end of the straight guide hole is connected to one end of the oblique guide hole. A pin is fixedly connected to the outer side of the vessel lid. One end of the outer side of the distillation vessel shell is rotatably connected to the pin. The door opening guide wheel is rolled within the oblique guide hole. Both the straight guide hole and the oblique guide hole are adapted to the door opening guide wheel.

[0010] Preferably, a condensing unit is installed on the distillation vessel shell. The condensing unit includes a suction pipe, one end of which passes through the distillation vessel shell and extends into its interior, connecting to a suction hood. The suction hood is positioned directly above the crucible. The other end of the suction pipe is connected to a heat exchange tube. An outer shell is fixedly fitted around the outside of the heat exchange tube. A condensing tube is installed inside the outer shell and is fixedly fitted around the outside of the heat exchange tube. Both the inlet and outlet ends of the condensing tube pass through the outer shell and extend to the outside. The bottom end of the heat exchange tube is connected to a collection box. An inlet pipe is fixedly connected to the top of the collection box and communicates with its interior. A vacuum diaphragm pump is fixedly installed on the outer wall of the distillation vessel shell. One end of the inlet pipe is connected to the inlet end of the vacuum diaphragm pump, and the outlet end of the vacuum diaphragm pump is connected to an exhaust pipe. One end of the exhaust pipe passes through the lower part of the distillation vessel shell and communicates with its interior.

[0011] Preferably, the condensation unit is equipped with a discharge unit, which includes a transmission component and a material discharge component.

[0012] Preferably, the transmission component includes a transmission bar, one end of which is fixedly connected to the bottom end of a pin. A movable elongated hole is longitudinally opened through the transmission bar. A push-pull rod is slidably connected transversely through the other end of the collection box. One end of the push-pull rod extends into the collection box and is fixedly connected to the side wall of the first sealing plate. A transmission wheel is rotatably connected to the top of the other end of the push-pull rod. The transmission wheel is rolled within the movable elongated hole, and the movable elongated hole is adapted to the transmission wheel.

[0013] Preferably, the unloading component includes a material guiding channel, which is fixedly connected to the lower part of one end of the collection box. One end of the collection box is open, and two horizontal fixing rods are symmetrically arranged inside the collection box. One end of the two horizontal fixing rods is fixedly connected to a first sealing plate, and the other end of the two horizontal fixing rods is fixedly connected to a second sealing plate. The first sealing plate and the second sealing plate are both slidably and sealed inside the collection box.

[0014] Preferably, the other end of the distillation vessel shell is fixedly connected to several flange mounting pipes communicating with its interior. Each flange mounting pipe is equipped with a valve. A vacuum pump is fixedly mounted on the bracket. The air inlet of the vacuum pump is connected to one of the flange mounting pipes through a pipe.

[0015] Preferably, the removal wheel is rotatably disposed within a horizontal guide groove, and the horizontal guide groove, the arc-shaped guide groove, and the straight guide groove are all adapted to the removal wheel.

[0016] Compared with related technologies, the vacuum distillation equipment for rare and precious light metals based on electronic materials provided by this invention has the following advantages:

[0017] 1. In this invention, the distillation component, the tilting guide component, and the door opening component work together in the tilting unit. Driven by an electric cylinder, the lid can be opened automatically, the distillation component can be moved horizontally out of the distillation vessel shell, and the tilting action can be completed. The door opening component uses the oblique guide holes and straight guide holes of the guide strip to cooperate with the door opening guide wheel, so that the lid opens synchronously with the movement of the distillation component, eliminating the need for manual opening and improving safety. The tilting guide component guides the removal wheel through the horizontal guide groove, arc guide groove, and straight guide groove of the guide frame, which drives the distillation component to accurately complete the removal and tilting, reducing the risk of manual contact with high-temperature components. The distillation component is connected to the removal wheel through the first fixed shaft and the second fixed shaft of the fixed seat, and with the groove structure of the guide frame, the horizontal movement and tilting trajectory are ensured to be stable.

[0018] 2. In the condensation unit, the suction hood is located directly above the crucible, which can accurately capture the evaporated metal vapor and guide it into the heat exchange tube through the suction pipe. The condenser tube inside the outer shell exchanges heat quickly through cold water circulation, so that the vapor is efficiently condensed into liquid in the heat exchange tube, ensuring the separation of low-boiling metal from raw materials. The collection box collects the condensate in a concentrated manner, improving the purification efficiency. The vacuum diaphragm pump forms a circulating airflow through the inlet and outlet pipes.

[0019] 3. The transmission components of the discharge unit cooperate with the material discharge components. The pin of the kettle lid drives the transmission bar to rotate. The movable elongated hole drives the push-pull rod through the transmission wheel, so that the first sealing plate and the second sealing plate slide in the collection box, and the condensate is automatically discharged through the material guide channel. No manual disassembly and cleaning is required. It is linked with the opening and closing action of the kettle lid, and no additional power source is required, making cleaning more convenient. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of the vacuum distillation equipment for rare and precious light metals based on electronic materials provided for this invention;

[0021] Figure 2 This is another perspective view of the vacuum distillation equipment for rare and precious light metals based on electronic materials in this invention.

[0022] Figure 3 This is an overall cross-sectional view of the vacuum distillation equipment for rare and precious light metals based on electronic materials in this invention.

[0023] Figure 4 This is a schematic diagram of the structure of the fixing seat in this invention;

[0024] Figure 5 This is a schematic diagram of the structure of the distillation component in this invention;

[0025] Figure 6 This is a schematic diagram of the tilting unit in this invention;

[0026] Figure 7This is a partial cross-sectional view of the vacuum distillation apparatus for rare and precious light metals based on electronic materials in this invention.

[0027] Figure 8 This is a schematic diagram of the structure of the guide strip in this invention;

[0028] Figure 9 This is a schematic diagram of the structure of the condensation unit in this invention;

[0029] Figure 10 This is a cross-sectional view of the condensation unit in this invention;

[0030] Figure 11 This is a schematic diagram of the structure of the discharge unit in this invention.

[0031] The diagram labels are as follows: 1. Support; 2. Distillation vessel shell; 3. Vessel lid; 4. Tilting unit; 41. Distillation component; 411. Fixing ring; 412. Insulation cylinder; 413. Crucible; 414. Electric heating element; 415. Fixing base; 416. First fixing shaft; 417. Removal wheel; 418. Second fixing shaft; 42. Tilting guide component; 421. Electric cylinder; 422. Horizontal movement frame; 423. Guide frame; 424. Horizontal guide groove; 425. Arc-shaped guide groove; 426. Straight guide groove; 427. U-shaped seat; 428. Sealing block; 429. Through-hole; 43. Door opening component; 431. L-shaped rod; 432. Guide strip; 433. 434. Straight guide elongated hole; 435. Door opening guide wheel; 436. Pin shaft; 5. Condensation unit; 501. Suction pipe; 502. Suction hood; 503. Outer casing; 504. Condensation pipe; 505. Heat exchange pipe; 506. Collection box; 507. Inlet pipe; 508. Vacuum diaphragm pump; 509. Exhaust pipe; 6. Discharge unit; 61. Transmission component; 611. Transmission bar; 612. Movable elongated hole; 613. Push-pull rod; 614. Transmission wheel; 62. Material ejection component; 621. First sealing plate; 622. Second sealing plate; 623. Horizontal fixing rod; 624. Material guide channel; 7. Flange mounting pipe; 8. Vacuum pump. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] Example 1

[0034] Please refer to the following: Figures 1 to 8A vacuum distillation device for rare and precious light metals based on electronic materials includes a support 1. A distillation vessel shell 2 is fixedly connected to the top of the support 1. One end of the distillation vessel shell 2 is covered with a lid 3, which forms a sealing fit when the lid 3 is placed on the distillation vessel shell 2. A high-temperature resistant sealing ring can be embedded in the end of the lid 3 near the distillation vessel shell 2 to ensure sealing performance. A tilting unit 4 is provided inside the distillation vessel shell 2. The tilting unit 4 includes a distillation component 41, a tilting guide component 42, and an opening component 43. The distillation component 41 is used to heat and distill the raw material. The tilting guide component 42 is used to drive the distillation component 41 to move horizontally to the outside of the distillation vessel shell 2. Then, the distillation component 41 is driven to tilt and flip. The opening component 43 is used to open the lid 3 during the horizontal movement of the distillation component 41.

[0035] In the above, the support frame 1 provides stable support for the entire equipment. The distillation vessel shell 2 and the vessel lid 3 cooperate to form a closed distillation space, which facilitates the creation of a vacuum environment. The distillation component 41 in the tilting unit 4 is responsible for the heating distillation operation. The tilting guide component 42 realizes the removal and flipping of the distillation component 41. The door opening component 43 automatically opens the vessel lid 3. The distillation component 41, the tilting guide component 42 and the door opening component 43 are linked without additional manual operation, which greatly improves the automation level of the equipment, reduces the errors and safety risks caused by human intervention, and meets the high requirements for operational precision in the raw material purification process.

[0036] Furthermore, the distillation component 41 includes a heat insulation cylinder 412, which may be made of polycrystalline mullite fiber. A fixing ring 411 is fixedly sleeved on the outer side of the heat insulation cylinder 412, and a crucible 413 is fixedly connected to the inner side of the heat insulation cylinder 412. The crucible 413 may be a boron nitride ceramic crucible. An installation gap is provided between the crucible 413 and the heat insulation cylinder 412. An electric heating tube 414 is installed in the installation gap and is fixedly sleeved on the outer side of the crucible 413. A fixing seat 415 is fixedly connected to the outer wall of the fixing ring 411. A first fixing shaft 416 and a second fixing shaft 418 are fixedly connected transversely through the fixing seat 415. Both ends of the first fixing shaft 416 and the second fixing shaft 418 are rotatably connected to a removal wheel 417.

[0037] In the above, the heat insulation cylinder 412 in the distillation component 41 can reduce heat loss to the outside, improve the heating efficiency of the electric heating tube 414 to the crucible 413, and reduce energy consumption. The fixing ring 411 enhances the structural strength of the heat insulation cylinder 412. The crucible 413 is used to carry raw materials. The fixing seat 415 is rotatably connected to the removal wheel 417 through the first fixing shaft 416 and the second fixing shaft 418, so that the distillation component 41 can move smoothly along the guide structure, providing a basis for subsequent removal and flipping actions.

[0038] Furthermore, the tilting guide component 42 includes an electric cylinder 421, which is fixedly installed on the outer side of the other end of the distillation vessel shell 2. A through-hole 429 is laterally opened at the other end of the distillation vessel shell 2. The telescopic end of the electric cylinder 421 extends through the through-hole 429 into the distillation vessel shell 2 and is then fixedly connected to a sealing block 428. One end of the sealing block 428 is fixedly connected to a transverse moving frame 422. A U-shaped seat 427 is fixedly connected to the bottom of the transverse moving frame 422. The U-shaped seat 427 is rotatably sleeved on the outer side of the first fixed shaft 416. The inner side of the distillation vessel shell 2 is fixedly connected to... The guide frame 423 has a horizontal guide groove 424, an arc-shaped guide groove 425, and a straight guide groove 426 sequentially extending through it. One end of the horizontal guide groove 424 is connected to one end of the arc-shaped guide groove 425, and the other end of the arc-shaped guide groove 425 is connected to the top of the straight guide groove 426. The removal wheel 417 is rotatably disposed in the horizontal guide groove 424. The horizontal guide groove 424, the arc-shaped guide groove 425, and the straight guide groove 426 are all adapted to the removal wheel 417. The included angle between the horizontal guide groove 424 and the straight guide groove 426 is 60°-90°.

[0039] In the above, the tilting guide component 42 is powered by the electric cylinder 421. Its telescopic end drives the transverse frame 422 through the through-hole 429. The sealing block 428 can seal the through-hole 429 during distillation to ensure the sealing of the distillation vessel shell 2. The U-shaped seat 427 is rotatably connected to the first fixed shaft 416, so that the distillation component 41 can move horizontally with the transverse frame 422 and rotate under the guidance of the horizontal guide groove 424, the arc guide groove 425 and the straight guide groove 426 of the guide frame 423. The horizontal guide groove 424 guides the distillation component 41 to move smoothly out of the distillation vessel shell 2. The arc guide groove 425 realizes the transition from horizontal to inclined. The straight guide groove 426 finally makes the distillation component 41 complete the tilting. The entire process has a stable trajectory.

[0040] Furthermore, the door opening component 43 includes an L-shaped rod 431, one end of which is fixedly connected to the inner wall of the vessel lid 3, and the other end of which is rotatably connected to a door opening guide wheel 435. A guide strip 432 is fixedly connected to one side of the transverse frame 422. A straight guide hole 433 and an oblique guide hole 434 are longitudinally opened on the guide strip 432. One end of the straight guide hole 433 is connected to one end of the oblique guide hole 434. A pin 436 is fixedly connected to the outer side of the vessel lid 3. One end of the outer side of the distillation vessel shell 2 is rotatably connected to the pin 436. The door opening guide wheel 435 is rolled in the oblique guide hole 434. Both the straight guide hole 433 and the oblique guide hole 434 are adapted to the door opening guide wheel 435.

[0041] In the above, the door opening component 43 uses mechanical linkage to realize the automatic opening and closing of the kettle lid 3. When the guide bar 432 moves with the transverse frame 422, the oblique guide elongated hole 434 drives the L-shaped rod 431 through the door opening guide wheel 435, so that the kettle lid 3 rotates around the pin shaft 436 to open. When the door opening guide wheel 435 enters the straight guide elongated hole 433, the kettle lid 3 remains open, ensuring that the distillation component 41 is moved out smoothly. No additional power source is required. Linking the movement of the distillation component 41 with the opening and closing of the kettle lid 3 simplifies the equipment structure and ensures the accuracy of the opening and closing action.

[0042] Example 2

[0043] For further details, please refer to [link / reference]. Figures 1 to 10 Based on Embodiment 1, a condensing unit 5 is installed on the distillation vessel shell 2. The condensing unit 5 includes a suction pipe 501. One end of the suction pipe 501 passes through the distillation vessel shell 2 and extends into its interior, where it is connected to a suction hood 502. The suction hood 502 is positioned directly above the crucible 413. The other end of the suction pipe 501 is connected to a heat exchange pipe 505, which can be made of copper alloy. An outer sleeve 503 is fixedly fitted around the outside of the heat exchange pipe 505. A condensing pipe 504, which can be made of copper, is installed inside the outer sleeve 503. Both ends of the condensing pipe 504 are connected to the inlet of an external chiller. The inlet and outlet ends are connected to the heat exchange tube 505. The condenser tube 504 is fixedly sleeved on the outside of the heat exchange tube 505. The inlet and outlet ends of the condenser tube 504 both pass through the outer shell 503 and extend to the outside. The bottom end of the heat exchange tube 505 is connected to the collection box 506. The top of the collection box 506 is fixedly connected to the air inlet pipe 507, which communicates with the inside of the collection box 506. A vacuum diaphragm pump 508 is fixedly installed on the outer wall of the distillation vessel shell 2. One end of the air inlet pipe 507 is connected to the air inlet end of the vacuum diaphragm pump 508. The outlet end of the vacuum diaphragm pump 508 is connected to the exhaust pipe 509. One end of the exhaust pipe 509 passes through the lower part of the distillation vessel shell 2 and communicates with the inside of the distillation vessel shell 2.

[0044] In the above description, the condensation unit 5 significantly improves the purification effect of the raw materials. The suction hood 502 is located directly above the crucible 413 and can efficiently collect the evaporated metal vapor. The suction pipe 501 introduces the vapor into the heat exchange pipe 505. The condenser pipe 504 inside the outer casing 503 quickly exchanges heat with the vapor through cold water circulation, causing it to condense into liquid and fall into the collection box 506, thus achieving the separation of impurities from the raw materials. The vacuum diaphragm pump 508 forms an airflow circulation through the inlet pipe 507 and the exhaust pipe 509, which not only ensures the steam collection efficiency but also avoids gas waste, improving the continuity and stability of the entire condensation system.

[0045] Furthermore, several flange mounting pipes 7 are fixedly connected to the other end of the distillation vessel shell 2, and valves are installed on each flange mounting pipe 7. A vacuum pump 8 is fixedly installed on the bracket 1, and the air inlet of the vacuum pump 8 is connected to one of the flange mounting pipes 7 through a pipe.

[0046] As described above, the flange mounting pipe 7 provides a multi-functional interface for the distillation vessel shell 2. The flange pipe connected to the vacuum pump 8 can quickly draw a vacuum to meet the requirements of vacuum distillation. Other flange pipes can be connected to inert gas delivery devices and vacuum pressure gauges can be installed to introduce inert gas before and after distillation to balance the pressure inside and outside the shell or prevent the raw materials from oxidizing. The valve settings can accurately control the opening and closing of each pipeline to ensure operational safety. At the same time, it enhances the compatibility of the equipment with other auxiliary devices and expands the applicability of the equipment.

[0047] Example 3

[0048] For further details, please refer to [link / reference]. Figures 1 to 11 Based on Embodiment 2, a discharge unit 6 is installed on the condensation unit 5. The discharge unit 6 includes a transmission component 61 and a material discharge component 62. The transmission component 61 includes a transmission bar 611, one end of which is fixedly connected to the bottom end of the pin 436. A movable elongated hole 612 is longitudinally opened through the transmission bar 611. One end of the collection box 506 is open, and a guide channel 624 is fixedly connected to the bottom of one end of the collection box 506. Two horizontal fixing rods 623 are symmetrically arranged inside the collection box 506. One end of the two horizontal fixing rods 623 is fixedly connected to a first sealing plate 621, and the other end of the two horizontal fixing rods 623 is fixedly connected to a second sealing plate 622. Both the first sealing plate 621 and the second sealing plate 622 are slidably disposed within the collection box 506, and are tightly fitted with the inner wall of the collection box 506 to form a sealed fit. To further improve the sealing performance, a high-temperature resistant sealing ring can be embedded on the surfaces of the first sealing plate 621 and the second sealing plate 622 that contact the collection box 506 to increase the sealing performance. The other end of the collection box 506 is slidably connected to a push-pull rod 613. One end of the push-pull rod 613 extends into the collection box 506 and is fixedly connected to the side wall of the first sealing plate 621. The top of the other end of the push-pull rod 613 is rotatably connected to a transmission wheel 614. The transmission wheel 614 is slidably disposed within the movable elongated hole 612, and the movable elongated hole 612 is adapted to the transmission wheel 614.

[0049] In the above, the discharge unit 6 achieves automatic discharge of condensate through the cooperation of the transmission component 61 and the unloading component 62. When the kettle lid 3 is opened, the pin 436 drives the transmission bar 611 to rotate, and the movable elongated hole 612 drives the push-pull rod 613 through the transmission wheel 614, so that the first sealing plate 621 and the second sealing plate 622 move under the action of the horizontal fixed rod 623. The first sealing plate 621 pushes the condensate collected inside the collection box 506, and the condensate is discharged through the guide channel 624 without manual cleaning. Moreover, the discharge action is linked with the opening and closing of the kettle lid 3, which further improves the automation level of the equipment, reduces the opportunity for manual contact with high-purity products, and reduces the risk of contamination.

[0050] Furthermore, the electric heating element 414, electric cylinder 421, vacuum diaphragm pump 508, and vacuum pump 8 are all electrically connected to an external control switch via wires. The operation of the electric heating element 414, electric cylinder 421, vacuum diaphragm pump 508, and vacuum pump 8 is controlled by the external control switch. The valve on the flange mounting pipe 7 can be an electric valve electrically connected to an external control switch, and the opening and closing of the valve is controlled by the external control switch.

[0051] In the above, the power supply line of the electric heating tube 414 passes through the pre-set wire hole on the side wall of the distillation vessel shell 2. The power supply line is protected against high temperature, and the wire hole is sealed. The electric heating tube 414, electric cylinder 421, vacuum diaphragm pump 508 and vacuum pump 8 are electrically connected to the external control switch, realizing centralized control of the equipment. The electric valve on the flange mounting pipe 7 is linked with the control switch, which can remotely control the pipeline opening and closing. It is especially suitable for safe operation in a vacuum environment and reduces the potential risks of manual close-range operation.

[0052] The working principle of the vacuum distillation equipment for rare and precious light metals based on electronic materials provided by this invention is as follows:

[0053] The lithium raw material to be processed is placed into crucible 413. The valve on flange mounting pipe 7 is opened and closed as needed. Vacuum pump 8 is started to evacuate the inside of the distillation vessel shell 2. Alternatively, it can be connected to an external inert gas delivery device via another flange mounting pipe 7 as needed. The electric heating tube 414 of the distillation component 41 is started. Through the heat insulation effect of the heat insulation cylinder 412, heat is concentrated on the crucible 413 to melt the raw material. The heating temperature is controlled below the boiling point of lithium and above the boiling points of low-boiling impurities such as sodium, potassium, and magnesium, to achieve the desired low-boiling point... Impurities preferentially vaporize to form metal vapor, activating the vacuum diaphragm pump 508 to create negative pressure in the collection box 506, driving the metal vapor through the suction hood 502 and suction pipe 501 into the heat exchange tube 505 of the condensing unit 5; an external chiller supplies circulating chilled water to the condensing tube 504, and through heat exchange between the condensing tube 504 and the heat exchange tube 505, the metal vapor condenses into liquid in the heat exchange tube 505, and then falls into the collection box 506 to complete the separation of low-boiling impurities. Other gases flow back to the distillation vessel shell 2 through the inlet pipe 507, vacuum diaphragm pump 508, and exhaust pipe 509 to maintain airflow circulation.

[0054] As low-boiling impurities continue to vaporize and separate, the purity of lithium remaining in crucible 413 gradually increases until it meets the purification requirements. After distillation, inert gas is supplied to the distillation vessel shell 2 through flange mounting pipe 7 to balance the pressure difference between the inside and outside of the distillation vessel shell 2 and avoid airflow impact affecting the operation when the lid is opened. Then, electric cylinder 421 is started. The telescopic end of electric cylinder 421 extends and pushes the sealing block 428 to move the transverse frame 422 synchronously. The transverse frame 422 drives the U-shaped seat 427 and guide bar 432 to move synchronously.

[0055] When the guide bar 432 moves, the door opening guide wheel 435 moves first in the inclined guide hole 434. As guided by the inclined guide hole 434, the door opening guide wheel 435 drives the L-shaped rod 431 to move. The L-shaped rod 431 drives the lid 3 to rotate 90° along the axis of the pin 436. At this time, the door opening guide wheel 435 enters the straight guide hole 433 from the inclined guide hole 434. At this time, the lid 3 is stable and no longer rotates. The lid 3 is in the fully open state.

[0056] As the lid 3 is opened, the pin 436 drives the transmission bar 611 to rotate. The movable elongated hole 612 drives the push-pull rod 613 through the transmission wheel 614, causing the first sealing plate 621 and the second sealing plate 622 to move under the action of the horizontal fixed rod 623. The first sealing plate 621 pushes the condensate collected inside the collection box 506, and the condensate is discharged through the guide channel 624 without the need for manual cleaning.

[0057] Meanwhile, the U-shaped seat 427 moves to push the first fixed shaft 416 to move the fixed seat 415. As the telescopic end of the electric cylinder 421 continues to extend, the removal rollers 417 on the first fixed shaft 416 and the second fixed shaft 418 roll within the horizontal guide groove 424. During this process, the crucible 413 remains horizontal until it is completely removed from the distillation vessel shell 2. Subsequently, the removal rollers 417 in the second fixed shaft 418 enter the straight guide groove 426 from the arc-shaped guide groove 425. At this time, the fixed seat 415 drives the heat insulation cylinder 412 to cause the crucible 413 to tilt and pour out the lithium liquid in the crucible 413, thus realizing the automatic pouring out of the purified lithium liquid in the crucible 413 and completing the unloading.

[0058] When the telescopic end of the electric cylinder 421 retracts, it drives the distillation component 41 to move in the opposite direction, moving the rotating wheel 417 back to the horizontal guide groove 424 along the straight guide groove 426 and the arc guide groove 425. The crucible 413 is then reset to a horizontal state. Subsequently, the operator puts the new rare and precious metal raw material that needs to be distilled into the crucible 413 and drives the distillation component 41 back into the distillation vessel shell 2 through the electric cylinder 421.

[0059] Simultaneously, the guide bar 432 moves into the distillation vessel shell 2. When the door opening guide wheel 435 enters the oblique guide long hole 434 from the straight guide long hole 433, it pulls the door opening guide wheel 435 to cause the L-shaped rod 431 to pull the vessel cover 3 to rotate in the opposite direction until the vessel cover 3 is closed on the distillation vessel shell 2. At the same time, the sealing block 428 seals the through hole 429, thereby forming a sealed space inside the distillation vessel shell 2 and the vessel cover 3. Then, the vacuum pump 8 is started to draw a vacuum for the next distillation operation.

[0060] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A vacuum distillation apparatus for rare and precious light metals based on electronic materials, comprising a support frame (1), characterized in that, The top of the bracket (1) is fixedly connected to the distillation vessel shell (2), and one end of the distillation vessel shell (2) is covered with a lid (3); The distillation vessel shell (2) is provided with a tilting unit (4), which includes a distillation component (41), a tilting guide component (42), and a door opening component (43); The distillation component (41) is used to heat and distill the raw material. The tilting guide component (42) is used to drive the distillation component (41) to move horizontally to the outside of the distillation vessel shell (2). Then, the distillation component (41) is driven to tilt and flip. The door opening component (43) is used to open the vessel lid (3) during the horizontal movement of the distillation component (41).

2. The vacuum distillation equipment for rare and precious light metals based on electronic materials according to claim 1, characterized in that, The distillation component (41) includes a heat insulation cylinder (412), a fixing ring (411) is fixedly sleeved on the outer side of the heat insulation cylinder (412), a crucible (413) is fixedly connected to the inner side of the heat insulation cylinder (412), an installation gap is provided between the crucible (413) and the heat insulation cylinder (412), an electric heating tube (414) is provided in the installation gap, the electric heating tube (414) is fixedly sleeved on the outer side of the crucible (413), a fixing seat (415) is fixedly connected to the outer wall of the fixing ring (411), a first fixing shaft (416) and a second fixing shaft (418) are fixedly connected transversely through the fixing seat (415), and a removal wheel (417) is rotatably connected to both ends of the first fixing shaft (416) and the second fixing shaft (418).

3. The vacuum distillation equipment for rare and precious light metals based on electronic materials according to claim 2, characterized in that, The tilting guide component (42) includes an electric cylinder (421), which is fixedly installed on the outer side of the other end of the distillation vessel shell (2). The other end of the distillation vessel shell (2) has a through-hole (429) extending horizontally through it. The telescopic end of the electric cylinder (421) extends through the through-hole (429) into the distillation vessel shell (2) and is then fixedly connected to a sealing block (428). One end of the sealing block (428) is fixedly connected to a transverse moving frame (422), and the bottom of the transverse moving frame (422) is fixedly connected to a U-shaped bracket. A U-shaped seat (427) is rotatably sleeved on the outside of the first fixed shaft (416). A guide frame (423) is fixedly connected to the inside of the distillation vessel shell (2). The guide frame (423) is sequentially provided with a horizontal guide groove (424), an arc-shaped guide groove (425), and a straight guide groove (426). One end of the horizontal guide groove (424) is connected to one end of the arc-shaped guide groove (425), and the other end of the arc-shaped guide groove (425) is connected to the top end of the straight guide groove (426).

4. The vacuum distillation equipment for rare and precious light metals based on electronic materials according to claim 3, characterized in that, The door opening component (43) includes an L-shaped rod (431), one end of which is fixedly connected to the inner wall of the kettle cover (3), and the other end of which is rotatably connected to a door opening guide wheel (435). A guide strip (432) is fixedly connected to one side of the transverse frame (422). A straight guide hole (433) and an oblique guide hole (434) are longitudinally opened on the guide strip (432). One end of the straight guide hole (433) is connected to one end of the oblique guide hole (434). A pin (436) is fixedly connected to the outer side of the kettle cover (3). One end of the outer side of the distillation kettle shell (2) is rotatably connected to the pin (436). The door opening guide wheel (435) is rolled in the oblique guide hole (434). Both the straight guide hole (433) and the oblique guide hole (434) are adapted to the door opening guide wheel (435).

5. A vacuum distillation apparatus for rare and precious light metals based on electronic materials as described in claim 4, characterized in that, A condensing unit (5) is installed on the distillation vessel shell (2). The condensing unit (5) includes a suction pipe (501). One end of the suction pipe (501) passes through the distillation vessel shell (2) and extends into its interior, where it is connected to a suction hood (502). The suction hood (502) is positioned directly above the crucible (413). The other end of the suction pipe (501) is connected to a heat exchange tube (505). An outer shell (503) is fixedly fitted around the outside of the heat exchange tube (505). A condensing tube (504) is installed inside the outer shell (503). The condensing tube (504) is fixedly fitted around the outside of the heat exchange tube (505). The inlet and outlet ends of the condenser tube (504) extend to the outside after passing through the outer casing (503). The bottom end of the heat exchange tube (505) is connected to a collection box (506). The top of the collection box (506) is fixedly connected to an air inlet pipe (507) that communicates with its interior. A vacuum diaphragm pump (508) is fixedly installed on the outer wall of the distillation vessel shell (2). One end of the air inlet pipe (507) is connected to the air inlet end of the vacuum diaphragm pump (508). The air outlet end of the vacuum diaphragm pump (508) is connected to an exhaust pipe (509). One end of the exhaust pipe (509) passes through the lower part of the distillation vessel shell (2) and communicates with its interior.

6. The vacuum distillation equipment for rare and precious light metals based on electronic materials according to claim 5, characterized in that, The condensation unit (5) is equipped with a discharge unit (6), which includes a transmission component (61) and a material discharge component (62).

7. A vacuum distillation apparatus for rare and precious light metals based on electronic materials as described in claim 6, characterized in that, The transmission component (61) includes a transmission bar (611), one end of which is fixedly connected to the bottom end of a pin (436). A movable elongated hole (612) is longitudinally opened on the transmission bar (611). A push-pull rod (613) is slidably connected to the other end of the collection box (506). One end of the push-pull rod (613) extends into the collection box (506) and is fixedly connected to the side wall of the first sealing plate (621). A transmission wheel (614) is rotatably connected to the top of the other end of the push-pull rod (613). The transmission wheel (614) is rolled in the movable elongated hole (612), and the movable elongated hole (612) is adapted to the transmission wheel (614).

8. A vacuum distillation apparatus for rare and precious light metals based on electronic materials as described in claim 7, characterized in that, The unloading component (62) includes a material guiding channel (624), which is fixedly connected to the lower part of one end of the collection box (506). One end of the collection box (506) is open. Two horizontal fixing rods (623) are symmetrically arranged inside the collection box (506). One end of the two horizontal fixing rods (623) is fixedly connected to a first sealing plate (621), and the other end of the two horizontal fixing rods (623) is fixedly connected to a second sealing plate (622). The first sealing plate (621) and the second sealing plate (622) are both sealed and slidably arranged inside the collection box (506).

9. A vacuum distillation apparatus for rare and precious light metals based on electronic materials according to claim 1, characterized in that, The other end of the distillation vessel shell (2) is fixedly connected to several flange mounting pipes (7) that communicate with its interior. Each flange mounting pipe (7) is equipped with a valve. A vacuum pump (8) is fixedly installed on the bracket (1). The air inlet of the vacuum pump (8) is connected to one of the flange mounting pipes (7) through a pipe.

10. A vacuum distillation apparatus for rare and precious light metals based on electronic materials according to claim 3, characterized in that, The removal wheel (417) is rotatably disposed in the horizontal guide groove (424), and the horizontal guide groove (424), the arc guide groove (425) and the straight guide groove (426) are all adapted to the removal wheel (417).

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