Vacuum distillation furnace

Abstract

The invention provides a vacuum distillation furnace, and belongs to the technical field of vacuum distillation. The vacuum distillation furnace comprises a workbench, a mounting base, a heating furnace, a crucible, an electric heating assembly, a collection cylinder assembly, a water cooling base, a magnetic conduction cylinder assembly, a lower magnet, an upper magnet, a collection plate, a lower vacuum chamber, an upper vacuum chamber, a water pipe assembly and a lifting mechanism, the magnetic conductive cylinder assembly is installed on the outer side of the water-cooling base, the collecting cylinder assembly is embedded into the water-cooling base, and the opening of the collecting cylinder assembly communicates with the opening of the heating furnace, so that when beryllium metal raw materials are heated, the vaporized beryllium metal raw materials can enter the collecting cylinder assembly, and the heating efficiency is improved. And a magnetic field can be applied to the periphery of an evaporation channel of the beryllium metal raw material, so that the high-purity beryllium material can be adsorbed to the side wall of the collecting cylinder assembly, the moving track of ferromagnetic impurities is shifted, the ferromagnetic impurities are adsorbed by the collecting plate, and the beryllium material is separated from the ferromagnetic impurities.

Description

Technical Field

[0001] The present invention belongs to the technical field of vacuum distillation, and particularly relates to a vacuum distillation furnace. Background Art

[0002] In the related art, when purifying metals, a vacuum distillation furnace is usually used to perform distillation operations on metal materials to obtain high-purity metals.

[0003] The prior art (Chinese invention patent, authorization announcement number: CN108570564B) discloses a vacuum distillation furnace. A reflux cylinder extending upward from bottom to top is provided in a vacuum furnace body. The inlet and outlet of the reflux cylinder are respectively arranged in a first cavity and a second cavity. The cylinder wall of the reflux cylinder is provided with a reflux plate for rectifying metal vapor. A heating device for heating metal liquid is provided in the first cavity, and a condensing device for collecting the rectified metal liquid is provided in the second cavity. Applying this device, the heating device in the first cavity heats the metal liquid, the metal vapor is rectified by the reflux plate of the reflux cylinder, the rectified metal vapor is collected by the condensing device arranged in the second cavity, and a vacuum pumping device performs vacuum pumping on the vacuum furnace body. This device turns the metal liquid into metal vapor by heating, and realizes the rectification and purification of the metal by distilling the metal vapor through the reflux cylinder. Moreover, the device does not need to be provided with a tail gas treatment device, has a simple structure, and is easy to implement.

[0004] In this prior art, when purifying beryllium metal materials and metals with low magnetism, the beryllium metal materials cannot be separated from ferromagnetic impurities, thereby reducing the effect of distillation purification. Summary of the Invention

[0005] In order to solve the problem in the above prior art that the beryllium metal materials cannot be separated from ferromagnetic impurities, thereby reducing the distillation purification effect, the present invention provides a vacuum distillation furnace. By applying a magnetic field around the evaporation channel of the beryllium metal raw material, high-purity beryllium materials can be adsorbed on the side wall of the collection cylinder assembly, and the running trajectory of ferromagnetic impurities is deflected and adsorbed by the collection plate, thereby separating the beryllium materials from the ferromagnetic impurities to improve the distillation purification effect of the beryllium metal raw materials. The specific technical solution is as follows: A vacuum distillation furnace, the vacuum distillation furnace comprising: a workbench, a mounting base, a heating furnace, a crucible, an electric heating assembly, a collection cylinder assembly, a water-cooled base, a magnetic guide cylinder assembly, a lower magnet, an upper magnet, a collection plate, a lower vacuum chamber, an upper vacuum chamber, a water pipe assembly and a lifting mechanism; the workbench is a hollow cavity; the mounting base is mounted on the top of the workbench; the heating furnace is a hollow cavity with an opening at the top, and the heating furnace is mounted on the mounting base; the crucible is a hollow cavity with an opening at the top, the crucible is mounted in the heating furnace, the crucible is located in the upper part of the heating furnace, and the opening of the crucible is communicated with the opening of the heating furnace; the electric heating assembly is mounted in the heating furnace, and the electric heating assembly is wound around the outside of the crucible; the collection cylinder assembly is a hollow cavity with an opening at the bottom, the collection cylinder assembly is located above the heating furnace, and the opening of the collection cylinder assembly is communicated with the opening of the heating furnace; the water-cooled base is a hollow cavity with an opening at the bottom, a cooling channel is arranged in the water-cooled base, the collection cylinder assembly is embedded in the water-cooled base, and the water-cooled base is connected to the collection cylinder assembly; the magnetic guide cylinder assembly is a hollow cavity with an opening at the bottom, the magnetic guide cylinder assembly is wound around the outside of the water-cooled base, and the magnetic guide cylinder assembly is connected to the water-cooled base; the lower magnet is annular, the lower magnet is wound around the outside of the water-cooled base, and the lower magnet is embedded in the magnetic guide cylinder assembly; the upper magnet is conical, the upper magnet is located in the magnetic guide cylinder assembly, the upper magnet is mounted on the top of the magnetic guide cylinder assembly, and the upper magnet is in contact with the top of the water-cooled base; the collection plate is a ferromagnetic body, the collection plate is located in the collection cylinder assembly, the collection plate is mounted on the top of the collection cylinder assembly, and the collection plate is opposite to the upper magnet; the lower vacuum chamber is a hollow cavity with openings at both the upper and lower ends, the lower vacuum chamber is mounted on the workbench, the lower vacuum chamber is wound around the outside of the mounting base and the heating furnace, and at least part of the magnetic guide cylinder assembly is located in the lower vacuum chamber; the upper vacuum chamber is a hollow cavity with an opening at the bottom, the upper vacuum chamber is placed on the lower vacuum chamber, the opening of the upper vacuum chamber is communicated with the opening of the lower vacuum chamber, the magnetic guide cylinder assembly is located in the upper vacuum chamber, and the upper vacuum chamber is connected to the magnetic guide cylinder assembly; at least two water pipe assemblies pass through the top of the upper vacuum chamber, and at least two water pipe assemblies are simultaneously connected to the cooling channel of the water-cooled base; the lifting mechanism is mounted on the workbench, and the lifting mechanism is connected to the upper vacuum chamber.

[0006] In addition, the vacuum distillation furnace in the above technical solution provided by the present invention may further have the following additional technical features: In the above technical solution, the electric heating assembly includes: a first heating tape, a second heating tape, a first heating electrode, a second heating electrode, a first temperature-measuring thermocouple, and a second temperature-measuring thermocouple; the first heating tape is installed in the heating furnace and is wound around the outside of the crucible; the second heating tape is installed in the heating furnace and is located below the crucible; one end of the first heating electrode is electrically connected to the first heating tape, the other end of the first heating electrode passes through the bottom of the heating furnace, and the other end of the first heating electrode is installed in the mounting base; one end of the second heating electrode is electrically connected to the second heating tape, the other end of the second heating electrode passes through the bottom of the heating furnace, and the other end of the second heating electrode is installed in the mounting base; one end of the first temperature-measuring thermocouple is electrically connected to the first heating tape, the other end of the first temperature-measuring thermocouple passes through the bottom of the heating furnace, and the other end of the first temperature-measuring thermocouple is installed in the mounting base; one end of the second temperature-measuring thermocouple is electrically connected to the second heating tape, the other end of the second temperature-measuring thermocouple passes through the bottom of the heating furnace, and the other end of the second temperature-measuring thermocouple is installed in the mounting base.

[0007] In the above technical solution, the electric heating assembly further includes: a side heat-insulating shield layer and a bottom heat-insulating shield layer; the side heat-insulating shield layer is installed in the heating furnace and is wound around the outside of the first heating tape and the second heating tape; the bottom heat-insulating shield layer is installed in the heating furnace and is located below the second heating tape.

[0008] In the above technical solution, the magnetic conduction cylinder assembly includes: a magnetic conduction bottom plate, a magnetic conduction cylinder body, and a magnetic conduction top plate; the magnetic conduction bottom is annular, the magnetic conduction bottom plate is wound around the outside of the water-cooled base, the magnetic conduction bottom plate is connected to the water-cooled base, and the lower magnet is installed on the magnetic conduction bottom plate; the magnetic conduction cylinder body is a hollow cavity with openings at both ends, the magnetic conduction cylinder body is wound around the outside of the water-cooled base, the bottom opening of the magnetic conduction cylinder body is connected to the magnetic conduction bottom plate, and the magnetic conduction cylinder body is embedded in the lower magnet; the magnetic conduction top plate covers the top opening of the magnetic conduction cylinder body, the magnetic conduction top plate is connected to the magnetic conduction cylinder body, the upper magnet is installed at the bottom of the magnetic conduction top plate, and the magnetic conduction top plate is connected to the top of the upper vacuum chamber; wherein, the outer surfaces of the magnetic conduction bottom plate, the magnetic conduction cylinder body, and the magnetic conduction cylinder body are nickel-plated.

[0009] In the above technical solution, the water pipe assembly includes: a first cooling water pipe, a corrugated pipe, and a second cooling water pipe; one end of the first cooling water pipe passes through the top of the upper vacuum chamber, and the first cooling water pipe is installed at the top of the upper vacuum chamber; the corrugated pipe is located in the upper vacuum chamber, and one end of the corrugated pipe is communicated with one end of the first cooling water pipe; one end of the second cooling water pipe is communicated with the other end of the corrugated pipe, the other end of the second cooling water pipe passes out of the upper vacuum chamber, and the other end of the second cooling water pipe is communicated with the cooling channel of the water-cooled base.

[0010] In the above technical solution, the lifting mechanism includes: a driving device, a lead screw, a lifting nut, a lifting cylinder, a connecting frame, a first set screw, a support clamp, a second set screw, and a guide cylinder; the driving device is located inside the workbench and is installed at the bottom of the workbench; an external thread is provided on the outer wall of the lead screw, the lead screw is located inside the workbench, and the lead screw is connected to the output end of the driving device; an internal thread is provided inside the lifting nut, and the lifting nut is sleeved outside the lead screw; the lifting cylinder is a hollow cavity with an opening at the bottom, the bottom of the lifting cylinder is connected to the lifting nut, the lead screw is embedded inside the lifting cylinder, and the lifting cylinder passes through the top of the workbench; the connecting frame is sleeved outside the lifting cylinder, the connecting frame is located above the workbench, and the connecting frame is connected to the upper vacuum chamber; at least two first set screws pass through the connecting frame and are in contact with the lifting cylinder; the support clamp is sleeved outside the lifting cylinder and is in contact with the bottom of the connecting frame; at least two second set screws pass through the support clamp and are in contact with the lifting cylinder; the guide cylinder is a hollow cavity with openings at both the upper and lower ends, the guide cylinder is fixed on the workbench, and the lifting cylinder passes through the guide cylinder; wherein, the external thread is adapted to the internal thread.

[0011] In the above technical solution, the collection cylinder assembly includes: a first collection cylinder body, a clamping groove, a second collection cylinder body, a clamping portion, a first connection flange, a second connection flange, a cover plate, and a connection portion; the first collection cylinder body is in a semi-cylindrical shape; the clamping groove is provided at the side wall end face of the first collection cylinder body; the second collection cylinder body is in a semi-cylindrical shape, and the second collection cylinder body is in contact with the first collection cylinder body; the clamping portion is connected to the side wall end face of the second collection cylinder body, and the clamping portion is embedded in the clamping groove; the first connection flange is in a semi-circular ring shape, the first connection flange is connected to the bottom of the first collection cylinder body, and the first connection flange is connected to the water-cooled base; the second connection flange is in a semi-circular ring shape, the second connection flange is connected to the bottom of the second collection cylinder body, the first connection flange is in contact with the second connection flange, and the second connection flange is connected to the water-cooled base; the cover plate is simultaneously buckled on the top of the first collection cylinder body and the top of the second collection cylinder body; the connection portion is connected to the cover plate and is simultaneously in contact with the inner walls of the first collection cylinder body and the second collection cylinder body; wherein, the clamping groove and the clamping portion are in an interference fit.

[0012] In the above technical solution, the vacuum distillation furnace further includes: a mechanical pump, an electromagnetic differential pressure valve, an electromagnetic side extraction valve, an electromagnetic baffle valve, a support frame, a molecular pump, and an inflation valve; the mechanical pump is installed outside the workbench; the input end of the electromagnetic differential pressure valve is communicated with the output end of the mechanical pump; the electromagnetic side extraction valve is installed on the outer wall of the lower vacuum chamber, and the input end of the electromagnetic side extraction valve is communicated with the output end of the electromagnetic differential pressure valve; the input end of the electromagnetic baffle valve is communicated with the output end of the electromagnetic differential pressure valve; the support frame is fixed on the ground and is located outside the workbench; the molecular pump is installed on the support frame, the input end of the molecular pump is communicated with the output end of the electromagnetic baffle valve, and the output end of the molecular pump is communicated with the lower vacuum chamber; the inflation valve is installed on the outer wall of the lower vacuum chamber, the output end of the inflation valve is communicated with the lower vacuum chamber, and the input end of the inflation valve is communicated with the gas source.

[0013] In the above technical solution, the vacuum distillation furnace further includes: an ionization gauge, a resistance gauge, a gate valve, a through hole, a baffle body, and an electric push rod; the ionization gauge is installed on the outer wall of the lower vacuum chamber, and the input end of the ionization gauge is embedded in the lower vacuum chamber; the resistance gauge is installed on the outer wall of the lower vacuum chamber, and the input end of the resistance gauge is embedded in the lower vacuum chamber; a receiving groove is provided in the gate valve, and the gate valve is simultaneously connected to the molecular pump and the outer wall of the lower vacuum chamber; the through hole is provided in the gate valve, the through hole is simultaneously communicated with the output end of the molecular pump and the lower vacuum chamber, and the through hole is communicated with the receiving groove; the baffle body is embedded in the receiving groove; the electric push rod is installed outside the gate valve, and the electric push rod is connected to the baffle body.

[0014] In the above technical solution, the vacuum distillation furnace further includes: a shielding cover, a third connecting flange, a fourth connecting flange, a first sealing ring, a second sealing ring, and a third sealing ring; the shielding cover is connected to the bottom of the water-cooled base and is wound around the outside of the heating furnace; the third connecting flange is sleeved outside the top of the lower vacuum chamber; the fourth connecting flange is sleeved outside the bottom of the upper vacuum chamber, and the fourth connecting flange is connected to the third connecting flange; the first sealing ring is an elastomer, and the first sealing ring is simultaneously embedded in the third connecting flange and the fourth connecting flange; the second sealing ring is an oxygen-free copper ring body, and the second sealing ring is simultaneously in contact with the ionization gauge and the upper vacuum chamber; the third sealing ring is an oxygen-free copper ring body, and the third sealing ring is simultaneously in contact with the resistance gauge and the upper vacuum chamber.

[0015] A vacuum distillation furnace according to the present invention has the following beneficial effects compared with the prior art: 1. By placing the heating furnace in the lower vacuum chamber, the magnetic conduction cylinder assembly in the upper vacuum chamber, and connecting the interior of the upper vacuum chamber with the interior of the lower vacuum chamber, when the interior of the lower vacuum chamber is evacuated, the heating furnace and the magnetic conduction cylinder assembly are in a vacuum environment, thereby reducing the distillation temperature of beryllium metal and improving the efficiency of beryllium metal distillation separation, and further enhancing the product's usage experience. By installing the upper magnet at the top of the magnetic conduction cylinder assembly and the lower magnet at the bottom of the magnetic conduction cylinder assembly, the upper magnet, the lower magnet, and the magnetic conduction cylinder assembly can form a magnetic field, which can increase the magnetism of the magnetic field compared to only using the upper magnet and the lower magnet, further enhancing the product's usage experience. At the same time, by installing the magnetic conduction cylinder assembly on the outside of the water-cooled base, embedding the collection cylinder assembly into the water-cooled base, and connecting the opening of the collection cylinder assembly with the opening of the heating furnace, when heating the beryllium metal raw material, the vaporized beryllium metal raw material can enter the collection cylinder assembly, and a magnetic field can be applied around the evaporation channel of the beryllium metal raw material, so that high-purity beryllium material can be adsorbed on the side wall of the collection cylinder assembly, the running trajectory of ferromagnetic impurities can be deflected, and adsorbed by the collection plate, thereby separating the beryllium material from the ferromagnetic impurities to improve the distillation and purification effect of the beryllium metal raw material.

[0016] 2. By installing the first heating belt in the heating furnace and winding the first heating belt around the outside of the crucible, the heating furnace can support the first heating belt, so that when the first heating belt is powered on, the first heating belt can heat the crucible and the beryllium metal raw material in the crucible. By installing the second heating belt in the heating furnace and placing the second heating belt below the crucible, the heating furnace can support the second heating belt, so that the second heating belt can heat the bottom of the crucible to improve the heating efficiency of the beryllium metal raw material in the crucible.

[0017] 3. By installing the lower heat-insulating shield in the heating furnace and placing the lower heat-insulating shield below the second heating belt, the heating furnace can install the lower heat-insulating shield, so that the lower heat-insulating shield can insulate the area below the second heating belt to avoid heat dissipation, and further the lower heat-insulating shield and the side heat-insulating shield cooperate to avoid heat loss inside the heating furnace, thereby enhancing the product's usage experience.

[0018] 4. By installing the lower magnet on the magnetic conduction bottom plate, the upper magnet on the magnetic conduction top plate, and connecting the magnetic conduction bottom plate, the magnetic conduction cylinder body, and the magnetic conduction top in sequence, the lower magnet, the magnetic conduction bottom plate, the magnetic conduction cylinder body, the magnetic conduction top, and the upper magnet can form a magnetic field. Compared with the magnetic field formed by the upper magnet and the lower magnet, the magnetic field formed by the lower magnet, the magnetic conduction bottom plate, the magnetic conduction cylinder body, the magnetic conduction top, and the upper magnet has a greater magnetic force, thus enhancing the product's usage experience.

[0019] 5. By connecting one end of the corrugated pipe to one end of the first cooling water pipe, connecting the other end of the corrugated pipe to one end of the second cooling water pipe, and connecting the other end of the second cooling water pipe to the cooling channel of the water-cooled base, the first cooling water pipe, the corrugated pipe, and the second cooling water pipe are connected together, so that cooling water can be injected into the cooling channel of the water-cooled base through the first cooling water pipe, the corrugated pipe, and the second cooling water pipe. At the same time, the flexibility of the corrugated pipe can be used to adapt to the distance between the water-cooled base and the top of the upper vacuum chamber, thereby reducing the difficulty of installing the water pipe assembly and improving the user experience of the product.

[0020] 6. When preparing to drive the upper vacuum chamber to move up and down, start the driving device to make the driving device drive the lead screw to rotate, so that the lead screw drives the lifting nut and the lifting cylinder to move up and down, and then the lifting cylinder drives the upper vacuum chamber to move up and down through the connecting frame to adjust the height of the upper vacuum chamber. Since the connecting frame and the support clamp are sleeved on the outside of the lifting cylinder, the connecting frame and the support clamp can move up and down along the lifting cylinder, thereby adjusting the connection position between the upper vacuum chamber and the lifting cylinder, reducing the connection difficulty between the upper vacuum chamber and the lifting cylinder, and further improving the user experience of the product. Since the lifting nut is threadedly connected to the lead screw and the lifting cylinder is embedded in the guide cylinder, the lifting cylinder can rotate in the guide cylinder, so that the upper vacuum chamber and the lower vacuum chamber are staggered, which is convenient for the staff to put the beryllium metal raw material into the crucible and is convenient for the staff to remove the collection cylinder assembly from the water-cooled base, further improving the user experience of the product.

[0021] 7. The first collection cylinder body and the second collection cylinder body are connected together through the clamping groove and the clamping part, so that the first collection cylinder body and the second collection cylinder body can be used as a whole, and high-purity beryllium material can be adsorbed on the inner walls of the first collection cylinder body and the second collection cylinder body; since the first collection cylinder body and the second collection cylinder body are connected together through the clamping part and the clamping groove, the first collection cylinder body and the second collection cylinder body can be separated, which is convenient for collecting and cleaning the high-purity beryllium material adsorbed on the inner walls of the first collection cylinder body and the second collection cylinder body, and further improving the user experience of the product.

[0022] 8. By opening the electromagnetic differential pressure valve, the electromagnetic baffle valve, and the electromagnetic bypass pump valve, the molecular pump and the mechanical pump can form a vacuum unit, so as to evacuate the inside of the combined upper vacuum chamber and lower vacuum chamber, and then obtain the working vacuum and ultimate vacuum environment required for the distillation of beryllium metal materials; moreover, by installing an electromagnetic bypass pump valve on the outer wall of the lower vacuum chamber and connecting the electromagnetic bypass pump valve to the mechanical pump, when preparing to replace the beryllium metal material, it is not necessary to stop the molecular pump, so that the molecular pump can pre-evacuate the lower vacuum chamber, thereby improving the working efficiency of the product.

[0023] 9. By embedding the baffle body into the receiving groove, installing the electric push rod on the outside of the gate plate, and connecting the electric push rod to the baffle body, the gate plate can support the electric push rod, so that the electric push rod can drive the baffle body to move in the receiving groove, and further control the area of the baffle body embedded in the through hole to control the flow rate of the molecular pump.

[0024] 10. By connecting the shielding cover to the bottom of the water-cooled base and winding the shielding cover around the outside of the heating furnace, the water-cooled base can support the shielding cover, so that the shielding cover can block the heating furnace to avoid heat dissipation from the opening of the heating furnace, and further avoid heat loss to improve the user experience of the product. By sleeving the third connecting flange on the outside of the top of the lower vacuum chamber, sleeving the fourth connecting flange on the outside of the upper vacuum bottom plate, and connecting the fourth connecting flange to the third connecting flange, the upper vacuum chamber and the lower vacuum chamber can be connected together through the third connecting flange and the fourth connecting flange, thereby reducing the difficulty of connecting the upper vacuum chamber and the lower vacuum chamber. Brief Description of the Drawings

[0025] Figure 1 is one of the perspective views of a vacuum distillation furnace of the present invention; Figure 2 is another perspective view of a vacuum distillation furnace of the present invention; Figure 3 is a cross-sectional view of a vacuum distillation furnace of the present invention; Figure 4 is Figure 3 the partial enlarged view at A of Figure 5 is Figure 3 the partial enlarged view at B of Figure 6 is a cross-sectional view of the upper vacuum chamber and the lower vacuum chamber of the present invention; Figure 7 is Figure 6 the partial enlarged view at C of Figure 8 is a perspective view of the upper vacuum chamber, the lower vacuum chamber and the lifting mechanism of the present invention; Figure 9 is a perspective view of the collection cylinder assembly of the present invention; Figure 10 is a perspective view of the gate plate and the electric push rod; Among them, Figures 1 to 10 the corresponding relationship between the reference numerals and the component names in 10 Workbench, 11 Installation base, 12 Heating furnace, 13 Crucible, 14 Electric heating component, 141 First heating belt, 142 Second heating belt, 143 First heating electrode, 144 Second heating electrode, 145 First temperature measuring thermocouple, 146 Second temperature measuring thermocouple, 147 Side heat preservation shielding layer, 148 Lower heat preservation shielding layer, 15 Collection cylinder assembly, 151 First collection cylinder body, 152 Clamping groove, 153 Second collection cylinder body, 154 Clamping part, 155 First connection flange, 156 Second connection flange, 157 Cover plate, 158 Connection part, 16 Water-cooled base, 17 Magnetically conductive cylinder assembly, 171 Magnetically conductive bottom plate, 172 Magnetically conductive cylinder body, 173 Magnetically conductive top plate, 18 Lower magnet, 19 Upper magnet, 20 Collection plate, 21 Lower vacuum chamber, 22 Upper vacuum chamber, 23 Water pipe assembly, 231 First cooling water pipe, 232 Bellows, 233 Second cooling water pipe, 24 Lifting mechanism, 241 Driving device, 242 Lead screw, 243 Lifting nut, 244 Lifting cylinder, 245 Connecting frame, 246 First setscrew, 247 Support clamp, 248 Second setscrew, 249 Guide cylinder, 25 Mechanical pump, 26 Electromagnetic differential pressure valve, 27 Electromagnetic side extraction valve, 28 Electromagnetic baffle valve, 29 Support frame, 30 Molecular pump, 31 Inflation valve, 32 Ionization gauge, 33 Resistance gauge, 34 Gate plate, 35 Through hole, 36 Baffle body, 37 Electric push rod, 38 Shielding cover, 39 Third connection flange, 40 Fourth connection flange. Detailed implementation mode

[0026] The following combines specific implementation cases and appendices Figures 1 to 10 to further illustrate the present invention, but the present invention is not limited to these embodiments.

[0027] A vacuum distillation furnace, such as Figures 1 to 6As shown in the figure, the vacuum distillation furnace includes: a workbench 10, a mounting base 11, a heating furnace 12, a crucible 13, an electric heating component 14, a collection cylinder assembly 15, a water-cooled base 16, a magnetic guide cylinder assembly 17, a lower magnet 18, an upper magnet 19, a collection plate 20, a lower vacuum chamber 21, an upper vacuum chamber 22, a water pipe assembly 23, and a lifting mechanism 24; the workbench 10 is a hollow cavity; the mounting base 11 is installed on the top of the workbench 10; the heating furnace 12 is a hollow cavity with an opening at the top, and the heating furnace 12 is installed on the mounting base 11; the crucible 13 is a hollow cavity with an opening at the top, the crucible 13 is installed in the heating furnace 12, the crucible 13 is located in the upper part of the heating furnace 12, and the opening of the crucible 13 is communicated with the opening of the heating furnace 12; the electric heating component 14 is installed in the heating furnace 12, and the electric heating component 14 is wound around the outside of the crucible 13; the collection cylinder assembly 15 is a hollow cavity with an opening at the bottom, the collection cylinder assembly 15 is located above the heating furnace 12, and the opening of the collection cylinder assembly 15 is communicated with the opening of the heating furnace 12; the water-cooled base 16 is a hollow cavity with an opening at the bottom, a cooling channel is arranged in the water-cooled base 16, the collection cylinder assembly 15 is embedded in the water-cooled base 16, and the water-cooled base 16 is connected to the collection cylinder assembly 15; the magnetic guide cylinder assembly 17 is a hollow cavity with an opening at the bottom, the magnetic guide cylinder assembly 17 is wound around the outside of the water-cooled base 16, and the magnetic guide cylinder assembly 17 is connected to the water-cooled base 16; the lower magnet 18 is annular, the lower magnet 18 is wound around the outside of the water-cooled base 16, and the lower magnet 18 is embedded in the magnetic guide cylinder assembly 17; the upper magnet 19 is conical, the upper magnet 19 is located in the magnetic guide cylinder assembly 17, the upper magnet 19 is installed on the top of the magnetic guide cylinder assembly 17, and the upper magnet 19 is in contact with the top of the water-cooled base 16; the collection plate 20 is a ferromagnetic body, the collection plate 20 is located in the collection cylinder assembly 15, the collection plate 20 is installed on the top of the collection cylinder assembly 15, and the collection plate 20 is opposite to the upper magnet 19; the lower vacuum chamber 21 is a hollow cavity with openings at both the upper and lower ends, the lower vacuum chamber 21 is installed on the workbench 10, the lower vacuum chamber 21 is wound around the outside of the mounting base 11 and the heating furnace 12, and at least part of the magnetic guide cylinder assembly 17 is located in the lower vacuum chamber 21; the upper vacuum chamber 22 is a hollow cavity with an opening at the bottom, the upper vacuum chamber 22 is placed on the lower vacuum chamber 21, the opening of the upper vacuum chamber 22 is communicated with the opening of the lower vacuum chamber 21, the magnetic guide cylinder assembly 17 is located in the upper vacuum chamber 22, and the upper vacuum chamber 22 is connected to the magnetic guide cylinder assembly 17; at least two water pipe assemblies 23 pass through the top of the upper vacuum chamber 22, and at least two water pipe assemblies 23 are simultaneously connected to the cooling channel of the water-cooled base 16; the lifting mechanism 24 is installed on the workbench 10, and the lifting mechanism 24 is connected to the upper vacuum chamber 22.

[0028] By installing the mounting base 11 at the bottom of the workbench 10 and installing the heating furnace 12 on the mounting base 11, the mounting base 11 supports the heating furnace 12, thereby improving the stability of the heating furnace 12; by installing the crucible 13 inside the heating furnace 12, making the crucible 13 located at the upper part of the heating furnace 12 and the opening of the crucible 13 communicate with the opening of the heating furnace 12, the heating furnace 12 accommodates and supports the crucible 13, so that the staff can put beryllium metal raw materials into the crucible 13 through the opening of the heating furnace 12, and then the crucible 13 accommodates the beryllium metal raw materials; by installing the electric heating component 14 inside the heating furnace 12 and winding the electric heating component 14 around the outside of the crucible 13, the heating furnace 12 supports the electric heating component 14, so that the electric heating component 14 heats the crucible 13 and the beryllium metal raw materials inside the crucible 13. By placing the collection cylinder assembly 15 above the heating furnace 12 and making the opening of the collection cylinder assembly 15 communicate with the opening of the heating furnace 12, after the electric heating component 14 heats the beryllium metal raw materials in the crucible 13, the gas generated by the beryllium metal raw materials can enter the collection cylinder assembly 15 through the opening of the crucible 13, the opening of the heating furnace 12 and the opening of the collection cylinder assembly 15; by embedding the collection cylinder assembly 15 into the water-cooling base 16 and connecting the water-cooling base 16 with the collection cylinder assembly 15, the water-cooling base 16 and the collection cylinder assembly 15 are connected together, so that the water-cooling base 16 accommodates the collection cylinder assembly 15; by winding the magnetic guide cylinder assembly 17 around the outside of the water-cooling base 16 and connecting the magnetic guide cylinder assembly 17 with the water-cooling base 16, the collection cylinder assembly 15, the water-cooling base 16 and the magnetic guide cylinder assembly 17 are connected as a whole; by winding the annular lower magnet 18 around the outside of the water-cooling base 16, installing the lower magnet 18 at the bottom of the magnetic guide cylinder assembly 17, installing the upper magnet 19 at the top of the magnetic guide cylinder assembly 17 and making the upper magnet 19 fit with the top of the water-cooling base 16, the magnetic guide cylinder assembly 17 supports the lower magnet 18 and the upper magnet 19, so that the upper magnet 19, the lower magnet 18 and the magnetic guide cylinder assembly 17 can form a magnetic field; by placing the collection plate 20 inside the collection cylinder assembly 15, installing the collection plate 20 at the top of the collection cylinder assembly 15 and making the collection plate 20 face the upper magnet 19, the collection cylinder assembly 15 supports the collection plate 20, so that the collection plate 20 has a certain magnetism.By fixing the lower vacuum chamber 21 on the workbench 10 and winding the lower vacuum chamber 21 around the outside of the mounting base 11 and the heating furnace 12, the lower vacuum chamber 21 can accommodate and protect the mounting base 11 and the heating furnace 12; by placing the upper vacuum chamber 22 on the lower vacuum chamber 21 and making the opening of the upper vacuum chamber 22 communicate with the opening of the lower vacuum chamber 21, the lower vacuum chamber 21 can support the upper vacuum chamber 22, so that the interior of the lower vacuum chamber 21 and the interior of the upper vacuum chamber 22 can be connected together; by connecting the upper vacuum chamber 22 with the magnetic conduction cylinder assembly 17, the upper vacuum chamber 22 can support the magnetic conduction cylinder assembly 17, so that the upper vacuum chamber 22 can drive the magnetic conduction cylinder assembly 17, the water-cooled base 16 and the collection cylinder assembly 15 to move; by passing at least two water pipe assemblies 23 through the top of the upper vacuum chamber 22 and making at least two water pipe assemblies 23 communicate with the cooling channels of the water-cooled base 16 at the same time, the cooling water can be injected into the water-cooled base 16 through the water pipe assemblies 23, so that the water-cooled base 16 can cool the collection cylinder assembly 15; by installing the lifting mechanism 24 on the workbench 10 and connecting the lifting mechanism 24 with the upper vacuum chamber 22, the workbench 10 can support the lifting mechanism 24, so that the lifting mechanism 24 can drive the upper vacuum chamber 22 to move up and down.

[0029] When specifically using the product, first pour the beryllium metal raw material into the crucible 13 and place the crucible 13 in the heating furnace 12; at this time, the upper vacuum chamber 22 is placed inside the lower vacuum chamber 21; then, evacuate the interior of the lower vacuum chamber 21 so that the interiors of the upper vacuum chamber 22 and the lower vacuum chamber 21 are in a vacuum state; thereafter, energize the electric heating component 14 so that the electric heating component 14 heats the crucible 13 and the beryllium metal raw material inside the crucible 13, causing the beryllium metal raw material to vaporize and move upward into the collection cylinder assembly 15; at the same time, inject cooling water into the water-cooled base 16 to reduce the temperature inside the collection cylinder assembly 15 by the water-cooled base 16; since the temperature inside the collection cylinder assembly 15 is reduced, when the vaporized beryllium metal raw material enters the collection cylinder assembly 15, it will quickly be liquefied, thereby distilling the beryllium metal raw material, and enabling high-purity beryllium material to adsorb on the side wall of the collection cylinder assembly 15; since the lower magnet 18, the magnetic conduction cylinder assembly 17, and the upper magnet 19 can form a magnetic field and have a certain magnetism for the collection plate 20 opposite to the upper magnet 19, a magnetic field can be applied around the evaporation channel of the beryllium metal raw material, causing the running trajectory of ferromagnetic impurities during the evaporation process to shift, and enabling the ferromagnetic impurities to be adsorbed by the collection plate 20 to complete the distillation and purification of the beryllium metal raw material; when the distillation and purification of the beryllium metal raw material are completed, stop energizing the electric heating component 14, stop evacuating the lower vacuum chamber 21, and inject air into the lower vacuum chamber 21 to relieve the vacuum state inside the lower vacuum chamber 21 and the upper vacuum chamber 22; thereafter, start the lifting mechanism 24 to drive the upper vacuum chamber 22, the magnetic conduction cylinder assembly, the water-cooled base 16, and the collection cylinder assembly 15 to move upward, so that the upper vacuum chamber 22 is disengaged from the lower vacuum chamber 21; when the upper vacuum chamber 22 moves upward to a predetermined height, remove the collection cylinder assembly 15 from the magnetic conduction cylinder assembly 17 and extract the collection cylinder assembly 15 from the magnetic conduction cylinder assembly 17 to collect the high-purity beryllium material adsorbed on the side wall of the collection cylinder assembly 15; thereafter, the staff can put the beryllium metal raw material into the crucible 13 to facilitate the distillation and purification of the beryllium metal raw material again.

[0030] With the above structure, by placing the heating furnace 12 inside the lower vacuum chamber 21, the magnetic guide cylinder assembly 17 inside the upper vacuum chamber 22, and connecting the inside of the upper vacuum chamber 22 with the inside of the lower vacuum chamber 21, when the inside of the lower vacuum chamber 21 is evacuated, the heating furnace 12 and the magnetic guide cylinder assembly 17 are in a vacuum environment, thereby reducing the distillation temperature of beryllium metal and improving the efficiency of beryllium metal distillation separation, and further enhancing the user experience of the product. By installing the upper magnet 19 on the top of the magnetic guide cylinder assembly 17 and the lower magnet 18 on the bottom of the magnetic guide cylinder assembly 17, the upper magnet 19, the lower magnet 18 and the magnetic guide cylinder assembly 17 can form a magnetic field, which can increase the magnetism of the magnetic field compared to only using the upper magnet 19 and the lower magnet 18, and further enhance the user experience of the product. At the same time, by installing the magnetic guide cylinder assembly 17 outside the water-cooled base 16, embedding the collection cylinder assembly 15 into the water-cooled base 16, and connecting the opening of the collection cylinder assembly 15 with the opening of the heating furnace 12, when the beryllium metal raw material is heated, the vaporized beryllium metal raw material can enter the collection cylinder assembly 15, and a magnetic field can be applied around the evaporation channel of the beryllium metal raw material, so that the high-purity beryllium material can be adsorbed on the side wall of the collection cylinder assembly 15, and the running track of the ferromagnetic impurities can be deflected and adsorbed by the collection plate 20, thereby separating the beryllium material from the ferromagnetic impurities and improving the distillation and purification effect of the beryllium metal raw material.

[0031] Specifically, the heating furnace 12 is a stainless-steel double-layer water-cooled shell, so that cooling water can be injected into the heating furnace 12 to cool the inside of the heating furnace 12.

[0032] Specifically, the inner and outer surfaces of the upper vacuum chamber 22 and the lower vacuum chamber 21 are both mechanically polished, and the outer surfaces of the upper vacuum chamber 22 and the lower vacuum chamber 21 are sandblasted and passivated.

[0033] In the embodiment of the present invention, as Figures 5 to 7As shown in the figure, the electric heating assembly 14 includes: a first heating tape 141, a second heating tape 142, a first heating electrode 143, a second heating electrode 144, a first temperature measuring thermocouple 145, and a second temperature measuring thermocouple 146; the first heating tape 141 is installed in the heating furnace 12, and the first heating tape 141 is wound around the outside of the crucible 13; the second heating tape 142 is installed in the heating furnace 12, and the second heating tape 142 is located below the crucible 13; one end of the first heating electrode 143 is electrically connected to the first heating tape 141, the other end of the first heating electrode 143 passes through the bottom of the heating furnace 12, and the other end of the first heating electrode 143 is installed in the mounting base 11; one end of the second heating electrode 144 is electrically connected to the second heating tape 142, the other end of the second heating electrode 144 passes through the bottom of the heating furnace 12, and the other end of the second heating electrode 144 is installed in the mounting base 11; one end of the first temperature measuring thermocouple 145 is electrically connected to the first heating tape 141, the other end of the first temperature measuring thermocouple 145 passes through the bottom of the heating furnace 12, and the other end of the first temperature measuring thermocouple 145 is installed in the mounting base 11; one end of the second temperature measuring thermocouple 146 is electrically connected to the second heating tape 142, the other end of the second temperature measuring thermocouple 146 passes through the bottom of the heating furnace 12, and the other end of the second temperature measuring thermocouple 146 is installed in the mounting base 11.

[0034] By installing the first heating belt 141 inside the heating furnace 12 and winding the first heating belt 141 around the outside of the crucible 13, the heating furnace 12 supports the first heating belt 141, so that when the first heating belt 141 is powered on, the first heating belt 141 heats the crucible 13 and the beryllium metal raw material inside the crucible 13; by installing the second heating belt 142 inside the heating furnace 12 and positioning the second heating belt 142 below the crucible 13, the heating furnace 12 supports the second heating belt 142, so that the second heating belt 142 can heat the bottom of the crucible 13 to improve the heating efficiency of the beryllium metal raw material inside the crucible 13. By electrically connecting one end of the first heating electrode 143 to the first heating belt 141, passing the other end of the first heating electrode 143 through the bottom of the heating furnace 12, and installing the other end of the first heating electrode 143 inside the mounting base 11, the mounting base 11 supports the first heating electrode 143, so that the power supply can supply power to the first heating belt 141 through the first heating electrode 143; by electrically connecting one end of the second heating electrode 144 to the second heating belt 142, passing the other end of the second heating electrode 144 through the bottom of the heating furnace 12, and installing the other end of the second heating electrode 144 inside the mounting base 11, the mounting base 11 supports the second heating electrode 144, so that the power supply can supply power to the second heating belt 142 through the second heating electrode 144. By electrically connecting one end of the first temperature measuring thermocouple 145 to the first heating belt 141, passing the other end of the first temperature measuring thermocouple 145 through the bottom of the heating furnace 12, and installing the other end of the first temperature measuring thermocouple 145 inside the mounting base 11, the mounting base 11 supports the first temperature measuring thermocouple 145, so that the first temperature measuring thermocouple 145 measures the temperature of the first heating belt 141, and thus facilitates the precise control of the heating temperature of the first heating belt 141 to improve the product use experience; by electrically connecting one end of the second temperature measuring thermocouple 146 to the second heating belt 142, passing the other end of the second temperature measuring thermocouple 146 through the bottom of the heating furnace 12, and installing the other end of the second temperature measuring thermocouple 146 inside the mounting base 11, the mounting base 11 supports the second temperature measuring thermocouple 146, so that the second temperature measuring thermocouple 146 measures the temperature of the second heating belt 142, and thus facilitates the precise control of the heating temperature of the second heating belt 142 to improve the product use experience.

[0035] Specifically, the first heating belt 141 and the second heating belt 142 are tantalum heating belts; the first temperature measuring thermocouple 145 and the second temperature measuring thermocouple 146 are tungsten-rhenium thermocouples, and boron nitride insulating sleeves are installed outside both the first temperature measuring thermocouple 145 and the second temperature measuring thermocouple 146.

[0036] In the embodiment of the present invention, as Figures 5 to 7As shown, the electric heating component 14 further includes a side heat insulation shielding layer 147 and a bottom heat insulation shielding layer 148. The side heat insulation shielding layer 147 is installed inside the heating furnace 12 and is wound around the outer sides of the first heating band 141 and the second heating band 142. The bottom heat insulation shielding layer 148 is installed inside the heating furnace 12 and is located below the second heating band 142.

[0037] By embedding the side heat insulation shielding layer 147 inside the heating furnace 12 and winding the side heat insulation shielding layer 147 around the outer sides of the first heating band 141 and the second heating band 142, heat preservation of the sides of the first heating band 141 and the second heating band 142 is achieved by the side heat insulation shielding layer 147, thus avoiding heat dissipation and enhancing the user experience of the product. By installing the bottom heat insulation shielding layer 148 inside the heating furnace 12 and locating the bottom heat insulation shielding layer 148 below the second heating band 142, installation of the bottom heat insulation shielding layer 148 by the heating furnace 12 is achieved, thus achieving heat preservation of the area below the second heating band 142 by the bottom heat insulation shielding layer 148 to avoid heat dissipation, and further achieving cooperation between the bottom heat insulation shielding layer 148 and the side heat insulation shielding layer 147 to avoid heat loss inside the heating furnace 12 and enhancing the user experience of the product.

[0038] Specifically, the side heat insulation shielding layer 147 is a 7-layer molybdenum heat insulation and reflection shielding layer, and the bottom heat insulation shielding layer 148 is also a 7-layer molybdenum heat insulation and reflection shielding layer.

[0039] In an embodiment of the present invention, as Figure 4 and Figure 5 shown, the magnetic conduction cylinder assembly 17 includes a magnetic conduction bottom plate 171, a magnetic conduction cylinder body 172, and a magnetic conduction top plate. The magnetic conduction bottom is annular. The magnetic conduction bottom plate 171 is wound around the outer side of the water-cooled base 16, the magnetic conduction bottom plate 171 is connected to the water-cooled base 16, and the lower magnet 18 is installed on the magnetic conduction bottom plate 171. The magnetic conduction cylinder body 172 is a hollow cavity with openings at both ends. The magnetic conduction cylinder body 172 is wound around the outer side of the water-cooled base 16. The bottom opening of the magnetic conduction cylinder body 172 is connected to the magnetic conduction bottom plate 171, and the magnetic conduction cylinder body 172 is embedded inside the lower magnet 18. The magnetic conduction top plate covers the top opening of the magnetic conduction cylinder body 172. The magnetic conduction top plate is connected to the magnetic conduction cylinder body 172. The upper magnet 19 is installed at the bottom of the magnetic conduction top plate, and the magnetic conduction top plate is connected to the top of the upper vacuum chamber 22. Among them, the outer surfaces of the magnetic conduction bottom plate 171, the magnetic conduction cylinder body 172, and the magnetic conduction cylinder body 172 are treated by nickel plating.

[0040] By winding the annular magnetic conductive bottom around the outer side of the water-cooled base 16, connecting the magnetic conductive bottom plate 171 to the water-cooled base 16, and installing the lower magnet 18 on the magnetic conductive bottom, the water-cooled base 16 supports the magnetic conductive bottom plate 171, so as to realize the synchronous movement of the water-cooled base 16 and the magnetic conductive bottom plate 171, and further realize the support of the magnetic conductive bottom for the lower magnet 18; by connecting the bottom opening of the magnetic conductive cylinder 172 to the magnetic conductive bottom plate 171 by welding and winding the magnetic conductive cylinder 172 around the outer side of the water-cooled base 16, the magnetic conductive bottom plate 171 supports the magnetic conductive cylinder 172, so as to realize the accommodation of the magnetic conductive cylinder 172 for the water-cooled base 16; by covering the top opening of the magnetic conductive cylinder 172 with the magnetic conductive top 173 by welding, installing the upper magnet 19 at the bottom of the magnetic conductive top 173, and connecting the magnetic conductive top 173 to the top of the upper vacuum chamber 22, the magnetic conductive top plate is connected to the magnetic conductive cylinder 172, so as to realize that the upper vacuum chamber 22 can drive the magnetic conductive top plate, the magnetic conductive cylinder 172 and the magnetic conductive bottom plate 171 to move up and down. At the same time, it can also realize the support of the magnetic conductive top 173 for the upper magnet 19.

[0041] With the above structure, by installing the lower magnet 18 on the magnetic conductive bottom plate 171, installing the upper magnet 19 on the magnetic conductive top plate, and connecting the magnetic conductive bottom plate 171, the magnetic conductive cylinder 172 and the magnetic conductive top 173 in sequence, a magnetic field can be formed by the lower magnet 18, the magnetic conductive bottom plate 171, the magnetic conductive cylinder 172, the magnetic conductive top 173 and the upper magnet 19. Compared with the magnetic field formed by the upper magnet 19 and the lower magnet 18, the magnetic force of the magnetic field formed by the lower magnet 18, the magnetic conductive bottom plate 171, the magnetic conductive cylinder 172, the magnetic conductive top 173 and the upper magnet 19 is greater, thus improving the user experience of the product.

[0042] In the embodiment of the present invention, as Figure 6 shown, the water pipe assembly 23 includes: a first cooling water pipe 231, a corrugated pipe 232 and a second cooling water pipe 233; one end of the first cooling water pipe 231 passes through the top of the upper vacuum chamber 22, and the first cooling water pipe 231 is installed on the top of the upper vacuum chamber 22; the corrugated pipe 232 is located in the upper vacuum chamber 22, and one end of the corrugated pipe 232 is communicated with one end of the first cooling water pipe 231; one end of the second cooling water pipe 233 is communicated with the other end of the corrugated pipe 232, the other end of the second cooling water pipe 233 passes out of the upper vacuum chamber 22, and the other end of the second cooling water pipe 233 is communicated with the cooling channel of the water-cooled base 16.

[0043] By passing one end of the first cooling water pipe 231 through the top of the upper vacuum chamber 22 and installing the first cooling water pipe 231 on the top of the upper vacuum chamber 22, the upper vacuum chamber 22 supports the first cooling water pipe 231, thereby improving the stability of the first cooling water pipe 231; by connecting one end of the bellows 232 to one end of the first cooling water pipe 231, connecting the other end of the bellows 232 to one end of the second cooling water pipe 233, and connecting the other end of the second cooling water pipe 233 to the cooling channel of the water-cooled base 16, the first cooling water pipe 231, the bellows 232 and the second cooling water pipe 233 are connected together, so that cooling water can be injected into the cooling channel of the water-cooled base 16 through the first cooling water pipe 231, the bellows 232 and the second cooling water pipe 233. At the same time, the telescopic property of the bellows 232 can be used to adapt to the distance between the water-cooled base 16 and the top of the upper vacuum chamber 22, thereby reducing the difficulty of installing the water pipe assembly 23 and improving the user experience of the product.

[0044] In an embodiment of the present invention, as Figure 1 and Figure 8 shown, the lifting mechanism 24 includes: a driving device 241, a lead screw 242, a lifting nut 243, a lifting cylinder 244, a connecting frame 245, a first set screw 246, a support clamp 247, a second set screw 248 and a guide cylinder 249; the driving device 241 is located in the workbench 10, and the driving device 241 is installed at the bottom of the workbench 10; an external thread is provided on the outer wall of the lead screw 242, the lead screw 242 is located in the workbench 10, and the lead screw 242 is connected to the output end of the driving device 241; an internal thread is provided in the lifting nut 243, and the lifting nut 243 is sleeved outside the lead screw 242; the lifting cylinder 244 is a hollow cavity with an opening at the bottom, the bottom of the lifting cylinder 244 is connected to the lifting nut 243, the lead screw 242 is embedded in the lifting cylinder 244, and the lifting cylinder 244 passes through the top of the workbench 10; the connecting frame 245 is sleeved outside the lifting cylinder 244, the connecting frame 245 is located above the workbench 10, and the connecting frame 245 is connected to the upper vacuum chamber 22; at least two first set screws 246 pass through the connecting frame 245, and at least two first set screws 246 are in contact with the lifting cylinder 244; the support clamp 247 is sleeved outside the lifting cylinder 244, and the support clamp 247 is in contact with the bottom of the connecting frame 245; at least two second set screws 248 pass through the support clamp 247, and at least two second set screws 248 are in contact with the lifting cylinder 244; the guide cylinder 249 is a hollow cavity with openings at both the upper and lower ends, the guide cylinder 249 is fixed on the workbench 10, and the lifting cylinder 244 passes through the guide cylinder 249; wherein, the external thread is adapted to the internal thread.

[0045] By installing the driving device 241 at the bottom of the workbench 10, the lead screw 242 is located inside the workbench 10, and the lead screw 242 is connected to the output end of the driving device 241, so as to enable the driving device 241 to drive the lead screw 242 to rotate inside the workbench 10, thereby providing power for rotating the lead screw 242; by sleeving the lifting nut 243 on the outside of the lead screw 242 and connecting the bottom of the lifting cylinder 244 to the lifting nut 243, the threaded connection between the lead screw 242 and the lifting nut 243 is realized, so as to realize rotating the lead screw 242 and driving the lifting nut 243 and the lifting cylinder 244 to move up and down; by embedding the lead screw 242 into the lifting cylinder 244 and enabling the lifting cylinder 244 to pass through the top of the workbench 10, the lifting cylinder 244 can accommodate the lead screw 242, thereby reducing the space occupied by the product and improving the use experience of the product; by sleeving the connecting frame 245 on the outside of the lifting cylinder 244, connecting the connecting frame 245 to the upper vacuum chamber 22, passing at least two first set screws 246 through the connecting frame 245 and making at least two first set screws 246 fit with the lifting cylinder 244, the connecting frame 245 is fixed on the outside of the lifting cylinder 244 by multiple first set screws 246, and the connecting frame 245 is connected to the upper vacuum chamber 22, so that when the lifting cylinder 244 moves up and down, the lifting cylinder 244 can drive the upper vacuum chamber 22 to move up and down through the connecting frame 245, and further realize controlling the combination or separation of the upper vacuum chamber 22 and the lower vacuum chamber 21. By sleeving the support clamp 247 on the outside of the lifting cylinder 244, making the support clamp 247 fit with the bottom of the connecting frame 245, passing at least two second set screws 248 through the support clamp 247 and making at least two second set screws 248 fit with the lifting cylinder 244, the support clamp 247 is fixed on the outside of the lifting cylinder 244 by multiple second set screws 248, so as to realize supporting the connecting frame 245 through the support clamp 247, and further improve the stability of the connecting frame 245; by fixing the guide cylinder 249 on the workbench 10 and enabling the lifting cylinder 244 to pass through the guide cylinder 249, the guide cylinder 249 guides the lifting cylinder 244, so as to prevent the lifting cylinder 244 from shifting when moving up and down, and improve the stability of the up and down movement of the lifting cylinder 244 and the upper vacuum chamber 22.

[0046] With the above structure, when preparing to drive the upper vacuum chamber 22 to move up and down, the driving device 241 is started, causing the driving device 241 to drive the lead screw 242 to rotate, thereby causing the lead screw 242 to drive the lifting nut 243 and the lifting cylinder 244 to move up and down. Further, the lifting cylinder 244 drives the upper vacuum chamber 22 to move up and down through the connecting frame 245 to adjust the height of the upper vacuum chamber 22. Since the connecting frame 245 and the support clamp 247 are sleeved outside the lifting cylinder 244, the connecting frame 245 and the support clamp 247 can move up and down along the lifting cylinder 244, thereby adjusting the connection position between the upper vacuum chamber 22 and the lifting cylinder 244, reducing the connection difficulty between the upper vacuum chamber 22 and the lifting cylinder 244, and further enhancing the user experience of the product. Since the lifting nut 243 is threadedly connected to the lead screw 242 and the lifting cylinder 244 is embedded in the guiding cylinder 249, the lifting cylinder 244 can rotate within the guiding cylinder 249, enabling the upper vacuum chamber 22 to be staggered with the lower vacuum chamber 21, facilitating the staff to place the beryllium metal raw material into the crucible 13 and to remove the collection cylinder assembly 15 from the water-cooled base 16, further enhancing the user experience of the product.

[0047] In an embodiment of the present invention, as Figure 9 shown, the collection cylinder assembly 15 includes: a first collection cylinder body 151, a clamping groove 152, a second collection cylinder body 153, a clamping portion 154, a first connecting flange 155, a second connecting flange 156, a cover plate 157, and a connecting portion 158; the first collection cylinder body 151 is in a semi-cylindrical shape; the clamping groove 152 is provided at the side wall end face of the first collection cylinder body 151; the second collection cylinder body 153 is in a semi-cylindrical shape and fits with the first collection cylinder body 151; the clamping portion 154 is connected to the side wall end face of the second collection cylinder body 153 and the clamping portion 154 is embedded in the clamping groove 152; the first connecting flange 155 is in a semi-circular ring shape, the first connecting flange 155 is connected to the bottom of the first collection cylinder body 151 and is connected to the water-cooled base 16; the second connecting flange 156 is in a semi-circular ring shape, the second connecting flange 156 is connected to the bottom of the second collection cylinder body 153, the first connecting flange 155 fits with the second connecting flange 156, and the second connecting flange 156 is connected to the water-cooled base 16; the cover plate 157 is simultaneously fastened to the top of the first collection cylinder body 151 and the top of the second collection cylinder body 153; the connecting portion 158 is connected to the cover plate 157 and the connecting portion 158 simultaneously fits with the inner walls of the first collection cylinder body 151 and the second collection cylinder body 153; wherein, the clamping groove 152 and the clamping portion 154 are in an interference fit.

[0048] The clamping groove 152 is arranged on the side wall end face of the first collecting cylinder body 151, the clamping part 154 is connected to the side wall end face of the second collecting cylinder body 153, the clamping part 154 is embedded into the clamping groove 152, and the first collecting cylinder body 151 and the second collecting cylinder body 153 are fitted together, so as to connect the first collecting cylinder body 151 and the second collecting cylinder body 153 together, thereby enabling the first collecting cylinder body 151 and the second collecting cylinder body 153 to form a cylindrical shape; the first connecting flange 155 is connected to the bottom of the first collecting cylinder body 151 by welding, the second connecting flange 156 is connected to the bottom of the second collecting cylinder body 153 by welding, and the first connecting flange 155 and the second connecting flange 156 are simultaneously fixed on the water-cooling base 16, so as to enable the water-cooling base 16 to support the first collecting cylinder body 151 and the second collecting cylinder body 153 respectively through the first connecting flange 155 and the second connecting flange 156, thereby enabling the water-cooling base 16 to move synchronously with the first collecting cylinder body 151 and the second collecting cylinder body 153. The cover plate 157 is simultaneously buckled on the top of the first collecting cylinder body 151 and the top of the second collecting cylinder body 153, so as to enable the cover plate 157 to seal the first collecting cylinder body 151 and the second collecting cylinder body 153 simultaneously; the connecting part 158 is connected to the cover plate 157, the connecting part 158 is simultaneously fitted with the inner walls of the first collecting cylinder body 151 and the second collecting cylinder body 153, and the connecting part 158 and the first collecting cylinder body 151 and the second collecting cylinder body 153 are in interference fit, so as to enable the cover plate 157 to be clamped in the first collecting cylinder body 151 and the second collecting cylinder body 153 through the connecting part 158, thereby improving the stability of the cover plate 157.

[0049] With the above structure, the first collecting cylinder body 151 and the second collecting cylinder body 153 are connected together through the clamping groove 152 and the clamping part 154, so as to enable the first collecting cylinder body 151 and the second collecting cylinder body 153 to be used as a whole, thereby enabling high-purity beryllium materials to be adsorbed on the inner walls of the first collecting cylinder body 151 and the second collecting cylinder body 153; since the first collecting cylinder body 151 and the second collecting cylinder body 153 are connected together through the clamping part 154 and the clamping groove 152, the first collecting cylinder body 151 and the second collecting cylinder body 153 can be separated, so as to facilitate the collection and cleaning of the high-purity beryllium materials adsorbed on the inner walls of the first collecting cylinder body 151 and the second collecting cylinder body 153, thereby improving the use experience of the product.

[0050] Specifically, the collecting plate 20 is installed on the connecting part 158.

[0051] In the embodiment of the present invention, as Figure 1 and Figure 2As shown, the vacuum distillation furnace further includes: a mechanical pump 25, an electromagnetic differential pressure valve 26, an electromagnetic side extraction valve 27, an electromagnetic baffle valve 28, a support frame 29, a molecular pump 30, and an inflation valve 31; the mechanical pump 25 is installed outside the workbench 10; the input end of the electromagnetic differential pressure valve 26 is connected to the output end of the mechanical pump 25; the electromagnetic side extraction valve 27 is installed on the outer wall of the lower vacuum chamber 21, and the input end of the electromagnetic side extraction valve 27 is connected to the output end of the electromagnetic differential pressure valve 26; the input end of the electromagnetic baffle valve 28 is connected to the output end of the electromagnetic differential pressure valve 26; the support frame 29 is fixed to the ground and is located outside the workbench 10; the molecular pump 30 is installed on the support frame 29, the input end of the molecular pump 30 is connected to the output end of the electromagnetic baffle valve 28, and the output end of the molecular pump 30 is connected to the lower vacuum chamber 21; the inflation valve 31 is installed on the outer wall of the lower vacuum chamber 21, the output end of the inflation valve 31 is connected to the lower vacuum chamber 21, and the input end of the inflation valve 31 is connected to a gas source.

[0052] By installing the mechanical pump 25 outside the workbench 10 and connecting the input end of the electromagnetic differential pressure valve 26 to the output end of the mechanical pump 25, the electromagnetic differential pressure valve 26 can control the opening or closing of the mechanical pump 25; by installing the electromagnetic disk extraction valve on the outer wall of the upper vacuum chamber 22 and connecting the input end of the electromagnetic side extraction valve 27 to the output end of the electromagnetic differential pressure valve 26, the upper vacuum chamber 22 can support the electromagnetic side extraction valve 27, so that when the electromagnetic differential pressure valve 26 is opened, the electromagnetic side extraction valve 27 can control whether the mechanical pump 25 is connected to the upper vacuum chamber 22; by fixing the support frame 29 to the ground and installing the molecular pump 30 on the support frame 29, the support frame 29 can support the molecular pump 30, thereby improving the stability of the molecular pump 30; by connecting the input end of the electromagnetic baffle valve 28 to the output end of the electromagnetic differential pressure valve 26, connecting the input end of the molecular pump 30 to the output end of the electromagnetic baffle valve 28, and connecting the output end of the molecular pump 30 to the lower vacuum chamber 21, the electromagnetic baffle valve 28 can control whether the electromagnetic differential pressure valve 26 is connected to the molecular pump 30, so that the lower vacuum chamber 21 can be evacuated by the molecular pump 30. By installing the inflation valve 31 on the outer wall of the lower vacuum chamber 21, connecting the output end of the inflation valve 31 to the lower vacuum chamber 21, and connecting the input end of the inflation valve 31 to a gas source, the inflation valve 31 can control whether the gas source is connected to the lower vacuum chamber 21, so that the gas source can inject gas into the lower vacuum chamber 21 to relieve the vacuum state of the lower vacuum chamber 21.

[0053] With the above structure, by opening the electromagnetic differential pressure valve 26, the electromagnetic baffle valve 28, and the electromagnetic bypass pump valve 27, the molecular pump 30 and the mechanical pump 25 can form a vacuum unit, so as to evacuate the interiors of the combined upper vacuum chamber 22 and lower vacuum chamber 21, and thus obtain the working vacuum and ultimate vacuum environment required for the distillation of beryllium metal materials; moreover, by installing the electromagnetic bypass pump valve 27 on the outer wall of the lower vacuum chamber 21 and connecting the electromagnetic bypass pump valve 27 to the mechanical pump 25, when preparing to replace the beryllium metal material, it is not necessary to stop the molecular pump 30, so that the molecular pump 30 can pre-evacuate the lower vacuum chamber 21, thereby improving the working efficiency of the product.

[0054] In an embodiment of the present invention, as Figure 1 and Figure 10 shown, the vacuum distillation furnace further includes: an ionization gauge 32, a resistance gauge 33, a gate 34, a through hole 35, a baffle body 36, and an electric push rod 37; the ionization gauge 32 is installed on the outer wall of the lower vacuum chamber 21, and the input end of the ionization gauge 32 is embedded in the lower vacuum chamber 21; the resistance gauge 33 is installed on the outer wall of the lower vacuum chamber 21, and the input end of the resistance gauge 33 is embedded in the lower vacuum chamber 21; a receiving groove is provided in the gate 34, and the gate 34 is simultaneously connected to the molecular pump 30 and the outer wall of the lower vacuum chamber 21; the through hole 35 is provided in the gate 34, the through hole 35 is simultaneously connected to the output end of the molecular pump 30 and the lower vacuum chamber 21, and the through hole 35 is connected to the receiving groove; the baffle body 36 is embedded in the receiving groove; the electric push rod 37 is installed outside the gate 34, and the electric push rod 37 is connected to the baffle body 36.

[0055] By installing the ionization gauge and the resistance gauge 33 on the outer wall of the lower vacuum chamber 21 and embedding the input ends of the ionization gauge 32 and the resistance gauge 33 in the lower vacuum chamber 21, the lower vacuum chamber 21 supports the ionization gauge 32 and the resistance gauge 33, so as to detect the vacuum degree inside the lower vacuum chamber 21 by the ionization gauge 32 and the resistance gauge 33; by connecting the gate 34 to the molecular pump 30 and the outer wall of the lower vacuum chamber 21 simultaneously, providing the through hole 35 in the gate 34, and making the through hole 35 connected to the output end of the molecular pump 30 and the lower vacuum chamber 21 simultaneously, the lower vacuum chamber 21 and the molecular pump 30 support the gate 34, so that the molecular pump 30 is connected to the lower vacuum chamber 21 through the through hole 35. By embedding the baffle body 36 in the receiving groove, installing the electric push rod 37 outside the gate 34, and connecting the electric push rod 37 to the baffle body 36, the gate 34 supports the electric push rod 37, so that the electric push rod 37 can drive the baffle body 36 to move in the receiving groove, and further control the area of the baffle body 36 embedded in the through hole 35 to control the flow rate of the molecular pump 30.

[0056] In an embodiment of the present invention, as Figure 4 and Figure 8 shown, the vacuum distillation furnace further includes: a shielding cover 38, a third connecting flange 39, a fourth connecting flange 40, a first sealing ring, a second sealing ring, and a third sealing ring; the shielding cover 38 is connected to the bottom of the water-cooled base 16, and the shielding cover 38 is wound around the outside of the heating furnace 12; the third connecting flange 39 is sleeved on the outside of the top of the lower vacuum chamber 21; the fourth connecting flange 40 is sleeved on the outside of the bottom of the upper vacuum chamber 22, and the fourth connecting flange 40 is connected to the third connecting flange 39; the first sealing ring is an elastomer, and the first sealing ring is simultaneously embedded in the third connecting flange 39 and the fourth connecting flange 40; the second sealing ring is an oxygen-free copper ring, and the second sealing ring is simultaneously in contact with the ionization gauge 32 and the upper vacuum chamber 22; the third sealing ring is an oxygen-free copper ring, and the third sealing ring is simultaneously in contact with the resistance gauge 33 and the upper vacuum chamber 22.

[0057] By connecting the shielding cover 38 to the bottom of the water-cooled base 16 and winding the shielding cover 38 around the outside of the heating furnace 12, the water-cooled base 16 supports the shielding cover 38, so that the shielding cover 38 shields the heating furnace 12, avoiding heat dissipation from the opening of the heating furnace 12, and further avoiding heat loss, thereby improving the user experience of the product. By sleeving the third connecting flange 39 on the outside of the top of the lower vacuum chamber 21, sleeving the fourth connecting flange 40 on the outside of the upper vacuum bottom plate, and connecting the fourth connecting flange to the third connecting flange 39, the upper vacuum chamber 22 and the lower vacuum chamber 21 are connected together through the third connecting flange 39 and the fourth connecting flange 40, thereby reducing the difficulty of connecting the upper vacuum chamber 22 and the lower vacuum chamber 21. By simultaneously embedding the first sealing ring in the third connecting flange 39 and the fourth connecting flange 40, the gap between the third connecting flange 39 and the fourth connecting flange 40 is sealed, thereby improving the sealing performance of the product; by simultaneously bringing the second sealing ring into contact with the ionization gauge 32 and the upper vacuum chamber 22, the gap between the ionization gauge 32 and the upper vacuum chamber 22 is sealed, further improving the sealing performance of the product; by simultaneously bringing the third sealing ring into contact with the resistance gauge 33 and the upper vacuum chamber 22, the gap between the resistance gauge 33 and the upper vacuum chamber 22 is sealed, further improving the sealing performance of the product; Specifically, the first sealing ring is a fluororubber sealing ring.

[0058] In the description of the present invention, the term "a plurality of" means two or more, unless otherwise clearly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention; the terms "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the description of the present invention, the descriptions of terms such as "an embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0060] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A vacuum distillation furnace, characterized in that, The vacuum distillation furnace includes: A workbench, which is a hollow cavity; A mounting base, which is mounted on the top of the workbench; A heating furnace, which is a hollow cavity with an opening at the top, and the heating furnace is mounted on the mounting base; A crucible, which is a hollow cavity with an opening at the top, the crucible is mounted inside the heating furnace, the crucible is located in the upper part of the heating furnace, and the opening of the crucible is communicated with the opening of the heating furnace; An electric heating component, which is mounted inside the heating furnace, and the electric heating component is wound around the outside of the crucible; A collection cylinder assembly, which is a hollow cavity with an opening at the bottom, the collection cylinder assembly is located above the heating furnace, and the opening of the collection cylinder assembly is communicated with the opening of the heating furnace; A water-cooled base, which is a hollow cavity with an opening at the bottom, a cooling channel is arranged inside the water-cooled base, the collection cylinder assembly is embedded inside the water-cooled base, and the water-cooled base is connected to the collection cylinder assembly; A magnetic conduction cylinder assembly, which is a hollow cavity with an opening at the bottom, the magnetic conduction cylinder assembly is wound around the outside of the water-cooled base, and the magnetic conduction cylinder assembly is connected to the water-cooled base; A lower magnet, which is annular, the lower magnet is wound around the outside of the water-cooled base, and the lower magnet is embedded inside the magnetic conduction cylinder assembly; An upper magnet, which is conical, the upper magnet is located inside the magnetic conduction cylinder assembly, the upper magnet is mounted on the top of the magnetic conduction cylinder assembly, and the upper magnet is attached to the top of the water-cooled base; A collection plate, which is a ferromagnetic body, the collection plate is located inside the collection cylinder assembly, the collection plate is mounted on the top of the collection cylinder assembly, and the collection plate is opposite to the upper magnet; A lower vacuum chamber, which is a hollow cavity with openings at both the upper and lower ends, the lower vacuum chamber is mounted on the workbench, the lower vacuum chamber is wound around the outside of the mounting base and the heating furnace, and at least part of the magnetic conduction cylinder assembly is located inside the lower vacuum chamber; An upper vacuum chamber, which is a hollow cavity with an opening at the bottom, the upper vacuum chamber is placed on the lower vacuum chamber, the opening of the upper vacuum chamber is communicated with the opening of the lower vacuum chamber, the magnetic conduction cylinder assembly is located inside the upper vacuum chamber, and the upper vacuum chamber is connected to the magnetic conduction cylinder assembly; A water pipe assembly, at least two water pipe assemblies pass through the top of the upper vacuum chamber, and at least two water pipe assemblies are simultaneously communicated with the cooling channel of the water-cooled base; A lifting mechanism, which is mounted on the workbench, and the lifting mechanism is connected to the upper vacuum chamber.

2. A vacuum distillation furnace according to claim 1, characterized in that, The electric heating component includes: A first heating belt, which is mounted inside the heating furnace, and the first heating belt is wound around the outside of the crucible; A second heating belt, which is mounted inside the heating furnace, and the second heating belt is located below the crucible; The first heating electrode, one end of the first heating electrode is electrically connected to the first heating belt, the other end of the first heating electrode passes through the bottom of the heating furnace, and the other end of the first heating electrode is installed in the mounting base; The second heating electrode, one end of the second heating electrode is electrically connected to the second heating belt, the other end of the second heating electrode passes through the bottom of the heating furnace, and the other end of the second heating electrode is installed in the mounting base; The first temperature measuring thermocouple, one end of the first temperature measuring thermocouple is electrically connected to the first heating belt, the other end of the first temperature measuring thermocouple passes through the bottom of the heating furnace, and the other end of the first temperature measuring thermocouple is installed in the mounting base; The second temperature measuring thermocouple, one end of the second temperature measuring thermocouple is electrically connected to the second heating belt, the other end of the second temperature measuring thermocouple passes through the bottom of the heating furnace, and the other end of the second temperature measuring thermocouple is installed in the mounting base.

3. A vacuum distillation furnace according to claim 2, characterized in that, The electric heating assembly further includes: The side heat insulation shielding layer, the side heat insulation shielding layer is installed in the heating furnace, and the side heat insulation shielding layer is wound around the outer sides of the first heating belt and the second heating belt; The lower heat insulation shielding layer, the lower heat insulation shielding layer is installed in the heating furnace, and the lower heat insulation shielding layer is located below the second heating belt.

4. A vacuum distillation furnace according to claim 3, wherein, The magnetic conduction cylinder assembly includes: The magnetic conduction bottom plate, the magnetic conduction bottom is annular, the magnetic conduction bottom plate is wound around the outer side of the water-cooled base, the magnetic conduction bottom plate is connected to the water-cooled base, and the lower magnet is installed on the magnetic conduction bottom plate; The magnetic conduction cylinder body, the magnetic conduction cylinder body is a hollow cavity with openings at both ends, the magnetic conduction cylinder body is wound around the outer side of the water-cooled base, the bottom opening of the magnetic conduction cylinder body is connected to the magnetic conduction bottom plate, and the magnetic conduction cylinder body is embedded in the lower magnet; The magnetic conduction top plate, the magnetic conduction top plate covers the top opening of the magnetic conduction cylinder body, the magnetic conduction top plate is connected to the magnetic conduction cylinder body, the upper magnet is installed at the bottom of the magnetic conduction top plate, and the magnetic conduction top plate is connected to the top of the upper vacuum chamber; Wherein, the outer surfaces of the magnetic conduction bottom plate, the magnetic conduction cylinder body and the magnetic conduction cylinder body are nickel-plated.

5. A vacuum distillation furnace according to claim 4, wherein The water pipe assembly includes: The first cooling water pipe, one end of the first cooling water pipe passes through the top of the upper vacuum chamber, and the first cooling water pipe is installed at the top of the upper vacuum chamber; The corrugated pipe, the corrugated pipe is located in the upper vacuum chamber, and one end of the corrugated pipe is communicated with one end of the first cooling water pipe; The second cooling water pipe, one end of the second cooling water pipe is communicated with the other end of the corrugated pipe, the other end of the second cooling water pipe passes out of the upper vacuum chamber, and the other end of the second cooling water pipe is communicated with the cooling channel of the water-cooled base.

6. A vacuum distillation furnace according to claim 1, characterized in that, The lifting mechanism includes: The driving device, the driving device is located in the workbench, and the driving device is installed at the bottom of the workbench; The lead screw, an external thread is provided on the outer wall of the lead screw, the lead screw is located in the workbench, and the lead screw is connected to the output end of the driving device; Lifting nut, an internal thread is provided inside the lifting nut, and the lifting nut is sleeved outside the lead screw; Lifting cylinder, the lifting cylinder is a hollow cavity with an opening at the bottom, the bottom of the lifting cylinder is connected to the lifting nut, the lead screw is embedded in the lifting cylinder, and the lifting cylinder passes through the top of the workbench; Connecting frame, the connecting frame is sleeved outside the lifting cylinder, the connecting frame is located above the workbench, and the connecting frame is connected to the upper vacuum chamber; First set screw, at least two first set screws pass through the connecting frame, and at least two first set screws are in contact with the lifting cylinder; Support clamp, the support clamp is sleeved outside the lifting cylinder, and the support clamp is in contact with the bottom of the connecting frame; Second set screw, at least two second set screws pass through the support clamp, and at least two second set screws are in contact with the lifting cylinder; Guide cylinder, the guide cylinder is a hollow cavity with openings at both the upper and lower ends, the guide cylinder is fixed on the workbench, and the lifting cylinder passes through the guide cylinder; Wherein, the external thread is adapted to the internal thread.

7. A vacuum distillation furnace according to claim 6, characterized in that, The collection cylinder assembly includes: First collection cylinder body, the first collection cylinder body is in a semi-cylindrical shape; Clamping groove, the clamping groove is arranged on the side wall end face of the first collection cylinder body; Second collection cylinder body, the second collection cylinder body is in a semi-cylindrical shape, and the second collection cylinder body is in contact with the first collection cylinder body; Clamping part, the clamping part is connected to the side wall end face of the second collection cylinder body, and the clamping part is embedded in the clamping groove; First connecting flange, the first connecting flange is in a semi-circular ring shape, the first connecting flange is connected to the bottom of the first collection cylinder body, and the first connecting flange is connected to the water-cooled base; Second connecting flange, the second connecting flange is in a semi-circular ring shape, the second connecting flange is connected to the bottom of the second collection cylinder body, the first connecting flange is in contact with the second connecting flange, and the second connecting flange is connected to the water-cooled base; Cover plate, the cover plate is simultaneously buckled on the top of the first collection cylinder body and the top of the second collection cylinder body; Connecting part, the connecting part is connected to the cover plate, and the connecting part is in contact with the inner wall of the first collection cylinder body and the inner wall of the second collection cylinder body; Wherein, the clamping groove and the clamping part are in an interference fit.

8. A vacuum distillation furnace according to claim 1, characterized in that, The vacuum distillation furnace further includes: Mechanical pump, the mechanical pump is installed outside the workbench; Electromagnetic differential pressure valve, the input end of the electromagnetic differential pressure valve is communicated with the output end of the mechanical pump; Electromagnetic bypass pump valve, the electromagnetic bypass pump valve is installed on the outer wall of the lower vacuum chamber, and the input end of the electromagnetic bypass pump valve is communicated with the output end of the electromagnetic differential pressure valve; Electromagnetic baffle valve, the input end of the electromagnetic baffle valve is communicated with the output end of the electromagnetic differential pressure valve; Support frame, the support frame is fixed on the ground, and the support frame is located outside the workbench; A molecular pump, which is installed on the support frame. The input end of the molecular pump is communicated with the output end of the electromagnetic baffle valve, and the output end of the molecular pump is communicated with the lower vacuum chamber; An inflation valve, which is installed on the outer wall of the lower vacuum chamber. The output end of the inflation valve is communicated with the lower vacuum chamber, and the input end of the inflation valve is communicated with a gas source.

9. A vacuum distillation furnace according to claim 8, characterized in that, The vacuum distillation furnace further includes: An ionization gauge, which is installed on the outer wall of the lower vacuum chamber, and the input end of the ionization gauge is embedded into the lower vacuum chamber; A resistance gauge, which is installed on the outer wall of the lower vacuum chamber, and the input end of the resistance gauge is embedded into the lower vacuum chamber; A gate plate, in which a receiving groove is provided. The gate plate is simultaneously connected to the molecular pump and the outer wall of the lower vacuum chamber; A through hole, which is provided in the gate plate. The through hole is simultaneously communicated with the output end of the molecular pump and the lower vacuum chamber, and the through hole is communicated with the receiving groove; A baffle body, which is embedded into the receiving groove; An electric push rod, which is installed on the outer side of the gate plate, and the electric push rod is connected to the baffle body.

10. A vacuum distillation furnace according to claim 9, characterized in that, The vacuum distillation furnace further includes: A shielding cover, which is connected to the bottom of the water-cooled base, and the shielding cover is wound around the outside of the heating furnace; A third connecting flange, which is sleeved on the outside of the top of the lower vacuum chamber; A fourth connecting flange, which is sleeved on the outside of the bottom of the upper vacuum chamber, and the fourth connecting flange is connected to the third connecting flange; A first sealing ring, which is an elastomer. The first sealing ring is simultaneously embedded into the third connecting flange and the fourth connecting flange; A second sealing ring, which is an oxygen-free copper ring body. The second sealing ring is simultaneously in contact with the ionization gauge and the upper vacuum chamber; A third sealing ring, which is an oxygen-free copper ring body. The third sealing ring is simultaneously in contact with the resistance gauge and the upper vacuum chamber.

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