A vacuum distillation furnace

Abstract

The invention provides a vacuum distillation furnace, belonging 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 component, a collecting tube component, a water-cooled base, a magnetic tube component, a lower magnet, an upper magnet, a collecting plate, a lower vacuum chamber, an upper vacuum chamber, a water pipe component and a lifting mechanism; by mounting the magnetic tube component on the outside of the water-cooled base, embedding the collecting tube component into the water-cooled base, and making the opening of the collecting tube component communicate with the opening of the heating furnace, when the beryllium metal raw material is heated, the vaporized beryllium metal raw material can enter the collecting tube component, 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 collecting tube component, and the running trajectory of ferromagnetic impurities is deviated and adsorbed by the collecting plate, thereby separating the beryllium material from the ferromagnetic impurities.

Description

Technical Field

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

[0002] In the related art, when purifying metals, the metal materials are usually distilled through a vacuum distillation furnace to obtain high-purity metals.

[0003] Prior art (Chinese invention patent, authorization publication number: CN108570564B) discloses a vacuum distillation furnace, wherein a reflux cylinder extending upward from bottom to top is provided within the vacuum furnace body, the inlet and outlet of the reflux cylinder being respectively arranged in a first cavity and a second cavity, the cylinder wall of the reflux cylinder being provided with a reflux tray for distilling metal vapor, a heating device for heating the metal liquid being provided in the first cavity, and a condensing device for collecting the distilled metal liquid being provided in the second cavity. Using this device, the heating device in the first cavity heats the metal liquid, the metal vapor is distilled through the reflux tray of the reflux cylinder, and the distilled metal vapor is collected through the condensing device provided in the second cavity. A vacuum suction device performs vacuum suction on the vacuum furnace body. This device heats the metal liquid into metal vapor, and distills the metal vapor through the reflux cylinder to achieve distillation and purification of the metal. Furthermore, the device does not require an exhaust gas treatment device, and its structure is simple and easy to implement.

[0004] In the prior art, when the beryllium metal material and the metal material with lower magnetic properties are purified by the device, the beryllium metal material cannot be separated from the ferromagnetic impurities, thereby reducing the effect of distillation purification. Summary of the Invention

[0005] To address the problem in the prior art of separating beryllium metal from ferromagnetic impurities, which reduces the effectiveness of distillation and purification, the present invention provides a vacuum distillation furnace that applies a magnetic field around the evaporation channel of the beryllium metal raw material, thereby allowing the high-purity beryllium material to be adsorbed on the sidewalls of the collection cylinder assembly and causing the trajectory of the ferromagnetic impurities to deviate and be adsorbed by the collection plate, thereby separating the beryllium material from the ferromagnetic impurities and improving the effectiveness of distillation and purification of the beryllium metal raw material. The specific technical solution is as follows:

[0006] A vacuum distillation furnace, comprising: a workbench, a mounting base, a heating furnace, a crucible, an electric heating assembly, a collecting tube assembly, a water-cooling base, a magnetic tube assembly, a lower magnet, an upper magnet, a collecting 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, and the crucible is mounted in the heating furnace, and the crucible is located at the upper part of the heating furnace, and the opening of the crucible is aligned with the heating furnace. The openings of the heating furnace are connected; the electric heating assembly is installed in the heating furnace, and the electric heating assembly is wound around the outside of the crucible; the collecting tube assembly is a hollow cavity with an opening at the bottom, the collecting tube assembly is located above the heating furnace, and the opening of the collecting tube assembly is connected to the opening of the heating furnace; the water-cooled base is a hollow cavity with an opening at the bottom, a cooling channel is provided in the water-cooled base, the collecting tube assembly is embedded in the water-cooled base, and the water-cooled base is connected to the collecting tube assembly; the magnetic tube assembly is a hollow cavity with an opening at the bottom, the magnetic tube assembly is wound around the outside of the water-cooled base, and the magnetic tube The 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 tube assembly; the upper magnet is conical, the upper magnet is located in the magnetic tube assembly, the upper magnet is installed on the top of the magnetic tube assembly, and the upper magnet is in contact with the top of the water-cooled base; the collecting plate is ferromagnetic, the collecting plate is located in the collecting tube assembly, the collecting plate is installed on the top of the collecting tube assembly, and the collecting plate is opposite to the upper magnet; the lower vacuum chamber is a hollow cavity with openings at the upper and lower ends, the lower vacuum chamber is installed on the workbench, and the lower vacuum chamber is wound around the installation The outer side of the mounting base and the heating furnace, and at least part of the magnetic 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 connected to the opening of the lower vacuum chamber, the magnetic cylinder assembly is located in the upper vacuum chamber, and the upper vacuum chamber is connected to the magnetic 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 installed on the workbench, and the lifting mechanism is connected to the upper vacuum chamber.

[0007] In addition, the vacuum distillation furnace in the above technical solution provided by the present invention may also have the following additional technical features:

[0008] In the above technical solution, the electric heating assembly includes: a first heating belt, a second heating belt, a first heating electrode, a second heating electrode, a first temperature measuring thermocouple and a second temperature measuring thermocouple; the first heating belt is installed in the heating furnace, and the first heating belt is wrapped around the outside of the crucible; the second heating belt is installed in the heating furnace, and the second heating belt is located below the crucible; 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; 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; 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; 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.

[0009] In the above technical solution, the electric heating component also includes: a side thermal insulation shielding layer and a lower thermal insulation shielding layer; the side thermal insulation shielding layer is installed in the heating furnace, and the side thermal insulation shielding layer is wound around the outside of the first heating belt and the second heating belt; the lower thermal insulation shielding layer is installed in the heating furnace, and the lower thermal insulation shielding layer is located below the second heating belt.

[0010] In the above technical solution, the magnetic cylinder assembly includes: a magnetic bottom plate, a magnetic cylinder body and a magnetic top plate; the magnetic bottom plate is annular, the magnetic bottom plate is wound around the outside of the water-cooled base, the magnetic bottom plate is connected to the water-cooled base, and the lower magnet is installed on the magnetic bottom plate; the magnetic cylinder body is a hollow cavity with openings at both ends, the magnetic cylinder body is wound around the outside of the water-cooled base, the bottom opening of the magnetic cylinder body is connected to the magnetic bottom plate, and the magnetic cylinder body is embedded in the lower magnet; the magnetic top plate cover is provided at the top opening of the magnetic cylinder body, the magnetic top plate is connected to the magnetic cylinder body, the upper magnet is installed on the bottom of the magnetic top plate, and the magnetic top plate is connected to the top of the upper vacuum chamber; wherein, the outer surfaces of the magnetic bottom plate, the magnetic cylinder body and the magnetic cylinder body are nickel-plated.

[0011] In the above technical solution, the water pipe assembly includes: a first cooling water pipe, a bellows, 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 on the top of the upper vacuum chamber; the bellows is located in the upper vacuum chamber, and one end of the bellows is connected to one end of the first cooling water pipe; one end of the second cooling water pipe is connected to the other end of the bellows, the other end of the second cooling water pipe passes through the upper vacuum chamber, and the other end of the second cooling water pipe is connected to the cooling channel of the water-cooled base.

[0012] 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 top screw, a support clamp, a second top screw and a guide cylinder; the driving device is located in the workbench, and the driving device 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 in the workbench, and the lead screw is connected to the output end of the driving device; an internal thread is provided in the lifting nut, and the lifting nut is sleeved on the outside of 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 in the lifting cylinder, and the lifting cylinder passes through the workbench The top of the workbench; the connecting frame is sleeved on the outside of 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 top screws pass through the connecting frame, and at least two first top screws fit with the lifting cylinder; the support clamp is sleeved on the outside of the lifting cylinder, and the support clamp fits with the bottom of the connecting frame; at least two second top screws pass through the support clamp, and at least two second top screws fit with the lifting cylinder; the guide cylinder is a hollow cavity with openings at both 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.

[0013] In the above technical solution, the collecting cylinder assembly includes: a first collecting cylinder body, a clamping groove, a second collecting cylinder body, a clamping portion, a first connecting flange, a second connecting flange, a cover plate and a connecting portion; the first collecting cylinder body is semi-cylindrical; the clamping groove is arranged on the side wall end face of the first collecting cylinder body; the second collecting cylinder body is semi-cylindrical, and the second collecting cylinder body fits the first collecting cylinder body; the clamping portion is connected to the side wall end face of the second collecting cylinder body, and the clamping portion is embedded in the clamping groove; the first connecting flange is semi-annular, the first connecting flange is connected to the bottom of the first collecting cylinder body, and the first connecting flange is connected to the water-cooled base; the second connecting flange is semi-annular, the second connecting flange is connected to the bottom of the second collecting cylinder body, the first connecting flange fits the second connecting flange, and the second connecting flange is connected to the water-cooled base; the cover plate is simultaneously buckled on the top of the first collecting cylinder body and the top of the second collecting cylinder body; the connecting portion is connected to the cover plate, and the connecting portion fits the inner walls of the first collecting cylinder body and the second collecting cylinder body at the same time; wherein the clamping groove and the clamping portion are over-fit.

[0014] In the above technical scheme, the vacuum distillation furnace also includes: a mechanical pump, an electromagnetic pressure differential valve, an electromagnetic bypass valve, an electromagnetic baffle valve, a support frame, a molecular pump and an inflation valve; the mechanical pump is installed on the outside of the workbench; the input end of the electromagnetic pressure differential valve is connected to the output end of the mechanical pump; the electromagnetic bypass valve is installed on the outer wall of the lower vacuum chamber, and the input end of the electromagnetic bypass valve is connected to the output end of the electromagnetic pressure differential valve; the input end of the electromagnetic baffle valve is connected to the output end of the electromagnetic pressure differential valve; the support frame is fixed on the ground, and the support frame is located on the outside of the workbench; the molecular pump is installed on the support frame, and the input end of the molecular pump is connected to the output end of the electromagnetic baffle valve, and the output end of the molecular pump is connected to 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 connected to the lower vacuum chamber, and the input end of the inflation valve is connected to the gas source.

[0015] In the above technical solution, the vacuum distillation furnace also includes: an ionization gauge, a resistance gauge, a gate plate, 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 plate, and the gate plate is connected to the molecular pump and the outer wall of the lower vacuum chamber at the same time; the through hole is provided in the gate plate, and the through hole is connected to the output end of the molecular pump and the lower vacuum chamber at the same time, and the through hole is connected to the receiving groove; the baffle body is embedded in the receiving groove; the electric push rod is installed on the outside of the gate plate, and the electric push rod is connected to the baffle body.

[0016] In the above technical solution, the vacuum distillation furnace also 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 the shielding cover is wrapped around the outside of the heating furnace; the third connecting flange is mounted on the outside of the top of the lower vacuum chamber; the fourth connecting flange is mounted on the outside of 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 embedded in the third connecting flange and the fourth connecting flange at the same time; the second sealing ring is an oxygen-free copper ring, and the second sealing ring is simultaneously fitted with the ionization gauge and the upper vacuum chamber; the third sealing ring is an oxygen-free copper ring, and the third sealing ring is simultaneously fitted with the resistance gauge and the upper vacuum chamber.

[0017] Compared with the prior art, the vacuum distillation furnace of the present invention has the following beneficial effects:

[0018] 1. By locating the heating furnace in the lower vacuum chamber and the magnetic 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 cylinder assembly are in a vacuum environment, thereby reducing the distillation temperature of beryllium metal and improving the efficiency of beryllium metal distillation separation, thereby enhancing the user experience of the product. By installing the upper magnet on the top of the magnetic cylinder assembly and the lower magnet on the bottom of the magnetic cylinder assembly, the upper magnet, the lower magnet and the magnetic cylinder assembly can form a magnetic field. Compared with using only the upper magnet and the lower magnet, the magnetism of the magnetic field can be increased, further improving the user experience of the product; at the same time, by installing the magnetic cylinder assembly on the outside of the water-cooled base, the collecting cylinder assembly is embedded in the water-cooled base, and the opening of the collecting cylinder assembly is connected to the opening of the heating furnace, so that when the beryllium metal raw material is heated, the vaporized beryllium metal raw material can enter the collecting cylinder assembly, 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 collecting cylinder assembly, and the running trajectory of the ferromagnetic impurities is offset and adsorbed by the collecting plate, thereby separating the beryllium material from the ferromagnetic impurities, thereby improving the effect of distillation and purification of the beryllium metal raw material.

[0019] 2. The first heating belt is installed in the heating furnace and wound around the outside of the crucible, so that the heating furnace supports the first heating belt. When the first heating belt is powered on, the first heating belt heats the crucible and the beryllium metal raw material in the crucible. The second heating belt is installed in the heating furnace and located below the crucible, so that the heating furnace supports the second heating belt. The second heating belt can heat the bottom of the crucible, thereby improving the heating efficiency of the beryllium metal raw material in the crucible.

[0020] 3. By installing the lower thermal insulation shielding layer in the heating furnace and locating the lower thermal insulation shielding layer below the second heating zone, the heating furnace can install the lower thermal insulation shielding layer, thereby realizing that the lower thermal insulation shielding layer insulates the lower part of the second heating zone to avoid heat dissipation, and then the lower thermal insulation shielding layer and the side thermal insulation shielding layer cooperate to avoid heat loss inside the heating furnace, thereby improving the product usage experience.

[0021] 4. By installing the lower magnet on the magnetic base plate, installing the upper magnet on the magnetic top plate, and connecting the magnetic base plate, magnetic cylinder, and magnetic top plate in sequence, the lower magnet, magnetic base plate, magnetic cylinder, magnetic top, and upper magnet can form a magnetic field. Compared with the magnetic field formed by the upper and lower magnets, the magnetic force of the magnetic field formed by the lower magnet, magnetic base plate, magnetic cylinder, magnetic top, and upper magnet is greater, thereby improving the user experience of the product.

[0022] 5. By connecting one end of the bellows to one end of the first cooling water pipe, the other end of the bellows to one end of the second cooling water pipe, and the other end of the second cooling water pipe to the cooling channel of the water-cooled base, the first cooling water pipe, the bellows, 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 bellows, and the second cooling water pipe. At the same time, the elasticity of the bellows 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 installation in the water pipe assembly and improving the product user experience.

[0023] 6. When preparing to move the upper vacuum chamber up or down, activate the drive mechanism, causing the lead screw to rotate, which in turn drives the lifting nut and lifting cylinder up or down. The lifting cylinder then drives the upper vacuum chamber up or down via the connecting frame to adjust the height of the upper vacuum chamber. Because the connecting frame and support clamp fit over the outside of the lifting cylinder, they can move up and down along the lifting cylinder, adjusting the connection position between the upper vacuum chamber and the lifting cylinder. This simplifies the connection and improves the user experience. Because 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 within the guide cylinder, allowing the upper and lower vacuum chambers to intersect. This facilitates the placement of beryllium metal raw material into the crucible and the removal of the collection cylinder assembly from the water-cooled base, further enhancing the user experience.

[0024] 7. The first collecting cylinder and the second collecting cylinder are connected together by the snap-fitting groove and the snap-fitting portion, so that the first collecting cylinder and the second collecting cylinder can be used as a whole, thereby enabling high-purity beryllium material to be adsorbed on the inner walls of the first collecting cylinder and the second collecting cylinder; since the first collecting cylinder and the second collecting cylinder are connected together by the snap-fitting portion and the snap-fitting groove, the first collecting cylinder and the second collecting cylinder can be separated, thereby facilitating the collection and cleaning of the high-purity beryllium material adsorbed on the inner walls of the first collecting cylinder and the second collecting cylinder, thereby improving the user experience of the product.

[0025] 8. By opening the electromagnetic pressure differential valve, electromagnetic baffle valve and electromagnetic bypass valve, a molecular pump and a mechanical pump can be combined to form a vacuum unit, thereby evacuating the interior of the combined upper vacuum chamber and lower vacuum chamber, thereby obtaining the working vacuum and ultimate vacuum environment required for the distillation of beryllium metal materials; in addition, by installing an electromagnetic bypass valve on the outer wall of the lower vacuum chamber and connecting the electromagnetic bypass valve to the mechanical pump, it is possible to prepare to replace the beryllium metal material without stopping the molecular pump, thereby enabling the molecular pump to pre-evacuate the lower vacuum chamber, thereby improving the working efficiency of the product.

[0026] 9. By embedding the baffle body into the receiving groove, installing the electric push rod on the outside of the gate, and connecting the electric push rod to the baffle body, the gate supports the electric push rod, so that the electric push rod can drive the baffle body to move in the receiving groove, and then control the area of the baffle body embedded in the through hole to control the flow rate of the molecular pump.

[0027] 10. By connecting the shield cover to the bottom of the water-cooled base and wrapping it around the outside of the heating furnace, the water-cooled base supports the shield cover, which in turn shields the heating furnace, preventing heat dissipation from the furnace opening and, in turn, preventing heat loss, thereby improving the product's user experience. By fitting the third connecting flange onto the outside of the top of the lower vacuum chamber, fitting the fourth connecting flange onto the outside of the upper vacuum base plate, and connecting the fourth connecting flange to the third connecting flange, the upper and lower vacuum chambers are connected together via the third and fourth connecting flanges, simplifying the connection between the upper and lower vacuum chambers. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a perspective view of a vacuum distillation furnace according to the present invention;

[0029] Figure 2 This is a second perspective view of a vacuum distillation furnace of the present invention;

[0030] Figure 3 is a cross-sectional view of a vacuum distillation furnace of the present invention;

[0031] Figure 4 for Figure 3 A local enlarged view of point A;

[0032] Figure 5 for Figure 3 A partial enlarged view of point B;

[0033] Figure 6 is a cross-sectional view of the upper vacuum chamber and the lower vacuum chamber of the present invention;

[0034] Figure 7 for Figure 6 A partial enlarged view of point C;

[0035] Figure 8 A perspective view of the upper vacuum chamber, the lower vacuum chamber, and the lifting mechanism of the present invention;

[0036] Figure 9 is a perspective view of the collecting barrel assembly of the present invention;

[0037] Figure 10 It is a three-dimensional diagram of the gate and the electric push rod;

[0038] in, Figures 1 to 10 The corresponding relationship between the reference numerals and component names is as follows:

[0039] 10 workbench, 11 mounting base, 12 heating furnace, 13 crucible, 14 electric heating assembly, 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 insulation shielding layer, 148 lower insulation shielding layer, 15 collecting cylinder assembly, 151 first collecting cylinder, 152 clamping groove, 153 second collecting cylinder, 154 clamping part, 155 first connecting flange, 156 second connecting flange, 157 cover plate, 158 connecting part, 16 water cooling base, 17 magnetic cylinder assembly, 171 magnetic bottom plate, 172 magnetic cylinder, 173 magnetic top plate, 18 lower magnet, 19 upper magnet, 2 0 collecting 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 jackscrew, 247 supporting clamp, 248 second jackscrew, 249 guide cylinder, 25 mechanical pump, 26 electromagnetic pressure differential valve, 27 electromagnetic bypass valve, 28 electromagnetic baffle valve, 29 supporting frame, 30 molecular pump, 31 charging valve, 32 ionization gauge, 33 resistance gauge, 34 gate, 35 through hole, 36 baffle body, 37 electric push rod, 38 shielding cover, 39 third connecting flange, 40 fourth connecting flange. DETAILED DESCRIPTION

[0040] The following is a combination of specific implementation cases and attached Figures 1 to 10 The present invention is further described below, but the present invention is not limited to these embodiments.

[0041] A vacuum distillation furnace, such as Figures 1 to 6As shown, the vacuum distillation furnace includes: a workbench 10, a mounting base 11, a heating furnace 12, a crucible 13, an electric heating assembly 14, a collecting tube assembly 15, a water-cooled base 16, a magnetic tube assembly 17, a lower magnet 18, an upper magnet 19, a collecting 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 mounted 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 mounted on the mounting base 11; the crucible 13 is a hollow cavity with an opening at the top, and the crucible 13 is mounted in the heating furnace 12, and the crucible 13 is located at the upper part of the heating furnace 12, and the crucible 13 The opening is connected to 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 collecting tube component 15 is a hollow cavity with an opening at the bottom, the collecting tube component 15 is located above the heating furnace 12, and the opening of the collecting tube component 15 is connected to 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 provided in the water-cooled base 16, the collecting tube component 15 is embedded in the water-cooled base 16, and the water-cooled base 16 is connected to the collecting tube component 15; the magnetic tube component 17 is a hollow cavity with an opening at the bottom, the magnetic tube component 17 is wound around the outside of the water-cooled base 16, and the magnetic tube component 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 tube assembly 17; the upper magnet 19 is conical, the upper magnet 19 is located in the magnetic tube assembly 17, the upper magnet 19 is installed on the top of the magnetic tube assembly 17, and the upper magnet 19 is in contact with the top of the water-cooled base 16; the collecting plate 20 is ferromagnetic, the collecting plate 20 is located in the collecting tube assembly 15, the collecting plate 20 is installed on the top of the collecting tube assembly 15, and the collecting plate 20 is opposite to the upper magnet 19; the lower vacuum chamber 21 is a hollow cavity with openings at the upper and lower ends, the lower vacuum chamber 21 is installed on the workbench 10, and the lower vacuum chamber 21 is wound around It is located on the outside of the mounting base 11 and the heating furnace 12, and at least part of the magnetic tube 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 connected to the opening of the lower vacuum chamber 21, the magnetic tube assembly 17 is located in the upper vacuum chamber 22, and the upper vacuum chamber 22 is connected to the magnetic tube 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.

[0042] 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 in the heating furnace 12, the crucible 13 is located at the upper part of the heating furnace 12, and the opening of the crucible 13 is connected to the opening of the heating furnace 12, so that the heating furnace 12 can accommodate and support the crucible 13, so that the staff can heat the opening of the furnace 12 to put the beryllium metal raw material into the crucible 13, and then the crucible 13 can accommodate the beryllium metal raw material; by installing the electric heating component 14 in the heating furnace 12, and the electric heating component 14 is wound around the outside of the crucible 13, so that 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 material in the crucible 13. By locating the collecting tube assembly 15 above the heating furnace 12 and making the opening of the collecting tube assembly 15 communicate with the opening of the heating furnace 12, it is realized that when the electric heating assembly 14 heats the beryllium metal raw material in the crucible 13, the gas generated by the beryllium metal raw material can enter the collecting tube assembly 15 through the opening of the crucible 13, the opening of the heating furnace 12 and the opening of the collecting tube assembly 15; by embedding the collecting tube assembly 15 into the water-cooled base 16 and connecting the water-cooled base 16 to the collecting tube assembly 15, so as to realize that the water-cooled base 16 and the collecting tube assembly 15 are connected together, so that the water-cooled base 16 can accommodate the collecting tube assembly 15; by winding the magnetic tube assembly 17 around the outside of the water-cooled base 16 and connecting the magnetic tube assembly 17 to the water-cooled base 16, so as to realize that the collecting tube assembly 15 can be The cylinder assembly 15, the water-cooled base 16 and the magnetic cylinder assembly 17 are connected as a whole; the lower magnet 18 in an annular shape is wound around the outside of the water-cooled base 16, the lower magnet 18 is installed at the bottom of the magnetic cylinder assembly 17, the upper magnet 19 is installed at the top of the magnetic cylinder assembly 17, and the upper magnet 19 is fit with the top of the water-cooled base 16, so that the magnetic 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 cylinder assembly 17 can form a magnetic field; the collecting plate 20 is located in the collecting cylinder assembly 15, the collecting plate 20 is installed on the top of the collecting cylinder assembly 15, and the collecting plate 20 is opposite to the upper magnet 19, so that the collecting cylinder assembly 15 supports the collecting plate 20, so that the collecting plate 20 has a certain magnetism.By fixing the lower vacuum chamber 21 on the workbench 10 and surrounding the lower vacuum chamber 21 on 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 connecting the opening of the upper vacuum chamber 22 with the opening of the lower vacuum chamber 21, the lower vacuum chamber 21 can support the upper vacuum chamber 22, thereby connecting the interior of the lower vacuum chamber 21 with the interior of the upper vacuum chamber 22; the upper vacuum chamber 22 is connected to the magnetic cylinder assembly 17, so that the upper vacuum chamber 22 supports the magnetic cylinder assembly 17 , so that the upper vacuum chamber 22 can drive the magnetic tube assembly 17, the water-cooling base 16 and the collecting tube 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 connected to the cooling channel of the water-cooling base 16 at the same time, so that cooling water can be injected into the water-cooling base 16 through the water pipe assembly 23, so that the water-cooling base 16 cools the collecting tube assembly 15; by installing the lifting mechanism 24 on the workbench 10, and connecting the lifting mechanism 24 to the upper vacuum chamber 22, so that the workbench 10 supports the lifting mechanism 24, so that the lifting mechanism 24 can drive the upper vacuum chamber 22 to move up and down.

[0043] When the product is used, the beryllium metal raw material is first poured into the crucible 13, and the crucible 13 is placed in the heating furnace 12; at this time, the upper vacuum chamber 22 is placed in the lower vacuum chamber 21; then, the interior of the lower vacuum chamber 21 is evacuated, so that the interiors of the upper vacuum chamber 22 and the lower vacuum chamber 21 are in a vacuum state; then, the electric heating component 14 is powered on, so that the electric heating component 14 heats the crucible 13 and the beryllium metal raw material in the crucible 13, so that the beryllium metal raw material vaporizes and moves upward into the collecting tube component 15; When the beryllium metal raw material enters the collecting cylinder assembly 15, the beryllium metal raw material will be quickly liquefied, thereby distilling the beryllium metal raw material, and then the high-purity beryllium material can be adsorbed on the side wall of the collecting cylinder assembly 15; since the lower magnet 18, the magnetic cylinder assembly 17 and the upper magnet 19 can form a magnetic field, and the collecting plate 20 opposite to the upper magnet 19 has a certain magnetism, it can be adsorbed on the beryllium metal raw material. A magnetic field is applied around the evaporation channel of the metal raw material, thereby causing the trajectory of the ferromagnetic impurities in the evaporation process to deviate, and then the ferromagnetic impurities are adsorbed by the collecting plate 20 to complete the distillation and purification of the beryllium metal raw material; after the distillation and purification of the beryllium metal raw material is completed, the power supply to the electric heating component 14 is stopped, the evacuation of the lower vacuum chamber 21 is stopped, and air is injected into the lower vacuum chamber 21 to release the vacuum state in the lower vacuum chamber 21 and the upper vacuum chamber 22; then, the lifting mechanism 24 is started, so that the lifting mechanism 24 drives the upper vacuum chamber 22 to move. The empty chamber 22, the magnetic cylinder assembly, the water-cooled base 16 and the collecting cylinder assembly 15 move upward, thereby separating the upper vacuum chamber 22 from the lower vacuum chamber 21; when the upper vacuum chamber 22 moves upward to a predetermined height, the collecting cylinder assembly 15 is removed from the magnetic cylinder assembly 17, and the collecting cylinder assembly 15 is pulled out of the magnetic cylinder assembly 17, thereby collecting the high-purity beryllium material adsorbed on the side wall of the collecting cylinder assembly 15; thereafter, the staff can put the beryllium metal raw material into the crucible 13 to facilitate distillation and purification of the beryllium metal raw material again.

[0044] By adopting the above structure, the heating furnace 12 is located in the lower vacuum chamber 21, the magnetic cylinder assembly 17 is located in the upper vacuum chamber 22, and the interior of the upper vacuum chamber 22 is connected with the interior of the lower vacuum chamber 21, so that when the interior of the lower vacuum chamber 21 is evacuated, the heating furnace 12 and the magnetic cylinder assembly 17 are in a vacuum environment, thereby reducing the distillation temperature of beryllium metal and improving the efficiency of distillation and separation of beryllium metal, thereby improving the user experience of the product. By installing the upper magnet 19 on the top of the magnetic cylinder assembly 17 and the lower magnet 18 on the bottom of the magnetic cylinder assembly 17, the upper magnet 19, the lower magnet 18 and the magnetic cylinder assembly 17 can form a magnetic field. Compared with using only the upper magnet 19 and the lower magnet 18, the magnetism of the magnetic field can be increased, further improving the user experience of the product; at the same time, by installing the magnetic cylinder assembly 17 on the outside of the water-cooled base 16, the collecting cylinder assembly 15 is embedded in the water-cooled base 16, and the opening of the collecting cylinder assembly 15 is connected to the opening of the heating furnace 12, so that when the beryllium metal raw material is heated, the vaporized beryllium metal raw material can enter the collecting 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 collecting cylinder assembly 15, and the running trajectory of the ferromagnetic impurities is deviated and adsorbed by the collecting plate 20, thereby separating the beryllium material from the ferromagnetic impurities, thereby improving the effect of distillation and purification of the beryllium metal raw material.

[0045] 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 reduce the temperature inside the heating furnace 12.

[0046] 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 passivated by sandblasting.

[0047] In an embodiment of the present invention, Figures 5 to 7As shown, the electric heating assembly 14 includes: a first heating belt 141, a second heating belt 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 belt 141 is installed in the heating furnace 12, and the first heating belt 141 is wound around the outside of the crucible 13; the second heating belt 142 is installed in the heating furnace 12, and the second heating belt 142 is located below the crucible 13; one end of the first heating electrode 143 is electrically connected to the first heating belt 141, and 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 belt 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 belt 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 belt 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.

[0048] By installing the first heating belt 141 in 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 in the crucible 13; by installing the second heating belt 142 in 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, thereby improving the heating efficiency of the beryllium metal raw material in 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 in the mounting base 11, so that the mounting base 11 supports the first heating electrode 143, thereby enabling the power supply to 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 in the mounting base 11, so that the mounting base 11 supports the second heating electrode 144, thereby enabling the power supply to 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 in the mounting base 11, the mounting base 11 can support the first temperature measuring thermocouple 145, thereby enabling the first temperature measuring thermocouple 145 to measure the temperature of the first heating belt 141, thereby facilitating precise control of the heating temperature of the first heating belt 141, thereby improving the user experience of the product; 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 in the mounting base 11, thereby enabling the mounting base 11 to support the second temperature measuring thermocouple 146, thereby enabling the second temperature measuring thermocouple 146 to measure the temperature of the second heating belt 142, thereby facilitating precise control of the heating temperature of the second heating belt 142, thereby improving the user experience of the product.

[0049] Specifically, the first heating belt 141 and the second heating belt 142 are metal tantalum heating belts; the first temperature measuring thermocouple 145 and the second temperature measuring thermocouple 146 are tungsten rhenium thermocouples, and the first temperature measuring thermocouple 145 and the second temperature measuring thermocouple 146 are both installed with boron nitride insulating sleeves on their exteriors.

[0050] In an embodiment of the present invention, Figures 5 to 7As shown, the electric heating component 14 also includes: a side thermal insulation shielding layer 147 and a lower thermal insulation shielding layer 148; the side thermal insulation shielding layer 147 is installed in the heating furnace 12, and the side thermal insulation shielding layer 147 is wound around the outside of the first heating belt 141 and the second heating belt 142; the lower thermal insulation shielding layer 148 is installed in the heating furnace 12, and the lower thermal insulation shielding layer 148 is located below the second heating belt 142.

[0051] By embedding the side thermal insulation shielding layer 147 into the heating furnace 12 and wrapping the side thermal insulation shielding layer 147 around the outside of the first heating belt 141 and the second heating belt 142, the side thermal insulation shielding layer 147 insulates the sides of the first heating belt 141 and the second heating belt 142, thereby preventing heat dissipation and improving the user experience of the product. By installing the lower thermal insulation shielding layer 148 in the heating furnace 12 and positioning the lower thermal insulation shielding layer 148 below the second heating belt 142, the heating furnace 12 installs the lower thermal insulation shielding layer 148, thereby preventing heat dissipation and achieving the cooperation between the lower thermal insulation shielding layer 148 and the side thermal insulation shielding layer 147 to prevent heat loss inside the heating furnace 12, thereby improving the user experience of the product.

[0052] Specifically, the side thermal insulation shielding layer 147 is a 7-layer molybdenum thermal insulation reflective shielding layer, and the lower thermal insulation shielding layer 148 is a 7-layer molybdenum thermal insulation reflective shielding layer.

[0053] In an embodiment of the present invention, Figure 4 and Figure 5 As shown, the magnetic cylinder assembly 17 includes: a magnetic bottom plate 171, a magnetic cylinder body 172 and a magnetic top plate; the magnetic bottom is annular, the magnetic bottom plate 171 is wound around the outside of the water-cooled base 16, the magnetic bottom plate 171 is connected to the water-cooled base 16, and the lower magnet 18 is installed on the magnetic bottom plate 171; the magnetic cylinder body 172 is a hollow cavity with openings at both ends, the magnetic cylinder body 172 is wound around the outside of the water-cooled base 16, and the magnetic cylinder body 17 2 is connected to the magnetic bottom plate 171, and the magnetic cylinder 172 is embedded in the lower magnet 18; the magnetic top plate cover is provided at the top opening of the magnetic cylinder 172, the magnetic top plate is connected to the magnetic cylinder 172, the upper magnet 19 is installed at the bottom of the magnetic top plate, and the magnetic top plate is connected to the top of the upper vacuum chamber 22; wherein, the outer surfaces of the magnetic bottom plate 171, the magnetic cylinder 172 and the magnetic cylinder 172 are nickel-plated.

[0054] By winding the annular magnetic bottom around the outside of the water-cooled base 16, connecting the magnetic bottom plate 171 to the water-cooled base 16, and installing the lower magnet 18 on the magnetic bottom, the water-cooled base 16 supports the magnetic bottom plate 171, thereby achieving synchronous movement of the water-cooled base 16 and the magnetic bottom plate 171, and further achieving the support of the lower magnet 18 by the magnetic bottom; by welding the bottom opening of the magnetic cylinder 172 to the magnetic bottom plate 171, and winding the magnetic cylinder 172 around the outside of the water-cooled base 16, so as to achieve the magnetic bottom plate 171 supporting the magnetic cylinder 172 is supported, so that the magnetic cylinder 172 can accommodate the water-cooled base 16; the magnetic top 173 is covered on the top opening of the magnetic cylinder 172 by welding, the upper magnet 19 is installed at the bottom of the magnetic top 173, and the magnetic top 173 is connected to the top of the upper vacuum chamber 22 to realize the connection between the magnetic top plate and the magnetic cylinder 172, so that the upper vacuum chamber 22 can drive the magnetic top plate, the magnetic cylinder 172 and the magnetic bottom plate 171 to move up and down, and at the same time, the magnetic top 173 can also support the upper magnet 19.

[0055] By adopting the above structure, the lower magnet 18 is installed on the magnetic conductive bottom plate 171, the upper magnet 19 is installed on the magnetic conductive top plate, and the magnetic conductive bottom plate 171, the magnetic conductive cylinder 172 and the magnetic conductive top 173 are connected together in sequence, so that 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 can form a magnetic field. 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, thereby improving the user experience of the product.

[0056] In an embodiment of the present invention, Figure 6 As shown, the water pipe assembly 23 includes: a first cooling water pipe 231, a bellows 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 bellows 232 is located in the upper vacuum chamber 22, and one end of the bellows 232 is connected to one end of the first cooling water pipe 231; one end of the second cooling water pipe 233 is connected to the other end of the bellows 232, the other end of the second cooling water pipe 233 passes through the upper vacuum chamber 22, and the other end of the second cooling water pipe 233 is connected to the cooling channel of the water-cooled base 16.

[0057] 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 can support 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 water cooling pipe 233, the first cooling water pipe 231 can be connected to the water cooling pipe 233. The cooling channels of the base 16 are connected to connect the first cooling water pipe 231, the bellows 232 and the second cooling water pipe 233, so that the 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 elasticity of the bellows 232 can be used to adapt the distance between the water-cooled base 16 and the top of the upper vacuum chamber 22, thereby reducing the difficulty of installation in the water pipe assembly 23 and improving the product experience.

[0058] In an embodiment of the present invention, Figure 1 and Figure 8 As 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 top screw 246, a support clamp 247, a second top 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 on the outside of 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 Passing through the top of the workbench 10; the connecting frame 245 is mounted on the outside of 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 top screws 246 pass through the connecting frame 245, and at least two first top screws 246 fit with the lifting cylinder 244; the support clamp 247 is mounted on the outside of the lifting cylinder 244, and the support clamp 247 fits with the bottom of the connecting frame 245; at least two second top screws 248 pass through the support clamp 247, and at least two second top screws 248 fit with the lifting cylinder 244; the guide cylinder 249 is a hollow cavity with openings at both 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.

[0059] By installing the driving device 241 at the bottom of the workbench 10, the screw 242 is located in the workbench 10, and the screw 242 is connected to the output end of the driving device 241, so that the driving device 241 can drive the screw 242 to rotate in the workbench 10, thereby providing power for rotating the screw 242; by sleeved on the outside of the screw 242, the bottom of the lifting cylinder 244 is connected to the lifting nut 243, so that the screw 242 and the lifting nut 243 are threadedly connected, thereby rotating the screw 242, so that the screw 242 drives the lifting nut 243 and the lifting cylinder 244 to move up and down; by embedding the screw 242 into the lifting cylinder 244, and making the lifting cylinder 244 pass through the top of the workbench 10, so as to realize the lifting cylinder 2 44 pairs of lead screws 242 are accommodated, thereby reducing the space occupied by the product to improve the user experience of the product; by sleeved on the outside of the lifting cylinder 244, the connecting frame 245 is connected to the upper vacuum chamber 22, at least two first top screws 246 are passed through the connecting frame 245, and at least two first top screws 246 are fitted with the lifting cylinder 244, so as to fix the connecting frame 245 on the outside of the lifting cylinder 244 through multiple first top screws 246, and connect the connecting frame 245 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, thereby controlling the merging or separation of the upper vacuum chamber 22 and the lower vacuum chamber 21. By putting the support clamp 247 on the outside of the lifting cylinder 244, fitting the support clamp 247 with the bottom of the connecting frame 245, passing at least two second top screws 248 through the support clamp 247, and fitting at least two second top screws 248 with the lifting cylinder 244, the support clamp 247 can be fixed to the outside of the lifting cylinder 244 through multiple second top screws 248, thereby supporting the connecting frame 245 through the support clamp 247, thereby improving the stability of the connecting frame 245; by fixing the guide cylinder 249 on the workbench 10, and passing the lifting cylinder 244 through the guide cylinder 249, so that the guide cylinder 249 guides the lifting cylinder 244, thereby preventing the lifting cylinder 244 from deviating when moving up and down, thereby improving the stability of the lifting cylinder 244 and the upper vacuum chamber 22 when moving up and down.

[0060] With the above structure, when the upper vacuum chamber 22 is ready to be moved up and down, the driving device 241 is activated, causing the driving device 241 to rotate the lead screw 242, thereby causing the lead screw 242 to drive the lifting nut 243 and the lifting cylinder 244 to move up and down, and then the lifting cylinder 244 drives the upper vacuum chamber 22 up and down through the connecting frame 245 to adjust the height of the upper vacuum chamber 22. Because the connecting frame 245 and the support clamp 247 are mounted on the outside of 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, thereby reducing the difficulty of connecting the upper vacuum chamber 22 and the lifting cylinder 244 and improving 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 guide cylinder 249, the lifting cylinder 244 can rotate in the guide cylinder 249, thereby realizing the staggering of the upper vacuum chamber 22 and the lower vacuum chamber 21, so that the staff can put the beryllium metal raw material into the crucible 13, and it is convenient for the staff to remove the collecting cylinder assembly 15 from the water-cooled base 16, further improving the product's user experience.

[0061] In an embodiment of the present invention, Figure 9 As shown, the collecting cylinder assembly 15 includes: a first collecting cylinder 151, a clamping groove 152, a second collecting cylinder 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 collecting cylinder 151 is semi-cylindrical; the clamping groove 152 is provided on the side wall end face of the first collecting cylinder 151; the second collecting cylinder 153 is semi-cylindrical, and the second collecting cylinder 153 is fitted with the first collecting cylinder 151; the clamping portion 154 is connected to the side wall end face of the second collecting cylinder 153, and the clamping portion 154 is embedded in the clamping groove 152; the first connecting flange 155 is semi-annular, and the first connecting flange 155 is connected to the first collecting cylinder The bottom of the body 151 is connected, and the first connecting flange 155 is connected to the water-cooled base 16; the second connecting flange 156 is semi-annular, and the second connecting flange 156 is connected to the bottom of the second collecting cylinder 153, the first connecting flange 155 and the second connecting flange 156 are in fits, and the second connecting flange 156 is connected to the water-cooled base 16; the cover plate 157 is simultaneously buckled on the top of the first collecting cylinder 151 and the top of the second collecting cylinder 153; the connecting part 158 is connected to the cover plate 157, and the connecting part 158 is simultaneously in fits with the inner walls of the first collecting cylinder 151 and the second collecting cylinder 153; wherein, the snap-fit groove 152 and the snap-fit part 154 are over-fit.

[0062] The clamping groove 152 is provided on the side wall end face of the first collecting cylinder 151, the clamping portion 154 is connected to the side wall end face of the second collecting cylinder 153, the clamping portion 154 is embedded in the clamping groove 152, and the first collecting cylinder 151 and the second collecting cylinder 153 are fitted together to realize the connection between the first collecting cylinder 151 and the second collecting cylinder 153, so that the first collecting cylinder 151 and the second collecting cylinder 153 can be surrounded into a cylindrical shape; the first connecting flange 155 is connected to the second collecting cylinder 153 by welding. The bottom of a collecting cylinder 151 is connected, the second connecting flange 156 is connected to the bottom of the second collecting cylinder 153 by welding, and the first connecting flange 155 and the second connecting flange 156 are fixed on the water-cooled base 16 at the same time, so that the water-cooled base 16 supports the first collecting cylinder 151 and the second collecting cylinder 153 through the first connecting flange 155 and the second connecting flange 156 respectively, thereby realizing the synchronous movement of the water-cooled base 16 and the first collecting cylinder 151 and the second collecting cylinder 153. By simultaneously buckling the cover 157 on the top of the first collecting cylinder 151 and the top of the second collecting cylinder 153, the cover 157 can simultaneously seal the first collecting cylinder 151 and the second collecting cylinder 153; by connecting the connecting part 158 to the cover 157, the connecting part 158 is simultaneously fitted with the inner walls of the first collecting cylinder 151 and the second collecting cylinder 153, and the connecting part 158 and the first collecting cylinder 151 and the second collecting cylinder 153 are interference fit, so that the cover 157 can be clamped in the first collecting cylinder 151 and the second collecting cylinder 153 through the connecting part 158, thereby improving the stability of the cover 157.

[0063] With the above structure, the first collecting cylinder 151 and the second collecting cylinder 153 are connected together through the snap-fitting groove 152 and the snap-fitting portion 154, so that the first collecting cylinder 151 and the second collecting cylinder 153 can be used as a whole, thereby achieving that high-purity beryllium material can be adsorbed on the inner walls of the first collecting cylinder 151 and the second collecting cylinder 153; since the first collecting cylinder 151 and the second collecting cylinder 153 are connected together through the snap-fitting portion 154 and the snap-fitting groove 152, the first collecting cylinder 151 and the second collecting cylinder 153 can be separated, thereby facilitating the collection and cleaning of the high-purity beryllium material adsorbed on the inner walls of the first collecting cylinder 151 and the second collecting cylinder 153, thereby improving the user experience of the product.

[0064] Specifically, the collecting plate 20 is mounted on the connecting portion 158 .

[0065] In an embodiment of the present invention, Figure 1 and Figure 2As shown, the vacuum distillation furnace also includes: a mechanical pump 25, an electromagnetic pressure differential valve 26, an electromagnetic bypass valve 27, an electromagnetic baffle valve 28, a support frame 29, a molecular pump 30 and an air charging valve 31; the mechanical pump 25 is installed on the outside of the workbench 10; the input end of the electromagnetic pressure differential valve 26 is connected to the output end of the mechanical pump 25; the electromagnetic bypass valve 27 is installed on the outer wall of the lower vacuum chamber 21, and the input end of the electromagnetic bypass valve 27 is connected to the output end of the electromagnetic pressure differential valve 26; the input end of the electromagnetic baffle valve 28 is connected to the The output end of the electromagnetic pressure differential valve 26 is connected; the support frame 29 is fixed on the ground, and the support frame 29 is located on the outside of the workbench 10; the molecular pump 30 is installed on the support frame 29, and 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 the gas source.

[0066] By installing the mechanical pump 25 on the outside of the workbench 10, and connecting the input end of the electromagnetic pressure differential valve 26 with the output end of the mechanical pump 25, the electromagnetic pressure differential valve 26 can control the opening or closing of the mechanical pump 25; by installing the electromagnetic bypass valve on the outer wall of the upper vacuum chamber 22, and connecting the input end of the electromagnetic bypass valve 27 with the output end of the electromagnetic pressure differential valve 26, the upper vacuum chamber 22 supports the electromagnetic bypass valve 27, so that when the electromagnetic pressure differential valve 26 is opened, the electromagnetic bypass valve 27 controls whether the mechanical pump 25 is connected to the upper vacuum chamber 22; The support frame 29 is fixed on the ground, and the molecular pump 30 is installed on the support frame 29, so that the support frame 29 supports the molecular pump 30, thereby improving the stability of the molecular pump 30; by connecting the input end of the electromagnetic baffle valve 28 with the output end of the electromagnetic pressure differential valve 26, 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, so that the electromagnetic baffle valve 28 can control whether the electromagnetic pressure differential valve 26 and the molecular pump 30 are connected, thereby realizing vacuuming the lower vacuum chamber 21 through the molecular pump 30. By installing the inflation valve 31 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 the gas source, so that the inflation valve 31 can control whether the gas source and the lower vacuum chamber 21 are connected, so that the gas source can inject gas into the lower vacuum chamber 21 to release the vacuum state of the lower vacuum chamber 21.

[0067] By adopting the above structure, the electromagnetic pressure differential valve 26, the electromagnetic baffle valve 28 and the electromagnetic bypass valve 27 are opened to enable the molecular pump 30 and the mechanical pump 25 to form a vacuum unit, thereby evacuating the interior of the combined upper vacuum chamber 22 and the lower vacuum chamber 21, and thus obtaining the working vacuum and ultimate vacuum environment required for the distillation of beryllium metal materials; moreover, by installing the electromagnetic bypass valve 27 on the outer wall of the lower vacuum chamber 21, and the electromagnetic bypass valve 27 is connected to the mechanical pump 25, it is possible to prepare to replace the beryllium metal material without stopping the molecular pump 30, thereby enabling the molecular pump 30 to pre-vacuum the lower vacuum chamber 21, thereby improving the working efficiency of the product.

[0068] In an embodiment of the present invention, Figure 1 and Figure 10 As shown, the vacuum distillation furnace also includes: an ionization gauge 32, a resistance gauge 33, a gate plate 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 plate 34, and the gate plate 34 is connected to the molecular pump 30 and the outer wall of the lower vacuum chamber 21 at the same time; the through hole 35 is provided in the gate plate 34, and the through hole 35 is connected to the output end of the molecular pump 30 and the lower vacuum chamber 21 at the same time, 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 on the outside of the gate plate 34, and the electric push rod 37 is connected to the baffle body 36.

[0069] By installing the ionization cabinet and the resistance gauge 33 on the outer wall of the lower vacuum chamber 21, and embedding the input end of the ionization gauge 32 and the input end of the resistance gauge 33 into the lower vacuum chamber 21, the lower vacuum chamber 21 supports the ionization gauge 32 and the resistance gauge 33, so that the ionization gauge 32 and the resistance gauge 33 can detect the vacuum degree inside the lower vacuum chamber 21; by connecting the gate plate 34 to the molecular pump 30 and the outer wall of the lower vacuum chamber 21 at the same time, arranging the through hole 35 in the gate plate 34, and making the through hole 35 communicate with the output end of the molecular pump 30 and the lower vacuum chamber 21 at the same time, the lower vacuum chamber 21 and the molecular pump 30 support the gate plate 34, so that the molecular pump 30 can be communicated with the lower vacuum chamber 21 through the through hole 35. By embedding the baffle body 36 into the receiving groove, installing the electric push rod 37 on the outside of the gate plate 34, and connecting the electric push rod 37 to the baffle body 36, the gate plate 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 then control the area of the baffle body 36 embedded in the through hole 35 to control the flow rate of the molecular pump 30.

[0070] In an embodiment of the present invention, Figure 4 and Figure 8 As shown, the vacuum distillation furnace also 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 wrapped around the outside of the heating furnace 12; the third connecting flange 39 is mounted on the outside of the top of the lower vacuum chamber 21; the fourth connecting flange 40 is mounted 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 embedded in the third connecting flange 39 and the fourth connecting flange 40 at the same time; the second sealing ring is an oxygen-free copper ring, and the second sealing ring is simultaneously fitted 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 fitted with the resistance gauge 33 and the upper vacuum chamber 22.

[0071] By connecting the shield cover 38 to the bottom of the water-cooled base 16 and wrapping the shield cover 38 around the outside of the heating furnace 12, the water-cooled base 16 supports the shield cover 38, thereby shielding the heating furnace 12. This prevents heat dissipation from the opening of the heating furnace 12, thereby preventing heat loss and improving the user experience of the product. By fitting the third connecting flange 39 to the outside of the top of the lower vacuum chamber 21, fitting the fourth connecting flange 40 to 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 fitting the second sealing ring to 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, thereby further improving the sealing performance of the product; by simultaneously fitting the third sealing ring to 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, thereby further improving the sealing performance of the product;

[0072] Specifically, the first sealing ring is a fluororubber sealing ring.

[0073] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise expressly defined, the orientations or positional relationships indicated by the terms "upper" and "lower" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connect," "install," and "fix" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] In the description of the present invention, the terms "one embodiment," "some embodiments," "specific embodiments," etc., mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0075] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A vacuum distillation furnace, characterized in that, The vacuum distillation furnace comprises: A workbench, wherein the workbench is a hollow cavity; A mounting base, the mounting base being mounted on the top of the workbench; A heating furnace, the heating furnace being a hollow cavity with an opening at the top, and the heating furnace being mounted on the mounting base; A crucible, wherein the crucible is a hollow cavity with an opening at the top, and the crucible is installed in the heating furnace, the crucible is located at the upper part of the heating furnace, and the opening of the crucible is connected to the opening of the heating furnace; An electric heating component, the electric heating component is installed in the heating furnace and is wound around the outside of the crucible; A collecting cylinder assembly, wherein the collecting cylinder assembly is a hollow cavity with an opening at the bottom, the collecting cylinder assembly is located above the heating furnace, and the opening of the collecting cylinder assembly is connected to the opening of the heating furnace; A water-cooled base, the water-cooled base being a hollow cavity with an opening at the bottom, the water-cooled base being provided with a cooling channel, the collecting cylinder assembly being embedded in the water-cooled base, and the water-cooled base being connected to the collecting cylinder assembly; A magnetic conductive cylinder assembly, wherein the magnetic conductive cylinder assembly is a hollow cavity with an opening at the bottom, and the magnetic conductive cylinder assembly is wound around the outside of the water-cooled base and connected to the water-cooled base; A lower magnet, wherein the lower magnet is annular, is wound around the outside of the water-cooled base, and is embedded in the magnetic cylinder assembly; An upper magnet, the upper magnet being conical in shape, located in the magnetic cylinder assembly, mounted on the top of the magnetic cylinder assembly, and in contact with the top of the water-cooled base; A collecting plate, the collecting plate being a ferromagnetic body, the collecting plate being located in the collecting cylinder assembly, the collecting plate being mounted on the top of the collecting cylinder assembly, and the collecting plate being opposite to the upper magnet; A lower vacuum chamber, the lower vacuum chamber being a hollow cavity with openings at upper and lower ends, the lower vacuum chamber being mounted on the workbench, the lower vacuum chamber being arranged around the mounting base and the outside of the heating furnace, and at least a portion of the magnetic conductive cylinder assembly being located within the lower vacuum chamber; An upper vacuum chamber, wherein 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 connected to the opening of the lower vacuum chamber, the magnetic conductive cylinder assembly is located in the upper vacuum chamber, and the upper vacuum chamber is connected to the magnetic conductive cylinder assembly; Water pipe assemblies, at least two of which pass through the top of the upper vacuum chamber, and at least two of which are simultaneously connected to the cooling channel of the water-cooled base; A lifting mechanism is installed on the workbench and connected to the upper vacuum chamber.

2. A vacuum distillation furnace according to claim 1, characterized in that, The electric heating component comprises: a first heating belt, the first heating belt being installed in the heating furnace and being wound around the outside of the crucible; a second heating belt, the second heating belt being installed in the heating furnace and located below the crucible; a first heating electrode, one end of the first heating electrode being electrically connected to the first heating belt, the other end of the first heating electrode passing through the bottom of the heating furnace, and the other end of the first heating electrode being mounted in the mounting base; a second heating electrode, one end of the second heating electrode being electrically connected to the second heating belt, the other end of the second heating electrode passing through the bottom of the heating furnace, and the other end of the second heating electrode being mounted in the mounting base; a first temperature measuring thermocouple, one end of the first temperature measuring thermocouple being electrically connected to the first heating belt, the other end of the first temperature measuring thermocouple passing through the bottom of the heating furnace, and the other end of the first temperature measuring thermocouple being mounted in the mounting base; A 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 comprises: a side heat-insulating shielding layer, the side heat-insulating shielding layer being installed in the heating furnace and being wound around the outside of the first heating zone and the second heating zone; A lower thermal insulation shielding layer is installed in the heating furnace and is located below the second heating zone.

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

5. A vacuum distillation furnace according to claim 4, characterized in that: The water pipe assembly comprises: a first cooling water pipe, one end of which passes through the top of the upper vacuum chamber, and the first cooling water pipe is installed on the top of the upper vacuum chamber; a bellows, the bellows being located in the upper vacuum chamber, and one end of the bellows being connected to one end of the first cooling water pipe; A second cooling water pipe, one end of the second cooling water pipe is connected to the other end of the bellows, the other end of the second cooling water pipe passes through the upper vacuum chamber, and the other end of the second cooling water pipe is connected to the cooling channel of the water-cooled base.

6. A vacuum distillation furnace according to claim 1, characterized in that: The lifting mechanism comprises: A driving device, the driving device is located in the workbench and is installed at the bottom of the workbench; A lead screw, wherein an external thread is provided on an outer wall of the lead screw, the lead screw is located inside the workbench, and the lead screw is connected to an output end of the driving device; A lifting nut having an internal thread and being sleeved on the outside of the lead screw; A 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; A connecting frame, the connecting frame is sleeved on the outside of the lifting cylinder, the connecting frame is located above the workbench, and the connecting frame is connected to the upper vacuum chamber; First jack screws, at least two of which pass through the connecting frame and fit in with the lifting cylinder; A support clamp, wherein the support clamp is sleeved on the outside of the lifting cylinder and fits the bottom of the connecting frame; Second top screws, at least two of which pass through the support clamp, and at least two of which are in contact with the lifting cylinder; A guide cylinder, which is a hollow cavity with openings at both 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 collecting cylinder assembly comprises: a first collecting cylinder, wherein the first collecting cylinder is semi-cylindrical; A snap-fit groove, the snap-fit groove being provided on the side wall end surface of the first collecting cylinder; a second collecting cylinder, the second collecting cylinder being semi-cylindrical and fitting with the first collecting cylinder; a clamping portion connected to the side wall end surface of the second collecting cylinder and embedded in the clamping groove; a first connecting flange, the first connecting flange being semi-annular and connected to the bottom of the first collecting cylinder, and the first connecting flange being connected to the water-cooling base; a second connecting flange, the second connecting flange being semi-annular and connected to the bottom of the second collecting cylinder, the first connecting flange being in contact with the second connecting flange, and the second connecting flange being connected to the water-cooling base; a cover plate, the cover plate being buckled onto the top of the first collecting cylinder and the top of the second collecting cylinder; a connecting portion connected to the cover plate and in contact with the inner wall of the first collecting cylinder and the inner wall of the second collecting cylinder; Wherein, the clamping groove and the clamping portion are transitionally matched.

8. The vacuum distillation furnace according to claim 1, characterized in that: The vacuum distillation furnace also includes: a mechanical pump, the mechanical pump being installed on the outside of the workbench; an electromagnetic pressure differential valve, wherein an input end of the electromagnetic pressure differential valve is connected to an output end of the mechanical pump; an electromagnetic bypass valve, the electromagnetic bypass valve being mounted on the outer wall of the lower vacuum chamber, the input end of the electromagnetic bypass valve being connected to the output end of the electromagnetic pressure differential valve; an electromagnetic flapper valve, wherein the input end of the electromagnetic flapper valve is connected to the output end of the electromagnetic pressure differential valve; A support frame, the support frame is fixed on the ground and is located outside the workbench; a molecular pump, the molecular pump being mounted on the support frame, the input end of the molecular pump being connected to the output end of the electromagnetic baffle valve, and the output end of the molecular pump being connected to the lower vacuum chamber; An inflation valve is installed on the outer wall of the lower vacuum chamber, an output end of the inflation valve is connected to the lower vacuum chamber, and an input end of the inflation valve is connected to an air source.

9. The vacuum distillation furnace according to claim 8, characterized in that: The vacuum distillation furnace also includes: an ionization gauge, wherein the ionization gauge is mounted on the outer wall of the lower vacuum chamber, and an input end of the ionization gauge is embedded in the lower vacuum chamber; a resistance gauge, the resistance gauge being mounted on an outer wall of the lower vacuum chamber, and an input end of the resistance gauge being embedded in the lower vacuum chamber; a gate plate, wherein a receiving groove is provided in the gate plate, and the gate plate is connected to the molecular pump and the outer wall of the lower vacuum chamber at the same time; a through hole, the through hole being arranged in the gate plate, the through hole being connected to the output end of the molecular pump and the lower vacuum chamber at the same time, and the through hole being connected to the containing tank; a baffle body, the baffle body being embedded in the accommodating groove; An electric push rod is installed on the outside of the gate and is connected to the baffle body.

10. The vacuum distillation furnace according to claim 9, characterized in that: The vacuum distillation furnace also includes: a shielding cover connected to the bottom of the water-cooling base and arranged around the outside of the heating furnace; a third connecting flange, the third connecting flange being sleeved on the outer side of the top of the lower vacuum chamber; a fourth connecting flange, the fourth connecting flange being sleeved on the outer side of the bottom of the upper vacuum chamber and connected to the third connecting flange; a first sealing ring, the first sealing ring being an elastomer and being embedded in both the third connecting flange and the fourth connecting flange; A second sealing ring, the second sealing ring is an oxygen-free copper ring, and the second sealing ring is in contact with the ionization gauge and the upper vacuum chamber at the same time; The third sealing ring is an oxygen-free copper ring, and the third sealing ring is in contact with the resistance gauge and the upper vacuum chamber at the same time.

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