Antimony concentrate vacuum smelting furnace

Abstract

The present invention belongs to the field of vacuum smelting furnaces, and specifically is an antimony concentrate vacuum smelting furnace, comprising a movable sealing box and a fixed sealing box, the bottom of the movable sealing box is connected with two guide rails, a heating furnace is arranged on the inner side of the movable sealing box, the top of the heating furnace is arranged in an open manner, and the opposite sides of the movable sealing box and the fixed sealing box are arranged in an inclined manner. Through this arrangement, the entire heating furnace is wrapped in a hollow environment, and it is only necessary to ensure the connection sealing of the movable sealing box and the fixed sealing box. Since the movable sealing box and the fixed sealing box are far away from the heating furnace, there is no need to consider the heat resistance problem too much. At the same time, due to the distance from the heating furnace, the outer surface temperature of the movable sealing box and the fixed sealing box will not be too high. At the same time, with the arrangement of the docking valve, the molten antimony concentrate can be in a vacuum state throughout the whole process when being poured out, and will not be exposed to the air. The vacuum environment can be used to avoid oxidation and pollution, thereby improving the heat treatment effect.

Description

Technical Field

[0001] The invention belongs to the field of vacuum smelting furnaces, in particular to an antimony concentrate vacuum smelting furnace. Background Art

[0002] Antimony ore refers to minerals containing antimony. There are only 10 antimony minerals with antimony content of more than 20%. Among them, stibnite is the most important mineral raw material for antimony beneficiation. Concentrate is one of the products of sorting operations in mineral processing. It is the part with the highest content of useful target components and is the final product of mineral processing.

[0003] Antimony pyrorefining refers to an antimony refining method in which impurities are removed from crude antimony under molten conditions to produce refined antimony. The impurities in crude antimony generally include arsenic, sulfur, copper, iron, lead, selenium, etc. Preferential oxidation, sulfidation, temperature reduction melting, vacuum distillation and the formation of intermetallic compounds are used to remove the impurities iron, copper, sulfur, lead, arsenic and selenium in crude antimony. The heating process is generally carried out in a vacuum furnace.

[0004] Traditional vacuum furnaces generally only perform vacuum treatment inside the furnace, and then put the antimony concentrate into the furnace for heating, melting and smelting. However, since the furnace body is generally made of high heat-resistant materials such as graphite, its sealing is generally not suitable for direct vacuum treatment. Directly evacuating the inside of the furnace will cause the outer surface temperature of the furnace body to be high, making it difficult to approach the furnace body, and some external equipment is also easily damaged. After the antimony concentrate is refined, it needs to be poured out for cooling, which requires releasing the internal vacuum environment, which can easily cause the antimony metal to be affected by the environment during the cooling process.

[0005] To this end, the present invention provides an antimony concentrate vacuum smelting furnace. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the antimony concentrate vacuum smelting furnace described in the present invention comprises a movable sealing box and a fixed sealing box, the bottom of the movable sealing box is connected with two guide rails, a heating furnace is arranged on the inner side of the movable sealing box, the top of the heating furnace is arranged with an opening, the opposite sides of the movable sealing box and the fixed sealing box are arranged in an inclined shape, one side of the fixed sealing box is connected with a negative pressure suction pipe, the end of the fixed sealing box away from the movable sealing box is fixedly connected with a docking valve, and a swing component is arranged inside the movable sealing box, and the swing component is used to drive the heating furnace to tilt;

[0008] By setting the mobile sealing box and the fixed sealing box, the mobile sealing box can move horizontally on the guide rail. When the mobile sealing box is away from the fixed sealing box, the heating furnace is exposed to the outside, and the antimony concentrate raw material can be directly added to the heating furnace. After the addition is completed, the mobile sealing box is allowed to slide on the guide rail, docked and fixed with the fixed sealing box, and then the inner space of the entire mobile sealing box and the fixed sealing box is vacuumed using a negative pressure suction pipe, and the antimony concentrate inside is heated by the heating furnace. A heating electric coil is provided in the interlayer of the heating furnace. During the heating process, the entire heating furnace can be shaken by a swinging assembly so that the antimony concentrate can be fully melted. After the heating is completed, the external cooling equipment is docked with the docking valve, and the cooling equipment is vacuumed. At this time, the heating furnace is opened. Open the docking valve, and driven by the swing assembly, let the heating furnace tilt toward the docking valve, so that the molten antimony concentrate in the heating furnace can be poured out and received by the external cooling equipment. Through this setting, the entire heating furnace is wrapped in a hollow environment. It is only necessary to ensure the connection and sealing of the mobile sealing box and the fixed sealing box. Since the mobile sealing box and the fixed sealing box are far away from the heating furnace, there is no need to consider the heat resistance problem too much. At the same time, due to the distance from the heating furnace, the outer surface temperature of the mobile sealing box and the fixed sealing box will not be too high. At the same time, with the setting of the docking valve, the molten antimony concentrate can be poured out in a vacuum state throughout the process without contacting the air. The vacuum environment can avoid oxidation and pollution and improve the heat treatment effect.

[0009] Preferably, a second drainage plate is fixedly connected to one end of the top of the heating furnace near the docking valve, and the second drainage plate is arranged in a central concave shape. A first drainage plate is fixedly connected to the intersection of the inner wall of the fixed sealing box and the docking valve. When the heating furnace is tilted, the molten antimony concentrate will be concentrated on the second drainage plate and poured out in an orderly manner. As the antimony concentrate is poured out, it will be received by the first drainage plate, and the first drainage plate will repeatedly transfer it to the external cooling equipment. Through this arrangement, the molten antimony concentrate can be poured out accurately, reducing process errors.

[0010] Preferably, the swing assembly includes a limit platform, which is fixedly connected to the inner bottom of the mobile sealing box, and a connecting seat is fixedly connected to the side of the heating furnace close to the limit platform, and the connecting seat is rotatably connected to the top of the limit platform. Hydraulic rods are provided on both sides of the limit platform, and the bottom of the hydraulic rod is rotatably connected to the mobile sealing box, and the top of the hydraulic rod is connected to the heating furnace. Through the extension and shortening of the two hydraulic rods and the rotational connection between the limit platform and the connecting seat, the heating furnace can only rotate at a certain angle, thereby achieving the effect of pouring out the internal antimony concentrate.

[0011] Preferably, an outer side of the heating furnace is fixedly connected to the top with an outer guard platform, the top of the hydraulic rod is rotatably connected to the bottom of the outer guard platform, and two pillars are fixedly connected to the inner bottom of the mobile sealing box. An adapter hole that penetrates to the bottom is opened on the top surface of the outer guard platform, and the top of the pillar is hemispherical, and the outer side of the pillar is fixedly connected to the top with a disc. The outer guard platform can not only be used to reinforce the periphery of the heating furnace, but also when the heating furnace remains in a horizontal state, the adapter hole of the outer guard platform will be connected to the top of the pillar, and the disc of the pillar will be supported on the bottom of the adapter hole, thereby supporting the entire heating furnace. This arrangement not only ensures the stability of the heating furnace when it is in a horizontal state, but also prevents the bottom of the heating furnace from contacting the bottom of the mobile sealing box, thereby reducing heat transfer to the mobile sealing box and further reducing the impact of heat on external equipment.

[0012] Preferably, a feed seat is fixedly connected to the top of the fixed sealing box, and an addition hole is opened on the top of the feed seat and penetrates to the bottom, and the addition hole is aligned with the top opening of the heating furnace. A first sealing valve and a second sealing valve are installed in the feed seat from top to bottom. In order to ensure that the antimony concentrate is fully heated and melted, the heating process generally adopts a distributed heating method. Specifically, when adding materials to the heating furnace for the first time, a part of the antimony concentrate is first added, and this part of the antimony concentrate is first heated to a molten state, and then the remaining part of the antimony concentrate is added to the heating furnace. In this way, the previously molten antimony concentrate can better transfer heat to the solid antimony concentrate, which is more efficient than pouring all the antimony concentrate into the heating furnace for heating at the same time. It is much faster. At the same time, solid antimony concentrate takes up more space. If all of it is put into the heating furnace, it is easy to not fit in due to uneven spatial distribution. Through the design of the feed seat, when the antimony concentrate put in first has been melted, the first sealing valve is opened first, and the remaining antimony concentrate is put between the first sealing valve and the second sealing valve, and then the first sealing valve is closed, and the space between the first sealing valve and the second sealing valve is evacuated, and then the second sealing valve is opened, so that the remaining antimony concentrate can be poured into the heating furnace, and the whole process will not let outside air enter the heating furnace, ensuring that the whole process of vacuum heating is not disturbed by the external environment. Shaking the heating furnace after adding can further speed up the melting process.

[0013] Preferably, the outer side of the feed seat is fixedly connected with an inclined external sleeve, the inner side of the external sleeve is slidably connected with an inner rod, the top of the inner rod is provided with a traction assembly, the traction assembly is used to control the sliding of the inner rod, the inner bottom of the heating furnace is slidably connected with a lifting seat, the bottom of the inner rod is provided with a connecting assembly, the connecting assembly is used to dock with the lifting seat, in order to pour out all the antimony concentrate in the heating furnace, the heating furnace needs to be tilted to at least ninety degrees, which not only requires the hydraulic rod to be designed to be longer, but also the internal space needs to be designed to be particularly large, resulting in higher equipment costs, and too high a tilt can easily lead to unstable support, causing accidents. Through the setting of the lifting seat, during the tilting process, it is only necessary to tilt the heating furnace It is tilted at 30 degrees. At this time, the inner rod is set parallel to the heating furnace. The traction component is started to sink the inner rod, and the bottom of the inner rod is allowed to contact the top surface of the lifting seat. The inner rod is made of high heat-resistant material as a whole. Then, the inner rod is connected to the lifting seat through the connecting component. Then, as the inner rod rises, the lifting seat can be pulled upward, so that the entire molten antimony concentrate can be pulled upward. The uniformly stretched inner rod allows the molten antimony concentrate to flow out from the second guide plate at a uniform speed. After all the flow out, the inner rod slowly sinks to return the lifting seat to its position. Through this setting, the heating furnace can pour out all the antimony concentrate inside without excessive tilting, reducing the huge safety hazards caused by operational errors. At the same time, the space in the mobile sealing box and the fixed sealing box does not need to be designed to be particularly large, saving costs.

[0014] Preferably, the traction assembly includes a winding box, a servo motor is fixedly connected to the inner side of the winding box, a steel cable is wound and fixedly connected to the outer side of the driving end of the servo motor, and the steel cable is fixedly connected to the top end of the inner rod. When the servo motor slowly releases the steel cable, the inner rod will gradually slide down under the action of gravity and finally contact the lifting seat. After docking with the lifting seat, the servo motor is started to reel in the steel cable, and the inner rod and the lifting seat are pulled upward together, thereby completing the effect of controlling the lifting and lowering of the lifting seat.

[0015] Preferably, the connecting assembly includes two supporting blocks, the bottom of the inner rod is provided with two symmetrically arranged sliding grooves on the outer side, the supporting block is arranged in a fan shape, the supporting block is slidably engaged in the sliding groove, the top of the supporting block is provided with a clamping groove, and the top of the lifting seat is fixedly connected with two symmetrically arranged ground rings, when the inner rod passes through the two ground rings, the two supporting blocks will be squeezed inwardly, and the fan-shaped supporting blocks can slide to allow the inner rod to pass smoothly, and when the inner rod releases the top surface of the lifting seat, the inner rod is quickly pulled up, because the inner rod is located in a viscous antimony concentrate solution, the two supporting blocks will be pulled out during the rapid pulling process, and at the same time, the structural setting of the sliding groove prevents the supporting block from falling out of the sliding groove, and at this time, the two clamping grooves will dock with the two ground rings, so that the inner rod can dock with the two ground rings, thereby completing the effect of controlling the lifting seat to lift.

[0016] Preferably, the rear end of the external sleeve is connected to an exchange barrel, the outer side of the exchange barrel is fixedly connected to an air pump group, the air pump group is communicated with the exchange barrel, the middle part of the inner rod is provided with an air flow groove, and the air flow groove is communicated with the two slide grooves. In order to ensure that the two support blocks can be fully opened, when the inner rod touches the bottom, the air pump group is started, and air pressure is input into the exchange barrel. The air pressure acts on the support blocks through the air flow groove and the slide groove, thereby pushing the two support blocks outward, ensuring that the two support blocks can be fully opened and that the slots can contact the two ground rings. When it is necessary to contact the connection between the inner rod and the ground ring, it is only necessary to put the lifting seat back to its original position first, and then the inner rod touches the bottom so that the support blocks do not contact the ground ring. At this time, the air pump group is started to generate negative pressure, so that the two support blocks are adsorbed inwardly, and the two support blocks are received in the slide groove. In this way, when the inner rod rises, it can be smoothly pulled out, thereby achieving the effect of releasing the connection with the ground ring.

[0017] Preferably, the winding box is fixedly connected to the outer shell of the air pump group, a support platform is connected between the air pump group and the fixed sealing box, a steel pipe is fixedly connected between the exchange barrel and the winding box, the steel cable passes through the exchange barrel and enters the winding box through the steel pipe, and the mutual cooperation and fixation of multiple parts keep the driving source away from the heating area and will not be affected by high temperature.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The antimony concentrate vacuum smelting furnace described in the present invention can move horizontally on the guide rail through the arrangement of the mobile sealing box and the fixed sealing box. When the mobile sealing box is away from the fixed sealing box, the heating furnace is exposed to the outside, and the antimony concentrate raw material can be directly added to the heating furnace. After the addition is completed, the mobile sealing box is allowed to slide on the guide rail, docked and fixed with the fixed sealing box, and then the inner space of the entire mobile sealing box and the fixed sealing box is vacuumed by using a negative pressure suction pipe, and the antimony concentrate inside is heated by the heating furnace. A heating coil is provided in the interlayer of the heating furnace. During the heating process, the entire heating furnace can be shaken by a swinging assembly so that the antimony concentrate can be fully melted. After the heating is completed, the external cooling equipment is docked with the docking valve, and the cooling The equipment is vacuumed, and the docking valve is opened at this time. Driven by the swing component, the heating furnace is tilted toward the docking valve, so that the molten antimony concentrate in the heating furnace is poured out and received by the external cooling equipment. Through this setting, the entire heating furnace is wrapped in a hollow environment. It is only necessary to ensure the connection and sealing of the mobile sealing box and the fixed sealing box. Since the mobile sealing box and the fixed sealing box are far away from the heating furnace, there is no need to consider the heat resistance problem too much. At the same time, due to the distance from the heating furnace, the outer surface temperature of the mobile sealing box and the fixed sealing box will not be too high. At the same time, with the setting of the docking valve, the molten antimony concentrate can be poured out in a vacuum state throughout the process without contacting the air. The vacuum environment can avoid oxidation and pollution and improve the heat treatment effect.

[0020] 2. The antimony concentrate vacuum smelting furnace described in the present invention has a second drain plate and a first drain plate. When the heating furnace is tilted, the molten antimony concentrate will be concentrated on the second drain plate and poured out in an orderly manner. As the antimony concentrate is poured out, it will be received by the first drain plate, and the first drain plate will repeatedly transfer it to an external cooling device. This arrangement can assist in the accurate pouring of the molten antimony concentrate and reduce errors in the pouring process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a stereogram of the present invention;

[0023] Figure 2 is an expanded view of the present invention;

[0024] Figure 3 It is a three-dimensional diagram of the mobile box sealing and heating furnace of the present invention;

[0025] Figure 4 It is a three-dimensional diagram of the feed seat and the heating furnace of the present invention;

[0026] Figure 5 is a cross-sectional view of a heating furnace of the present invention;

[0027] Figure 6 is a cross-sectional view of the external sleeve of the present invention;

[0028] Figure 7 is a cross-sectional view of an end portion of the inner rod of the present invention;

[0029] In the figure: 1. Mobile sealing box; 2. Fixed sealing box; 3. Guide rail; 4. Feed seat; 5. Exchange barrel; 6. Docking valve; 7. Support platform; 8. Air pump group; 9. Heating furnace; 10. Outer protective platform; 11. Limiting platform; 12. Pillar; 13. Hydraulic rod; 14. First sealing valve; 15. Second sealing valve; 16. Drainage plate one; 17. Lifting seat; 18. Ground ring; 19. Steel cable; 20. Winding box; 21. Inner rod; 22. Air flow groove; 23. Support block; 24. Card slot; 25. External sleeve; 26. Connecting seat; 27. Drainage plate two. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] like Figures 1 to 5As shown, an antimony concentrate vacuum smelting furnace according to an embodiment of the present invention comprises a movable sealing box 1 and a fixed sealing box 2, two guide rails 3 are connected to the bottom of the movable sealing box 1, a heating furnace 9 is arranged on the inner side of the movable sealing box 1, the top of the heating furnace 9 is arranged in an open manner, the opposite sides of the movable sealing box 1 and the fixed sealing box 2 are arranged in an inclined shape, a negative pressure suction pipe is connected to one side of the fixed sealing box 2, a docking valve 6 is fixedly connected to one end of the fixed sealing box 2 away from the movable sealing box 1, and a swing component is arranged inside the movable sealing box 1, and the swing component is used to drive the heating furnace 9 to tilt it;

[0032] When working, the traditional vacuum furnace generally only performs vacuum treatment inside the furnace, and then puts the antimony concentrate into the furnace for heating, melting and smelting. However, since the furnace body is generally made of high heat-resistant materials such as graphite, its sealing is generally not suitable for direct vacuum treatment. Moreover, directly vacuuming the inside of the furnace will cause the outer surface temperature of the furnace body to be high, making it difficult to approach the furnace body, and some external equipment is also easily damaged. After the antimony concentrate is refined, it needs to be poured out for cooling, which requires releasing the internal vacuum environment, which easily causes the antimony metal to be affected by the environment during the cooling process.

[0033] By setting the mobile sealed box 1 and the fixed sealed box 2, the mobile sealed box 1 can move horizontally on the guide rail 3. When the mobile sealed box 1 is away from the fixed sealed box 2, the heating furnace 9 is exposed to the outside, and the antimony concentrate raw material can be directly added to the heating furnace 9. After the addition is completed, the mobile sealed box 1 is allowed to slide on the guide rail 3, and is docked and fixed with the fixed sealed box 2. Then, a negative pressure suction pipe is used to evacuate the inner space of the entire mobile sealed box 1 and the fixed sealed box 2, and the antimony concentrate inside is heated by the heating furnace 9. A heating coil is provided in the interlayer of the heating furnace 9. During the heating process, the entire heating furnace 9 can be shaken by a swinging assembly so that the antimony concentrate can be fully melted. After the heating is completed, the external cooling equipment is docked with the docking valve 6, and the cooling equipment is evacuated. When the docking valve 6 is opened, and driven by the swing component, the heating furnace 9 is tilted toward the docking valve 6, so that the molten antimony concentrate in the heating furnace 9 is poured out and received by the external cooling equipment. Through this arrangement, the entire heating furnace 9 is wrapped in a hollow environment. It is only necessary to ensure the connection and sealing of the movable sealing box 1 and the fixed sealing box 2. Since the movable sealing box 1 and the fixed sealing box 2 are far away from the heating furnace 9, there is no need to consider the heat resistance problem too much. At the same time, due to the distance from the heating furnace 9, the outer surface temperature of the movable sealing box 1 and the fixed sealing box 2 will not be too high. At the same time, with the arrangement of the docking valve 6, the molten antimony concentrate can be in a vacuum state throughout the process when being poured out, and will not be exposed to the air. The vacuum environment can avoid oxidation and pollution, thereby improving the heat treatment effect.

[0034] like Figures 1 to 5As shown, a second guide plate 27 is fixedly connected to one end of the top of the heating furnace 9 near the docking valve 6, and the second guide plate 27 is arranged in a central concave shape, and a guide plate 16 is fixedly connected to the intersection of the inner wall of the fixed sealing box 2 and the docking valve 6;

[0035] During operation, when the heating furnace 9 is tilted, the molten antimony concentrate will be concentrated on the drain plate 27 and poured out in an orderly manner. As the antimony concentrate is poured out, it will be received by the drain plate 16, and the drain plate 16 will then transfer it to an external cooling device. Through this setting, the molten antimony concentrate can be poured out accurately and errors in the pouring process can be reduced.

[0036] like Figures 1 to 5 As shown, the swing assembly includes a limit platform 11, which is fixedly connected to the inner bottom of the mobile sealing box 1, and a connecting seat 26 is fixedly connected to the side of the heating furnace 9 close to the limit platform 11, and the connecting seat 26 is rotatably connected to the top of the limit platform 11. Both sides of the limit platform 11 are provided with hydraulic rods 13, and the bottom of the hydraulic rod 13 is rotatably connected to the mobile sealing box 1, and the top of the hydraulic rod 13 is connected to the heating furnace 9;

[0037] During operation, the heating furnace 9 can only rotate at a certain angle through the extension and contraction of the two hydraulic rods 13 and the rotation connection between the limit platform 11 and the connecting seat 26, so as to achieve the effect of pouring out the internal antimony concentrate.

[0038] like Figures 1 to 5 As shown, an outer guard 10 is fixedly connected to the top of the outer side of the heating furnace 9, the top of the hydraulic rod 13 is rotatably connected to the bottom of the outer guard 10, and two pillars 12 are fixedly connected to the inner bottom of the mobile sealing box 1. An adapter hole is opened on the top surface of the outer guard 10 and penetrates to the bottom. The top of the pillar 12 is set in a hemispherical shape, and the outer side of the pillar 12 is fixedly connected to the top of the disc;

[0039] During operation, the outer protective platform 10 can not only be used to reinforce the periphery of the heating furnace 9, but also when the heating furnace 9 remains in a horizontal state, the adapter hole of the outer protective platform 10 will be connected with the top of the pillar 12, and the disc of the pillar 12 will be supported on the bottom of the adapter hole, thereby supporting the entire heating furnace 9. This arrangement not only ensures the stability of the heating furnace 9 when it is in a horizontal state, but also prevents the bottom of the heating furnace 9 from contacting the bottom of the mobile sealing box 1, reducing the heat transfer to the mobile sealing box 1, and further reducing the impact of heat on external equipment.

[0040] like Figures 1 to 5 As shown, a feed seat 4 is fixedly connected to the top of the fixed sealing box 2, and a feeding hole is opened on the top of the feed seat 4 and penetrates to the bottom. The feeding hole is aligned with the top opening of the heating furnace 9, and a first sealing valve 14 and a second sealing valve 15 are installed in the feed seat 4 from top to bottom;

[0041] During operation, in order to ensure that the antimony concentrate is fully heated and melted, the heating process generally adopts a distributed heating method. Specifically, when adding materials to the heating furnace 9 for the first time, a portion of the antimony concentrate is added first, and this portion of the antimony concentrate is heated to a molten state first, and then the remaining portion of the antimony concentrate is added to the heating furnace 9. In this way, the previously molten antimony concentrate can better transfer heat to the solid antimony concentrate. Compared with pouring all the antimony concentrate into the heating furnace 9 for heating at the same time, the efficiency is much faster. At the same time, the solid antimony concentrate takes up more space. If all of it is put into the heating furnace 9, it is easy to not fit in due to uneven spatial distribution. The design of the feed seat 4 is that when the antimony concentrate placed first has been melted, the first sealing valve 14 is first opened, and the remaining antimony concentrate is placed between the first sealing valve 14 and the second sealing valve 15, and then the first sealing valve 14 is closed, and then the space between the first sealing valve 14 and the second sealing valve 15 is evacuated, and then the second sealing valve 15 is opened, so that the remaining part of the antimony concentrate can be poured into the heating furnace 9, and the whole process will not allow outside air to enter the heating furnace 9, ensuring that the whole process of vacuum heating is not disturbed by the external environment. Shaking the heating furnace 9 after adding can further accelerate the melting process.

[0042] like Figures 4 to 7 As shown, the outer side of the feed seat 4 is fixedly connected with an inclined external sleeve 25, the inner side of the external sleeve 25 is slidably connected with an inner rod 21, the top of the inner rod 21 is provided with a traction assembly, and the traction assembly is used to control the sliding of the inner rod 21, the inner bottom of the heating furnace 9 is slidably connected with a lifting seat 17, and the bottom of the inner rod 21 is provided with a connecting assembly, and the connecting assembly is used to dock with the lifting seat 17;

[0043] During operation, in order to pour out all the antimony concentrate in the heating furnace 9, the heating furnace 9 needs to be tilted to at least 90 degrees. This not only requires the hydraulic rod 13 to be designed to be longer, but also requires the internal space to be designed to be particularly large, resulting in high equipment costs. In addition, if the tilt is too high, it is easy to cause unstable support and cause accidents. Through the setting of the lifting seat 17, during the tilting process, the heating furnace 9 only needs to be tilted 30 degrees. At this time, the inner rod 21 is set parallel to the heating furnace 9. The traction assembly is started to sink the inner rod 21, and the bottom of the inner rod 21 contacts the top surface of the lifting seat 17. The inner rod 21 is made of high heat-resistant material as a whole. After that, the inner rod 21 is connected to the lifting seat 17 through the connecting component. Then, as the inner rod 21 rises, the lifting seat 17 can be pulled upward, so that the entire molten antimony concentrate can be pulled upward, and the uniformly stretched inner rod 21 allows the molten antimony concentrate to flow out from the guide plate 2 27 at a uniform speed. After all the molten antimony concentrate flows out, the inner rod 21 slowly sinks to return the lifting seat 17 to its original position. Through this arrangement, the heating furnace 9 can pour out all the antimony concentrate inside without excessive tilting, reducing the huge safety hazards caused by operational errors. At the same time, the space in the movable sealing box 1 and the fixed sealing box 2 does not need to be designed to be particularly large, saving costs.

[0044] like Figures 4 to 7 As shown, the traction assembly includes a winding box 20, a servo motor is fixedly connected to the inner side of the winding box 20, a steel cable 19 is wound and fixedly connected to the outer side of the driving end of the servo motor, and the steel cable 19 is fixedly connected to the top end of the inner rod 21;

[0045] During operation, the servo motor slowly releases the steel cable 19, and the inner rod 21 gradually slides down under the action of gravity, and finally contacts the lifting seat 17. After docking with the lifting seat 17, the servo motor is started to reel in the steel cable 19, and the inner rod 21 and the lifting seat 17 are pulled upward together, thereby completing the effect of controlling the lifting of the lifting seat 17.

[0046] like Figures 4 to 7 As shown, the connecting assembly includes two support blocks 23, two symmetrically arranged sliding grooves are provided at the bottom of the inner rod 21, and the support block 23 is arranged in a fan shape. The support block 23 is slidably engaged in the sliding grooves, and a clamping groove 24 is provided at the top of the support block 23. The top of the lifting seat 17 is fixedly connected to two symmetrically arranged ground rings 18;

[0047] During operation, when the inner rod 21 passes through the two ground rings 18, the two support blocks 23 will be squeezed inward, and the fan-shaped support blocks 23 can slide to allow the inner rod 21 to pass smoothly. When the inner rod 21 releases the top surface of the lifting seat 17, the inner rod 21 is quickly pulled up. Since the inner rod 21 is located in the viscous antimony concentrate solution, the two support blocks 23 will be pulled out during the rapid pulling process. At the same time, the structural setting of the slide groove prevents the support blocks 23 from falling out of the slide groove. At this time, the two card grooves 24 will dock with the two ground rings 18, so that the inner rod 21 can dock with the two ground rings 18, thereby completing the effect of controlling the lifting seat 17 to lift and lower.

[0048] like Figures 4 to 7 As shown, the rear end of the external sleeve 25 is connected to the exchange barrel 5, the outer side of the exchange barrel 5 is fixedly connected to the air pump group 8, the air pump group 8 is connected to the exchange barrel 5, and the middle part of the inner rod 21 is provided with an air flow groove 22, and the air flow groove 22 is connected to two slide grooves;

[0049] During operation, in order to ensure that the two support blocks 23 can be fully opened, when the inner rod 21 touches the bottom, the air pump group 8 is started, and air pressure is input into the exchange barrel 5. The air pressure acts on the support blocks 23 through the air flow grooves 22 and the slide grooves, thereby pushing the two support blocks 23 outward, ensuring that the two support blocks 23 can be fully opened, and ensuring that the card slots 24 can contact the two ground rings 18. When it is necessary to contact the connection between the inner rod 21 and the ground ring 18, it is only necessary to put the lifting seat 17 back to its original position first, and then the inner rod 21 touches the bottom, so that the support blocks 23 are not in contact with the ground ring 18. At this time, the air pump group 8 is started to generate negative pressure, so that the two support blocks 23 are adsorbed inwardly, and the two support blocks 23 are stored in the slide grooves. In this way, when the inner rod 21 rises, it can be smoothly pulled out, thereby achieving the effect of releasing the connection with the ground ring 18.

[0050] like Figures 4 to 7 As shown, the winding box 20 is fixedly connected to the outer shell of the air pump group 8, a support platform 7 is connected between the air pump group 8 and the fixed sealing box 2, a steel pipe is fixedly connected between the exchange barrel 5 and the winding box 20, and the steel cable 19 passes through the exchange barrel 5 and enters the winding box 20 through the steel pipe. When working, the mutual cooperation and fixation of multiple parts keep the driving source away from the heating area and will not be affected by high temperature.

[0051] During operation, the mobile sealed box 1 can move horizontally on the guide rail 3 through the setting of the mobile sealed box 1 and the fixed sealed box 2. When the mobile sealed box 1 is away from the fixed sealed box 2, the heating furnace 9 is exposed to the outside, and the antimony concentrate raw material can be directly added to the heating furnace 9. After the addition is completed, the mobile sealed box 1 is allowed to slide on the guide rail 3, and docked and fixed with the fixed sealed box 2. Then, the inner space of the entire mobile sealed box 1 and the fixed sealed box 2 is vacuumed using a negative pressure suction tube, and the antimony concentrate inside is heated by the heating furnace 9. A heating coil is provided in the interlayer of the heating furnace 9. During the heating process, the entire heating furnace 9 can be shaken by a swinging assembly so that the antimony concentrate can be fully melted. After the heating is completed, the external cooling equipment is docked with the docking valve 6, and the cooling equipment is vacuumed. At this time, the docking valve 6 is opened, and driven by the swing component, the heating furnace 9 is tilted toward the docking valve 6, so that the molten antimony concentrate in the heating furnace 9 is poured out and received by the external cooling equipment. Through this setting, the entire heating furnace 9 is wrapped in a hollow environment, and it is only necessary to ensure the connection and sealing of the mobile sealing box 1 and the fixed sealing box 2. Since the mobile sealing box 1 and the fixed sealing box 2 are far away from the heating furnace 9, there is no need to consider the heat resistance problem too much. At the same time, due to the distance from the heating furnace 9, the outer surface temperature of the mobile sealing box 1 and the fixed sealing box 2 will not be too high. At the same time, with the setting of the docking valve 6, the molten antimony concentrate can also be in a vacuum state throughout the process when it is poured out, and will not be exposed to the air. The vacuum environment can avoid oxidation and pollution, and improve the heat treatment effect;

[0052] When the heating furnace 9 is tilted, the molten antimony concentrate will be concentrated on the second guide plate 27 and poured out in an orderly manner. As the antimony concentrate is poured out, it will be received by the first guide plate 16, and the first guide plate 16 will transfer it to the external cooling device. Through this setting, the molten antimony concentrate can be poured out accurately and the mistakes in the pouring process can be reduced.

[0053] By extending and shortening the two hydraulic rods 13 and coordinating the rotation connection between the limit table 11 and the connecting seat 26, the heating furnace 9 can only rotate at a certain angle, so that the internal antimony concentrate can be poured out;

[0054] The outer guard 10 can not only be used to reinforce the periphery of the heating furnace 9, but also when the heating furnace 9 is kept in a horizontal state, the adapter hole of the outer guard 10 will be connected with the top of the support 12, and the disc of the support 12 will be supported at the bottom of the adapter hole, thereby supporting the entire heating furnace 9. This arrangement not only ensures the stability of the heating furnace 9 in a horizontal state, but also prevents the bottom of the heating furnace 9 from contacting the bottom of the mobile sealing box 1, thereby reducing the heat transfer to the mobile sealing box 1 and further reducing the influence of heat on external equipment;

[0055] In order to ensure that the antimony concentrate is fully heated and melted, the heating process generally adopts a distributed heating method. Specifically, when adding materials to the heating furnace 9 for the first time, a portion of the antimony concentrate is added first, and this portion of the antimony concentrate is heated to a molten state first, and then the remaining portion of the antimony concentrate is added to the heating furnace 9. In this way, the previously molten antimony concentrate can better transfer heat to the solid antimony concentrate. Compared with pouring all the antimony concentrate into the heating furnace 9 for heating at the same time, the efficiency is much faster. At the same time, the solid antimony concentrate takes up more space. If all of it is put into the heating furnace 9, it is easy to not fit in due to uneven spatial distribution. By feeding The design of the seat 4 is that when the antimony concentrate put in first has been melted, the first sealing valve 14 is opened first, and the remaining antimony concentrate is put between the first sealing valve 14 and the second sealing valve 15, and then the first sealing valve 14 is closed, and then the space between the first sealing valve 14 and the second sealing valve 15 is evacuated, and then the second sealing valve 15 is opened, so that the remaining part of the antimony concentrate can be poured into the heating furnace 9, and the whole process will not allow the outside air to enter the heating furnace 9, ensuring that the whole process of vacuum heating is not disturbed by the outside environment, and shaking the heating furnace 9 after adding can further accelerate the melting process;

[0056] In order to pour out all the antimony concentrate in the heating furnace 9, the heating furnace 9 needs to be tilted to at least 90 degrees. This not only requires the hydraulic rod 13 to be designed to be longer, but also the internal space needs to be designed to be particularly large, resulting in high equipment costs. In addition, if the tilt is too high, it is easy to cause unstable support and cause accidents. Through the setting of the lifting seat 17, during the tilting process, the heating furnace 9 only needs to be tilted 30 degrees. At this time, the inner rod 21 is set parallel to the heating furnace 9. The traction assembly is started to sink the inner rod 21, and the bottom of the inner rod 21 contacts the top surface of the lifting seat 17. The inner rod 21 is made of high heat-resistant material as a whole. The inner rod 21 is connected to the lifting seat 17 through the connecting assembly. Then, as the inner rod 21 rises, the lifting seat 17 can be pulled upward, so that the entire molten antimony concentrate can be pulled upward. The uniformly stretched inner rod 21 allows the molten antimony concentrate to flow out from the second guide plate 27 at a uniform speed. After all the molten antimony concentrate flows out, the inner rod 21 slowly sinks to return the lifting seat 17 to its original position. Through this arrangement, the heating furnace 9 can pour out all the antimony concentrate inside without excessive tilting, reducing the huge safety hazards caused by operational errors. At the same time, the space in the movable sealing box 1 and the fixed sealing box 2 does not need to be designed to be particularly large, saving costs.

[0057] The servo motor slowly releases the steel cable 19. Under the action of gravity, the inner rod 21 gradually slides down and finally contacts the lifting seat 17. After docking with the lifting seat 17, the servo motor is started to reel in the steel cable 19, and the inner rod 21 and the lifting seat 17 are pulled upward together, thereby completing the effect of controlling the lifting seat 17 to move upward.

[0058] When the inner rod 21 passes through the two ground rings 18, the two support blocks 23 will be squeezed inward, and the fan-shaped support blocks 23 can slide to allow the inner rod 21 to pass smoothly. When the inner rod 21 releases the top surface of the lifting seat 17, the inner rod 21 is quickly pulled up. Since the inner rod 21 is located in the viscous antimony concentrate solution, the two support blocks 23 will be pulled out during the rapid pulling process. At the same time, the structural setting of the chute prevents the support blocks 23 from falling out of the chute. At this time, the two card slots 24 will dock with the two ground rings 18, so that the inner rod 21 can dock with the two ground rings 18, thereby completing the effect of controlling the lifting seat 17 to lift;

[0059] In order to ensure that the two support blocks 23 can be fully opened, when the inner rod 21 touches the bottom, the air pump group 8 is started, and air pressure is input into the exchange barrel 5. The air pressure acts on the support blocks 23 through the air flow grooves 22 and the slide grooves, thereby pushing the two support blocks 23 outward, ensuring that the two support blocks 23 can be fully opened, and ensuring that the card slots 24 can contact the two ground rings 18. When it is necessary to contact the connection between the inner rod 21 and the ground ring 18, it is only necessary to put the lifting seat 17 back to its original position first, and then the inner rod 21 touches the bottom, so that the support blocks 23 are not in contact with the ground ring 18. At this time, the air pump group 8 is started to generate negative pressure, so that the two support blocks 23 are adsorbed inwardly, and the two support blocks 23 are stored in the slide grooves. In this way, when the inner rod 21 rises, it can be smoothly pulled out, thereby achieving the effect of releasing the connection with the ground ring 18.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An antimony concentrate vacuum smelting furnace, characterized in that: It comprises a movable sealing box (1) and a fixed sealing box (2), the bottom of the movable sealing box (1) is connected to two guide rails (3), a heating furnace (9) is arranged on the inner side of the movable sealing box (1), the top of the heating furnace (9) is arranged in an open manner, the opposite sides of the movable sealing box (1) and the fixed sealing box (2) are arranged in an inclined manner, one side of the fixed sealing box (2) is connected to a negative pressure suction pipe, the end of the fixed sealing box (2) away from the movable sealing box (1) is fixedly connected to a docking valve (6), and a swing component is arranged inside the movable sealing box (1), and the swing component is used to drive the heating furnace (9) to tilt it; A second guide plate (27) is fixedly connected to one end of the top of the heating furnace (9) close to the docking valve (6), and the second guide plate (27) is arranged in a central concave shape. A first guide plate (16) is fixedly connected to the intersection of the inner wall of the fixed sealing box (2) and the docking valve (6); The swing assembly comprises a limit platform (11), the limit platform (11) is fixedly connected to the inner bottom of the mobile sealing box (1), a connecting seat (26) is fixedly connected to the side of the heating furnace (9) close to the limit platform (11), the connecting seat (26) is rotatably connected to the top of the limit platform (11), hydraulic rods (13) are arranged on both sides of the limit platform (11), the bottom of the hydraulic rod (13) is rotatably connected to the mobile sealing box (1), and the top of the hydraulic rod (13) is connected to the heating furnace (9); An outer protective platform (10) is fixedly connected to the top of the outer side of the heating furnace (9), the top of the hydraulic rod (13) is rotatably connected to the bottom of the outer protective platform (10), two pillars (12) are fixedly connected to the inner bottom of the movable sealing box (1), an adapter hole is provided on the top surface of the outer protective platform (10) and extends to the bottom, the top of the pillar (12) is hemispherical, and the outer side of the pillar (12) is fixedly connected to a disc at the top; A feed seat (4) is fixedly connected to the top of the fixed sealing box (2), a feeding hole is provided on the top of the feed seat (4) and extends through the bottom, the feeding hole is aligned with the top opening of the heating furnace (9), and a first sealing valve (14) and a second sealing valve (15) are installed in the feed seat (4) from top to bottom; The outer side of the feed seat (4) is fixedly connected with an inclined external sleeve (25), the inner side of the external sleeve (25) is slidably connected with an inner rod (21), the top of the inner rod (21) is provided with a traction assembly, the traction assembly is used to control the sliding of the inner rod (21), the inner bottom of the heating furnace (9) is slidably connected with a lifting seat (17), the bottom of the inner rod (21) is provided with a connection assembly, the connection assembly is used to dock with the lifting seat (17); The traction assembly comprises a winding box (20), a servo motor is fixedly connected to the inner side of the winding box (20), a steel cable (19) is wound and fixedly connected to the outer side of the driving end of the servo motor, and the steel cable (19) is fixedly connected to the top end of the inner rod (21); The connecting assembly comprises two support blocks (23), two symmetrically arranged sliding grooves are provided at the outer side of the bottom of the inner rod (21), the support block (23) is arranged in a fan shape, the support block (23) is slidably engaged in the sliding grooves, a locking groove (24) is provided at the top of the support block (23), and two symmetrically arranged ground rings (18) are fixedly connected to the top of the lifting seat (17).

2. The antimony concentrate vacuum smelting furnace according to claim 1, characterized in that: The rear end of the external sleeve (25) is connected to an exchange barrel (5), the outer side of the exchange barrel (5) is fixedly connected to an air pump group (8), the air pump group (8) is in communication with the exchange barrel (5), and an air flow groove (22) is provided in the middle of the inner rod (21), the air flow groove (22) is in communication with two slide grooves.

3. The antimony concentrate vacuum smelting furnace according to claim 2, characterized in that: The winding box (20) is fixedly connected to the outer shell of the air pump group (8), a support platform (7) is connected between the air pump group (8) and the fixed sealing box (2), a steel pipe is fixedly connected between the exchange barrel (5) and the winding box (20), and the steel cable (19) passes through the exchange barrel (5) and enters the winding box (20) through the steel pipe.

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