Intermediate frequency furnace suitable for producing cuprous chloride by dry method

Abstract

The invention relates to the technical field of intermediate frequency furnace equipment, and discloses an intermediate frequency furnace suitable for producing cuprous chloride through a dry method, the intermediate frequency furnace comprises a furnace body, a crucible is arranged in the furnace body, a furnace bottom is arranged at the bottom of the furnace body, the furnace bottom is fixedly connected with a connecting seat, and the connecting seat can drive the crucible to enter and exit from the furnace body from the bottom of the furnace body. The crucible is hinged to the connecting base through a connector, and a protective ring is arranged between the furnace bottom and the furnace body. According to the intermediate frequency furnace suitable for producing cuprous chloride through the dry method, taking-out and feeding-in of the crucible, pouring of the crucible and position adjustment of the pipetting groove are achieved through a set of driving structures, the high temperature resistance and the structural strength of the driving structures are guaranteed, meanwhile, the requirement for precision is low, and the equipment cost is reduced. And secondly, after the crucible is taken out of the furnace body, the molten liquid is directly poured through the crucible, the molten liquid cannot corrode the surface of the furnace body, meanwhile, the furnace body is easier to replace, and the maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of medium-frequency furnace equipment, and particularly to a medium-frequency furnace suitable for dry production of cuprous chloride. Background Art

[0002] There are mainly three stages in the dry method for preparing cuprous chloride. In the first stage, in a vacuum furnace, copper powder is heated and melted, and then excessive chlorine gas is introduced to obtain copper chloride at a temperature of 750 - 850 degrees Celsius. In the second stage, the molten copper chloride is introduced into a medium-frequency furnace or a resistance furnace for heat preservation. In the third stage, the molten copper chloride solution that has been heat-preserved for a period of time is introduced into a vacuum furnace, copper is added to reduce copper chloride to cuprous chloride, and then it is atomized into cuprous chloride powder by nitrogen.

[0003] The medium-frequency furnace adopts the principle of electromagnetic induction heating. By adjusting the power output of the medium-frequency power supply, the temperature inside the furnace can be precisely controlled, which is very suitable for heat preservation. In order to prevent the molten copper chloride solution from reacting with air and generating impurities, the medium-frequency furnace needs to be placed inside a vacuum furnace, and the generated molten copper chloride solution is directly introduced into the medium-frequency furnace inside the vacuum furnace. Therefore, automated equipment needs to be set on the medium-frequency furnace to operate the medium-frequency furnace, including operations such as opening / closing the furnace and loading / discharging the molten liquid. Since all these automated equipment are inside the vacuum furnace and need to be heat-resistant, the cost is relatively high.

[0004] Secondly, in the prior art, the molten liquid is usually loaded or discharged by the way of overall swinging. On the one hand, the overall volume of the medium-frequency furnace is relatively large, and overall swinging requires a large space. On the other hand, the high-temperature copper chloride solution is corrosive, and it will corrode the surface of the furnace body when the molten copper chloride solution flows along the surface of the furnace, and the surface of the medium-frequency furnace needs to be repaired regularly, resulting in a high use cost. Summary of the Invention

[0005] This application provides a medium-frequency furnace suitable for dry production of cuprous chloride. A set of driving structures is used to meet all the moving requirements. Moreover, while ensuring heat resistance and structural strength, the driving structures have low requirements for precision, reducing the equipment cost. And after the crucible is taken out of the furnace body, the molten liquid is directly poured through the crucible, and the molten liquid will not corrode the surface of the furnace body. At the same time, the furnace body is also easier to replace, reducing the maintenance cost.

[0006] To achieve the above object, the present application adopts the following technical solution: An intermediate frequency furnace applicable to dry production of cuprous chloride includes a vacuum chamber and a moving cart installed on an equipment platform. The moving cart can move collinearly along the axis of the vacuum chamber. The moving cart is fixedly connected with a cover plate, and when the cover plate and the vacuum chamber are combined, the vacuum chamber can be sealed. The cover plate is fixedly connected with a fixed frame, and the fixed frame is fixedly connected with a furnace body. A crucible is arranged in the furnace body, and the bottom of the furnace body is provided with a furnace bottom. The furnace bottom is fixedly connected with a connecting seat, and the connecting seat can take the crucible in and out of the furnace body from the bottom of the furnace body. The crucible is hinged to the connecting seat through a connecting head. A protective ring is arranged between the furnace bottom and the furnace body, and the inner diameter of the protective ring is greater than the outer diameter of the connecting head. The protective ring is connected with the fixed frame through a rotating frame, and the rotating frame is hinged to the fixed frame. The hinge point of the rotating frame is coaxial with the hinge point of the connecting head and the connecting seat. A moving block is arranged on one side of the furnace bottom, and the moving block is provided with an inclined surface. The longitudinal movement of the moving block drives the furnace bottom to move up and down. After the furnace bottom descends to the lowest point, the top of the crucible just disengages from the furnace body but does not disengage from the protective ring. The moving block pulls the protective ring through a traction rope to make the rotating frame rotate. A pouring groove corresponding to the crucible is arranged at the bottom of the vacuum chamber below the moving block. A liquid transfer groove is movably connected above the moving block. When the crucible is at the lowest point, the end of the liquid transfer groove can move above the crucible.

[0007] Further, the distance from the hinge point of the rotating frame to the protective ring and the distance from the hinge point of the connecting head to the opening of the crucible are both L. A guiding structure is arranged on the fixed frame, and the guiding structure enables the furnace bottom to only move up and down, and the guiding structure limits the maximum movement amount of the furnace bottom to L.

[0008] Further, an inclined support is hinged to the fixed frame, the inclined support is hinged to a connecting plate, and a jack corresponding to the connecting plate is arranged on the moving cart. The connecting plate is detachably connected to the moving cart through a pin.

[0009] Further, when the furnace body is moved out of the vacuum chamber, the moving block and the moving cart move synchronously. After the inclined support is moved out, the connecting plate is installed on the moving cart through a pin. Subsequently, the moving cart continues to move to the target position. When the furnace body is moved into the vacuum chamber (1), first move the moving block to the outermost side. The moving cart moves until the furnace bottom contacts the inclined surface of the moving block and then stops moving. Subsequently, pull out the pin, and the moving cart continues to move until the cover plate closes the vacuum chamber. The duration of the intermediate frequency furnace in a suspended state is short or almost not in a suspended state, effectively reducing the burden on the connection between the fixed frame and the cover plate.

[0010] Further, since the up and down movement of the furnace bottom and the crucible and the coordinated movement of the moving block and the furnace bottom require a large radial space, in order to reduce the requirement for the radial space, a lateral extension plate is fixedly connected to one side of the furnace bottom. The bottom of the lateral extension plate is provided with an inclined surface that cooperates with the moving block, and a sufficiently large first notch is arranged in the middle of the lateral extension plate.

[0011] Further, when pouring the molten liquid, in order to prevent the molten liquid of the protective ring from being poured onto the protective ring, the protective ring is provided with a second notch corresponding to the tilting direction of the crucible. The pipette trough has a protruding part that can pass through the second notch to reach above the crucible. The pipette trough is connected to the moving block through a slider, and the slider is connected to an adjusting rod. A blocking structure is provided in the vacuum chamber that can block the pipette trough from continuing to move away from the furnace bottom. When the pipette trough is blocked, the pipette trough moves to the side close to the furnace bottom. When the moving block moves towards the furnace bottom (8) again, the protruding part at the end of the pipette trough can reach above the crucible. Before the moving block contacts the furnace bottom, the adjusting rod contacts the furnace bottom first. The adjusting rod is pressed and moves, driving the pipette trough to move away from above the protective ring.

[0012] Further, the connecting seat is a spherical seat, and a pouring port is provided on one side. The crucible can be poured downward from the pouring port. The connecting head is hemispherical, and the bottom of the crucible is sleeved into the connecting head. The connecting seat and the connecting head only need to be roughly matched, and the influence of temperature can be ignored. When the crucible and the protective ring rotate, the connecting head rotates in the connecting seat.

[0013] Further, a counterweight is connected to the lowest point of the connecting head or the lowest point of the rotating frame. Under the action of the gravity of the counterweight, the crucible and the rotating frame can automatically recover and maintain a vertical state.

[0014] The beneficial effects of the present invention are as follows:

[0015] An intermediate frequency furnace applicable to the dry production of cuprous chloride provided by the present application uses a set of driving structures to realize the taking out, feeding, pouring of the crucible, and position adjustment of the pipette trough. Moreover, while ensuring high temperature resistance and structural strength, the driving structure has low requirements for precision, reducing the equipment cost.

[0016] Secondly, after taking out the crucible from the furnace body, the molten liquid is directly poured through the crucible. The molten liquid will not corrode the surface of the furnace body, and at the same time, the furnace body is easier to replace, reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings:

[0018] Figure 1 It is a side view of the present invention;

[0019] Figure 2 It is a three-dimensional structure diagram of the present invention;

[0020] Figure 3 It is a schematic diagram of the furnace body in the present invention;

[0021] Figure 4 Schematic diagram of the connecting seat and the connecting head in the present invention;

[0022] Figure 5 Schematic diagram of the liquid transfer tank in the present invention;

[0023] Figure 6 Side view of the connecting seat and the connecting head in the present invention.

[0024] In the figure: 1, vacuum chamber; 2, mobile vehicle; 3, cover plate; 4, fixing frame; 5, moving block; 6, liquid transfer tank; 7, furnace body; 8, furnace bottom; 9, protective ring; 10, crucible; 11, rotating frame; 12, towing rope; 13, pouring trough; 14, inclined support; 15, cooling pipe; 16, observation port; 17, laterally extending plate; 18, connecting seat; 19, connecting head; 20, counterweight; 21, adjusting rod. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1, please refer to Figures 1-4 , an intermediate frequency furnace suitable for dry production of cuprous chloride, including a vacuum chamber 1 and a mobile vehicle 2 installed on an equipment platform. The mobile vehicle 2 can move along a preset track on the equipment platform. The mobile vehicle 2 is provided with a driving structure or is towed to move. The mobile vehicle 2 is fixedly connected with a cover plate 3. The moving direction of the mobile vehicle 2 is collinear with the axis of the vacuum chamber 1. When the cover plate 3 and the vacuum chamber 1 are combined, the vacuum chamber 1 can be sealed. The cover plate 3 is fixedly connected with a fixing frame 4. The fixing frame 4 is fixedly connected with a furnace body 7. The top of the furnace body 7 is closed and is provided with a transparent window. The vacuum chamber 1 is provided with an observation port 16 corresponding to the position of the furnace body 7. The situation inside the furnace body 7 can be observed through the observation port 16. The copper tube coil is located inside the furnace body 7. The copper tube coil is communicated with the outside through a cooling pipe 15. The cooling pipe 15 is communicated with a cooling system. The cooling pipe 15 is filled with a coolant to control the temperature of the coil.

[0027] There is a crucible 10 inside the furnace body 7. The opening of the furnace body 7 is provided at the bottom of the furnace body 7. The crucible 10 enters and exits the furnace body 7 from the bottom of the furnace body 7. There is a furnace bottom 8 at the bottom of the furnace body 7. The furnace bottom 8 is fixedly connected with a connecting seat 18. The connecting seat 18 can be inserted into the furnace body 7. The crucible 10 is hinged to the connecting seat 18 through a connecting head 19. There is a protective ring 9 between the furnace bottom 8 and the furnace body 7. The protective ring 9 presses the furnace bottom 8, and the furnace bottom 8 is in close contact with the furnace body 7, realizing the sealing and heat insulation of the bottom of the intermediate frequency furnace. The protective ring 9 is connected to the fixed frame 4 through a rotating frame 11. The rotating frame 11 is hinged to the fixed frame 4, and the rotating frame 11 and the protective ring 9 are fixedly connected. In order to enable the protective ring 9 to closely adhere to the bottom of the furnace body 7 under the pressure of the furnace bottom 8, the rotating frame 11 is connected to the fixed frame 4 through a waist-shaped hole. The hinge point of the rotating frame 11 is coaxial with the hinge point of the connecting head 19 and the connecting seat 18. The distance from the hinge point of the rotating frame 11 to the protective ring 9 is the same as the distance from the hinge point of the connecting head 19 to the opening of the crucible 10, both being L. There is a moving block 5 on one side of the furnace bottom 8. The moving block 5 is provided with an inclined surface. The furnace bottom 8 contacts the inclined surface on the moving block 5. The longitudinal movement of the moving block 5 drives the up and down movement of the furnace bottom 8. There is a guiding structure on the fixed frame 4. The guiding structure restricts the furnace bottom 8 so that it can only move up and down, and the guiding structure limits the maximum movement amount of the furnace bottom 8. The maximum descending distance of the furnace bottom 8 is L, that is, after the furnace bottom 8 descends to the lowest point, the top of the crucible 10 just disengages from the furnace body 7 but does not disengage from the protective ring 9. The end of the crucible 10 is restricted by the protective ring 9 and will not tip over or fall. There is a moving structure on the moving block 5. The moving structure can be driven by a high-temperature-resistant lead screw. The lead screw driving motor is outside the vacuum furnace, or it can be driven by wind power. In other embodiments, the moving block 5 and the furnace bottom 8 can also be connected by an inclined rod. The movement of the moving block 5 changes the angle of the inclined rod, driving the up and down movement of the furnace bottom 8. The moving block 5 is connected to the protective ring 9 through a traction rope 12. After the moving block 5 moves away from the furnace bottom 8 and the furnace bottom 8 reaches the lowest point, the traction rope 12 pulls the protective ring 9, causing the connecting head 19, the crucible 10, the protective ring 9 and the rotating frame 11 to rotate as a whole, pouring out the molten liquid in the crucible 10. There is a pouring groove 13 below the moving block 5. The pouring groove 13 is communicated with the vacuum furnace for reducing copper chloride and nitrogen atomizing cuprous chloride. After the moving block 5 leaves, the pouring groove 13 is exposed, and the molten liquid in the crucible 10 just flows into the pouring groove 13. There is a liquid-transferring groove 6 movably connected above the moving block 5. When the crucible 10 is at the lowest point, the end of the liquid-transferring groove 6 can move above the crucible 10, guiding the molten liquid into the crucible 10 through the crucible 10 for heat preservation.

[0028] Since the intermediate frequency furnace is integrally installed on the cover plate 3, and in order to facilitate the entry and exit of the intermediate frequency furnace into the vacuum chamber 1, the bottom of the intermediate frequency furnace lacks necessary support, and the connection between the cover plate 3 and the fixed frame 4 bears a large load. For this reason, please refer to Figure 1 and Figure 2, the fixed frame 4 is hinged with an oblique support 14, the oblique support 14 is hinged to the connecting plate, and the mobile car 2 is provided with a socket corresponding to the connecting plate. The connecting plate is detachably connected to the mobile car 2 through a latch. When the intermediate frequency furnace is moved out of the vacuum chamber 1, the moving block 5 and the mobile car 2 move synchronously. The moving block 5 provides support for the suspended part of the intermediate frequency furnace in the vacuum chamber 1. When the oblique support 14 is moved out, the connecting plate is installed on the mobile car 2 through the latch. The oblique support 14 provides support for the intermediate frequency furnace and then continues to move out. When the intermediate frequency furnace is moved into the vacuum chamber 1, First, move the moving block 5 to the outermost side, and the moving car 2 moves until the furnace bottom 8 contacts the inclined surface of the moving block 5 and stops moving. Then, pull out the pin, and the moving car 2 continues to move until the cover 3 closes the vacuum chamber 1. At this time, the inclined support 14 will automatically rotate and fold, which will not affect the medium frequency furnace entering and exiting the vacuum chamber 1. When the medium frequency furnace is in the vacuum chamber 1, the moving block 5 provides support for the suspended medium frequency furnace. The medium frequency furnace is in a suspended state for a short time or is almost not in a suspended state, which effectively reduces the burden on the connection between the fixed frame 4 and the cover 3.

[0029] Since the up and down movement of the furnace bottom 8 and the crucible 10 and the coordinated movement of the movable block 5 and the furnace bottom 8 require a large radial space, in order to reduce the demand for radial space, a lateral extension plate 17 is fixedly connected to one side of the furnace bottom 8, and the bottom of the lateral extension plate 17 is provided with an inclined surface that cooperates with the movable block 5, and the middle of the lateral extension plate 17 is provided with a first notch that is large enough so as not to interfere with the pouring of the molten liquid from the crucible 10.

[0030] See also Figure 2 and Figure 5 When pouring the molten liquid, in order to prevent the molten liquid from pouring onto the guard ring 9, the guard ring 9 is provided with a second notch corresponding to the tilt direction of the crucible 10. The pipette groove 6 has a protrusion, which can pass through the second notch to reach the top of the crucible 10. The pipette groove 6 is connected to the moving block 5 through a slider, and the slider is connected to the adjustment rod 21. When the moving block 5 moves away from the lateral extension plate 17, the pipette groove 6 is blocked by the blocking structure at a certain position. The pipette groove 6 is located at the leftmost side of the moving block 5. When the moving block 5 moves to the left, the protrusion at the end of the pipette groove 6 first passes through the second notch and reaches the top of the crucible 10. At this time, the moving block 5 stops moving, and the newly generated copper chloride melt is introduced into the crucible 10 through the pipetting groove 6. When the melt is loaded, the moving block 5 continues to move to the left, and the adjusting rod 21 first contacts the furnace bottom 8. The adjusting rod 21 moves under pressure, driving the pipetting groove 6 to move to the far right and disengage from the guard ring 9, without interfering with the upward movement of the furnace bottom 8 and the crucible 10. The blocking structure that blocks the pipetting groove 6 from moving to the right can be provided on the lateral extension plate 17, or can be provided in the vacuum chamber 1. For example, the blocking structure can be a protrusion that limits the retreat of the pipetting groove 6, which is provided at the end of the lateral extension plate 17.

[0031] See also Figure 4 and Figure 6, the connecting seat 18 is a spherical seat, with a pouring opening on one side. The crucible 10 can be poured downward from the pouring opening. The connecting head 19 is hemispherical. The bottom of the crucible 10 is sleeved into the connecting head 19. The radian of the connecting head 19 slightly exceeds 180 degrees, so that the opening of the crucible 10 can face downward. The connecting seat 18 and the connecting head 19 can be roughly matched, and the influence of temperature can be ignored. When the crucible 10 and the protective ring 9 rotate, the connecting head 19 rotates in the connecting seat 18.

[0032] A counterweight 20 is connected to the lowest point of the connecting head 19 or the lowest point of the rotating frame 11. Under the action of the gravity of the counterweight 20, the crucible 10 and the rotating frame 11 can automatically recover and maintain a vertical state without an additional driving structure. In this embodiment, the counterweight 20 acts on the lowest point of the connecting head 19. A groove for the rope to pass through and move and a groove for accommodating the counterweight 20 are provided on the furnace bottom 8.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intermediate frequency furnace applicable to the dry production of cuprous chloride, comprising a vacuum chamber (1) and a moving cart (2) installed on an equipment platform. The moving cart (2) can move collinearly along the axis of the vacuum chamber (1). The moving cart (2) is fixedly connected with a cover plate (3). When the cover plate (3) and the vacuum chamber (1) are combined, the vacuum chamber (1) can be sealed. The cover plate (3) is fixedly connected with a fixing frame (4). The fixing frame (4) is fixedly connected with a furnace body (7). A crucible (10) is arranged in the furnace body (7). It is characterized in that: A furnace bottom (8) is arranged at the bottom of the furnace body (7). The furnace bottom (8) is fixedly connected with a connecting seat (18). The connecting seat (18) can take the crucible (10) in and out of the furnace body (7) from the bottom of the furnace body (7). The crucible (10) is hinged to the connecting seat (18) through a connecting head (19). A protective ring (9) is arranged between the furnace bottom (8) and the furnace body (7). The inner diameter of the protective ring (9) is larger than the outer diameter of the connecting head (19). The protective ring (9) is connected with the fixing frame (4) through a rotating frame (11). The rotating frame (11) is hinged to the fixing frame (4). The hinge point of the rotating frame (11) is coaxial with the hinge point of the connecting head (19) and the connecting seat (18). A moving block (5) is arranged on one side of the furnace bottom (8). The moving block (5) is provided with an inclined surface. The longitudinal movement of the moving block (5) drives the furnace bottom (8) to move up and down. After the furnace bottom (8) descends to the lowest point, the top of the crucible (10) just disengages from the furnace body (7), but does not disengage from the protective ring (9). The moving block (5) can pull the protective ring (9) through a traction rope (12) to make the rotating frame (11) rotate. A pouring trough (13) corresponding to the crucible (10) is arranged at the bottom of the vacuum chamber (1) below the moving block (5). A liquid transfer trough (6) is movably connected above the moving block (5). When the crucible (10) is at the lowest point, the end of the liquid transfer trough (6) can move above the crucible (10).

2. The intermediate frequency furnace applicable to dry-process production of cuprous chloride according to claim 1, wherein The distance from the hinge point of the rotating frame (11) to the protective ring (9) and the distance from the hinge point of the connecting head (19) to the opening of the crucible (10) are both L. A guiding structure is arranged on the fixing frame (4). The guiding structure enables the furnace bottom (8) to only move up and down, and the guiding structure limits the maximum movement amount of the furnace bottom (8) to be L.

3. The intermediate frequency furnace applicable to the dry process for producing cuprous chloride according to claim 1, wherein The fixing frame (4) is hinged with an inclined support (14). The inclined support (14) is hinged with a connecting plate. A jack corresponding to the connecting plate is arranged on the moving cart (2). The connecting plate is detachably connected with the moving cart (2) through a pin.

4. An intermediate frequency furnace applicable to the dry production of cuprous chloride according to claim 3, characterized in that, When the furnace body (7) is moved out of the vacuum chamber (1), the moving block (5) and the moving cart (2) move synchronously. After the inclined support (14) is moved out, the connecting plate is installed on the moving cart (2) through a pin. Then the moving cart (2) continues to move to the target position. When the furnace body (7) is moved into the vacuum chamber (1), first move the moving block (5) to the outermost side. The moving cart (2) moves until the furnace bottom (8) contacts the inclined surface of the moving block (5) and then stops moving. Then pull out the pin. The moving cart (2) continues to move until the cover plate (3) closes the vacuum chamber (1).

5. The medium-frequency furnace applicable to dry-method production of cuprous chloride according to claim 1, wherein One side of the furnace bottom (8) is fixedly connected with a laterally extending plate (17). The bottom of the laterally extending plate (17) is provided with an inclined surface that cooperates with the moving block (5), and a sufficiently large first notch is provided in the middle of the laterally extending plate (17).

6. The intermediate frequency furnace applicable to the dry method for producing cuprous chloride according to claim 5, wherein, The protective ring (9) is provided with a second notch corresponding to the tilting direction of the crucible (10). The liquid transfer groove (6) has a protruding part that can pass through the second notch to reach above the crucible (10). The liquid transfer groove (6) is connected to the moving block (5) through a slider, and the slider is connected with an adjusting rod (21). A blocking structure capable of blocking the liquid transfer groove (6) from continuing to move away from the furnace bottom (8) is provided in the vacuum chamber (1). When the liquid transfer groove (6) is blocked, the liquid transfer groove moves to the side close to the furnace bottom (8). When the moving block (5) moves towards the furnace bottom (8) again, the protruding part at the end of the liquid transfer groove (6) can reach above the crucible (10). Before the moving block (5) contacts the furnace bottom (8), the adjusting rod (21) contacts the furnace bottom (8) first. The adjusting rod (21) is pressed to move, driving the liquid transfer groove (6) to move away from above the protective ring (9).

7. The intermediate frequency furnace applicable to dry-method production of cuprous chloride according to claim 1, wherein The connecting seat (18) is a spherical seat, and a pouring port is provided on one side. The crucible (10) can be poured downward from the pouring port. The connecting head (19) is hemispherical, and the bottom of the crucible (10) is sleeved into the connecting head (19).

8. An intermediate frequency furnace applicable to dry-process production of cuprous chloride according to claim 7, characterized in that, A counterweight (20) is connected to the lowest point of the connecting head (19) or the lowest point of the rotating frame (11). Under the action of the gravity of the counterweight (20), the crucible (10) and the rotating frame (11) can automatically recover and maintain a vertical state.

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