A thermostat device and distiller for vacuum distillation of tin

Abstract

The present application relates to distiller technical field, disclose a kind of thermostats and distillers for smelting tin vacuum distillation, including vessel tank, the inner wall of vessel tank is rotatably connected with inner rotary tank, the inside of inner rotary tank is provided with vibration frame, the top of vessel tank is installed with reciprocating drive assembly, vibration frame is driven and reciprocates up and down by reciprocating drive assembly, the inner wall of vibration frame is rotatably connected with outer stirring tube, the inner wall of outer stirring tube is rotatably connected with inner stirring shaft, outer stirring tube and inner stirring shaft are all driven by reciprocating drive assembly, inner rotary tank is driven by inner stirring shaft, the circumferential surface of outer stirring tube is fixedly installed with spiral inner heating coil, the inner wall of spiral inner heating coil is rotatably communicated with inner stirring shaft.The present application is set by inner rotary tank, spiral inner heating coil and liquid stirring module etc., so that the device can efficiently complete temperature control operation in smelting tin vacuum distillation process.

Description

Technical Field

[0001] This invention relates to the field of distiller technology, and more specifically, to a constant temperature device and distiller for vacuum distillation of tin. Background Technology

[0002] Vacuum distillation of non-ferrous metal materials mainly utilizes the differences in boiling points and saturated vapor pressures of different metals to smelt, refine, and purify non-ferrous metals. During the distillation process, a constant temperature control device is required to achieve precise temperature control.

[0003] In the prior art, patent document CN113564375A discloses a constant temperature device and distiller for metallurgical vacuum distillation, including a chamber, a cooling system installed on the chamber, and a temperature control device installed inside the chamber. A receiving mechanism is provided at the top of the chamber, and the discharge end of the receiving mechanism is connected to the temperature control device. The temperature control device includes a heater and a collecting device rotatably connected to the outer wall of the heater. The discharge end of the receiving mechanism is connected to the collecting device. The above-mentioned constant temperature device, without interrupting vacuum distillation, uses the heater to keep the material warm, improving the collection effect. At the same time, it can effectively avoid the blockage of the discharge pipe, protecting the discharge pipe and discharge pot, and improving the metal separation and purification effect. However, the above-mentioned distillation device is not convenient to effectively control the temperature uniformity and constant temperature maintenance effect during distillation by using a rotating distillation method and a synchronous internal and external heating mode. Based on this, the present invention provides a constant temperature device and distiller for tin smelting vacuum distillation to solve the problems mentioned in the background art. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a constant temperature device and distiller for vacuum distillation of tin. Through the design of structures such as an inner vortex tank, a spiral internal heating coil, and a stirring module, the present invention enables the device to efficiently complete the temperature control operation during the vacuum distillation process of tin smelting.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a constant temperature device for vacuum distillation of tin metallurgy, comprising a vessel, an inner vortex vessel rotatably connected to the inner wall of the vessel, a vibrating frame disposed inside the inner vortex vessel, a reciprocating drive assembly mounted on the top of the vessel, the vibrating frame being driven by the reciprocating drive assembly to vibrate up and down reciprocally, an outer stirring tube rotatably connected to the inner wall of the vibrating frame, an inner stirring shaft rotatably connected to the inner wall of the outer stirring tube, both the outer stirring tube and the inner stirring shaft being driven by the reciprocating drive assembly, the inner vortex vessel being driven by the inner stirring shaft, and the outer stirring... A spiral internal heating coil is fixedly installed on the circumferential side of the tube. The inner wall of the spiral internal heating coil is rotatably connected to the inner stirring shaft. A heating ring cavity is fixedly arranged between the relative surfaces of the inner swirling tank and the vessel. A set of heat-conducting fins that cooperate with the heating ring cavity are fixedly installed on the circumferential side of the inner swirling tank. A temperature control module that communicates with the heating ring cavity and the spiral internal heating coil is fixedly installed on the side of the vessel. A vertically arranged temperature probe is fixedly installed inside the vessel. A set of regularly distributed first temperature probes are installed sequentially from top to bottom on the inner wall of the temperature probe. A stirring module is arranged on the inner side of the inner swirling tank.

[0008] As a preferred embodiment, the top of the vessel is fixedly connected to a distillation tube, a vacuum generating tube, and a feed tube, respectively, and a pressure gauge is installed on the top surface of the vessel, with the monitoring end of the pressure gauge extending into the interior of the vessel.

[0009] As a preferred embodiment, the reciprocating drive assembly includes a bracket fixed to the top of the container, a reciprocating toothed plate and a guide rod fixed to the top surface of the vibrating frame, and a gear shaft rotatably connected to the inner wall of the bracket. The peripheral surfaces of the reciprocating toothed plate and the guide rod are slidably connected to the container. The inner wall of the bracket is slidably connected to the guide rod. A return spring is sleeved on the peripheral surface of the guide rod at a position corresponding to the top of the bracket. A servo motor is fixedly installed on the top surface of the bracket. A driven rotating tube, coaxially arranged with the inner rotating container and driven by the servo motor, is rotatably connected to the inner wall of the bracket. The gear shaft is driven by the driven rotating tube. A half gear, which is driven and connected to the reciprocating toothed plate, is fixedly installed at the tail end of the gear shaft. A horizontal shaft is rotatably connected to the inner wall of the vibrating frame. The peripheral surface of the inner stirring shaft is driven and connected to the outer stirring tube through the horizontal shaft. A driven sleeve, which is driven and slidably engaged with the driven rotating tube, is fixedly installed on the top of the inner stirring shaft.

[0010] As a preferred embodiment, the output shaft end of the servo motor is fixedly equipped with an active bevel gear, and the peripheral side of the driven rotary tube is fixedly equipped with an upper bevel gear and a lower bevel gear respectively. The bevel surface of the active bevel gear is connected to the upper bevel gear in a transmission manner. The front end of the gear shaft is fixedly equipped with a linkage bevel gear that meshes with the lower bevel gear. The driven rotary tube has a transmission guide groove with an open bottom end fixedly opened inside. The cross-section of the transmission guide groove is a regular polygon, and the cross-section of the driven sleeve is adapted to the cross-section of the transmission guide groove.

[0011] As a preferred embodiment, a tail bevel tooth is fixedly installed at the end of the horizontal shaft, and driven bevel teeth are fixedly installed on the circumferential surfaces of the inner stirring shaft and the outer stirring tube. The bevel surfaces of the two driven bevel teeth are connected to the tail bevel tooth in a transmission manner, and the tail bevel tooth is disposed between the two driven bevel teeth.

[0012] As a preferred embodiment, the stirring module includes a fixed gear ring fixed to the top of the container, a cross frame fixed to the circumferential side of the outer stirring tube, and a spiral stirring blade fixed to the circumferential side of the inner stirring shaft. The inner wall of the cross frame is rotatably connected to a set of couplings arranged in a circumferential array. Each coupling has a turbulence-inducing swirl plate fixedly installed at its bottom end, and each coupling has a driven gear fixedly installed on its top surface to mesh with the fixed gear ring.

[0013] As a preferred embodiment, the tooth height of the fixed gear ring is 5 to 10 times the tooth height of the driven gear, the turbulence swirl plate is a flat plate structure, and a turbulence hole is fixedly opened inside the turbulence swirl plate.

[0014] As a preferred embodiment, a shaft column is fixedly installed at the bottom of the inner vortex tank, and a linkage guide groove with an open top is fixedly opened inside the shaft column. A transmission part that is slidably connected to the linkage guide groove is fixedly installed at the lower part of the inner stirring shaft. The cross-section of the linkage guide groove is a regular polygon, and the cross-section of the transmission part is adapted to the cross-section of the linkage guide groove.

[0015] As a preferred embodiment, the temperature control module includes an oil guide ring pipe fixed to the inner wall of the container, an oil distribution ring channel opened between the outer stirring tube and the inner stirring shaft, a return oil channel opened at the axis of the inner stirring shaft, a heating oil tank fixed to the circumferential side of the container, and a return oil ring pipe rotatably connected to the circumferential side of the inner stirring shaft. The two ends of the spiral inner heating coil are fixedly connected to the oil guide ring pipe and the return oil ring pipe, respectively. The inner wall of the oil guide ring pipe is rotatably connected to the oil distribution ring channel, and the inner wall of the return oil ring pipe is rotatably connected to the return oil channel. The surface of the heating ring cavity is fixedly connected to the oil guide ring pipe via an oil supply pipe. The top end of the return oil channel is rotatably connected to a return oil pipe, and the other end of the return oil pipe is fixedly connected to the heating oil tank. An electric heating rod is built into the heating oil tank, and an oil pump is fixedly connected to the bottom of the heating oil tank. One end of the oil pump outlet is fixedly connected to the heating ring cavity. The heating oil tank is filled with heat-conducting oil, and a second temperature probe is built into the heating oil tank.

[0016] As a preferred embodiment, a distiller for vacuum distillation of tin metal is equipped with a constant temperature device for vacuum distillation of tin metal as described in any of the preceding embodiments.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a constant temperature device and distiller for vacuum distillation of tin smelting, which has the following beneficial effects:

[0019] This invention, through the design of an internal rotating tank, a spiral internal heating coil, and a stirring module, enables the device to efficiently complete temperature control during the vacuum distillation process of tin smelting. Furthermore, during distillation, this device transforms the traditional static temperature control device into a rotating one, and the traditional single-sided temperature control structure into a synchronous internal and external temperature control structure. Through the above-mentioned conversion of temperature control methods, the temperature control accuracy and constant temperature maintenance effect of this distillation device are effectively improved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the constant temperature device for vacuum distillation of tin metal according to the present invention.

[0021] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0022] Figure 3 For the present invention Figure 1 A schematic diagram of the cross-sectional structure;

[0023] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the local structure at point B;

[0024] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at point C in the middle;

[0025] Figure 6 For the present invention Figure 3 A magnified schematic diagram of the local structure at point D;

[0026] Figure 7 For the present invention Figure 3 A magnified schematic diagram of the local structure at point E;

[0027] Figure 8 For the present invention Figure 3 A magnified schematic diagram of the structure at point F in the middle.

[0028] In the diagram: 1. Vessel; 2. Inner vortex tank; 3. Vibrating frame; 4. Outer stirring tube; 5. Inner stirring shaft; 6. Spiral internal heating coil; 7. Heating ring cavity; 8. Heat-conducting fins; 9. Temperature probe; 10. Support; 11. Reciprocating gear plate; 12. Guide rod; 13. Gear shaft; 14. Return spring; 15. Servo motor; 16. Driven vortex tube; 17. Half gear; 18. Horizontal shaft; 19. Fixed gear ring; 20. Horizontal frame; 21. Spiral stirring blade; 22. Oil pump; 23. Turbulence vortex plate; 24. Driven gear; 25. Shaft column; 26. Transmission unit; 27. Oil guide ring tube; 28. Oil distribution ring channel; 29. ​​Oil return channel; 30. Heating oil tank; 31. Oil return ring tube; 32. Oil delivery pipe; 33. Oil return pipe; 34. Heating rod. Detailed Implementation

[0029] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:

[0030] Please see Figure 1-8 The present invention is a constant temperature device for vacuum distillation of tin smelting. The technical solution adopted is as follows: it includes a container 1, the top of which is fixedly connected to a distillation tube, a vacuum generating tube and a material tube, and a pressure gauge is installed on the top surface of the container 1, with the monitoring end of the pressure gauge extending into the interior of the container 1.

[0031] The distillation tube is used to connect to external condensation equipment for the condensation of tin.

[0032] When the vacuum generating tube is working, it is connected to an external vacuum pump, thereby creating a vacuum environment inside the inner vortex tank 2;

[0033] The feed tube is used to supply the tin material to be vacuum distilled into the interior of this device;

[0034] The inner wall of the container 1 is rotatably connected to the inner rotating container 2. The inner rotating container 2 is equipped with a vibrating frame 3. The top of the container 1 is equipped with a reciprocating drive assembly. The vibrating frame 3 is driven by the reciprocating drive assembly and vibrates up and down. The inner wall of the vibrating frame 3 is rotatably connected to the outer stirring tube 4. The inner wall of the outer stirring tube 4 is rotatably connected to the inner stirring shaft 5. Both the outer stirring tube 4 and the inner stirring shaft 5 are driven by the reciprocating drive assembly. The inner rotating container 2 is driven by the inner stirring shaft 5.

[0035] A shaft column 25 is fixedly installed at the bottom of the inner vortex tank 2. A linkage guide groove with an open top is fixedly opened inside the shaft column 25. A transmission part 26 that is slidably connected to the linkage guide groove is fixedly installed at the lower part of the inner stirring shaft 5. The cross-section of the linkage guide groove is a regular polygon, and the cross-section of the transmission part 26 is adapted to the cross-section of the linkage guide groove.

[0036] By setting the cross-section of the linkage groove and the transmission part 26, the transmission part 26 can effectively drive the inner swirl tank 2 during the up-and-down reciprocating movement.

[0037] By setting the rotation state of the inner swirl tank 2 during distillation, the temperature uniformity of the inner swirl tank 2 and the temperature uniformity of the distillate inside the inner swirl tank 2 can be effectively improved.

[0038] The reciprocating drive assembly includes a bracket 10 fixed to the top of the container 1, a reciprocating toothed plate 11 and a guide rod 12 fixed to the top surface of the vibrating frame 3, and a gear shaft 13 rotatably connected to the inner wall of the bracket 10. The peripheral surfaces of the reciprocating toothed plate 11 and the guide rod 12 are slidably connected to the container 1, and the inner wall of the bracket 10 is slidably connected to the guide rod 12. The cross-section of the guide rod 12 is T-shaped.

[0039] A return spring 14 is fitted on the circumferential side of the guide rod 12 and at the position above the bracket 10;

[0040] A servo motor 15 is fixedly installed on the top surface of the bracket 10. A driven rotating tube 16, which is coaxially arranged with the inner rotating tank 2 and driven by the servo motor 15, is rotatably connected to the inner wall of the bracket 10. The gear shaft 13 is driven by the driven rotating tube 16.

[0041] The output shaft end of the servo motor 15 is fixedly equipped with an active bevel gear, and the peripheral side of the driven rotary tube 16 is fixedly equipped with an upper bevel gear and a lower bevel gear respectively. The bevel gear surface of the active bevel gear is connected to the upper bevel gear in a transmission manner, and the front end of the gear shaft 13 is fixedly equipped with a linkage bevel gear that meshes with the lower bevel gear.

[0042] A half gear 17, which is connected to the reciprocating gear plate 11, is fixedly installed at the tail end of the gear shaft 13.

[0043] By setting the return spring 14 and the reciprocating toothed plate 11, the vibrating frame 3 can reciprocate up and down within the set stroke after the servo motor 15 outputs the speed. Through the vibration of the vibrating frame 3, the concentration and temperature uniformity of the distillate are effectively improved.

[0044] The inner wall of the vibrating frame 3 is rotatably connected to a horizontal shaft 18, and the circumferential side of the inner stirring shaft 5 is connected to the outer stirring tube 4 via the horizontal shaft 18.

[0045] A tail bevel gear is fixedly installed at the end of the horizontal shaft 18. A driven bevel gear is fixedly installed on the circumferential side of the inner stirring shaft 5 and the outer stirring tube 4. The bevel surfaces of the two driven bevel gears are connected to the tail bevel gear in a transmission manner. The tail bevel gear is located between the two driven bevel gears.

[0046] By setting the positions of the tail bevel teeth and the two driven bevel teeth, the rotation directions of the inner stirring shaft 5 and the outer stirring tube 4 are reversed;

[0047] The top of the inner stirring shaft 5 is fixedly installed with a driven sleeve that is connected to and slidably fitted with the driven rotating tube 16. The driven rotating tube 16 has a fixedly opened transmission guide groove with a bottom opening. The cross-section of the transmission guide groove is a regular polygon, and the cross-section of the driven sleeve is adapted to the cross-section of the transmission guide groove.

[0048] By setting the driven sleeve and the transmission guide groove, the driven rotating tube 16 can also continuously and effectively transmit the inner stirring shaft 5 during the up-and-down reciprocating movement of the vibrating frame 3.

[0049] A spiral inner heating coil 6 is fixedly installed on the circumferential side of the outer stirring tube 4. The spiral inner heating coil 6 is a hollow tubular structure.

[0050] The inner wall of the spiral inner heating coil 6 is rotatably connected to the inner stirring shaft 5. A heating ring cavity 7 is fixedly provided between the relative surfaces of the inner swirl tank 2 and the container 1. A set of heat-conducting fins 8 that cooperate with the heating ring cavity 7 are fixedly installed on the circumferential side of the inner swirl tank 2. By setting the heat-conducting fins 8, the contact area between the inner swirl tank 2 and the heating ring cavity 7 is effectively increased. By increasing the contact area, the heating efficiency of the heating ring cavity 7 on the inner swirl tank 2 is effectively improved.

[0051] A temperature control module connected to the heating ring cavity 7 and the spiral inner heating coil 6 is fixedly installed on the side of the container 1. A vertically set temperature probe 9 is fixedly installed inside the container 1. A set of regularly distributed first temperature probes are installed on the inner wall of the temperature probe 9 from top to bottom. A stirring module is set on the inner side of the inner spiral tank 2.

[0052] The stirring module includes a fixed gear ring 19 fixed to the top of the container 1, a cross frame 20 fixed to the side of the outer stirring tube 4, and a spiral stirring blade 21 fixed to the side of the inner stirring shaft 5. The inner wall of the cross frame 20 is rotatably connected to a set of couplings arranged in a circular array. Each coupling has a turbulence swirl plate 23 fixedly installed at its bottom end. Each coupling has a driven gear 24 fixedly installed on its top surface that meshes with the fixed gear ring 19. The tooth height of the fixed gear ring 19 is 8 times the tooth height of the driven gear 24. The turbulence swirl plate 23 has a flat plate structure and a turbulence hole is fixedly opened inside the turbulence swirl plate 23.

[0053] By incorporating a stirring module, the temperature uniformity of the distillate within the device is effectively improved.

[0054] The temperature control module includes an oil guide ring pipe 27 fixed to the inner wall of the container 1, an oil distribution ring channel 28 opened between the outer stirring pipe 4 and the inner stirring shaft 5, an oil return channel 29 opened at the axis position of the inner stirring shaft 5, a heating oil tank 30 fixed to the circumferential side of the container 1, and an oil return ring pipe 31 rotatably connected to the circumferential side of the inner stirring shaft 5. The two ends of the spiral inner heating coil 6 are fixedly connected to the oil guide ring pipe 27 and the oil return ring pipe 31 respectively.

[0055] The inner wall of the oil guide ring pipe 27 is rotatably connected to the oil distribution ring channel 28, and the inner wall of the return oil ring pipe 31 is rotatably connected to the return oil flow channel 29. The surface of the heating ring cavity 7 is fixedly connected to the oil guide ring pipe 27 through the oil supply pipe 32. The top end of the return oil flow channel 29 is rotatably connected to the return oil pipe 33, and the other end of the return oil pipe 33 is fixedly connected to the heating oil tank 30. The heating oil tank 30 has an electric heating rod 34 built inside, and the bottom of the heating oil tank 30 is fixedly connected to the oil pump 22. One end of the oil outlet of the oil pump 22 is fixedly connected to the heating ring cavity 7. The heating oil tank 30 is filled with heat-conducting oil, and the heating oil tank 30 has a second temperature probe built inside.

[0056] A distiller for vacuum distillation of tin, comprising a thermostatic device for vacuum distillation of tin as described above.

[0057] The working principle of this invention is as follows: This device is mainly suitable for constant temperature control during the tin distillation process. During operation, the molten tin to be distilled enters the inner vortex tank 2. During distillation, the heating rod 34 heats the oil in the heating oil tank 30. Through heating, the molten tin is kept in a boiling state. During the distillation operation, the servo motor 15 outputs a speed in a set state. The microcontroller paired with this device receives data feedback from the first temperature probe and the second temperature probe in real time. Based on the data feedback from the first temperature probe and the second temperature probe, the microcontroller controls the heating temperature of the heating rod 34, the working power of the oil pump 22, and the speed of the servo motor 15, thereby keeping the molten tin inside the inner vortex tank 2 at a constant temperature.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A constant temperature apparatus for vacuum distillation of tin, comprising a vessel (1), characterized in that: The inner wall of the container (1) is rotatably connected to an inner swirling tank (2). A vibrating frame (3) is installed inside the inner swirling tank (2). A reciprocating drive assembly is installed on the top of the container (1). The vibrating frame (3) is driven by the reciprocating drive assembly and vibrates up and down. An outer stirring tube (4) is rotatably connected to the inner wall of the vibrating frame (3). An inner stirring shaft (5) is rotatably connected to the inner wall of the outer stirring tube (4). Both the outer stirring tube (4) and the inner stirring shaft (5) are driven by the reciprocating drive assembly. The inner swirling tank (2) is driven by the inner stirring shaft (5). A spiral inner heating coil (6) is fixedly installed on the circumferential side of the outer stirring tube (4). (6) The inner wall of the inner vortex tank (2) is rotatably connected to the inner stirring shaft (5). A heating ring cavity (7) is fixedly provided between the relative surfaces of the inner vortex tank (2) and the container (1). A set of heat-conducting fins (8) that cooperate with the heating ring cavity (7) are fixedly installed on the circumferential side of the inner vortex tank (2). A temperature control module that communicates with the heating ring cavity (7) and the spiral inner heating coil (6) is fixedly installed on the side of the container (1). A vertically arranged temperature probe (9) is fixedly installed inside the container (1). A set of regularly distributed first temperature probes are installed on the inner wall of the temperature probe (9) from top to bottom. A stirring module is provided on the inner side of the inner vortex tank (2). The reciprocating drive assembly includes a bracket (10) fixed to the top of the container (1), a reciprocating gear plate (11) and a guide rod (12) fixed to the top surface of the vibrating frame (3), and a gear shaft (13) rotatably connected to the inner wall of the bracket (10). The peripheral surfaces of the reciprocating gear plate (11) and the guide rod (12) are slidably connected to the container (1). The inner wall of the bracket (10) is slidably connected to the guide rod (12). A return spring (14) is sleeved on the peripheral surface of the guide rod (12) at a position corresponding to the top of the bracket (10). A servo motor (15) is fixedly installed on the top surface of the bracket (10). The inner wall of the bracket (10) is rotatably connected to a driven rotating tube (16) that is coaxially arranged with the inner rotating tank (2) and driven by a servo motor (15). The gear shaft (13) is driven by the driven rotating tube (16). The tail end of the gear shaft (13) is fixedly installed with a half gear (17) that is connected to the reciprocating gear plate (11). The inner wall of the vibrating frame (3) is rotatably connected to a horizontal shaft (18). The circumferential side of the inner stirring shaft (5) is connected to the outer stirring tube (4) through the horizontal shaft (18). The top of the inner stirring shaft (5) is fixedly installed with a driven sleeve that is connected to the driven rotating tube (16) and has a sliding fit. The output shaft end of the servo motor (15) is fixedly equipped with an active bevel gear, and the peripheral side of the driven rotary tube (16) is fixedly equipped with an upper bevel gear and a lower bevel gear respectively. The bevel surface of the active bevel gear is connected to the upper bevel gear in a transmission manner. The front end of the gear shaft (13) is fixedly equipped with a linkage bevel gear that meshes with the lower bevel gear. The driven rotary tube (16) has a transmission guide groove with a bottom opening fixedly opened inside. The cross-section of the transmission guide groove is a regular polygon. The cross-section of the driven sleeve is adapted to the cross-section of the transmission guide groove.

2. The constant temperature apparatus for vacuum distillation of tin smelting according to claim 1, characterized in that: The top of the container (1) is fixedly connected to a distillation tube, a vacuum generating tube and a feed tube, respectively. A pressure gauge is installed on the top surface of the container (1), and the monitoring end of the pressure gauge extends into the interior of the container (1).

3. The constant temperature apparatus for vacuum distillation of tin smelting according to claim 1, characterized in that: The end of the horizontal shaft (18) is fixedly installed with a tail bevel tooth, and the peripheral surfaces of the inner stirring shaft (5) and the outer stirring tube (4) are fixedly installed with driven bevel teeth. The bevel surfaces of the two driven bevel teeth are connected to the tail bevel tooth in a transmission manner, and the tail bevel tooth is located between the two driven bevel teeth.

4. The constant temperature apparatus for vacuum distillation of tin smelting according to claim 3, characterized in that: The stirring module includes a fixed gear ring (19) fixed to the top of the container (1), a cross frame (20) fixed to the side of the outer stirring tube (4), and a spiral stirring blade (21) fixed to the side of the inner stirring shaft (5). The inner wall of the cross frame (20) is rotatably connected to a set of couplings arranged in a circular array. Each coupling has a turbulence swirl plate (23) fixedly installed at the bottom end, and each coupling has a driven gear (24) fixedly installed on the top surface to mesh with the fixed gear ring (19).

5. The constant temperature apparatus for vacuum distillation of tin smelting according to claim 4, characterized in that: The tooth height of the fixed gear ring (19) is 5 to 10 times that of the tooth height of the driven gear (24). The turbulence swirl plate (23) is a flat plate structure, and a turbulence hole is fixedly opened inside the turbulence swirl plate (23).

6. The constant temperature apparatus for vacuum distillation of tin smelting according to claim 5, characterized in that: The inner bottom of the inner swirling tank (2) is fixedly installed with a shaft column (25). The shaft column (25) is fixedly provided with a linkage guide groove with an open top. The lower part of the inner stirring shaft (5) is fixedly provided with a transmission part (26) that is slidably connected to the linkage guide groove. The cross-section of the linkage guide groove is a regular polygon. The cross-section of the transmission part (26) is adapted to the cross-section of the linkage guide groove.

7. The constant temperature apparatus for vacuum distillation of tin smelting according to claim 6, characterized in that: The temperature control module includes an oil guide ring pipe (27) fixed to the inner wall of the container (1), an oil distribution ring channel (28) opened between the outer stirring pipe (4) and the inner stirring shaft (5), an oil return channel (29) opened at the axis position of the inner stirring shaft (5), a heating oil tank (30) fixed to the periphery of the container (1), and an oil return ring pipe (31) rotatably connected to the periphery of the inner stirring shaft (5). The two ends of the spiral inner heating coil (6) are fixedly connected to the oil guide ring pipe (27) and the oil return ring pipe (31) respectively. The inner wall of the oil guide ring pipe (27) is rotatably connected to the oil distribution ring channel (28), and the inner wall of the oil return ring pipe (31) is connected to the oil return channel (29). The heating ring cavity (7) is rotated and connected, and the surface of the heating ring cavity (7) is fixedly connected to the oil guide ring pipe (27) through the oil supply pipe (32). The top end of the return oil channel (29) is rotated and connected to the return oil pipe (33). The other end of the return oil pipe (33) is fixedly connected to the heating oil tank (30). The heating oil tank (30) is equipped with an electric heating rod (34). The bottom of the heating oil tank (30) is fixedly connected to the oil pump (22). One end of the oil outlet of the oil pump (22) is fixedly connected to the heating ring cavity (7). The heating oil tank (30) is filled with heat-conducting oil. The heating oil tank (30) is equipped with a second temperature probe.

8. A distiller for vacuum distillation of tin, characterized in that: The thermostatic apparatus for vacuum distillation of tin as described in any one of claims 1-7.

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