Sweetener distillation equipment with vibration linkage mechanism and scale prevention

Abstract

The present application relates to a kind of vibration linkage mechanism's steviol high-efficiency distillation scale prevention equipment, it is related to steviol distillation equipment technical field, including the distillation kettle inner tube for containing raw liquid, the outside of distillation kettle inner tube is fixedly connected with heating nest, the inside raw liquid can be uniformly heated by the heating nest, multiple regulating hot arc pieces are staggered in the inside of heating nest, these regulating hot arc pieces are closely combined with the outer wall of distillation kettle inner tube, to improve heat transfer efficiency and realize partition temperature control, the top of distillation kettle inner tube is fixedly connected with sealing cover by flange structure, the inside of sealing cover is fixedly installed with flow guide plate, the flow guide plate is designed as conical, can effectively guide steam flow, still be equipped with the collection ring fixed in the inside of sealing cover below flow guide plate, annular collection groove is opened in the top of collection ring, while one side of collection ring is opened with outflow port, it is convenient to export condensed water quickly, prevent condensed water from falling into raw liquid and cause pollution.

Description

Technical Field

[0001] This invention relates to the field of stevia distillation equipment technology, specifically to a high-efficiency stevia distillation and anti-scaling device with a vibration linkage mechanism. Background Technology

[0002] Stevia, a natural, low-calorie, and high-sweetness functional sweetener, is widely used in food, beverages, pharmaceuticals, and health products. With the increasing popularity of health-conscious consumption, the market demand for high-purity stevia continues to rise. Distillation is the core step in the stevia refining process. The principle involves pre-treating the stevia extract and then heating and vaporizing it in a distillation column to separate the active ingredients from impurities, thus achieving the purification of stevia's effective components. The operating efficiency, separation accuracy, and stability of the distillation equipment directly determine the purity, yield, and energy consumption of the stevia product.

[0003] Stevia production, especially the extraction process, requires the use of a reaction vessel. When processing stevia in a reaction vessel, extraction and heating processes are required. Impurities generated by the reaction of materials can easily form a scale layer on the inner wall of the reaction vessel and the surface of heat exchange components. This will significantly increase the heat transfer resistance, causing uneven heating and low heating efficiency, and may also contaminate the raw liquid and accelerate the wear and tear of the reaction vessel equipment.

[0004] During the heating process, on the one hand, there are problems such as uneven heating and low heating efficiency, which leads to poor heating consistency of the raw liquid, easily causing glycoside loss and product quality fluctuations. On the other hand, the steam generated by the heating of the raw liquid condenses in the reactor to form condensate. If it cannot be discharged in time, it will not only introduce impurities and contaminate the raw liquid, but also interfere with the normal reaction process, further aggravating the instability of the production process. In summary, in the process of stevia processing, the reactor suffers from the superposition of problems such as scale buildup, heating imbalance, and condensate retention, which seriously affect production efficiency, product quality and equipment lifespan. Summary of the Invention

[0005] Technical problems to be solved

[0006] The purpose of this invention is to overcome the shortcomings of the prior art, adapt to practical needs, and provide a high-efficiency anti-scaling device for stevia distillation with a vibration linkage mechanism to solve the above-mentioned technical problems.

[0007] Technical solution

[0008] To achieve the objectives of this invention, the technical solution adopted is as follows:

[0009] A high-efficiency distillation and anti-scaling device for stevia with a vibration linkage mechanism includes an inner cylinder of a distillation vessel for holding the raw liquid. A heating nest is fixedly connected to the outer side of the inner cylinder of the distillation vessel. The heating nest can uniformly heat the raw liquid inside. Multiple adjusting heat arc plates are staggered on the inner side of the heating nest. These adjusting heat arc plates are in close contact with the outer wall of the inner cylinder of the distillation vessel to improve the heat transfer efficiency and realize zoned temperature control.

[0010] As a further technical solution of the present invention, a sealing cover is fixedly connected to the top of the inner cylinder of the distillation vessel via a flange structure. A guide plate is fixedly installed on the inner side of the sealing cover. The guide plate is designed in a conical shape to effectively guide the flow of steam. A collecting ring is also provided below the guide plate and fixed to the inner side of the sealing cover. An annular collecting groove is opened at the top of the collecting ring to collect condensate. At the same time, an outflow port is opened on one side of the collecting ring, which communicates with the inner side of the collecting groove to facilitate liquid discharge.

[0011] As a further technical solution of the present invention, the inner side of the guide plate is also provided with multiple guide grooves in a rectangular array. These guide grooves can further guide the vapor flow and guide the liquid to the upper area of ​​the collection groove to improve the collection efficiency. The top of the guide plate is integrally provided with a hollow connecting seat. The top of the hollow connecting seat passes through the sealing cover and extends to its outer side. The connection with the sealing cover adopts an interference fit to ensure the sealing performance. The top of the hollow connecting seat is also fixedly connected with a DC pump. The outlet end of the DC pump passes through the hollow connecting seat and extends to the inner side of the guide plate to realize the active delivery of liquid.

[0012] In addition, a drain pipe is embedded in the side wall of the sealing cover. One end of the drain pipe extends to the inside of the sealing cover, and its inner channel is connected to the inside of the outflow port. A solenoid valve is also fixedly installed at the connection between the drain pipe and the sealing cover. The solenoid valve is connected to an external industrial control computer via a signal line. The industrial control computer can intermittently open the solenoid valve according to the program settings, so that the condensate accumulated inside the collection groove can flow into the drain pipe through the outflow port, and finally the condensate is smoothly discharged to the outside of the equipment through the drain pipe.

[0013] As a further technical solution of the present invention, an isolation guide pipe is fixedly connected to the bottom of the inner cylinder of the distillation kettle. The inner side of the isolation guide pipe is connected to the inner bottom of the inner cylinder of the distillation kettle. A discharge valve is fixedly connected to the bottom of the isolation guide pipe for controlling the discharge. An inner rotor seat and an outer rotor seat are respectively installed on the inner and outer sides of the isolation guide pipe, which together constitute a drive and stirring system.

[0014] As a further technical solution of the present invention, the inner rotor seat includes a magnetic rotor seat placed inside the isolation guide tube. A connecting shaft is fixedly connected to the top of the magnetic rotor seat, and a turbulence-type anti-scaling rotor is fixedly connected to the other end of the connecting shaft. Multiple spiral blades are fixedly arranged in a ring array on the outer side of the rotor, which can effectively prevent scaling and promote liquid mixing.

[0015] As a further technical solution of the present invention, a hollow support frame is fixedly connected to the top of the isolation guide tube. The support frame is sleeved on the outside of the connecting shaft. The turbulence-type anti-scaling rotor and the magnetic rotor seat are located on both sides of the support frame, wherein the turbulence-type anti-scaling rotor is located at the bottom of the inner side of the distillation kettle cylinder.

[0016] As a further technical solution of the present invention, the outer rotor seat includes a bidirectional stator coil sleeved on the outside of the isolation guide tube, with coils wound on both its inner and outer sides. The inner coil cooperates with the magnetic rotor seat to achieve magnetic drive, while the outer coil cooperates with the outer rotor ring sleeved on the outside of the bidirectional stator coil for transmission. Multiple fixed supports are fixedly connected in a ring array on the outer side of the outer rotor ring. Each fixed support is movably connected to a support roller and a steering roller at its end. The support rollers are arranged in pairs, and the steering roller is located below between the two support rollers, with its outer side in contact with the outer side of the support roller, forming a stable transmission.

[0017] As a further technical solution of the present invention, the outer rotor seat also includes a wave-shaped track fixed above the support base. The track is arranged in a ring below the fixed bracket, and the outer side of the steering roller is in contact with the surface of the wave-shaped track to achieve undulating motion during rotation and enhance the stirring effect.

[0018] As a further technical solution of the present invention, a support base is provided below the inner cylinder of the distillation vessel. The support base mainly includes a base mounting plate that is horizontally arranged with the inner cylinder of the distillation vessel. Multiple support feet are fixedly connected in a ring array at the bottom of the base mounting plate. A central hole is provided at the center of the base mounting plate, and the bottom of the isolation guide tube extends through the central hole to the bottom of the base mounting plate.

[0019] As a further technical solution of the present invention, multiple sets of buffer dampers are arranged in a rectangular array between the inner cylinder of the distillation vessel and the base mounting plate. Each set of buffer dampers includes a sliding sleeve fixedly connected to the bottom of the inner cylinder of the distillation vessel. A limiting column fixedly connected to the base mounting plate is inserted into the bottom of the sliding sleeve. A compression spring is also provided between the sliding sleeve and the limiting column. The spring is placed inside the sliding sleeve to provide vibration buffering during equipment operation.

[0020] As a further technical solution of the present invention, a telescopic shielding component is provided between the heating nest and the base mounting plate. The component includes an outer sleeve fixedly connected to the bottom of the heating nest, an inner sleeve slidingly fitted inside the outer sleeve, and the bottom of the inner sleeve fixedly connected to the base mounting plate.

[0021] (3) Beneficial effects:

[0022] A. In this invention, an external industrial control computer is used to control the adjusting heating arc plate inside the heating nest. After the heating arc plate is energized, it generates heat, which is evenly transferred to the inner side of the distillation kettle through heat conduction to heat the raw liquid inside the distillation kettle. The steam generated after the raw liquid is heated comes into contact with the guide plate. Since the temperature of the guide plate is lower than that of the raw liquid, the steam will condense into condensate water the moment it comes into contact with the guide plate. The guide plate is conical, so the condensate water will flow down the inclined slope of the guide plate under the action of gravity. The guide groove inside the guide plate can collect the surrounding condensate water and make it flow quickly into the inner side of the collection groove below. Finally, it flows into the output pipe embedded in the side of the sealing cover through the outflow port. The condensate water is discharged to the external liquid collection device through the output pipe, which avoids the condensate water falling back into the inner side of the heating nest and contaminating the raw liquid inside. At the same time, it eliminates the interference of condensate water retention on the reaction process.

[0023] B. In this invention, while the external industrial control computer controls the heating of the thermal arc plate 14, it also controls the bidirectional stator coil 121 to be energized. Since the bidirectional stator coil 121 has independent coils on both its inner and outer sides, it will generate two magnetic fields on its inner and outer sides after being energized. These two magnetic fields can drive the outer rotor ring 122 and the inner rotor seat 13 to rotate, respectively. The fixed bracket 123 on the outer side of the outer rotor ring 122 rotates synchronously with it, and the steering roller 125 at the end of the fixed bracket 123 contacts the wave-shaped track 126. Therefore, the steering roller... When the 125 rolls along the surface of the wave-shaped track 126, the steering roller 125 will also move up and down following the undulations of the surface of the wave-shaped track 126. Under the traction of the magnetic field, the bidirectional stator coil 121 will move up and down continuously. Then, under the traction of the magnetic field inside the bidirectional stator coil 121, the inner rotor seat 13 will rotate and move up and down at the same time. By utilizing the flow interruption formed when the inner rotor seat 13 rotates and the combined up and down motion of the inner rotor seat 13, the turbulent mixing of the raw liquid in the reactor and the scouring of the cylinder wall are further enhanced, thereby improving the scale prevention and heat exchange efficiency of the equipment.

[0024] C. In this invention, when the fixed bracket 123 rotates with the outer rotor ring 122 between the inner cylinder 2 of the distillation vessel and the base mounting plate 81, the steering roller 125 at the end of the fixed bracket 123 rolls along the surface of the wave-shaped track 126 and moves up and down following the surface shape of the wave-shaped track 126. At the same time, when the steering roller 125 moves to the highest point of the wave-shaped track 126, the support roller 124 just contacts the bottom of the inner cylinder 2 of the distillation vessel, thereby limiting the movement range of the outer rotor ring 122 and preventing the outer rotor ring 122 from colliding with the inner cylinder 2 of the distillation vessel after moving upward. Since the steering roller 125 and the support roller 124 rub against each other, the steering roller 125 and the support roller 124 move in opposite directions. When the support roller 124 contacts the inner cylinder 2 of the distillation vessel, the rolling direction of the support roller 124 is opposite to the moving direction, so that the support roller 124 can roll on the surface of the inner cylinder 2 of the distillation vessel, thereby reducing hard friction after contact, reducing wear, and extending service life.

[0025] D. In this invention, an isolation guide tube is set between the bidirectional stator coil and the magnetic rotor seat. The isolation guide tube will not interfere with the magnetic field. Therefore, although the bidirectional stator coil is sleeved on the outside of the isolation guide tube, it can still drive the magnetic rotor seat inside the isolation guide tube to rotate. Furthermore, the support frame at the top of the isolation guide tube limits the top of the magnetic rotor seat, so that the magnetic rotor seat can only rotate around the connecting shaft. Moreover, the hollow design of the magnetic rotor seat and the support frame does not affect the normal discharge of materials.

[0026] E. In this invention, the magnetic rotor seat drives the turbulence-type anti-scaling rotor at its end to rotate through the connecting shaft. Since the blades on the turbulence-type anti-scaling rotor are spirally designed, strong turbulence is generated when the turbulence-type anti-scaling rotor rotates, which breaks the static thermal boundary layer formed on the inner wall surface of the distillation vessel, so that the heated raw liquid flows rapidly and the unheated raw liquid is replenished to the vicinity of the inner wall of the distillation vessel in time, which greatly improves the heat transfer efficiency and further ensures that the raw liquid is heated evenly. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 In this invention Figure 1 A schematic diagram of the bottom structure;

[0029] Figure 3 In this invention Figure 2 Top view;

[0030] Figure 4 In this invention Figure 3 AA section view;

[0031] Figure 5 In this invention Figure 4 Enlarged schematic diagram of part B;

[0032] Figure 6 In this invention Figure 2 A schematic diagram of the split structure;

[0033] Figure 7 In this invention Figure 6 Partial structural diagram;

[0034] Figure 8 This is a schematic diagram showing the positional structure of the outer rotor seat and the inner rotor seat in this invention;

[0035] Figure 9 In this invention Figure 8 The main view;

[0036] Figure 10 In this invention Figure 9 A schematic diagram of the split structure;

[0037] Figure 11 In this invention Figure 10 A schematic diagram of the bottom structure;

[0038] Figure 12 This is a schematic diagram showing the positional structure of the isolation guide tube and the inner rotor seat in this invention;

[0039] Figure 13 In this invention Figure 12 A schematic diagram of the bottom structure;

[0040] Figure 14 This is a schematic diagram of the internal structure of the outer rotor seat and the inner rotor seat in this invention;

[0041] Figure 15 This is a schematic diagram of the internal structure of the sealing cap in this invention;

[0042] Figure 16 In this invention Figure 15 Partial structural diagram;

[0043] Figure 17 In this invention Figure 16 Another perspective view;

[0044] Figure 18 In this invention Figure 17 Enlarged schematic diagram of part C.

[0045] In the diagram: 1-Heating nest, 2-Inner cylinder of distillation vessel, 3-Sealing cover, 31-Baffle plate, 32-Baffle groove, 33-Collection ring, 34-Hollow connecting seat, 35-Collection groove, 36-Outlet, 4-DC pump, 5-Pressure gauge, 6-Pressure regulating component, 7-Telescopic shielding component, 71-Outer sleeve, 72-Inner sleeve, 8-Support base, 81-Base mounting plate, 82-Support foot, 9-Discharge valve, 10-Buffer damper. 101-Sliding sleeve, 102-Limiting column, 11-Isolation guide tube, 12-Outer rotor seat, 121-Bidirectional stator coil, 122-Outer rotor ring, 123-Fixed bracket, 124-Support roller, 125-Steering roller, 126-Wave track, 13-Inner rotor seat, 131-Turbulence-type anti-scaling rotor, 132-Support frame, 133-Connecting shaft, 134-Magnetic rotor seat, 14-Adjusting thermal arc plate. Detailed Implementation

[0046] Please see Figure 1-3 , Figure 15-18 A high-efficiency distillation and anti-scaling device for stevia with a vibration linkage mechanism includes an inner cylinder 2 for holding the raw liquid in a distillation vessel. A heating nest 1 is fixedly connected to the outer side of the inner cylinder 2. The heating nest can uniformly heat the raw liquid inside. Multiple adjusting heat arc plates 14 are staggered on the inner side of the heating nest 1. These adjusting heat arc plates 14 are tightly fitted to the outer wall of the inner cylinder 2 in order to improve the heat transfer efficiency and realize zoned temperature control.

[0047] Furthermore, a sealing cover 3 is fixedly connected to the top of the inner cylinder 2 of the distillation vessel via a flange structure. A guide plate 31 is fixedly installed on the inner side of the sealing cover 3. The guide plate is designed in a conical shape to effectively guide the flow of steam. Below the guide plate 31, a collecting ring 33 is fixed to the inner side of the sealing cover 3. The top of the collecting ring 33 has an annular collecting groove 35 for collecting condensate. At the same time, an outflow port 36 is opened on one side of the collecting ring 33. The outflow port communicates with the inner side of the collecting groove 35 to facilitate liquid discharge.

[0048] As a further limitation of the above technical solution, the inner side of the guide plate 31 is also provided with multiple guide grooves 32 in a rectangular array. These guide grooves can further guide the vapor flow and guide the liquid to the upper area of ​​the collection groove 35 to improve the collection efficiency. The top of the guide plate 31 is integrally provided with a hollow connecting seat 34. The top of the hollow connecting seat 34 passes through the sealing cover 3 and extends to its outer side. The connection with the sealing cover 3 is made with an interference fit to ensure the sealing performance. The top of the hollow connecting seat 34 is also fixedly connected with a DC pump 4. The outlet end of the DC pump 4 passes through the hollow connecting seat 34 and extends to the inner side of the guide plate 31 to realize the active delivery of liquid.

[0049] More specifically, a pressure gauge 5 and a pressure regulating component 6 are fixedly connected to the top of the sealing cover 3. The pressure gauge 5 is used to monitor the internal pressure in real time, while the pressure regulating component 6 can adjust the system pressure according to process requirements to ensure the safety and stability of the operation process. The pressure regulating component 6 is connected to the inner space of the sealing cover 3 through pipes. With the operation of the pressure regulating component 6, the gas pressure inside the inner cylinder 2 of the distillation kettle can be precisely adjusted and controlled. Through the pressure gauge 5 installed on the equipment, the operator can observe and monitor the pressure value changes inside the inner cylinder 2 of the distillation kettle in real time.

[0050] By adopting the above technical solution, an external industrial control computer controls the adjusting heating arc plate 14 inside the heating nest 1. The heating arc plate 14 generates heat after being energized, which is evenly transferred to the inner side of the distillation vessel inner cylinder 2 through heat conduction, heating the raw liquid inside the inner cylinder 2. The steam generated after the raw liquid is heated comes into contact with the guide plate 31. Since the temperature of the guide plate 31 is lower than the temperature of the raw liquid, the steam condenses into condensate the instant it comes into contact with the guide plate 31. The guide plate 31 is conical in shape. Therefore, under the action of gravity, the condensate will flow downward along the inclined slope of the guide plate 31, and the guide groove 32 on the inner side of the guide plate 31 can collect the surrounding condensate, so that it flows quickly into the inner side of the collection groove 35 below, and finally flows into the output pipe embedded in the side of the sealing cover 3 through the outflow port 36. The condensate is discharged to the external liquid collection device through the output pipe, which avoids the condensate falling back into the inner side of the heating nest 1 and contaminating the original liquid inside, and at the same time eliminates the interference of condensate retention on the reaction process.

[0051] Furthermore, a temperature sensor is fixedly installed on the side of the sealing cover 3. One end of the sensor passes through the sealing cover 3 and extends into its inner space to continuously detect the ambient temperature inside the sealing cover 3. At the same time, the detected temperature data is transmitted to the external industrial control computer system in real time, so that the industrial control computer can dynamically adjust the working temperature of the heating arc plate 14 according to the actual temperature conditions to ensure that the system is always within a suitable temperature range.

[0052] In addition, a drain pipe is embedded in the side wall of the sealing cover 3. One end of the drain pipe extends to the inside of the sealing cover 3, and its inner channel is connected to the inside of the outflow port 36. A solenoid valve is also fixedly installed at the connection between the drain pipe and the sealing cover 3. The solenoid valve is connected to an external industrial control computer through a signal line. The industrial control computer can intermittently open the solenoid valve according to the program settings, so that the condensate accumulated inside the collection groove 35 can flow into the drain pipe through the outflow port 36, and finally the condensate is smoothly discharged to the outside of the equipment through the drain pipe.

[0053] In this embodiment, please refer to Figure 4-5 , Figure 8-14An isolation guide pipe 11 is fixedly connected to the bottom of the inner cylinder 2 of the distillation vessel. The inner side of the isolation guide pipe 11 is connected to the bottom of the inner side of the inner cylinder 2 of the distillation vessel. A discharge valve 9 is fixedly connected to the bottom of the isolation guide pipe 11 to control the discharge. An inner rotor seat 13 and an outer rotor seat 12 are installed on the inner and outer sides of the isolation guide pipe 11, which together constitute the drive and stirring system.

[0054] Furthermore, the inner rotor seat 13 includes a magnetic rotor seat 134 placed inside the isolation guide tube 11. A connecting shaft 133 is fixedly connected to the top of the magnetic rotor seat 134, and a turbulence-type anti-scaling rotor 131 is fixedly connected to the other end of the connecting shaft 133. The outer side of the rotor has multiple spiral blades fixed in a ring array, which can effectively prevent scaling and promote liquid mixing.

[0055] Furthermore, the outer rotor seat 12 includes a bidirectional stator coil 121 sleeved on the outside of the isolation guide tube 11, with coils wound on both its inner and outer sides. The inner coil cooperates with the magnetic rotor seat 134 to achieve magnetic drive, while the outer coil cooperates with the outer rotor ring 122 sleeved on the outside of the bidirectional stator coil 121 for transmission. Multiple fixed brackets 123 are fixedly connected in a ring array on the outer side of the outer rotor ring 122. Each fixed bracket 123 has a support roller 124 and a steering roller 125 movably connected to its end. The support rollers 124 are arranged in pairs, and the steering roller 125 is located below the two support rollers 124, with its outer side in contact with the outer side of the support roller 124 to form a stable transmission.

[0056] By adopting the above technical solution, while the external industrial control computer controls and adjusts the heating of the thermal arc plate 14, it also controls the energization of the bidirectional stator coil 121. Since the bidirectional stator coil 121 has independent coils on both its inner and outer sides, it will generate two magnetic fields on its inner and outer sides after being energized. These two magnetic fields can drive the outer rotor ring 122 and the inner rotor seat 13 to rotate, respectively. The fixed bracket 123 on the outer side of the outer rotor ring 122 rotates synchronously with it, and the steering roller 125 at the end of the fixed bracket 123 contacts the wave-shaped track 126, thus steering... When the roller 125 rolls along the surface of the wave-shaped track 126, the steering roller 125 will also move up and down following the undulations of the surface of the wave-shaped track 126. Under the traction of the magnetic field, the bidirectional stator coil 121 will move up and down continuously. Then, under the traction of the magnetic field inside the bidirectional stator coil 121, the inner rotor seat 13 will rotate and move up and down at the same time. By utilizing the flow interruption formed when the inner rotor seat 13 rotates and the combined up and down movement of the inner rotor seat 13, the turbulent mixing of the raw liquid in the reactor and the scouring of the cylinder wall are further enhanced, thereby improving the scale prevention and heat exchange efficiency of the equipment.

[0057] As a further limitation of the above scheme, an isolation guide tube 11 is provided between the bidirectional stator coil 121 and the magnetic rotor seat 134. The isolation guide tube 11 will not interfere with the magnetic field. Therefore, although the bidirectional stator coil 121 is sleeved on the outside of the isolation guide tube 11, it can still drive the magnetic rotor seat 134 inside the isolation guide tube 11 to rotate. Furthermore, the support frame 132 at the top of the isolation guide tube 11 limits the top of the magnetic rotor seat 134, so that the magnetic rotor seat 134 can only rotate around the connecting shaft 133. Moreover, the hollow design of the magnetic rotor seat 134 and the support frame 132 does not affect the normal discharge of materials.

[0058] More specifically, the top of the isolation guide tube 11 is also fixedly connected to a hollow support frame 132. The support frame 132 is sleeved on the outside of the connecting shaft 133. The turbulence-type anti-scaling rotor 131 and the magnetic rotor seat 134 are located on both sides of the support frame 132, with the turbulence-type anti-scaling rotor 131 located at the bottom of the inner side of the distillation kettle inner cylinder 2.

[0059] As a further limitation of the above scheme, the outer rotor seat 12 also includes a wave-shaped track 126 fixed above the support base 8. The track is arranged in a ring below the fixed bracket 123. The outer side of the steering roller 125 is in contact with the surface of the wave-shaped track 126 to achieve undulating motion during rotation, enhance the scouring effect of turbulence on the cylinder wall, and improve the anti-scaling effect.

[0060] By adopting the above technical solution, when the fixed bracket 123 rotates with the outer rotor ring 122 between the inner cylinder 2 of the distillation vessel and the base mounting plate 81, the steering roller 125 at the end of the fixed bracket 123 rolls along the surface of the wavy track 126 and moves up and down following the surface shape of the wavy track 126. At the same time, when the steering roller 125 moves to the highest point of the wavy track 126, the support roller 124 just contacts the bottom of the inner cylinder 2 of the distillation vessel, thereby limiting the movement range of the outer rotor ring 122 and preventing the outer rotor ring 122 from colliding with the inner cylinder 2 of the distillation vessel after moving upward. Since the steering roller 125 and the support roller 124 are in contact and rub against each other, the steering roller 125 and the support roller 124 move in opposite directions. When the support roller 124 contacts the inner cylinder 2 of the distillation vessel, the rolling direction of the support roller 124 is opposite to the moving direction, so that the support roller 124 can roll on the surface of the inner cylinder 2 of the distillation vessel, thereby reducing hard friction after contact, reducing wear, and extending service life.

[0061] In this embodiment, please refer to Figure 6-7A support base 8 is provided below the inner cylinder 2 of the distillation vessel. The support base 8 mainly includes a base mounting plate 81 that is horizontally arranged with the inner cylinder 2 of the distillation vessel. Multiple support feet 82 are fixedly connected in a ring array at the bottom of the base mounting plate 81. A central hole is provided at the center of the base mounting plate 81. The bottom of the isolation guide tube 11 extends through the central hole to the bottom of the base mounting plate 81.

[0062] More specifically, multiple sets of buffer dampers 10 are arranged in a rectangular array between the inner cylinder 2 of the distillation vessel and the base mounting plate 81. Each set of buffer dampers 10 includes a sliding sleeve 101 fixedly connected to the bottom of the inner cylinder 2 of the distillation vessel. A limiting column 102 fixedly connected to the base mounting plate 81 is inserted into the bottom of the sliding sleeve 101. A compression spring is also provided between the sliding sleeve 101 and the limiting column 102. The spring is placed inside the sliding sleeve 101 to provide vibration buffering during equipment operation.

[0063] Furthermore, a telescopic shielding assembly 7 is provided between the heating nest 1 and the base mounting plate 81. This assembly includes an outer sleeve 71 fixedly connected to the bottom of the heating nest 1, an inner sleeve 72 slidably fitted inside the outer sleeve 71, and the bottom of the inner sleeve 72 fixedly connected to the base mounting plate 81.

[0064] By adopting the above technical solution, the magnetic rotor seat 134 drives the turbulence-type anti-scaling rotor 131 set at its end to rotate through the connecting shaft 133. Since the blades on the turbulence-type anti-scaling rotor 131 are spirally designed, the turbulence-type anti-scaling rotor 131 generates strong turbulence when rotating, which breaks the static thermal boundary layer formed on the inner wall surface of the inner cylinder 2 of the distillation vessel, so that the heated raw liquid flows rapidly and the unheated raw liquid is replenished to the vicinity of the inner wall of the inner cylinder 2 of the distillation vessel in time, which greatly improves the heat transfer efficiency and further ensures that the raw liquid is heated evenly.

[0065] Working principle: In use, the stevia concentrate to be distilled is first fed into the inner cylinder 2 of the distillation vessel. The equipment is started by an external industrial control computer, which simultaneously starts the regulating heating arc plate 14 and the bidirectional stator coil 121. The regulating heating arc plate 14 generates heat after being energized, which is evenly transferred to the concentrate in the inner cylinder 2 of the distillation vessel through heat conduction, thereby heating the concentrate. The temperature sensor collects the temperature of the concentrate in the inner cylinder 2 of the distillation vessel in real time, every 0.Temperature data is fed back to the industrial control computer every 5 seconds. When the temperature approaches the preset target temperature, the industrial control computer adjusts the power supply of the heating arc plate 14 through the PLC module, switching from full heating to constant temperature preservation mode to ensure that the temperature inside the heating arc plate 14 is stable within the preset range and to avoid local overheating that could lead to glycoside loss. At the same time, the bidirectional stator coil 121 generates two magnetic fields after being energized. The inner magnetic field drives the magnetic rotor seat 134 to rotate. The magnetic rotor seat 134 drives the end-mounted turbulence-type anti-scaling rotor 131 to rotate at high speed through the connecting shaft 133. The spirally mounted blades on the turbulence-type anti-scaling rotor 131 generate strong turbulence when rotating, which disrupts the static hot edge formed on the inner wall of the distillation vessel inner cylinder 2 by the original liquid. The interface layer allows the heated raw liquid to flow rapidly, while the unheated raw liquid is promptly replenished to the vicinity of the inner wall of the distillation vessel inner cylinder 2, significantly improving heat transfer efficiency and further ensuring uniform heating of the raw liquid. Simultaneously, the turbulent flow continuously washes the inner wall surface of the turbulent anti-scaling rotor 131, washing away and removing tiny impurities generated by the material reaction, preventing scale adhesion. Meanwhile, the magnetic field outside the bidirectional stator coil 121 drives the outer rotor coil 122 to rotate. When the outer rotor coil 122 rotates, its outer fixed support 123 rotates synchronously. The steering roller 125 at the end of the fixed support 123 contacts the corrugated track 126. Therefore, as the steering roller 125 rolls along the surface of the corrugated track 126, it also follows the surface of the corrugated track 126. The undulations of the surface move up and down, and under the traction of the magnetic field, the bidirectional stator coil 121 moves up and down continuously. Then, under the traction of the magnetic field inside the bidirectional stator coil 121, the inner rotor seat 13 rotates while also moving up and down. Utilizing the flow interruption created by the rotation of the inner rotor seat 13 and its continuous up-and-down combined motion, the turbulent mixing of the raw liquid inside the vessel and the scouring effect on the vessel wall are further enhanced. During the heating process, the steam generated by heating the raw liquid rises and contacts the guide plate 31. Because the temperature of the guide plate 31 is lower than the steam temperature, the steam condenses into condensate on the inner side of the guide plate 31. Under the action of gravity, the condensate flows downward along the inclined surface of the guide plate 31, and the guide groove 32 on the inner side of the guide plate 31 collects... The condensate is collected and guided into the collection groove 35, and finally discharged into the external liquid collection device through the outflow port 36 and the drainage pipe, preventing the condensate from falling back and contaminating the original liquid. Finally, when the reaction reaches the preset time, the industrial control computer first controls the regulating arc plate 14 to stop heating, and then controls the bidirectional stator coil 121 to stop working. After the temperature inside the distillation kettle inner cylinder 2 drops below the preset discharge temperature, the operator can control the discharge valve 9 to open via the industrial control computer, and the stevia product in the distillation kettle inner cylinder 2 is discharged through the discharge valve 9 to the finished product storage device, completing one production cycle. After production, the turbulence-type anti-scaling rotor 131 can be restarted via the industrial control computer, utilizing turbulence to self-clean the interior, reducing subsequent cleaning workload.

[0066] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A high-efficiency stevia distillation and anti-scaling device with a vibration linkage mechanism, characterized in that: The distillation vessel includes an inner cylinder (2) for holding the original liquid. A heating nest (1) for heating the original liquid is fixedly connected to the outside of the inner cylinder (2). Adjustable heating arc plates (14) that fit into the inner cylinder (2) are distributed alternately on the inside of the heating nest (1). The top of the inner cylinder (2) of the distillation vessel is fixedly connected to a sealing cover (3) by a flange. A guide plate (31) is fixedly connected to the inner side of the sealing cover (3). The guide plate (31) is conical. A collection ring (33) is fixed to the inner side of the sealing cover (3) below the guide plate (31). A collection groove (35) is opened at the top of the collection ring (33), and an outflow port (36) communicating with the inner side of the collection groove (35) is opened on one side of the collection ring (33). The inner side of the guide plate (31) is also provided with guide grooves (32) in a rectangular array, and one end of the guide grooves (32) extends to the top of the collection groove (35).

2. The stevia distillation and anti-scaling device with vibration linkage mechanism as described in claim 1, characterized in that: The top of the guide plate (31) is integrally provided with a hollow connecting seat (34). The top of the hollow connecting seat (34) extends through the sealing cover (3) to its outer side. The connection between the hollow connecting seat (34) and the sealing cover (3) is interference-fitted. The top of the hollow connecting seat (34) is also fixedly connected to a DC pump (4). The outlet end of the DC pump (4) extends through the hollow connecting seat (34) to the inner side of the guide plate (31).

3. The stevia distillation and anti-scaling device with vibration linkage mechanism as described in claim 1, characterized in that: The bottom of the inner cylinder (2) of the distillation vessel is fixedly connected to an isolation guide pipe (11), and the inner side of the isolation guide pipe (11) is connected to the bottom of the inner side of the inner cylinder (2) of the distillation vessel. The bottom of the isolation guide pipe (11) is also fixedly connected to a discharge valve (9), and the inner and outer sides of the isolation guide pipe (11) are respectively equipped with an inner rotor seat (13) and an outer rotor seat (12).

4. The stevia distillation and anti-scaling device with vibration linkage mechanism as described in claim 3, characterized in that: in, The inner rotor seat (13) includes a magnetic rotor seat (134) placed inside the isolation guide tube (11). The top of the magnetic rotor seat (134) is also fixedly connected to a connecting shaft (133), and the other end of the connecting shaft (133) is fixedly connected to a turbulence-type anti-scaling rotor (131). The outer side of the turbulence-type anti-scaling rotor (131) is also fixed with multiple blades arranged in a spiral pattern in a ring array.

5. The stevia distillation and anti-scaling device with vibration linkage mechanism as described in claim 4, characterized in that: The top end of the isolation guide tube (11) is also fixedly connected to a hollow support frame (132), and the support frame (132) is sleeved on the outside of the connecting shaft (133). The turbulence-type anti-scaling rotor (131) and the magnetic rotor seat (134) are located on both sides of the support frame (132), wherein the turbulence-type anti-scaling rotor (131) is located at the bottom of the inner side of the inner cylinder (2) of the distillation kettle.

6. The stevia distillation and anti-scaling device with vibration linkage mechanism as described in claim 3, characterized in that: The outer rotor seat (12) includes a bidirectional stator coil (121) sleeved on the outside of the isolation guide tube (11). The inner and outer sides of the bidirectional stator coil (121) are wound with coils. The inner coil is matched with the magnetic rotor seat (134), and the outer coil is matched with the outer rotor ring (122) sleeved on the outside of the bidirectional stator coil (121).

7. The stevia distillation and anti-scaling device with vibration linkage mechanism as described in claim 6, characterized in that: The outer rotor ring (122) is also fixedly connected to a fixed bracket (123) in a ring array on its outer side. Each fixed bracket (123) is movably connected to a support roller (124) and a steering roller (125) at its end. The support rollers (124) are arranged in pairs, while the steering roller (125) is arranged below the two support rollers (124), and the outer side of the steering roller (125) contacts the outer side of the support roller (124).

8. The stevia distillation and anti-scaling device with vibration linkage mechanism as described in claim 3, characterized in that: The outer rotor seat (12) also includes a wave-shaped track (126) fixed above the support base (8), and the wave-shaped track (126) is arranged in a ring below the fixed bracket (123), and the outer wave-shaped track (126) of the steering roller (125) is in contact with the surface of the outer wave-shaped track (126).

9. The stevia distillation and anti-scaling device with vibration linkage mechanism as described in claim 1, characterized in that: The inner cylinder (2) of the distillation vessel is also provided with a support base (8), which mainly includes a base mounting plate (81) that is horizontally arranged with the inner cylinder (2) of the distillation vessel. The bottom of the base mounting plate (81) is fixedly connected with support feet (82) in a ring array. The center of the base mounting plate (81) is also provided with a central hole, and the bottom of the isolation guide tube (11) extends through the central hole to the bottom of the base mounting plate (81).

10. The stevia distillation and anti-scaling device with vibration linkage mechanism as described in claim 9, characterized in that: The inner cylinder (2) of the distillation vessel and the base mounting plate (81) are provided with a buffer damper (10) in a rectangular array. The buffer damper (10) includes a sliding sleeve (101) fixedly connected to the bottom of the inner cylinder (2) of the distillation vessel. Each sliding sleeve (101) is also fitted with a limiting column (102) fixedly connected to the base mounting plate (81). A compression spring is also provided between the sliding sleeve (101) and the limiting column (102), and the compression spring is placed inside the sliding sleeve (101).

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