Equipment and method for preparing lipoic acid particles

Abstract

The invention discloses equipment for preparing lipoic acid particles, and belongs to the field of lipoic acid preparation.The equipment comprises a tank body, an upper cover is fixedly connected to the upper surface of the tank body, a feeding port is connected to one side of the upper surface of the upper cover, a discharging port is connected to the lower surface of the tank body, and an evaporation bin is fixedly connected to the middle of the inner surface of the tank body; second electromagnetic valves are symmetrically and fixedly connected to the lower surface of the evaporation bin, a stirring assembly used for stirring raw materials is connected to the upper surface of the upper cover, and a drying assembly used for drying the raw materials is connected to the position, close to the lower surface, of the outer surface of the tank body. The swing blades can continuously swing left and right in the dissolving frame, so that a solution in the dissolving frame is stirred in different directions, the solution forms turbulent flow in the dissolving frame, lipoic acid powder moves irregularly and is fully fused with the solution, the dissolving speed of the powder is increased, and compared with an existing stirring mode, the stirring efficiency is improved. Stirring and dissolving time is short, and working efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of thioctic acid preparation, and more particularly to a device for preparing thioctic acid particles. Background Art

[0002] Lipoic acid is an organic compound that can act as a coenzyme to participate in the acyl transfer in the metabolism of substances in the body. It can eliminate free radicals that cause accelerated aging and disease. Lipoic acid enters the cells after being absorbed through the intestines. It has the characteristics of both fat solubility and water solubility.

[0003] When preparing lipoic acid particles, lipoic acid powder and an organic solvent are generally fused, and then the lipoic acid is evaporated into crystalline particles by evaporation to complete the preparation of lipoic acid particles. However, when the organic solvent and lipoic acid are fused, the stirring direction is always in the same direction. As the lipoic acid powder dissolves, the dissolution rate of lipoic acid decreases, and the powder sinks and rotates in the solution, and cannot be fully fused with the solution. Summary of the invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide a device for preparing lipoic acid particles.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A device for preparing lipoic acid particles comprises a tank body, wherein an upper cover is fixedly connected to the upper surface of the tank body, a feed port is connected to one side of the upper surface of the upper cover, a discharge port is connected to the lower surface of the tank body, an evaporation bin is fixedly connected to the middle of the inner surface of the tank body, a second solenoid valve is symmetrically fixedly connected to the lower surface of the evaporation bin, a stirring component for stirring raw materials is connected to the upper surface of the upper cover, and a drying component for drying raw materials is connected to the outer surface of the tank body near the lower surface.

[0007] The stirring assembly includes a first driving motor fixed on the upper surface of the upper cover and a dissolving frame fixed on the inner surface of the tank body near the upper surface, the output end of the first driving motor is fixedly connected to a driving shaft, the top of the outer surface of the driving shaft is fixedly connected to an annular frame, the inner surface of the annular frame is symmetrically fixedly connected to stirring blades, the outer surface of the annular frame is fixedly connected to two groups of racks, the inner surface of the dissolving frame is rotatably connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to an internally threaded sleeve, the outer surface of the internally threaded sleeve is fixedly connected to a swinging blade, one side of the threaded rod is fixedly connected to a gear, and the lower surface of the dissolving frame is fixedly connected to a first solenoid valve.

[0008] Furthermore, the other end of the first solenoid valve extends to the interior of the evaporation bin, the rack and the gear are meshed with each other, and the two groups of racks are respectively located at the top and bottom of the outer surface of the annular frame, and each group of racks has four racks, and the two groups of racks are staggered in sequence. The number of the threaded rods is four, and the internal sliding connection of the swing blade is connected to a limit rod, and one side of the limit rod is fixedly connected to the inner wall of the melting frame, the drive shaft passes through the interior of the evaporation bin, and a heating assembly is connected to the edge of the upper surface of the evaporation bin.

[0009] The heating assembly includes an evaporation tube fixed on the upper surface of the evaporation bin, the inner surface of the evaporation tube is evenly and staggeredly provided with heating plates, the outer surface of the evaporation tube is evenly and fixedly connected with a heat conducting plate, the top of the evaporation tube extends to the inside of the melting frame, and the evaporation tube is connected to the inside of the evaporation bin.

[0010] The drying component includes an annular mesh frame fixed on the inner surface of the tank body near the lower surface, two air pumps fixed in the middle of the outer surface of the tank body, and a drying bin symmetrically fixed on the outer surface of the tank body near the lower surface, the output end of the air pump is fixedly connected to a connecting pipe, and the ends of the two connecting pipes close to each other are fixedly connected to an annular pipe, the outer surface of the annular pipe is symmetrically connected to an air inlet pipe, one end of the air inlet pipe extends to the interior of the drying bin, and the inner surface of the tank body near the lower surface is connected to a collecting component.

[0011] The collecting component includes an annular net frame fixed to the inner surface of the tank body and a cleaning rod fixed to the bottom of the driving shaft. The inner surface of the annular net frame is fixedly connected to a conical net frame, and the lower surface of the annular net frame is symmetrically fixedly connected to a feed pipe. Two push plates are slidably connected to the inside of the annular net frame, and one end of the cleaning rod is connected to the push plate.

[0012] The lower surface of the cleaning rod is in contact with the surface of the conical mesh frame, the pushing plate is located above the feed pipe, the other end of the feed pipe extends to the interior of the drying bin, the interior of the drying bin is connected to a shaking assembly, and the outer surface of the annular tube is slidably connected to a cleaning assembly.

[0013] The shaking assembly includes a sliding frame sliding inside the drying bin and a second driving motor fixed at the bottom of the drying bin, the output end of the second driving motor is fixedly connected to a rotating shaft, the outer surface of the rotating shaft is fixedly connected to a circular ring, the upper surface of the circular ring is evenly provided with a plurality of trapezoidal blocks, the interior of the sliding frame is slidingly connected to a shaking mesh plate, and the lower surface of the shaking mesh plate is symmetrically fixedly connected to support rods.

[0014] The top of the rotating shaft extends to the interior of the drying bin, support slide bars are fixedly connected to both sides of the inner surface of the drying bin, the sliding frame is displaced above the support slide bars, and a bin door is arranged on one side of the drying bin.

[0015] The cleaning assembly comprises a C-shaped plate sliding on the outer surface of the annular tube, one side of the C-shaped plate is fixedly connected with a connecting rod, and one side of the connecting rod is fixedly connected to the outer surface of the driving shaft.

[0016] A method for preparing lipoic acid granules comprises the following steps:

[0017] S1: Pour ethanol and lipoic acid powder into the dissolving frame through the feed port, turn on the first drive motor to drive the drive shaft to rotate, the drive shaft drives the annular frame to rotate, the annular frame drives the two sets of racks to rotate, the upper and lower racks are in contact with the gears respectively, so that the threaded rod rotates forward and reversely, and the swing blades are swung back and forth through the internal threaded sleeve, so that turbulence is formed inside the solution, accelerating the dissolution of the lipoic acid powder;

[0018] S2: The solution enters the evaporation chamber through the first solenoid valve to evaporate and crystallize into particles. The evaporated water vapor enters the evaporation tube, the water vapor heats the heating plate, and the heat inside the evaporation tube heats the solution in the melting frame;

[0019] S3: The crystals flow toward the surface of the conical mesh frame as the solution is filtered. The lipoic acid particles enter the inner part of the annular mesh frame along the conical mesh frame. The driving shaft drives the two cleaning rods and the push plate to rotate. The push plate pushes the lipoic acid particles, so that the lipoic acid particles enter the inner part of the drying bin through the feed pipe for collection.

[0020] S4: Start the air pump to transport air to the inside of the annular tube. The gas in the annular tube containing a large amount of heat is transported to the inside of the drying bin through the air inlet pipe to dry the lipoic acid particles in the drying bin;

[0021] S5: simultaneously starting the second driving motor to drive the circular ring to rotate, and the circular ring drives the multiple trapezoidal blocks to move, and the inclined sides of the trapezoidal blocks contact the support rods, and the shaking screen is lifted upwards, and when the trapezoidal blocks pass through the support rods, the shaking screen falls freely, so that the shaking screen continuously shakes inside the sliding frame;

[0022] S6: While the lipoic acid particles are being dried, the driving shaft is continuously rotating, driving the two connecting rods and the C-shaped plate to rotate, and the C-shaped plate slides on the surface of the annular tube to peel off the particles on the surface of the annular tube.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. This solution sets a stirring component, and the swing blades swing left and right continuously inside the dissolving frame, so that the solution inside the dissolving frame is stirred in different directions, so that the solution forms turbulence inside the dissolving frame, so that the lipoic acid powder moves irregularly, and then fully merges with the solution, thereby accelerating the dissolution rate of the powder. Compared with the existing stirring method, the stirring and dissolving time is short and the working efficiency is high.

[0025] 2. In this scheme, a large amount of water vapor is generated during the crystallization process by setting a heating component. The water vapor moves upward into the interior of the melting frame, carrying a large amount of heat with it. Since the heating plates are staggered on the left and right, the water vapor stays in the interior for a longer time, and the heating plates are fully heated. A large amount of heat is then transferred through the heat conducting plate to heat the solution inside the melting frame, so that the lipoic acid powder and the solvent dissolve more quickly, further improving the dissolution speed and further improving the work efficiency.

[0026] 3. This solution sets up a drying component, and the air pump conveys airflow to the inside of the annular tube through the connecting pipe. The inside of the annular tube contains a large amount of heat. The airflow conveys the heat to the inside of the drying bin through the air inlet pipe to dry the lipoic acid particles inside the drying bin. The heat comes from the inside of the evaporation bin, which reduces the need for additional energy to provide heat and reduces resource consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the stirring assembly of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the evaporation chamber of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the heating component of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the drying component of the present invention;

[0033] Figure 7 For the present invention Figure 2 A magnified image of point A;

[0034] Figure 8 The structure of the dithering component of the present invention is shown in FIG. Figure 1 ;

[0035] Fig. 9 The structure of the dithering component of the present invention is shown in FIG. Figure 2 ;

[0036] Fig.10 It is a flow chart of the preparation method of the present invention.

[0037] Description of the numbers in the figure:

[0038] 1. Upper cover; 2. Tank body; 3. Feed inlet;

[0039] 4. stirring assembly; 41. first driving motor; 42. driving shaft; 43. stirring blade; 44. annular frame; 45. first electromagnetic valve; 46. melting frame;

[0040] 47, heating assembly; 471, evaporation tube; 472, heating plate; 473, heat conducting plate;

[0041] 48. threaded rod; 49. swing blade; 410. internal threaded sleeve; 411. rack; 412. gear;

[0042] 5. Drying assembly; 51. Air pump; 52. Connecting pipe; 53. Ring pipe;

[0043] 54, shaking assembly; 541, sliding frame; 542, shaking screen; 543, supporting rod; 544, trapezoidal block; 545, circular ring; 546, second driving motor; 547, rotating shaft;

[0044] 55. cleaning assembly; 551. connecting rod; 552. C-shaped plate;

[0045] 56. Ring-shaped net frame; 57. Conical net frame; 58. Feeding pipe; 59. Pushing plate; 510. Cleaning rod; 511. Drying chamber; 512. Air inlet pipe;

[0046] 6. Discharge port; 7. Evaporation chamber; 8. Second solenoid valve. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0048] See also Figures 1 to 9 A device for preparing lipoic acid particles includes a tank body 2, an upper cover 1 is fixedly connected to the upper surface of the tank body 2, a feed port 3 is connected to one side of the upper surface of the upper cover 1, a discharge port 6 is connected to the lower surface of the tank body 2, an evaporation bin 7 is fixedly connected to the middle of the inner surface of the tank body 2, a second solenoid valve 8 is symmetrically fixedly connected to the lower surface of the evaporation bin 7, a stirring component 4 for stirring raw materials is connected to the upper surface of the upper cover 1, and a drying component 5 for drying raw materials is connected to the outer surface of the tank body 2 near the lower surface.

[0049] like Figure 2 - Figure 4As shown, the stirring assembly 4 includes a first driving motor 41 fixed on the upper surface of the upper cover 1 and a dissolving frame 46 fixed on the inner surface of the tank body 2 near the upper surface, the output end of the first driving motor 41 is fixedly connected to a driving shaft 42, the top of the outer surface of the driving shaft 42 is fixedly connected to an annular frame 44, the inner surface of the annular frame 44 is symmetrically fixedly connected to stirring blades 43, the outer surface of the annular frame 44 is fixedly connected to two groups of racks 411, the inner surface of the dissolving frame 46 is rotatably connected to a threaded rod 48, the outer surface of the threaded rod 48 is threadedly connected to an internal threaded sleeve 410, the outer surface of the internal threaded sleeve 410 is fixedly connected to a swinging blade 49, a gear 412 is fixedly connected to one side of the threaded rod 48, and the lower surface of the dissolving frame 46 is fixedly connected to a first solenoid valve 45.

[0050] The other end of the first solenoid valve 45 extends to the interior of the evaporation bin 7, the rack 411 and the gear 412 are meshed with each other, and the two groups of racks 411 are respectively located at the top and bottom of the outer surface of the annular frame 44, and each group of racks 411 has four racks, and the two groups of racks 411 are staggered in sequence. There are four threaded rods 48, and the internal sliding connection of the swing blade 49 is connected to a limit rod, and one side of the limit rod is fixedly connected to the inner wall of the melting frame 46, the driving shaft 42 passes through the interior of the evaporation bin 7, and a heating component 47 is connected to the edge of the upper surface of the evaporation bin 7.

[0051] When the lipoic acid powder and the organic solvent are poured into the dissolving frame 46 through the feed port 3, the first driving motor 41 is turned on to drive the driving shaft 42 to rotate, the driving shaft 42 drives the annular frame 44 to rotate, the annular frame 44 drives the stirring blade 43 to rotate at a high speed to stir the solution, and the annular frame 44 drives the upper and lower sets of racks 411 to rotate. When the upper rack 411 contacts the gear 412, the gear 412 and the threaded rod 48 are driven to rotate, and the threaded rod 48 drives the internal threaded sleeve 410 and the swinging blade 49 to rotate under the action of the thread. When the upper rack 411 is away from the gear 412, the gear 412 contacts the lower rack 411, driving the threaded rod 48 to reverse, driving the swing blade 49 to move in the opposite direction, and so on. The swing blade 49 continuously swings left and right inside the dissolving frame 46, so that the solution inside the dissolving frame 46 is stirred in different directions, so that the solution forms turbulence inside the dissolving frame 46, so that the lipoic acid powder moves irregularly and is fully integrated with the solution, thereby accelerating the dissolution rate of the powder. Compared with the existing stirring method, the stirring and dissolving time is short and the working efficiency is high.

[0052] like Figure 5 As shown, the heating assembly 47 includes an evaporation tube 471 fixed on the upper surface of the evaporation bin 7, the inner surface of the evaporation tube 471 is evenly and staggeredly provided with heating plates 472, the outer surface of the evaporation tube 471 is evenly and fixedly connected with a heat conducting plate 473, the top of the evaporation tube 471 extends to the interior of the melting frame 46, and the evaporation tube 471 is interconnected with the interior of the evaporation bin 7.

[0053] When the powder and the solution are fully fused, they enter the evaporation bin 7 through the first solenoid valve 45 for evaporation and crystallization. During the crystallization process, a large amount of water vapor is generated, and the water vapor moves upward into the evaporation tube 471. The water vapor carries a large amount of heat into the evaporation tube 471. Since the heating plates 472 are alternately arranged on the left and right sides, the water vapor stays in the evaporation tube 471 for a longer time, and the heating plates 472 are fully heated. A large amount of heat is then transferred through the heat conducting plate 473 to heat the solution in the melting frame 46, so that the lipoic acid powder and the solvent dissolve more quickly, further improving the dissolution speed and further improving the work efficiency.

[0054] like Figure 6 - Figure 7 As shown, the drying component 5 includes an annular mesh frame 56 fixed on the inner surface of the tank body 2 near the lower surface, two air pumps 51 fixed at the middle of the outer surface of the tank body 2 and a drying bin 511 symmetrically fixed on the outer surface of the tank body 2 near the lower surface, the output end of the air pump 51 is fixedly connected with a connecting pipe 52, and the ends of the two connecting pipes 52 close to each other are fixedly connected with an annular pipe 53, the outer surface of the annular pipe 53 is symmetrically connected with an air inlet pipe 512, one end of the air inlet pipe 512 extends to the interior of the drying bin 511, and the inner surface of the tank body 2 near the lower surface is connected with a collecting component.

[0055] The collecting component includes an annular mesh frame 56 fixed on the inner surface of the tank body 2 and a cleaning rod 510 fixed on the bottom of the driving shaft 42. The inner surface of the annular mesh frame 56 is fixedly connected to a conical mesh frame 57. The lower surface of the annular mesh frame 56 is symmetrically fixedly connected to a feed pipe 58. The inside of the annular mesh frame 56 is slidably connected to two push plates 59. One end of the cleaning rod 510 is connected to the push plate 59.

[0056] The lower surface of the cleaning rod 510 is in contact with the surface of the conical mesh frame 57, and the push plate 59 is located above the feed pipe 58. The other end of the feed pipe 58 extends to the interior of the drying bin 511. The interior of the drying bin 511 is connected to a shaking assembly 54, and the outer surface of the annular tube 53 is slidably connected to a cleaning assembly 55.

[0057] After the thioctic acid in the evaporation bin 7 is crystallized, the second solenoid valve 8 is opened to transport the solution and particles to the surface of the conical mesh frame 57. The conical mesh frame 57 blocks the thioctic acid particles, and the thioctic acid enters the inside of the annular mesh frame 56 along the conical mesh frame 57 for collection. The driving shaft 42 drives the cleaning rod 510 to rotate, and the cleaning rod 510 sweeps the thioctic acid particles on the conical mesh frame 57 to the inside of the annular mesh frame 56. At the same time, the pushing plate 59 moves inside the annular mesh frame 56, pushing the thioctic acid particles inside the annular mesh frame 56 to the inside of the feeding pipe 58, and then enters the drying bin 511 for collection;

[0058] Then, the two air pumps 51 are turned on. The air pumps 51 convey airflow to the inside of the annular tube 53 through the connecting tube 52. The inside of the annular tube 53 contains a large amount of heat. The airflow conveys the heat to the inside of the drying chamber 511 through the air inlet pipe 512 to dry the lipoic acid particles inside the drying chamber 511.

[0059] like Figure 8 - Fig. 9 As shown, the shaking assembly 54 includes a sliding frame 541 sliding inside the drying chamber 511 and a second driving motor 546 fixed at the bottom of the drying chamber 511, the output end of the second driving motor 546 is fixedly connected to a rotating shaft 547, the outer surface of the rotating shaft 547 is fixedly connected to a circular ring 545, the upper surface of the circular ring 545 is evenly provided with a plurality of trapezoidal blocks 544, the interior of the sliding frame 541 is slidingly connected to a shaking mesh plate 542, and the lower surface of the shaking mesh plate 542 is symmetrically fixedly connected to support rods 543.

[0060] The top of the rotating shaft 547 extends to the interior of the drying chamber 511 . Support slide bars are fixedly connected to both sides of the inner surface of the drying chamber 511 . The sliding frame 541 moves above the support slide bars. A chamber door is provided on one side of the drying chamber 511 .

[0061] The thioctic acid particles enter the interior of the drying bin 511 and enter onto the shaking screen plate 542 inside the sliding frame 541. While the thioctic acid particles are drying, the second driving motor 546 is turned on to drive the ring 545 to rotate through the rotating shaft 547. The ring 545 drives the trapezoidal block 544 to rotate. The hypotenuse of the trapezoidal block 544 contacts the bottom of the support rod 543. The trapezoidal block 544 lifts the shaking screen plate 542 upward through the support rod 543. After the trapezoidal block 544 passes the support rod 543, the shaking screen plate 542 loses support and falls freely. In this way, the trapezoidal block 544 constantly contacts the support rod 543, so that the shaking screen plate 542 constantly shakes inside the sliding frame 541, so that the thioctic acid particles on the shaking screen plate 542 constantly shake and flip. During drying, the drying rate is further improved, the drying time is reduced, and the heat comes from the inside of the evaporation bin 7, reducing the extra energy to provide heat and reducing the consumption of resources.

[0062] like Figure 6 As shown, the cleaning assembly 55 includes a C-shaped plate 552 sliding on the outer surface of the annular tube 53 , one side of the C-shaped plate 552 is fixedly connected to a connecting rod 551 , and one side of the connecting rod 551 is fixedly connected to the outer surface of the driving shaft 42 .

[0063] At the same time, the driving shaft 42 drives the two connecting rods 551 to rotate at high speed, and the connecting rods 551 drive the C-shaped plate 552 to slide on the surface of the annular tube 53, so as to peel off the lipoic acid particles adhered to the surface of the annular tube 53 and avoid obstacles when heat is transferred to the inside of the annular tube 53.

[0064] A method for preparing lipoic acid granules comprises the following steps:

[0065] S1: Pour ethanol and lipoic acid powder into the dissolving frame 46 through the feed port 3, turn on the first drive motor 41 to drive the drive shaft 42 to rotate, the drive shaft 42 drives the annular frame 44 to rotate, the annular frame 44 drives the two sets of racks 411 to rotate, the upper and lower racks 411 are in contact with the gear 412 respectively, so that the threaded rod 48 rotates forward and reversely, and the swing blade 49 swings back and forth through the internal threaded sleeve 410, so that turbulence is formed inside the solution, accelerating the dissolution of the lipoic acid powder;

[0066] S2: The solution enters the evaporation chamber 7 through the first solenoid valve 45 to evaporate and crystallize into particles. The evaporated water vapor enters the evaporation tube 471, and the water vapor heats the heating plate 472. The heat inside the evaporation tube 471 heats the solution in the melting frame 46.

[0067] S3: The crystals flow toward the surface of the conical mesh frame 57 as the solution is filtered. The lipoic acid particles enter the interior of the annular mesh frame 56 along the conical mesh frame 57. The driving shaft 42 drives the two cleaning rods 510 and the push plate 59 to rotate. The push plate 59 pushes the lipoic acid particles, so that the lipoic acid particles enter the interior of the drying bin 511 through the feed pipe 58 for collection.

[0068] S4: starting the air pump 51 to supply air to the inside of the annular tube 53. The gas containing a large amount of heat in the annular tube 53 is transported to the inside of the drying chamber 511 through the air inlet pipe 512 to dry the lipoic acid particles in the drying chamber 511.

[0069] S5: simultaneously starting the second driving motor 546, driving the circular ring 545 to rotate, the circular ring 545 driving the plurality of trapezoidal blocks 544 to move, the hypotenuse of the trapezoidal blocks 544 contacting the support rods 543, lifting the shaking screen 542 upwards, when the trapezoidal blocks 544 pass through the support rods 543, the shaking screen 542 falls freely, so that the shaking screen 542 continuously shakes inside the sliding frame 541;

[0070] S6: While the lipoic acid particles are being dried, the drive shaft 42 is continuously rotating, driving the two connecting rods 551 and the C-shaped plate 552 to rotate, and the C-shaped plate 552 slides on the surface of the annular tube 53 to peel off the particles on the surface of the annular tube 53.

[0071] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for preparing lipoic acid particles, comprising a tank body (2), wherein an upper cover (1) is fixedly connected to the upper surface of the tank body (2), a feed port (3) is connected to one side of the upper surface of the upper cover (1), a discharge port (6) is connected to the lower surface of the tank body (2), an evaporation bin (7) is fixedly connected to the middle of the inner surface of the tank body (2), and a second solenoid valve (8) is symmetrically fixedly connected to the lower surface of the evaporation bin (7); Features: The upper surface of the upper cover (1) is connected to a stirring assembly (4) for stirring the raw materials, and the outer surface of the tank body (2) near the lower surface is connected to a drying assembly (5) for drying the raw materials; The stirring assembly (4) comprises a first driving motor (41) fixed on the upper surface of the upper cover (1) and a dissolving frame (46) fixed on the inner surface of the tank body (2) near the upper surface, the output end of the first driving motor (41) is fixedly connected to a driving shaft (42), the top of the outer surface of the driving shaft (42) is fixedly connected to an annular frame (44), the inner surface of the annular frame (44) is symmetrically fixedly connected to stirring blades (43), the outer surface of the annular frame (44) is fixedly connected to two groups of racks (411), the inner surface of the dissolving frame (46) is rotatably connected to a threaded rod (48), the outer surface of the threaded rod (48) is threadedly connected to an internally threaded sleeve (410), the outer surface of the internally threaded sleeve (410) is fixedly connected to a swinging blade (49), one side of the threaded rod (48) is fixedly connected to a gear (412), and the lower surface of the dissolving frame (46) is fixedly connected to a first electromagnetic valve (45).

2. A device for preparing lipoic acid particles according to claim 1, characterized in that: The other end of the first solenoid valve (45) extends to the interior of the evaporation bin (7), the rack (411) and the gear (412) mesh with each other, and the two groups of racks (411) are respectively located at the top and bottom of the outer surface of the annular frame (44), and each group of racks (411) has four racks, and the two groups of racks (411) are arranged alternately in sequence, the number of the threaded rods (48) is four, the inner sliding connection of the swing blade (49) is connected to a limit rod, and one side of the limit rod is fixedly connected to the inner wall of the melting frame (46), the driving shaft (42) passes through the interior of the evaporation bin (7), and a heating component (47) is connected to the edge of the upper surface of the evaporation bin (7).

3. A device for preparing lipoic acid particles according to claim 2, characterized in that: The heating assembly (47) comprises an evaporation tube (471) fixed on the upper surface of the evaporation bin (7); heating plates (472) are evenly and staggeredly arranged on the inner surface of the evaporation tube (471); a heat conducting plate (473) is evenly and fixedly connected to the outer surface of the evaporation tube (471); the top of the evaporation tube (471) extends to the inside of the melting frame (46); and the evaporation tube (471) is connected to the inside of the evaporation bin (7).

4. A device for preparing lipoic acid particles according to claim 3, characterized in that: The drying component (5) comprises an annular mesh frame (56) fixed on the inner surface of the tank body (2) close to the lower surface, two air pumps (51) fixed at the middle of the outer surface of the tank body (2), and a drying chamber (511) symmetrically fixed on the outer surface of the tank body (2) close to the lower surface, the output end of the air pump (51) is fixedly connected to a connecting pipe (52), and the ends of the two connecting pipes (52) close to each other are fixedly connected to an annular pipe (53), the outer surface of the annular pipe (53) is symmetrically connected to an air inlet pipe (512), one end of the air inlet pipe (512) extends to the interior of the drying chamber (511), and the inner surface of the tank body (2) close to the lower surface is connected to a collecting component.

5. A device for preparing lipoic acid particles according to claim 4, characterized in that: The collecting component comprises an annular mesh frame (56) fixed on the inner surface of the tank body (2) and a cleaning rod (510) fixed on the bottom of the driving shaft (42); the inner surface of the annular mesh frame (56) is fixedly connected to a conical mesh frame (57); the lower surface of the annular mesh frame (56) is symmetrically fixedly connected to a feed pipe (58); the interior of the annular mesh frame (56) is slidably connected to two pushing plates (59); one end of the cleaning rod (510) is connected to the pushing plate (59).

6. A device for preparing lipoic acid particles according to claim 5, characterized in that: The lower surface of the cleaning rod (510) is in contact with the surface of the conical mesh frame (57), the pushing plate (59) is located above the feeding pipe (58), the other end of the feeding pipe (58) extends to the interior of the drying bin (511), the interior of the drying bin (511) is connected to a shaking assembly (54), and the outer surface of the annular tube (53) is slidably connected to a cleaning assembly (55).

7. A device for preparing lipoic acid particles according to claim 6, characterized in that: The shaking assembly (54) includes a sliding frame (541) sliding inside the drying chamber (511) and a second driving motor (546) fixed at the bottom of the drying chamber (511), the output end of the second driving motor (546) is fixedly connected to a rotating shaft (547), the outer surface of the rotating shaft (547) is fixedly connected to a circular ring (545), the upper surface of the circular ring (545) is evenly provided with a plurality of trapezoidal blocks (544), the interior of the sliding frame (541) is slidably connected to a shaking screen (542), and the lower surface of the shaking screen (542) is symmetrically fixedly connected to support rods (543).

8. A device for preparing lipoic acid particles according to claim 7, characterized in that: The top of the rotating shaft (547) extends to the interior of the drying chamber (511), and support slide bars are fixedly connected to both sides of the inner surface of the drying chamber (511), and the sliding frame (541) is displaced above the support slide bars, and a chamber door is provided on one side of the drying chamber (511).

9. The device for preparing lipoic acid particles according to claim 8, characterized in that: The cleaning assembly (55) comprises a C-shaped plate (552) sliding on the outer surface of the annular tube (53), one side of the C-shaped plate (552) is fixedly connected to a connecting rod (551), and one side of the connecting rod (551) is fixedly connected to the outer surface of the driving shaft (42).

10. A method for preparing lipoic acid particles according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Pour ethanol and thioctic acid powder into the dissolving frame (46) through the feed port (3), turn on the first drive motor (41) to drive the drive shaft (42) to rotate, the drive shaft (42) drives the annular frame (44) to rotate, the annular frame (44) drives two sets of racks (411) to rotate, the upper and lower racks (411) are respectively in contact with the gear (412), so that the threaded rod (48) rotates forward and reversely, and the swing blade (49) swings back and forth through the internal threaded sleeve (410), so that turbulence is formed inside the solution, accelerating the dissolution of the thioctic acid powder; S2: The solution enters the evaporation chamber (7) through the first solenoid valve (45) to evaporate and crystallize into particles, and the evaporated water enters the evaporation tube (471), the water vapor heats the heating plate (472), and the heat inside the evaporation tube (471) heats the solution in the melting frame (46); S3: The crystals flow toward the surface of the conical mesh frame (57) as the solution is filtered, and the thioctic acid particles enter the interior of the annular mesh frame (56) along the conical mesh frame (57). The driving shaft (42) drives the two cleaning rods (510) and the push plate (59) to rotate, and the push plate (59) pushes the thioctic acid particles, so that the thioctic acid particles enter the interior of the drying bin (511) through the feed pipe (58) for collection; S4: starting the air pump (51) to supply air to the inside of the annular tube (53); the gas containing a large amount of heat in the annular tube (53) is transported to the inside of the drying chamber (511) through the air inlet pipe (512), and the lipoic acid particles in the drying chamber (511) are dried; S5: simultaneously starting the second driving motor (546) to drive the circular ring (545) to rotate, the circular ring (545) drives the plurality of trapezoidal blocks (544) to move, the hypotenuse of the trapezoidal blocks (544) contacts the support rod (543), and the shaking screen plate (542) is lifted upwards, when the trapezoidal blocks (544) pass through the support rod (543), the shaking screen plate (542) falls freely, so that the shaking screen plate (542) continuously shakes inside the sliding frame (541); S6: While the lipoic acid particles are being dried, the drive shaft (42) is continuously rotating, and the drive shaft (42) drives the two connecting rods (551) and the C-shaped plate (552) to rotate, and the C-shaped plate (552) slides on the surface of the annular tube (53) to peel off the particles on the surface of the annular tube (53).

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