A device for rapidly drying the surface moisture of Chinese medicinal herbs

Abstract

This utility model discloses a rapid surface moisture drying device for Chinese herbal medicine slices, including a machine body and supporting legs. This utility model employs a support plate, air nozzles, and flexible heads. During the drying process, personnel place the corresponding slices into the internal support plate. Then, the motor drives the drive shaft and the support plate to rotate. The rotating support plate moves below the flexible heads, and by adjusting the position of the flexible heads, it can block slices that are higher than it, forcing the slices to flatten and preventing incomplete drying due to accumulation. Furthermore, the rotating support plate moves slices from different positions to the air nozzles, allowing the symmetrically arranged air nozzles to simultaneously and thoroughly treat the upper and lower surfaces of the slices, expanding the overall drying area and improving the overall drying quality. It has the advantages of material flattening, multiple drying stages, and comprehensive drying.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically to a device for rapidly drying the surface moisture of traditional Chinese medicine decoction pieces. Background Technology

[0002] Traditional Chinese medicine (TCM) decoction pieces are TCM raw materials that have been processed according to TCM theory and processing methods, and can be directly used in TCM clinical practice. This concept indicates that there is no absolute boundary between TCM raw materials and TCM decoction pieces. TCM decoction pieces include some TCM slices processed at the place of origin, raw medicinal materials, and decoction pieces that have been cut and processed. The first two categories should be regarded as TCM raw materials in terms of management, but they are understood as decoction pieces in the formulation and preparation according to TCM theory. Among them, TCM decoction pieces need to be dried by drying equipment during the production process.

[0003] Currently, there are two main methods for drying Chinese medicinal herbs: artificial drying and natural drying. Artificial drying uses steam drying or drying ovens to remove moisture, while natural drying uses natural sunlight. However, natural drying takes a long time, and the surrounding environment can easily affect the herbs. Current methods for drying Chinese medicinal herbs present the following problems: During drying, the herbs are placed inside the dryer on racks, resulting in uneven heating of herbs in different locations. Localized excessively high temperatures during drying reduce the efficacy of the herbs. Significant color variations in the dried herbs lead to inconsistent drying results within the same batch. Furthermore, large stacks of herbs can result in varying thicknesses, causing uneven heating and inconsistent drying effects, further impacting the overall quality. Therefore, the overall drying effect is not ideal and there is room for improvement.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a rapid surface moisture drying device for Chinese herbal medicine slices, which has the advantages of material flattening, multiple drying processes, and comprehensive drying, thereby solving the problems mentioned in the background technology.

[0007] (II) Technical Solution

[0008] To achieve the advantages of material leveling, multiple drying processes, and comprehensive drying, the specific technical solution adopted by this utility model is as follows:

[0009] A device for rapidly drying the surface moisture of Chinese herbal medicine slices includes a body and supporting legs. A drive shaft is installed in the middle of the body. One end of the drive shaft passes through one side of the body and is connected to a motor. Several sets of bearing plates are evenly installed on the surface of the drive shaft. Air jet plates are symmetrically installed on both ends of one side of the bearing plates on the inner surface of the body. Several sets of air outlet nozzles are evenly installed on the surface of the air jet plates. A fixing plate is fixedly installed on the upper side of the other bearing plate on the inner surface of the body. An adjusting screw is threaded to the middle of the surface of the fixing plate. Sliding rods are symmetrically slidably connected to both sides of the surface of the fixing plate. A baffle is connected to the bottom of the sliding rods and the bottom of the adjusting screw. A flexible head is installed at the bottom of the baffle.

[0010] Furthermore, several sets of bearing grooves are evenly distributed on the inner surface of the machine body, and the bearing grooves are rotatably connected to the bearing disk.

[0011] Furthermore, the surface of the bearing plate is provided with a placement groove.

[0012] Furthermore, several sets of flow holes are evenly provided at the bottom of the placement groove.

[0013] Furthermore, support legs are symmetrically installed on both sides of the bottom of the machine body, and a cabinet door is hinged to one side of the machine body surface.

[0014] Furthermore, an exhaust pipe is installed on one side of the top of the machine body.

[0015] Furthermore, a heating box is installed on the other side of the top of the machine body, and several sets of electric heating tubes are installed inside the heating box. A fan is installed at the air inlet on the top of the heating box, and the air outlet of the heating box is connected to the jet plate through a pipe.

[0016] Furthermore, a filter screen is installed at the air inlet of the fan.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a device for rapidly drying the surface moisture of Chinese herbal medicine slices, which has the following beneficial effects:

[0019] This invention employs a support tray, air nozzles, and flexible nozzles. During the drying process of Chinese herbal medicine slices, personnel place the slices into the internal support tray. A motor then drives the drive shaft and support tray to rotate. The rotating support tray moves below the flexible nozzles, allowing the nozzles to be adjusted to block slices higher than themselves, forcing them to flatten and preventing insufficient drying due to accumulation. Furthermore, the rotating support tray moves slices from different positions to the air nozzles, allowing for simultaneous and thorough drying of both the upper and lower surfaces of the slices through symmetrically arranged nozzles. This expands the overall drying area and improves the overall drying quality, offering advantages such as material flattening, multiple drying stages, and comprehensive drying. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a device for rapidly drying the surface moisture of Chinese herbal medicine slices proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the baffle and the flexible head of this utility model;

[0023] Figure 3 This is a partial structural schematic diagram of the jet plate of this utility model;

[0024] Figure 4 This is a structural schematic diagram of the fixing plate of this utility model.

[0025] In the picture:

[0026] 1. Body; 2. Baffle; 3. Soft head; 4. Support groove; 5. Fixing plate; 6. Support plate; 7. Slide rod; 8. Adjusting screw; 9. Heating box; 10. Fan; 11. Electric heating tube; 12. Motor; 13. Exhaust pipe; 14. Drive shaft; 15. Jet plate; 16. Air outlet nozzle; 17. Placement groove; 18. Flow hole; 19. Support leg. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] According to an embodiment of this utility model, a device for rapidly drying the surface moisture of traditional Chinese medicine slices is provided.

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, a rapid surface moisture drying device for traditional Chinese medicine slices according to an embodiment of the present invention includes a body 1 and a support leg 19. A drive shaft 14 is installed in the middle of the body 1. One end of the drive shaft 14 passes through one side of the body 1 and is connected to a motor 12. Several sets of bearing plates 6 are evenly installed on the surface of the drive shaft 14. Air jet plates 15 are symmetrically installed on both ends of one side of the bearing plate 6 at the inner surface of the body 1. Several sets of air outlet nozzles 16 are evenly installed on the surface of the air jet plates 15. A fixedly installed upper part of the other side of the bearing plate 6 at the inner surface of the body 1. A fixed plate 5 has an adjusting screw 8 threadedly connected to its center. Sliding rods 7 are symmetrically slidably connected to both sides of the fixed plate 5. A baffle 2 is connected to the bottom of both the sliding rods 7 and the adjusting screw 8. A flexible head 3 is installed at the bottom of the baffle 2. A drive shaft 14 is mounted on the top of the machine body 1 via a deep groove ball bearing (e.g., model 6208). The shaft end is connected to the motor 12 via a flexible coupling. The drive shaft 14 drives the bearing plate 6 to rotate at a low speed of 5-10 r / min. The rotational stability is ensured through dynamic balancing testing, guaranteeing uniform distribution of the medicinal slices under centrifugal force. Avoid piling up; uniform rotation: low-speed rotation forms a thin layer of medicinal slices on the surface of the carrier tray 6, with each rotation taking 6-12 seconds to ensure consistent hot air contact time and improve drying uniformity; the fixed plate 5 is welded to the top of the machine body 1, with an M20 threaded hole in the middle, the adjusting screw 8 is threaded to the baffle 2, and the sliding rods 7 on both sides (e.g., 10mm in diameter) slide in cooperation with the fixed plate 5, with a stroke of 50mm; soft head 3: the soft head 3 is made of food-grade silicone material (e.g., hardness 40 Shore A), 10mm thick, and is fixed to the bottom of the baffle 2 with bolts, and is flush with the surface of the carrier tray 6. The spacing is adjustable (e.g., 5-25mm); rotating the adjusting screw 8 drives the baffle 2 to move up and down, and the slide bar 7 ensures smooth movement. The spacing between the soft head 3 and the surface of the carrier plate 6 is adjusted according to the thickness of the medicinal slices (e.g., 5mm for thin slices and 25mm for thick slices) to ensure flattening effect; automatic flattening: the soft head 3 blocks medicinal slices that are higher than the set height and forces them to be flattened to a uniform thickness (error ≤1mm), avoiding drying dead corners caused by accumulation and reducing the accumulation rate; flexible contact: the silicone soft head 3 avoids damage to the medicinal slices, especially suitable for fragile medicinal materials such as ginseng and angelica, and the breakage rate is reduced accordingly.

[0030] like Figure 1As shown, several sets of bearing grooves 4 are evenly distributed on the inner surface of the machine body 1. The bearing grooves 4 are rotatably connected to the bearing plate 6. The bearing plate 6 is a stainless steel disc with placement grooves 17 on its surface and φ5mm flow holes 18 evenly distributed at the bottom of the grooves. The grooves are designed to prevent the slices from being thrown out. The bearing plate 6 is fixed to the drive shaft 14 by a key connection, forming a rotating pair with the bearing grooves 4 inside the machine body 1, with a gap of 0.5-1mm. Air jet plate 15: The air jet plate 15 is symmetrically installed on both sides of the bearing plate 6, with air outlet nozzles 16 evenly distributed on its surface, and is connected to the pipeline by clamps. The air jet plate 15 and the bearing plate 6 are rotatably connected to the drive shaft 14. The carrier trays 6 are spaced 50mm apart, and the air nozzles 16 are tilted at a 45° angle toward the carrier trays 6 to ensure that the upper and lower surfaces of the medicinal slices are heated simultaneously. The flow holes 18 allow hot air to penetrate the medicinal slice layer. The hot air flow velocity at the bottom is 1-2m / s, and the flow velocity at the top is 0.5-1m / s, forming convection. Penetration drying: The upper and lower air jet plates 15, in conjunction with the flow holes 18, allow hot air to penetrate the medicinal slice layer (thickness ≤20mm), increasing the moisture evaporation rate and shortening the drying time. Uniform heating: The air nozzles 16 are evenly distributed, reducing the temperature field deviation and the moisture content deviation of the medicinal slices, which is superior to traditional single-sided drying.

[0031] like Figure 1 As shown, the surface of the bearing plate 6 is provided with a placement groove 17.

[0032] like Figure 1 As shown, several sets of flow holes 18 are evenly provided at the bottom of the placement groove 17.

[0033] like Figure 1 As shown, support legs 19 are symmetrically installed on both sides of the bottom of the machine body 1. A cabinet door is hinged to one side of the machine body 1. The inner surface of the machine body 1 is polished to prevent the slices from sticking together. Support legs 19 are welded to the bottom, and rubber pads (e.g., 10mm thick) are added to the bottom of the legs. The machine is fixed to the ground with expansion bolts to ensure the equipment is level. The cabinet door is hinged and the sealing strip (e.g., silicone material) is compressed by 2mm to ensure that the internal hot air does not leak out, resulting in good heat preservation and reduced energy consumption.

[0034] like Figure 1 As shown, an exhaust pipe 13 is installed on one side of the top of the unit 1. The exhaust pipe 13 is equipped with louvers, which can be adjusted to control the amount of moisture discharged, ensuring that the internal humidity is ≤30%RH and accelerating the evaporation of moisture.

[0035] like Figure 1As shown, a heating box 9 is installed on the other side of the top of the unit 1. Several sets of electric heating tubes 11 are installed inside the heating box 9. A fan 10 is installed at the air inlet of the top of the heating box 9. The air outlet of the heating box 9 is connected to the jet plate 15 through a pipe. The heating box 9 is a stainless steel box (e.g., 300mm×200mm×200mm). Three sets of electric heating tubes 11 (e.g., 2kW power per set, 600mm total length) are installed inside, arranged in a U-shape. The air outlet of the heating box 9 is connected to the jet plate 15 through a PVC hose (e.g., 50mm inner diameter). The bending radius of the hose is ≥100mm. The electric heating tubes 11 heat the air to 60-80℃ (adjustable, which can be achieved through a thermostat and temperature sensor, which will not be described in detail here). The fan 10 blows the hot air into the jet plate 15. The hot air circulation system improves the heat utilization rate. The exhaust pipe 13 (e.g., 100mm in diameter) is installed on the top of the unit 1 to remove the hot and humid air and keep the inside dry.

[0036] like Figure 1 As shown, a filter screen is installed at the air inlet of the fan 10. The fan 10 is mounted on top of the heating box 9, and the air inlet is equipped with a metal filter screen (e.g., 0.5mm aperture) with a filtration efficiency ≥90%, preventing dust contamination of the medicinal slices. High-efficiency heating: The electric heating element 11 works in conjunction with the fan 10, ensuring stable hot air temperature and rapid heating. Clean drying: The filter screen removes dust from the air, ensuring the hygiene of the medicinal slices, meeting GMP standards, and reducing the risk of foreign object contamination. Pre-treatment stage: Open the cabinet door, place the medicinal slices in the placement slot 17 of the carrying tray 6, adjust the height of the soft head 3 according to the thickness of the medicinal slices (e.g., adjust to 10mm for licorice slices, 15mm for astragalus slices), set the temperature of the electric heating element 11 to 65℃, the air volume of the fan 10 to 1200m³ / h, and the motor 1... 2. Rotation speed 8 r / min; Drying stage: Start motor 12, the bearing plate 6 rotates, the medicinal slices are spread into a uniform thin layer by the soft head 3, the electric heating tube 11 heats the air, the fan 10 sends air into the air jet plate 15, and the upper and lower air nozzles 16 spray air at the same time. The hot air penetrates the medicinal slice layer, and the medicinal slices receive uniform hot air every revolution during rotation. The moisture is discharged through the exhaust pipe 13; Discharge stage: Drying is completed (moisture content ≤12%), stop the machine, open the cabinet door, take out the medicinal slices from the bearing plate 6, clean the residual medicinal slices on the surface of the soft head 3, check the cleanliness of the filter screen of the fan 10, and replace it if necessary. Through rotation and flattening and double-sided hot air, this device achieves efficient and uniform drying of Chinese medicinal slices, especially with significant advantages in moisture content control and energy consumption. It is suitable for large-scale production of various Chinese medicinal slices.

[0037] Working Principle: In actual use, personnel can place the Chinese herbal medicine slices to be dried into the support tray 6 inside the machine body 1. Heat is then generated by the operation of the electric heating tube 11. This heat is used by the operation of the fan 10 to remove filtered external gas, thus heating the gas. The heated gas then enters the jet plate 15 through a pipe and is ejected from the air outlet 16 on the surface of the jet plate 15. The ejected hot gas flows through the flow holes 18 on the surface of the support tray 6, thereby acting on the bottom and top surfaces of the Chinese herbal medicine slices, achieving all-round heating and drying. Simultaneously, the operation of the motor 12... The drive shaft 14 is rotated, which in turn drives the bearing plate 6 to rotate. This allows different positions on the surface of the bearing plate 6 to move to the air outlet nozzle 16, thus enabling the Chinese herbal medicine pieces at different positions to be fully heated and dried, expanding the overall drying area. At the same time, when the bearing plate 6 rotates, the soft head 3 can block the stacked Chinese herbal medicine pieces, forcing them to flatten. This prevents the pieces in the middle or inside the stack from not being able to contact the hot air, resulting in uneven drying. This improves the overall drying quality and makes the device easier to use. The device has the advantages of material flattening, multiple drying, and comprehensive drying.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for rapidly drying the surface moisture of Chinese herbal medicine slices, comprising a body (1) and supporting legs (19), characterized in that, A drive shaft (14) is installed in the middle of the body (1). One end of the drive shaft (14) passes through one side of the body (1) and is connected to the motor (12). Several sets of bearing plates (6) are evenly installed on the surface of the drive shaft (14). Jet plates (15) are symmetrically installed on both ends of one side of the bearing plate (6) on the inner surface of the body (1). Several sets of air nozzles (16) are evenly installed on the surface of the jet plate (15). A fixing plate (5) is fixedly installed on the upper side of the bearing plate (6) on the inner surface of the body (1). An adjusting screw (8) is threadedly connected to the middle of the surface of the fixing plate (5). Slide rods (7) are symmetrically slidably connected to both sides of the surface of the fixing plate (5). A baffle (2) is connected to the bottom of the slide rod (7) and the bottom of the adjusting screw (8). A soft head (3) is installed at the bottom of the baffle (2).

2. The device for rapid drying of surface moisture of traditional Chinese medicine slices according to claim 1, characterized in that, The inner surface of the body (1) is provided with several sets of bearing grooves (4), which are rotatably connected to the bearing plate (6).

3. The device for rapidly drying the surface moisture of traditional Chinese medicine slices according to claim 1, characterized in that, The surface of the carrier plate (6) is provided with a placement groove (17).

4. The device for rapidly drying the surface moisture of traditional Chinese medicine slices according to claim 3, characterized in that, The bottom of the placement groove (17) is provided with several sets of flow holes (18).

5. The device for rapidly drying the surface moisture of traditional Chinese medicine slices according to claim 1, characterized in that, Support legs (19) are symmetrically installed on both sides of the bottom of the body (1), and a cabinet door is hinged to one side of the surface of the body (1).

6. The device for rapidly drying the surface moisture of traditional Chinese medicine slices according to claim 1, characterized in that, An exhaust pipe (13) is installed on one side of the top of the body (1).

7. The device for rapid drying of surface moisture of traditional Chinese medicine slices according to claim 1, characterized in that, A heating box (9) is installed on the other side of the top of the body (1). Several sets of electric heating tubes (11) are installed inside the heating box (9). A fan (10) is installed at the air inlet on the top of the heating box (9). The air outlet of the heating box (9) is connected to the jet plate (15) through a pipe.

8. The device for rapidly drying the surface moisture of traditional Chinese medicine slices according to claim 7, characterized in that, A filter screen is installed at the air inlet of the fan (10).

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