Drying device for tremella sporocarp polysaccharide production
By using a segmented drying method involving preheating, heating, and constant temperature, the problem of uneven heat distribution during the drying process of Tremella fruiting bodies was solved, achieving efficient and uniform drying, preserving the active ingredients of Tremella fruiting bodies, and improving the extraction quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-03
AI Technical Summary
The uneven heat distribution during the drying process of existing Tremella fuciformis fruiting bodies leads to low drying efficiency and reduces the active ingredients, affecting the quality of subsequent extraction.
The drying process employs a segmented drying method consisting of a preheating drying chamber, a heating drying chamber, and a constant temperature drying chamber. A heat pump dryer provides uniform hot air, and the drying process is carried out through three stages: preheating, heating, and constant temperature, which are respectively achieved by a preheating conveyor belt, a heating conveyor belt, a lower heating conveyor belt, and a constant temperature conveyor belt.
This improved the stability and efficiency of the drying process, ensured that the fruiting bodies of Tremella fuciformis were heated evenly, preserved the active ingredients, and improved the quality of subsequent extraction.
Smart Images
Figure CN224080526U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drying equipment technology, and specifically discloses a drying device for the production of polysaccharides from Tremella fuciformis fruiting bodies. Background Technology
[0002] Tremella polysaccharide is an active polysaccharide extracted from the fruiting body or spores of Tremella fuciformis. Modern structural analysis has shown that Tremella polysaccharide is a heteropolysaccharide, including various components such as acidic heteropolysaccharides, neutral heteropolysaccharides, cell wall polysaccharides, extracellular polysaccharides, and acidic oligosaccharides. Numerous studies at home and abroad have demonstrated that Tremella polysaccharide has excellent physiological effects such as improving human immune function, antiviral, antitumor, antiulcer, lowering blood lipids, lowering blood sugar, and lowering cholesterol, as well as physicochemical functions such as moisturizing, thickening, and emulsifying. In recent years, it has received widespread attention in the fields of food, medicine, and daily chemicals.
[0003] Drying is necessary for the production of polysaccharides from Tremella fuciformis fruiting bodies. Drying effectively removes moisture from the fruiting bodies, reduces their water activity, and thus extends the product's shelf life. Moist fruiting bodies are prone to microbial growth, leading to spoilage, while dried products maintain stable quality for a longer period. Furthermore, during polysaccharide extraction, dried fruiting bodies are easier to pulverize and dissolve, facilitating the full release of polysaccharide components. Additionally, drying removes some impurities, improving the purity and quality of the extract.
[0004] In existing technologies, when drying Tremella fruiting bodies, the fruiting bodies need to be poured onto a plate first, and then the plate is placed inside a drying chamber. The interior of the chamber is heated to dry the fruiting bodies at high temperature. However, the heat distribution inside the chamber is uneven, resulting in some fruiting bodies drying while others remain undried. The drying process can only be stopped once the remaining portion is dry, reducing the drying efficiency of the fruiting bodies. Furthermore, this direct drying method can easily reduce the active ingredients in the fruiting bodies, leading to low extraction quality in the later stages. Utility Model Content
[0005] This invention proposes a drying device for the production of polysaccharides from Tremella fruiting bodies, which can optimize the drying effect of Tremella fruiting bodies and retain the active ingredients in the fruiting bodies, thereby improving the quality of subsequent Tremella fruiting body extraction.
[0006] This utility model is implemented as follows: a drying device for the production of polysaccharides from Tremella fuciformis fruiting bodies includes a preheating drying chamber, a heating drying chamber, and a constant temperature drying chamber; the preheating drying chamber includes an upwardly inclined preheating cavity, a rotatable preheating conveyor belt disposed within the preheating cavity, a first preheating air distribution plate disposed above and parallel to the preheating conveyor belt, and a second preheating air distribution plate disposed within and parallel to the preheating conveyor belt; a feeding port is opened at the top of the preheating cavity facing downwards, and one side of both the first and second preheating air distribution plates is fixedly connected to the inner wall of the preheating cavity;
[0007] The heating and drying chamber includes a heating cavity, an upward heating conveyor belt and a downward heating conveyor belt horizontally staggered from top to bottom within the heating cavity, upward heating air distribution plates horizontally positioned above the upward and downward heating conveyor belts respectively, and downward heating air distribution plates horizontally positioned within the upward and downward heating conveyor belts respectively. One side of each of the upward and downward heating air distribution plates is fixedly connected to the inner wall of the heating cavity. The upward-facing end of the preheating cavity is connected to the heating cavity, and the upward-facing end of the preheating conveyor belt is located above the uppermost upward heating conveyor belt. The upward and downward heating conveyor belts run in opposite directions.
[0008] The constant temperature drying chamber includes an upwardly inclined constant temperature cavity, a rotatable constant temperature conveyor belt located within the constant temperature cavity, a first constant temperature air distribution plate located above and parallel to the constant temperature conveyor belt, and a second constant temperature air distribution plate located within and parallel to the constant temperature conveyor belt. The top of the downward-facing end of the constant temperature cavity is connected to the heating cavity, and the downward-facing end of the constant temperature conveyor belt is located below the lowest heating conveyor belt. A discharge port is provided at the bottom of the other end of the constant temperature cavity. One side of both the first and second constant temperature air distribution plates is fixedly connected to the inner wall of the constant temperature cavity. A heat pump dryer that provides hot air is provided on the preheating cavity, heating cavity, and constant temperature cavity respectively.
[0009] As a preferred embodiment of the drying device for producing polysaccharides from Tremella fuciformis according to this utility model, the preheating conveyor belt, the heating conveyor belt, the heating conveyor belt, and the constant temperature conveyor belt are all made of 304 stainless steel mesh belt conveyors.
[0010] As a preferred embodiment of the drying device for producing polysaccharides from Tremella fuciformis according to this utility model, the outer walls of the preheating conveyor belt and the constant temperature conveyor belt are provided with baffles.
[0011] As a preferred embodiment of the drying device for producing polysaccharides from Tremella fuciformis according to this utility model, air distribution cavities are formed within the interlayer of the first preheating air distribution plate, the second preheating air distribution plate, the rising temperature air distribution plate, the lower rising temperature air distribution plate, the first constant temperature air distribution plate, and the second constant temperature air distribution plate. Air distribution holes communicating with the air distribution cavities are respectively formed at the bottom of the first preheating air distribution plate, the top of the second preheating air distribution plate, the bottom of the rising temperature air distribution plate, the top of the lower rising temperature air distribution plate, the bottom of the first constant temperature air distribution plate, and the top of the second constant temperature air distribution plate.
[0012] In a preferred embodiment of the drying device for producing polysaccharides from Tremella fuciformis according to this utility model, the output end of the heat pump dryer in the preheating chamber is connected to the air distribution cavities in the first and second preheating air distribution plates via pipes, and the input end of the heat pump dryer is connected to the bottom of the preheating chamber; the output end of the heat pump dryer in the heating chamber is connected to the air distribution cavities in all the rising and lower heating air distribution plates via pipes, and the input end of the heat pump dryer is connected to the bottom of the heating chamber; the output end of the heat pump dryer in the constant temperature chamber is connected to the air distribution cavities in the first and second constant temperature air distribution plates via pipes, and the input end of the heat pump dryer is connected to the bottom of the constant temperature chamber.
[0013] As a preferred embodiment of the drying device for producing polysaccharides from Tremella fuciformis according to this utility model, temperature and humidity sensors are provided in the preheating chamber, the heating chamber, and the constant temperature chamber.
[0014] As a preferred embodiment of the drying device for producing polysaccharides from Tremella fuciformis according to this utility model, the bottom of the preheating drying chamber, the heating drying chamber, and the constant temperature drying chamber are provided with a base, and the base is provided with a bracket fixedly connected to the bottom of the preheating chamber, the heating chamber, and the constant temperature chamber.
[0015] The beneficial effects of this utility model are:
[0016] This invention utilizes a preheating drying chamber, a heating drying chamber, and a constant temperature drying chamber; it starts a heat pump dryer, and hot air is evenly distributed to all parts of the preheating chamber, heating chamber, and constant temperature chamber; the fruiting bodies of Tremella fuciformis are dried sequentially in the preheating drying chamber, heating drying chamber, and constant temperature drying chamber, which can improve the stability and controllability of the drying process, and the drying is continuous, efficient, and easy to process and dry evenly.
[0017] Meanwhile, by adopting a segmented drying method, which involves preheating, drying at a higher temperature, and finally drying at a constant temperature, the drying effect of Tremella fruiting bodies can be optimized and the active ingredients in the fruiting bodies can be preserved, thereby improving the quality of Tremella fruiting body extraction in the later stages. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 This is a schematic diagram of the structure of the heating conveyor belt and the lower heating air distribution plate of this utility model.
[0021] Figure 3 This is a schematic diagram of the structure of the second preheating air distribution plate of this utility model.
[0022] Figure 4 for Figure 1 A magnified structural diagram of point A in the middle.
[0023] The markings in the diagram are as follows: 1. Preheating drying chamber; 2. Heating drying chamber; 3. Constant temperature drying chamber; 4. Preheating cavity; 5. Preheating conveyor belt; 6. First preheating air distribution plate; 7. Second preheating air distribution plate; 8. Feeding port; 9. Heating cavity; 10. Heating conveyor belt; 11. Lower heating conveyor belt; 12. Heating air distribution plate; 13. Lower heating air distribution plate; 14. Constant temperature cavity; 15. Constant temperature conveyor belt; 16. First constant temperature air distribution plate; 17. Second constant temperature air distribution plate; 18. Discharge port; 19. Heat pump dryer; 20. Baffle; 21. Air distribution cavity; 22. Air distribution hole; 23. Temperature and humidity sensor; 24. Base; 25. Support. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0025] Please see Figure 1-4 A drying device for producing polysaccharides from Tremella fuciformis fruiting bodies includes a preheating drying chamber 1, a heating drying chamber 2, and a constant temperature drying chamber 3. The preheating drying chamber 1 includes an upwardly inclined preheating cavity 4, a rotatable preheating conveyor belt 5 disposed within the preheating cavity 4, a first preheating air distribution plate 6 disposed above and parallel to the preheating conveyor belt 5, and a second preheating air distribution plate 7 disposed within and parallel to the preheating conveyor belt 5. A feeding port 8 is opened at the top of the preheating cavity 4 at the downward end, and one side of both the first preheating air distribution plate 6 and the second preheating air distribution plate 7 are fixedly connected to the inner wall of the preheating cavity 4.
[0026] The heating and drying chamber 2 includes a heating chamber 9, an upward heating conveyor belt 10 and a lower heating conveyor belt 11 horizontally staggered from top to bottom within the heating chamber 9, an upward heating air distribution plate 12 horizontally positioned above the upward heating conveyor belt 10 and the lower heating conveyor belt 11 respectively, and a lower heating air distribution plate 13 horizontally positioned within the upward heating conveyor belt 10 and the lower heating conveyor belt 11 respectively. One side of the upward heating air distribution plate 12 and the lower heating air distribution plate 13 are fixedly connected to the inner wall of the heating chamber 9. The upward end of the preheating chamber 4 is connected to the heating chamber 9, and the upward end of the preheating conveyor belt 5 is located above the uppermost upward heating conveyor belt 10. The upward heating conveyor belt 10 and the lower heating conveyor belt 11 run in opposite directions.
[0027] The constant temperature drying chamber 3 includes an upwardly inclined constant temperature cavity 14, a rotatable constant temperature conveyor belt 15 located inside the constant temperature cavity 14, a first constant temperature air distribution plate 16 located above and parallel to the constant temperature conveyor belt 15, and a second constant temperature air distribution plate 17 located inside and parallel to the constant temperature conveyor belt 15. The top of the downward-facing end of the constant temperature cavity 14 is connected to the heating cavity 9, and the downward-facing end of the constant temperature conveyor belt 15 is located below the lowest heating conveyor belt 11. The bottom of the other end of the constant temperature cavity 14 is provided with a discharge port 18, and one side of the first constant temperature air distribution plate 16 and the second constant temperature air distribution plate 17 are both fixedly connected to the inner wall of the constant temperature cavity 14. The preheating cavity 4, the heating cavity 9, and the constant temperature cavity 14 are respectively provided with heat pump dryers 19 that provide hot air.
[0028] In this embodiment: the heat pump dryer 19 is activated in the preheating chamber 4, the heating chamber 9, and the constant temperature chamber 14 respectively. Hot air is evenly distributed to the preheating chamber 4, the heating chamber 9, and the constant temperature chamber 14 through the first preheating air distribution plate 6, the second preheating air distribution plate 7, the heating air distribution plate 12, the heating air distribution plate 13, the first constant temperature air distribution plate 16, and the second constant temperature air distribution plate 17 respectively. Furthermore, by adjusting the drying parameters of the heat pump dryer 19, the temperature in the preheating chamber 4 is lower than the temperature in the heating chamber 9. The temperature inside the constant temperature chamber 14 is lower than the temperature inside the preheating chamber 4. The fruiting bodies of the silver ear fungus to be dried are fed into the preheating chamber 4 through the feeding port 8 and placed above the preheating conveyor belt 5 for conveying. The fruiting bodies of the silver ear fungus on the preheating conveyor belt 5 are conveyed into the constant temperature drying chamber 3. During the conveying process, the hot air flowing out from the first preheating air distribution plate 6 and the second preheating air distribution plate 7 comes into full contact with the fruiting bodies of the silver ear fungus, which facilitates the preliminary preheating and drying of the fruiting bodies of the silver ear fungus. The preheated and dried fruiting bodies of the silver ear fungus are transported by the preheating conveyor belt 5. The fruiting bodies are fed into the heating chamber 9, where the rising heating conveyor belt 10 and the lower heating conveyor belt 11 transport them sequentially. Hot air flowing from the rising heating air distribution plate 12 and the lower heating air distribution plate 13 comes into contact with the fruiting bodies, facilitating heating and drying. Furthermore, the height difference between the rising heating conveyor belt 10 and the lower heating conveyor belt 11 allows the fruiting bodies to be flipped during transport, making them easier to dry. The fruiting bodies of Tremella are heated evenly. After being heated in the heating chamber 9, the fruiting bodies are transported to the constant temperature conveyor belt 15 in the constant temperature chamber 14. The air flowing out from the first constant temperature air distribution plate 16 and the second constant temperature air distribution plate 17 heats and dries the fruiting bodies at a constant temperature. By adopting a segmented drying method, which involves preheating and drying, then heating and drying, and finally constant temperature drying, the drying effect of the fruiting bodies can be optimized and the active ingredients in the fruiting bodies can be preserved, thereby improving the quality of the later extraction of the fruiting bodies.
[0029] As a technical optimization of this utility model, the preheating conveyor belt 5, the rising temperature conveyor belt 10, the lower rising temperature conveyor belt 11, and the constant temperature conveyor belt 15 are all made of 304 stainless steel mesh belt conveyor.
[0030] In this embodiment, the 304 stainless steel mesh belt conveyor not only has heat resistance, but also the mesh openings on the 304 stainless steel mesh belt conveyor allow hot air to pass through easily, which is conducive to the hot air coming into full contact with the fruiting body of the silver ear fungus, and facilitates the drying of the fruiting body of the silver ear fungus.
[0031] As a technical optimization of this utility model, the outer walls of the preheating conveyor belt 5 and the constant temperature conveyor belt 15 are provided with baffles 20.
[0032] In this embodiment, the baffle 20 facilitates the stable transport of the silver ear fruiting bodies on the preheating conveyor belt 5 and the constant temperature conveyor belt 15, preventing the silver ear fruiting bodies from sliding on the preheating conveyor belt 5 and the constant temperature conveyor belt 15.
[0033] As a technical optimization of this utility model, air distribution chambers 21 are opened in the interlayer of the first preheating air distribution plate 6, the second preheating air distribution plate 7, the rising temperature air distribution plate 12, the lower rising temperature air distribution plate 13, the first constant temperature air distribution plate 16, and the second constant temperature air distribution plate 17. Air distribution holes 22 communicating with the air distribution chambers 21 are respectively opened at the bottom of the first preheating air distribution plate 6, the top of the second preheating air distribution plate 7, the bottom of the rising temperature air distribution plate 12, the top of the lower rising temperature air distribution plate 13, the bottom of the first constant temperature air distribution plate 16, and the top of the second constant temperature air distribution plate 17. The output end of the heat pump dryer 19 on the preheating chamber 4 is connected to the heat pump dryer 19 via pipes. The air distribution chambers 21 in the first preheating air distribution plate 6 and the second preheating air distribution plate 7 are connected, and the input end of the heat pump dryer 19 is connected to the bottom of the preheating chamber 4; the output end of the heat pump dryer 19 on the heating chamber 9 is connected to the air distribution chambers 21 in all the rising air distribution plates 12 and all the lower rising air distribution plates 13 through pipes, and the input end of the heat pump dryer 19 is connected to the bottom of the heating chamber 9; the output end of the heat pump dryer 19 on the constant temperature chamber 14 is connected to the air distribution chambers 21 in the first constant temperature air distribution plate 16 and the second constant temperature air distribution plate 17 through pipes, and the input end of the heat pump dryer 19 is connected to the bottom of the constant temperature chamber 14.
[0034] In this embodiment: all heat pump dryers 19 are started, and each heat pump dryer 19 supplies hot air to the air distribution chamber 21. The hot air in the air distribution chamber 21 flows out through multiple air distribution holes 22, which facilitates the preheating of the Tremella fruiting bodies in the preheating chamber 4, the heating of the Tremella fruiting bodies in the heating chamber 9, and the constant temperature heating of the Tremella fruiting bodies in the constant temperature chamber 14, thereby achieving the drying effect of the Tremella fruiting bodies. A filter cover (not shown in the figure) is provided on the pipe at the input end of the heat pump dryer 19 to prevent... Impurities are prevented from entering the heat pump dryer 19; and all input terminals of the heat pump dryer 19 are connected to the preheating chamber 4, the heating chamber 9, and the constant temperature chamber 14 respectively, which can ensure that the hot air can circulate evenly in the preheating chamber 4, the heating chamber 9, and the constant temperature chamber 14, and remove moisture from the hot air; at the same time, the heat pump dryer 19 can precisely control the temperature and humidity in the preheating chamber 4, the heating chamber 9, and the constant temperature chamber 14 to meet the drying requirements of the Tremella fruiting body and avoid overheating or insufficient drying; the heat pump dryer 19 adopts existing technology.
[0035] As a technical optimization of this utility model, temperature and humidity sensors 23 are provided in the preheating chamber 4, the heating chamber 9, and the constant temperature chamber 14.
[0036] In this embodiment: the temperature inside the preheating chamber 4, the heating chamber 9, and the constant temperature chamber 14 can be easily monitored in real time through temperature sensors. The heating chamber 9 is equipped with a PLC touch screen all-in-one machine that is electrically connected to all temperature sensors.
[0037] As a technical optimization of this utility model, the bottom of the preheating drying chamber 1, the heating drying chamber 2, and the constant temperature drying chamber 3 is provided with a base 24, and the base 24 is provided with a bracket 25 that is fixedly connected to the bottom of the preheating chamber 4, the heating chamber 9, and the constant temperature chamber 14.
[0038] In this embodiment, the preheating drying chamber 1, the heating drying chamber 2, and the constant temperature drying chamber 3 can be easily installed onto the base 24 via the bracket 25, ensuring the stability of the preheating chamber 4, the heating chamber 9, and the constant temperature chamber 14.
[0039] Working principle and usage process of this utility model:
[0040] The heat pump dryer 19 is started in the preheating chamber 4, heating chamber 9, and constant temperature chamber 14 respectively, and the drying parameters of the heat pump dryer 19 are adjusted. Hot air enters the air distribution chamber 21 and flows out through the air distribution holes 22, so that the hot air is evenly distributed in the preheating chamber 4, heating chamber 9, and constant temperature chamber 14. The fruiting bodies of the Tremella fuciformis to be dried are fed into the preheating chamber 4 through the feeding port 8 and placed above the preheating conveyor belt 5 for conveying. The hot air flowing out from the first preheating air distribution plate 6 and the second preheating air distribution plate 7 is in full contact with the fruiting bodies of the Tremella fuciformis, which facilitates the preliminary preheating and drying of the fruiting bodies of the Tremella fuciformis. The preheated and dried fruiting bodies of the Tremella fuciformis are conveyed to the heating chamber 9 by the preheating conveyor belt 5. The rising heating conveyor belt 10 and the lower heating conveyor belt 11 in the heating chamber 9 are used for conveying in sequence. The hot air flowing out from the rising heating air distribution plate 12 and the lower heating air distribution plate 13 is used for conveying. The hot air comes into contact with the fruiting bodies of Tremella fuciformis, facilitating the heating and drying process. Furthermore, the height difference between the rising and lower heating conveyor belts 10 and 11 allows the fruiting bodies to be flipped as they fall, ensuring even heating. After heating in the heating chamber 9, the fruiting bodies are conveyed to the constant-temperature conveyor belt 15 in the constant-temperature chamber 14. Air from the first and second constant-temperature air distribution plates 16 and 17 further heats and dries the fruiting bodies at a constant temperature. By employing a segmented drying method—preheating, then heating, and finally constant-temperature drying—the drying effect of the fruiting bodies can be optimized, preserving the active ingredients and improving the quality of subsequent extraction.
[0041] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0042] However, the above are merely specific embodiments of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A drying device for producing polysaccharides from Tremella fuciformis fruiting bodies, characterized in that: The application relates to a drying room, which comprises a preheating drying chamber (1), a temperature-rising drying chamber (2) and a constant-temperature drying chamber (3); the preheating drying chamber (1) comprises a preheating cavity (4) arranged in an upward inclination, a preheating conveying belt (5) rotatably arranged in the preheating cavity (4), a first preheating cloth air distribution plate (6) arranged above the preheating conveying belt (5) and parallel to the preheating conveying belt (5), and a second preheating cloth air distribution plate (7) arranged in the preheating conveying belt (5) and parallel to the preheating conveying belt (5); a feeding port (8) is formed in the top of the downward end of the preheating cavity (4), and one side of each of the first preheating cloth air distribution plate (6) and the second preheating cloth air distribution plate (7) is fixedly connected with the inner wall of the preheating cavity (4); the temperature-rising drying chamber (2) comprises a temperature-rising cavity (9), an upper temperature-rising conveying belt (10) and a lower temperature-rising conveying belt (11) which are horizontally and staggeredly arranged in the temperature-rising cavity (9) from top to bottom, an upper temperature-rising cloth air distribution plate (12) horizontally arranged above the upper temperature-rising conveying belt (10), a lower temperature-rising cloth air distribution plate (13) horizontally arranged in the upper temperature-rising conveying belt (10), an upper temperature-rising cloth air distribution plate (12) horizontally arranged above the lower temperature-rising conveying belt (11), and a lower temperature-rising cloth air distribution plate (13) horizontally arranged in the lower temperature-rising conveying belt (11); one side of each of the upper temperature-rising cloth air distribution plate (12) and the lower temperature-rising cloth air distribution plate (13) is fixedly connected with the inner wall of the temperature-rising cavity (9); the upward end of the preheating cavity (4) is communicated with the temperature-rising cavity (9), the upward end of the preheating conveying belt (5) is located above the uppermost upper temperature-rising conveying belt (10), and the running directions of the upper temperature-rising conveying belt (10) and the lower temperature-rising conveying belt (11) are opposite; the constant-temperature drying chamber (3) comprises a constant-temperature cavity (14) arranged in an upward inclination, a constant-temperature conveying belt (15) rotatably arranged in the constant-temperature cavity (14), a first constant-temperature cloth air distribution plate (16) arranged above the constant-temperature conveying belt (15) and parallel to the constant-temperature conveying belt (15), and a second constant-temperature cloth air distribution plate (17) arranged in the constant-temperature conveying belt (15) and parallel to the constant-temperature conveying belt (15); the top of the downward end of the constant-temperature cavity (14) is communicated with the temperature-rising cavity (9), the downward end of the constant-temperature conveying belt (15) is located below the lowermost lower temperature-rising conveying belt (11), and the bottom of the other end of the constant-temperature cavity (14) is provided with a discharging port (18); one side of each of the first constant-temperature cloth air distribution plate (16) and the second constant-temperature cloth air distribution plate (17) is fixedly connected with the inner wall of the constant-temperature cavity (14); the preheating cavity (4), the temperature-rising cavity (9) and the constant-temperature cavity (14) are respectively provided with heat pump dryers (19) for providing hot air.
2. The drying device for producing tremella fruiting body polysaccharide according to claim 1, characterized in that: The preheating conveying belt (5), the upper temperature-rising conveying belt (10), the lower temperature-rising conveying belt (11) and the constant-temperature conveying belt (15) are all made of 304 stainless steel mesh belt conveyors.
3. The drying device for producing tremella fruiting body polysaccharide according to claim 1, characterized in that: The outer walls of the preheating conveying belt (5) and the constant-temperature conveying belt (15) are provided with blocking edges (20).
4. The drying device for producing tremella fruiting body polysaccharide according to claim 1, characterized in that: The first preheating cloth air distribution plate (6), the second preheating cloth air distribution plate (7), the upper temperature rising cloth air distribution plate (12), the lower temperature rising cloth air distribution plate (13), the first constant temperature cloth air distribution plate (16), and the second constant temperature cloth air distribution plate (17) are provided with cloth air distribution cavities (21) in the interlayers, and the bottom of the first preheating cloth air distribution plate (6), the top of the second preheating cloth air distribution plate (7), the bottom of the upper temperature rising cloth air distribution plate (12), the top of the lower temperature rising cloth air distribution plate (13), the bottom of the first constant temperature cloth air distribution plate (16), and the top of the second constant temperature cloth air distribution plate (17) are respectively provided with cloth air distribution holes (22) in communication with the cloth air distribution cavities (21).
5. The drying device for producing tremella fruiting body polysaccharide according to claim 4, characterized in that: The output end of the heat pump drying machine (19) on the preheating cavity (4) is in communication with the cloth air distribution cavities (21) in the first preheating cloth air distribution plate (6) and the second preheating cloth air distribution plate (7) through pipelines, and the input end of the heat pump drying machine (19) is in communication with the bottom of the preheating cavity (4); the output end of the heat pump drying machine (19) on the temperature rising cavity (9) is in communication with the cloth air distribution cavities (21) in all the upper temperature rising cloth air distribution plates (12) and all the lower temperature rising cloth air distribution plates (13) through pipelines, and the input end of the heat pump drying machine (19) is in communication with the bottom of the temperature rising cavity (9); the output end of the heat pump drying machine (19) on the constant temperature cavity (14) is in communication with the cloth air distribution cavities (21) in the first constant temperature cloth air distribution plate (16) and the second constant temperature cloth air distribution plate (17) through pipelines, and the input end of the heat pump drying machine (19) is in communication with the bottom of the constant temperature cavity (14).
6. The drying device for producing tremella fruiting body polysaccharide according to claim 1, characterized in that: The preheating cavity (4), the temperature rising cavity (9), and the constant temperature cavity (14) are provided with temperature and humidity sensors (23) therein.
7. The drying device for producing tremella fruiting body polysaccharide according to claim 1, characterized in that: The preheating drying chamber (1), the temperature rising drying chamber (2), and the constant temperature drying chamber (3) are provided with bases (24) at the bottoms, and the bases (24) are provided with supports (25) fixedly connected with the bottoms of the preheating cavity (4), the temperature rising cavity (9), and the constant temperature cavity (14).