Low-temperature drying device for fungus solid-state fermentation products

By designing a feeding hopper and step-by-step conveying mechanism, combined with thermal radiation and hot air drying technology, the problem of poor raw material drying in existing equipment is solved, uniform and efficient drying of raw materials is achieved, and the quality and storage conditions of materials are ensured.

CN222279218UActive Publication Date: 2024-12-31SHANDONG KANGMU MICROBIOLOGY TECH CO LTD
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Patent Information

Application Number
CN202421539155.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-02
Publication Date
2024-12-31
Estimated Expiration
2034-07-02

AI Technical Summary

Technical Problem

During the drying process of existing low-temperature drying equipment, the raw materials accumulate due to gravity, and cannot be fully blown and dried, resulting in poor drying effect and affecting storage.

Method used

A low-temperature drying device including a feeding hopper, a step-by-step conveying mechanism and a discharge hopper is designed to achieve uniform drying of raw materials through a heat radiation discharge pipe and a hot air fan, and water vapor is discharged through the air outlet to improve the drying effect.

Benefits of technology

It realizes uniform drying of raw materials and rapid moisture evaporation, improves the drying effect, avoids dust overflow, and ensures efficient drying of materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a low-temperature drying device for fungus solid state fermentation products, which relates to the technical field of fungus solid state fermentation and comprises a heat preservation box body, a feeding mechanism is arranged at the top of the heat preservation box body, and a mesh belt type step-by-step conveying mechanism is arranged in the heat preservation box body. And a heat radiation calandria and a hot air box which are used for drying the raw materials are arranged in the mesh belt type step-by-step conveying mechanism, a discharging hopper is arranged at the bottom of the heat preservation box body, a second blade roller is rotationally installed in the discharging hopper, and an air outlet is formed in the end, away from the feeding mechanism, of the top of the heat preservation box body. According to the design scheme, through the design that the step-by-step conveying mechanism is arranged in the heat preservation box body, raw materials are conveyed downwards step by step, heat radiation drying is carried out on the raw materials through the heat radiation calandria in the conveying process, and constant-temperature hot air cross-ventilation drying is carried out on the raw materials through the hot-air blower; and moisture in the raw materials can be quickly evaporated to form water vapor, so that the drying effect is effectively improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of fungus solid-state fermentation, in particular to a low-temperature drying device for fungus solid-state fermentation products. Background Art

[0002] Fungal solid-state fermentation products are rich in biologically active substances. In order to retain the biological activity of the fermented materials during drying, low-temperature drying is usually required. Generally, the material temperature is required not to exceed 60°C during drying.

[0003] CN 117870285 A discloses a constant low-temperature drying device for fermented feed production, comprising a horizontal drying box, a main pipe is provided at the bottom of the horizontal drying box, the main pipe is connected to an external blower, a jet plate is provided in the horizontal drying box, a plurality of exhaust holes are provided on the surface of the jet plate, and the exhaust holes are connected to the main pipe; a feed inlet is provided at one end of the horizontal drying box, and a discharge port is provided below the other end of the horizontal drying box; a double spiral unit is provided on the jet plate, etc. The low-temperature drying device transports the raw materials through two sets of spiral push rods, and at the same time, the exhaust holes eject airflow with a temperature of 55-65°C, so that the feed raw materials are dried at a constant low temperature state, the airflow impacts the raw materials, blows the raw materials up, and makes the raw materials in a boiling state, the airflow can flow along the gaps between the raw materials, taking care of each raw material, and retaining the beneficial microorganisms in the fermented materials to the maximum extent under the premise of ensuring the moisture content of the finished product.

[0004] However, when the above-mentioned low-temperature drying equipment dries the raw materials, the raw materials will accumulate at the bottom of the spiral push rod under the action of gravity, and the materials between the jet plate and the spiral feed rod cannot be blown up, resulting in poor drying effect of some raw materials, which is not conducive to storage. Utility Model Content

[0005] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a low-temperature drying device for solid-state fermented feed.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a low-temperature drying device for fungal solid-state fermentation products, comprising a heat-insulating box body, a feeding mechanism is arranged on the top of the heat-insulating box body, the feeding mechanism comprises a feeding hopper, a first blade roller is rotatably mounted on the bottom end of the feeding hopper, a step-by-step conveying mechanism is arranged in the heat-insulating box body, a heat radiation exhaust pipe and a hot air box for drying the raw materials are arranged inside the step-by-step conveying mechanism, a discharge hopper is arranged at the bottom of the heat-insulating box body, a second blade roller is rotatably mounted inside the discharge hopper, and an air outlet is opened at one end of the top of the heat-insulating box body away from the feeding mechanism.

[0007] Furthermore, support frames are fixedly installed on the front and rear sides of the feeding hopper, and the support frames are fixedly installed on the top left end of the insulation box body. A feed port is opened at the top center position of the feeding hopper, and a material distributor is provided between the feed port and the first blade roller. The material distributor is rotatably installed in the feeding hopper, and a first motor is fixedly installed on the support frame, and a power output shaft of the first motor is connected to the rotating shaft of the material distributor. A first pulley is fixedly installed on the rotating shaft of the material distributor, and a second pulley is fixedly installed on the rotating shaft of the first blade roller. The first pulley and the second pulley are connected by a belt drive.

[0008] Furthermore, the step-by-step conveying mechanism includes a first, second, third, fourth and fifth conveyor belts arranged in sequence from top to bottom, and several groups of the conveyor belts are staggered in the heat preservation box. The first conveyor belt, the third conveyor belt and the fifth conveyor belt are connected to each other through a first transmission component, and the rotating shaft of the fifth conveyor belt is connected to the power output shaft of the second motor. The second motor is fixedly installed on the outer wall of the heat preservation box. The second conveyor belt and the fourth conveyor belt are connected to each other through a second transmission component, and the rotating shaft of the fourth conveyor belt is connected to the power output shaft of the third motor. The third motor is fixedly installed on the outer wall of the heat preservation box.

[0009] Furthermore, a material leveling plate is provided at one end of the first conveyor mesh belt close to the feeding hopper, and the material leveling plate is fixedly mounted on the inner wall of the heat preservation box body. The material on the first conveyor mesh belt is further evenly spread through the material leveling plate so that the material can be evenly dried.

[0010] Furthermore, the heat radiation pipes are respectively arranged inside the first conveyor mesh belt, the second conveyor mesh belt and the fourth conveyor mesh belt, and the heat radiation pipes are interconnected. A water inlet is fixedly installed on the upper end of the front side wall of the thermal insulation box body, and the water inlet is connected to the heat radiation pipe at the upper end. A water outlet is fixedly installed on the lower end of the front side wall of the thermal insulation box body, and the water outlet is connected to the heat radiation pipe at the lower end.

[0011] Furthermore, the hot air blowers are respectively arranged inside the third conveyor mesh belt and the fifth conveyor mesh belt, and a first air guide baffle is provided below the third conveyor mesh belt, and the first air guide baffle is fixedly installed on the left inner wall of the thermal insulation box body.

[0012] Furthermore, a plurality of groups of mesh belt brushes are fixedly installed on the third conveyor mesh belt.

[0013] Furthermore, a second air guide baffle is provided above the fifth conveyor mesh belt, and the second air guide baffle is fixedly mounted on the right inner wall of the thermal insulation box body.

[0014] Furthermore, sprockets are rotatably installed at both ends of the inner walls on the front and rear sides of the insulation box body, the sprockets on the same side are connected to each other by chains, a scraper plate is fixedly installed on the chain, and a fourth motor for driving the sprocket is fixedly installed on the front outer wall of the insulation box body.

[0015] Furthermore, the discharge hopper is fixedly mounted on the right end of the bottom of the heat preservation box body, and a fifth motor is fixedly mounted on the outer wall of the discharge hopper, and a power output shaft of the fifth motor is connected to the rotating shaft of the second blade roller.

[0016] The beneficial effects of the utility model are:

[0017] 1. The design of the utility model is that a first blade roller is rotatably installed at the bottom of the feeding hopper, and a second blade roller is rotatably installed in the discharging hopper. The second blade roller and the first blade roller have a common function, which is to prevent the wind sent into the drying box by the blower through the bellows inside the third mesh belt and the fifth mesh belt from overflowing from the feed port and the discharge port with the dust in the box. At the same time, the wind pressure at the outlet is higher than the wind pressure at the inlet and outlet of the insulation box, so that the interior of the insulation box is in a negative pressure state, further preventing the dust in the box from overflowing. In addition, the material leveler in the feeding hopper cooperates with the first blade roller to evenly spread the material to be dried on the first layer of the mesh belt of the step-by-step conveying mechanism, so that the material can be evenly dried.

[0018] 2. The design of the utility model is designed with a step-by-step conveying mechanism in the heat preservation box. The raw materials are conveyed downward step by step. The moving path of the raw materials is extended to increase the drying time of the raw materials. During the conveying process, the raw materials are dried by thermal radiation through the heat radiation exhaust pipe and by constant temperature hot air convection drying through the hot air blower. The moisture in the raw materials will evaporate quickly to form water vapor, which effectively improves the drying effect. The water vapor is discharged outward through the air outlet, thereby realizing the function of active drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 3 It is the front view of the utility model;

[0023] Figure 4 It is the front view of the utility model;

[0024] Figure 5 It is a top view of the utility model;

[0025] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure in the AA direction;

[0026] Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0027] Figure 8 for Figure 7 A partial enlarged view of the middle C area.

[0028] In the figure: 1. insulation box, 2. feeding hopper, 3. first blade roller, 4. support frame, 5. feeding port, 6. material distributor, 7. first motor, 8. first pulley, 9. second pulley, 10. belt, 11. first conveyor mesh belt, 111. material distributor plate, 12. second conveyor mesh belt, 13. third conveyor mesh belt, 131. mesh belt brush, 14. fourth conveyor mesh belt, 15. fifth conveyor mesh belt, 16. first transmission assembly, 17. second motor, 18. second transmission assembly, 19. third motor, 20. heat radiation exhaust pipe, 21. water inlet, 22. water outlet, 23. hot air blower, 24. first air guide baffle, 25. second air guide baffle, 26. sprocket, 27. chain, 28. scraper plate, 29. fourth motor, 30. discharge hopper, 31. second blade roller, 32. fifth motor, 33. air outlet. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0030] according to Figure 1-8 As shown, a low-temperature drying device for fungal solid-state fermentation products comprises a heat preservation box 1, a feeding mechanism is arranged on the top of the heat preservation box 1, the feeding mechanism comprises a feeding hopper 2, a first blade roller 3 is rotatably mounted on the bottom end of the feeding hopper 2, a step-by-step conveying mechanism is arranged inside the heat preservation box 1, a heat radiation exhaust pipe 20 and a hot air box 23 for drying the raw materials are arranged inside the step-by-step conveying mechanism, a discharge hopper 30 is arranged at the bottom of the heat preservation box 1, a second blade roller 31 is rotatably mounted inside the discharge hopper 30, and an air outlet 33 is opened at one end of the top of the heat preservation box 1 away from the feeding mechanism.

[0031] In the above specific embodiment, the air outlet 33 is externally connected to a cyclone dust collector and a pulse dust collector, and the material inlet and outlet of the heat preservation box 1 are sealed by the first blade roller 3 and the second blade roller 31, so that the wind pressure at the air outlet 33 is higher than the wind pressure at the material inlet and outlet of the heat preservation box 1, so that the interior of the heat preservation box 1 is in a negative pressure state. Solid fungal fermentation will produce fine spore powder. The device can collect the spore powder discharged with the air from the air outlet 33, thereby avoiding the overflow of fine dust. The raw materials are transported downward step by step in the heat preservation box. During the transportation process, the raw materials are dried at low temperature by the heat radiation exhaust pipe 20 and the hot air blower 23. The moisture in the raw materials will evaporate quickly to form water vapor, and the water vapor will be discharged to the outside through the air outlet 33.

[0032] In this embodiment, support frames 4 are fixedly installed on the front and rear sides of the feeding hopper 2, and the support frame 4 is fixedly installed on the top left end of the heat preservation box 1. A feed port 5 is opened at the top center of the feeding hopper 2, and a material distributor 6 is provided between the feed port 5 and the first blade roller 3. The material distributor 6 preferably adopts a coaxial reverse blade auger, and the material distributor 6 is rotatably installed in the feeding hopper 2. A first motor 7 is fixedly installed on the support frame 4, and the power output shaft of the first motor 7 is connected to the rotating shaft of the material distributor 6 through a coupling. The rotating shaft of the material distributor 6 is fixedly installed with a first Pulley 8, a second pulley 9 is fixedly installed on the rotating shaft of the first blade roller 3, the first pulley 8 and the second pulley 9 are connected by a belt 10, the raw material is put into the feeding hopper 2 through the feeding port 5, the material distributor 6 is driven to rotate by the first motor 7, and the raw material is transported to the two ends of the feeding hopper 2 through the material distributor 6, so that the raw material falls evenly onto the first blade roller 3, and the coordination of the pulley and the belt will drive the first blade roller 3 to rotate synchronously when the material distributor 6 rotates, so that the material on the first blade roller 3 is evenly sprinkled onto the step-by-step conveying mechanism.

[0033] In this embodiment, the step-by-step conveying mechanism includes the first, second, third, fourth and fifth conveyor mesh belts arranged in sequence from top to bottom. Depending on the site conditions and production requirements, the conveyor mesh belt can be set up with more than five layers. The preferred mesh belt is a stainless steel woven mesh belt. Several groups of conveyor mesh belts are staggered and arranged in the insulation box 1. The first conveyor mesh belt 11, the third conveyor mesh belt 13 and the fifth conveyor mesh belt 15 are connected to each other through the first transmission assembly 16. The rotating shaft of the fifth conveyor mesh belt 15 is connected to the power output shaft of the second motor 17 through a coupling. The second motor 17 is fixedly installed in the insulation box. 1, the second conveyor mesh belt 12 and the fourth conveyor mesh belt 14 are connected to each other through the second transmission assembly 18, the rotating shaft of the fourth conveyor mesh belt 14 is connected to the power output shaft of the third motor 19 through a coupling, and the third motor 19 is fixedly installed on the outer wall of the heat preservation box body 1, the first, third and fifth conveyor mesh belts are synchronously driven by the second motor 17, and the second and fourth conveyor mesh belts are synchronously driven by the third motor 19, and the raw materials are transported downward step by step through the multi-layer conveyor mesh belts, thereby extending the moving path of the raw materials, increasing the drying time of the raw materials, and further improving the drying effect of the raw materials.

[0034] In this embodiment, a material leveling plate 111 is provided at one end of the first conveyor mesh belt 11 close to the feeding hopper 2. The material leveling plate 111 is fixedly mounted on the inner wall of the insulation box 1. The material on the first conveyor mesh belt 11 is further evenly spread through the material leveling plate 111 so that the material can be evenly dried.

[0035] In this embodiment, the heat radiation exhaust pipes 20 are respectively arranged inside the first conveyor mesh belt 11, the second conveyor mesh belt 12 and the fourth conveyor mesh belt 14, and the heat radiation exhaust pipes 20 are connected to each other. A water inlet 21 is fixedly installed on the upper end of the front side wall of the thermal insulation box body 1, and the water inlet 21 is connected to the heat radiation exhaust pipe 20 at the upper end. A water outlet 22 is fixedly installed on the lower end of the front side wall of the thermal insulation box body 1, and the water outlet 22 is connected to the heat radiation exhaust pipe 20 at the lower end. The water inlet 21 and the water outlet 22 are connected to a constant temperature hot water tank added externally, and the interior of the thermal insulation box body 1 is heated by the heat radiation exhaust pipe 20.

[0036] In this embodiment, the hot air box 23 is respectively arranged inside the third conveyor mesh belt 13 and the fifth conveyor mesh belt 15, and the hot air box 23 is externally connected to a hot air blower. A first air guide baffle 24 is provided below the third conveyor mesh belt 13, and the first air guide baffle 24 is fixedly installed on the left inner wall of the heat preservation box 1. Under the action of the hot air box 23, the hot air in the heat preservation box 1 flows from bottom to top. While the materials on the third and fifth conveyor mesh belts are dried with hot air, the air rich in water vapor will be sucked away by the negative pressure wind of the air outlet 33, thereby realizing the function of active drying. In addition, the first air guide baffle 24 divides the interior of the heat preservation box 1 into two relatively separated upper and lower areas, the upper area is a high-humidity material area, and the lower area is a low-humidity material area, thereby improving the drying efficiency.

[0037] In this embodiment, several groups of mesh belt brushes 131 are fixedly installed on the third conveyor mesh belt 13, and preferably there are two groups of mesh belt brushes 131. The mesh belt brushes 131 can promptly clean the materials that fall onto the first air guide baffle 24 and transfer them to the next layer of conveyor mesh belt.

[0038] In this embodiment, a second air guide baffle 25 is provided above the fifth conveyor mesh belt 15. The second air guide baffle 25 is fixedly installed on the right inner wall of the thermal insulation box 1. The second air guide baffle 25 reduces the negative pressure wind at the air outlet 33 to directly suck away the light and floating materials that have been dried at the end of the fifth conveyor mesh belt 15. The second air guide baffle 25 and the first air guide baffle 24 are staggered, so that the negative pressure wind at the air outlet 33 cannot directly act on the materials on the fourth and fifth layers, thereby increasing the proportion of dry materials entering the discharge port.

[0039] In this embodiment, sprockets 26 are rotatably installed at both ends of the inner walls on the front and rear sides of the insulation box body 1, and the sprockets 26 on the same side are connected to each other by chains 27. A scraper plate 28 is fixedly installed on the chain 27. A fourth motor 29 for driving the sprocket 26 is fixedly installed on the front outer wall of the insulation box body 1. The fourth motor 29 drives the chain 27 through the sprocket 26, and the scraper plate 28 is driven by the chain 27 to hang the material dropped on the bottom of the insulation box body 1 into the discharge hopper 30.

[0040] In this embodiment, the discharge hopper 30 is fixedly installed at the bottom right end of the heat preservation box body 1, and a fifth motor 32 is fixedly installed on the outer wall of the discharge hopper 30. The power output shaft of the fifth motor 32 is connected to the rotating shaft of the second blade roller 31 through a coupling. The discharge hopper 30 is connected to the interior of the heat preservation box body 1. The material after drying will fall onto the second blade roller 31, and the second blade roller 31 will be driven to rotate by the fifth motor 32, so that the material is discharged from the heat preservation box body 1.

[0041] In this embodiment, the outer wall of the heat preservation box 1 is covered with a high-density heat preservation material to keep the temperature inside the box relatively constant.

[0042] When the utility model is in use, the wet material is transported to the feeding hopper 2 by the elevator. The material distributor 6 in the feeding hopper 2 evenly transfers the material to the entire bottom of the hopper. The first blade roller 3 at the bottom of the feeding hopper 2 prevents the air in the box from overflowing from here on the one hand, and evenly spreads the material onto the first conveyor mesh belt 11 on the other hand. After the material reaches the first conveyor mesh belt 11, as the mesh belt slowly moves, the material is further evenly spread by the material distributor plate 111 above the mesh belt, so that the material can be evenly dried; in the process of the material traveling on the first, second and fourth conveyor mesh belts, it is heated by the heat radiation exhaust pipe 20 in the middle of the mesh belt, and in the process of traveling on the third and fifth conveyor mesh belts, it is heated by the hot air blown upward by the hot air blower 23 in the middle of the mesh belt. At the same time, part of the hot air is also blown to the first, second and fourth conveyor mesh belts, and these water vapor-rich air will be blown out by the air outlet 33. The negative pressure wind sucks away the material, thereby realizing the active drying function; the first air guide baffle 24 divides the insulation box 1 into two relatively separated areas, the upper area is the high-humidity material area, and the lower area is the low-humidity material area, thereby improving the drying efficiency. The main purpose of the second air guide baffle 25 is to reduce the negative pressure wind at the air outlet 33 and directly suck away the light and floating materials that have been dried at the end of the fifth conveyor mesh belt 15. The materials enter the second conveyor mesh belt 14 from the first conveyor mesh belt 13 in order of travel, and then the third, fourth and fifth conveyor mesh belts, and finally enter the discharge hopper 30, including the materials that fall into the bottom box body through the scraper plate 28 conveyor into the discharge hopper 30. The function of the second blade roller 31 is the same as that of the first blade roller 3, which prevents the wind in the insulation box 1 from overflowing from the inlet and outlet with dust, thereby turning the insulation box 1 into an independently controllable space.

[0043] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A low-temperature drying device for fungal solid-state fermentation products, comprising a heat-insulating box (1), characterized in that: A feeding mechanism is arranged at the top of the heat preservation box (1), and the feeding mechanism comprises a feeding hopper (2), and a first blade roller (3) is rotatably mounted at the bottom end of the feeding hopper (2). A step-by-step conveying mechanism is arranged inside the heat preservation box (1), and a heat radiation pipe (20) and a hot air box (23) for drying the raw materials are arranged inside the step-by-step conveying mechanism. A discharge hopper (30) is arranged at the bottom of the heat preservation box (1), and a second blade roller (31) is rotatably mounted inside the discharge hopper (30). An air outlet (33) is provided at one end of the top of the heat preservation box (1) away from the feeding mechanism.

2. The low-temperature drying device for fungal solid-state fermentation products according to claim 1, characterized in that: Support frames (4) are fixedly installed on the front and rear sides of the feeding hopper (2), and the support frame (4) is fixedly installed on the top left end of the heat preservation box (1). A feed port (5) is opened at the top center position of the feeding hopper (2), and a material leveler (6) is provided between the feed port (5) and the first blade roller (3). The material leveler (6) is rotatably installed in the feeding hopper (2). A first motor (7) is fixedly installed on the support frame (4), and the power output shaft of the first motor (7) is connected to the rotating shaft of the material leveler (6). A first pulley (8) is fixedly installed on the rotating shaft of the material leveler (6), and a second pulley (9) is fixedly installed on the rotating shaft of the first blade roller (3). The first pulley (8) and the second pulley (9) are connected by a belt (10).

3. The low-temperature drying device for fungal solid-state fermentation products according to claim 2, characterized in that: The step-by-step conveying mechanism comprises a first, a second, a third, a fourth and a fifth conveyor mesh belt which are arranged in sequence from top to bottom, and a plurality of groups of the conveyor mesh belts are arranged in an interlaced manner in a heat preservation box (1); the first conveyor mesh belt (11), the third conveyor mesh belt (13) and the fifth conveyor mesh belt (15) are connected to each other via a first transmission assembly (16); the rotating shaft of the fifth conveyor mesh belt (15) is connected to the power output shaft of a second motor (17); the second motor (17) is fixedly mounted on the outer wall of the heat preservation box (1); the second conveyor mesh belt (12) and the fourth conveyor mesh belt (14) are connected to each other via a second transmission assembly (18); the rotating shaft of the fourth conveyor mesh belt (14) is connected to the power output shaft of a third motor (19); the third motor (19) is fixedly mounted on the outer wall of the heat preservation box (1).

4. The low-temperature drying device for fungal solid-state fermentation products according to claim 3, characterized in that: A material leveling plate (111) is provided at one end of the first conveyor mesh belt (11) close to the feeding hopper (2). The material leveling plate (111) is fixedly mounted on the inner wall of the heat preservation box (1). The material on the first conveyor mesh belt (11) is further evenly spread through the material leveling plate (111), so that the material can be evenly dried.

5. The low-temperature drying device for fungal solid-state fermentation products according to claim 3, characterized in that: The heat radiation pipes (20) are respectively arranged inside the first conveyor mesh belt (11), the second conveyor mesh belt (12) and the fourth conveyor mesh belt (14), and the heat radiation pipes (20) are interconnected. A water inlet (21) is fixedly installed at the upper end of the front side wall of the thermal insulation box (1), and the water inlet (21) is connected to the heat radiation pipes (20) at the upper end. A water outlet (22) is fixedly installed at the lower end of the front side wall of the thermal insulation box (1), and the water outlet (22) is connected to the heat radiation pipes (20) at the lower end.

6. The low-temperature drying device for fungal solid-state fermentation products according to claim 3, characterized in that: The hot air box (23) is respectively arranged inside the third conveyor mesh belt (13) and the fifth conveyor mesh belt (15); a first air guide baffle (24) is arranged below the third conveyor mesh belt (13); and the first air guide baffle (24) is fixedly mounted on the left inner wall of the heat preservation box body (1).

7. The low-temperature drying device for fungal solid-state fermentation products according to claim 6, characterized in that: A plurality of groups of mesh belt brushes (131) are fixedly mounted on the third conveyor mesh belt (13).

8. The low-temperature drying device for fungal solid-state fermentation products according to claim 6, characterized in that: A second air guide baffle (25) is provided above the fifth conveyor mesh belt (15), and the second air guide baffle (25) is fixedly mounted on the right inner wall of the heat preservation box body (1).

9. The low-temperature drying device for fungal solid-state fermentation products according to claim 1, characterized in that: Sprocket wheels (26) are rotatably mounted on both ends of the inner walls on the front and rear sides of the heat preservation box (1); the sprocket wheels (26) on the same side are connected to each other via a chain (27); a scraper plate (28) is fixedly mounted on the chain (27); and a fourth motor (29) for driving the sprocket wheels (26) is fixedly mounted on the front outer wall of the heat preservation box (1).

10. The low-temperature drying device for fungal solid-state fermentation products according to claim 1, characterized in that: The discharge hopper (30) is fixedly mounted at the right end of the bottom of the heat preservation box (1), and a fifth motor (32) is fixedly mounted on the outer wall of the discharge hopper (30), wherein the power output shaft of the fifth motor (32) is connected to the rotating shaft of the second blade roller (31).