A device for uniform drying of mycelium

Abstract

The utility model discloses a kind of mycelium uniform drying device, it is related to mycelium processing technical field, including net type electric conveying belt, steam heating element is arranged in the net type electric conveying belt, the one end of the net type electric conveying belt is fixed with spiral extrusion dehydrator, the upper end of the net type electric conveying belt is provided with controller, laser thickness sensor and at least two groups of air heating element;The air heating element includes hot air blower, bellows and electric telescopic rod for controlling bellows telescopic.The utility model detects mycelium thickness in real time by laser thickness sensor, controller controls electric telescopic rod to adjust the height of bellows in different positions accordingly, so that the hot air of hot air blower can be accurately applied to mycelium of different thicknesses, while cooperating with steam coil to heat the bottom of mycelium, realize the combination of direct hot air heating and steam coil indirect heating, avoid the problem that single heating is affected by material thickness and leads to uneven drying.

Description

Technical Field

[0001] This utility model relates to the field of mycelium processing technology, specifically to a device for uniformly drying mycelium. Background Technology

[0002] Drying mycelia removes moisture, facilitating long-term storage and preventing mold, rot, or microbial contamination that could lead to loss of activity in humid environments. The reduced volume of dried mycelia also makes them easier to transport and store, and provides a stable raw material for subsequent processing (such as spawn production and extraction of active ingredients), ensuring that the biological activity and usability of the mycelia remain unaffected. This process is primarily accomplished using drying equipment.

[0003] Existing mycelium drying devices, through practical use, have two main drawbacks: First, they suffer from uneven drying. Relying on steam coils inside the conveyor belt for heating, these are indirect heating methods, and heat transfer efficiency is affected by the thickness of the material accumulation. For example, if the Cordyceps sinensis mycelium is pressed into tablets or the material thickness is uneven, it can easily lead to localized over- or under-drying, resulting in uneven drying. Second, they lack a material pretreatment mechanism. Directly introducing the mycelium into the drying chamber results in excessively high moisture content, leading to slow and incomplete drying. Therefore, we propose a mycelium uniform drying device to address the problems encountered in existing technologies. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A mycelium uniform drying device includes a mesh electric conveyor belt, a steam heating element installed inside the mesh electric conveyor belt, a screw extrusion dewatering machine fixed at one end of the mesh electric conveyor belt, and a controller, a laser thickness sensor, and at least two sets of air heating elements installed at the upper end of the mesh electric conveyor belt; the air heating elements include a hot air blower, a corrugated pipe, and an electric telescopic rod for controlling the extension and retraction of the corrugated pipe.

[0008] Furthermore, a drying box is welded to the upper end of the base of the mesh electric conveyor belt, and a screw extrusion dewatering machine is fixed to the left end of the mesh electric conveyor belt by a fixing frame, with the discharge end of the screw extrusion dewatering machine located at the upper end of the mesh electric conveyor belt.

[0009] Furthermore, the steam heating element includes a steam generator and a steam coil. The steam generator is fixed to the upper end of the drying box by bolts. The output end of the steam generator is fixed by a copper pipe and connected to the steam coil. The steam coil is located at the lower end of the mesh electric conveyor belt.

[0010] Furthermore, both sets of hot air blowers are fixed to the top wall of the drying oven by brackets, and a corrugated pipe is fixedly connected to the output end of each hot air blower; an electric telescopic rod is fixed to the right side of the hot air blower by brackets, and the output end of the hot air blower is fixed to the outlet end of the corrugated pipe by clamps to drive the extension and retraction of the corrugated pipe.

[0011] Furthermore, a laser thickness sensor is provided on the left side of each of the hot air blowers, and the front and rear ends of the laser thickness sensor are fixed to the front and rear inner walls of the drying chamber by bolts.

[0012] Furthermore, a dehumidifier is fixed to the upper end of the drying box, and the output end of the dehumidifier extends into the drying box.

[0013] Furthermore, a preheating scraper is provided between the screw extrusion dewatering machine and the drying box. The preheating scraper includes a scraper, a nozzle, and a guide tube. The scraper is fixed to the left end of the drying box by a bracket and is located at the upper end of the mesh electric conveyor belt. The upper end of the scraper is integrally provided with a nozzle, and one side of the nozzle is fixedly connected to one end of the guide tube. The other end of the guide tube is fixedly connected to the output end of the hot air blower.

[0014] Furthermore, the nozzle is L-shaped and the outlet end is inclined downwards.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Improved drying uniformity: This technology uses a laser thickness sensor to detect the mycelium thickness in real time. The controller then controls the electric telescopic rod to adjust the height of the corrugated pipe at different positions, so that the hot air from the hot air blower can be precisely applied to mycelium of different thicknesses. At the same time, it works in conjunction with the steam coil to heat the bottom of the mycelium, achieving a combination of direct hot air heating and indirect steam coil heating, avoiding the problem of uneven drying caused by the thickness of the material due to single heating.

[0017] Meanwhile, the scraper of the preheating scraper ensures that the mycelium thickness is uniform, reducing the drying difference caused by uneven thickness and further improving the drying effect;

[0018] The spiral extrusion dehydrator first extrudes and dehydrates the mycelium to reduce its initial moisture content. The nozzle of the preheating scraper works in conjunction with the hot air blower in the air-heating unit to spray hot air for preheating. The combination of the two reduces the moisture content of the mycelium entering the drying chamber, improving drying efficiency and thoroughness.

[0019] Two hot air blowers at different locations dry the mycelium, achieving staged dehydration by the two hot air blowers. The first blower treats the surface moisture, and the second blower dries the mycelium further, avoiding rapid moisture loss that could damage the mycelial structure.

[0020] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0021] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a front view schematic diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the air-heating component of this utility model;

[0026] Figure 4 This is a schematic diagram of the preheating scraper of this utility model;

[0027] In the diagram: 1. Mesh electric conveyor belt; 2. Screw extrusion dewatering machine; 3. Steam heating element; 31. Steam generator; 32. Steam coil; 4. Laser thickness sensor; 5. Air heating element; 51. Hot air blower; 52. Corrugated pipe; 53. Electric telescopic rod; 6. Preheating scraper element; 61. Scraper; 62. Nozzle; 63. Conduit; 7. Controller; 8. Dehumidifier; 9. Drying oven; Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0031] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0032] Please see Figures 1 to 4 This utility model provides a technical solution: a mycelium uniform drying device, including a mesh electric conveyor belt 1, a steam heating element 3 installed inside the mesh electric conveyor belt 1, a screw extrusion dewatering machine 2 fixed at one end of the mesh electric conveyor belt 1, and a controller 7, a laser thickness sensor 4 and at least two sets of air heating elements 5 installed at the upper end of the mesh electric conveyor belt 1; the air heating elements 5 include a hot air blower 51, a corrugated pipe 52 and an electric telescopic rod 53 for controlling the extension and retraction of the corrugated pipe 52.

[0033] It should be noted that the screw extruder 2, model NSP20, TSJ-120LJ, etc., operates by first feeding the mycelium into the screw extruder 2. The rotating screw shaft then squeezes out a large amount of free water from the mycelium through a screen, reducing the initial moisture content. Typically, the moisture content can be reduced from over 80% to 50%-60%, completing the pretreatment.

[0034] The ZLDS11X series laser thickness sensor 4 has non-contact high-precision detection capability. It can scan the mycelium on the mesh electric conveyor belt 1 in real time and directly output thickness data with an accuracy of 0.01mm. It can also be connected to the controller 7, such as a PLC controller, via a data cable to convert the thickness signal into an electrical signal for transmission.

[0035] Secondly, after receiving the thickness data, the controller 7 will calculate the height that each corrugated pipe 52 needs to be adjusted according to the preset program, such as the electric telescopic rod extending by 0.5mm for every 1mm increase in mycelial thickness, and then send an action command to the electric telescopic rod 53: the telescopic amount can be precisely controlled by pulse signals, with a minimum adjustment of 0.1mm, and it can be linked with the controller 7 in real time through a relay or communication module.

[0036] Finally, the corrugated pipe 52 itself has good extensibility. When the electric telescopic rod 53 receives the instruction to extend or retract, it can directly drive the corrugated pipe 52 at the corresponding position to move up and down, and precisely adjust the distance between the hot air outlet and the mycelium surface. For example, the hot air distance is adjusted closer where the mycelium is thick to enhance the drying intensity, and further away where it is thin to avoid local over-drying.

[0037] Meanwhile, the action response speed of the electric telescopic rod 53 is ≤0.5 seconds and the running speed of the mesh electric conveyor belt 1 can be synchronously adjusted by the controller 7. If it is set to 0.5m / s, it can perfectly match the rhythm of mycelial conveying in real time and there will be no adjustment lag.

[0038] refer to Figure 1 and Figure 2 A drying chamber 9 is welded to the upper end of the base of the mesh electric conveyor belt 1. The left end of the mesh electric conveyor belt 1 is fixed to the screw extrusion dewatering machine 2 by a fixing frame, and the discharge end of the screw extrusion dewatering machine 2 is located at the upper end of the mesh electric conveyor belt 1. The steam heating element 3 includes a steam generator 31 and a steam coil 32. The steam generator 31 is fixed to the upper end of the drying chamber 9 by bolts. The output end of the steam generator 31 is fixed by a copper pipe and connected to the steam coil 32. The steam coil 32 is located at the lower end of the mesh electric conveyor belt 1.

[0039] refer to Figure 1 and Figure 3 Both sets of hot air blowers 51 are fixed to the top wall of the drying chamber 9 by brackets. The output end of each hot air blower 51 is longitudinally connected to 4-6 corrugated pipes 52 to deal with mycelia at different positions. The right side of the hot air blower 51 is fixed to an electric telescopic rod 53 by a bracket. The output end of the hot air blower 51 is fixed to the outlet end of the corrugated pipe 52 by clamps to drive the extension and retraction of the corrugated pipe 52. A laser thickness sensor 4 is installed on the left side of each hot air blower 51. The front and rear ends of the laser thickness sensor 4 are fixed to the front and rear inner walls of the drying chamber 9 by bolts, and are used to detect the mycelial thickness on the mesh electric conveyor belt 1 in multiple sections.

[0040] It should be noted that one of the two hot air blowers 51 is fixed near the left end of the drying chamber 9, and the other is fixed near the right end of the drying chamber 9. In this way, the two hot air blowers 51 at different positions dry the mycelium, so that the two hot air blowers 51 dehydrate in stages. The first blower treats the surface moisture first, and the second blower dries it deeper, so as to avoid the rapid loss of moisture and damage to the mycelium structure.

[0041] Increasing the contact area between mycelium and hot air reduces local differences in dryness and wetness; in terms of efficiency, the two hot air blowers 51 work in turn to extend the effective drying time, and can increase the dehydration speed while the mesh electric conveyor belt 1 is running continuously, better adapting to the rhythm of continuous production, thereby protecting the mycelium structure and improving production efficiency.

[0042] Temperature settings for the two hot air blowers 51: The first hot air blower 51 is used for initial surface moisture removal, with a temperature set at 40-50℃. This temperature allows for rapid evaporation of surface free water while preventing premature drying of the mycelial surface due to excessive heat, which would hinder internal moisture evaporation. The second hot air blower 51 is used for deep drying to the target humidity level, with a slightly higher temperature set at 50-60℃. This accelerates internal moisture migration and evaporation based on the initial dehydration, while remaining within the tolerance range of most mycelia, such as Cordyceps sinensis and edible fungi mycelia, minimizing damage to active ingredients. The specific temperature needs to be fine-tuned based on the actual mycelial species, initial moisture content, and target dryness.

[0043] refer to Figure 1 A dehumidifier 8 is fixed at the top of the drying box 9, and the output end of the dehumidifier 8 extends into the drying box 9 for dehumidification.

[0044] refer to Figure 2 and Figure 4 A preheating scraper 6 is provided between the screw extrusion dewatering machine 2 and the drying box 9. The preheating scraper 6 includes a scraper 61, a nozzle 62 and a guide tube 63. The scraper 61 is fixed to the left end of the drying box 9 by a bracket and is located at the upper end of the mesh electric conveyor belt 1. The upper end of the scraper 61 is integrally provided with a nozzle 62, and one side of the nozzle 62 is fixedly connected to one end of the guide tube 63. The other end of the guide tube 63 is fixedly connected to the output end of the hot air blower 51 near the left end of the drying box 9 to provide hot air preheating.

[0045] refer to Figure 4 Nozzle 62 is L-shaped and the outlet end is tilted downwards to facilitate the precise blowing of hot air onto the mycelium.

[0046] Working principle: The mycelium first enters the screw extruder 2 for extrusion and dehydration to reduce the initial moisture content. The dehydrated mycelium is then conveyed from the discharge end of the screw extruder 2 to the mesh electric conveyor belt 1.

[0047] Before entering the drying oven 9, the mycelium passes through the preheating scraper 6, where the scraper 61 scrapes the mycelium to make the mycelium thickness uniform, and at the same time the guide tube 63 guides the hot air output from the hot air blower 51 into the nozzle 62. The L-shaped nozzle 62 with the outlet end tilted downward sprays out hot air to preheat the mycelium.

[0048] Subsequently, the mesh electric conveyor belt 1 transports the mycelium into the drying chamber 9. The laser thickness sensor 4 detects the thickness of the mycelium and transmits the signal to the controller 7. The controller 7 controls the extension and retraction of the electric telescopic rod 53 according to the detected thickness, thereby driving the corrugated pipe 52 at different positions to extend and retract to different heights to adjust the height of the hot air output by the hot air blower 51, so that the hot air component 5 can dry mycelium of different thicknesses, making the drying more uniform.

[0049] At the same time, the steam generator 31 in the steam heating element 3 generates steam and heats the mycelium on the mesh electric conveyor belt 1 through the steam coil 32. The hot air blown out by the hot air blower 51 and the heating of the steam coil 32 work together to dry the mycelium. During the drying process, the dehumidifier 8 discharges the moisture in the drying box 9.

[0050] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A mycelium uniform drying device, comprising a mesh electric conveyor belt (1), wherein a steam heating element (3) is provided inside the mesh electric conveyor belt (1), characterized in that: One end of the mesh electric conveyor belt (1) is fixed with a screw extrusion dewatering machine (2), and the upper end of the mesh electric conveyor belt (1) is equipped with a controller (7), a laser thickness sensor (4) and at least two sets of air-heating components (5). The heating element (5) includes a hot air blower (51), a corrugated pipe (52) and an electric telescopic rod (53) for controlling the extension and retraction of the corrugated pipe (52).

2. The mycelium uniform drying device according to claim 1, characterized in that: A drying box (9) is welded to the upper end of the base of the mesh electric conveyor belt (1). The left end of the mesh electric conveyor belt (1) is fixed with a screw extrusion dewatering machine (2) by a fixing frame, and the discharge end of the screw extrusion dewatering machine (2) is located at the upper end of the mesh electric conveyor belt (1).

3. The mycelium uniform drying device according to claim 2, characterized in that: The steam heating element (3) includes a steam generator (31) and a steam coil (32). The steam generator (31) is fixed to the upper end of the drying box (9) by bolts. The output end of the steam generator (31) is fixed by a copper pipe and connected to the steam coil (32). The steam coil (32) is located at the lower end of the mesh electric conveyor belt (1).

4. The mycelium uniform drying device according to claim 1, characterized in that: Both sets of hot air blowers (51) are fixed to the top wall of the drying box (9) by brackets, and the output end of each hot air blower (51) is fixedly connected to a corrugated pipe (52). The electric telescopic rod (53) is fixed to the right side of the hot air blower (51) by a bracket. The output end of the hot air blower (51) is fixed to the outlet end of the corrugated pipe (52) by a clamp to drive the corrugated pipe (52) to extend and retract.

5. The mycelium uniform drying device according to claim 4, characterized in that: A laser thickness sensor (4) is provided on the left side of each of the hot air blowers (51), and the front and rear ends of the laser thickness sensor (4) are fixed to the front and rear inner walls of the drying box (9) by bolts.

6. The mycelium uniform drying device according to claim 5, characterized in that: A dehumidifier (8) is fixed at the upper end of the drying box (9), and the output end of the dehumidifier (8) extends into the drying box (9).

7. The mycelium uniform drying device according to claim 2, characterized in that: A preheating scraper (6) is provided between the screw extrusion dewatering machine (2) and the drying box (9). The preheating scraper (6) includes a scraper (61), a nozzle (62) and a guide tube (63). The scraper (61) is fixed to the left end of the drying box (9) by a bracket and located at the upper end of the mesh electric conveyor belt (1). The upper end of the scraper (61) is integrally provided with a nozzle (62), and one side of the nozzle (62) is fixedly connected to one end of the guide tube (63). The other end of the guide tube (63) is fixedly connected to the output end of the hot air blower (51).

8. The mycelium uniform drying device according to claim 7, characterized in that: The nozzle (62) is L-shaped and the outlet end is inclined downward.

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