Processing technology and processing equipment of edible mushrooms

Abstract

The invention discloses a processing technology and processing equipment of edible mushrooms. The equipment comprises a vacuum tank, a condenser, an oil storage tank, a steam recovery device and a gravity sensing executing mechanism. Through the unique mechanical gravity sensing executing mechanism, the locking rod is driven to be mechanically locked by utilizing the springback of the first spring when the material is dehydrated and the weight is reduced, so that the automatic judgment of a frying end point based on the real state of the material and the automatic triggering of centrifugal deoiling are realized; the problems of uneven quality and poor reliability caused by traditional timing or electronic sensing control are solved. Meanwhile, waste steam kinetic energy generated by frying is innovatively utilized, a turbine impeller is used for driving a condenser self-cleaning scraper blade, energy-saving linkage of steam generation and cleaning is formed, and the high vacuum degree of the system is effectively maintained. The process integrates ultrasonic color protection, quick-freezing fresh locking, vacuum low-temperature frying, physical sensing dehydration and vacuum centrifugal deoiling, realizes accurate, automatic, efficient and energy-saving operation of the whole process from frying to deoiling, and remarkably improves the product quality and production efficiency of the edible mushroom crisp chips.

Description

Technical Field

[0001] This invention relates to the field of edible fungi processing, and in particular to a processing technology and equipment for edible fungi. Background Technology

[0002] Processing edible fungi is an important means of increasing the added value of agricultural products. Among these processes, vacuum low-temperature frying technology has become the mainstream method for producing mushroom chips because it can dehydrate the material at lower temperatures, thus preserving the nutritional components, natural color, and unique aroma of edible fungi to the maximum extent. However, existing vacuum frying equipment still has the following significant problems in actual production: Firstly, most current equipment uses timers to control processing time. Because different batches of edible fungi vary in initial moisture content, tissue density, and loading, a fixed frying time often results in products that are either "burnt on the outside and wet on the inside" or "over-charred." Although some high-end equipment attempts to introduce electronic weighing sensors, in the harsh environment of high-temperature oil, high vacuum, and frequent centrifugal rotation, electronic components are prone to signal drift, seal failure, and shortened lifespan, leading to control malfunctions. Secondly, when the large amount of steam generated during material dehydration liquefies on the condenser surface, it is often accompanied by the adhesion of grease droplets, and even frost formation on the surface of the low-temperature tube bundle. Existing cleaning methods mostly involve shutting down the machine for maintenance or adding an extra drive motor to drive the scraper. This not only increases the energy consumption and structural complexity of the equipment, but also makes it impossible to adjust the cleaning frequency in real time according to the intensity of steam generation. Summary of the Invention

[0003] One object of the present invention is to provide a processing technology and processing equipment for edible fungi that at least solves any of the above-mentioned technical problems.

[0004] In particular, the present invention provides a processing technology and processing equipment for edible fungi, including a vacuum tank, wherein a centrifuge chamber is provided at the lower part of the vacuum tank; A condenser is disposed diagonally above the vacuum tank and is connected to the vacuum tank; An oil storage tank is provided on one side of the vacuum tank, and the vacuum tank is connected to the oil storage tank. A steam recovery device, wherein the steam recovery device is connected to the vacuum tank; A gravity-sensing actuator is installed inside the centrifuge.

[0005] Furthermore, the steam recovery device is connected to the vacuum tank via a vacuum tube, and a turbine impeller and a coaxially arranged cleaning scraper are installed inside the vacuum tube. The cleaning scraper is driven by the steam kinetic energy generated by the vaporization of the material to clean the inner wall of the condenser in real time.

[0006] Furthermore, the steam kinetic energy recovery device is connected to a vacuum pipe via a venturi constriction nozzle, which is used to convert the diffused steam flow into a high-speed directional jet to enhance the impact energy on the turbine impeller.

[0007] Furthermore, the gravity-sensing actuator includes: The outer cylinder has an upward-facing cavity, and a fixed seat is provided on the outside of the outer cylinder, which is fixedly connected to the outer cylinder. A rotating basket is disposed inside the cavity of the outer cylinder, and a bottom plate is provided at the bottom of the rotating basket, with a plurality of first springs provided at the lower part of the bottom plate; A rotating shaft is provided with an integrally connected stirring rod on its outer periphery. The stirring rod and the rotating shaft are hollow structures. A locking rod is provided inside the stirring rod and a second spring is provided between the locking rods. A symmetrical first roller is provided at one end of the rotating shaft near the locking rod, and two sets of gears with spools are provided at one end of the rotating shaft away from the first roller. A wire rope, one end of which is connected to one end of a locking rod, and the other end of which passes through the opposite side of the first roller and is wound around the gear with a spool; A drive motor, wherein the drive end of the drive motor is provided with a connecting cavity, and the connecting cavity is provided with a rack.

[0008] Furthermore, a sealed bearing is provided between the rotating basket and the rotating shaft.

[0009] Furthermore, slots are provided on both sides of the connecting cavity, and a plug corresponding to the slot is provided at the bottom of the rotating shaft.

[0010] Furthermore, the outer periphery of the rotating basket is provided with a drain hole, and the diameter of the locking rod is less than or equal to the diameter of the drain hole.

[0011] Furthermore, the bottom of the vacuum tank is equipped with a passive gravity drain valve, including a counterweight sealing cover, which uses the static pressure of the accumulated condensate to overcome the closing force of the preset counterweight block, thereby realizing automatic intermittent draining under vacuum conditions.

[0012] A processing method for edible fungi includes the following steps: S1. Pretreatment and ultrasonic color protection: The trimmed edible fungi material is immersed in an ultrasonic tank, and the color protection agent is penetrated and impurities are removed by utilizing the ultrasonic cavitation effect. S2. Flash Freezing and Freshness Locking: The material is flash-frozen at -18°C to -30°C, causing the internal moisture to form ice crystal microstructures; S3. Vacuum low-temperature frying and two-way linkage: Hot oil is injected into a vacuum environment of -0.095 MPa, and the steam kinetic energy generated by the vaporization of the material drives the rotation of the built-in turbine to achieve the self-cleaning linkage of the condenser wall; S4. Physical Sensing Dehydration: Real-time monitoring of material weight changes; the first spring rebounds as the weight is reduced, driving the spiral cam mechanism to rotate to a preset critical point; a physical trigger switch then causes the material basket to detach from the oil surface. S5. Vacuum Adaptive Oil Removal: Upon receiving a trigger signal, the centrifuge jumps to high-frequency oil removal mode in a vacuum environment, using centrifugal force to remove oil; S6. Vacuum breaking and packaging: Introduce dry, cold air or nitrogen, collect the finished product, and seal it with nitrogen.

[0013] Furthermore, in step S3, the steam-driven self-cleaning linkage refers to: using the exhaust pressure energy generated by the rapid vaporization of moisture in the material to drive the axial turbine impeller located in the vacuum pipeline, thereby driving the coaxial scraper to clean the inner wall of the condenser, so as to maintain the high vacuum of the system.

[0014] The technical effects and advantages of this invention are as follows: This invention mechanically drives the locking rod to unlock by utilizing the rebound displacement of the first spring during material dehydration and weight reduction, ultimately triggering the lifting of the material basket and centrifugal degreasing. This process is entirely physically triggered by the material's own degree of dehydration (weight change), achieving true "timed operation based on material," fundamentally solving the problems of "external charring and internal moisture" or "over-charring" caused by differences in the initial state of the material, and ensuring uniform and stable product quality.

[0015] This invention utilizes the kinetic energy of steam generated by the rapid vaporization of moisture in materials under vacuum and low temperature conditions. This steam is accelerated through a Venturi nozzle and drives a turbine impeller, which in turn drives a coaxial cleaning scraper to clean the inner wall of the condenser in real time. This design converts previously wasted steam pressure energy into cleaning power, eliminating the need for an additional drive motor and thus saving energy. More importantly, it achieves real-time linkage between steam generation and cleaning: the more intense the steam generation (peak dehydration period), the stronger the cleaning power and the higher the cleaning frequency. This effectively prevents the decline in condensation efficiency caused by grease droplet adhesion and frost formation, thereby maintaining a high vacuum level in the system over a long period, ensuring frying and dehydration efficiency, and reducing the frequency of downtime maintenance. This invention involves placing edible fungi into a vacuum tank, which is then placed into a rotating basket. Under the influence of gravity, the rotating basket moves downwards, causing the entire shaft to move downwards. This engages a gear at the bottom with a rack in a slot, causing the gear to rotate and tighten a silk rope. The silk rope then pulls a locking rod to retract. While the fungi in the rotating basket are being fried and dehydrated, a drive motor rotates to stir the fungi, ensuring thorough dehydration. When the fungi become lighter due to dehydration, the first spring resets, the rotating basket moves upwards, the silk rope loosens, and the locking rod extends from the stirring rod and inserts into the drain hole of the rotating basket. Simultaneously, the drive motor causes the rotating basket to undergo centrifugal motion, expelling excess oil and water. Attached Figure Description

[0016] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the gravity sensing actuator of the present invention.

[0018] Figure 3 For the present invention Figure 2 A top-view structural diagram.

[0019] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure in the middle BB direction.

[0020] Figure 5 For the present invention Figure 2 A schematic diagram of the internal structure.

[0021] Figure 6 For the present invention Figure 5 A frontal view of the structure.

[0022] Figure 7 For the present invention Figure 6 Schematic diagram of the cross-sectional structure along the AA direction.

[0023] Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure of C.

[0024] Figure 9 This is a top view of the structure of the present invention.

[0025] Figure 10 For the present invention Figure 9 Schematic diagram of the cross-sectional structure in the DD direction.

[0026] In the diagram: 1. Oil storage tank; 2. Steam recovery device; 3. Condenser; 4. Condenser; 5. Vacuum tank; 6. Centrifuge; 7. Vacuum tube; 8. Rotating shaft wheel; 9. Synchronous belt; 10. Cleaning scraper; 11. Fixed seat; 12. Outer cylinder; 13. Drive motor; 14. Connecting cavity; 141. Slot; 15. Connector; 16. Rotating basket; 161. Leakage hole; 17. First spring; 18. Rotating shaft; 19. Stirring rod; 20. Base plate; 21. Locking rod; 22. Second spring; 23. First roller; 24. Wire rope; 25. Gear; 26. Rack; 27. Sealed bearing; 28. Insert rod. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 2 This is a schematic diagram of the gravity sensing actuator of the present invention. Figure 3 For the present invention Figure 2 A top-view structural diagram. Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure in the middle BB direction. Figure 5 For the present invention Figure 2 A schematic diagram of the internal structure. Figure 6 For the present invention Figure 5 A frontal view of the structure. Figure 7 For the present invention Figure 6 Schematic diagram of the cross-sectional structure along the AA direction. Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure of C. Figure 9 This is a top view of the structure of the present invention. Figure 10 For the present invention Figure 9 Schematic diagram of the cross-sectional structure in the DD direction.

[0029] The solution of this embodiment provides a processing technology and equipment for edible fungi, including a vacuum tank 5, a condenser 4, an oil storage tank 1, a steam recovery device 2, and a gravity sensing actuator.

[0030] The vacuum tank 5 is the core cavity of the entire frying and dehydration process, and a centrifuge chamber 6 is integrated at its lower part. The condenser 4 is mounted diagonally above the vacuum tank 5 via a bracket and is connected to the vacuum tank 5, used to condense and recover water vapor generated during the frying process. The oil storage tank 1 is located on one side of the vacuum tank 5 and is connected to the interior of the vacuum tank 5 via a pipe with a valve, used to supply and recover hot oil. The steam recovery device 2 is connected to the vacuum tank 5 via a vacuum pipe 7, used to establish and maintain a negative pressure environment inside the vacuum tank 5. The lower part of the vacuum tank 5 is fixedly connected to the centrifuge chamber 6.

[0031] The steam recovery device 2 is connected to the vacuum tank 5 via a vacuum pipe 7. A turbine impeller 8 and a coaxially arranged cleaning scraper 10 are installed inside the vacuum pipe 7. The cleaning scraper 10 is driven by the kinetic energy of the steam generated by the vaporization of the material to clean the inner wall of the condenser 4 in real time. The steam recovery device 2 is connected to the vacuum pipe 7 via a Venturi nozzle. The nozzle is used to convert the diffused steam flow into a high-speed directional jet to increase the impact energy on the turbine impeller 8.

[0032] The gravity sensing actuator is installed inside the centrifuge 6 and specifically includes: an outer cylinder 12, a rotating basket 16, a rotating shaft 18, a locking and triggering mechanism, a transmission component, and a drive motor 13.

[0033] The outer cylinder 12 has an upward-facing cavity, and a fixing seat 11 is fixed to its exterior for positioning and installing the entire mechanism in the centrifuge 6.

[0034] The rotating basket 16 is placed inside the cavity of the outer cylinder 12 and is used to hold the edible fungi material to be processed. The bottom of the rotating basket 16 is provided with a bottom plate 20, and a number of first springs 17 distributed in a circle are provided between the lower part of the bottom plate 20 and the fixed seat 11 or the bottom of the outer cylinder 12. The side wall of the rotating basket 16 has dense perforations 161 to facilitate the flow of oil and centrifugal degreasing.

[0035] The rotating shaft 18 is vertically inserted through the center of the rotating basket 16, and the two are sealed to achieve relative rotation through a sealing bearing 27. The interior of the rotating shaft 18 is hollow. Several stirring rods 19 are integrally connected to the outer circumference of the rotating shaft 18. The stirring rods 19 are also hollow and communicate with the inner cavity of the rotating shaft 18.

[0036] The locking and triggering mechanism includes: a pair of relatively sliding locking rods 21 inside the stirring rod 19, with a second spring 22 between the two locking rods 21. In its natural state, the second spring 22 pushes the ends of the two locking rods 21 against the tube wall of the stirring rod 19, causing the locking rods 21 to extend partially; when the ends of the locking rods 21 are aligned with the drain hole 161 of the rotating basket 16, they can be inserted into it to lock. Inside the rotating shaft 18, near one end of the locking rods 21, a pair of symmetrical first rollers 23 are provided. Inside the rotating shaft 18, away from the lower end of the first rollers 23, two sets of gears 25 with spools are provided.

[0037] The transmission component includes two wire ropes 24. One end of each wire rope 24 is connected to the inner end of the two locking rods 21, and the other end passes around the first roller 23 on the corresponding side and is wound downwards onto the corresponding gear 25 with a spool.

[0038] The drive motor 13 is fixed to the bottom of the centrifuge 6, with its drive end facing upward and having a connecting cavity 14. A rack 26 that can move up and down is provided inside the connecting cavity 14. A downwardly extending insert 28 is provided at the bottom of the rotating shaft 18, and slots 141 corresponding to the insert 28 are opened on both sides of the top of the connecting cavity 14 of the drive motor 13.

[0039] The working process of the equipment in this embodiment, combined with the processing steps, is as follows: S1. Pretreatment and ultrasonic color protection: The trimmed edible fungi material is placed in an ultrasonic bath to impregnate it with a color-protecting agent, and the ultrasonic cavitation effect is used to promote penetration and cleaning.

[0040] S2. Flash Freezing to Preserve Freshness: The color-protected material is flash-frozen at -18°C to -30°C, causing the internal moisture to form tiny ice crystals.

[0041] S3. Vacuum cryogenic frying and two-way linkage: The quick-frozen material is loaded into the rotating basket 16, and then the entire gravity-sensing actuator is placed and fixed inside the centrifuge chamber 6 at the bottom of the vacuum tank 5. The vacuum tank 5 is closed, and the steam recovery device 2 is activated to evacuate the vacuum level to approximately -0.095 MPa. Heated oil is injected into the vacuum tank 5 from the oil storage tank 1, ensuring the oil level completely submerges the material in the rotating basket 16. The material rapidly dehydrates under vacuum and low temperature, and the moisture vaporizes to generate a large amount of steam. The steam is drawn to the condenser 4 through the vacuum tube 7. Inside the vacuum tube 7, a turbine impeller 8 is installed, such as... Figure 10 As shown, the steam is accelerated as it passes through the Venturi nozzle in front of it, forming a high-speed jet that impacts the turbine impeller 8, causing it to rotate. The shaft of the turbine impeller 8 drives the cleaning scraper 10 located inside the condenser 4 to rotate via the synchronous belt 9, thereby scraping away the condensate on the inner wall of the condenser 4 in real time, achieving self-cleaning linkage.

[0042] The specific equipment linkage process is as follows: The pre-treated and flash-frozen edible fungus material is loaded into the rotating basket 16, and then the entire gravity-sensing actuator is placed and fixed inside the centrifuge chamber 6 at the bottom of the vacuum tank 5. After loading, the total weight of the material, rotating basket 16, and bottom plate 20 is at its maximum, the first spring 17 is strongly compressed, and the rotating basket 16 is at its lowest point of stroke. At this time, the drain hole 161 on the side wall of the rotating basket 16 is misaligned with the end of the locking rod 21 inside the stirring rod 19. Under the push of the second spring 22, the end of the locking rod 21 presses against the solid inner wall of the rotating basket 16, and the mechanism is in a "prepared locking" state. The insertion rod 28 at the bottom of the rotating shaft 18 is separated from the slot 141 of the drive motor 13.

[0043] The vacuum tank 5 is closed, the system is started to evacuate to approximately -0.095 MPa, and hot oil is injected. The drive motor 13 starts first, its top connecting cavity 14 lifting the rack 26, allowing the insert rod 28 to insert into the slot 141, achieving power connection. Simultaneously, the rack 26 meshes with the gear 25 at the bottom of the rotating shaft 18. The power from the drive motor 13 then drives the rotating shaft 18 and the stirring rod 19 to rotate at a uniform speed via the gear-rack pair, continuously and gently agitating the material to ensure uniform heating and dehydration. During this stage, the rotating basket 16 remains stationary due to being held in place by the locking rod 21.

[0044] S4. Physically-sensory dehydration: During vacuum low-temperature frying, the internal moisture of the material rapidly vaporizes, resulting in a continuous decrease in weight. The compressive force of the first spring 17 then weakens, causing the base plate 20 to slowly and steadily lift the rotating basket 16 and its contents upwards along the shaft 18. This upward stroke is a direct physical measure of the degree of dehydration of the material.

[0045] When the material is dehydrated to the preset endpoint (corresponding to the target moisture content), the rotating basket 16 moves upward to the preset "trigger position". At this time, the drain hole 161 on its side wall is precisely aligned with the end of the locking rod 21 inside the stirring rod 19. The elastic force of the second spring 22 instantly loses its resistance, pushing the two locking rods 21 outward, so that their ends are firmly inserted into the drain hole 161 of the rotating basket 16. This mechanical locking action produces two direct results: The first result is the switching of the power transmission path: the rotating basket 16, the rotating shaft 18, and the stirring rod 19 are rigidly connected as one unit.

[0046] The second result is the generation of physical signals: the pop-out movement of the locking lever 21 can directly activate a preset mechanical lever switch or cause a sudden increase in the load on the drive motor 13, which can be detected.

[0047] S5. Vacuum adaptive oil removal: The aforementioned physical trigger signal was immediately responded to by the system: Lifting from the oil surface: The control lifting mechanism lifts the entire gravity sensing actuator, along with the material in the rotating basket 16, from the oil to the suspended position.

[0048] High-speed centrifugation: Upon receiving a signal, drive motor 13 switches to high-speed mode. Since rotating basket 16 is locked to shaft 18, power is directly transmitted to rotating basket 16, causing it to rotate at high speed in a vacuum environment, entering a powerful centrifugal degreasing mode. Residual grease and moisture are completely separated from the material fibers under the action of strong centrifugal force and discharged through the drain hole 161.

[0049] S6. Vacuum breaking and packaging: After the centrifugal degreasing process is completed, drive motor 13 stops. Dry nitrogen is introduced into vacuum tank 5 to break the vacuum, and the tank door is opened to take out the finished edible mushroom crisps with a golden color, uniform dehydration, and low oil content, which are then subjected to subsequent nitrogen filling and packaging.

[0050] In summary, this embodiment provides an intelligent edible fungus processing system based on mechanical weight sensing and energy recovery linkage, which realizes accurate automatic judgment of the processing endpoint and efficient and energy-saving operation throughout the entire process.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A processing device for edible fungi, characterized in that, Comprising, a vacuum tank, a lower part of which is provided with a centrifugal box; a condenser, which is arranged obliquely above the vacuum tank and is connected with the vacuum tank; an oil storage tank, which is arranged on one side of the vacuum tank and is communicated with the vacuum tank; a steam recovery device, which is communicated with the vacuum tank; a gravity sensing actuating mechanism, which is arranged in the centrifugal box.

2. The processing apparatus for edible mushrooms according to claim 1, wherein The steam recovery device is connected with the vacuum tank through a vacuum pipe, and a turbine impeller and a cleaning scraper coaxially arranged are arranged in the vacuum pipe, and the cleaning scraper is driven by the steam kinetic energy generated by the material vaporization to realize real-time cleaning of the inner wall of the condenser.

3. The processing apparatus for edible mushrooms according to claim 2, wherein The steam kinetic energy recovery device is connected with the vacuum pipe through a Venturi nozzle, and the nozzle is used for converting the diffused steam flow into a high-speed directional jet flow to improve the impact work on the turbine impeller.

4. The processing apparatus for edible mushrooms according to claim 1, wherein The gravity sensing actuating mechanism comprises: an outer cylinder having a cavity with an opening facing upward, and a fixing seat is arranged on the outer part of the outer cylinder and is fixedly connected with the outer cylinder; a rotating basket arranged in the cavity of the outer cylinder, and a bottom plate is arranged at the bottom of the rotating basket, and a plurality of first springs are arranged at the lower part of the bottom plate; a rotating shaft, the outer periphery of which is provided with an integrally connected stirring rod, the stirring rod and the rotating shaft are hollow structures, the locking rods are arranged opposite in the stirring rod, the second springs are arranged between the locking rods, a symmetric first roller is arranged at one end of the rotating shaft close to the locking rods, and two groups of gear wheels with spools are arranged at one end of the rotating shaft away from the first roller; a silk rope, one end of which is connected with one end of the locking rod, and the other end is wound on the gear wheels with spools through the opposite side of the first roller; a driving motor, the driving end of which is provided with a connecting cavity, and the connecting cavity is provided with a rack.

5. The processing apparatus for edible mushrooms according to claim 4, wherein A sealing bearing is arranged between the rotating basket and the rotating shaft.

6. The processing apparatus for edible mushrooms according to claim 4, wherein Insert slots are arranged on both sides of the connecting cavity, and an insertion rod corresponding to the insert slots is arranged at the bottom of the rotating shaft.

7. The processing apparatus for edible mushrooms according to claim 4, wherein A leakage hole is arranged on the outer periphery of the rotating basket, and the diameter of the locking rod is less than or equal to the diameter of the leakage hole.

8. The processing apparatus for edible mushrooms according to claim 1, wherein A passive gravity liquid discharge valve is arranged at the bottom of the vacuum tank, which comprises a counterweight sealing cover, and the static pressure of the accumulated condensed water is used to overcome the closing force of the pre-set counterweight block to realize automatic intermittent liquid discharge in the vacuum state.

9. A process for processing edible mushrooms, characterized by, The method comprises the following steps: S1. Pretreatment and ultrasonic color protection: the trimmed edible mushroom material is immersed in an ultrasonic pool, and the ultrasonic cavitation effect is used to make the color protection agent penetrate and remove impurities; S2. Quick freezing and fresh-keeping: the material is quickly frozen at -18°C to -30°C, so that the internal water forms ice crystal microstructure; S3. Vacuum low-temperature frying and bidirectional linkage: hot oil is injected in a vacuum environment of -0.095 MPa, and the built-in turbine is driven by the steam kinetic energy generated by the material vaporization to realize self-cleaning linkage of the condenser wall. S4. Physical perception dehydration: Real-time monitoring of material weight changes, using the first spring to rebound with weight loss, driving the spiral cam mechanism to rotate to the preset critical point, physically triggering the switch to make the basket separate from the oil surface; S5. Vacuum self-adaptive oil removal: After receiving the trigger signal, the centrifuge jumps to high-frequency oil removal mode in a vacuum environment, using centrifugal force to remove grease; S6. Breaking vacuum and packaging: Dry cold air or nitrogen is introduced, and the finished product is collected and sealed with nitrogen.

10. The processing technology of edible fungi according to claim 9, characterized in that, In step S3, the steam-driven self-cleaning linkage refers to using the exhaust pressure energy generated by the rapid vaporization of the material moisture to drive the axial flow turbine impeller located in the vacuum pipeline, and then drive the coaxial scraper to clean the inner wall of the condenser, so as to maintain the high vacuum degree of the system.

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