Cross-contamination prevention sterilization device for pleurotus eryngii

The king oyster mushroom sterilization device, which prevents cross-contamination, solves the problem of cross-contamination in king oyster mushroom production by using spraying of sterilizing substances, ultraviolet light assistance, and rotary spraying of disinfectant. It achieves efficient sterilization and rapid drying, and eliminates cross-contamination between devices.

CN224306681UActive Publication Date: 2026-06-02FUJIAN JIATIAN AGRI DEV
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Patent Information

Application Number
CN202521068421.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-28
Publication Date
2026-06-02
Estimated Expiration
2035-05-28

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Abstract

The utility model relates to the field of pleurotus eryngii processing, especially a kind of pleurotus eryngii sterilization device of preventing cross contamination, the device includes sterilization cabinet.In use, first by sterilization pipe spraying sterilization material, then using ultraviolet lamp auxiliary to the pleurotus eryngii on shelf sterilization.And after each batch pleurotus eryngii completes sterilization and is removed, by rotating the disinfection pipe sprays disinfectant, eliminates the microorganism of the internal and shelf residual of containing space, prepares for the sterilization of next batch pleurotus eryngii, ensures that each batch has no physical contact, systematically solves cross contamination problem, simultaneously by drying hole carries out quick drying.The utility model adopts sterilization material and ultraviolet line synergic sterilization technology, can greatly improve sterilization rate;And original batch interval automatic disinfection drying, by rotating spraying disinfectant and hot air drying, ensure the cleanliness of device, make sterilization device complete disinfection program only then allow next batch operation, from process to eliminate cross contamination.
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Description

Technical Field

[0001] This utility model relates to the field of king oyster mushroom processing, and in particular to a king oyster mushroom sterilization device to prevent cross-contamination. Background Technology

[0002] King oyster mushrooms, a highly nutritious edible fungus in large market demand, require multiple processes during factory production, including cleaning, sorting, and sterilization. Sterilization is a crucial step in ensuring product hygiene and safety and extending shelf life. Traditional sterilization equipment (such as conveyor belt ultraviolet sterilizers) typically operates continuously, and batches of king oyster mushrooms may come into contact with each other via conveyor belts, containers, or residual water, leading to cross-contamination of microorganisms. Summary of the Invention

[0003] To address the shortcomings mentioned above in the background technology, this utility model provides a sterilization device for king oyster mushrooms that prevents cross-contamination.

[0004] The present invention adopts the following technical solution:

[0005] A sterilization device for king oyster mushrooms to prevent cross-contamination, characterized in that the device comprises:

[0006] A sterilization cabinet, wherein the sterilization cabinet has an internal storage space;

[0007] A placement rack, comprising several vertically arranged placement plates and supporting legs, the placement rack being used to support king oyster mushrooms and being able to be pushed into or pulled out of the accommodating space;

[0008] A sterilization tube is disposed on the inner wall of the accommodating space to spray sterilization substances.

[0009] An ultraviolet lamp is disposed on the inner wall of the accommodating space to assist in sterilization;

[0010] A disinfection tube, which is located within the accommodating space, can rotate and spray disinfectant;

[0011] A drying hole is provided on the inner wall of the accommodating space for drying the placement rack and the interior of the accommodating space.

[0012] As a further improvement, the edge of the placement plate is provided with a fence to prevent the king oyster mushrooms from slipping off.

[0013] As a further improvement, the bottom of the lowest support leg is equipped with a sliding base with casters for easy movement of the shelf.

[0014] As a further improvement, the inner walls on both sides of the accommodating space are provided with guide rails, and the sides of the slide are provided with guide wheels, so that the placement rack can slide smoothly along the guide rails.

[0015] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: In use, king oyster mushrooms are placed on the placement plate of the rack. In the sealed container, a sterilizing substance is first sprayed through a sterilization tube, followed by sterilization with the assistance of ultraviolet light. After each batch of king oyster mushrooms has been sterilized and removed, disinfectant is sprayed through a rotating disinfection tube in the sealed container again to eliminate residual microorganisms inside the container and on the rack, preparing for the sterilization of the next batch of king oyster mushrooms. This ensures no physical contact between batches, systematically solving the problem of cross-contamination. Simultaneously, rapid drying is achieved through drying holes. This utility model employs a synergistic sterilization technology of sterilizing substances and ultraviolet light, which can greatly improve the sterilization rate. Furthermore, it features a unique automatic batch-to-batch sterilization and drying process. Through rotating spraying of disinfectant and hot air drying, the cleanliness of the device is ensured, allowing the next batch to operate only after the sterilization process is completed, thus eliminating cross-contamination from the process perspective. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of a sterilization cabinet.

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the shelf.

[0019] Figure 4 This is a front view structural diagram of the present invention.

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure after the shelf is pulled out. Detailed Implementation

[0021] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0022] As attached Figure 1 and Figure 4 As shown, a sterilization device for king oyster mushrooms to prevent cross-contamination includes a sterilization cabinet 1, a placement rack 2, a sterilization tube 3, an ultraviolet lamp 4, and a disinfection tube 5. All components work together to ensure efficient and residue-free sterilization of the king oyster mushrooms, and completely eliminate batch-to-batch cross-contamination. The sterilization cabinet 1 has an internal storage space 11 made of 304 stainless steel with a mirror-polished inner wall (Ra≤0.8μm) to reduce microbial adhesion. The cabinet door 12 is an airtight electric sliding door with a food-grade silicone sealing strip embedded in the door frame, forming a completely sealed environment when closed to prevent external contaminants from entering the storage space 11.

[0023] As attached Figure 2 and Figure 3As shown, the accommodating space 11 is equipped with a placement rack 2, which includes several vertically arranged placement plates 21 and supporting legs 22. The placement plates 21 of the placement rack 2 are used to support king oyster mushrooms. The placement plates 21 are made of perforated stainless steel mesh (5mm aperture) to ensure that sterilization media (such as plasma, ultraviolet light) can penetrate to all surfaces of the king oyster mushrooms.

[0024] Preferably, each layer of the placement board 21 is provided with a fence 23 at its edge to prevent the king oyster mushrooms from rolling off. At the same time, the fence 23 can be raised and lowered along the support legs 22 to facilitate the cleaning of king oyster mushroom debris on the placement board 21 and reduce cross-contamination.

[0025] As attached Figure 4 As shown, the sterilization tube 3 is arranged in a ring along the inner wall of the accommodating space 11, spraying sterilizing substances. Specifically, it generates a low-temperature plasma jet through dielectric barrier discharge (DBD) technology, and uses the low-temperature plasma jet to sterilize the surface of the king oyster mushroom. It does not require contact with the medium, directly destroys the microbial DNA / RNA, leaves no residue, does not require chemical agents, and avoids contamination caused by liquid or gas residues.

[0026] Furthermore, the ultraviolet lamp 4 is installed on the inner wall of the accommodating space 11 to assist in sterilization and improve the sterilization efficiency and quality of the king oyster mushroom.

[0027] Preferably, as shown in the appendix Figure 2 and Figure 4 As shown, the disinfection tube 5 is located within the containing space 11. It can rotate and spray disinfectants such as food-grade peracetic acid. Specifically, the disinfection tube 5 is made of 316L stainless steel, which is corrosion-resistant and meets food hygiene standards. It connects to an external disinfectant supply system via a rotary joint. The tube body has micron-level atomizing nozzles evenly distributed throughout. The disinfection tube 5 is driven by a servo motor located inside the sterilization cabinet 1, allowing for stepless speed adjustment from 0-60 rpm, ensuring the disinfectant is evenly distributed within the containing space 11. After each batch of king oyster mushrooms has been sterilized and removed, the control system automatically starts the disinfection program, closes the cabinet door 12 of the containing space 11 to create a sealed environment, and sprays disinfectant through the rotating disinfection tube 5 to eliminate residual microorganisms inside the containing space 11 and on the shelf 2, preparing for the sterilization of the next batch of king oyster mushrooms. This ensures no physical contact between batches and systematically solves the problem of cross-contamination. In addition, the inner wall of the storage space 11 is provided with a drying hole 14. The drying hole 14 is connected to the high-efficiency air filter 141 and the electric heater 142 through the air duct, which can provide clean hot air at 50-60℃. After the disinfection process is completed, the drying system is automatically started to quickly dry the placement rack 2 and the inside of the storage space 11, thereby improving efficiency.

[0028] It is worth mentioning that, as shown in the attached document Figure 1 , Figure 3 and Figure 5As shown, the placement rack 2 can be pushed into or pulled out of the accommodating space 11. Specifically, the bottom of the lowest support leg 22 is equipped with a slide 24 with casters 26, which facilitates the movement of the placement rack 2. When placing and removing king oyster mushrooms, the placement rack 2 can be pulled out of the accommodating space 11, which facilitates the placement and removal of king oyster mushrooms.

[0029] Furthermore, the inner walls on both sides of the accommodating space 11 are provided with guide rails 13, and the slide 24 is provided with guide wheels 25 on both sides, so that the placement rack 2 can slide smoothly along the guide rails 13, ensuring that after the placement rack 2 is pushed into the accommodating space 11, it can be located within the rotation range of the disinfection tube 5, thus avoiding the disinfection tube 5 from hitting the placement rack 2 when rotating.

[0030] In summary, when using this invention, king oyster mushrooms are placed on the placement plate 21 of the placement rack 2. Within the sealed container space 11, a sterilizing agent is first sprayed through the sterilization tube 3, followed by sterilization assisted by an ultraviolet lamp 4. After each batch of king oyster mushrooms has been sterilized and removed, a disinfectant is sprayed through a rotating disinfection tube 5 within the sealed container space 11 to eliminate any residual microorganisms inside the container space 11 and on the placement rack 2, preparing for the sterilization of the next batch of king oyster mushrooms. This ensures no physical contact between batches, systematically solving the problem of cross-contamination. Simultaneously, rapid drying is achieved through the drying holes 14. This invention employs a synergistic sterilization technology combining sterilizing agents and ultraviolet light, significantly improving the sterilization rate. Furthermore, it uniquely features automatic batch-to-batch sterilization and drying, ensuring the cleanliness of the device through rotating disinfectant spraying and hot air drying. The next batch is only allowed to operate after the sterilization process is complete, eliminating cross-contamination from the process perspective.

[0031] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A sterilization device for king oyster mushrooms to prevent cross-contamination, characterized in that, The device includes: A sterilization cabinet, wherein the sterilization cabinet has an internal storage space; A placement rack, comprising several vertically arranged placement plates and supporting legs, the placement rack being used to support king oyster mushrooms and being able to be pushed into or pulled out of the accommodating space; A sterilization tube is disposed on the inner wall of the accommodating space to spray sterilizing substances; An ultraviolet lamp is disposed on the inner wall of the accommodating space to assist in sterilization; A disinfection tube, which is located within the accommodating space, can rotate and spray disinfectant; A drying hole is provided on the inner wall of the accommodating space for drying the placement rack and the interior of the accommodating space.

2. The cross-contamination prevention sterilization device for king oyster mushrooms as described in claim 1, characterized in that: The placement board is equipped with a railing around its edge to prevent the king oyster mushrooms from slipping off.

3. The cross-contamination prevention sterilization device for king oyster mushrooms as described in claim 1, characterized in that: The bottom of the lowest support leg is equipped with a sliding base with casters, making it easy to move and place the rack.

4. The cross-contamination prevention sterilization device for king oyster mushrooms as described in claim 3, characterized in that: The inner walls on both sides of the accommodating space are provided with guide rails, and the slide is provided with guide wheels on both sides, so that the placement rack can slide smoothly along the guide rails.