Sterilization device for edible mushroom breeding
By using a rotary heating mechanism and a waste heat recovery system, the problem of temperature stratification in edible fungus breeding equipment was solved, achieving uniform sterilization of the mushroom bags and energy saving, thus improving sterilization efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-20
AI Technical Summary
In existing edible mushroom breeding devices, the natural convection of steam from bottom to top causes a temperature difference between the upper and lower layers of mushroom bags, resulting in over-sterilization of the lower layer and incomplete sterilization of the upper layer.
The system employs a rotary heating mechanism and a waste heat recovery system. The motor drives the drum to rotate at a constant speed, allowing the mushroom bags to periodically contact different temperature zones. Combined with a suction pump, high-temperature waste heat steam is used for insulation, avoiding temperature stratification and reducing energy waste.
It achieves uniform sterilization of the mushroom bags, avoids over- or incomplete sterilization, saves energy consumption, and improves sterilization efficiency and quality.
Smart Images

Figure CN224007349U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of edible fungi breeding technology, specifically a sterilization device for edible fungi breeding. Background Technology
[0002] Edible fungi are produced by their white or light-colored mycelium in environments rich in organic matter. Under suitable conditions, they form fruiting bodies, becoming a popular delicacy. The core of edible fungi cultivation is thorough sterilization. Incomplete sterilization will reduce the yield or even lead to complete contamination. The purpose of sterilization is simply to use high temperature and high pressure to kill all microorganisms (including spores) in the culture medium, achieving a sterile state.
[0003] As disclosed in CN208338502U, a sterilization device for edible fungi breeding includes a body with a breeding rack fixedly connected to its inner cavity. A heating device is fixedly connected to the bottom of the inner cavity. The heating device includes a heating quartz tube, a heating wire, and a cooling quartz tube. The bottom of the cooling quartz tube is fixedly connected to the top of the heating quartz tube, and molybdenum conduits are provided at both ends of the heating quartz tube. The beneficial effects of this invention are as follows: by setting up a heating device, and utilizing the combined action of the heating quartz tube, heating wire, cooling quartz tube, molybdenum conduit, infrared heating element, and heat-conducting plate, the edible fungi on the breeding rack can be effectively sterilized. This effectively increases the sterilization efficiency of edible fungi, saves working time, increases work efficiency, and ensures the production quality of edible fungi.
[0004] Although the aforementioned patent can effectively sterilize edible fungi on the breeding rack, the sterilization device causes steam to naturally convection from bottom to top due to bottom heating, resulting in a temperature difference between the upper and lower layers of fungal bags. This leads to over-sterilization of the lower layer and under-sterilization of the upper layer. Utility Model Content
[0005] The purpose of this invention is to provide a sterilization device for edible fungi breeding, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A sterilization device for edible mushroom breeding, comprising:
[0008] A heating box, on the top of which a sterilization box is fixedly installed, and a rotating heating mechanism is provided inside both the heating box and the sterilization box;
[0009] A machine box is fixedly installed at the top center of the sterilization box, and insulation boxes are fixedly installed on both sides of the outside of the sterilization box. A waste heat recovery mechanism is provided between the machine box and the insulation boxes.
[0010] Sterilization chambers are fixedly installed at the top of the sterilization chamber and on both sides of the machine casing, and a sterilization mechanism is provided between the sterilization chambers and the sterilization chamber.
[0011] Preferably, the rotary heating mechanism consists of a rotary assembly and a heating assembly. The rotary assembly includes a roller, which is movably installed in the middle of the inner side of the sterilization chamber. Several cylindrical grooves are formed in equal arcs inside the roller. A baffle is provided between the inner wall of the cylindrical groove and the outer wall of the roller. A motor is fixedly installed on the outside of the left side of the sterilization chamber, and the output shaft of the motor is fixedly connected to the roller.
[0012] Preferably, the heating assembly includes electric heating tubes, several electric heating tubes are installed side by side inside the heating box, a controller is fixedly installed on the front exterior of the heating box, a temperature sensor is fixedly installed on the lower front of the sterilization box, and a water supply pipe and a drain pipe are respectively connected to the upper and lower left sides of the heating box.
[0013] Preferably, the waste heat recovery mechanism includes a suction pump, which is fixedly installed inside the casing. The input end of the suction pump is connected to the inside of the sterilization chamber through a pipe. The output end of the suction pump has two output pipes fixedly installed through a three-way valve. The bottom end of the output pipes is connected to the heat preservation box. The upper and lower ends of the two heat preservation boxes are respectively connected to an exhaust pipe and a sewage pipe.
[0014] Preferably, the sterilization mechanism includes an installation slot, which is provided inside the sterilization chamber. Several ultraviolet lamps are installed side by side inside the installation slot, and a transparent cover is fixedly installed between the installation slot and the sterilization chamber.
[0015] Preferably, a circular window is provided in the middle of the right side of the sterilization chamber, and a door is installed on the outside of the circular window by means of a hinge.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. A sterilization device for edible fungi breeding, which uses a motor to drive a drum to rotate at a constant speed, so that the mushroom bags continuously change their spatial position in the drum, breaking the temperature stratification caused by natural steam convection. The mushroom bags periodically come into contact with steam in different temperature zones, avoiding over-sterilization of the lower layer due to long-term high temperature or incomplete sterilization of the upper layer due to insufficient steam upward force.
[0018] 2. The sterilization device for edible fungi breeding uses a suction pump to introduce high-temperature waste heat steam from the sterilization chamber into an insulated box. The water stored in the insulated box is heated through steam-water heat exchange. The heated water continuously insulates the outer wall of the sterilization chamber, maintaining the temperature of the outer wall. This reduces the energy consumption of continuous heating by the heating element and reduces energy waste compared to directly discharging waste heat steam. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall main structure of this utility model;
[0020] Figure 2 This is a cross-sectional view of the insulation box of this utility model;
[0021] Figure 3 This is a schematic diagram of the installation of the electric heating element of this utility model;
[0022] Figure 4 This is a schematic diagram of the installation of the barrier net of this utility model.
[0023] In the diagram: 1. Heating chamber; 2. Sterilization chamber; 3. Casing; 4. Insulation chamber; 5. Sterilization chamber; 6. Drum; 7. Cylinder trough; 8. Baffle net; 9. Motor; 10. Electric heating element; 11. Controller; 12. Temperature sensor; 13. Water supply pipe; 14. Drain pipe; 15. Suction pump; 16. Output pipe; 17. Exhaust pipe; 18. Sewage pipe; 19. Mounting slot; 20. Ultraviolet lamp; 21. Transparent cover; 22. Circular window; 23. Chamber door. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] like Figures 1-4 As shown, this utility model provides a technical solution:
[0026] A sterilization device for edible fungi breeding includes a heating chamber 1, a sterilization chamber 2 fixedly mounted on the top of the heating chamber 1, and a rotary heating mechanism inside the heating chamber 1 and sterilization chamber 2. The rotary heating mechanism consists of a rotating component and a heating component. The rotating component includes a roller 6, which is movably mounted in the middle of the inner side of the sterilization chamber 2. Several cylindrical grooves 7 are formed at equal arcs inside the roller 6. A baffle 8 is provided between the inner wall of the cylindrical grooves 7 and the outer wall of the roller 6. A motor 9 is fixedly mounted on the outer left side of the sterilization chamber 2, and the output shaft of the motor 9 is fixedly connected to the roller 6. The heating component includes electric heating tubes 10, which are installed side by side inside the heating chamber 1. The heating component is located on the outer front side of the heating chamber 1. A controller 11 is fixedly installed. A temperature sensor 12 is fixedly installed on the lower front of the sterilization chamber 2. A water supply pipe 13 and a drain pipe 14 are connected to the upper and lower ends of the left side of the heating chamber 1, respectively. A circular window 22 is opened in the middle of the right side of the sterilization chamber 2. A door 23 is installed on the outside of the circular window 22 by a hinge. Sterilization chambers 5 are fixedly installed on the top of the sterilization chamber 2 and on both sides of the casing 3. A sterilization mechanism is set between the sterilization chamber 5 and the sterilization chamber 2. The sterilization mechanism includes an installation groove 19. An installation groove 19 is opened inside the sterilization chamber 5. Several ultraviolet lamps 20 are installed side by side inside the installation groove 19. A transparent cover 21 is fixedly installed between the installation groove 19 and the sterilization chamber 2.
[0027] In this embodiment, the roller 6 is driven by the motor 9 to rotate at a constant speed, so that the mushroom bag continuously changes its spatial position in the cylinder trough 7, breaking the temperature stratification phenomenon caused by natural steam convection. The mushroom bag is periodically exposed to steam in different temperature zones, avoiding over-sterilization of the lower layer due to long-term high temperature or incomplete sterilization of the upper layer due to insufficient steam upward force.
[0028] like Figure 1 and Figure 2 As shown, a machine box 3 is fixedly installed at the top center of the sterilization box 2, and heat preservation boxes 4 are fixedly installed on both sides of the sterilization box 2. A waste heat recovery mechanism is set between the machine box 3 and the heat preservation boxes 4. The waste heat recovery mechanism includes a suction pump 15. The suction pump 15 is fixedly installed inside the machine box 3. The input end of the suction pump 15 is connected to the inside of the sterilization box 2 through a pipe. The output end of the suction pump 15 is fixedly installed with two output pipes 16 through a three-way valve. The bottom end of the output pipe 16 is connected to the heat preservation box 4. The upper and lower ends of the two heat preservation boxes 4 are respectively connected to an exhaust pipe 17 and a sewage pipe 18.
[0029] In this embodiment, the suction pump 15 introduces the high-temperature waste heat steam in the sterilization chamber 2 into the insulation chamber 4. The water pre-stored in the insulation chamber 4 is heated by the steam-water heat exchange. The heated water continuously insulates the outer wall of the sterilization chamber 2, maintaining the temperature of the outer wall of the sterilization chamber 2. This can reduce the energy consumption of the heating tube for continuous heat replenishment. Compared with directly discharging the waste heat steam, it can reduce energy waste.
[0030] Working principle: During operation, an appropriate amount of water is first injected into the heating chamber 1 through the water supply pipe 13. Then, the controller 11 activates the electric heating element 10 to heat the water and generate steam. The steam enters the sterilization chamber 2 from bottom to top. At the same time, the motor 9 drives the roller 6 to rotate at a uniform speed, causing the equally arc-shaped grooves 7 to periodically change the spatial position of the mushroom bags. By dynamically adjusting the contact position between the mushroom bags and the steam, the temperature difference between the upper and lower layers is eliminated. The temperature sensor 12 monitors the temperature inside the sterilization chamber 2 in real time and feeds it back to the controller 11. When the temperature exceeds the specified value, the temperature sensor will detect the temperature difference. When the threshold is set, the power of the electric heating tube 10 is automatically adjusted; the ultraviolet lamp tube 20 in the sterilization chamber 5 assists in sterilizing the top space of the sterilization chamber 2 through the transparent cover 21, while the suction pump 15 draws the high-temperature residual heat steam in the sterilization chamber 2 to the insulated box 4 which is pre-filled with water. The high-temperature steam exchanges heat with the water in the insulated box 4. The heated water insulates the sterilization chamber 2 externally through the outer wall of the insulated box 4, thereby reducing heat loss and maintaining a stable internal temperature of the sterilization chamber 2. After sterilization is completed, the chamber door 23 can be opened to take out the bacterial pack.
[0031] It should be noted that the transparent cover 21 is made of UV-grade quartz glass or fluoropolymer, which makes the UVC transmittance >85%.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A sterilization device for edible fungi breeding, characterized in that: include A heating box (1) is provided, and a sterilization box (2) is fixedly installed on the top of the heating box (1). A rotating heating mechanism is provided inside the heating box (1) and the sterilization box (2). A machine box (3) is fixedly installed at the top center of the sterilization box (2), and heat preservation boxes (4) are fixedly installed on both sides of the outside of the sterilization box (2). A waste heat recovery mechanism is provided between the machine box (3) and the heat preservation box (4). Sterilization chambers (5) are fixedly installed at the top of the sterilization chamber (2) and on both sides of the casing (3), and a sterilization mechanism is provided between the sterilization chamber (5) and the sterilization chamber (2).
2. The sterilization device for edible fungi breeding according to claim 1, characterized in that: The rotary heating mechanism consists of a rotary component and a heating component. The rotary component includes a roller (6). The roller (6) is movably installed in the middle of the inner side of the sterilization chamber (2). Several cylindrical grooves (7) are opened in the inside of the roller (6) with equal arc. A baffle (8) is provided between the inner wall of the cylindrical groove (7) and the outer wall of the roller (6). A motor (9) is fixedly installed on the outside of the left side of the sterilization chamber (2). The output shaft of the motor (9) is fixedly connected to the roller (6).
3. The sterilization device for edible fungi breeding according to claim 2, characterized in that: The heating assembly includes an electric heating tube (10), several electric heating tubes (10) are installed side by side inside the heating box (1), a controller (11) is fixedly installed on the front exterior of the heating box (1), a temperature sensor (12) is fixedly installed below the front of the sterilization box (2), and a water supply pipe (13) and a drain pipe (14) are respectively connected to the upper and lower ends of the left side of the heating box (1).
4. The sterilization device for edible fungi breeding according to claim 1, characterized in that: The waste heat recovery mechanism includes a suction pump (15), which is fixedly installed inside the casing (3). The input end of the suction pump (15) is connected to the inside of the sterilization box (2) through a pipe. The output end of the suction pump (15) has two output pipes (16) fixedly installed through a three-way valve. The bottom end of the output pipe (16) is connected to the heat preservation box (4). The upper and lower ends of the two heat preservation boxes (4) are respectively connected to an exhaust pipe (17) and a sewage pipe (18).
5. The sterilization device for edible fungi breeding according to claim 1, characterized in that: The sterilization mechanism includes an installation slot (19). An installation slot (19) is provided inside the sterilization box (5). Several ultraviolet lamps (20) are installed side by side inside the installation slot (19). A transparent cover (21) is fixedly installed between the installation slot (19) and the sterilization box (2).
6. The sterilization device for edible fungi breeding according to claim 1, characterized in that: A circular window (22) is provided in the middle of the right side of the sterilization box (2), and a door (23) is installed on the outside of the circular window (22) by means of a hinge.
Citation Information
Patent Citations
Sterilization apparatus of domestic fungus breeding usefulness
CN208338502U