Bacteria bed treatment device, bacteria bed sterilization system, and bacteria bed sterilization method

Abstract

To provide a mushroom bed treatment device that can sterilize or cool a mushroom bed efficiently in a short time.SOLUTION: A mushroom bed treatment device 1 has an insertion part 21 that is inserted into a mushroom bed FB filled in a container CT, and is equipped with insertion treatment means 2 that heats the mushroom bed FB from the inside via the insertion part 21, and a drive device 3 that moves the mushroom bed FB and the insertion part 21 relatively to each other to insert and remove the insertion part 21 into and from the mushroom bed FB. Insertion treatment means 3 may also have a steam injection mechanism 22 that injects heated steam into the inside of the mushroom bed with the insertion part 21 inserted into the mushroom bed FB.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a fungal bed treatment device, a fungal bed sterilization system, and a fungal bed sterilization method suitable for efficiently performing treatments such as sterilization and cooling on fungal beds used for artificially cultivating mushrooms. [Background technology]

[0002] Recently, when artificially cultivating mushrooms such as shiitake mushrooms and maitake mushrooms, fungal bed cultivation bags made of plastic film have been used.

[0003] When artificially cultivating mushrooms using this type of fungal bed cultivation bag, first, an artificial culture medium (fungal bed) made by mixing a wood substrate such as sawdust with a nutrient source such as rice bran and adjusting the moisture content is filled into the fungal bed cultivation bag, and the bag is sterilized using high-pressure steam or the like. After that, mushroom spawn is inoculated into the fungal bed and cultured.

[0004] In the conventional process of sterilizing a bacterial bed, an operator places a large number of bacterial beds in a heat sterilization vessel while arranging them lengthwise and widthwise on a sterilization shelf or the like, and seals them. Then, high-temperature steam at about 100 to 120 degrees generated by a boiler is poured into the steam vessel, and the bacterial beds are heat-sterilized by the steam for a predetermined period of time (see, for example, Patent Document 1).

[0005] Furthermore, after the heat sterilization process, the mushroom bed needs to be cooled to a temperature at which the mushroom fungus can be inoculated, so workers remove the mushroom bed from the heat sterilization tank and transport it to a cooling facility where the mushroom bed is cooled at room temperature or in a low-temperature environment for the cooling process. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-207456 Summary of the Invention [Problem to be solved by the invention]

[0007] However, conventional methods of sterilizing mushroom beds using a heat sterilization boiler require a long time of about 4 to 10 hours for the steam heat sterilization process. Furthermore, the cooling time in the cooling facility also takes about 8 to 12 hours. Therefore, the sterilization and cooling process after filling the mushroom beds into cultivation bags often takes about half a day to two days, which is inefficient and requires high fuel costs, resulting in poor economics.

[0008] Furthermore, since it is more time- and fuel-efficient to process multiple culture beds at once, heat sterilization vessels and cooling facilities require relatively large installation spaces and the costs of the equipment and facilities are high.

[0009] Furthermore, since workers must carry a large number of bacterial beds into and out of the heat sterilization vessel and cooling facility, there are problems of cumbersome work, time, and labor costs.

[0010] The present invention has been made to solve the above-mentioned problems, and aims to provide a bacterial bed treatment device, a bacterial bed sterilization system, and a bacterial bed sterilization method that can sterilize or cool a bacterial bed efficiently in a short period of time. [Means for solving the problem]

[0011] In order to solve the above problems, the bacterial bed treatment apparatus of the present invention comprises an insertion processing means having an insertion part to be inserted into a bacterial bed filled in a container and heating or cooling the bacterial bed from the inside via the insertion part, and a drive device that moves the bacterial bed and the insertion part relatively to insert or remove the insertion part from the bacterial bed. The drive device may be configured to move the insertion part to insert it into the bacterial bed, or may be configured to move the bacterial bed side to the insertion part to insert it into the bacterial bed.

[0012] The insertion processing means may also have a steam injection mechanism that injects heated steam into the inside of the fungal bed while the insertion part is inserted into the fungal bed.

[0013] The insertion portion may have a nozzle portion that passes heated steam through the insertion portion and jets steam from a plurality of steam jet holes.

[0014] The insertion processing means may also have a cooling mechanism for cooling the insertion section.

[0015] The insertion portion may be formed of a rod-shaped body, and the drive device may have a linear motion mechanism that moves the insertion portion linearly along the longitudinal direction of the insertion portion. The linear motion mechanism may be configured, for example, by an actuator such as a cylinder having a piston rod.

[0016] The apparatus may further include a sealed booth in which a sealed storage space for storing the fungal bed is formed, and the insertion unit may be installed inside the sealed booth.

[0017] The sealed booth may further include a bacterial bed holding means for holding the bacterial bed at a position corresponding to the insertion portion.

[0018] The bacterial bed holding means may also have a cooling member applied to the outer surface of the bacterial bed.

[0019] The insertion part may be provided with a temperature measuring means for measuring the temperature of the fungal bed.

[0020] Furthermore, the bacterial bed sterilization system of the present invention comprises a bacterial bed sterilization device having an insertion section that is inserted into and removed from a bacterial bed filled in a container via a drive device, and equipped with an insertion processing means that heat-sterilizes the bacterial bed from the inside via the insertion section; a bacterial bed cooling device having a second insertion section that is inserted into and removed from the bacterial bed via a second drive device, and equipped with a second insertion processing means that cools the bacterial bed from the inside via the second insertion section; and a transport device that transports the bacterial bed from the bacterial bed sterilization device to the bacterial bed cooling device.

[0021] Furthermore, the method for sterilizing a fungal bed of the present invention includes a steam sterilization step of inserting an insertion part of an insertion processing means equipped with a steam injection mechanism for injecting heated steam into a fungal bed filled in a container, and sterilizing the fungal bed by injecting heated steam into the inside of the fungal bed through the insertion part for a predetermined period of time.

[0022] The method may further include, after the steam sterilization step, a cooling step of inserting a second insertion part cooled by a cooling means into the bacterial bed for a predetermined time to cool the bacterial bed. [Effects of the Invention]

[0023] According to the bacterial bed treatment device of the present invention, there is provided an insertion treatment means having an insertion part that is inserted into a bacterial bed filled in a container and that heats or cools the bacterial bed from the inside via the insertion part, and a drive device that moves the bacterial bed and the insertion part relatively to insert or remove the insertion part from the bacterial bed, so that by heating or cooling the bacterial bed from the inside, it is possible to heat sterilize or cool the bacterial bed highly efficiently in a short time. Furthermore, the device can be made compact to save space and can be manufactured at low cost.

[0024] Furthermore, the mushroom bed sterilization system of the present invention comprises a mushroom bed sterilization device having an insertion section that is inserted into and removed from a mushroom bed filled in a container via a drive device, and equipped with an insertion processing means that heats and sterilizes the mushroom bed from the inside via the insertion section; a mushroom bed cooling device having a second insertion section that is inserted into and removed from the mushroom bed via a second drive device, and equipped with a second insertion processing means that cools the mushroom bed from the inside via the second insertion section; and a transport device that transports the mushroom bed from the mushroom bed sterilization device to the mushroom bed cooling device, thereby significantly reducing the labor required by the worker and enabling the mushroom bed to be sterilized efficiently in an extremely short time. [Brief explanation of the drawings]

[0025] [Figure 1] FIG. 1 is a schematic explanatory diagram of a bacterial bed sterilization device according to a first embodiment of the present invention. [Figure 2] FIG. 3 is an explanatory diagram of the operation of the bacteria bed treatment apparatus of FIG. 2. [Figure 3] FIG. 10 is a schematic explanatory diagram of a bacterial bed sterilization device according to a second embodiment of the present invention. [Figure 4] FIG. 1 is a schematic explanatory diagram showing a bacterial bed sterilization system according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0026] The present invention will be described in more detail below using preferred embodiments, but the following embodiments are merely examples of realizing the present invention and the present invention is not limited thereto.

[0027] The mushroom bed treatment device, mushroom bed sterilization system, and mushroom bed sterilization method of the present invention can be used, for example, when carrying out sterilization or other treatments on mushroom beds for artificial cultivation that are filled into bags or bottle-shaped containers.

[0028] 1 and 2 show a first embodiment of a bacterial bed treatment device of the present invention. As shown in Fig. 1 and 2, the bacterial bed treatment device 1 according to this embodiment comprises an insertion processing means 2 having an insertion part 21 for inserting into the bacterial bed FB, and a drive device 3.

[0029] In this embodiment, the fungal bed FB to be treated is treated in a state where it is filled into a container CT, which is a bag for fungal bed cultivation made of a plastic film such as polyethylene or polypropylene.

[0030] The mushroom bed FB is prepared by mixing a wood substrate such as sawdust with a nutrient source such as rice bran to adjust the moisture content, and then mechanically filling the container CT using a conventional filling machine and molding it into a block. The mushroom bed FB may also be filled into a relatively hard bottle-shaped container or other container and molded into a block.

[0031] In this embodiment, an example will be described in which the bacterial bed treatment apparatus 1 is implemented as a bacterial bed sterilization apparatus 11 that heat-sterilizes a bacterial bed.

[0032] As shown in Figure 1, the bacterial bed treatment device 1 has a sealed booth 4 that houses the bacterial bed FB. The sealed booth 4 forms a storage space 41 in which the bacterial bed FB is placed on the underside and stored in a sealed manner. The storage space 41 is provided with a size large enough to allow multiple bacterial beds FB to be arranged in a row, and with a height large enough to allow an insertion unit 21 to be installed above the bacterial bed FB. The multiple bacterial beds FB may be arranged in a row, a matrix, or in any other desired arrangement within the sealed booth 4.

[0033] The sealed booth 4 is fitted with components such as an insertion processing means 2 and a drive device 3. The floor of the sealed booth 4 on which the bacterial bed FB is placed is made up of a transport device 5, which will be described later. An entrance shutter 42 and an exit shutter 43 are provided on a pair of opposing side walls of the sealed booth 4, and can be opened and closed.

[0034] The entrance shutter 42 and the exit shutter 43 are shutters that move up and down to open and close under the control of, for example, the control unit 6. The entrance shutter 42 and the exit shutter 43 move up and down by a conventionally known lifting mechanism that utilizes, for example, a motor, a cylinder, or the like, to open and close the side walls of the sealed booth 4.

[0035] The conveying device 5 is a bacterial bed conveying means that conveys the bacterial bed FB in one direction D while it is placed on the conveying device 5, and stops the bacterial bed FB at a predetermined position such as the sealed booth 4. The conveying device 5 is, for example, made of a metal belt conveyor, and is controlled by the control unit 6 to feed the bacterial bed FB at an intermittent pitch.

[0036] The insertion processing means 2 is a sterilization means for heat sterilizing the bacterial bed FB from the inside via the insertion part 21.

[0037] The insertion processing means 2 has an insertion part 21 to be inserted into the bacterial bed FB, and a steam injection mechanism 22 that injects heated steam into the bacterial bed while the insertion part 21 is inserted into the bacterial bed FB.

[0038] The insertion part 21 is, for example, a hollow rod-shaped body made of stainless steel that is hollow so that steam can flow inside. One end of the insertion part 21 is tapered so that it can be inserted into the fungal bed FB in a piercing manner, and the part that is inserted into the fungal bed FB is perforated with multiple steam injection holes for ejecting steam, forming a nozzle part 21a.

[0039] The insertion part 21 is installed in a hanging manner with its longitudinal direction facing up and down at the upper side within the storage space 41 of the sealed booth 4, and its upper end is connected to and supported by the drive device 3. That is, in this embodiment, the insertion part 21 is provided so as to be inserted in a piercing manner from above the fungal bed FB, and a nozzle part 21a that is inserted into the fungal bed FB is formed on the lower end side.

[0040] The insertion parts 21 are arranged side by side so that multiple insertion parts 21 are inserted into one bacterial bed FB, and are assembled to the drive device 3. In this embodiment, since multiple bacterial beds FB are accommodated in the storage space 41 of one sealed booth 4, multiple sets of insertion parts 21 are arranged for each bacterial bed FB.

[0041] The insertion part 21 is provided with a temperature measuring means 7 that measures the temperature of the fungal bed FB when it is inserted into the fungal bed FB. The temperature measuring means 7 is, for example, a temperature sensor with an element attached to the tip of a wire. The temperature measuring means 7 is electrically connected to the control part 6 and passes temperature data to the control part 6.

[0042] The steam injection mechanism 22 includes, for example, a boiler 221 for generating steam, an air pipe 222 for sending the heated steam generated in the boiler 221 to the insertion section 21, and the nozzle section 21a of the insertion section 21 described above.

[0043] The boiler 221 can be a conventionally known boiler, heats water to generate high-pressure or normal-pressure steam, and sends the steam to the insertion section 21 via the air pipe 222.

[0044] The air supply pipe 222 connects the boiler 221 and the insertion section 21, and controls or stops supplying steam to the insertion section 21 via an on-off valve that is controlled to open and close by the control section 6. The air supply pipe 222 may be formed of a flexible pipe or the like so as to accommodate the up and down movement of the insertion section 21.

[0045] The driving device 3 is a driving means for moving the fungal bed FB and the insertion part 21 relative to each other to insert or remove the insertion part 21 into or from the fungal bed.

[0046] In this embodiment, the drive device 3 inserts and removes the inserting part 21 by moving the inserting part 21 up and down relative to the fungal bed FB placed on the transport device 5. The drive device 3 may also be configured to insert the fungal bed into the inserting part 21 by moving the fungal bed side.

[0047] The drive unit 3 has an actuator such as a cylinder 31, which is electrically or hydraulically driven, and is attached to the upper wall of the sealed booth 4. The drive unit 3 has a movable piston rod of the cylinder attached to the upper end of an insertion part 21 arranged inside the sealed booth 4.

[0048] The drive device 3 moves the insertion part 21 up and down in a vertical direction by linearly reciprocating the movable piston rod 32 of the cylinder 31 up and down, and inserts and removes the nozzle part 21a at the lower end of the insertion part 21 from above the fungal bed FB. In other words, the drive device 3 has a linear motion mechanism that moves the insertion part 21 linearly along the longitudinal direction of the insertion part 21.

[0049] As shown in FIG. 2, the drive device 3 is set to an insertion depth such that the tip of the insertion part 21 stops at a position about 10 mm above the lower end of the fungal bed FB, for example.

[0050] Furthermore, in this embodiment, the sealed booth 4 is provided with a holding means 8 for holding the container CT filled with the bacterial bed FB. This prevents the insertion part 21 from being subjected to an impact when inserting the bacterial bed FB and the bacterial bed FB from accidentally shifting when being removed, allowing for reliable and smooth insertion and removal operations.

[0051] The holding means 8 has a holding part 81 that is applied to the outside or inside of the container CT, for example, and holds the fungal bed FB in a position directly below the insertion part 21. The holding part 81 is attached, for example, to the inner surface of the upper part of the fungal bed cultivation bag when it is opened, and holds the position of the cultivation bag while maintaining its shape. The holding part 81 of the holding means 8 is configured to move up and down in conjunction with the up and down movement of the entrance shutter 42 or the exit shutter 43, for example.

[0052] The control unit 6 is equipped with, for example, a timing means such as a timer and various sensors, and is also connected to a temperature measuring means 7, and is a control means that controls the insertion processing means 2, drive device 3, sealed booth 4, conveying device 5, holding means 8, etc. under conditions preset by a program or sequence.

[0053] The control unit 6 controls the intermittent pitch feeding operation by the conveying device 5 and the opening and closing operations of the entrance shutter 42 and exit shutter 43 of the sealed booth 4 based on data from a timer and a sensor.

[0054] Based on data from sensors such as a timer and temperature measuring means 7, the control unit 6 controls the drive device 3 to insert and remove the insertion part 21 into and from the bacterial bed, and controls the steam injection means to start and stop injection of steam.

[0055] Next, a method for sterilizing a bacterial bed using the bacterial bed treatment device 1 of this embodiment as the bacterial bed sterilization device 11 will be described.

[0056] First, prepared raw materials such as sawdust are filled into a container CT such as a culture bed cultivation bag using a culture bed molding machine before the culture bed treatment device 1, and the culture bed FB is molded into a block shape. The culture bed FB is placed on a conveying device 5 and automatically transported to the culture bed treatment device 1. During the sterilization treatment, the bag, which is the container CT filled with the culture bed FB, is treated with the top spread open.

[0057] In the bacterial bed processing apparatus 1, in order to accommodate the bacterial bed FB in the sealed booth 4, the entrance shutter 42 is opened, and the bacterial bed FB is carried in by the feeding operation of the transport device 5 and stopped at a predetermined position corresponding to the insertion part 21. Once the bacterial bed FB is accommodated in the sealed booth 4, the entrance shutter 42 is closed. Furthermore, the upper part of the container CT filled with the bacterial bed FB is held by the holding means 8 at the predetermined position.

[0058] The insertion part 21 is lowered via the drive device 3, and the nozzle part 21a at its lower end is inserted to a predetermined depth from above the bacterial bed FB. In this inserted state, heated steam is injected from the nozzle part 21a of the insertion part 21 via the steam injection mechanism 22 for approximately 30 to 40 seconds. As a result, the bacterial bed FB is sterilized by heated steam from the inside. Note that the injection time of heated steam, i.e., the sterilization time, may be adjusted based on temperature data from the temperature measuring means 7.

[0059] The insertion part 21 is raised by the driving device 3, and the insertion part 21 is removed from the fungal bed FB.

[0060] The exit shutter 43 of the sealed booth 4 is opened, and the bacterial bed FB is carried out by the feeding operation of the conveying device 5. The entrance shutter 42 and the exit shutter 43 are controlled to open and close simultaneously, and the conveying device 5 synchronously carries out the carry-out of the sterilized bacterial bed FB and carries in the untreated bacterial bed FB. By repeating this operation, the bacterial bed FB can be continuously sterilized.

[0061] Next, a second embodiment of the bacterial bed treatment apparatus 1 will be described with reference to Fig. 3. The same members as those in the above embodiment are given the same reference numerals, and detailed description thereof will be omitted.

[0062] In this embodiment, an example will be described in which the bacterial bed treating apparatus 1 is implemented as a bacterial bed cooling apparatus 12 for cooling the bacterial bed after heat sterilization in the previous embodiment.

[0063] In this embodiment, as in the previous embodiment, the bacterial bed processing apparatus 1 includes an insertion processing means 2 having an insertion section 21, a driving device 3, a sealed booth 4, a conveying device 5, a holding means 8, and a temperature measuring means 7, as shown in Figure 3.

[0064] In this embodiment, the insertion processing means 2 is configured for cooling. That is, the insertion processing means 2 is a cooling means that cools the fungal bed FB from the inside via the insertion part 21, and includes the insertion part 21 and a cooling mechanism 23 that cools the insertion part 21.

[0065] In this embodiment, the insertion part 21 is made of a rod-shaped body made of a metal with high thermal conductivity, such as copper. The lower end of the insertion part 21 is formed in a tapered shape. By inserting the insertion part 21 into the fungal bed FB, the fungal bed FB is cooled mainly by thermal conduction.

[0066] The insertion processing means 2 may be configured to cool the culture bed from the inside by providing a nozzle part for injecting gas into the insertion part 21. In this case, a cooling gas injection mechanism may be provided instead of the steam injection mechanism of the above embodiment.

[0067] The cooling mechanism 23 may be a conventionally known cooling device such as a Peltier element, a chiller, a heat pump, etc. The cooling mechanism 23 cools the insertion section 21.

[0068] Furthermore, in this embodiment, the cooling mechanism 23 cools the air in the storage space 41 of the sealed booth 4.

[0069] In this embodiment, the holding means 8 has, for example, a cooling member 82 that is applied to the outer surface of the bacterial bed FB. The cooling member 82 is also provided so as to move up and down in synchronization with the holding part 81 that holds the opening side of the upper part of the container. The cooling member 82 is cooled by the cooling mechanism 23.

[0070] A case where a bacterial bed is cooled using the bacterial bed processing device 1 of this embodiment will be described. In this embodiment, too, during the cooling process, the bag, which is the container CT filled with the bacterial bed FB, is processed with the top unfolded and open. The bacterial bed processing device 1 as the bacterial bed cooling device 12 of this embodiment is, for example, arranged behind the bacterial bed sterilizer 11 as in the above-mentioned embodiment, and cools the bacterial bed FB after heat sterilization.

[0071] In the bacterial bed processing apparatus 1, in order to accommodate the bacterial bed FB in the sealed booth 4, the entrance shutter 42 is opened, and the bacterial bed FB is carried in by the feeding operation of the transport device 5 and stopped at a predetermined position corresponding to the insertion part 21. Once the bacterial bed FB is accommodated in the sealed booth 4, the entrance shutter 42 is closed. Furthermore, the upper part of the container CT filled with the bacterial bed FB is held by the holding means 8 at the predetermined position, and a cooling member 82 is applied to the outer surface of the container.

[0072] The insertion part 21 is lowered via the drive device 3, and its lower end is inserted from the top of the fungal bed FB to a predetermined depth. This inserted state is maintained for approximately 30 to 40 seconds. This allows the fungal bed FB to cool from the inside. The cooling time may be adjusted based on temperature data from the temperature measuring means 7.

[0073] The insertion part 21 is raised by the driving device 3, and the insertion part 21 is removed from the fungal bed FB.

[0074] The exit shutter 43 of the sealed booth 4 is opened, and the bacterial bed FB is carried out by the transport operation of the transport device 5. The entrance shutter 42 and the exit shutter 43 are controlled to open and close simultaneously, and the transport device 5 synchronously carries out the cooled bacterial bed FB and carries in the untreated bacterial bed FB. By repeating this operation, the bacterial bed FB can be continuously cooled.

[0075] That is, by providing a cooling process using the fungus bed cooling device 12 after the sterilization process using heated steam by the fungus bed sterilization device 11 of the above embodiment, the entire sterilization process can be significantly shortened, and the subsequent process of inoculating the fungus bed with mushroom spawn can be carried out smoothly.

[0076] Next, the bacterial bed sterilization system 10 of the present invention will be described with reference to Figure 4. The same members as those in the above embodiment are given the same reference numerals, and detailed description will be omitted.

[0077] The bacterial bed sterilization system 10 of this embodiment includes a first bacterial bed treatment device 1 as the above-mentioned bacterial bed sterilization device 11, a second bacterial bed treatment device 1 as the above-mentioned bacterial bed cooling device 12, and a conveying device 5.

[0078] In the bacterial bed sterilization system 10 of this embodiment, for the sake of explanation, the elements of the bacterial bed sterilization device 11 are referred to as a first insertion part 21, a first insertion processing means 2, a first drive device 3, . . .

[0079] In order to distinguish the elements of the bacteria bed cooling device 12 from the elements of the bacteria bed sterilization device 11, they are referred to as a second insertion section 21, a second insertion processing means 2, a second driving device 3, etc.

[0080] In this embodiment, a preliminary cooling booth 45 is provided between the bacterial bed sterilizer 11 and the bacterial bed cooling device 12. The preliminary cooling booth 45 can cool the high-temperature bacterial bed FB that has been heat-sterilized to some extent in a room temperature space before the bacterial bed cooling device 12.

[0081] The preliminary cooling booth has an entrance through the exit shutter 43 of the bacterial bed sterilizer 11 and an exit through the entrance shutter 42 of the bacterial bed cooling device 12, and opens and closes in conjunction with these shutters to load and unload the bacterial bed FB.

[0082] The outlet shutter of the sealed booth of the bacteria bed sterilizer 11 and the inlet shutter of the sealed booth of the bacteria bed cooling device 12 may be common, and the sealed booths may be directly connected to each other.

[0083] The conveying device 5 conveys the bacterial bed FB to the bacterial bed sterilizer 11, the preliminary cooling booth 45, and the bacterial bed cooling device 12 in this order.

[0084] In this way, by installing the bacterial bed sterilizer 11 and the bacterial bed cooling device 12 side by side and continuously transporting the bacterial bed FB with the transport device 5, the heat sterilization process and the cooling process can be performed consecutively. As a result, the labor of the workers is significantly reduced and the bacterial bed can be sterilized highly efficiently in an extremely short time.

[0085] In addition, upstream of the conveying direction (D) of the conveying device 5 of the mushroom bed sterilization system 10, a mushroom bed forming machine FE is installed, which fills raw materials such as adjusted sawdust BS into a container CT such as a mushroom bed cultivation bag and forms the mushroom bed FB into a block shape.

[0086] Meanwhile, downstream of the conveying device 5 of the fungal bed sterilization system 10 in the conveying direction (D), an inoculation machine DE is installed to inoculate the fungal bed FB conveyed from the fungal bed cooling device 12 with a mushroom spawn SD.

[0087] Molding, bacterial bed sterilization and cooling, and seed inoculation can be performed consecutively by conveying in one direction D with one conveying device 5. The molding machine FE, bacterial bed sterilization system 10, and inoculation machine DE may be installed, for example, in a clean room, so that the above operations can be performed in a clean environment. [Industrial Applicability]

[0088] The fungal bed treatment device, fungal bed sterilization system and fungal bed sterilization method of the present invention can be suitably applied to the sterilization treatment of fungal beds for artificially cultivating mushrooms. [Explanation of symbols]

[0089] 1. Bacteria bed treatment equipment 10 Bacterial bed sterilization system 11 Bacterial bed sterilization equipment 12 Bacterial bed cooling device 2 Insertion Processing Means 21 Insertion section 21a Nozzle part 22 Steam injection mechanism 23 Cooling mechanism 3. Drive unit 4. Closed booth 41 Containment Space 5. Conveyor equipment 7 Temperature measurement means 8 Retention means 82 Cooling plate FB mushroom bed CT container

Claims

1. An insertion processing means having an insertion part to be inserted into the bacterial bed filled in the container, and heating or cooling the bacterial bed from the inside through the insertion part; A drive device that moves the fungus bed and the insertion part relatively to insert and remove the insertion part into and from the fungus bed, A bacterial bed treatment device, characterized in that the insertion treatment means has a cooling mechanism for cooling the insertion part.

2. 2. The bacteria bed treatment apparatus according to claim 1, wherein the insertion treatment means has a steam injection mechanism that injects heated steam into the bacteria bed while the insertion part is inserted into the bacteria bed.

3. 3. The bacteria bed treatment apparatus according to claim 2, wherein the insertion part has a nozzle part for passing heated steam through the inside and for spraying steam from a plurality of steam spray holes.

4. The insertion portion is formed of a rod-shaped body, 4. The bacteria bed treatment apparatus according to claim 1, wherein the drive device has a linear motion mechanism that moves the insertion part linearly along the longitudinal direction of the insertion part.

5. Further provided is a sealed booth in which a sealed storage space for storing the fungal bed is formed, 4. The bacteria bed treatment apparatus according to claim 1, wherein the insertion section is installed inside the sealed booth.

6. 6. The bacterial bed treatment apparatus according to claim 5, further comprising a bacterial bed holding means inside the sealed booth for holding the bacterial bed at a position corresponding to the insertion portion.

7. 7. The bacterial bed treatment apparatus according to claim 6, wherein the bacterial bed holding means has a cooling member applied to the outer surface of the bacterial bed.

8. 4. The bacterial bed treatment apparatus according to claim 1, wherein the insertion section is provided with a temperature measuring means for measuring the temperature of the bacterial bed.

9. A bacterial bed sterilization device having an insertion part that is inserted into and removed from a bacterial bed filled in a container via a drive device, and equipped with an insertion processing means that heat-sterilizes the bacterial bed from the inside via the insertion part; A bacterial bed cooling device having a second insertion part that is inserted into and removed from the bacterial bed via a second drive device, and a second insertion processing means that cools the bacterial bed from the inside via the second insertion part cooled by a cooling mechanism; A bacterial bed sterilization system comprising: a transport device that transports the bacterial bed from the bacterial bed sterilization device to the bacterial bed cooling device.

10. Inserting an insertion portion of an insertion processing means equipped with a steam injection mechanism for injecting heated steam into the bacterial bed filled in the container; a steam sterilization step of sterilizing the bacterial bed by injecting heated steam into the bacterial bed through the insertion part for a predetermined time, A bacterial bed sterilization method characterized by further comprising a cooling step of cooling the bacterial bed by inserting a second insertion part cooled by a cooling means into the bacterial bed for a predetermined time after the steam sterilization step.

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