KR20090127022A - Method and apparatus for sterilizing mushroom culture ground - Google Patents

Abstract

PURPOSE: A mushroom cultivation sterilizer and a sterilization method using the same are provided to rapidly perform the sterilization operation and exhaust the various kinds gas created in the disinfection process. CONSTITUTION: The method of sterilizing mushroom cultivation includes a step(S1) for sealing hermetically an inner part of a main body; a step(S2) for making the inner part of the main body with the vacuum condition; a step(S3) for supplying the steam to the inner part of the main body; a step(S4) for making the inner part of the main body with the vacuum condition, the inner temperature of the main body arrives to about 98 to 100 dec.C; a step(S5) for supplying the steam to the inner part until the inner temperature of the main body is about 102°C to 105 dec.C and the inner pressure arrives in to 0.5kg /cm^2; and a step(S6) for maintaining to a fixed temperature static pressure state until the inner part of the main body temperature is 102 to 105 deg.C and the inner pressure arrives in to 0.5kg /cm^2.

Description

Sterilizing mushroom culture medium {Method and apparatus for sterilizing mushroom culture ground}

The present invention relates to a sterilizer and a sterilization method in which a medium used for cultivating a crop, such as a mushroom, is sterilized collectively using steam, and the sterilization operation is quick and efficient by making a vacuum inside the main body before steam supply. It relates to a mushroom culture medium sterilizer and sterilization method to be made.

The medium is a generic term for a culture medium containing nutrients necessary for cultivation in order to culture mushroom spawn and the like and a culture vessel containing the culture medium. In general, as a medium material, sawdust, cotton or rice straw is used, and in order to prepare a medium, the medium material is pulverized, mixed with an appropriate amount of water, and then sterilized. This is because various bacteria can be grown because the medium is inoculated with the target bacteria in a state where the medium is not completely sterilized, and sterilization must be accompanied to preserve the medium.

Therefore, in order to prevent the crop from being infected by various germs, it is necessary to control the water and sterilize the medium materials such as sawdust, cotton and rice straw. In general, the sterilization method is performed by injecting the medium into the sealed body and then pressurizing the hot steam into the medium container.

Hereinafter, the conventional mushroom cultivation medium sterilizer and its sterilization method will be described in detail with reference to the accompanying drawings.

As shown in Figures 1 to 3, the conventional mushroom cultivation medium sterilizer 10 is composed of a main body 11 of heat insulation having a sealed door 12 to the front, rear.

One side of the main body 11 is connected to the steam supply pipe 13 to supply high-temperature steam for sterilizing the medium 20, the other side to discharge the steam supplied into the main body 11 to the outside Steam exhaust pipe 14 is connected.

In addition, the inclined plate 16 is hinged at the bottom of the main body 11 adjacent to the front and rear airtight doors 12 so that the transport vehicle 22 loaded with the discharge basket 21 containing the medium 20 can be easily entered. Combined. The inclined plate 16 is ready to be used when the airtight door 12 is opened while waiting in the folded state.

In addition, a guide rail 17 for guiding the bottom roller 23 of the transport vehicle 22 is installed between the inclined plate 16 and the whole light bulb reaching the bottom of the sterilizer 10. In the drawing, reference numeral 13a denotes a valve for adjusting the steam supply amount, 14a denotes a valve for adjusting the steam exhaust amount, 18 denotes a pressure sensor, and 19 denotes a temperature sensor.

Looking at the method for sterilizing the medium using the conventional mushroom culture medium sterilizer as follows.

First, in the state in which the airtight plate 16 is opened and the inclined plate 16 is opened, the sterilizer 10 is formed by using the lower rollers 23 for the carriers 22 on which the discharge baskets 21 containing the medium 20 are stacked. ) Into the inside one by one, and closes the sealed door 12 to seal the inside of the sterilizer 10.

Then start the steam boiler. At this time, the operating pressure of the steam boiler is 4.7kg / ㎠, the valve 14a of the steam exhaust pipe is opened more than 50%. Accordingly, the steam is supplied into the main body 11 through the steam supply pipe 13, and the supplied steam is continuously discharged through the steam exhaust pipe 14, since the amount of steam supplied is greater than the amount of steam discharged. In the main body 11, the temperature is gradually raised while a constant steam pressure is formed. This process continues until the internal temperature of the main body 11 reaches about 102 ° C to 105 ° C. The temperature rise time of these media takes 2 to 3 hours. This time may vary depending on the number of media 20 or the amount of media material introduced into the sterilizer 10.

When the internal temperature of the main body 11 is raised to the above temperature, only 40% to 49% of the steam exhaust pipe 14 is opened and the temperature is maintained for 30 minutes to 90 minutes so that heat exchange is sufficiently performed to the inside of the medium 20. Preheat.

Then, only 20% to 39% of the exhaust valve 14a is opened to gradually increase the temperature and pressure inside the main body 11. When the internal temperature of the main body 11 reaches 121 ° C., the steam pressure becomes 1.2 kg / cm 2, while sterilizing the medium 20 while maintaining this state for 30 to 60 minutes.

After the sterilization of the medium 20, the operation of the steam boiler is stopped and the steam supply pipe 13 is closed, and at the same time, the steam exhaust pipe 14 is opened to gradually drop the temperature and pressure inside the main body 11. When the internal temperature of the main body 11 reaches 98 ° C. or less and the pressure reaches 0 kg / cm 2, the closed doors 11 and 12 are opened, and the internal temperature of the main body 11 is about 60 ° C. to 70 ° C. at which the worker can work. When the temperature reaches to ℃, the carriers 22 containing the medium 20 is withdrawn from the main body 11 to the cooling chamber in turn to undergo a separate cooling process until the temperature of the medium 20 drops to 15 ℃ to 20 ℃.

This conventional mushroom culture medium sterilizer has the following problems.

First, since the high temperature steam must be continuously supplied for a long time ranging from 2 hours to 3 hours until the internal temperature of the main body reaches about 102 ° C to 105 ° C, it consumes enormous energy and takes a long time. There is. This is because the medium inside the body is heated with the lid closed in the medium container, so a long time is required for the temperature to rise up to the inside of the medium.

Second, when the medium is exposed to high temperature over a long period of time as described above, it leads to a problem that the medium is deprived of the moisture to obtain an excellent medium maintaining the correct amount of moisture.

Third, the conventional mushroom cultivation medium sterilizer has a method in which steam is supplied to one side and exhausted to the other side in order to increase the internal temperature of the main body, so that steam is not uniformly supplied to every corner of the main body, thereby greatly reducing the heating efficiency. There is a problem.

In other words, if the steam is supplied to one side and the bet is discharged to the other side in a state in which a plurality of media are stacked in the main body, steam is not uniformly supplied to every corner of the main body while a specific air flow is formed inside the main body. Rather, in some sections, the so-called air pocket layer is formed in which the existing cold air does not escape to the outside and remains constrained, resulting in uneven internal temperature distribution of the main body.

Fourth, when the internal temperature of the main body is less than 98 ℃ and the pressure is 0kg / ㎠ to open the closed door and go through a separate cooling process until the temperature of the medium drops to 15 ℃ to 20 ℃, this time inside the body Since the temperature is a high temperature of about 98 ℃ is a problem that requires a long time and a large cooling energy to cool the medium to this temperature. In addition, since the medium is exposed to high temperatures for a long time, an excellent medium cannot be obtained.

Fifth, the media emits various gases in the process of sterilization, and these gases are not discharged from the inside of the media in the exhaust process and remain inside, which adversely affects the media to be sterilized.

On the other hand, in order to solve this problem, a number of steam supply pipes and steam exhaust pipes are connected to various parts of the main body, and methods of sequentially supplying and discharging steam have been studied. This low and slow speed still fails to solve the problem.

The present invention has been made in consideration of the above-described conventional problems, by allowing steam to be evenly delivered to the inside of the medium, the preheating efficiency of the medium is greatly improved and the sterilization operation is made quickly, as well as various gases generated in the sterilization process. It is an object of the present invention to provide a mushroom cultivation medium sterilizer and a sterilization method which are all discharged to the outside of the sterilizer.

In order to achieve the above object, the mushroom cultivation medium sterilizer according to the present invention, a heat insulation body having a sealed door, a steam generator for supplying high temperature steam into the body, and is connected to the other side of the body into the body It characterized in that it comprises a steam exhaust pipe for discharging the supplied steam to the outside, and a vacuum pump installed in the steam exhaust pipe to make the inside of the main body before the steam supply.

In addition, the mushroom culture medium sterilization method according to the present invention comprises the steps of closing the inside of the body by closing the sealed door and the medium into the body; Discharging all the air in the main body by using a vacuum pump to make the main body in a vacuum state; Stopping the operation of the vacuum pump, closing the steam exhaust pipe, and then operating steam generator to supply steam into the main body; When the internal temperature of the main body reaches about 98 ° C. to 100 ° C., stopping the operation of the steam generator and discharging all of the steam inside the main body by using a vacuum pump to make the main body inside a vacuum state; With the steam pump stopped and the steam exhaust pipe opened, the steam generator was operated until the internal temperature of the main body reached about 102 ℃ to 105 ℃ and the internal pressure reached 0.5kg / ㎠. step; Maintaining the constant temperature constant pressure for a predetermined time when the internal temperature of the main body reaches 102 ° C to 105 ° C and the internal pressure reaches 0.5kg / cm 2; Pressurizing and supplying steam into the main body by operating the steam generator until the internal temperature of the main body reaches 121 ° C. and the internal pressure reaches 1.2 kg / cm 2 while the steam exhaust pipe is opened; Performing a sterilization treatment while maintaining a constant temperature for a predetermined time when the internal temperature of the main body reaches 121 ° C. and the internal pressure reaches 1.2 kg / cm 2; Stopping the operation of the steam generator and discharging steam inside the main body through the steam exhaust pipe; And opening the closed door and withdrawing the sterilized medium from the inside of the main body.

And mushroom culture medium sterilization method according to the present invention comprises the steps of sealing the inside of the body by inserting the medium into the body and closing the closed door; Discharging all the air in the main body by using a vacuum pump to make the main body in a vacuum state; Stopping the operation of the vacuum pump, closing the steam exhaust pipe, and then operating steam generator to supply steam into the main body; When the internal temperature of the main body reaches about 98 ° C. to 100 ° C., stopping the operation of the steam generator and discharging all of the steam inside the main body by using a vacuum pump to make the main body inside a vacuum state; With the steam pump stopped and the steam exhaust pipe opened, the steam generator was operated until the internal temperature of the main body reached about 102 ℃ to 105 ℃ and the internal pressure reached 0.5kg / ㎠. step; Performing a sterilization treatment while maintaining the constant temperature and constant pressure for a predetermined time when the internal temperature of the main body reaches 102 ° C to 105 ° C and the internal pressure reaches 0.5kg / cm 2; Stopping the operation of the steam generator and discharging steam inside the main body through the steam exhaust pipe; And opening the closed door and withdrawing the sterilized medium from the inside of the main body.

Mushroom culture medium sterilizer and sterilization method according to the present invention configured as described above to make the inside of the body in a vacuum state to remove all the cold air in the medium in advance and then supply the steam in the medium, due to the pressure difference in the medium Steam is evenly delivered to every corner of the inside of the body and there is an effect that the temperature rise of the medium is made quickly.

In addition, the present invention is to put the clean air after the end of the sterilization treatment to quickly drop the temperature of the medium and at the same time to remove the harmful gas generated from the medium during sterilization treatment, or aged after the end of the sterilization treatment By going through the steps there is an effect that can provide a good medium.

The features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

DETAILED DESCRIPTION Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. Like reference numerals refer to like elements, and only different parts will be mainly described so as not to overlap for clarity.

As shown in FIG. 4, the mushroom cultivation medium sterilizer 100 according to the present invention includes a main body 110 of heat insulation installed with a sealed door 112 so that the input and withdrawal of the medium 20 is made easily and quickly.

Steam is supplied to the inside of the main body 110. To this end, a steam generator 120 for supplying steam to the inside of the main body 110 is installed outside or inside the main body 110.

As shown in FIG. 5, the steam generator 120 may include a boiler installed outside the main body 110 and a steam supply pipe 121 for communicating one side of the boiler and the main body 111. As shown in FIG. 6, the steam generator 120 may include a water tank 123 installed in the lower side of the main body 110 and a heater 124 installed in the water tank 123.

On the other hand, the other side of the main body 110 is connected to the steam exhaust pipe 130 for discharging the steam supplied to the inside of the main body 110 to the outside.

In addition, the inclined plate 116 is hinged to the bottom of the main body 110 adjacent to the front and rear sealed doors 112 so as to easily enter the transport vehicle 22 loaded with the discharge basket containing the medium 20. The inclined plate 116 is in a folded state and is ready to be used when the airtight door 112 is opened. In addition, a guide rail 117 for guiding the bottom roller 23 of the transport vehicle 22 is installed between the inclined plate 116 and the light bulb reaching the bottom of the main body 110.

Therefore, when the steam generator 120 is installed inside the main body 100, the water tank 123 should be located under the bottom of the main body 110 on which the transport vehicle 22 is placed. Of course, the through-hole (not shown) should be formed so that the steam generated from the steam generator 120 flows into the bottom upper side of the main body 110.

According to the present invention, the steam exhaust pipe 130 is further provided with a vacuum pump 140 for making the inside of the main body 110 in a vacuum state before the steam supply.

The clean air supply pipe 150 may be further connected to one side of the steam supply pipe 121 or the main body 110. The clean air supply pipe 150 includes a filter 152 and supplies clean air that has passed through the filter 152 into the main body 110 in a vacuum state after the sterilization of the medium 20 is completed.

Reference numeral 121 in the figure is a valve for adjusting the steam supply amount, 131 is a valve for adjusting the steam exhaust amount, 151 is a valve for adjusting the clean air supply amount, 160 is a pressure sensor, 170 is a temperature sensor.

The medium 20 inside the main body 110 through the sterilizer 100 configured as described above is sterilized by the following method.

As shown in Figure 6 to Figure 13, sterilization of the medium according to the present invention may be made at a high pressure of more than 1.0kg / ㎠ based on or may be made at a normal pressure of less than.

1. Autoclaving

<Section A>

6 and 7, first, the medium 20 is introduced into the main body 110 and the airtight door 112 is closed to seal the inside of the main body 110. (S1)

When the inside of the main body 110 is sealed, the vacuum pump 140 is operated so that the air inside the main body 110 is discharged through the steam exhaust pipe 130 so that the inside of the main body 110 is in a vacuum state (S2).

On the other hand, because the lid (not shown) blocking the medium container is made of a porous material suitable for mushroom cultivation, the cold air inside the medium 20 in the process of discharging the air inside the body 110, the steam exhaust pipe 130 Is discharged completely through.

As such, when all the air inside the main body 110 is discharged through the vacuum pump 140, even if a plurality of mediums 20 are stacked in the main body 110, the main body 110 in some sections. ) The cold air inside does not escape to the outside and does not form a so-called air pocket layer that remains constrained.

When all the air in the main body 110 is discharged and the inside of the main body 110 becomes a vacuum state, the operation of the vacuum pump 140 is stopped, the steam exhaust pipe 130 is closed, and the steam generator is operated to operate the main body 110. Supply steam to inside (S3)

When the steam supply to the inside of the main body 110 is made in a vacuum state as described above, an air pocket layer is formed inside the main body 110, even if a plurality of mediums 20 are stacked in the main body 110. Steam can be supplied evenly and quickly to every corner of the sterilizer 100 without making it possible. In addition, since the steam can be quickly supplied to every inner corner of the medium by the vacuum pressure, the temperature inside the medium 20 is quickly increased, and the heating efficiency for the sterilizer 100 and the medium 20 is greatly improved.

When the steam supply to the inside of the main body 110 is completed, the steam supplied to the inside of the main body 110 is discharged through the steam exhaust pipe 130 by using the vacuum pump 140 while the operation of the steam generator is stopped. The inside of the main body 110 is made vacuum again. (S4) In this case, since the hot steam is completely discharged, the temperature inside the main body 110 is slightly reduced.

As such, the process of making the inside of the main body 110 in a vacuum state and then supplying steam and discharging again to make the vacuum state is repeated at least one or more times as shown in the drawing, so that the inside of the main body 110 and the medium temperature rise more quickly. It is desirable to.

<Section B>

When the above process is completed, the operation of the steam generator in the state in which the operation of the vacuum pump 140 is stopped and only 5% to 10% of the steam exhaust pipe 130 is opened, so that the temperature inside the main body 110 is about 102 ° C. 105 ° C, steam is continuously supplied into the main body 110 until the internal pressure reaches 0.5kg / cm 2.

In the present invention, the time until the temperature inside the main body 110 reaches about 102 ° C. to 105 ° C. and the internal pressure reaches 0.5 kg / cm 2 is only about 30 minutes. Therefore, it is not necessary to continuously supply a high temperature steam for a long time from 2 hours to 3 hours in order to reach the temperature as in the prior art can greatly reduce the consumption of enormous energy and working time. In addition, since the medium 20 is not exposed to high temperature for a long time, the medium 20 can hold sufficient moisture, thereby producing a high quality medium 20.

<Section C>

When the internal temperature of the main body 110 reaches 102 ° C to 105 ° C and the internal pressure reaches 0.5kg / cm 2, this state is maintained for a certain time. (S6)

The holding time is suitable for 5 to 10 minutes and the steam supply is in a state of being maintained. This step is to wait to reach the temperature to the inside of the medium, it is already preheated to the inside of the medium sufficiently in the previous step, it is possible to finish the preheating in only 5 to 10 minutes. Therefore, the conventional preheating process, which takes 60 to 90 minutes, can be completed in a short time, and the medium 20 is not exposed to high temperature for a long time, so that the medium 20 can have sufficient moisture. The medium 20 can be produced.

<Section D>

Thereafter, the steam exhaust pipe 130 is pressurized to supply steam to the inside of the main body 110 while only 5% to 10% are opened. (S7) As a result, the internal pressure of the main body 110 gradually decreases due to the reduced amount of steam exhaust. While rising, the temperature inside the body 110 is also gradually increased as the pressure increases. This process continues until the temperature inside the body 110 is 121 ° C. and the pressure reaches 1.2 kg / cm 2.

<Section E>

When the above process is completed, sterilization is performed while maintaining this state for 30 to 60 minutes. (S8)

<F section>

When the sterilization process is completed under the above conditions, the operation of the steam generator 120 is stopped and the steam exhaust pipe until the temperature inside the main body 110 becomes 98 ° C. or lower and the internal pressure of the main body 110 becomes 0 kg / cm 2. Open the 130 to discharge the steam. (S9)

When the inside of the body 110 reaches the temperature and the pressure, the sealed door 112 is opened and the sterilized medium is safely drawn out from the inside of the body 110 (S10).

Then, when the internal temperature of the discharged medium reaches the temperature at which the worker can work, 60 ° C. to 70 ° C., the carriers 22 containing the medium 20 are drawn out from the main body 110 to the cooling chamber in order. If the withdrawn medium is cooled (S11) from 15 ° C to 20 ° C in a separate cooling device (not shown), the sterilization process of the medium is completed.

2. Low pressure sterilization

As shown in Figure 8 and Figure 9, low pressure sterilization section A and B of the autoclaving described above proceeds in the same way.

<Section E>

The internal temperature of the body 110 in the state completed until the section B is 105 ℃ and the internal pressure is 0.5kg / ㎠, while maintaining this state for 4 to 6 hours to perform the sterilization treatment (S8a).

<F section>

When the sterilization process is completed under the above conditions, the operation of the steam generator 120 is stopped and the steam exhaust pipe (the internal pressure of the body 110 becomes 98 ° C. or less and the internal pressure of the body 110 becomes 0 kg / cm 2). Open steam 130 to discharge steam. (S9)

On the other hand, as another embodiment of the present invention, as shown in Figure 10, during the autoclaving and low pressure sterilization through the step (S9) of discharging the steam in the body 110, the temperature inside the body 110 is 98 ℃ When the pressure inside the main body 110 becomes 0 kg / cm 2 or less, the operation of the steam generator 120 is stopped and the steam remaining in the main body 110 is discharged by using the vacuum pump 140. 110 may be made into a vacuum state (S12), and the step (S13) of supplying the clean air filtered through the filter 152 into the main body 110 in a vacuum state.

Since the clean air is supplied into the main body 110 in a vacuum state, the clean air is instantaneously supplied to every corner of the main body 110 without forming an air pocket layer inside the main body 110. The clean air is suitable for cold air at room temperature, which is a proper temperature for mushroom cultivation.

By going through such a process, the temperature inside the main body 110 can be set to 50 ° C. to 70 ° C. or less within a short time. Therefore, it is possible to greatly reduce the energy compared to the conventional long time while using a separate cooling device, it is also possible to shorten the working time. In addition, all the harmful gases generated from the medium 20 in the sterilization process is quickly discharged to the outside and clean air is supplied to the inside of the medium 20.

On the other hand, after the supply of clean air is completed, all of the clean air inside the main body 110 is discharged again by using the vacuum pump 140 to make the inside of the main body 110 in a vacuum state and inside the main body 110 in a vacuum state. When the process of supplying the clean air filtered through the filter 152 is repeated at least once or more, the medium cooling process may be performed more quickly. When the medium is cooled by the above process, all of the clean air inside the body 110 is discharged (S14).

Then, the transport door 22 containing the medium 20, the sterilization is completed by opening the closed door 112 in order from the inside of the main body 110 to complete the medium sterilization operation (S15).

Meanwhile, as another embodiment of the present invention, as shown in FIGS. 11 and 12, only when sterilization is performed at a high pressure, steam is discharged inside the main body 110 through the steam exhaust pipe 140 (S9). After the step, the steam generator 120 is operated to maintain a pressure of 0.5 kg / cm 2 or less at a temperature of 105 ° C. or less for a predetermined time to mature the medium in which sterilization is completed (S17). You can also go further. After the aging step (S17) as described above stops the operation of the steam generator 120 and discharges the steam in the body 110 through the steam exhaust pipe 130 (S18).

By further passing the step of aging the medium (S17) as described above, it is possible to obtain a better medium. The aging time is shorter than the sterilization time. When the steam discharge is completed (S18), withdraw the medium 20 from the main body 110 (S19) and completes the work through a separate cooling process.

In this case, it is preferable to further go through the step (S16) of making the inside of the main body 110 in a vacuum state using the vacuum pump 140 before the step (S17) of aging the complete sterilization medium. This is to completely remove the harmful gas generated in the process of sterilizing the medium 20 from the inside of the main body 110 so as not to affect the next medium ripening step (S17).

On the other hand, as shown in Figure 13, after the step of aging the medium 20 (S17) to stop the operation of the steam generator 120 and then vacuum the inside of the body 110 using a vacuum pump 140 Make a state (S20), supply the clean air filtered through the filter inside the main body 110 in a vacuum (S21), and then discharge the clean air inside the main body 110 through the steam exhaust pipe 140 (S22) You can also make the process work better.

As such, if the inside of the main body 110 is vacuumed after the medium maturation step (S17), and the clean air is immediately introduced, the harmful gases generated from the medium 20 during the maturing process can be quickly discharged to the outside. In addition, by lowering the temperature inside the main body 110 within a short time, the cooling of the medium 20 is performed quickly, and the cooling energy required for this can be greatly reduced. These operations may be repeated at least once.

On the other hand, if the sterilization is performed at room temperature, it is not necessary to go through the aging step as described above. This is because sterilization at room temperature is carried out under the same conditions as the aging step, so that aging is performed simultaneously with sterilization.

While the invention has been shown and described with respect to specific embodiments thereof, it will be understood that the invention can be variously modified and modified without departing from the spirit or scope of the invention as set forth in the following claims. It should be included in the scope of the invention.

1 is a view showing the configuration of a conventional mushroom culture medium sterilizer.

Figure 2 is a graph showing a conventional mushroom culture medium sterilization process.

Figure 3 is a flow chart showing a conventional mushroom culture medium sterilization method.

4 is a view showing a mushroom cultivation medium sterilizer according to the present invention.

5 is a view showing another embodiment of the mushroom culture medium sterilizer according to the present invention.

Figure 6 is a graph showing the high pressure sterilization process for mushroom culture medium according to the present invention.

7 is a flow chart showing a high pressure sterilization method for mushroom culture medium according to FIG.

Figure 8 is a graph showing the mushroom culture medium atmospheric sterilization process according to the present invention.

9 is a flow chart showing a mushroom culture medium atmospheric sterilization method according to FIG.

10 is a flow chart showing another embodiment of the mushroom cultivation medium sterilization method according to FIG.

Figure 11 is a graph showing the sterilization process for mushroom culture medium according to another embodiment of the present invention.

12 is a flow chart showing a method for sterilizing mushroom culture medium according to FIG.

Figure 13 is a flow chart showing another embodiment of the mushroom cultivation medium sterilization method according to FIG.

<Description of the symbols for the main parts of the drawings>

100 ... sterilizer 110 ... body

112 ... Airtight door 120 ... Steam generator

121 ... Steam supply pipe 122,131,151 ... Valve

123 ... water tank 124 ... heater

130 steam exhaust pipe 140 vacuum pump

150 ... Clean Air Supply Line 152 ... Filter

Claims (14)

An insulated body having a closed door; A steam generator for supplying hot steam into the main body; A steam exhaust pipe connected to the other side of the main body to discharge steam supplied into the main body to the outside; And The mushroom cultivation medium sterilizer, characterized in that it comprises a vacuum pump installed in the steam exhaust pipe to make the interior of the body prior to steam supply. The method of claim 1, The steam generator is a mushroom cultivation medium sterilizer, characterized in that consisting of a steam supply pipe for communicating the boiler and one side of the main body and the boiler installed outside the main body. The method of claim 1, The steam generator Mushroom culture medium sterilizer, characterized in that consisting of a water tank installed in the inner lower portion of the main body and a heater installed in the water tank. The method of claim 1, The mushroom cultivation medium sterilizer, characterized in that the main body is further connected to a clean air supply pipe for supplying the clean air filtered through the filter. A heat insulation body having a sealed door, a steam generator for supplying high temperature steam to the inside of the body, a steam exhaust pipe connected to the other side of the body to discharge steam supplied into the body to the outside, and the steam exhaust pipe In the mushroom cultivation medium sterilization method using a mushroom cultivation medium sterilizer is installed is installed a vacuum pump to make the inside of the main body before the steam supply, Inserting the medium into the main body and closing the closed door to seal the inside of the main body; Discharging all the air in the main body by using a vacuum pump to make the main body in a vacuum state; Stopping the operation of the vacuum pump, closing the steam exhaust pipe, and then operating steam generator to supply steam into the main body; When the internal temperature of the main body reaches about 98 ° C. to 100 ° C., stopping the operation of the steam generator and discharging all of the steam inside the main body by using a vacuum pump to make the main body inside a vacuum state; With the steam pump stopped and the steam exhaust pipe opened, the steam generator was operated until the internal temperature of the main body reached about 102 ℃ to 105 ℃ and the internal pressure reached 0.5kg / ㎠. step; Maintaining the constant temperature constant pressure for a predetermined time when the internal temperature of the main body reaches 102 ° C to 105 ° C and the internal pressure reaches 0.5kg / cm 2; Pressurizing and supplying steam into the main body by operating the steam generator until the internal temperature of the main body reaches 121 ° C. and the internal pressure reaches 1.2 kg / cm 2 while the steam exhaust pipe is opened; Performing a sterilization treatment while maintaining a constant temperature for a predetermined time when the internal temperature of the main body reaches 121 ° C. and the internal pressure reaches 1.2 kg / cm 2; Stopping the operation of the steam generator and discharging steam inside the main body through the steam exhaust pipe; And A method for sterilizing mushroom cultivation medium, comprising the step of opening a closed door and withdrawing sterilized medium from the inside of the body. A heat insulation body having a sealed door, a steam generator for supplying high temperature steam to the inside of the body, a steam exhaust pipe connected to the other side of the body to discharge steam supplied into the body to the outside, and the steam exhaust pipe In the mushroom cultivation medium sterilization method using a mushroom cultivation medium sterilizer is installed is installed a vacuum pump to make the inside of the main body before the steam supply, Inserting the medium into the main body and closing the closed door to seal the inside of the main body; Discharging all the air in the main body by using a vacuum pump to make the main body in a vacuum state; Stopping the operation of the vacuum pump, closing the steam exhaust pipe, and then operating steam generator to supply steam into the main body; When the internal temperature of the main body reaches about 98 ° C. to 100 ° C., stopping the operation of the steam generator and discharging all of the steam inside the main body by using a vacuum pump to make the main body inside a vacuum state; With the steam pump stopped and the steam exhaust pipe opened, the steam generator was operated until the internal temperature of the main body reached about 102 ℃ to 105 ℃ and the internal pressure reached 0.5kg / ㎠. step; Performing a sterilization treatment while maintaining the constant temperature and constant pressure for a predetermined time when the internal temperature of the main body reaches 102 ° C to 105 ° C and the internal pressure reaches 0.5kg / cm 2; Stopping the operation of the steam generator and discharging steam inside the main body through the steam exhaust pipe; And A method for sterilizing mushroom cultivation medium, comprising the step of opening a closed door and withdrawing sterilized medium from the inside of the body. The method according to claim 5 or 6, After the step of exhausting all the air in the main body using the vacuum pump to make the inside of the main body in a vacuum state, Stopping the operation of the vacuum pump and closing the steam exhaust pipe and then operating the steam generator to supply steam into the main body; Sterilizing medium for mushroom cultivation, characterized in that to repeat the step of making a vacuum at least one or more times. The method according to claim 5 or 6, After the step of opening the closed door and withdrawing the sterilized medium from the inside of the main body, the culture medium sterilization method for mushroom cultivation, characterized in that further through the step of cooling the medium using a separate cooling device. The method of claim 8, The medium is mushroom culture medium sterilization method characterized in that the cooling to 15 ℃ to 20 ℃ through the cooling device. The method according to claim 5 or 6, After stopping the operation of the steam generator and discharging the steam inside the body through the steam exhaust pipe, Making a vacuum inside the main body using a vacuum pump; Supplying clean air filtered through a filter into the main body in a vacuum state; Sterilizing medium for mushroom cultivation, characterized in that further comprising the step of discharging the clean air inside the body through a steam exhaust pipe. The method of claim 10, After supplying the filtered clean air to the inside of the main body of the vacuum state, by using a vacuum pump to discharge all the clean air inside the main body to make the interior of the vacuum state through the filter inside the main body of the vacuum state Method for sterilizing mushroom cultivation medium, characterized in that the step of re-supplying the filtered clean air at least once or more times. The method of claim 5, After stopping the operation of the steam generator and discharging the steam inside the body through the steam exhaust pipe, Aging the medium after sterilization is completed while maintaining the internal temperature at 105 ° C. and the internal pressure at 0.5 kg / cm 2 for a predetermined time; Sterilizing medium for mushroom culture, characterized in that it further comprises the step of discharging the steam inside the body through a steam exhaust pipe. The method of claim 12, Before the step of aging the complete sterilization medium, sterilizing mushroom culture medium, characterized in that it further comprises the step of making the inside of the body in a vacuum state using a vacuum pump. The method according to claim 12 or 13, After the step of maturing the sterilized medium, Stopping the operation of the steam generator and making a vacuum inside the main body using a vacuum pump; Supplying clean air filtered through a filter into the main body in a vacuum state; Sterilizing medium for mushroom cultivation, characterized in that the step of repeatedly discharging the clean air inside the body through a steam exhaust pipe at least one or more times.

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