JP3366964B2 - How to grow mushrooms - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cultivating mushrooms, and more particularly to a method for efficiently cultivating edible mushrooms. [0002] Conventionally, edible mushrooms such as shiitake mushrooms are obtained by cutting a soybean tree such as oak or oak to a predetermined length, inoculating a seed fungus, and storing the fungus in a high-humidity environment so that the hyphae are sufficiently propagated. After that, the temperature of the environment is lowered temporarily to produce mushrooms. However, in such a conventional cultivation method, the mycelium does not sufficiently propagate unless the leaves are laid for about one year after felling, and the mycelia do not grow sufficiently unless the logs are covered with skin. It does not happen. In addition, the firewood that is suitable for breeding shiitake mushrooms is limited to tree species such as oak and oak, as well as chestnuts and shii. There was also a problem that it was difficult to collect. [0003] Therefore, as a result of various studies on the cultivation of mushrooms, the present inventor has found that when a specific modification treatment is applied to wood, on which a mycelium has conventionally hardly propagated, the mycelium easily grows. It has been found that the present invention has been accomplished. That is, an object of the present invention is to provide a method for efficiently cultivating edible mushrooms using wood which has heretofore been considered unusable as a sodwood. [0004] A method for cultivating mushrooms according to the present invention is a method for cultivating mushrooms, comprising: a sealable wood accommodating chamber; a combustion gas generating furnace having a combustion air introduction passage; Wood comprising a combustion gas supply passage leading to the upper part of the chamber, a gas discharge passage leading from the bottom of the wood storage chamber to the chimney, and a gas recovery passage leading to the combustion air introduction passage from the bottom of the wood storage chamber. In the reforming apparatus, the modified wood is obtained by contacting the wood for wood with the circulating combustion gas, and then the modified wood is inoculated with a seed fungus and stored in a culture environment. It is assumed that. [0005] In the method for cultivating mushrooms according to the present invention, modified sandalwood is used in addition to conventionally used oaks and oaks, as well as broadleaf trees and cedars such as cherry blossoms, which are considered unsuitable for mushroom cultivation. And conifers such as cypress and the like, and the tree species is not particularly limited. In the past, it was considered that trees cut in the autumn were good. However, in the present invention, the time of cutting is not limited, and the trees can be used for the production of modified firewood immediately after cutting. Further, it has been conventionally considered that the log cannot be used unless it is a log with a skin. However, in the present invention, the log is not limited to the log, but may be a sawn timber, and the log may not be provided. [0006] The modified soywood according to the present invention comprises a wood accommodating chamber capable of sealing wood of any tree type and shape and properties as described above, and a combustion gas generating furnace having a combustion air introduction passage. A combustion gas supply passage from the upper part of the furnace to the upper part of the wood storage chamber, a gas discharge path from the bottom of the wood storage chamber to the chimney, and a combustion air introduction path from the bottom of the wood storage chamber. It is obtained by reforming using a wood reforming apparatus having a gas recovery path.
It has a structure as shown in FIG. In FIG. 1, reference numeral 1 denotes a wood storage chamber in which wood to be reformed can be loaded and hermetically sealed, and 2 denotes a combustion gas generating furnace 2 provided adjacent to the wood storage chamber 1. Their upper parts are communicated by the combustion gas supply path 3. The combustion gas supply path 3 is provided with a gate 31 for adjusting the gas flow rate so that the gas flow in the wood storage chamber 1 can be averaged. At the bottom of the combustion gas generating furnace 2, there is formed a fire chamber 21 in which fuel such as waste wood can be injected and burned, and a combustion air introduction path 4 is connected thereto. At the open end of the combustion air introduction passage 4, there is provided a damper 41 capable of restricting the intake amount of outside air. [0008] A plurality of gas recovery passages 5 are connected to a plurality of positions at the bottom of the wood accommodating chamber 1 and communicate with the combustion air introduction passages 4 respectively. Each of the gas recovery paths 5 is provided with a damper 51. A gas discharge path 6 is connected to the bottom of the wood storage chamber 1 at a position farthest from the combustion gas supply path 3, and communicates with a chimney 7. A damper 61 for adjusting the amount of gas discharged to the chimney 7 is provided in the middle of the gas discharge path 6. A steam generator 8 formed of an iron grid is mounted in the middle of the wall of the combustion gas generating furnace 2, and a tap water supply port 81 from outside is provided immediately above the steam generator 8. This prevents the hardening and drying of the sides of the wood, so that the sides and the heart are dried at the same speed, and as a result, the whole wood is uniformly and quickly dried and reformed. There is. In such a wood reforming apparatus, when fuel such as wood chips is burned in a combustion gas generating furnace, combustion gas containing smoke flows into the upper part of the wood storage chamber through the combustion gas supply passage. The high-temperature combustion gas passes between the timber loaded in the wood storage room, flows downward while heating and drying the wood, flows out from the bottom of the wood storage room, and a part of it is released from the chimney through the gas exhaust passage. Is done. On the other hand, most of the gas inside the wood storage chamber is led from the bottom of the wood storage chamber to the combustion air introduction path by the gas recovery path, mixed with fresh combustion air, returned to the combustion gas generation furnace, and returned to the combustion gas generation furnace again. It circulates from the generator to the wood storage chamber, where the wood is loaded and heated and dried in contact with the wood to reform it. The modified firewood thus obtained is inoculated with an inoculum by a conventionally known method such as, for example, drilling and then inserting a seed piece, and further stored in a high humidity environment to culture mycelia. Hyphae propagate between them and produce mushrooms efficiently. According to the method of the present invention, even if it is conventionally impossible to cultivate mushrooms, the wood can be modified by treating it with a wood modifying apparatus having a specific structure. It is a tree that can be used for cultivation of mushrooms.
Proliferation of hypha is promoted and mushrooms can be harvested in a short time. EXAMPLE A log about 8 to 14 cm in diameter immediately after felling of kunugi, cherry and cedar, and a log of about 18 to 25 cm of kunugi, which are divided into four, are loaded on a bogie. After being carried into the wood accommodating chamber 1 of the wood reforming apparatus configured as described above, the door is closed and hermetically closed, and then the fuel such as wood waste put into the combustion gas generating furnace 2 is ignited to reform the wood. Was done. During this time, the combustion gas flows from the upper part of the combustion gas generating furnace 2 into the wood accommodating chamber 1 through the respective combustion gas supply passages 3. At this time, if the damper 61 is closed, the interior of the wood accommodating chamber 1 is moved from the upper part. As the high-temperature combustion gas is filled, the air in the wood accommodating chamber 1 is sucked into the combustion gas generating furnace 2 from the plurality of gas recovery passages 5 through the combustion air introduction passages 4, and the entire interior of the wood accommodating chamber 1 is heated at a high temperature. Gas circulation continued until it was filled with gas. In this way, the air in the apparatus is removed from the combustion gas generating furnace 2.
As the atmosphere is converted into high-temperature combustion gas, the atmosphere in the wood storage chamber 1 becomes high temperature, while the oxygen concentration also decreases, and the burning rate of the fuel in the combustion gas generation furnace 2 becomes slow.
The temperature inside did not rise. Then, the damper 61 is slightly opened to allow a part of the gas in the wood accommodating chamber 1 to escape to the chimney 7 through the gas discharge path 6, and to supply fresh air in an amount corresponding to the gas discharge amount to the combustion air introduction path 4. Automatically introduced to prevent the fuel burning rate from becoming too slow. Each of the dampers 51 of the gas recovery path 5
Was adjusted so that the gas in the wood storage chamber 1 was sucked into the combustion air introduction passage 4 on average, and the temperature distribution in the wood storage chamber 1 was further averaged. Thus, 1 in the wood storage room 1
The wood treated for 3 days by being brought into contact with a low oxygen concentration atmosphere at a temperature of 00 to 300 ° C. became a modified firewood whose drying proceeded uniformly. [0016] The modified firewood thus obtained and the raw firewood not subjected to the modification treatment are inoculated with Shiitake fungi in the same manner as in a usual manner to form a firewood in a cedar forest. When we observed the state of the mushrooms while sprinkling water occasionally,
It has been found that the method of the present invention using the modified fir wood has a remarkable effect as shown in Table 1 below. [Table 1] According to the method for cultivating mushrooms of the present invention, mushrooms can be modified by a reformer having a specific structure, even if wood that has been conventionally unsuitable for cultivation of mushrooms is used. As the modified firewood suitable for cultivation is obtained, the cultivation period can be shortened, the cultivation efficiency can be increased, and not only can the planned mushroom production be possible, but also the procurement of firewood can be facilitated and economical. The effect is extremely large.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual diagram showing the configuration of a wood reforming apparatus used in the method for growing mushrooms of the present invention. [Description of Signs] 1 Wood storage room 2 Combustion gas generation furnace 21 Firebox 3 Combustion gas supply passage 31 Gate 4 Combustion air introduction passage 41 Damper 5 Gas recovery passage 51 Damper 6 Gas discharge passage 61 Damper 7 Chimney 8 Steam generator 81 Tap water supply port

Claims (1)

(1) A combustion gas generating furnace having a sealable wood accommodating chamber, a combustion air introduction passage, and a combustion gas flowing from an upper portion of the furnace to an upper portion of the wood accommodating chamber. In a wood reforming apparatus including a supply path, a gas discharge path from the bottom of the wood storage chamber to the chimney, and a gas recovery path from the bottom of the wood storage chamber to the combustion air introduction path, A method for cultivating mushrooms, comprising: obtaining a modified firewood by contacting the wood with a circulating combustion gas; inoculating the modified firewood with an inoculum; and storing it in a culture environment.