JPS61181607A - Smoking treating method and device for wood - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for smoking wood suitable for speed drying, pest control, egg killing, and straightening wood.

[Technology background]

Wood used for houses, furniture, etc. cannot be used immediately after being felled. Wood immediately after felling contains a large amount of moisture and is sawn in that state.
When used for furniture, etc., as this moisture evaporates and the wood dries, a phenomenon commonly known as wood cracking occurs, such as warping and warping of the wood. In some cases, the beams and furniture materials became distorted or cracked.

In order to calm down this phenomenon of timber damage, houses,
It has been common practice for wood used for furniture and the like to be dried naturally over many years, and after the wood cracking phenomenon has subsided, it is used for houses and furniture after being sawn.

However, this method of drying wood using only natural drying has the disadvantage of requiring a long period of time, preferably at least 5 to 10 years. A method of drying wood has been proposed, which involves soaking the wood in high-temperature steam and slowly drawing out the moisture to dry it in a state close to natural drying, which is called steaming. has been done.

FIG. 2 shows an apparatus used in a conventional treatment method of this type.

In FIG. 2, 1 is a wood processing room, 2 is a rail for carrying wood into the processing room, 4 is a trolley, and 8 is a rail for carrying wood into the processing room.
is a combustion chamber for obtaining a heat source, 11.12.13.14
is a partition plate that partitions the wood processing chamber and the combustion chamber.

Moreover, W is wood.

The wood W is placed on the trolley 4 on the rail 2, placed in the wood processing chamber 1, the combustion chamber 8 is set on fire, hot air is sent into the wood processing chamber 1, and the wood is heated at a predetermined temperature for a predetermined period of time. , hot air is sent into the wood processing chamber 1 to dry the wood.

In addition to speed-drying the wood, these treatment methods also exterminate insects attached to or mixed in the wood, and
Since it has a certain degree of ovicidal effect on eggs, it is often used in conjunction with these insect repellent and ovicidal methods of applying chemical agents, and methods of drying in a vacuum and applying agents under pressure. has been done.

[Prior art and its drawbacks]

Conventionally, the processing chamber used in this type of processing method usually has one
Since the wood is fed into the processing chamber even as a log, the size of the processing chamber is approximately 13 m wide, 3 m wide, and 3 m high.

Therefore, it is difficult to sufficiently stir the high-temperature air and high-temperature steam in the processing chamber, and the drying, insect repellent,
It has the disadvantage that egg killing is uneven.

That is, in the upper part of the processing chamber where the high-temperature air and high-temperature steam that are sent into the processing chamber stagnate, the drying, insect-proofing, egg killing, etc. are carried out well, but in the lower part of the processing chamber, the high-temperature wind and high-temperature steam stagnate. It has the disadvantage that the drying, insect-proofing, egg-killing, etc. mentioned above cannot be carried out sufficiently.

[Purpose of the invention]

The present invention provides a method for smoking wood that can easily dry wood quickly, prevent insects, kill eggs, straighten warping, etc., using a completely different principle and using an extremely simple method compared to conventional methods of this type. The purpose of the present invention is to provide a processing method and an apparatus for the same.

[Summary of the invention]

In order to achieve the above object, the present invention provides a processing chamber filled with smoke generated by a smoke generator.
The wood is placed in the chamber for a predetermined period of time, and steam is uniformly fed into the processing chamber at predetermined time intervals, thereby allowing the wood to be smoked.

For this reason, a device for carrying out the present invention includes a wood processing chamber that can store wood as logs, a wood processing chamber that burns wood chips, etc.
A smoke generator that generates smoke, and a duct that sends the smoke generated by the smoke generator to the processing chamber.

A water vapor generator capable of generating water vapor and sending it into the processing chamber is provided, and the inside of the processing chamber is
While the chamber is filled with smoke, steam is sent into the processing chamber from the steam generator at predetermined time intervals.

[Action of the invention]

The inventor of the present application has carried out the conventional high-temperature drying method for wood, completely drying the wood evenly and quickly, preventing insects, killing eggs, and so on. While researching and devising a simple processing method that could omit the work of having to place weights evenly, I discovered that it was based on a completely different principle from conventional processing methods, but was extremely effective. The present invention has been devised.

Regarding the present invention, although it cannot be said that the knowledge thereof has necessarily been elucidated in detail, the present invention involves putting wood into a processing chamber filled with smoke generated by burning pieces of wood.

By occasionally sending water vapor into the processing chamber, the processing chamber is alternately made into a state where there is almost no oxygen and a state where there is oxygen. That is, when the processing chamber is filled with smoke, it is filled with carbon monoxide and carbon dioxide, which are the main constituents of smoke, and this is due to the fact that water vapor is pumped into it in the absence of oxygen. In some cases, it becomes a state containing oxygen. As these anoxic and oxic conditions are alternately repeated, the oxygen present inside the wood is extracted from the wood along with the moisture, causing the wood to harden. This seems to be based on the knowledge that wood is used for drying wood, preventing insects, killing eggs, and straightening warpage.

[Embodiments of the invention]

The wood smoking treatment method according to the present invention will be specifically explained based on an example.

FIG. 1 shows an outline of an apparatus for carrying out the wood smoking treatment method of the present invention.

:JS1 Figure (A) is a schematic sectional view of the device of this embodiment, and Figure CB) is a plan view thereof.

In FIG. 1, 1 is a wood processing chamber, 2 is a rail for carrying wood into the processing chamber 1, and 4 is the wheel of the trolley.

Further, 3 is a smoke generator that burns wood chips or the like to generate smoke, and 5 is a steam generator that utilizes the residual heat of the smoke generator. Stones 21 and the like are stacked and placed in the placed storage box 20, and after the stones 21 and the like are sufficiently heated, water is poured onto the stones 21 to generate steam. In the figure, 22 is a water tank.

23 is a valve, 24 is a water spout. Ru.

Further, 8a and 8b are ducts for sending the smoke generated by the smoke generator 3 into the wood processing chamber 1. In this embodiment, the ducts are used to transport the steam generated by the steam generator 5 and the smoke. Although the smoke generated by the generator 5 is sent in at the same time, in other embodiments, a duct exclusively for sending water vapor may be provided.

Reference numeral 9 denotes a processing chamber exhaust port provided to prevent smoke from gathering in the upper part of the processing chamber 1 and reducing smoking efficiency, and 10 is an exhaust fan provided at the exhaust port.

24 is a door for introducing wood chips, etc. of the smoke generator 3, and 25
is the air intake door of the smoke generator 3.

The wood smoking treatment method according to the present invention will be explained using the apparatus of this embodiment.

Logs of logs that have just been cut are stacked on the trolley, and the logs are fixedly placed in the processing chamber 1 while being stacked on the trolley. In this case, as in the present embodiment shown in FIG. The entire chamber 1 is suspended from above, and when storing wood, the processing chamber 1 is lifted up, the wood is fixedly placed inside, and then the processing chamber 1 is lowered again and the wood is placed inside the processing chamber. It may also be possible to place it fixedly on.

Once the wood has been fixedly placed inside the processing chamber in this way,
After opening the wood chip input door 14 of the smoke generator 3 and throwing in the wood chips, the wood chips are ignited.

When the fire spreads to the wood, etc., close the air intake door,
Make it easy to generate a large amount of smoke.

The generated smoke is sent into the processing chamber 1 through the ducts 8a and 8b.

In the device of this embodiment, two exits are provided from directly below the processing chamber 1 for discharging smoke from the duct, but the location of the exhaust and the number of exits are limited as in the device of this embodiment. It's not something you can do.

When smoke begins to fill the processing chamber 1, the exhaust fan 10 of the processing chamber exhaust port 9 is rotated to adjust the smoke to evenly fill the processing chamber 1.

Once the inside of the processing chamber 1 is evenly filled with smoke, the water tank 2 is removed at predetermined time intervals, for example, at intervals of 1 to 2 hours.
2 is opened, water is sprayed onto the stone 21 from the water sprinkling port 24 to generate water vapor, and the water vapor is sent from the water aeration generator 5 to the wood processing chamber 1.

At this time, the inside of the wood processing chamber 1 changes from an anoxic state filled with smoke to an oxic state containing water vapor and the like.

However, since smoke continues to be generated from the smoke generator 3 while steam is being sent into the processing chamber 1, the processing chamber 1 will eventually be filled with the smoke again. becomes.

In this way, the wood chips were burned for about 72 hours,
This continues to produce smoke to complete the wood smoking process.

The method for smoking wood according to the present invention not only involves smoking wood by filling it with smoke and steam alternately as described above, but also by combining this method with a conventional high-temperature drying method for wood, etc. It can also be used in combination with

This is characterized by the fact that the wood is smoked by filling the wood processing chamber alternately with smoke and steam, and placing the interior of the processing chamber in an aerobic state and an anoxic state. However, by combining alternately filling the processing chamber 1 with smoke and steam with the conventional high-temperature wood drying method, the effectiveness of the conventional wood drying method can be dramatically improved. was completed.

That is, in addition to filling the processing chamber 1 alternately with the smoke and steam, for example, if the processing chamber 1 is heated with a structure that makes it difficult for heat to escape, the internal temperature of the processing chamber will rise to 150°C.
The temperature is around 400℃, but since the processing chamber is filled with smoke, conventional wood drying methods would cause the wood to burst into flames.
The treated wood will not catch fire.

Therefore, the drying process can be performed at a much higher temperature than conventional wood drying methods, resulting in a dramatic improvement in the wood drying process.

When used in conjunction with this conventional high-temperature drying method for wood, the processing ability of wood obtained by conventional drying methods, such as insect repellent, egg killing, and warp correction, is dramatically improved.

〔Effect of the invention〕

According to the present invention, there are five extremely excellent effects regarding the processing of wood.

First, in the past, it was necessary to let the cut logs rest for about 10 years to prevent the wood from warping.
According to the present invention, this period can be significantly shortened.

Second, it is possible to exterminate insects attached to logs, and also kill insect eggs laid inside the logs.

Thirdly, the wood that has been subjected to the smoking treatment according to the present invention does not warp even after sawing, and even wood that has been distorted in nature can be transformed into undistorted wood by performing the smoking treatment. This has an excellent effect. In other words, by applying the smoking treatment of the present invention, even wood that has hitherto been unusable for houses and furniture, especially young trees and thinned wood, can be straightened and used for houses, furniture, etc. This has the effect of significantly expanding the range of wood that can be used as warp correction materials and warp improvement materials.

This expands the range of uses for young trees and thinned wood, increasing the marketability of these young trees and thinned wood.

In addition, since the present invention involves smoking wood, the wood after treatment becomes glossy, and wood that would otherwise be too soft to be used can also be subjected to the smoking treatment according to the present invention. As a result, the wood itself becomes hard and hard, and can be used for things that require such hard wood, making it possible to expand the uses of the wood itself.

In addition, there is a method of injecting plastic into wood as a hardening process for wood, but in this case, the industry has traditionally held that plastic cannot be injected into so-called Nara wood, which is made of hardwood wood, after it has been dried. However, after the smoking treatment according to the present invention, there is an effect that even such materials can be easily injected into plastic.

Fourth, in conventional wood drying treatments, it is said that it is better to dry the wood after it has been cut for some time. In the treatment method according to the present invention, smoking treatment of freshly cut wood yields significantly better results than waiting for some time after cutting the wood.

Fifthly, after the smoking treatment according to the present invention, does it not only have an insect repellent effect but also a sterilizing effect?

When the smoked wood according to the present invention is used as material for mushrooms such as shiitake mushrooms, it has the effect that the bacteria can penetrate into the wood material, that is, the so-called "bacterial surroundings" are good. .

Furthermore, the method for smoking wood according to the present invention not only involves smoking wood by filling it with smoke and steam alternately as described above, but also using the conventional high-temperature drying method for wood. In that case, the wood processing chamber is alternately filled with smoke and steam to create an oxic and anoxic state in the wood processing chamber. This has the effect of dramatically improving the effectiveness of the drying method.

That is, according to the conventional drying method and the present invention, in addition to filling the processing chamber alternately with the smoke and steam,
The temperature inside the processing chamber can be easily maintained at a temperature of about 150-400℃, and even at such temperatures, where conventional wood drying methods would cause the wood to burst into flames, the temperature inside the processing chamber remains Because it is filled with smoke, the treated wood will not catch fire.

Therefore, the drying process can be performed at a much higher temperature than in conventional wood drying methods, resulting in a dramatic improvement in wood drying performance.

[Brief explanation of drawings]

FIG. 1 (A) is a schematic cross-sectional view of the device of this embodiment, and FIG. 1 (B)
is the same plan view, and FIG. 2 is a schematic diagram of a conventional wood drying processing apparatus. 1; Wood processing room, 2; Rail, 3; Smoke generator, 4; Trolley, 5; Duct, 8; Combustion chamber, 9; Processing chamber exhaust 0.10; Exhaust fan, 11.
12.13.14; Partition plate, 20: Storage surface, 21; Stone,
22; water tank, 23; valve, 24; water spout, 24;
Loading door, 25; Air intake layer, W; Wood Fig. 2

Claims (4)

[Claims] (1) A method of smoking wood by placing the wood in a processing chamber filled with smoke for a predetermined period of time and sending steam into the processing chamber at predetermined time intervals. (2) A wood processing chamber for storing wood, a smoke generator connected to this wood processing chamber for burning wood chips, etc. to generate smoke, and a smoke generator for generating steam and sending it into the processing chamber. A wood smoking processing apparatus characterized in that the processing chamber is filled with the smoke, and the steam is sent from the steam generation device into the processing chamber. (3) In addition to filling the processing chamber alternately with the smoke and steam, the processing chamber is heated to a temperature of 150 to 400
The method for smoking wood according to claim 1, characterized in that the wood is smoked at a temperature of about °C. (4) By alternately creating an anoxic state filled with smoke and an oxic state containing water vapor in the processing chamber,
How to produce hard modified materials