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JP2004314526A - Method for steaming, insect-repelling and preservative treatment of timber - Google Patents

Method for steaming, insect-repelling and preservative treatment of timber Download PDF

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Publication number
JP2004314526A
JP2004314526A JP2003113995A JP2003113995A JP2004314526A JP 2004314526 A JP2004314526 A JP 2004314526A JP 2003113995 A JP2003113995 A JP 2003113995A JP 2003113995 A JP2003113995 A JP 2003113995A JP 2004314526 A JP2004314526 A JP 2004314526A
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Japan
Prior art keywords
insect
temperature
drying chamber
steaming
wood
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Pending
Application number
JP2003113995A
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Japanese (ja)
Inventor
Kanako Aoki
加奈子 青木
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Individual
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Filing date
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Priority to JP2003113995A priority Critical patent/JP2004314526A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for steaming, insect-repelling and preservative treatment of timber which enables efficient steaming treatment at a prescribed temperature by spraying water from a shower and also enables the insect-repelling and preservative treatment by spraying an insect-repellent and preservative agent from the shower. <P>SOLUTION: In this method, steam from a steam boiler is jetted into a drying chamber 1 and this chamber 1 is kept at a definite temperature. When the temperature of the drying chamber 1 rises up to the definite temperature or above in the process of steaming the timber 2, drying is ended, while the temperature of the drying chamber 1 is lowered to the definite temperature or below by spraying the water into the chamber 1 from the shower 5. Moreover the insect-repellent and preservative agent is sprayed thereafter on the timber 2 from the shower 5 to perform the insect-repelling and preservative treatment. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、簡易な温度コントロールにより、所定温度で効率よく蒸煮処理することができると共に、防虫防腐剤を噴霧して防虫防腐処理を行うことができる木材の蒸煮及び防虫防腐処理方法に関する。
【0002】
【従来の技術】
従来、木材の乾燥には、蒸気ボイラー等の蒸気で木材を加熱する蒸煮処理を行う方法がある。
そのためには、芯持ち材等の被乾燥材中心部が80〜100℃程度になるまで十分加熱する必要があるが、蒸煮であるため木材表面からの乾燥蒸発が押さえられたままで材温を上げることができる。
このような公知技術として、特開2002−11705号公報がある。
【0003】
【特許文献】
前記特開2002−11705号公報は、図2に示すように、木材Aの蒸煮装置において、断熱性と防水性を有する材料で蒸煮室1’を形成すると共に、この蒸煮室1’内に蒸気ボイラ9’に結ばれたミストホース7’を引き込み、被蒸煮木材Aを前記蒸煮室1’内に搬入し、前記ミストホース7’は、この搬入した被蒸煮木材Aの周囲及び下部等に蛇行させながら配置し、このミストホース7’の織り目又は編み目から蒸気を霧状に噴出させて蒸煮を行うものである。
【0004】
このような蒸煮においては、蒸気ボイラー等の蒸気温度が120〜160℃であるため、蒸煮室の温度を120℃以下に制御するためには蒸気の供給量を制御、すなわち蒸気ボイラーをフィードバック制御しなければならず、温度コントロールが非常に困難であった。
また、乾燥した後、木材に防虫防腐処理を施すためには、防虫防腐剤を満たした防虫防腐剤液槽に木材を浸すようにしていたので、作業が複雑になり効率が悪かった。
【0005】
【発明が解決しようとする課題】
本発明は、シャワーから水を噴霧して、所定温度で効率よく蒸煮処理することができると共に、前記シャワーから防虫防腐剤を噴霧して防虫防腐処理を行うことができるようにした木材の蒸煮及び防虫防腐処理方法を提供することを目的とする。
【0006】
【課題を解決するための手段】
そのために、本発明の木材の蒸煮及び防虫防腐処理方法は、蒸気ボイラーからの蒸気を乾燥室に噴射させ、該乾燥室を一定温度に保ち、木材の蒸煮中に前記乾燥室の温度が一定温度以上に上昇したら、シャワーから水を前記乾燥室に噴霧して前記乾燥室の温度を一定温度以下に下降させつつ乾燥を終了させ、その後、さらに前記シャワーから防虫防腐剤を木材に噴霧して防虫防腐処理を行うものである。
【0007】
【発明の実施の形態】
以下、本発明の木材の蒸煮及び防虫防腐処理方法を添付図面に基づいて説明する。
図1に示すように、乾燥室1は、木材2の出入扉(図示せず)を設け、内部に木材2が積重収納される空間を形成し、外部から供給された蒸気が洩れないように高圧密封状態に形成される。
前記乾燥室1には、外部施設の蒸気ボイラー(図示せず)からの蒸気を供給する蒸気パイプ3が接続され、120〜160℃の蒸気が前記乾燥室1に噴射される。
さらに、前記乾燥室1にはシャワー5が複数個設けられ、該シャワー5に給水パイプ4が接続され、シャワー5から水を室内に噴霧して前記乾燥室1の温度を低下させるようになっている。
なお、前記乾燥室1には温度センサー6が設けられ、常時前記乾燥室1の温度を計測して給水パイプ4からの水噴霧を制御している。
また、前記シャワー5には薬液パイプ7が接続され、ポンプ槽8に貯留された防虫防腐剤液を前記シャワー5から噴霧する。
前記乾燥室1の床面には、凝縮水及び防虫防腐剤液を回収するための回収樋9が凹設されており、凝縮水は水バルブ10を介して外部へ排出される一方、防虫防腐剤液は薬液バルブ11を介して前記ポンプ槽8へ回収される。
【0008】
次に、本発明の木材の蒸煮及び防虫防腐処理方法を図1に基づいて説明する。
蒸気ボイラー(図示せず)からの120〜160℃の蒸気を蒸気パイプ3から前記乾燥室1に噴射させ、前記乾燥室1を85℃に保ち、木材2を蒸煮する。
木材2の蒸煮中に、前記乾燥室1の温度が90℃以上に上昇したら、給水パイプ4から水をシャワー5に供給し、前記乾燥室1に水を噴霧して前記乾燥室1の温度を80℃に下降させる。
順次温度が上昇したら、このような操作を繰り返して、前記乾燥室1の温度を80〜90℃に保ち、木材2を蒸煮する。
前記木材2をほぼ平均85℃の温度で2〜5時間蒸煮することにより、乾燥させる。
前記木材2は、低温(85℃)で蒸煮するので、自然乾燥時に割れや反りなどを生じることがなく、短時間で乾燥を行うことができる。
【0009】
乾燥処理が終了したら、次に切換バルブを操作して前記シャワー5を薬液パイプ7側に切り換えて防虫防腐剤を噴霧できるようにする。
そして、前記シャワー5から前記乾燥室1に防虫防腐剤を噴霧し、前記乾燥室1内を防虫防腐剤で充満させる。
乾燥した木材は、前記乾燥室1内に充満した防虫防腐剤により、防虫防腐剤液槽に木材を浸すことと同様な防虫防腐処理が行われる。
一方、前記乾燥室1の床面に滴下した防虫防腐剤は、前記回収樋9により回収されて前記薬液バルブ11を介して前記ポンプ槽8に戻る。
なお、水バルブ10は、蒸煮時に前記乾燥室1の床面に滴下した凝縮水を排水するためのものである。
【0010】
【効果】
このように、本発明の木材の蒸煮及び防虫防腐処理方法は、給水パイプから水をシャワーに供給し、乾燥室に水を噴霧して蒸煮室の温度コントロールを行うので、低温(85℃)温度で効率よく蒸煮処理することができる。
また、本発明の木材の蒸煮及び防虫防腐処理方法は、薬液パイプから防虫防腐剤をシャワーに供給し、乾燥室に防虫防腐剤を噴霧して防虫防腐剤で木材を濡らすことにより防虫防腐処理することができる。
【図面の簡単な説明】
【図1】本発明の木材乾燥装置の概略正面図である。
【図2】従来の蒸煮装置の説明図である。
【符号の説明】
1 乾燥室
2 木材
3 蒸気パイプ
4 給水パイプ
5 シャワー
6 温度センサー
7 薬液パイプ
8 ポンプ槽
9 回収樋
10 水バルブ
11 薬液バルブ
[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a method of steaming and insect-preserving wood that can be efficiently steamed at a predetermined temperature by a simple temperature control and spray-treated with an insect-preservative.
[0002]
[Prior art]
Conventionally, for drying wood, there is a method of performing a steaming treatment of heating wood with steam from a steam boiler or the like.
For this purpose, it is necessary to sufficiently heat the material to be dried, such as a cored material, to about 80 to 100 ° C. However, since it is steamed, the material temperature is increased while the dry evaporation from the wood surface is suppressed. be able to.
Japanese Patent Application Laid-Open No. 2002-11705 is known as such a known technique.
[0003]
[Patent Document]
Japanese Patent Application Laid-Open No. 2002-11705 discloses that, as shown in FIG. 2, in a wood A steaming apparatus, a steaming chamber 1 ′ is formed of a heat-insulating and waterproof material, and steam is contained in the steaming chamber 1 ′. The mist hose 7 'connected to the boiler 9' is pulled in, and the wood A to be steamed is carried into the steaming chamber 1 '. The mist hose 7' meanders around and below the carried wood A to be steamed. The mist hose 7 'is steamed from the weave or stitch of the mist hose 7' in a mist state.
[0004]
In such steaming, since the steam temperature of the steam boiler or the like is 120 to 160 ° C., in order to control the temperature of the steaming chamber to 120 ° C. or less, the amount of steam supplied is controlled, that is, the steam boiler is feedback-controlled. Temperature control was very difficult.
Further, after drying, the wood is immersed in an insect preservative liquid tank filled with an insect preservative in order to apply the insect preservative treatment to the wood, which complicates the operation and is inefficient.
[0005]
[Problems to be solved by the invention]
The present invention is a method for steaming wood which is capable of spraying water from a shower and efficiently performing a steaming treatment at a predetermined temperature and spraying an insect repellent from the shower to perform an insect repellent treatment. It is an object of the present invention to provide an insect preservative treatment method.
[0006]
[Means for Solving the Problems]
For this purpose, the method for steaming and insect preservative treatment of wood according to the present invention comprises injecting steam from a steam boiler into a drying chamber, keeping the drying chamber at a constant temperature, and keeping the drying chamber at a constant temperature during wood cooking. When the temperature rises above, water is sprayed from the shower into the drying chamber to end the drying while lowering the temperature of the drying chamber to a certain temperature or less, and then the insecticide preservative is sprayed onto the wood from the shower to further control the insect. It performs preservative treatment.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a method of steaming and preserving insects according to the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, the drying chamber 1 is provided with a door (not shown) for the wood 2, forms a space in which the wood 2 is stacked and stored, and prevents steam supplied from the outside from leaking. Is formed in a high pressure sealed state.
A steam pipe 3 for supplying steam from a steam boiler (not shown) of an external facility is connected to the drying chamber 1, and steam at 120 to 160 ° C. is injected into the drying chamber 1.
Further, a plurality of showers 5 are provided in the drying chamber 1, a water supply pipe 4 is connected to the shower 5, and water is sprayed from the shower 5 into the room to lower the temperature of the drying chamber 1. I have.
Note that a temperature sensor 6 is provided in the drying chamber 1, and the temperature of the drying chamber 1 is constantly measured to control water spray from the water supply pipe 4.
A chemical liquid pipe 7 is connected to the shower 5, and the insect repellent and preservative liquid stored in a pump tank 8 is sprayed from the shower 5.
A collecting gutter 9 for collecting condensed water and an insect repellent is provided on the floor of the drying chamber 1, and the condensed water is discharged to the outside via a water valve 10, while the insect repellent is preserved. The liquid medicine is collected into the pump tank 8 through the liquid medicine valve 11.
[0008]
Next, the method for steaming and insect preservative treatment of wood of the present invention will be described with reference to FIG.
Steam of 120 to 160 ° C. from a steam boiler (not shown) is injected from the steam pipe 3 into the drying chamber 1, the drying chamber 1 is kept at 85 ° C., and the wood 2 is steamed.
When the temperature of the drying chamber 1 rises to 90 ° C. or higher during the cooking of the wood 2, water is supplied from the water supply pipe 4 to the shower 5, and water is sprayed into the drying chamber 1 to lower the temperature of the drying chamber 1. Lower to 80 ° C.
When the temperature rises sequentially, such operation is repeated, and the temperature of the drying chamber 1 is kept at 80 to 90 ° C., and the wood 2 is steamed.
The wood 2 is dried by steaming at a temperature of about 85 ° C. on average for 2 to 5 hours.
Since the wood 2 is steamed at a low temperature (85 ° C.), it can be dried in a short time without causing cracks or warpage during natural drying.
[0009]
After the drying process is completed, the switching valve is operated to switch the shower 5 to the chemical liquid pipe 7 side so that the insect repellent can be sprayed.
Then, an insect preservative is sprayed from the shower 5 into the drying chamber 1 to fill the inside of the drying chamber 1 with the insect preservative.
The dried wood is subjected to the same insect-preservative treatment by the insect-preservative filled in the drying chamber 1 as when the wood is immersed in the insect-preservative liquid tank.
On the other hand, the insecticide / preservative dropped onto the floor of the drying chamber 1 is collected by the collecting gutter 9 and returned to the pump tank 8 via the chemical liquid valve 11.
The water valve 10 drains condensed water dropped on the floor of the drying chamber 1 during steaming.
[0010]
【effect】
As described above, in the method for steaming and insect repellent treatment of wood of the present invention, water is supplied to the shower from the water supply pipe, and water is sprayed into the drying chamber to control the temperature of the steaming chamber. For efficient steaming.
In addition, the method for steaming and insect preservative treatment of wood according to the present invention provides an insect preservative by supplying an insect preservative from a chemical liquid pipe to a shower, spraying the insect preservative into a drying chamber, and wetting the wood with the insect preservative. be able to.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a wood drying apparatus according to the present invention.
FIG. 2 is an explanatory view of a conventional steaming device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Drying room 2 Wood 3 Steam pipe 4 Water supply pipe 5 Shower 6 Temperature sensor 7 Chemical liquid pipe 8 Pump tank 9 Recovery gutter 10 Water valve 11 Chemical liquid valve

Claims (1)

蒸気ボイラーからの蒸気を乾燥室に噴射させ、該乾燥室を一定温度に保ち、木材の蒸煮中に前記乾燥室の温度が一定温度以上に上昇したら、シャワーから水を前記乾燥室に噴霧して前記乾燥室の温度を一定温度以下に下降させつつ乾燥を終了させ、その後、さらに前記シャワーから防虫防腐剤を木材に噴霧して防虫防腐処理を行うことを特徴とする木材の蒸煮及び防虫防腐処理方法。The steam from the steam boiler is injected into the drying chamber, the drying chamber is maintained at a constant temperature, and when the temperature of the drying chamber rises to a certain temperature or more during the cooking of wood, water is sprayed from the shower into the drying chamber. Steaming and insect preservative treatment of wood, wherein drying is completed while lowering the temperature of the drying chamber to a certain temperature or lower, and thereafter, insect repellent is sprayed on the wood from the shower to perform insect repellent treatment. Method.
JP2003113995A 2003-04-18 2003-04-18 Method for steaming, insect-repelling and preservative treatment of timber Pending JP2004314526A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003113995A JP2004314526A (en) 2003-04-18 2003-04-18 Method for steaming, insect-repelling and preservative treatment of timber

Publications (1)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006051155A1 (en) * 2004-11-10 2006-05-18 Tekmawood Oy Method and apparatus for the protection of timber
KR101418985B1 (en) 2013-01-30 2014-07-11 (주)다정하이테크 A preserving method and manufactured by treated wood
CN104029265A (en) * 2014-06-27 2014-09-10 融安县肖销竹业有限责任公司 Bamboo strip steaming method
CN104290157A (en) * 2014-10-08 2015-01-21 苏州市相城区阳澄湖镇工耕堂家具工作室 Fragrance-adding treating process for yellow pear wood
CN105382893A (en) * 2015-10-27 2016-03-09 中山市大涌镇生产力促进中心 Insect preventing treatment method for wood
CN118544433A (en) * 2024-07-30 2024-08-27 江苏宏雅木业有限公司 A log squaring, watering and steaming device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006051155A1 (en) * 2004-11-10 2006-05-18 Tekmawood Oy Method and apparatus for the protection of timber
KR101418985B1 (en) 2013-01-30 2014-07-11 (주)다정하이테크 A preserving method and manufactured by treated wood
CN104029265A (en) * 2014-06-27 2014-09-10 融安县肖销竹业有限责任公司 Bamboo strip steaming method
CN104029265B (en) * 2014-06-27 2016-08-24 融安县肖销竹业有限责任公司 The boiling method of bamboo cane
CN104290157A (en) * 2014-10-08 2015-01-21 苏州市相城区阳澄湖镇工耕堂家具工作室 Fragrance-adding treating process for yellow pear wood
CN105382893A (en) * 2015-10-27 2016-03-09 中山市大涌镇生产力促进中心 Insect preventing treatment method for wood
CN118544433A (en) * 2024-07-30 2024-08-27 江苏宏雅木业有限公司 A log squaring, watering and steaming device

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