JPH02140590A - Lumber drying device - Google Patents
Lumber drying deviceInfo
- Publication number
- JPH02140590A JPH02140590A JP29353888A JP29353888A JPH02140590A JP H02140590 A JPH02140590 A JP H02140590A JP 29353888 A JP29353888 A JP 29353888A JP 29353888 A JP29353888 A JP 29353888A JP H02140590 A JPH02140590 A JP H02140590A
- Authority
- JP
- Japan
- Prior art keywords
- wood
- drying
- drying chamber
- weight
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001035 drying Methods 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 claims abstract 2
- 239000002023 wood Substances 0.000 claims description 99
- 230000005855 radiation Effects 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910001873 dinitrogen Inorganic materials 0.000 description 8
- 238000005303 weighing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、木材乾燥装置の改良に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to improvements in wood drying equipment.
従来の木材乾燥装置は、木材乾燥時に乾燥室内の温度の
みを検出し、その検出温度に基づき乾燥室内の温度を制
御するよう構成されていたため、水分■の異なる複数の
木材全てを円滑、且つ良好に乾燥させることはできなか
った。Conventional wood drying equipment was configured to detect only the temperature inside the drying chamber when drying wood, and control the temperature inside the drying chamber based on the detected temperature, so it could dry all of the wood with different moisture levels smoothly and efficiently. It was not possible to dry it.
また、木材乾燥室内の熱源の近傍に置かれた木材は乾燥
しすぎてしまい、他方熱源から離れていたり、熱の当り
方の悪い箇所に置かれた木材は乾燥が不充分となるため
、場合によって再度乾燥をやり直さなければならないと
云う問題点があった。Additionally, wood placed near the heat source in the wood drying room will dry out too much, while wood placed far away from the heat source or in a location with poor heat distribution will not dry sufficiently. There was a problem in that drying had to be repeated again.
本発明は軟土の観点に立ってなされたものであって、そ
の目的とするところは、木材の乾燥速度を適切に制御し
、乾燥室内に収納された全ての木材を短時間に円滑、且
つ良好に乾燥させることのできる木材乾燥装置を提供す
ることにある。The present invention was made from the viewpoint of soft soil, and its purpose is to appropriately control the drying rate of wood and dry all the wood stored in the drying chamber smoothly and quickly. An object of the present invention is to provide a wood drying device that can dry wood well.
ｃ問題点を解決するための手段〕
而して、上記の目的は、熱源を具備した乾燥室と、
上記乾燥室内の木材の重１ｗを計測し得る重量計と、
上記木材の乾燥速度
Ｗ ｄｔ
但し、Ｗｃは木材の乾燥重量
賀、は木材中の水分重量
を算出する演算回路と、
予め定められたプログラムに従って上記乾燥速度■を制
御するため、少なくとも乾燥室内に放出される熱流ｆｔ
ｔＱを調節する装置を具備した木材乾燥装置によって達
成される。Means for Solving Problem c] Therefore, the above purpose is to provide a drying chamber equipped with a heat source, a weighing scale capable of measuring the weight 1w of the wood in the drying chamber, and a drying speed W dt of the wood. However, Wc is the dry weight of the wood, and Wc is the arithmetic circuit that calculates the water weight in the wood, and at least the heat flow ft released into the drying chamber to control the drying speed according to a predetermined program.
This is achieved by a wood drying device equipped with a device for regulating tQ.
乾燥のための熱源には複数の遠赤外線放射管が用いられ
、それらには輪番的に高温の熱媒体が供給される。A plurality of far-infrared radiation tubes are used as a heat source for drying, and a high-temperature heat medium is supplied to them in rotation.
なお、乾燥室内に放出される熱流量を調節するのに加え
、乾燥室内の温度、湿度及び圧力を制御Ｉするよう構成
することが推奨される。In addition to regulating the heat flow rate released into the drying chamber, it is recommended that the temperature, humidity, and pressure within the drying chamber be controlled.
軟土の如く構成することにより、木材の乾燥速度を適切
に制御することが可能となり、乾燥室内に収納された全
ての木材を短時間に円滑、且つ良好に乾燥させることが
可能となる。By configuring it like soft soil, it becomes possible to appropriately control the drying rate of the wood, and it becomes possible to dry all the wood stored in the drying chamber smoothly and well in a short time.
〔実 施 例〕゛
以下、図面を参照しつつ本発明の詳細を具体的に説明す
る。[Example] Hereinafter, details of the present invention will be specifically explained with reference to the drawings.
第１図は、本発明にかかる木材乾燥装置の一実施例を示
す説明図、第２図は、その熱源部分の構成を示す説明図
である。FIG. 1 is an explanatory diagram showing one embodiment of the wood drying apparatus according to the present invention, and FIG. 2 is an explanatory diagram showing the configuration of the heat source portion thereof.
第１図中、ｌは基台、２は木材乾燥室、３．３は柱、４
．４は各段が桟状に形成された木材搭載棚、５．５は木
材、６．６は遠赤外線放射管、７．７はループ式重量計
、８．８はストレーンゲージ、９はファン、１０は湿度
計、１１は温度計、１２は反射鏡、１３乃至１５は変換
器、１６は演算回路、１７は微分回路、１８は時計、１
９はコントローラ、２０はバーナ、２１．２１はコント
ロールモータ、２２．２２はダンパであり、また、第２
図中、２３は熱交換器、２４は送風機、２５．２５は熱
交ＩＡ ２３用のフィン付きパイプである。In Figure 1, l is the base, 2 is the wood drying room, 3.3 is the pillar, 4
．． 4 is a wooden shelf with each stage shaped like a crosspiece, 5.5 is wood, 6.6 is a far-infrared radiation tube, 7.7 is a loop weighing scale, 8.8 is a strain gauge, 9 is a fan, 10 is a hygrometer, 11 is a thermometer, 12 is a reflector, 13 to 15 are converters, 16 is an arithmetic circuit, 17 is a differential circuit, 18 is a clock, 1
9 is a controller, 20 is a burner, 21.21 is a control motor, 22.22 is a damper, and a second
In the figure, 23 is a heat exchanger, 24 is a blower, and 25.25 is a finned pipe for the heat exchanger IA 23.
而して、木材乾燥室２は、基台１上に設けられており、
上記木）Ａ乾燥室２内には全部は図示されていないが四
個のループ式重量計７．７が四方に配置されている。上
記ループ式重量計７．７上には各段が桟状に形成され、
且つ多段に形成された木材搭載棚４．４が搭載され、上
記木材搭載棚４．４上に乾燥ずべき木材５．５が並べら
れる。Thus, the wood drying chamber 2 is provided on the base 1,
Although not all of them are shown in the above-mentioned drying room 2, four loop-type weight scales 7.7 are arranged on all sides. Each stage is formed in the shape of a crosspiece on the loop type weighing scale 7.7,
In addition, a wood loading shelf 4.4 formed in multiple stages is mounted, and wood 5.5 to be dried is arranged on the wood loading shelf 4.4.
木材乾燥室２内には木材乾燥室の内壁面を覆うように複
数の遠赤外線放射管６．６が一定の間隔で、且つ木材搭
載棚４．４に並べられる木材５．５と平行となるよう配
置され、更に木材搭載棚４．４の下面にもそれぞれ複数
の遠赤外線放射管６．６が、上記木材搭１Ｈ１ｌＩ４．
４に並べられる木材５．５と平行となるよう配置される
。Inside the wood drying chamber 2, a plurality of far-infrared radiation tubes 6.6 are arranged at regular intervals so as to cover the inner wall surface of the wood drying chamber, and are parallel to the wood 5.5 arranged on the wood loading shelf 4.4. Furthermore, a plurality of far-infrared radiation tubes 6.6 are arranged on the lower surface of each of the wood mounting shelves 4.4, respectively, on the wood tower 1H1lI4.
It is arranged so that it is parallel to the wood 5.5 arranged in 4.
木材乾燥時に於ける木材の乾燥の度合は、四個のループ
式重量計７．７により木材の重量から判断され、上記四
個のループ式重量計７．７のストレーンゲージ８．８か
らの出力は、それぞれ対応する変換器でデジタル信号に
変換された後、演算回路１６で加算され、一方では直接
に、又他の一方では上記微分回路１７を介してその出力
する微分値と共にコントローラ１９に入力される。The degree of dryness of the wood during wood drying is determined from the weight of the wood using the four loop weighing scales 7.7, and the output from the strain gauge 8.8 of the four loop weighing scales 7.7. are converted into digital signals by the corresponding converters, and then added by the arithmetic circuit 16, and inputted to the controller 19 together with the output differential value, on the one hand directly, and on the other hand via the differentiating circuit 17. be done.
また、木ｌ乾燥時は上記木材乾燥室２内の空気がファン
９によって外部に導かれ、湿度計１０及び温度計１１に
よって木材乾燥室２内の湿度及び温度状態が検出され、
それぞれの検出値は変換器１３及び１４でデジタル信号
に変換された後コントローラ１９に入力される。In addition, during wood drying, the air in the wood drying chamber 2 is guided outside by the fan 9, and the humidity and temperature conditions in the wood drying chamber 2 are detected by the hygrometer 10 and thermometer 11,
Each detected value is converted into a digital signal by converters 13 and 14 and then input to a controller 19.
而して、本発明にかかる木材乾燥装置は、木材乾燥室２
内の木材搭載棚４．４上に乾燥すべき木材５．５を並べ
、木材乾燥室２の内壁面及び木材搭′ａ柵４の下面に一
定の間隔で配置された遠赤外線放射管６．６に高温ガス
を流通させると、上記遠赤外線放射管６．６からの熱に
より木材搭載棚４．４に塔載された木材５．５の乾燥が
開始される。Thus, the wood drying device according to the present invention has a wood drying chamber 2.
The lumber 5.5 to be dried is arranged on the lumber loading shelf 4.4 inside the lumber drying chamber 2, and far infrared radiation tubes 6. When high-temperature gas is passed through 6, the heat from the far-infrared radiation tube 6.6 starts drying the wood 5.5 loaded on the wood loading shelf 4.4.
木材５．５の乾燥の度合は、ループ式重量計７．７によ
り木材の重ｆｆ１Ｗから判断される。即ち、木材５．５
が乾燥するに伴い、木材５．５中に含まれていた水分が
ケーシング２内に放出されるので、その分だけ木材５．
５の重ｆｆ１Ｗは軽く成る。The degree of dryness of the wood 5.5 is determined from the weight ff1W of the wood using a loop weighing scale 7.7. That is, wood 5.5
As the wood 5.5 dries, the moisture contained in the wood 5.5 is released into the casing 2, so the wood 5.5 dries accordingly.
The weight ff1W of 5 becomes lighter.
而して、木材乾燥時には、ループ式重量計７．７によっ
て木材５．５の重量が常時検出され、演算回路１６から
は木材の重量信号が出力され、その出力信号はコントロ
ーラ１９及び微分回路１７に入力せしめられる。During wood drying, the weight of the wood 5.5 is constantly detected by the loop weighing scale 7.7, and the calculation circuit 16 outputs a wood weight signal, which is sent to the controller 19 and the differentiation circuit 17. You will be prompted to enter
微分回路１７は、木材５．５の乾燥速度Ｗ
ｄｔ
ｌ ｄｗＩＩ
但し、−Ｃは木材の乾燥重量
６は木材中の水分重量
を算出し、この算出値をコントローラ１９に入力する。Differential circuit 17 calculates the drying speed W of wood 5.5
dt l dwII However, -C is the dry weight of the wood, and 6 is the moisture weight in the wood, and this calculated value is input to the controller 19.
また、木材乾燥室２内の空気がファン９によって外部に
導かれ、湿度計１０及び温度計１１によって上記木材乾
燥室２内の湿度及び温度状態が検出され、それぞれの検
出値が変換器１３及び１４でデジタル信号に変換された
後コントローラ１９に入力される。Further, the air inside the wood drying chamber 2 is guided outside by a fan 9, and the humidity and temperature conditions inside the wood drying chamber 2 are detected by a hygrometer 10 and a thermometer 11, and the respective detected values are detected by a converter 13 and a thermometer 11. After being converted into a digital signal at step 14, the signal is input to the controller 19.
而して、コントローラ１９は、乾燥速度■を制御ｎする
ため、予め定められたプログラムに従ってバーナ２０及
びコントロールモータ２１．２１を制御し、木材乾燥室
２内に放出される熱流量を制御する。The controller 19 controls the burner 20 and the control motors 21, 21 according to a predetermined program in order to control the drying speed (n), and controls the heat flow rate released into the wood drying chamber 2.
木材乾燥装置の熱源部分は第２図に示す如く、バーナ２
０と熱交換器２３と多数の遠赤外線放射管６．６とから
構成されており、バーナ２０よって熱交換器２３が加熱
されるに伴い、上記遠赤外線放射管６．６に供給される
高圧のチッ素ガスが４００度乃至８００度に加熱され、
この加熱された高圧のチッ素ガスが送風４１＄１２４に
よって遠赤外線放射管６．６に供給され、上記遠赤外線
放射管６を通過した高圧のチッ素ガスは再び熱交換器２
３に戻される。なお、バーナ２０の排気ガスは熱交換器
用のフィン付きパイプ２５．２５を通って外部にυＦ出
される。The heat source part of the wood drying device is burner 2 as shown in Figure 2.
0, a heat exchanger 23, and a large number of far-infrared radiation tubes 6.6, and as the heat exchanger 23 is heated by the burner 20, high pressure is supplied to the far-infrared radiation tubes 6.6. of nitrogen gas is heated to 400 to 800 degrees,
This heated high-pressure nitrogen gas is supplied to the far-infrared radiation tube 6.6 by a blower 41$124, and the high-pressure nitrogen gas that has passed through the far-infrared radiation tube 6 is returned to the heat exchanger 2.
Returned to 3. Note that the exhaust gas from the burner 20 is emitted to the outside through a finned pipe 25.25 for a heat exchanger.
それぞれの遠赤外線放射管６．６のチッ素ガスが供給側
開口部には、それぞれダンパ２２．２２が設けられてお
り、上記ダンパ２２．２２はそれぞれ対応するコントロ
ールモータ２１．２Ｉにより開閉制御が行われるよう構
成されている。A damper 22.22 is provided at the nitrogen gas supply side opening of each far-infrared radiation tube 6.6, and the opening and closing of the damper 22.22 is controlled by a corresponding control motor 21.2I. is configured to take place.
コントローラ１９がコントロールモータ２１．２１ヲ制
御−するに伴い、それぞれの遠赤外線放射管６．６の開
口部に設けられたダンパ２２．２２が開閉制御され、そ
れぞれの遠赤外線放射管６．６へのチッ素ガスの供給が
制御され、これにより上記遠赤外線放射管６．６の有効
放熱面積が調節される。As the controller 19 controls the control motors 21.21, the dampers 22.22 provided at the openings of the respective far-infrared radiation tubes 6.6 are controlled to open and close, and the dampers 22.22 to the respective far-infrared radiation tubes 6.6 are controlled to open and close. The supply of nitrogen gas is controlled, thereby adjusting the effective heat radiation area of the far-infrared radiation tube 6.6.
木材乾燥開始時には、すべての遠赤外線放射管６．６の
ダンパ２２．２２が開放され、所望の平均有効放熱面積
が与えられる。At the start of wood drying, the dampers 22.22 of all far-infrared radiation tubes 6.6 are opened to provide the desired average effective heat radiation area.
然しなから、乾燥がある程度進行すると、その乾燥速度
を遅くする必要があるから、一部の遠赤外線放射管６．
６のダンパ２２．２２を閉じてチッ素ガスの供給を停止
するが、特定の遠赤外線放射管６を停止したま−にして
おくと乾燥の不均一が生じるから、輪番的にダンパ２２
．２２を開閉して場所的、時間的に均一に遠赤外線を放
射するよう制御するものである。However, once the drying progresses to a certain extent, it is necessary to slow down the drying speed, so some far-infrared radiation tubes 6.
The dampers 22 and 22 of 6 are closed to stop the supply of nitrogen gas. However, if a particular far-infrared radiation tube 6 is left stopped, uneven drying will occur, so the dampers 22 and 22 are closed in rotation.
．． 22 is opened and closed to control the far infrared rays to be emitted uniformly both in place and time.
そのため、木材乾燥室２内の木材搭載４１１４．４に並
べられた各木材５．５には、その乾燥の度合いに応じて
適切な熱量が与えられるので、木材を短時間に効率良く
乾燥させることができる。Therefore, an appropriate amount of heat is given to each piece of wood 5.5 arranged on the wood loading rack 4114.4 in the wood drying room 2 according to the degree of drying, so the wood can be dried efficiently in a short time. Can be done.
なお、熱■の制御は乾燥速度■を、木材の含水率Ｓ ＝
Ｗ、１／’ｔ４又は１１ ／ Ｗｃをパラメータとし
て、式
で示されるよう制御するよう構成するものでもよく、そ
の場合には木材の質や太さに応してｎを１以上２以下、
望ましくは１．３以上１．８以下の値に設定することが
ＩＩｋ奨される。In addition, the heat ■ is controlled by the drying rate ■, the moisture content of the wood S =
It may be configured to control as shown by the formula using W, 1/'t4 or 11/Wc as a parameter, in which case n may be set between 1 and 2, depending on the quality and thickness of the wood.
It is recommended that the value be preferably set to a value of 1.3 or more and 1.8 or less.
本発明は畝上の如く構成されるので、本発明によるとき
には、木材の乾燥速度を適切に制御することが可能とな
り、乾燥室内に収納された全ての木材を短時間に円滑、
且つ良好に乾燥させることが可能となる。Since the present invention is structured like a ridge, when using the present invention, it is possible to appropriately control the drying speed of the wood, and all the wood stored in the drying chamber can be smoothly dried in a short time.
Moreover, it becomes possible to dry it well.
なお、本発明の構成は畝上の実施例に限定されるもので
はない、即ち、例えば、本実施例において遠赤外線放射
管の内部を流通させる熱媒を高圧のチッ素ガスとしたが
、上記チッ素ガスに限定されず広く公知の熱媒が利用で
きるものであり、又同様な温度制御ができるものであれ
ば遠赤外線放射管に限定されず他の熱源も使用し得るも
のであり、本発明はその目的の範囲内に於いて」二記の
説明から当業者が容易に想到し得る総ての変更実施例を
包１■するものである。Note that the configuration of the present invention is not limited to the embodiment on the ridge. For example, in this embodiment, high-pressure nitrogen gas was used as the heat medium flowing inside the far-infrared radiation tube, but the above-mentioned It is not limited to nitrogen gas, but can use a widely known heat medium, and is not limited to far-infrared radiation tubes, but can also use other heat sources as long as they can perform similar temperature control. Within the scope of its purpose, the invention encompasses all modifications that can be easily figured out by those skilled in the art from the following description.
第１図は、本発明にかかる木材乾燥装置の一実施例を示
す説明図、第２図は、その熱源部分の構成を示す説明図
である。
ｌ・・・・・・−・−・−−−−−−・・−・・−・・
・・・基台２−・・−・・・・・−・−一−−−−−・
・・−・−・木材乾燥室３−・・−〜−−−−−−・−
・・・・−一−−−・・−・・・・−柱４・−−−−−
−・−・・−・−−−−−−−−−−−・・−・−木相
搭載棚５−・−・・・・−・−・・・・・・・−・・−
・・・・・木材６−・・−−−−−・−・・−・−・・
−−−−−−−・・−・遠赤外線放射管７−・−・・−
・・−一−−−−−−・−・・・・−−−−−−・ルー
プ式重量計８−・−・−・・−・・・・・・・−・・−
−一−−−−・・・ストレーンゲージ９・−・・−・−
・−・・−・−・・・−・・−・−・−ファン１０−・
−・・・−−−ｍ−−−−・−−−一−−−・・・・・
−湿度計１１・・・・−−−−−一−−−−・−・・−
・−・−・−・・・温度ｄ１・・・−・・・反射鏡
−・・・−・・・−・−変換器
・−・−・−・−・演算回路
・・・・・−・・−・・−・・−微分回路時計
・・・・−・・コントローラ
バーナ
・・・・・−・−・−・・−・−・・・コントロールモ
ータ・〜ダンパ
熱交換器
送風機
・・・フィン付きパイプ
１２−一−−−−・
１３、１４、１５
１Ｇ・・−一−−−・
１７・・−・−・・
１９・・・・
２１・・−−一・・・−・FIG. 1 is an explanatory diagram showing one embodiment of the wood drying apparatus according to the present invention, and FIG. 2 is an explanatory diagram showing the configuration of the heat source portion thereof. l・・・・・・−・−・−−−−−−・・−・・−・・
...Base 2--...--...---1---------
・・・・−・Wood drying room 3−・・−～−−−−−−・−
・・・・−1−−−・・−・・・・・−Pillar 4・−−−−
−・−・・−・−−−−−−−−−−−・・−・−Wood phase loading shelf 5−・−・・・−・−・・・・・・・−・・−
・・・・・・Wood 6−・・−−−−−・−・・−・−・・
−−−−−−−・・−・Far infrared radiation tube 7−・−・・−
・・−１−−−−−−・−・・・・−−−−−−・Loop type weighing scale 8−・−・−・・−・・・・・・・−・・−
−1−−−−・Strain gauge 9・−・・−・−
・−・・−・−・−・・−・−・−Fan 10−・
−・・・−−−m−−−−・−−−1−−−・・・・・・・
−Hygrometer 11・・・・・−−−−1−−−−・−・・−
・−・−・−・Temperature d1・・・−・Reflector−・−・−・−Converter・−・−・−・−・Arithmetic circuit・・・・−・・・・・−・・−Differential circuit clock・・・・−・・Controller burner・・・・−・−・−・・−・−・・Control motor・～Damper Heat exchanger Blower・・・Finned pipe 12-1---- 13, 14, 15 1G...-1---- 17...--19... 21--1...--
Claims (1)
Ｃは木材の乾燥重量 Ｗ＿Ｍは木材中の水分重量 を算出する演算回路と、 予め定められたプログラムに従って上記乾燥速度Ｖを制
御するため、少なくとも乾燥室内に放出される熱流量Ｑ
を調節する装置を具備した木材乾燥装置。 ２）熱源を具備した乾燥室と、 乾燥室内の木材の重量Ｗを計測し得る重量計と、 上記木材の乾燥速度 Ｖ＝１／Ｗ・ｄＷ／ｄｔ ＝１／（Ｗ＿Ｃ＋Ｗ＿Ｍ）・ｄＷ＿Ｍ／ｄｔ但し、Ｗ＿
Ｃは木材の乾燥重量 Ｗ＿Ｍは木材中の水分重量 を算出する演算回路と、 予め定められたプログラムに従って上記乾燥速度Ｖを制
御するため、乾燥室内に放出される熱流量Ｑと、乾燥室
内湿度Ｈを調節する装置を具備した木材乾燥装置。 ３）熱源を具備した乾燥室と、 乾燥室内の木材の重量Ｗを計測し得る重量計と、 上記木材の乾燥速度 Ｖ＝１／Ｗ・ｄＷ／ｄｔ ＝１／（Ｗ＿Ｃ＋Ｗ＿Ｍ）・ｄＷ＿Ｍ／ｄｔ但し、Ｗ＿
Ｃは木材の乾燥重量 Ｗ＿Ｍは木材中の水分重量 を算出する演算回路と、 予め定められたプログラムに従って上記乾燥速度Ｖを制
御するため、乾燥室内に放出される熱流量Ｑと、乾燥室
内湿度Ｈと、乾燥室内温度Ｔを調節する装置を具備した
木材乾燥装置。 ４）熱源を具備した乾燥室と、 乾燥室内の木材の重量Ｗを計測し得る重量計と、 上記木材の乾燥速度 Ｖ＝１／Ｗ・ｄＷ／ｄｔ ＝１／（Ｗ＿Ｃ＋Ｗ＿Ｍ）・ｄＷ＿Ｍ／ｄｔ但し、Ｗ＿
Ｃは木材の乾燥重量 Ｗ＿Ｍは木材中の水分重量 を算出する演算回路と、 予め定められたプログラムに従って上記乾燥速度Ｖを制
御するため、乾燥室内に放出される熱流量Ｑと、乾燥室
内湿度Ｈと、乾燥室内温度Ｔ、乾燥室内圧力Ｐとを調節
する装置を具備した木材乾燥装置。 ５）多数の遠赤外線放射管が乾燥すべき材料と平行に、
且つ多段に配置された特許請求の範囲第１項乃至第４項
のうちのいずれか一に記載の木材乾燥装置。 ６）熱源が、高温の熱媒がその内部を流通する複数の遠
赤外線放射管であり、その放熱量が有効放熱面積を調節
することにより制御される特許請求の範囲第１項乃至第
４項のうちのいずれか一に記載の木材乾燥装置。 ７）複数の遠赤外線放射管がそれぞれ内部を流通する熱
媒体の流通を制御するダンパ若しくはバルブを有し、有
効放射面積の制御が上記ダンパ若しくはバルブの開閉に
よって行なわれる特許請求の範囲第６項記載の木材乾燥
装置。 ８）一定の有効放熱面積を保持すべき場合、すべての遠
赤外線放射管のダンパ若しくはバルブが輪番的に開閉さ
れ、所望の平均有効放熱面積が与えられ、且つ場所的及
び時間的に均一な放熱が行われる特許請求の範囲第６項
記載の木材乾燥装置。 ９）熱源により木材を乾燥し、乾燥した木材の重量Ｗを
計測し、 乾燥速度Ｖが、木材の含水率Ｓ＝Ｗ＿Ｍ／Ｗ又はＷ＿Ｍ
／Ｗ＿Ｃをパラメータとして、式 Ｖ＝ＫＳ＾ｎ 但し、１≦ｎ≦２ により制御されることを特徴とする木材乾燥方法。[Claims] 1) A drying chamber equipped with a heat source, a scale capable of measuring the weight W of wood in the drying chamber, and a drying rate of the wood V=1/W・dW/dt=1/(W_C+W_M )・dW_M/dtHowever, W_
C is the dry weight of the wood W_M is an arithmetic circuit that calculates the water weight in the wood, and at least the heat flow rate Q released into the drying chamber in order to control the drying speed V according to a predetermined program.
A wood drying device equipped with a device for adjusting 2) A drying room equipped with a heat source, a scale that can measure the weight W of the wood in the drying room, and the drying speed of the wood V = 1/W・dW/dt = 1/(W_C+W_M)・dW_M/dt However, , W_
C is the dry weight of the wood W_M is an arithmetic circuit that calculates the moisture weight in the wood, the heat flow rate Q released into the drying chamber in order to control the drying speed V according to a predetermined program, and the humidity H in the drying chamber. A wood drying device equipped with a device for adjusting 3) A drying room equipped with a heat source, a scale that can measure the weight W of the wood in the drying room, and the drying rate of the wood mentioned above V = 1/W・dW/dt = 1/(W_C+W_M)・dW_M/dt However, , W_
C is the dry weight of the wood W_M is an arithmetic circuit that calculates the moisture weight in the wood, the heat flow rate Q released into the drying chamber in order to control the drying speed V according to a predetermined program, and the humidity H in the drying chamber. and a wood drying device equipped with a device for adjusting the drying room temperature T. 4) A drying room equipped with a heat source, a scale that can measure the weight W of the wood in the drying room, and the drying speed of the wood V = 1/W・dW/dt = 1/(W_C+W_M)・dW_M/dt However, , W_
C is the dry weight of the wood W_M is an arithmetic circuit that calculates the moisture weight in the wood, the heat flow rate Q released into the drying chamber in order to control the drying speed V according to a predetermined program, and the humidity H in the drying chamber. A wood drying apparatus comprising a device for adjusting a drying chamber temperature T and a drying chamber pressure P. 5) A number of far-infrared radiation tubes are placed parallel to the material to be dried,
The wood drying device according to any one of claims 1 to 4, which is arranged in multiple stages. 6) Claims 1 to 4, wherein the heat source is a plurality of far-infrared radiation tubes through which a high-temperature heating medium flows, and the amount of heat radiation is controlled by adjusting the effective heat radiation area. The wood drying device according to any one of the above. 7) Claim 6, wherein each of the plurality of far-infrared radiation tubes has a damper or a valve for controlling the flow of a heat medium flowing therethrough, and the effective radiation area is controlled by opening and closing the damper or valve. Wood drying equipment as described. 8) When a constant effective heat radiation area is to be maintained, the dampers or valves of all far-infrared radiation tubes are opened and closed in rotation to provide the desired average effective heat radiation area and to ensure uniform heat radiation in location and time. 7. The wood drying apparatus according to claim 6, wherein: 9) Dry the wood using a heat source, measure the weight W of the dried wood, and determine if the drying rate V is the moisture content of the wood S = W_M/W or W_M
A method for drying wood, characterized in that it is controlled by the formula V=KS^n, where 1≦n≦2, with /W_C as a parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29353888A JPH02140590A (en) | 1988-11-22 | 1988-11-22 | Lumber drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29353888A JPH02140590A (en) | 1988-11-22 | 1988-11-22 | Lumber drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02140590A true JPH02140590A (en) | 1990-05-30 |
Family
ID=17796043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29353888A Pending JPH02140590A (en) | 1988-11-22 | 1988-11-22 | Lumber drying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02140590A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7347579B2 (en) | 2005-06-15 | 2008-03-25 | Takata Corporation | Buckle apparatus and seat belt apparatus |
| JP2008185604A (en) * | 2007-01-26 | 2008-08-14 | Fujitsu Ltd | Electronic apparatus |
| JP2018071836A (en) * | 2016-10-26 | 2018-05-10 | 北越電建株式会社 | Far-infrared drying apparatus |
| EP3531051A1 (en) * | 2018-02-21 | 2019-08-28 | Reinhard Brunner | Drying device for drying hygroscopic material to be dried |
| US10619921B2 (en) | 2018-01-29 | 2020-04-14 | Norev Dpk, Llc | Dual path kiln and method of operating a dual path kiln to continuously dry lumber |
| US10895419B2 (en) | 2018-02-21 | 2021-01-19 | Reinhard Brunner | Drying device for drying hygroscopic material to be dried |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5089967A (en) * | 1973-12-15 | 1975-07-18 | ||
| JPS618478B2 (en) * | 1976-11-03 | 1986-03-14 | Nuovo Pignone Spa | |
| JPS6220475A (en) * | 1985-07-19 | 1987-01-29 | Victor Co Of Japan Ltd | Synchronous coupler |
| JPS6333116U (en) * | 1986-08-18 | 1988-03-03 | ||
| JPS6375479A (en) * | 1986-09-19 | 1988-04-05 | 株式会社 ト−チク | Hot-air control method and device in wood drier |
-
1988
- 1988-11-22 JP JP29353888A patent/JPH02140590A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5089967A (en) * | 1973-12-15 | 1975-07-18 | ||
| JPS618478B2 (en) * | 1976-11-03 | 1986-03-14 | Nuovo Pignone Spa | |
| JPS6220475A (en) * | 1985-07-19 | 1987-01-29 | Victor Co Of Japan Ltd | Synchronous coupler |
| JPS6333116U (en) * | 1986-08-18 | 1988-03-03 | ||
| JPS6375479A (en) * | 1986-09-19 | 1988-04-05 | 株式会社 ト−チク | Hot-air control method and device in wood drier |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7347579B2 (en) | 2005-06-15 | 2008-03-25 | Takata Corporation | Buckle apparatus and seat belt apparatus |
| JP2008185604A (en) * | 2007-01-26 | 2008-08-14 | Fujitsu Ltd | Electronic apparatus |
| JP2018071836A (en) * | 2016-10-26 | 2018-05-10 | 北越電建株式会社 | Far-infrared drying apparatus |
| US10619921B2 (en) | 2018-01-29 | 2020-04-14 | Norev Dpk, Llc | Dual path kiln and method of operating a dual path kiln to continuously dry lumber |
| EP3531051A1 (en) * | 2018-02-21 | 2019-08-28 | Reinhard Brunner | Drying device for drying hygroscopic material to be dried |
| US10895419B2 (en) | 2018-02-21 | 2021-01-19 | Reinhard Brunner | Drying device for drying hygroscopic material to be dried |
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