JPS63105195A - Multistage explosion grinding of fibrous material - Google Patents
Multistage explosion grinding of fibrous materialInfo
- Publication number
- JPS63105195A JPS63105195A JP24685586A JP24685586A JPS63105195A JP S63105195 A JPS63105195 A JP S63105195A JP 24685586 A JP24685586 A JP 24685586A JP 24685586 A JP24685586 A JP 24685586A JP S63105195 A JPS63105195 A JP S63105195A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- container
- stage
- fibrous material
- hopper
- 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
- 239000002657 fibrous material Substances 0.000 title claims description 22
- 238000004880 explosion Methods 0.000 title description 2
- 238000005422 blasting Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 19
- 239000002023 wood Substances 0.000 description 9
- 238000003860 storage Methods 0.000 description 8
- 238000010025 steaming Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000002360 explosive Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000013341 scale-up Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 101150002896 RNR2 gene Proteins 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Landscapes
- Disintegrating Or Milling (AREA)
- Paper (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
発明の目的
[産業上の利用分野]
本発明は、木材チップなどの繊維質材料を粉砕、繊維化
する、爆砕方法の改良に関する。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention [Industrial Application Field] The present invention relates to an improvement in a blasting method for crushing and fiberizing fibrous materials such as wood chips.
l従来の技術】
近年、木材をはじめとする繊維質材料の飼料化、糖化、
といった木質系バイオマスの利用、およびアルコール発
酵による石油や石炭の代替エネルギーの取得に関する研
究が盛んでおる。 このような利用のための前処理の一
つとして、爆砕が行なわれる。1. Prior Art In recent years, fibrous materials such as wood have been turned into animal feed, saccharified,
There is active research into the use of woody biomass, such as carbon dioxide, and the acquisition of alternative energy to oil and coal through alcohol fermentation. Explosive crushing is performed as one of the pre-treatments for such use.
爆砕は、木材チップなどを高温高圧の水蒸気で蒸煮した
のち、急激に圧力を解放することにより、凝縮水の気化
に伴う爆発的な体積膨張と、ノズルからの高速噴出によ
る機械的な破壊によって、木材を筒枠し、繊維化する操
作である。Explosive crushing involves steaming wood chips and other materials in high-temperature, high-pressure steam and then rapidly releasing the pressure, resulting in explosive volumetric expansion due to vaporization of condensed water and mechanical destruction caused by high-speed jets from a nozzle. This is the process of forming wood into cylinders and turning it into fibers.
爆砕を連続的に実施しようとする場合に直面する問題は
、高温高圧の容器に木材などの不連続な固体原料をいか
にして連続的に供給するかにおる。The problem faced when attempting to carry out blasting continuously is how to continuously supply a discontinuous solid raw material such as wood to a container at high temperature and high pressure.
この問題の解決策として、たとえば、特開昭60−81
385号公報には、スクリューコンパクターをフーイダ
ーとして使用して、圧密された木材チップなどのプラグ
成形品を、切刃を備えた開閉弁によって解砕しながら高
圧至に連続的に供給する技術が開示されている。As a solution to this problem, for example,
Publication No. 385 discloses a technology that uses a screw compactor as a feeder to continuously supply compacted plug molded products such as wood chips to high pressure while crushing them using an on-off valve equipped with a cutting blade. has been done.
この技術は、原料の連続供給を可能にした点に大きな進
歩がある反面、スクリューコンパクタ−は高圧系との間
に安定したシールを得るために過大な動力を必要とする
ことに加えて、操作上の安定性に欠けること、および機
械的溝造のうえからスケールアップが困難であること、
に問題が残されている。While this technology is a major advance in making it possible to continuously feed raw materials, screw compactors require excessive power to maintain a stable seal with the high-pressure system, and are difficult to operate. lack of stability above, and difficulty in scaling up after mechanical groove construction;
remains a problem.
[問題が解決しようとする問題点]
本発明の目的は、上記の問題点を解決し、繊維質材料の
供給系と高圧処理系とのシールに動力を使用せず、かつ
複雑なは械的構造の装置を必要とすることなく、従って
スケールアップが容易で、操作上の安定性の高い、半連
続的操作の可能な繊維質材料の多段式爆砕方法を提供す
ることにある。[Problems to be Solved] An object of the present invention is to solve the above-mentioned problems without using power for sealing between the fibrous material supply system and the high-pressure treatment system, and without using complicated mechanical methods. It is an object of the present invention to provide a multi-stage blasting method for fibrous materials that does not require structural equipment, is easy to scale up, has high operational stability, and can be operated semi-continuously.
発明の構成
[問題点を解決するための手段]
図面を参照して説明すると、本発明の繊維質材料の多段
式爆砕方法は、第1図に示すように、木材チップなどの
繊維質材料Fを高温高圧の水蒸気で蒸煮してから、急激
に圧力を解放することによりこの材料を爆砕し、繊維化
する方法において、複数の耐圧容器R1,R2,R3・
・・Rnを直列に配置して各容器間をバルブで接続して
なる装置を使用し、その第一段目の圧力容器R1に繊維
質材料Fを供給して所定の高温高圧の条件下に蒸煮した
のち、第二段目以降の圧力容器R2,R3・・・R1に
、差圧により順次移行させて圧力を段階的に降下させ、
最終段目の圧力容器R0から大気圧下にある容器に取出
すことからなり、上記の移行の間に爆砕を行なうことを
特徴とする。 第1図において、1は繊維質材料Fを貯
蔵するための散水ホッパーであって、材料Fに適度の湿
潤を与えるための散水ノズル11を備えている。散水ホ
ッパー1の底部には、材料Fを移送するための2基のフ
ィーダー2A、2Bが設置されており、各フィーダーは
2基のプレストレージホッパー3A。Structure of the Invention [Means for Solving the Problems] To explain with reference to the drawings, the multi-stage blasting method for fibrous materials of the present invention, as shown in FIG. In this method, a plurality of pressure-resistant containers R1, R2, R3,
・Using a device in which Rn are arranged in series and each container is connected with a valve, the fibrous material F is supplied to the first stage pressure container R1 and subjected to a predetermined high temperature and high pressure condition. After steaming, the pressure is sequentially transferred to the pressure vessels R2, R3, . . .
It consists of taking out the pressure vessel R0 of the final stage to a vessel under atmospheric pressure, and is characterized by performing blasting during the above transition. In FIG. 1, reference numeral 1 denotes a water sprinkling hopper for storing the fibrous material F, and is equipped with a water sprinkling nozzle 11 for imparting appropriate moisture to the material F. At the bottom of the watering hopper 1, two feeders 2A and 2B for transferring the material F are installed, and each feeder is connected to two pre-storage hoppers 3A.
3Bに、それぞれ電磁開閉バルブEVを介して接続して
いる。 2基のプレストレージホッパー3A、3Bは、
それ自体も圧力容器であって、ともに第一段目の圧力容
器R1に通じており、それぞれの系列から圧力容器R1
に対して交互に材料Fを供給できるようにしである。3B through electromagnetic on-off valves EV. The two pre-storage hoppers 3A and 3B are
Both are pressure vessels themselves, and both communicate with the first stage pressure vessel R1.
This allows material F to be supplied alternately to each other.
第一段目の圧力容器R1は、繊維質材料[を高温高圧下
で蒸煮するための容器であって、パイプラインによって
高圧スチームを圧入することができる。 圧力容器R1
の下には、順次第二、三・・・n段目の圧力容器R2,
R3・・・Rnが直列に接続配置され、各容器間は前記
と同様に電磁開閉バルブEVで仕切られている。 これ
らのバルブを開閉することにより、各圧力容器間を任意
に導通させることができる。The first-stage pressure vessel R1 is a vessel for steaming the fibrous material at high temperature and high pressure, and high-pressure steam can be forced into it through a pipeline. Pressure vessel R1
Underneath the pressure vessels R2, 2nd, 3rd... nth stage,
R3...Rn are connected and arranged in series, and each container is partitioned off by an electromagnetic opening/closing valve EV as described above. By opening and closing these valves, it is possible to arbitrarily establish electrical continuity between the respective pressure vessels.
最終段の圧力容器Rnは、それぞれ撹拌は61を備えた
2基のファイナルホッパー6A、6Bに接続されており
、圧力容器R1から放出された処理物Pを交互に受入れ
て、分離槽7に排出できるようにしである。The final stage pressure vessel Rn is connected to two final hoppers 6A and 6B each equipped with an agitation unit 61, and alternately receives the processed material P released from the pressure vessel R1 and discharges it to the separation tank 7. It is possible to do so.
図中、電磁開閉バルブEVは、既知のシーケンス制御シ
ステムにより、所定のタイムスケジュールにより順次自
動的に閉鎖させる。 各ホッパーおよび圧力容器には、
それぞれ必要な圧力計、温度計、ス1〜レージレベル計
、レベル表示調節計などを設けであることはもちろんで
ある。In the figure, the electromagnetic on-off valves EV are automatically closed one after another according to a predetermined time schedule by a known sequence control system. Each hopper and pressure vessel has
Needless to say, the necessary pressure gauges, thermometers, storage level gauges, level display controllers, etc. are provided.
第2図ないし第4図は、各種の圧力容器の@造を示す。Figures 2 to 4 show the construction of various pressure vessels.
第2図の圧力容器は、底部に田園状の境拌眼8Aを横
方向に設けたものであって、内部撹拌によって処理物の
ブリッジを壊しながら、下部ノズル9から処理物を排出
する。 これは、ブリッジを形成する度合が比較的低い
繊維質材料の処理に適する。 第3図の圧力容器は、下
部にスクリューコンベヤ8Bを設けたもので必って、排
出しにくい材料に適用する。 スクリューとしては、必
要があればツインスクリューを使用する。The pressure vessel shown in FIG. 2 has a rural-like agitation eye 8A installed laterally at the bottom, and discharges the processed material from the lower nozzle 9 while breaking the bridge of the processed material by internal stirring. This is suitable for processing fibrous materials with a relatively low degree of bridging. The pressure vessel shown in FIG. 3 is equipped with a screw conveyor 8B at the bottom and is therefore suitable for materials that are difficult to discharge. Twin screws are used if necessary.
第4図の圧力容器は、容器内にリボン状スクリュー8C
を縦に設けたものであって、処理物を内部撹拌しながら
押し下げることにより排出する。The pressure vessel shown in Fig. 4 has a ribbon-shaped screw 8C inside the vessel.
is installed vertically, and the processed material is discharged by pushing down while internally agitating it.
この装置は、排出難度がざらに高い材料に適する。This device is suitable for materials that are extremely difficult to discharge.
第1図に示す圧力容器R1,R2・・・Rnは、第3図
に示すタイプを使用した例である。The pressure vessels R1, R2, . . . , Rn shown in FIG. 1 are examples in which the type shown in FIG. 3 is used.
次に、第1図において、圧力容器をn=4、すなわち四
段に配置したときの爆砕方法について説明する。 なあ
、以下の説明で、圧力容器R1は「R1」、電磁開閉バ
ルブEVはバルブrEVJのように略記する。Next, in FIG. 1, an explanation will be given of an explosion method when the pressure vessels are arranged in n=4, that is, in four stages. In the following description, the pressure vessel R1 will be abbreviated as "R1" and the electromagnetic on-off valve EV will be abbreviated as valve rEVJ.
散水ホッパー1に貯蔵された繊維質材料Fは、フィーダ
ー2Aによりプレストレージホッパー3Aに所定量を移
送したのち、ホッパー下部のバルブEVを開け、第一段
目の容器R1に供給する。After a predetermined amount of the fibrous material F stored in the watering hopper 1 is transferred to the pre-storage hopper 3A by the feeder 2A, the valve EV at the bottom of the hopper is opened and the fibrous material F is supplied to the first stage container R1.
容器R1を密閉して高圧飽和水蒸気をパイプライン4か
ら圧入し、一定時間蒸煮したのち、容器R1の下部のバ
ルブEVを聞け、差圧により内容物を第二段目の容器R
2に噴出させる。After sealing the container R1 and pressurizing high-pressure saturated steam through the pipeline 4 and steaming it for a certain period of time, the valve EV at the bottom of the container R1 is turned on, and the contents are transferred to the second stage container R by pressure difference.
2 to squirt.
容器R1中の内容物がすべて容器R2に導入されたとこ
ろで容器R1のバルブEVを閉じ、第三段目の容器R3
に噴出させる。 このようにして、順次、各容器の内容
物を噴出させ、最後に容器R4の内容物をファイナルホ
ッパー6Aに噴出させる。When all the contents in container R1 have been introduced into container R2, the valve EV of container R1 is closed, and the third stage container R3 is opened.
to squirt. In this way, the contents of each container are sequentially ejected, and finally the contents of container R4 are ejected into the final hopper 6A.
処理内容物は、ファイナルホッパー6Aに達した時点で
、高温低圧(たとえば大気圧)の状態に置かれており、
ホッパ−6A上部のバルブEVを閉じ、大気圧下にある
分離槽7に排出される。When the processing contents reach the final hopper 6A, they are placed in a high temperature and low pressure (for example, atmospheric pressure) state,
The valve EV at the top of the hopper 6A is closed, and the hopper 6A is discharged into the separation tank 7 under atmospheric pressure.
以上の工程で、第一バッチの処理は完了するが、これと
並行して第二バッチの処理を行なう。With the above steps, the processing of the first batch is completed, and in parallel with this, processing of the second batch is performed.
すなわち、第一バッチの内容物が容器R2からR3に移
送された時点で、もう一つのプレストレージホッパー3
Bにあらかじめ供給されていた第二バッチの繊維質材料
が、容器R1に導入される。That is, when the contents of the first batch are transferred from container R2 to R3, another pre-storage hopper 3
A second batch of fibrous material, previously supplied in B, is introduced into container R1.
このとき、容器R1は密閉状態にあり、内部には第一バ
ッチ処理後の残圧が残っている。 そこで、プレストレ
ージホッパ−3B上部のバルブEVを閉じてフィーダー
2Bと遮断したのち、ホッパー3Bの上部と容器R1と
を結ぶ導通管のバルブ■を開けて、容器R1とホッパー
3Bとを均圧にしたのち、ホッパー3Bの下部のバルブ
EVを聞けると、繊維質材料Fは、自重により容器R1
内に導入される。 ついで、容器R1まわりのバルブV
およびEVをすべて閉じ、両者を密閉したのち、容器R
1に前記と同様に高圧飽和水蒸気を圧入する。 一方、
プレストレージホッパー3B内の残圧は、ファイナルホ
ッパー6Bを通じて分離槽7に開放する。At this time, the container R1 is in a sealed state, and residual pressure after the first batch processing remains inside. Therefore, after closing the valve EV at the top of the pre-storage hopper 3B to isolate it from the feeder 2B, open the valve ■ of the conduction pipe connecting the top of the hopper 3B and the container R1 to equalize the pressure between the container R1 and the hopper 3B. After that, when the valve EV at the bottom of the hopper 3B is turned on, the fibrous material F is pushed into the container R1 by its own weight.
be introduced within. Next, the valve V around the container R1
and EV, and after sealing both, container R
In the same manner as above, high-pressure saturated steam is injected into 1. on the other hand,
The residual pressure in the pre-storage hopper 3B is released to the separation tank 7 through the final hopper 6B.
第一バッチの内容物を容器R4からファイナルホッパー
6Aに噴出させると同時に、第二バッチの内容物を容器
R1からR2に噴出させる。 以下、第一バッチと同様
の操作を繰返す。The contents of the first batch are ejected from the container R4 to the final hopper 6A, and at the same time the contents of the second batch are ejected from the container R1 to R2. Hereafter, the same operation as the first batch is repeated.
第三バッチ以降の処理も同様であり、上記のくりかえし
によって半連続的な運転が継続される。The same applies to the third and subsequent batches, and semi-continuous operation is continued by repeating the above steps.
第一段目の容器R1で繊維質材料を処理する条件は、木
材チップ、わらなどの原料により異なるが、圧力は通常
20〜30KFI/ci・Gの範囲、温度はこの圧力に
応じたスチーム温度であるが、最終段の容器R0の圧力
が必要な圧力に達するように定めればよい。The conditions for processing the fibrous material in the first stage container R1 vary depending on the raw materials such as wood chips and straw, but the pressure is usually in the range of 20 to 30 KFI/ci・G, and the temperature is the steam temperature corresponding to this pressure. However, the pressure in the final stage container R0 may be determined so as to reach the required pressure.
[作 用]
本発明の方法においては、高温高圧下で蒸煮された繊維
質材料は、各系毎に仕切られた圧力容器の間のバルブの
開閉操作によって、高圧系から低圧系へと順次、断熱的
に噴出し、それにつれて圧力が段階的に、しかし急激に
降下する。 このような圧力の段階的急変を繰り返す間
に、被処理物表面からの蒸発と物資内部からの水分の急
激な体積膨張(ブツシュアウト)がひき起されて、材料
の物理的および化学的変化が起り、その粉砕、繊維化が
達成される。[Function] In the method of the present invention, the fibrous material steamed under high temperature and high pressure is sequentially transferred from the high pressure system to the low pressure system by opening and closing the valves between the pressure vessels partitioned into each system. It erupts adiabatically, and the pressure drops step by step but rapidly. While repeating such gradual and sudden changes in pressure, evaporation from the surface of the material to be treated and rapid volumetric expansion of water from inside the material (bunchout) occur, causing physical and chemical changes in the material. , its crushing and fiberization are achieved.
一方、被処理物に与えられた最初の熱量は、従来の高圧
から大気圧への一段放圧式とは異なった逐次的な断熱変
化が行なわれるためそれ自体熱損失が少なく、しかも一
部は残圧として利用できるから、有効に消費される。
多段操作の最終段階では低圧の状態となっていて、被処
理物の系外への取出しは容易である。On the other hand, the initial amount of heat given to the object to be processed undergoes a sequential adiabatic change, which is different from the conventional one-step pressure release method from high pressure to atmospheric pressure, so there is little heat loss per se, and some of it remains. Since it can be used as pressure, it is effectively consumed.
At the final stage of the multi-stage operation, the pressure is low, and it is easy to remove the material to be processed from the system.
本発明の方法のもっとも大ぎな利点は、被処理物の供給
系と高圧処理系との間において、高圧シールのためには
単なる仕切弁(電磁開閉バルブ)が存在すればよく、従
来のような高い動力を必要としないことでおる。 これ
によって、復雑な機械的描込の装置も必要がなく、装置
のスケールアップも容易になる。The most significant advantage of the method of the present invention is that a simple gate valve (electromagnetic on-off valve) is required between the supply system of the processed material and the high-pressure treatment system for high-pressure sealing, which eliminates the need for the conventional method. This is achieved by not requiring high power. This eliminates the need for complicated mechanical drawing equipment and facilitates scale-up of the equipment.
[実施例]
第1図において、四段の容器R1〜R4を用いて、常温
の木材チップ(含水率20%>10Kgを、第一段目の
容器R1において30に3/cut−G、 235℃で
5分間蒸煮したのち、順次R2→R4と降圧させ、爆砕
を行なった。 各容器R1〜R4およびプレス1〜レー
ジホッパー3△、3Bとファイナルホッパー6A、6B
は、それぞれ容量50gのものを使用した。[Example] In Fig. 1, using four stages of containers R1 to R4, wood chips at room temperature (moisture content 20% > 10 kg) were cut into 30/cut-G in the first stage container R1, 235 After steaming at ℃ for 5 minutes, the pressure was sequentially lowered from R2 to R4 and exploded. Each container R1 to R4, press 1 to range hopper 3△, 3B, and final hopper 6A, 6B.
used, each having a capacity of 50 g.
この各爆砕ステップでの操作例と、そのときの各容器R
1〜R4およびホッパー3A、3B、6A、6Bの圧力
と温度を表に示す。Examples of operations in each blasting step and each container R at that time
The pressures and temperatures of 1 to R4 and hoppers 3A, 3B, 6A, and 6B are shown in the table.
ステップ1は、前のステップで30に3/car・G、
235°Cで5分間蒸煮された材料を、容器R1から容
器R2に向は爆砕した段階での、各容器の圧力と温度の
状況を示している。 このステップでは、一方、容器R
4からファイナルホッパー6Bへの払い出しという、前
のバッチの操作も平行して行なわれている。 なお、容
器R3はこのとき7.5KFl/cm・Gの残圧を有し
て仕切られている。Step 1 is 3/car G to 30 in the previous step,
The pressure and temperature conditions in each container are shown at the stage when the material that has been steamed at 235° C. for 5 minutes is exploded from container R1 to container R2. In this step, on the other hand, the container R
The operation of the previous batch, ie, the discharging from 4 to the final hopper 6B, is also being carried out in parallel. Note that the container R3 is partitioned at this time with a residual pressure of 7.5 KFl/cm.G.
ステップ2は、容器R2から容器R3への爆砕が行なわ
れた段階であって、これに平行して、プレストレージホ
ッパー3Bから容器R1への材料の供給という、次のバ
ッチの操作も行なわれている。Step 2 is a stage in which blasting from container R2 to container R3 has been performed, and in parallel, the next batch operation of supplying material from prestorage hopper 3B to container R1 is also performed. There is.
ステップ3は、容器R3から容器R4への爆砕の段階で
、一方、次のバッチに対しては、容器R1に導入された
材料に30に’l/cvr・Gスチームが供給され、蒸
煮が行なわれている。Step 3 is the stage of blasting from container R3 to container R4, while for the next batch, 30'l/cvr.G steam is supplied to the material introduced into container R1 and steaming is carried out. It is.
ステップ4はステップ1の繰り返しである。Step 4 is a repeat of step 1.
この表に見られるように、容器R1から容器R2に爆砕
が行なわれたあと、容器R1は22゜5 K’l /
ci・Gの残圧を有していて、これが次の蒸煮処理のス
チーム聞を削減するのに有効に寄与する。 単段式の爆
砕でおれば、容器R1内の圧力は大気圧であるから、常
温の含水木材チップ10Kgを蒸煮処理するのに30に
3/crj−Gスチームが約2に’J必要であるが本発
明のように容器R1内に22、5KFJ/aM−Gの残
圧がある場合には、それが常温の含水チップを100’
C程度にまで高めるのに貢献するので、30に3/cr
i・Gスチームは約1.5Kgで足り、約25%のスチ
ームの節減となる。As seen in this table, after the blasting of container R1 to container R2, container R1 is 22°5 K'l/
It has a residual pressure of ci·G, which effectively contributes to reducing the steam requirement for the next steaming process. In the case of single-stage blasting, the pressure inside the container R1 is atmospheric pressure, so approximately 2 J of 30/crj-G steam is required to steam 10 kg of water-containing wood chips at room temperature. However, if there is a residual pressure of 22.5 KFJ/aM-G in the container R1 as in the present invention, it will cause the water-containing chips at room temperature to
It contributes to raising the level to C level, so 3/cr to 30
Approximately 1.5 kg of i/G steam is sufficient, resulting in approximately 25% steam savings.
なお、上記の実施例のほか、本発明方法では、各容器の
圧力や温度などの条件を、その前回の処理条件と同じに
設定したり、または全く別にするなど、多種多用な組み
合わせが可能である。In addition to the above embodiments, the method of the present invention allows for a wide variety of combinations, such as setting the pressure and temperature of each container to the same conditions as the previous processing conditions, or setting them completely different. be.
その際、できるだけ残圧の有効利用ができる条件を、処
理する繊維質材料の性状および必要な容器容量の段数と
から、実験的に定めればよい。In this case, the conditions under which the residual pressure can be used as effectively as possible may be determined experimentally from the properties of the fibrous material to be treated and the number of stages of the required container capacity.
発明の効果
本発明の多段式爆砕方法に従うと、熱損失を少なくして
爆砕の効果をめげることができる。 すなわち、第一段
の容器で高温高圧化された繊維質材料は、以下順次断熱
的に圧力変化を受け、その度に爆砕される。 圧力変化
自体熱損失が少ない上に、その残圧を次回の処理に利用
でき、一層エネルギーを節約することができる。 材料
の供給は常圧で行なわれるから、高圧系とのシールに動
力を必要とせず、爆砕処理に使用する容器も耐圧構造の
簡単なもので足り、スケールアップも容易である。Effects of the Invention According to the multi-stage blasting method of the present invention, the effect of blasting can be reduced by reducing heat loss. That is, the fibrous material heated to high temperature and high pressure in the first-stage container is successively subjected to pressure changes in an adiabatic manner, and is exploded each time. Not only does the pressure change itself cause little heat loss, but the residual pressure can be used for the next treatment, further saving energy. Since the material is supplied at normal pressure, no power is required to seal with the high pressure system, and the container used for the blasting process can be of a simple pressure-resistant structure, making it easy to scale up.
多段の容器を使用することによって、温度、圧力などの
操作条件を任意に組み合わせて、繊維質材料の性状に応
じた最適の爆砕条件を設定することができる。By using multistage containers, it is possible to arbitrarily combine operating conditions such as temperature and pressure to set optimal blasting conditions according to the properties of the fibrous material.
第1図は、本発明の方法を実施する多段式爆砕装置の一
例を示す説明図である。
第2図、第3図および第4図は、いずれも第1図の装置
に使用する圧力容器の諸態様について、その構造を示す
説明図でおる。
1・・・散水ホッパー
2A、2B・・・フィーダー
3A、3B・・・プレストレージタンク4.5・・・パ
イプライン
6A、6B・・・ファイナルホッパー
7・・・分離櫓
RnR2,R3・・・Rrl・・・圧力容器。FIG. 1 is an explanatory diagram showing an example of a multi-stage blasting apparatus for carrying out the method of the present invention. FIGS. 2, 3, and 4 are explanatory diagrams showing the structure of various aspects of the pressure vessel used in the apparatus shown in FIG. 1. 1... Watering hopper 2A, 2B... Feeder 3A, 3B... Pre-storage tank 4.5... Pipeline 6A, 6B... Final hopper 7... Separation tower RnR2, R3... Rrl...pressure vessel.
Claims (1)
圧力を解放することによりこの材料を爆砕する方法にお
いて、複数の耐圧容器R_1、R_2、R_3・・・R
_nを直列に配置して各容器間をバルブで接続してなる
装置を使用し、その第一段目の圧力容器に繊維質材料を
供給して所定の高温高圧の条件下に蒸煮したのち、第二
段目以降の圧力容器R_2、R_3・・・R_nに、差
圧により順次移行させて圧力を段階的に降下させ、最終
段の圧力容器R_nから大気圧下にある容器に取出すこ
とからなり、上記の移行の間に爆砕を行なうことを特徴
とする繊維質材料の多段式爆砕方法。In a method in which a fibrous material is steamed in high-temperature, high-pressure steam and then exploded by rapidly releasing the pressure, a plurality of pressure-resistant containers R_1, R_2, R_3...R
Using a device consisting of __n arranged in series and connecting each container with a valve, the fibrous material is supplied to the first stage pressure vessel and steamed under predetermined high temperature and high pressure conditions. The pressure is sequentially transferred to the pressure vessels R_2, R_3...R_n in the second and subsequent stages by differential pressure, and the pressure is lowered step by step, and the pressure is taken out from the final stage pressure vessel R_n to a vessel under atmospheric pressure. , a multi-stage blasting method for fibrous materials, characterized in that blasting is carried out during the above transition.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24685586A JPS63105195A (en) | 1986-10-17 | 1986-10-17 | Multistage explosion grinding of fibrous material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24685586A JPS63105195A (en) | 1986-10-17 | 1986-10-17 | Multistage explosion grinding of fibrous material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63105195A true JPS63105195A (en) | 1988-05-10 |
Family
ID=17154719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24685586A Pending JPS63105195A (en) | 1986-10-17 | 1986-10-17 | Multistage explosion grinding of fibrous material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63105195A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH038881A (en) * | 1989-05-11 | 1991-01-16 | Convertech Group Ltd | Process, system and apparatus for hydrolyzing lignocellulosic material and product obtained by said process |
JP2018083876A (en) * | 2016-11-22 | 2018-05-31 | 牧 恒雄 | Production method of woody composite resin material and woody composite resin material |
JP2019209282A (en) * | 2018-06-06 | 2019-12-12 | 株式会社Ihi | Steam blasting device and steam blasting system provided with the same |
-
1986
- 1986-10-17 JP JP24685586A patent/JPS63105195A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH038881A (en) * | 1989-05-11 | 1991-01-16 | Convertech Group Ltd | Process, system and apparatus for hydrolyzing lignocellulosic material and product obtained by said process |
JP2018083876A (en) * | 2016-11-22 | 2018-05-31 | 牧 恒雄 | Production method of woody composite resin material and woody composite resin material |
JP2019209282A (en) * | 2018-06-06 | 2019-12-12 | 株式会社Ihi | Steam blasting device and steam blasting system provided with the same |
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