JPS62191590A - Method for refining fiber material - Google Patents
Method for refining fiber materialInfo
- Publication number
- JPS62191590A JPS62191590A JP2745087A JP2745087A JPS62191590A JP S62191590 A JPS62191590 A JP S62191590A JP 2745087 A JP2745087 A JP 2745087A JP 2745087 A JP2745087 A JP 2745087A JP S62191590 A JPS62191590 A JP S62191590A
- Authority
- JP
- Japan
- Prior art keywords
- grinding
- fibrous material
- steam
- refiner
- space
- 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 29
- 238000007670 refining Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 8
- 238000000227 grinding Methods 0.000 claims description 34
- 238000003801 milling Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 description 1
- 101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/22—Jordans
Landscapes
- Paper (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Artificial Filaments (AREA)
- Crushing And Pulverization Processes (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
有する装置即ちリファイナー中で繊維材料をリファイニ
ングする(精練する)方法に関する。先ず第1に、TI
VfP、 CTMP、 CMP又は高収率ノルゾ又は言
わゆるメカニカルパルプを製造する別の方法により、細
末にした繊維材料例えばノξルプテツゾのリファイニン
グが意図される。更に詳しく言えば本発明は繊維材料の
りファイニング中のエネルギー消費を低下させるために
複数行われる作用の組合せに関し、何故ならば不法を用
いるとエネルギーの転換はきわめて高く、リファイニン
グ段階につきパルプ7トン当り大体t o o o K
Whの大きさのエネルギー転換を有し即ち2段階でのリ
ファイニングを行なうと生産したノにルプ/トン当り全
部で大体2000KWhの大きさを有するからである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for refining fibrous material in an apparatus having a refiner. First of all, T.I.
Refining of the pulverized fiber material, such as pulverulent material, by VfP, CTMP, CMP or other processes for producing high-yield or so-called mechanical pulps is contemplated. More particularly, the invention relates to a combination of actions to reduce the energy consumption during refining of fiber materials, since the energy conversion is very high when using fibrous materials, and the amount of pulp per refining stage is 7 tons per refining stage. The hit is about t o o o K
This is because it has an energy conversion of the magnitude Wh, ie with a two-stage refining it has a total of approximately 2000 KWh per tonne produced.
このエネルギー量の小部分のみをそのま\砕解作業に用
い、然るにエネルギー量の主要な大部分は繊維材料中の
湿分及び場合によってはスチームに添加した液体を移送
するのに消費される。リファイナーの摩砕空間に生じた
スチームはそのま\では望ましくない容積を占め何故な
らば摩砕空間に存在する圧力でのスチームは摩砕空間を
通って繊維材料が自然に通行するのをより困難とさせ且
つ址た摩砕帯域における繊維材料の保留時間を減少させ
るからである。Only a small portion of this amount of energy is used directly for the disintegration operation, whereas the major part of the amount of energy is consumed in transporting the moisture in the fiber material and optionally the liquid added to the steam. The steam produced in the milling space of the refiner would otherwise occupy an undesirable volume, since the steam at the pressure present in the milling space would make it more difficult for the fiber material to naturally pass through the milling space. This is because it reduces the retention time of the fibrous material in the milling zone.
か\る理由で本発明の主目的は以下に詳述する複数作用
の組合せによってソファイニング処理中のエネルギー転
換を低下させることである。For this reason, the main objective of the present invention is to reduce the energy conversion during the sofaning process by a combination of actions detailed below.
摩砕空間における所望の相対的な移動を達成するだめに
両方の摩砕表面が移動している複数のリフアイナーがあ
るとしても、次の例ではステーター(固定子)と呼ばれ
る固定部分とローター(回転子)と呼ばれる隣接可動部
分とを有するリファイナーのみを包含するものである。Even though there are multiple refiners with both grinding surfaces moving to achieve the desired relative movement in the grinding space, in the following example a fixed part called the stator and a rotor (rotating It only includes refiners that have adjacent movable parts called children.
第1のエネルギー節約作用は、回転部分(rpm)を主
として従来と同じに保持するがローター及びステーター
での切削部材の個数を大幅に減少させることにまり摩砕
度数(grinding frequency)を大幅
に低下させることになる。The first energy-saving effect is to keep the rotating parts (rpm) primarily the same as before but significantly reduce the number of cutting elements in the rotor and stator, which significantly reduces the grinding frequency. I will let you do it.
第2のエネルギー節約作用として、摩砕度数の低下を一
部相殺するために、リファイナーの容積を同時に増大さ
せ即ち摩砕部材同志の間にある繊維材料の保留時間を増
大させる。半径方向に指向した摩砕空間のみを有するデ
ィスク、リファイナーを用いると成る回転数で繊維材料
に作用する遠心力により摩砕帯域の直径については制限
があるので、代シに摩砕空間を円筒形又は幾分円錐形と
することにより摩砕帯域の容積を増大させ得る。A second energy-saving effect is to simultaneously increase the volume of the refiner, ie, increase the retention time of the fibrous material between the grinding members, to partially offset the reduction in grinding frequency. Since there is a limit on the diameter of the attrition zone due to the centrifugal force acting on the fiber material at the rotational speed when using a disc refiner with only a radially oriented attrition space, it is preferable to make the attrition space cylindrical. Alternatively, the volume of the grinding zone can be increased by a somewhat conical shape.
この様にして摩砕帯域の直径を適当な範囲内に保時でき
然るに同時に摩砕帯域の長さを増大させ得る。In this way, the diameter of the grinding zone can be kept within a suitable range while at the same time increasing the length of the grinding zone.
第3のエネルギー節約作用として、摩砕度数の低下をま
た一部補償するためにエネルギー消費を低下させる目的
で、スチームが未だ摩砕空間に存在している間に粉砕空
間で生じたスチームを出来るだけ多く放出させてリファ
イナー〇摩砕表面が繊維材料に接近容易となるのを同上
させこれによって摩砕帯域にそのま\繊維材料が滞留す
る保持時間を増大させる。As a third energy-saving effect, the steam generated in the grinding space can be removed while the steam is still present in the grinding space, with the aim of lowering the energy consumption to also partially compensate for the reduction in the grinding frequency. This increases the ease with which the fibrous material is accessible to the refiner's grinding surface, thereby increasing the retention time during which the fibrous material remains in the grinding zone.
か\る訳で摩砕部材の形状設計に関して多くの調査、開
発研究が成されており、最も普通の最新の摩砕機では摩
砕部基が多大の応力及び摩耗に暴露されるので摩砕部材
は交換可能としである。カナダ特許第り0/I37号明
細書には、出来るだけ有効な摩砕を得るために溝(gr
oove ) 又は棒体に関して種々の形状を有する
円盤(ディスク)形並びに円錐形の摩砕分節片の例が示
されている。For this reason, much research and development research has been carried out regarding the shape design of the grinding member. are interchangeable. Canadian Patent No. 0/137 discloses that grooves (gr.
Examples of disc-shaped as well as cone-shaped grinding segments are shown having various shapes with respect to oove) or rods.
ディスク、す7アイナーについて別の形状は米国特許第
3.ざ/j、8j3弘号明細書に記載されており、該米
国特許からはより小さなディスク直径の溝は比較的大き
な間隔を看いて離して設けられており、溝同志の間隔は
ディスクの周縁から離れるに従って段々と小さくなるこ
とが明らかに見られる。摩砕度数については、摩砕表面
の周縁にある構の個数を乗じた/秒尚シのローター回転
数を意味する。Alternative shapes for the disc and the seven eyener are described in U.S. Patent No. 3. The grooves of the smaller disk diameter are spaced apart by a relatively large distance, and the grooves are spaced apart from each other by a relatively large distance from the periphery of the disk. It is clearly seen that the distance becomes smaller and smaller. By milling frequency we mean the number of rotor revolutions per second multiplied by the number of structures on the periphery of the milling surface.
7分当り/!;00〜1000 回転のローター回転
数が普通と考えられ、これは乙000−200θOH2
の大きさの度数を与える。7 minutes/! A rotor rotation speed of 00 to 1000 rotations is considered normal, and this is Otsu000-200θOH2
gives the degree of the magnitude of.
本発明の方法を用いると、ローターのl板速度を維持し
ながら且つ切削部材のローター及びステーク−個数を通
常の弘OO〜乙OO個から20〜30個に減少させなか
ら摩砕度数を大体300〜100Hzに低下させるなら
ばエネルギーの消費量をかなシ大幅に低下させることが
でき、有利な場合には消費量を半分以下に低下させ得る
ことを見出した。By using the method of the present invention, the number of rotors and stakes of cutting members can be reduced from the usual 20 to 30 pieces while maintaining the plate speed of the rotor, and the degree of grinding can be approximately reduced. It has been found that if the frequency is lowered from 300 to 100 Hz, the energy consumption can be reduced considerably, and in advantageous cases by more than half.
しくけ幾分円鉋しに作シ上げることにより摩砕空間の容
積を増大させる即ち摩砕部材同志の間の保留時間を増大
させるのが必要である。これによりディスク、リファイ
ナーで従来可能であったよりも大きな程度にまでリファ
イナーを通る即ち円錐形表面に沿っての繊維材料経路を
増大させることができ、何故なら前記した如く摩砕帯域
の直径を余り大きく増大させるのは望ましくないからで
ある。It is necessary to increase the volume of the grinding space by making the grinding machine more or less circular, that is to say to increase the holding time between the grinding members. This allows the fiber material path through the refiner, i.e. along the conical surface, to be increased to a greater extent than was previously possible with disc refiners, since, as mentioned above, the diameter of the attrition zone can be made too large. This is because it is undesirable to increase it.
本発明によりリファイナー内での繊維材料の保留時間を
更に増大させるためには、発生したスチームを連続的に
且つ主としてロータ一孔の長さに沿って抜出す。これに
よってチップ−繊維−水一スチーム混合物の圧縮率を減
少させるために出来るだけ完全にスチームの分離が成さ
れるべきであり、このスチーム分離はチップ及び繊維に
対する供給剪断力の方向に有効に寄与する。In order to further increase the retention time of the fibrous material in the refiner according to the invention, the generated steam is extracted continuously and primarily along the length of the rotor bore. This should result in as complete a separation of the steam as possible in order to reduce the compressibility of the chip-fiber-water-steam mixture, and this steam separation should contribute effectively to the direction of the applied shear force on the chips and fibers. do.
リファイナーの摩砕帯域からスチームを有効に抜出すこ
とは長期間工業的に問題となっていた。Effective extraction of steam from the grinding zone of a refiner has long been an industrial problem.
例えばスチーム抜出しの7例としてカナダ特許第107
り!jタ 号明細書に示される所によれば、溝の他に摩
砕部材は摩砕空間からのスチーム及び後続の繊維材料を
摩砕部材の裏側にまで適当に導通する開孔を備えている
。For example, Canadian Patent No. 107 as seven examples of steam extraction.
the law of nature! In addition to the grooves, the grinding element is provided with openings which suitably conduct the steam from the grinding space and the subsequent fibrous material to the back side of the grinding element. .
本発明によると、摩砕空間で生じたスチームの大部分に
摩砕帯域から連行されしかも更に場合によっては後続の
繊維材料の主要部分からもきれいに抜出される。According to the invention, the steam generated in the milling space is largely entrained from the milling zone and, if necessary, is also cleanly extracted from the main part of the subsequent fiber material.
しかる後にスチームは繊維材料の取出し口とは別個に設
けた1個又はそれ以上のスチーム出口を通してリファイ
ナーから連行される。抜出されるスチームの量はスチー
ム出口と繊維材料取出し口との間で適当な圧力差を保持
することにより更に調整される。Steam is then entrained from the refiner through one or more steam outlets separate from the fiber material outlet. The amount of steam withdrawn is further regulated by maintaining a suitable pressure differential between the steam outlet and the fiber material outlet.
Claims (1)
であつて繊維材料が互いに相対的に移動する摩砕表面同
志の間の摩砕空間を通過するリフアイナー中で繊維材料
例えば湿つた木材チップの混合物又は懸濁物をリフアイ
ニングしてそのエネルギー消費を低下させる方法におい
て、次の工程即ち (イ)大体1000〜1500rpmの通常の回転速度
を維持しながら通常は大体400〜600個の切削部材
の個数を例えば大体20〜30個に減少させることによ
り繊維材料の摩砕度数を通常大体6000〜20000
Hzから大体300〜800Hzに至るまで低下させる
工程と、(ロ)摩砕部材の直径を減少させることなく摩
砕空間の容積をより大きくさせ得るために摩砕表面を円
錐形又は円筒形とすることにより摩砕度数の低下により
減損した摩砕回数を相殺するために摩砕空間における繊
維材料の保留時間を増大させる工程と、 (ハ)摩砕空間における繊維材料の保留時間を増大させ
て摩砕度数の低下により減損した摩砕回数を相殺するた
めに更に、繊維材料に続いての液体からエネルギー転換
によつて遊離したスチームを摩砕空間から連続的に且つ
半径方向に放出させる工程とを組合せることを特徴とす
る繊維材料のリフアイニング法。 2、摩砕空間から放出されたスチームはスチームに続い
ての主として全ての繊維材料からリフアイナー内で遊離
させ、該スチームは繊維材料の取出口とは別個の少なく
とも1個のスチーム出口を通してリフアイナーから抜出
し、リフアイナーから放出されるスチーム量はスチーム
出口と繊維材料取出口との間で適当な圧力差を保持する
ことにより調節する特許請求の範囲第1項記載の方法。[Scope of Claims] 1. A refiner having an inlet and an outlet for fibrous material, in which the fibrous material passes through a grinding space between grinding surfaces in which the fibrous material moves relative to each other. For example, in a method of refining a wet wood chip mixture or suspension to reduce its energy consumption, the following steps are carried out: (a) maintaining a normal rotational speed of approximately 1000 to 1500 rpm, typically approximately 400 to 600 rpm; By reducing the number of cutting elements to, for example, approximately 20 to 30, the degree of grinding of the fibrous material is usually reduced to approximately 6,000 to 20,000.
(b) making the grinding surface conical or cylindrical in order to allow a larger volume of the grinding space without reducing the diameter of the grinding member; (c) increasing the holding time of the fibrous material in the grinding space to offset the number of grindings lost due to a decrease in the grinding frequency; and (c) increasing the holding time of the fibrous material in the grinding space to In order to compensate for the number of millings lost due to a decrease in the milling frequency, a further step is provided in which the steam liberated by energy conversion from the liquid subsequent to the fibrous material is discharged continuously and radially from the milling space. A refining method for fiber materials characterized by combining. 2. The steam released from the grinding space is liberated in the refiner from mainly all the fibrous material following the steam, and the steam is extracted from the refiner through at least one steam outlet separate from the outlet for the fibrous material. 2. The method of claim 1, wherein the amount of steam released from the refiner is regulated by maintaining a suitable pressure difference between the steam outlet and the fiber material outlet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8600582-4 | 1986-02-11 | ||
SE8600582A SE463821B (en) | 1986-02-11 | 1986-02-11 | PROCEDURE TO REDUCE ENERGY CONSUMPTION BY REFINING A MIXTURE OR SUSPENSION OF FIBER MATERIAL |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62191590A true JPS62191590A (en) | 1987-08-21 |
Family
ID=20363417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2745087A Pending JPS62191590A (en) | 1986-02-11 | 1987-02-10 | Method for refining fiber material |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS62191590A (en) |
AT (2) | AT389902B (en) |
BR (1) | BR8700553A (en) |
CA (1) | CA1280019C (en) |
DE (1) | DE3701315A1 (en) |
FI (1) | FI89514C (en) |
FR (1) | FR2594151B1 (en) |
NO (1) | NO170163C (en) |
SE (1) | SE463821B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19543310C2 (en) * | 1995-11-21 | 2000-03-23 | Herzog Stefan | Process for the preparation of an organic thickening and suspension aid |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5777382A (en) * | 1980-09-08 | 1982-05-14 | Cell Dev Inc | Method and apparatus for grinding lignocellulose containing material |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA901857A (en) * | 1972-06-06 | Pilao Acos E Refinadores Limitada | Method for producing and recovering conic refiners for wood pulps in the paper industry | |
SE362671B (en) * | 1972-05-09 | 1973-12-17 | Sca Project Ab | |
CA1070536A (en) * | 1977-06-08 | 1980-01-29 | John B. Matthew | High temperature low consistency refining of thermo-mechanical pulp |
SE418309B (en) * | 1977-09-30 | 1981-05-18 | Sca Development Ab | SET AND DEVICE FOR REFINING FIBER MATERIAL IN A DISC REFINER |
SE420226B (en) * | 1980-02-27 | 1981-09-21 | Sunds Defibrator | SET AND DEVICE FOR SEPARATION OF CELLULOSAMATER MATERIALS TREATED IN A REFINER |
SE427759B (en) * | 1981-10-16 | 1983-05-02 | Sca Development Ab | WANT TO REDUCE ENERGY CONSUMPTION, POSSIBLE HIGH ROTATION SPEEDS AND IMPROVE MASS QUALITY BY MECHANICAL PROCESSING OF CELLULOSIC MATERIAL IN MALA APPLIANCES AND DEVICE IMPLEMENTATION DEVICE |
-
1986
- 1986-02-11 SE SE8600582A patent/SE463821B/en not_active IP Right Cessation
-
1987
- 1987-01-17 DE DE19873701315 patent/DE3701315A1/en active Granted
- 1987-01-20 AT AT0009987A patent/AT389902B/en not_active IP Right Cessation
- 1987-01-21 NO NO870248A patent/NO170163C/en unknown
- 1987-01-28 FI FI870363A patent/FI89514C/en not_active IP Right Cessation
- 1987-01-29 FR FR8701077A patent/FR2594151B1/en not_active Expired - Fee Related
- 1987-02-06 BR BR8700553A patent/BR8700553A/en not_active IP Right Cessation
- 1987-02-10 CA CA000529361A patent/CA1280019C/en not_active Expired - Lifetime
- 1987-02-10 JP JP2745087A patent/JPS62191590A/en active Pending
-
1989
- 1989-07-16 AT AT752/89A patent/AT391154B/en not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5777382A (en) * | 1980-09-08 | 1982-05-14 | Cell Dev Inc | Method and apparatus for grinding lignocellulose containing material |
Also Published As
Publication number | Publication date |
---|---|
NO170163C (en) | 1994-12-08 |
AT391154B (en) | 1990-08-27 |
DE3701315C2 (en) | 1989-07-06 |
FI870363A (en) | 1987-08-12 |
FI89514C (en) | 1993-10-11 |
NO870248L (en) | 1987-08-12 |
BR8700553A (en) | 1987-12-08 |
FR2594151B1 (en) | 1992-10-09 |
FI870363A0 (en) | 1987-01-28 |
ATA9987A (en) | 1989-07-15 |
DE3701315A1 (en) | 1987-08-13 |
AT389902B (en) | 1990-02-26 |
SE463821B (en) | 1991-01-28 |
SE8600582D0 (en) | 1986-02-11 |
CA1280019C (en) | 1991-02-12 |
NO870248D0 (en) | 1987-01-21 |
SE8600582L (en) | 1987-08-12 |
NO170163B (en) | 1992-06-09 |
ATA75289A (en) | 1990-02-15 |
FR2594151A1 (en) | 1987-08-14 |
FI89514B (en) | 1993-06-30 |
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