JPH055957B2 - - Google Patents

Description

【発明の詳細な説明】 イ 発明の目的 （産業上の利用分野） 本発明は製紙業界に於いて原料、特に故紙や耐
湿損紙等の溶解離精選に用いるパルパーと分離補
助パルパーと複合スクリーンとを集中して組合わ
せた装置。詳しくは、パルパー槽に供給された原
料中の難溶解離物質（非繊維物質及び難溶解性紙
料）と有用繊維物質とを、内周と外周に区分して
ストレーナに設けた粗目孔と細目孔とにより選別
して排出させ、その難溶解離物質は分離補助パル
パーへ送り、溶解難と洗浄により難溶解離性物質
中の有用繊維物質を分離して回収し、不良物質を
系外に廃棄させてパルパーの安定した操業を可能
にすると共に、有用繊維物質は複合式スクリーン
へ送り、二種のストレーナにより二重精選を施し
て、有用繊維の無駄をなくし、精選度の高い良質
の紙料を得て、安定した生産を行わせる装置に関
する。DETAILED DESCRIPTION OF THE INVENTION A. Purpose of the invention (industrial application field) The present invention relates to a pulper, a separation auxiliary pulper, and a composite screen used in the dissolution and separation of raw materials, especially waste paper and moisture-proof paper, etc. in the paper manufacturing industry. A device that intensively combines the following. Specifically, the coarse holes and fine holes provided in the strainer are used to separate the difficult-to-dissolve substances (non-fibrous substances and difficult-to-dissolve stock) and useful fiber substances in the raw materials supplied to the pulper tank into inner and outer circumferences. The difficult-to-dissolve materials are sorted and discharged through the holes, and the difficult-to-dissolve materials are sent to a separation auxiliary pulper. Useful fiber materials from among the difficult-to-dissolve materials are separated and recovered by difficult-to-dissolve and washed, and defective materials are disposed of outside the system. In addition to enabling stable operation of the pulper, useful fiber materials are sent to a composite screen and double-selected using two types of strainers to eliminate waste of useful fibers and produce highly selected, high-quality paper stock. The present invention relates to a device that allows for stable production.

（従来の技術） 従来、製紙業界に於いて故紙、耐湿損紙等の原
料を溶解離するパルパーとして、ストレーナの形
状と目孔の大きさを部分的に変化させて、溶解離
の性能を向上させたものは、本考案者の発明によ
り、特開平１−213490号公報として出願されてお
り、このものは、図面第２図に示すように処理原
料を容入する槽１の底部に、粗目孔５の内周域ａ
と、細目孔６の外周域ｂとに区分形成して、その
内周域ａを凹没させたストレーナ４設け、該スト
レーナ４に動力２により回転させる撹拌インペラ
３を近接配置し、前記ストレーナ４の下流側に内
周域ａと、外周域ｂとに各別に連通する２つの室
８と９を設けた構成のもので、この構成により、
難吸水性の耐湿紙や非繊維物の難溶解離物質は、
インペラ３により起こされる縦回流に乗つて上層
部へ浮上して、ロータ中心へ向かつて流下する現
象を利用し、難溶解離物質をストレーナの凹没す
る内周域へ導入し、粗目孔から槽外に排出され
て、槽内に長く回流停滞させないようにしたた
め、これが細枠されて有用繊維質物に混入して、
その品質を低下することがない。(Prior technology) Conventionally, in the paper manufacturing industry, pulpers were used to dissolve and separate raw materials such as waste paper and moisture-resistant paper, and the shape and hole size of the strainer were partially changed to improve the performance of dissolution and separation. This is an invention of the present inventor and has been filed as Japanese Patent Application Laid-Open No. 1-213490, and as shown in Fig. Inner peripheral area a of hole 5
A strainer 4 is provided which is divided into an outer peripheral area b of the narrow hole 6 and a recessed inner peripheral area a of the strainer 4, and a stirring impeller 3 rotated by a power 2 is disposed adjacent to the strainer 4. It has a configuration in which two chambers 8 and 9 are provided on the downstream side of the chamber, which communicate with the inner circumferential area a and the outer circumferential area b, respectively, and with this configuration,
Difficult-to-dissolve materials such as moisture-resistant papers and non-fibrous materials that are difficult to absorb water are
Utilizing the phenomenon that the material floats to the upper layer on the longitudinal flow caused by the impeller 3 and flows down toward the center of the rotor, the difficult-to-dissolve material is introduced into the concave inner circumferential region of the strainer, and is introduced into the tank through the coarse holes. In order to prevent it from being discharged outside and stagnating in circulation for a long time in the tank, it is narrowly framed and mixed with useful fibrous materials.
There is no reduction in quality.

ストレーナの凹没する内周域へ導入した難溶解
離物質の粗大片を、この部分に対応するインペラ
の中心近くで破砕させるから、破砕が速やかに行
われて、難解離性物質の外周域への到来を極力少
なくすることができる。 Since the coarse pieces of the difficult-to-dissociate substance introduced into the recessed inner peripheral area of the strainer are crushed near the center of the impeller corresponding to this part, the crushing is quickly carried out and the difficult-to-dissociate substance is transported to the outer peripheral area. The occurrence of this can be minimized.

パルパー槽内へ垂らしたロープに異物を巻き付
かせて槽外へ排出する従来のラガー装置によつて
は、除去が困難な形状の残留物質を破砕除去でき
るため、これによるパルパーの操業障害を起こさ
ず、従つて槽内掃除の無駄な手数が省けて、稼動
効率の上昇と操業性の向上が計れる。 With conventional lugger equipment, which wraps foreign matter around a rope hanging inside the pulper tank and discharges it outside the tank, residual materials with shapes that are difficult to remove can be crushed and removed, thereby eliminating the possibility of malfunctions in pulper operation. Therefore, the unnecessary labor of cleaning the inside of the tank can be eliminated, and the operating efficiency and operability can be improved.

等の特徴を有するものであつた。It had the following characteristics.

（発明が解決しようとする問題点） しかし、前記したパルパーにより難溶解離性物
質と有用繊維物質とを分離して排出しても、排出
された難溶解離性物質と繊維性物質との合理的な
後処理をしないと、難溶解離性物質に混入して排
出された有用繊維性物質の回収と、有用繊維性物
質の精選を完全に能率良く行うことができないた
め、前記したパルパーの機能を十分に発揮させる
ことができない問題点があつた。(Problems to be Solved by the Invention) However, even if the difficult-to-dissolve and useful fibrous substances are separated and discharged using the pulper described above, the rationality of the discharged difficult-to-dissolve and dissociate substances and the useful fibrous substances is Without post-processing, it is not possible to completely efficiently recover the useful fibrous substances mixed with the difficult-to-dissolve and discharged substances and to select the useful fibrous substances. There was a problem in which it was not possible to make full use of the performance.

本発明は、前記した従来の問題点を解決するた
めになされたもので、パルパーの改良されたスト
レーナとロータとの組合わせにより、難溶解性物
質と有用繊維物質とを弁別してそれぞれの後処理
装置に送給し、その難溶解離性物質は補助パルパ
ーへ送つて、混入した有用繊維物質を撹拌による
溶解離と洗浄とにより分離し、不良物質は廃棄
し、回収した有用繊維物質は前記したパルパーの
有用繊維物質と一緒に複合スクリーンへ送つて、
平面と円筒のストレーナにより二重精選させて異
物の完全な除去を行わせ、繊維性物質が効率よく
回収されて、しかも、異物混入の少ない良質紙料
を安定した濃度、流量、品質で得られる故紙原料
の溶解離精選装置を提供することを目的としてい
る。 The present invention has been made to solve the above-mentioned conventional problems, and uses a combination of an improved strainer and a rotor of a pulper to distinguish between hardly soluble substances and useful fiber substances, and to post-process each of them. The difficult-to-dissolve and separable substances are sent to the auxiliary pulper, and the mixed useful fiber substances are separated by dissolution and separation by stirring and washing, and the defective substances are discarded, and the recovered useful fiber substances are as described above. Send it to the composite screen together with the useful fiber material of the pulper.
Dual selection using flat and cylindrical strainers to completely remove foreign matter, efficiently recovering fibrous materials, and obtaining high-quality paper stock with little foreign matter contamination at stable concentration, flow rate, and quality. The purpose is to provide a dissolving and separating equipment for waste paper raw materials.

ロ 発明の構成 （問題点を解決するための手段） 前記目的を達成するための本発明の手段は、処
理原料を容入する槽１の底部に、粗目孔５の内周
域ａと、細目孔６の外周域ｂとを区分形成したス
トレーナ４を設け、該ストレーナ４に撹拌インペ
ラ３を近接配置し、前記ストスレーナ４の下流側
に、粗目孔５の内周域ａと、細目孔６の外周域ｂ
とに各別に連通する２つの室８，９を設けたパル
パーＰと、前記パルパーＰの一方の室８より難溶
解離物質の液を容入する槽２５内に、刃条２２付
きのストレーナ２４と、これに近接配置したイン
ペラ２７とを設け、前記槽２５に洗浄手段２９，
２９′を装備させた分離補助パルパーＵと、前記
パルパーＰの他方の室９より有用繊維物質の液を
容入する槽３４内に、細目孔３２の平面スレーナ
３３と、その下流側に位置する更に細目孔３９の
円筒ストレーナ４０とを配設して、平面ストレー
ナ３３にインペラ３５を、円筒ストレーナ４０に
ブレード４３付きロータ４２を近接配置した複合
式スクリーン４３付きロータ４２を近接配置した
複合式スクリーンＴとを集中して組合わせたたこ
とを特徴とする故紙原料の溶解離精選装置の構成
に存する。B. Structure of the Invention (Means for Solving the Problems) The means of the present invention for achieving the above-mentioned object is such that the inner peripheral area a of the coarse holes 5 and the fine holes are provided at the bottom of the tank 1 containing the raw material to be treated. A strainer 4 is provided in which the outer circumferential area b of the hole 6 is separated from the outer circumferential area b of the hole 6, and the stirring impeller 3 is arranged close to the strainer 4. Outer area b
A pulper P is provided with two chambers 8 and 9 that communicate with each other, and a strainer 24 with blades 22 is installed in a tank 25 that contains a liquid of a difficult-to-dissolve substance from one of the chambers 8 of the pulper P. and an impeller 27 arranged close to this, and the tank 25 is provided with a cleaning means 29,
A separation auxiliary pulper U equipped with a separation auxiliary pulper 29', a flat strainer 33 with fine holes 32 in a tank 34 containing a liquid of useful fiber material from the other chamber 9 of the pulper P, and a flat strainer 33 located downstream thereof. A composite screen in which a cylindrical strainer 40 with fine holes 39 is further arranged, an impeller 35 is arranged close to the flat strainer 33, and a rotor 42 with blades 43 is arranged close to the cylindrical strainer 40. The present invention resides in the structure of a waste paper raw material melting and separation device characterized by a concentrated combination of T and T.

（作用） 前記のように構成される本発明の故紙原料の溶
解難精選装置は、故紙原料をパルパーＰの槽１内
に投入して、3.5〜５％の濃度設定により溶解離
処理を行うと、原料中の難溶解離性物質は、粗目
孔５とインペラ３との協働により粗大なものを破
砕されて、粗目孔５を通れるものは速やかに室８
へ流出するから、前記ストレーナ４の平らな外周
域ｂには主として難溶解離性物質を除かれた溶解
離性の繊維質原料が流動し、細目孔６とインペラ
３との協働により破砕されて細目孔６を通過し得
るようになつたものが室９へ流出して、溶解離性
繊維と難溶解離性物質とは別々の管路１１，１３
により次工程へ送られる。(Function) In the apparatus for selecting difficult-to-dissolve waste paper raw materials of the present invention configured as described above, waste paper raw materials are put into the pulper P tank 1 and subjected to dissolution and separation treatment with a concentration setting of 3.5 to 5%. The difficult-to-dissolve and dissociate substances in the raw materials are crushed by the cooperation of the coarse holes 5 and the impeller 3, and those that can pass through the coarse holes 5 are immediately transferred to the chamber 8.
Therefore, the dissolvable fibrous raw material, from which the hardly dissolvable substances are mainly removed, flows into the flat outer peripheral area b of the strainer 4, and is crushed by the cooperation of the fine holes 6 and the impeller 3. The material that can pass through the narrow holes 6 flows out into the chamber 9, and the dissolvable fibers and the hardly dissolvable substances are separated into separate pipes 11 and 13.
is sent to the next process.

前記パルパーＰから管路１１により間歇的に送
られた難溶解離性物質は、分離補助パルパーＵに
於ける槽２５の前室ｃに入り、インペラ２７の回
転により撹拌溶解離されて、難溶解離性物質やに
混入する有用繊維物質を分離され、これをストレ
ーナ２４の細目孔を通して後室ｄへ送り出し、一
定時間を経過すると、不良物質の増加により負荷
動力が設定動力に上昇するので、この時、処理原
料の供給を止め、洗浄手段２９，２９′により槽
２５内へ洗浄水を供給して希釈洗浄を行うと、槽
２５内に残存した不良物質をインペラ２７が撹拌
洗浄して、これに付着残存していた有用繊維物質
を洗い出して送給するから、このときに洗浄水管
２９の弁Ｖ５を閉じ、圧縮空気管２９′の弁Ｖ６
を開いて槽２５に送給し、これにより残存液をス
トレーナ２４の細目孔を通して後室ｄへ送り出す
ため、有用繊維性物質はほぼ完全に回収され、難
溶解離物質のみが前室ｃに残留するから、この時
点で圧縮空気管２９′の弁Ｖ６を閉じ、再び洗浄
水管２９の弁Ｖ５を開いて給水し、槽２５の底部
にある排出弁Ｖ４を開き、洗浄水を系外に廃棄し
て次の処理に対応するものである。 The hardly soluble and separable substances sent intermittently from the pulper P through the conduit 11 enter the front chamber c of the tank 25 in the separation auxiliary pulper U, where they are stirred, dissolved and separated by the rotation of the impeller 27, and become the hardly soluble substances. Useful fiber substances mixed in with the release substances are separated and sent to the rear chamber d through the fine holes of the strainer 24. After a certain period of time, the load power increases to the set power due to the increase in the amount of defective materials. At this time, when the supply of raw materials to be treated is stopped and cleaning water is supplied into the tank 25 by the cleaning means 29 and 29' to perform dilution cleaning, the impeller 27 stirs and cleans the defective substances remaining in the tank 25. At this time, the valve V5 of the washing water pipe 29 is closed, and the valve V6 of the compressed air pipe 29' is closed.
Since the remaining liquid is sent to the rear chamber d through the fine holes of the strainer 24, the useful fibrous substances are almost completely recovered, and only the difficult-to-dissolve substances remain in the front chamber c. Therefore, at this point, close the valve V6 of the compressed air pipe 29', open the valve V5 of the wash water pipe 29 again to supply water, and open the discharge valve V4 at the bottom of the tank 25 to discard the wash water outside the system. This corresponds to the following processing.

又、前記パルパーＰから管路１３により連続的
に送り出される有用繊維物質の液は、複合スクリ
ーンＴの槽３４内に入り、前室ｅ於いてインペラ
３５により溶解離されて、混入する異物を排出手
段３７により槽３４外へ排出され、有用繊維物質
は平面スクリーン３３を通過できるものが、その
細目孔３９を通つて後室ｆへ流入し、後室ｆに於
いてはロータ４２の回転により撹拌され、円筒ス
トレーナ４０の更に細目孔３９をブレード４３の
作用により精選して外室ｇに流出し、この精選原
料液を管路４１により抄紙原料工程のフイルター
へ送られる。しかし、リジエクト管４４の原料液
は複合スクリーンＴの前工程に戻ることはないも
のである。 Further, the liquid of useful fibrous material continuously sent out from the pulper P through the pipe line 13 enters the tank 34 of the composite screen T, and is dissolved and separated by the impeller 35 in the front chamber e, and foreign matter mixed in is discharged. The useful fiber material that is discharged out of the tank 34 by the means 37 and can pass through the flat screen 33 flows into the rear chamber f through the narrow holes 39, and is stirred in the rear chamber f by the rotation of the rotor 42. The fine holes 39 of the cylindrical strainer 40 are further filtered by the action of the blade 43 to flow out into the outer chamber g, and this selected raw material liquid is sent through a pipe line 41 to a filter in the papermaking raw material process. However, the raw material liquid in the redirect pipe 44 does not return to the previous process of the composite screen T.

（実施例） 以下に本発明に関する紙料の溶解離精選装置の
実施の一例を図面に基づいて説明する。(Example) An example of the implementation of the paper stock melting and separation apparatus according to the present invention will be described below with reference to the drawings.

図面第１図及び第２図に於いてＰはパルパー
で、原料が回流を起し易い形状とした槽１の底部
の中央に、動力２により回転されるインペラ３を
設け、このインペラ３の周りにストレーナ４を配
置し、該ストレーナ４は第２図に示すように内周
域ａと外周域ｂとに区分して、その内周域ａは凹
没させ、この部分に75mmΦの粗目孔５を設け、外
周域ｂは平面にして５mmΦ以上６〜12mmΦの細目
孔６を形成し、前記ストレーナ４の下側には、仕
切壁７により区分されて前記内周域ａの粗目孔５
に通じる室８と、外周域ｂの粗目孔６に通じる室
９とを設け、前記槽１へ第１図のようにコンベヤ
１０により原料を投入すると、これがインペラ３
の回転により起される縦、横の回流に乗つて流動
し、難溶解離性物質は吸水しにくいいため重くな
らないから、中央部を降下して凹没する内周域ａ
に入り、粗大なものは破砕され、他のものは細砕
されずに細目孔５から室８へ速やかに送り出さ
れ、室８から弁Ｖ１を備える排出管１１に設けた
ポンプ１２が運転される時、後記する分離補助パ
ルパーへ送供され、有用繊維物質は細目孔６から
室９へ送られ、排出管１３に設けたポンプ１４に
よりサイクロン分離器１５へ送られ、これにより
異物を分離されて、後記する複合スクリーンへ直
接給送されるか、操業の必要上、第１図に鎖線で
示すようにサイクロン分離器１５から一旦貯槽１
６へ送られ、これに溜められたものがポンプ１７
により複合スクリーンへ送られて、それぞれ次の
処理を施させるものであり、又、このパルパーＰ
は、必要に応じて他の処理装置から戻される原料
液を受入れる補助タンク１１を備え、上部から槽
１内へ溢流させることができ、底部には弁Ｖ２を
備える供給管１８を接続してある。又、槽１内の
重量異物を捕捉して外部へ廃棄するための排出弁
Ｖ３を備える異物捕捉ポケツト２０と、槽１内へ
垂らして粗大異物を絡み付かせ、槽１から引き上
げて廃棄するロープ式ラガ装置２１とを付属装置
として設置することもある。 In Figures 1 and 2 of the drawings, P is a pulper, and an impeller 3 rotated by a power 2 is installed at the center of the bottom of a tank 1 which has a shape that allows the raw material to easily circulate. The strainer 4 is divided into an inner circumferential area a and an outer circumferential area b as shown in FIG. The outer peripheral area b is flat and has fine holes 6 of 5 mmΦ or more and 6 to 12 mmΦ, and the lower side of the strainer 4 is divided by a partition wall 7 and has coarse holes 5 in the inner peripheral area a.
A chamber 8 that communicates with the tank 1 and a chamber 9 that communicates with the coarse holes 6 in the outer circumferential area b are provided, and when the raw material is fed into the tank 1 by the conveyor 10 as shown in FIG.
The inner circumferential area a descends from the center and sinks because the hardly soluble and dissociable substances do not absorb water easily and therefore do not become heavy.
Coarse materials are crushed, and other materials are immediately sent out from the fine hole 5 to the chamber 8 without being crushed, and from the chamber 8, a pump 12 provided in a discharge pipe 11 equipped with a valve V1 is operated. At the same time, the useful fiber material is sent to a separation auxiliary pulper to be described later, and the useful fiber material is sent to the chamber 9 through the narrow hole 6, and sent to the cyclone separator 15 by the pump 14 provided in the discharge pipe 13, where foreign substances are separated. , either directly to the composite screen (to be described later), or, depending on operational requirements, from the cyclone separator 15 to the storage tank 1 as shown by the chain line in FIG.
6, and what is stored there is sent to pump 17
is sent to a composite screen to be subjected to the following treatments, and this pulper P
is equipped with an auxiliary tank 11 for receiving raw material liquid returned from other processing equipment as necessary, and can be made to overflow into the tank 1 from the top, and a supply pipe 18 equipped with a valve V2 is connected to the bottom. be. Further, there is a foreign matter trapping pocket 20 equipped with a discharge valve V3 for capturing heavy foreign matter in the tank 1 and disposing of it to the outside, and a rope that is hung into the tank 1 to entangle coarse foreign matter and then pulled up from the tank 1 and disposed of. A type raga device 21 may also be installed as an accessory device.

Ｕは前記したパルパーＰから排出管１１により
送られる難溶解離物質中の有用繊維物質を分離回
収する分離補助パルパーで、公知の刃条２２付き
細目孔２３を有するストレーナ２４により槽２５
内を前室ｃと後室ｄとに区分し、その前室ｃの前
記ストレーナ２４側に動力２６により回転される
インペラ２７を近接配置し、前室ｃの下側には洗
浄後の残留物溜２８を設けて、その底部に弁Ｖ４
を装備し、上部外周には重量異物が旋回力によつ
て投出されるのを受けて異物分離を行うサイクロ
ン分離器３０を接続し、重量異物は下部の異物溜
へ除かれ、繊維分を含む原料液は再びｃ室に戻
る。前室ｃの異物量が増加して負荷動力が上昇
し、設定動力に達すると、ポンプ１２が停止して
原料の送給も止まる。次に、弁Ｖ５を備える送水
管２９から洗浄水を送り込んで内部の原料液を稀
釈洗浄し、洗浄後、送水を止めて弁Ｖ６を備える
圧縮空気管２９′により圧縮空気を送り込み、前
室ｃと後室ｄ内の有用繊維物質が含まれる稀釈原
料液を前記パルパーＰの補助タンク１９へ排出管
３１によつて送給することにより、前記した経路
によりパルパーＰの難溶解性物質が分離補助パル
パーＵへ送り込まれると、インペラ２７により回
流されて撹拌洗浄を受け、不良物質を混入する有
用繊維物質が分離され、出口管３１よりタンク１
９に送給されて、停滞する不良物質は、水洗によ
り付着有用繊維分の分離を強制され無駄のない有
用繊維物質の回収が行われるようにしてある。 U is a separation auxiliary pulper that separates and recovers useful fibers from the difficult-to-dissolve substances sent from the above-mentioned pulper P through the discharge pipe 11.
The interior is divided into a front chamber c and a rear chamber d, and an impeller 27 rotated by a power 26 is arranged close to the strainer 24 side of the front chamber c, and the residue after cleaning is placed on the lower side of the front chamber c. A reservoir 28 is provided, and a valve V4 is installed at the bottom of the reservoir 28.
A cyclone separator 30 is connected to the outer periphery of the upper part, which separates heavy foreign matter by receiving it by the turning force, and removes the heavy foreign matter to a foreign matter reservoir at the bottom, including fibers. The raw material liquid returns to chamber c again. The amount of foreign matter in the front chamber c increases and the load power increases, and when the set power is reached, the pump 12 is stopped and the feeding of the raw material is also stopped. Next, washing water is sent from the water pipe 29 equipped with the valve V5 to dilute and wash the raw material liquid inside. After washing, the water supply is stopped and compressed air is sent through the compressed air pipe 29' equipped with the valve V6, and the front chamber c By feeding the diluted raw material solution containing useful fiber substances in the rear chamber d to the auxiliary tank 19 of the pulper P through the discharge pipe 31, the hardly soluble substances of the pulper P are assisted in separation through the above-described route. Once sent to the pulper U, it is circulated by the impeller 27 and subjected to agitation and cleaning, and useful fiber materials mixed with defective materials are separated.
The defective materials sent to the filter 9 and stagnant are washed with water to force the adhering useful fibers to be separated, so that the useful fibers can be recovered without waste.

尚、前記排出管１１に設けたポンプ１２は、第
２図に示すように出口管３１に設ければ、第１図
ではパルパーＰから吸引して、分離補助パルパー
Ｕへ圧送された原料液が、吸引のみによつて分離
補助パルパーＵへ取入れられ、分離補助パルパー
Ｕから出た原料液がパルハーＰへ圧送されるもの
である。 Incidentally, if the pump 12 provided in the discharge pipe 11 is provided in the outlet pipe 31 as shown in FIG. 2, the raw material liquid sucked from the pulper P in FIG. The raw material liquid is introduced into the auxiliary separation pulper U only by suction, and the raw material liquid discharged from the auxiliary separation pulper U is sent under pressure to the pulper P.

Ｔは前記したパルパーから送られる繊維物質を
精選する複合スクリーンで、３mmΦ程度の細目孔
３２を有する平面ストレーナ３３により槽３４が
区分される前室ｅと後室ｆを備え、その前室ｅの
前記平面ストレーナ３３側に動力３４により回転
されるインペラ３５を近接配置し、周壁には有用
繊維物質の送入管３６と、重量異物を旋回力によ
り排出するサイクロン分離器３７とを接続し、前
記インペラ３５に対応する側壁の中心には、軽量
異物の排出管３８を接続し、後室ｆの外側には
0.3mm巾のスリツト状の更に細目孔３９を有する
円筒ストレーナ４０により隔離される外室ｇを設
け、この外室ｇに精選原料の送出管４１を接続
し、前記後室ｆの内部には前記したインペラ３５
と同じ動力により回転されるロータ４２を配置し
て、その周面にブレード４３を取り付け、更に後
室ｆの端部にリジエクト原料液の出口管４４を接
続することにより、前室ｅへ有用繊維物質液を送
り込むと、これがインペラ３５により攪拌回流さ
れて、離解と混入異物の分離とを行われ、平面ス
トレーナ３３を通過できる原料は後室ｆへ流入
し、ロータ４２のブレード４３により円筒ストレ
ーナ４０に沿つて回流され、該ストレーナ４０を
通過したものは外室ｇより精選紙料として抄紙工
程へ送られ、ストレーナ４０を通過できないもの
は後行程の貯槽４５へ送られて、複合スクリーン
Ｔより前行程へは戻されず、貯槽４５からポンプ
４６によりリジエクト原料処理システムへ送ら
れ、このシステム４７により更に選別処理され
て、排出された有用繊維物質は後記する洗浄濃縮
装置へ送られ、軽量物質液は貯槽４８へ送られ、
ポンプ４９により後記する離解分離機へ送られて
次の処理を施される。 T is a composite screen for carefully selecting the fiber material sent from the above-mentioned pulper, and is equipped with a front chamber e and a rear chamber f in which a tank 34 is divided by a plane strainer 33 having fine holes 32 of about 3 mmΦ. An impeller 35 rotated by a power 34 is arranged close to the plane strainer 33 side, and an inlet pipe 36 for useful fiber material and a cyclone separator 37 for discharging heavy foreign matter by swirling force are connected to the peripheral wall. A lightweight foreign matter discharge pipe 38 is connected to the center of the side wall corresponding to the impeller 35, and a light foreign matter discharge pipe 38 is connected to the outside of the rear chamber f.
An outer chamber g is provided which is isolated by a cylindrical strainer 40 having a 0.3 mm wide slit-shaped cylindrical strainer 39, and a selected raw material delivery pipe 41 is connected to this outer chamber g. impeller 35
By disposing a rotor 42 that is rotated by the same power as the rotor 42 and attaching a blade 43 to its circumferential surface, and further connecting an outlet pipe 44 for the reject raw material liquid to the end of the rear chamber f, useful fibers can be delivered to the front chamber e. When the substance liquid is sent in, it is stirred and circulated by the impeller 35 to perform disintegration and separation of mixed foreign substances.The raw material that can pass through the flat strainer 33 flows into the rear chamber f, and is passed through the cylindrical strainer 40 by the blades 43 of the rotor 42. The material that passes through the strainer 40 is sent from the outer chamber g to the papermaking process as a selected paper stock, and the material that cannot pass through the strainer 40 is sent to the storage tank 45 in the subsequent process, and is sent to the papermaking process before the composite screen T. It is not returned to the process, but is sent from the storage tank 45 to the reject raw material processing system by the pump 46, and is further sorted by this system 47. The discharged useful fiber material is sent to the washing and concentration device described later, and the light material liquid is sent to storage tank 48,
It is sent by a pump 49 to a disintegration separator, which will be described later, and is subjected to the following treatment.

Ｆは抄紙前に原料調整を行う洗浄濃縮機で、精
選原料を槽５０に受入れ、内部に設けたフイルタ
ー５１により洗浄しつつ搾水して、抄紙機前の原
料調整行程へ送る。 F is a washing and concentrating machine that adjusts raw materials before papermaking, which receives selected raw materials into a tank 50, washes them with a filter 51 installed inside, squeezes water, and sends them to a raw material adjustment process before the paper machine.

Ｄは前記した複合スクリーンＴから送り出され
る軽量異物を受け入れて、処理する離解分離機
で、1.5〜６mmΦの細目孔５２を有する平面スト
レーナ５３により前室ｈと後室ｉとを区分形成し
て、前室ｈのストレーナ５３側に動力５４により
回転されるインペラ５５を近接配置し、前室ｈの
上部に前記ポンプ４９により送られる軽量異物の
取入管５６を、下部に残留異物を排出して後記す
る振動スクリーンへ送る排出管５７を、後室ｇに
はストレーナ５３を通過した有用繊維物質を前記
した貯槽４５へ給送させる給送管５９を接続する
ことにより、貯槽４８に溜められた複合スクリー
ンＴのリジエクトを受入れてインペラ５５により
攪拌回流させて、攪拌と洗浄を施し、ストレーナ
５３を通過した有用繊維物質は貯槽４５へ送ら
せ、残留異物は排出口５７により振動スクリーン
５８へ送つて異物を除去し、有用繊維を前記した
パルパーＰへ戻して再処理をさせる。又、異物の
種類によつては振動スクリーンを省いて廃棄す
る。 D is a disintegration separator that receives and processes the lightweight foreign matter sent out from the above-mentioned composite screen T, and divides it into a front chamber h and a rear chamber i by a plane strainer 53 having fine holes 52 of 1.5 to 6 mmΦ. An impeller 55 rotated by a power 54 is arranged close to the strainer 53 side of the front chamber h, an intake pipe 56 for lightweight foreign matter sent by the pump 49 is placed in the upper part of the front chamber h, and a residual foreign matter is discharged in the lower part. By connecting a discharge pipe 57 for feeding the vibrating screen to the vibrating screen, and a feed pipe 59 for feeding the useful fiber material passed through the strainer 53 to the storage tank 45 to the rear chamber g, the composite screen stored in the storage tank 48 can be removed. Rejects of T are received, stirred and circulated by the impeller 55, and subjected to stirring and washing.The useful fiber material that has passed through the strainer 53 is sent to the storage tank 45, and the remaining foreign matter is sent to the vibrating screen 58 through the discharge port 57 to remove foreign matter. The useful fibers are returned to the aforementioned pulper P for reprocessing. Depending on the type of foreign matter, the vibrating screen may be omitted and disposed of.

Ｗは前記した離解分離機Ｄの代わりに用いいた
洗浄スクリーンで、円筒形のケーシング６０内に
同形のスクリーンバスケツト６１と、これを取り
囲む二次室６２とを設け、前記ケーシング６０の
上部周面に処理物の入口管６３を、中心部に軽量
廃棄物の出口管６４を、二次室６２には精選紙料
の出口管６５をそれぞれ接続し、前記スクリンー
バスケツト６１の内側には、動力６６により回転
されるアジテーター６７を設けることにより、処
理原料を入口管６３から送りこむと、原料はその
押込圧と、アジテーター６７の起こす脈動圧とに
より、効果的に選別されて、スクリーンバスケツ
ト６１を通れる原料は、二次室６２に出て出口管
６５から複合スクリーンＴのリジエクトを溜める
貯槽４５へ送られ、通れない重量異物は出口管６
８から異物溜６９へ排出され、上方に浮上した軽
量異物は出口管６４から異物溜６９へ廃棄される
ようにするものである。 W is a washing screen used in place of the above-mentioned disintegrating and separator D, which is provided with a screen basket 61 of the same shape in a cylindrical casing 60 and a secondary chamber 62 surrounding it, and on the upper circumferential surface of the casing 60. An inlet pipe 63 for the processed material is connected to the central part, an outlet pipe 64 for light waste is connected to the center, and an outlet pipe 65 for the selected paper stock is connected to the secondary chamber 62. By providing an agitator 67 that is rotated by the agitator 67, when the raw material to be treated is sent from the inlet pipe 63, the raw material is effectively sorted by the pushing pressure and the pulsating pressure generated by the agitator 67, and the raw material that can pass through the screen basket 61 is effectively separated. The foreign matter exits to the secondary chamber 62 and is sent from the outlet pipe 65 to the storage tank 45 where the rejects of the composite screen T are collected.
8 to the foreign matter reservoir 69, and the light foreign matter floating upward is disposed of from the outlet pipe 64 to the foreign matter reservoir 69.

ハ 考案の効果 前述のように本考案のパルパーと分離補助パル
パーと複合スクリーンとを集中して組合わせた故
紙原料の溶解離精選装置は、ストレーナとロータ
の組合わせを改良したパルパーの特性により、原
料中の難溶解離性物質を大片に破断して速やかに
槽外へ排出し、有用繊維物質だけを溶解離して、
前記難溶解離物質とは別に排出させることによ
り、純度の高い紙料を得ることができるだけでな
く、排出された難溶解離性物質中に混入する有用
繊維物質を、一方の分離補助パルパーに於ける攪
拌解離と洗浄によりほぼ完全に回収させ、同時に
不良物質を系外に廃棄してパルパーの障害をなく
し、又、有用繊維物質は他方の複合スクリーン内
の二種のストーナによる二重選別を行つて、異物
混入がなくて解離度が揃つた良質の精選紙料を
得、拒絶されたリジエクト原料は、複合スクリー
ンの前の行程へは戻さないから、故紙原料等の溶
解離処理において、不良物質の系内循環の弊害を
なくし、前記したパルパーの優れた特性を十分に
活かして、有用繊維物質の流出する無駄を省い
て、良質の紙料を安定して効率よく得ることがで
きる。C. Effects of the invention As mentioned above, the dissolution and separation equipment for waste paper raw materials that intensively combines the pulper, separation auxiliary pulper, and composite screen of the present invention has the characteristics of the pulper with an improved combination of strainer and rotor. The difficult-to-dissolve and separable substances in the raw materials are broken into large pieces and quickly discharged from the tank, and only the useful fiber substances are dissolved and separated.
By discharging the material separately from the difficult-to-dissolve materials, not only can paper stock with high purity be obtained, but also the useful fiber materials mixed in the discharged difficult-to-dissolve and release materials can be removed by one separation auxiliary pulper. Almost complete recovery is achieved through agitation dissociation and washing, and at the same time, defective materials are disposed of outside the system to eliminate pulper obstruction, and useful fiber materials are double sorted using two types of stoners in the other composite screen. As a result, high-quality selected paper stock with no foreign matter contamination and a uniform degree of dissociation can be obtained. Rejected raw materials are not returned to the process before the composite screen, so in the dissolution and separation process of waste paper raw materials, etc. It is possible to eliminate the adverse effects of circulation within the system, make full use of the above-mentioned excellent properties of the pulper, eliminate wasteful flow of useful fiber substances, and obtain high-quality paper stock stably and efficiently.

パルパーと分離補助パルパーと複合式スクリー
ンを一群に組合わせた装置は、原料処理に対して
有害な不純物質を常に補足して、原料液の不純化
を防ぐから、複合スクリーンに受入れられると
き、濃度、流量、品質が持続的に安定して、その
出口精選原料の品質も従来のものよりも、微細異
物の混入が少ない優れたもので、更に濃度、流量
も一定しているため、順調な操業が持続される。 A device that combines a pulper, a separation auxiliary pulper, and a composite screen in one group constantly captures impurities that are harmful to raw material processing and prevents contamination of the raw material liquid, so when it is received into the composite screen, the concentration , the flow rate and quality are continuously stable, and the quality of the selected raw material at the outlet is also superior to conventional ones, with less contamination by minute foreign matter.Furthermore, the concentration and flow rate are constant, so operations are smooth. is sustained.

複合スクリーンの出口管及び軽量リジエクト処
理装置の戻り原料の出口から貯槽へ送給されるリ
ジエクト原料液の量が、段ボール故紙処理の場
合、従来は30％程度であつたものが、本考案にお
いては25％程度で済み、このため原料調整室にお
けるリジエクト処理装置がこの分だけ小形化でき
るようになる。 In the case of cardboard wastepaper processing, the amount of reject material liquid sent to the storage tank from the exit pipe of the composite screen and the return material exit of the lightweight redirect processing device was about 30% in the past, but in the present invention, It only takes about 25%, which means that the reject processing equipment in the raw material adjustment room can be made smaller by this amount.

パルパー、分離補助パルパー、複合スクリーン
の三者において拒絶されたリジエクト原料液から
有用繊維分を無駄なく回収できる他、三者の廃棄
物を一括して処理できる便利があつて、且つ操業
が安定しているため信頼性の高い自動制御が可能
である。 In addition to being able to recover useful fibers without waste from the rejected raw material liquid rejected by the pulper, separation auxiliary pulper, and composite screen, it is also convenient because the waste from the three sources can be processed all at once, and the operation is stable. This enables highly reliable automatic control.

等の特有の効果を奏するものである。It has the following unique effects.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に関する装置の実施の一例を示
す全体の概要図。第２図は同上に分離補助パルパ
ーの配管の一部変更を示す概要図。第３図は同上
におけるパルパーの構造を示す縦断正面図、第４
図は同上における分離補助パルパーの構造を示す
縦断側面図。第５図は同上における複合スクリー
ンの構造を示す縦断正面図である。 Ｐ：パルパー、Ｕ：分離補助パルパー、１：
槽、４：ストレーナ、ａ：内周域、ｂ：外周域、
５：粗目孔、６：細目孔、３：インペラ、８，
９：２つの室、Ｕ：分離補助パルパー、２４：
槽、２３：ストレーナ、２７：インペラ、２９と
２９′：洗浄手段、Ｔ：複合式スクリーン、３
３：平面ストレーナ、４０：円筒ストレーナ、４
２：ブレード43付きのロータ。 FIG. 1 is an overall schematic diagram showing an example of implementation of a device related to the present invention. FIG. 2 is a schematic diagram showing a partial change in the piping of the separation auxiliary pulper. Figure 3 is a longitudinal sectional front view showing the structure of the pulper in the same as above;
The figure is a longitudinal side view showing the structure of the separation auxiliary pulper in the same as above. FIG. 5 is a longitudinal sectional front view showing the structure of the composite screen according to the above. P: Pulper, U: Separation auxiliary pulper, 1:
Tank, 4: Strainer, a: Inner area, b: Outer area,
5: coarse hole, 6: fine hole, 3: impeller, 8,
9: Two chambers, U: Separation auxiliary pulper, 24:
Tank, 23: Strainer, 27: Impeller, 29 and 29': Cleaning means, T: Composite screen, 3
3: Plane strainer, 40: Cylindrical strainer, 4
2: Rotor with blades 43.

Claims (1)

【特許請求の範囲】[Claims] １ 処理原料を容入する槽の底部に、粗目孔の内
周域と、細目孔の外周域とを区分形成したストレ
ーナを設け、該ストレーナに撹拌インペラを近接
配置し、前記ストレーナの下流側に粗目孔の内周
域と、細目孔の外周域とに各別に連通する２つの
室を設けたパルパーと、該パルパーの一方の室よ
り排出される難溶解離物質の液を容入する槽内
に、細目孔のストレーナと、これに近接配置した
インペラとを設け、前記槽に洗浄手段を装備させ
た分離補助パルパーと、前記パルパーの他方の室
より排出される有用繊維物質の液を容入する槽内
に、平面の細目孔ストレーナと、その下流側に位
置する更に細目孔の円筒ストレーナとを配設し
て、前記平面ストレーナにインペラを、円筒スク
リーンにブレード付きロータをそれぞれ近接配置
した複合式スクリーンとを集中して組合わせたこ
とを特徴とする故紙原料の溶解離精選装置。1. A strainer is provided at the bottom of the tank containing the raw material to be treated, in which an inner circumferential area of coarse holes and an outer circumferential area of fine holes are separated, and a stirring impeller is disposed close to the strainer, and a stirring impeller is disposed adjacent to the strainer, and a A pulper having two chambers communicating with the inner peripheral area of the coarse holes and the outer peripheral area of the fine holes, and a tank containing a liquid of a difficult-to-dissolve substance discharged from one chamber of the pulper. is provided with a fine-pore strainer and an impeller disposed close to the strainer, and the tank contains a separating auxiliary pulper equipped with a cleaning means and a liquid of useful fiber material discharged from the other chamber of the pulper. In a tank, a flat strainer with fine holes and a cylindrical strainer with fine holes located downstream of the strainer are arranged, and an impeller is placed close to the flat strainer, and a rotor with blades is placed close to the cylindrical screen. An apparatus for dissolving and separating waste paper raw materials, characterized by a combination of a type screen and a screen.