JP5526328B2 - Recycled pulp manufacturing equipment and used paper recycling equipment - Google Patents

Recycled pulp manufacturing equipment and used paper recycling equipment Download PDF

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JP5526328B2
JP5526328B2 JP2010062804A JP2010062804A JP5526328B2 JP 5526328 B2 JP5526328 B2 JP 5526328B2 JP 2010062804 A JP2010062804 A JP 2010062804A JP 2010062804 A JP2010062804 A JP 2010062804A JP 5526328 B2 JP5526328 B2 JP 5526328B2
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paper
raw material
water
supply unit
tank
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JP2011195981A (en
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佳久 東本
章 川口
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Duplo Seiko Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Description

本発明は再生パルプ製造装置および古紙再生処理装置に関するものである。   The present invention relates to a recycled pulp manufacturing apparatus and a used paper recycling processing apparatus.

従来、わが国においては、一度使用した古紙、例えば古新聞紙やオフィス等で生じる古紙を回収して紙を再生する技術ならびに社会システムが確立している。
しかし、古紙から再生紙を製紙する場合には、古新聞紙がリサイクル品として回収される住宅街等やオフィス等の紙の消費場所と、古紙から紙を再生する再製紙工場とは離れており、古紙の回収、運搬にコストとエネルギーを要する。また、オフィスでは古紙の持ち出しにより紙に記載された機密情報等が外部へ漏洩するおそれがある。 2. Description of the Related Art Conventionally, in Japan, a technology and a social system have been established for recovering used paper, such as used newspaper and office paper, and recycling the used paper.
However, when recycled paper is made from used paper, the consumption of paper in residential areas, offices, etc., where old newspaper is collected as recycled products, and the papermaking factory that recycles paper from used paper are separated. Cost and energy are required to collect and transport waste paper. Also, in the office, there is a risk that confidential information and the like written on the paper will be leaked to the outside by taking out the used paper.

そこで、下記特許文献１、２には、装置を小型化し、紙の消費場所で古紙を処理することの可能な古紙処理装置に関する開示があり、特許文献１には、古紙再生方法および装置として、文書裁断機によって裁断した古紙を離解して再生パルプとする工程と、再生パルプを貯蔵する工程と、再生パルプを噴射装置に充填して繊維シートに吹きかける工程と、繊維シートに吹きかけた再生パルプを抄紙する工程とからなる構成等が記載されている。  Therefore, Patent Documents 1 and 2 below disclose a waste paper processing apparatus that can reduce the size of the apparatus and process waste paper at a paper consumption place. Patent Document 1 discloses a waste paper recycling method and apparatus as follows: A step of separating recycled paper cut by a document cutting machine into a recycled pulp, a step of storing the recycled pulp, a step of filling the recycled pulp into an injection device and spraying the fiber sheet, and a recycled pulp sprayed on the fiber sheet A configuration including a paper making process is described.

また、特許文献２には、古紙の裁断紙片を離解して再生パルプを調製する再生パルプ部と、再生パルプを漂白して脱墨パルプを調製する脱墨パルプ部と、脱墨パルプを抄紙して再生紙を調製する抄紙部を一体的に備える古紙処理装置が記載されている。  Patent Document 2 discloses that a recycled pulp section for separating recycled paper to prepare recycled pulp, a deinked pulp section for bleaching recycled pulp to prepare deinked pulp, and paper for deinked pulp. A used paper processing apparatus that integrally includes a papermaking section for preparing recycled paper is described.

特開平１０-３１７２９０号公報JP-A-10-317290 特開２００９−２９９２２８号公報JP 2009-299228 A

上記特許文献１、２では、処理の対象となる古紙として、古紙を裁断した紙片が用いられている。このような所定サイズより小さいサイズに裁断された紙片は離解が容易であるために、再生パルプの製造に適している。しかし、Ａ４，Ｂ５等といった所定サイズ以上の古紙を裁裁断紙片と同様の方法で処理しても、効率よく再生パルプを製造することができない。 In Patent Documents 1 and 2, a piece of paper obtained by cutting waste paper is used as the waste paper to be processed. Since a piece of paper cut into a size smaller than the predetermined size is easy to disaggregate, it is suitable for the production of recycled pulp. However, recycled paper cannot be efficiently produced even if waste paper of a predetermined size or more such as A4, B5, etc. is processed in the same manner as the cut paper pieces.

本発明は上記した課題を解決するものであり、所定サイズ以上の古紙を、効率よく離解処理することの可能な再生パルプ製造装置、及び該再生パルプ製造装置を備えた古紙再生処理装置の提供を目的とする。 The present invention solves the above-described problems, and provides a recycled pulp production apparatus capable of efficiently disaggregating used paper of a predetermined size or more, and a used paper recycling treatment apparatus equipped with the recycled pulp production apparatus. Objective.

上記目的を達成するために、請求項１に記載の再生パルプ製造装置は、古紙原料を給水部から供給された水とともに攪拌羽根により攪拌する攪拌槽と、攪拌槽に古紙原料を供給する古紙原料供給部と、各部の動作を制御する制御部とを備えた再生パルプ製造装置であって、古紙原料供給部には、切断機器によって切断された細断紙を供給する細断紙供給部と、細断紙より大きい粗紙を供給する粗紙供給部とを設けてなり、制御部は、攪拌槽に粗紙供給部から粗紙を供給した場合には、細断紙供給部から細断紙を供給した場合に比較して、攪拌羽根の回転数を所定の回転数まで上昇させるのに要する時間を長くするよう制御する構成にしてある。 In order to achieve the above-mentioned object, the recycled pulp manufacturing apparatus according to claim 1 includes a stirring tank that stirs the used paper raw material with water supplied from a water supply unit by a stirring blade, and a used paper raw material that supplies the used paper raw material to the stirring tank. Recycled pulp manufacturing apparatus comprising a supply unit and a control unit that controls the operation of each unit, the waste paper raw material supply unit, a shredded paper supply unit that supplies shredded paper cut by a cutting device, A rough paper supply unit that supplies coarse paper larger than the shredded paper, and when the rough paper is supplied from the rough paper supply unit to the agitation tank, the control unit supplies the shredded paper from the shredded paper supply unit. Compared to the case where the pressure is supplied, the time required for increasing the rotational speed of the stirring blade to a predetermined rotational speed is controlled to be longer.

また、請求項２記載の発明は、請求項１記載の再生パルプ製造装置において、制御部は、攪拌槽に粗紙供給部から粗紙を供給した場合に、攪拌羽根の回転を正回転と逆回転を繰り返すよう制御するものである。 The invention according to claim 2 is the recycled pulp manufacturing apparatus according to claim 1, wherein the control unit reverses the rotation of the stirring blade to the normal rotation when the coarse paper is supplied from the coarse paper supply unit to the stirring tank. It controls to repeat the rotation.

そして、請求項３に記載の発明は、請求項１又は請求項２に記載の再生パルプ製造装置において、制御部は、古紙原料供給部から攪拌槽への古紙原料の供給を、所定量ずつ複数回に分割して行うよう制御するものである。 According to a third aspect of the present invention, in the recycled pulp manufacturing apparatus according to the first or second aspect, the control unit performs a plurality of predetermined amount of the used paper raw material supply from the used paper raw material supply unit to the stirring tank. It is controlled so as to be divided into times.

更に、請求項４に記載の発明は、請求項１乃至請求項３のいずれか一項に記載の再生パルプ製造装置において、制御部は、給水部から攪拌槽への給水を、所定量ずつ複数回に分割して行うよう制御するものである。   Furthermore, the invention according to claim 4 is the recycled pulp manufacturing apparatus according to any one of claims 1 to 3, wherein the control unit supplies a plurality of water supplies from the water supply unit to the stirring tank by a predetermined amount. It is controlled so as to be divided into times.

更に、請求項５に記載の発明は、請求項１乃至請求項４のいずれか一項に記載の再生パルプ製造装置において、給水部は攪拌槽の上部に設けられてなり、該給水部に攪拌槽の内壁面に向けて水を放出する放出部が形成されているものである。 Furthermore, the invention according to claim 5 is the recycled pulp manufacturing apparatus according to any one of claims 1 to 4, wherein the water supply unit is provided in an upper part of the stirring tank, and the water supply unit is stirred. The discharge part which discharges | emits water toward the inner wall face of a tank is formed.

そして、請求項６に記載の発明は、古紙原料を給水部から供給された水とともに攪拌羽根により攪拌し離解処理を行うための攪拌槽と、攪拌槽に古紙原料を供給する古紙原料供給部と、各部の動作を制御する制御部とを備えた再生パルプ製造装置であって、少なくとも、使用者が離解処理における攪拌羽根の回転数を予め設定された複数の異なる設定回転数の中から選択する回転数選択手段と、使用者が離解処理における水に対する古紙原料の濃度を予め設定された複数の異なる設定濃度の中から選択する濃度選択手段とのいずれかの選択手段を備えており、制御部は、回転数選択手段によって所定の設定回転数が選択されると、選択された設定回転数に応じて攪拌羽根を回転するよう制御し、濃度選択手段によって所定の設定濃度が選択されると、選択された設定濃度に応じて離解処理の際の古紙原料の濃度を調整するものである。 The invention described in claim 6 is a stirrer tank for stirring and disaggregating the used paper raw material together with water supplied from the water supply unit with a stirring blade, and a used paper raw material supplying unit for supplying the used paper raw material to the stirring tank, A regenerated pulp manufacturing apparatus comprising a control unit that controls the operation of each unit, and at least the user selects the number of rotations of the stirring blade in the disaggregation process from a plurality of different set rotation speeds set in advance. The control unit includes any one of a rotation number selection unit and a concentration selection unit that allows the user to select a concentration of the used paper raw material with respect to water in the disaggregation process from a plurality of different preset concentrations. When a predetermined set rotational speed is selected by the rotational speed selecting means, the stirring blade is controlled to rotate according to the selected set rotational speed, and the predetermined set concentration is selected by the concentration selecting means. That when, and adjusts the concentration of the used paper material during the maceration process according to the setting concentration chosen.

更に、請求項７に記載の発明は、請求項１乃至請求項６のいずれか一項に記載の再生パルプ製造装置と、前記再生パルプ製造装置で製造された再生パルプ含有液を抄紙する抄紙装置とを備えた古紙再生処理装置に関するものである。   Furthermore, the invention according to claim 7 is a papermaking apparatus for papermaking the recycled pulp manufacturing apparatus according to any one of claims 1 to 6 and the recycled pulp-containing liquid manufactured by the recycled pulp manufacturing apparatus. And a used paper recycling apparatus.

請求項１に記載の再生パルプ製造装置によれば、制御部は、攪拌槽に粗紙供給部から粗紙を供給した場合には、細断紙供給部から細断紙を供給した場合に比較して、攪拌羽根の回転数を所定の回転数まで上昇させるのに要する時間を短くするよう制御するので、攪拌槽に粗紙供給部からの粗紙が供給された際には、攪拌羽根の回転数を緩やかに上昇させることで、粗紙が給水部から供給された水に未だよく馴染んでない状態において攪拌羽根を高速回転した場合に生じる攪拌槽内の水、千切れた古紙原料の飛散や、攪拌羽根の空気を巻き込みながらの回動等を防止し、効率よく離解処理することができる。 According to the regenerated pulp manufacturing apparatus according to claim 1, when the control unit supplies the coarse paper from the coarse paper supply unit to the agitation tank, the control unit compares with the case where the fine paper is supplied from the shredded paper supply unit. Since the time required to increase the rotation speed of the stirring blade to a predetermined rotation speed is controlled, when the rough paper from the rough paper supply unit is supplied to the stirring tank, By gradually increasing the rotational speed, the water in the stirring tank generated when the stirring blade is rotated at a high speed in a state where the rough paper is not yet well-adapted to the water supplied from the water supply unit, Rotation while entraining the air of the stirring blade is prevented, and the disaggregation process can be performed efficiently.

また、請求項２に記載の再生パルプ製造装置によれば、制御部は、攪拌槽に粗紙供給部から粗紙を供給した場合に、攪拌羽根の回転を正回転と逆回転を繰り返すよう制御するので、粗紙と水とを効率よく容易に接触させ、短時間で双方を馴染ませることができ、一方向のみの回転の場合に比較して離解処理に要する時間を短縮可能である。 Further, according to the regenerated pulp manufacturing apparatus according to claim 2, the control unit controls the rotation of the stirring blade to repeat the normal rotation and the reverse rotation when the coarse paper is supplied from the coarse paper supply unit to the stirring tank. Therefore, the rough paper and water can be efficiently and easily brought into contact with each other in a short time, and the time required for the disaggregation process can be shortened as compared with the case of rotation in only one direction.

そして、請求項３に記載の再生パルプ製造装置によれば制御部は、古紙原料供給部から攪拌槽への古紙原料の供給を、所定量ずつ複数回に分割して行うよう制御するので、徐々に供給される古紙原料を水によく馴染ませることができ、離解処理時間の短縮化が可能である。   According to the regenerated pulp manufacturing apparatus of the third aspect, the control unit controls the supply of the used paper raw material from the used paper raw material supply unit to the agitation tank so as to be divided into a plurality of times by a predetermined amount. The used paper raw material supplied to the water can be made familiar with water, and the disaggregation processing time can be shortened.

更に、請求項４に記載の再生パルプ製造装置によれば、制御部は、給水部から攪拌槽への給水を、所定量ずつ複数回に分割して行うよう制御するので、徐々に供給される水と古紙原料とをよく馴染ませることができ、離解処理時間の短縮化が可能である。   Furthermore, according to the regenerated pulp manufacturing apparatus according to claim 4, the control unit controls the water supply from the water supply unit to the agitation tank to be performed in a predetermined amount divided into a plurality of times, so that it is gradually supplied. Water and used paper raw materials can be mixed well, and the disaggregation processing time can be shortened.

更に、請求項５に記載の再生パルプ製造装置によれば給水部は攪拌槽の上部に設けられてなり、該給水部に攪拌槽の内壁面に向けて水を放出する放出部が形成されているので、古紙原料の攪拌槽への供給時や離解処理中に攪拌槽の内壁面に付着した未離解または離解途中の古紙原料を、攪拌槽の内壁面から除去し、離解処理を進めることができる。   Furthermore, according to the regenerated pulp manufacturing apparatus according to claim 5, the water supply part is provided at the upper part of the stirring tank, and the discharge part for discharging water toward the inner wall surface of the stirring tank is formed in the water supply part. Therefore, when the waste paper raw material is supplied to the agitation tank or during the disaggregation process, undissolved or disaggregated waste paper raw material attached to the inner wall surface of the agitation tank can be removed from the inner wall surface of the agitation tank, and the disaggregation process can proceed. it can.

更に、請求項６に記載の再生パルプ製造装置によれば、少なくとも回転数選択手段と、濃度選択手段とのいずれかの選択手段を備えており、制御部は、回転数選択手段によって所定の設定回転数が選択されると、選択された設定回転数に応じて攪拌羽根を回転するよう制御し、濃度選択手段によって所定の設定濃度が選択されると、選択された設定濃度に応じて離解処理の際の古紙原料の濃度を調整するので、使用者の希望する離解条件に応じて攪拌羽根の回転数、及び水に対する古紙原料の濃度の少なくともいずれかを選択することで、攪拌羽根の回転に伴う振動、騒音を低減した運転を行うことが可能となる。 Furthermore, according to the regenerated pulp manufacturing apparatus according to claim 6, at least one of the selection means of the rotation speed selection means and the concentration selection means is provided, and the control unit is set to a predetermined setting by the rotation speed selection means. When the number of rotations is selected, the stirring blade is controlled to rotate according to the selected set number of rotations. When a predetermined set concentration is selected by the concentration selection means, the disaggregation process is performed according to the selected set concentration. Since the concentration of the used paper raw material is adjusted, the rotation speed of the stirring blade can be adjusted by selecting at least one of the rotation speed of the stirring blade and the concentration of the used paper raw material with respect to water according to the disaggregation condition desired by the user. It is possible to perform operation with reduced vibration and noise.

また、請求項７に記載の古紙再生処理装置によれば、請求項１乃至請求項６のいずれか一項に記載の再生パルプ製造装置と、前記再生パルプ製造装置で製造された再生パルプ含有液を抄紙する抄紙装置とを備えたので、請求項１乃至請求項６の再生パルプ製造装置で離解処理を効率よく行い、得られた再生パルプを含有する再生パルプ液を抄紙装置で抄紙し、再生紙を短時間で、または所望する条件に従って製造することが可能である。 Moreover, according to the used paper reproduction | regeneration processing apparatus of Claim 7, the recycled pulp containing liquid manufactured with the recycled pulp manufacturing apparatus as described in any one of Claim 1 thru | or 6, and the said recycled pulp manufacturing apparatus And a papermaking device for making paper, so that the regenerated pulp production device according to claims 1 to 6 can be efficiently disaggregated, and the regenerated pulp liquid containing the obtained regenerated pulp is made with a papermaking device and regenerated. It is possible to produce the paper in a short time or according to the desired conditions.

本発明の一実施形態に係る古紙再生処理装置の構成概略図である。1 is a schematic configuration diagram of a used paper recycling processing apparatus according to an embodiment of the present invention. 前記古紙再生処理装置の再生パルプ製造部の構成概略図である。It is the structure schematic of the recycled pulp manufacturing part of the said used paper reproduction | regeneration processing apparatus. 前記再生パルプ製造部の給水部の斜視図である。It is a perspective view of the water supply part of the said recycled pulp manufacturing part. 前記古紙再生処理装置の脱墨パルプ部の平面図及び断面図である。It is the top view and sectional drawing of the deinking pulp part of the said used paper reproduction | regeneration processing apparatus. 前記古紙再生処理装置の抄紙部及び仕上部のカレンダー部の概略斜視図である。It is a schematic perspective view of the papermaking part and the finishing calendar part of the used paper recycling apparatus. 前記再生パルプ製造部のパルパーの攪拌羽根の回転数の上昇割合を示す図である。It is a figure which shows the raise rate of the rotation speed of the stirring blade of the pulper of the said recycled pulp manufacturing part. 本発明の他の実施形態に係る再生パルプ製造装置の操作パネルを示す図である。It is a figure which shows the operation panel of the recycled pulp manufacturing apparatus which concerns on other embodiment of this invention. 前記再生パルプ製造装置のパルパーの攪拌羽根の回転数の上昇割合を示す図である。It is a figure which shows the raise rate of the rotation speed of the stirring blade of the pulper of the said recycled pulp manufacturing apparatus.

（第１の実施形態）
以下、本発明の実施の形態を図面に基づいて説明する。図１は、本発明にかかる古紙処理装置の構成概略図である。図１において、古紙再生処理装置１００は、再生パルプ製造部１、脱墨パルプ部２、抄紙部３、仕上げ部４、排水処理部５を一体的に備えるものである。再生パルプ製造部１は、古紙原料６を離解して再生パルプを製造するものであり、脱墨パルプ部２は、再生パルプ製造部１において製造された再生パルプを脱墨するものであり、抄紙部３は、脱墨部２において得られた脱墨パルプを抄紙し、抄紙により得られた湿紙の乾燥を行うものであり、仕上げ部４は、抄紙部３において湿紙の乾燥を行ったものを裁断等することにより仕上げを行って再生紙７を得るものである。 (First embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a used paper processing apparatus according to the present invention. In FIG. 1, a used paper recycling apparatus 100 is integrally provided with a recycled pulp manufacturing unit 1, a deinking pulp unit 2, a paper making unit 3, a finishing unit 4, and a waste water processing unit 5. The regenerated pulp manufacturing unit 1 disaggregates the waste paper raw material 6 to manufacture regenerated pulp, and the deinking pulp unit 2 deinks the regenerated pulp manufactured in the regenerated pulp manufacturing unit 1, Part 3 is for making the deinked pulp obtained in the deinking part 2 and drying the wet paper obtained by paper making. The finishing part 4 is for drying the wet paper in the paper making part 3. The recycled paper 7 is obtained by finishing the material by cutting it.

(再生パルプ製造部)
図２は、再生パルプ製造部１の構成概略図である。再生パルプ製造部１は、古紙原料６を離解して再生パルプを製造するものであり、再生パルプ製造装置Ｋにより構成される。図２に示すように、再生パルプ製造装置Ｋは、古紙原料供給部９、計測部１７、パルパー１８、制御部(図示省略)を備えている。 (Recycled pulp production department)
FIG. 2 is a schematic configuration diagram of the recycled pulp manufacturing unit 1. The regenerated pulp manufacturing unit 1 separates the waste paper raw material 6 to manufacture regenerated pulp, and is configured by a regenerated pulp manufacturing apparatus K. As shown in FIG. 2, the recycled pulp manufacturing apparatus K includes a used paper raw material supply unit 9, a measurement unit 17, a pulper 18, and a control unit (not shown).

古紙原料６としては、所定サイズ以上の大きさを有する古紙原料６である粗紙６６と、所定サイズより小さいサイズの古紙原料６である細断紙６７との双方を処理可能である。粗紙６６にはＡ４、Ｂ５等といった定型紙が含まれ、更に、正方形等の定型紙以外の古紙原料６も含まれる。また、細断紙６７にはシュレッダー等の切断機器によって所定サイズより小さいサイズに切断された古紙原料６が含まれ、更に、本実施形態には含まれないが、切断機器により切断を行っていない古紙原料６を利用することも可能である。
As the used paper raw material 6, it is possible to process both a rough paper 66 which is a used paper raw material 6 having a size equal to or larger than a predetermined size and a shredded paper 67 which is a used paper raw material 6 having a size smaller than a predetermined size. The rough paper 66 includes regular paper such as A4 and B5, and further includes waste paper raw material 6 other than regular paper such as square. Further, the shredded paper 67 includes the waste paper raw material 6 that has been cut to a size smaller than a predetermined size by a cutting device such as a shredder, and is not included in the present embodiment, but is not cut by the cutting device. It is also possible to use the waste paper raw material 6.

古紙原料供給部９は、粗紙６６を供給する粗紙供給部１１と、細断紙６７を供給する細断紙供給部１２とを備えている。粗紙供給部１１には、粗紙６６を載置する粗紙載置台１１１と、粗紙載置台１１１を昇降する昇降手段(図示省略)と、粗紙載置台１１１上に載置された複数の粗紙６６のうち最上位の粗紙６６を計測部１７へと搬送する給紙ローラ１１２と、粗紙載置台１１１が最下位置にある状態または他の所定の位置において該粗紙載置台１１１上に所定量の粗紙６６が載置されているか否かを検知する粗紙量検知手段１１４とを設けている。粗紙量検知手段１１４はロードセル、光センサ等により構成される。 The used paper raw material supply unit 9 includes a rough paper supply unit 11 that supplies the rough paper 66 and a shredded paper supply unit 12 that supplies the shredded paper 67. The rough paper supply unit 11 includes a rough paper placing table 111 on which the rough paper 66 is placed, a lifting / lowering unit (not shown) for raising and lowering the rough paper placing table 111, and a plurality of pieces placed on the rough paper placing table 111. Of the coarse paper 66, the paper feed roller 112 that conveys the uppermost coarse paper 66 to the measuring unit 17, and the coarse paper placement table 111 in the lowest position or other predetermined position. A rough paper amount detecting means 114 for detecting whether or not a predetermined amount of the rough paper 66 is placed on 111 is provided. The coarse paper amount detection means 114 is composed of a load cell, an optical sensor, and the like.

細断紙供給部１２には、細断紙６７を貯留するシュレッダータンク１２１を設けており、該シュレッダータンク１２１の底部には細断紙６７の排出口１２２が形成されている。排出口１２２には、図２において二点鎖線で示すように揺動することで開閉自在に構成された開閉部材１２４を設けており、開閉部材１２４の上方には、開閉部材１２４の開放時にシュレッダータンク１２１内の細断紙６７を下方に排出する排出装置１２５を備えている。排出装置１２５の構成は、細断紙６７を下方に排出可能であればよく、特に限定されないが、図２では一対の回転体１２７を示しており、該回転体１２７は、双方の回転体１２７の間に細断紙６７を挟持し、回転することで細断紙６７を下方に排出するようになっている。 The shredded paper supply unit 12 is provided with a shredder tank 121 for storing the shredded paper 67, and a discharge port 122 for the shredded paper 67 is formed at the bottom of the shredder tank 121. The discharge port 122 is provided with an opening / closing member 124 that can be opened and closed by swinging as shown by a two-dot chain line in FIG. 2. A shredder is provided above the opening / closing member 124 when the opening / closing member 124 is opened. A discharge device 125 for discharging the shredded paper 67 in the tank 121 downward is provided. The configuration of the discharge device 125 is not particularly limited as long as the shredded paper 67 can be discharged downward. FIG. 2 shows a pair of rotating bodies 127, and the rotating bodies 127 are both rotating bodies 127. The shredded paper 67 is sandwiched between them and rotated to discharge the shredded paper 67 downward.

計測部１７は、粗紙供給部１１及び細断紙供給部１２より供給された古紙原料６の重量を計測するものである。計測部１７は、排出口１２２の下方、且つ、給紙ローラ１１２による粗紙６６の搬送方向下流側のやや低い位置に配設してある。計測部１７は、粗紙６６および細断紙６７を受け止める受皿１７１を備えている。 The measurement unit 17 measures the weight of the used paper raw material 6 supplied from the rough paper supply unit 11 and the shredded paper supply unit 12. The measurement unit 17 is disposed at a slightly lower position below the discharge port 122 and downstream in the conveyance direction of the rough paper 66 by the paper feed roller 112. The measuring unit 17 includes a tray 171 that receives the rough paper 66 and the shredded paper 67.

受皿１７１は、一回のバッチ式離解処理において処理を行う古紙原料６の全量を載置可能であってもよいが、古紙原料６の全量のうちの一部を載置可能な大きさとしてもよい。即ち、例えば、一回のバッチ式離解処置で古紙原料６を７００ｇ処理するとした場合に、該７００ｇのうちの一部である１００ｇを載置可能な程度の大きさとし、７回の計測及び計測した古紙原料６のパルパー１８への投入を繰り返し行うことで、合計７００ｇの古紙原料６を計測するよう構成してもよい。 The tray 171 may be capable of placing the entire amount of the used paper raw material 6 to be processed in one batch-type disaggregation process, but may have a size capable of placing a part of the total amount of the used paper raw material 6. Good. That is, for example, when 700 g of waste paper raw material 6 is processed by one batch-type disaggregation treatment, 100 g which is a part of the 700 g is set to a size that can be placed, and measurement and measurement are performed seven times. A total of 700 g of the used paper raw material 6 may be measured by repeatedly putting the used paper raw material 6 into the pulper 18.

同様に、計測部１７において計測可能な重量に関しても、一回のバッチ式離解処理において処理を行う古紙原料６の全量を計測可能な計測機器を使用してもよいが、古紙原料６の全量のうちの一部のみを計測可能とする小型の計測器を用い、複数回に分割した場合にのみ全量を計測可能な構成としてもよい。 Similarly, regarding the weight measurable in the measuring unit 17, a measuring device capable of measuring the total amount of the used paper raw material 6 to be processed in one batch type disaggregation process may be used. It is good also as a structure which can measure the whole quantity only when it uses the small measuring device which can measure only some of them, and it divides | segments into multiple times.

受皿１７１は、図２において二点鎖線で示すように、水平姿勢からパルパー１８へ向けて傾倒する傾倒姿勢にまで傾倒可能に構成され、受皿１７１を傾動させるモータ等の駆動手段（図示省略）を有する。また、受皿１７１は傾倒姿勢において、低位置となる側には側壁を設けておらず、受皿１７１を傾倒するのみで古紙原料６をパルパー１８へ投下可能となっている。 As shown by a two-dot chain line in FIG. 2, the tray 171 is configured to be tiltable from a horizontal posture to a tilted posture tilting toward the pulper 18, and driving means (not shown) such as a motor that tilts the tray 171. Have. Further, in the tilting posture, the tray 171 is not provided with a side wall on the low position side, and the used paper raw material 6 can be dropped onto the pulper 18 only by tilting the tray 171.

パルパー１８は、計測部１７より投入された古紙原料６を水及び離解促進剤の液体中において、繊維、つまり再生パルプにまで離解するものであり、攪拌槽１８１、給水部１８２、離解促進剤供給部１８３、攪拌手段１８９を備えている。攪拌槽１８１は、給水部１８２から供給された水及び古紙原料６を含む液体を貯留可能な大きさを有する。 The pulper 18 disaggregates the waste paper raw material 6 input from the measuring unit 17 into fibers, that is, recycled pulp, in the liquid of water and a disaggregation accelerator. The stirrer 181, the water supply unit 182, and the disaggregation accelerator supply A part 183 and stirring means 189. The agitation tank 181 has a size capable of storing the liquid supplied from the water supply unit 182 and the liquid containing the waste paper raw material 6.

給水部１８２は、水道水等の上水の供給部(図示省略)、及び後述する排液処理部５の白水タンク５４に接続され、これら上水または白水タンク５４内に貯留する抄紙部３で抄紙することで生じた白水のうち、いずれかの水を攪拌槽１８１に供給するようになっている。該給水部１８２は、攪拌槽１８１の内壁面上部に複数設けられており、給水部１８２には、前記水を攪拌槽１８１の内壁面に向けて放出する放出部１０を備えている。 The water supply unit 182 is connected to a supply unit (not shown) of tap water or the like, and a white water tank 54 of the drainage treatment unit 5 described later, and is a paper making unit 3 that stores the water in the clean water or the white water tank 54. One of the white water generated by papermaking is supplied to the stirring tank 181. A plurality of the water supply units 182 are provided at the upper part of the inner wall surface of the stirring tank 181, and the water supply unit 182 includes a discharge unit 10 that discharges the water toward the inner wall surface of the stirring tank 181.

放出部１０の構成は、前記水を攪拌槽１８１の内壁面に向けて放出可能であれば、特に限定されないが、図３には、その一例として、放出部１０を含む給水部１８２の拡大斜視図を示している。図３に示す給水部１８２は、放出部本体１５及び下部が屈曲した当て板１４を備えており、この放出部本体１５及び当て板１４は攪拌槽１８１の内壁面に螺子２５により螺着される。 Although the structure of the discharge part 10 will not be specifically limited if the said water can be discharged toward the inner wall face of the stirring tank 181, In FIG. 3, the expanded perspective view of the water supply part 182 containing the discharge part 10 as an example The figure is shown. The water supply unit 182 shown in FIG. 3 includes a discharge unit main body 15 and a contact plate 14 having a bent lower part. The discharge unit main body 15 and the contact plate 14 are screwed to the inner wall surface of the stirring tank 181 by screws 25. .

放出部本体１５には、攪拌槽１８１の内壁面に貫通して形成された給水用孔部５１に位置合わせして、給水用孔１６を設けており、配管５２の端部が給水用孔１６に螺合することで放出部本体１５を攪拌槽１８１の内壁面に固定している。放出部本体１５の給水用孔１６に対向する側面は開放しており、当て板１４によりこの開放した側面が閉塞されている。放出部本体１５の内部には、配管５４からの水が流通する空間部１３が形成されている。 The discharge portion main body 15 is provided with a water supply hole 16 in alignment with a water supply hole 51 formed through the inner wall surface of the agitation tank 181, and an end of the pipe 52 is the water supply hole 16. The discharge part main body 15 is fixed to the inner wall surface of the agitation tank 181 by screwing into the inner wall of the stirring tank 181. A side surface of the discharge unit main body 15 facing the water supply hole 16 is open, and the open side surface is closed by the contact plate 14. A space portion 13 through which water from the pipe 54 circulates is formed inside the discharge portion main body 15.

放出部本体１５の底部には、空間部１３を流通した水を放出するための放出部１０が開口して形成され、屈曲した当て板１４の下部により、放出部１０から放出された水を攪拌槽１８１の内壁面に案内し、配管５４から空間部１３に所定の流速で水が供給されることで、内壁面の広い範囲に放出部１０から放出された水が広がりつつ内壁面を伝って下方へと流下し、これにより攪拌槽１８１の内壁面に付着した細断紙６７、粗紙６６、離解により得られた再生パルプ、離解促進剤等を洗浄するようになっている。 At the bottom of the discharge unit main body 15, a discharge unit 10 is formed to open the water flowing through the space 13, and the water released from the discharge unit 10 is stirred by the lower part of the bent plate 14. Guided to the inner wall surface of the tank 181 and supplied with water at a predetermined flow rate from the pipe 54 to the space portion 13, the water discharged from the discharge portion 10 spreads over the inner wall surface over a wide area of the inner wall surface. The shredded paper 67 and the coarse paper 66 adhering to the inner wall surface of the agitation tank 181 and the recycled pulp obtained by disaggregation, the disaggregation accelerator, and the like are thereby washed down.

図２に示すように、離解促進剤供給部１８３は、攪拌槽１８１の上方に設けられている。離解促進剤供給部１８３から供給される離解促進剤としては、水酸化ナトリウム、炭酸ナトリウム、ケイ酸ナトリウム、水酸化カリウム、亜硫酸ナトリウムなどのアルカリ類から選ばれる１種以上若しくはその水溶液等を用いることができ、更に、スルファミン酸、塩酸、硫酸、リン酸、硫酸アルミニウムなどの酸類、次亜塩素酸ナトリウム、亜塩素酸ナトリウム、過酸化水素などの酸化剤、界面活性剤、漂白剤、ＰＨ安定剤、キレート剤、分散剤などを補助的に用いることもできる。 As shown in FIG. 2, the disaggregation accelerator supply unit 183 is provided above the stirring tank 181. As the disaggregation accelerator supplied from the disaggregation accelerator supply unit 183, one or more selected from alkalis such as sodium hydroxide, sodium carbonate, sodium silicate, potassium hydroxide, sodium sulfite, or an aqueous solution thereof is used. In addition, acids such as sulfamic acid, hydrochloric acid, sulfuric acid, phosphoric acid, and aluminum sulfate, oxidizing agents such as sodium hypochlorite, sodium chlorite, and hydrogen peroxide, surfactants, bleaching agents, and PH stabilizers Further, chelating agents, dispersing agents and the like can be used supplementarily.

攪拌手段１８９は、攪拌槽１８１の底部に設けられ、古紙原料６を給水部１８２から給水された水とともに攪拌し離解するための攪拌羽根１８４と、前記攪拌羽根１８４を回転駆動するモータ等の駆動手段１８８とを備えている。 The stirring means 189 is provided at the bottom of the stirring tank 181 and is driven by a stirring blade 184 for stirring and separating the waste paper raw material 6 together with water supplied from the water supply unit 182 and a motor for driving the stirring blade 184 to rotate. Means 188.

また、図示は省略するが、攪拌槽１８１には、該攪拌槽１８１内に貯留する液体を所定温度まで加温するためのヒータおよび温度センサを設けてある。 Although not shown, the agitation tank 181 is provided with a heater and a temperature sensor for heating the liquid stored in the agitation tank 181 to a predetermined temperature.

更に、攪拌槽１８１の底部には、パルパー１８にて古紙原料６を離解することにより製造された再生パルプ、水等を含有する再生パルプ含有液を取り出す再生パルプ含有液取出部１８７を設けている。再生パルプ含有液取出部１８７は、開閉弁２０８ａ及びポンプ２０９ａを備えた配管２０７ａに接続されており、再生パルプ含有液取出部１８７からポンプ２０９ａにより取り出した再生パルプ含有液を脱墨部２又は抄紙部３へ送るようになっている。 Furthermore, the bottom part of the stirring tank 181 is provided with a regenerated pulp-containing liquid take-out part 187 for taking out a regenerated pulp-containing liquid containing regenerated pulp, water and the like produced by separating the used paper raw material 6 with the pulper 18. . The recycled pulp-containing liquid extraction unit 187 is connected to a pipe 207a including an on-off valve 208a and a pump 209a, and the recycled pulp-containing liquid extracted from the recycled pulp-containing liquid extraction unit 187 by the pump 209a is removed from the deinking unit 2 or papermaking. It is to be sent to part 3.

制御部は、古紙再生処理装置１００全体の動作を制御する制御部(図示省略)の一部として構成され、制御部は、攪拌槽１８１に粗紙供給部１１から粗紙６６を供給した場合には、細断紙供給部１２から細断紙６７を供給した場合に比較して、攪拌羽根１８４の回転数を所定の回転数まで上昇させるまでの時間を長くするよう制御する。一方、粗紙６６を攪拌槽１８１に投入した場合には、細断紙６７を投入した場合よりも攪拌羽根１８４の回転数を所定の回転数まで上昇させるまでの時間を長くするよう制御するとともに、モータの回動を正回転と逆回転とを繰り返すよう制御する。 The control unit is configured as a part of a control unit (not shown) that controls the operation of the entire used paper recycling processing apparatus 100, and the control unit is configured to supply the coarse paper 66 from the coarse paper supply unit 11 to the stirring tank 181. Controls to increase the time required to increase the rotational speed of the stirring blade 184 to a predetermined rotational speed as compared with the case where the shredded paper 67 is supplied from the shredded paper supply unit 12. On the other hand, when the coarse paper 66 is put into the stirring tank 181, control is performed so that the time until the rotation speed of the stirring blade 184 is increased to a predetermined rotation speed is longer than when the shredded paper 67 is fed. The rotation of the motor is controlled to repeat forward rotation and reverse rotation.

更に、制御部は、細断紙供給部１２及び粗紙供給部１１から一回のバッチ式離解処理において処理を行う古紙原料６の一部となる所定量ずつの古紙原料６を複数回に亘って徐々に供給するよう開閉部材１２４、排出装置１２５、給紙ローラ１１２及び受皿１７１を傾倒する駆動手段を制御する。また、給水部１８２からの離解用の水を所定量ずつ徐々に攪拌槽１８１に供給するよう制御する。 Further, the control unit supplies a predetermined amount of the used paper raw material 6 as a part of the used paper raw material 6 to be processed in one batch-type disaggregation processing from the shredded paper supply unit 12 and the coarse paper supply unit 11 a plurality of times. The driving means for tilting the opening / closing member 124, the discharge device 125, the paper feed roller 112, and the tray 171 is controlled so as to be gradually supplied. Further, control is performed so that water for disaggregation from the water supply unit 182 is gradually supplied to the agitation tank 181 by a predetermined amount.

また、制御部は、細断紙６７及び粗紙６６の双方を古紙原料６として離解処理を行う場合には、いずれかから処理を行うよう制御してもよいが、まず細断紙供給部１２からの細断紙６７を離解処理するよう制御し、その後粗紙供給部１１からの粗紙６６を攪拌槽１８１に投入して離解処理するよう制御を行うことが好ましい。 In addition, when the disaggregation process is performed using both the shredded paper 67 and the rough paper 66 as the waste paper raw material 6, the control unit may control to perform the processing from either one, but first, the shredded paper supply unit 12 It is preferable to perform control so that the shredded paper 67 from the paper is disaggregated, and then the rough paper 66 from the rough paper supply unit 11 is put into the agitation tank 181 and disaggregated.

(脱墨パルプ部)
図１に示すように、 脱墨パルプ部２は、脱墨前希釈部２１及び脱墨部２２を備え、各部の間には配管、ポンプ等からなる移送部(図示省略)を設けている。 (Deinking pulp section)
As shown in FIG. 1, the deinking pulp unit 2 includes a pre-deinking dilution unit 21 and a deinking unit 22, and a transfer unit (not shown) including a pipe and a pump is provided between the units.

脱墨前希釈部２１は、再生パルプ製造装置Ｋから送られた再生パルプ含有液を脱墨に適した繊維濃度に希釈するものであり、希釈用水および脱墨剤としての界面活性剤等を投入する希釈液供給部(図示省略)を備えている。   The pre-deinking diluting unit 21 dilutes the regenerated pulp-containing liquid sent from the regenerated pulp production apparatus K to a fiber concentration suitable for deinking, and inputs dilution water, a surfactant as a deinking agent, and the like. A diluent supply unit (not shown) is provided.

尚、脱墨部２２による脱墨処理は省略することも可能であり、脱墨処理を省略する場合には、再生パルプ製造装置Ｋから送られた再生パルプ含有液を、脱墨前希釈部２１で抄紙に適する繊維濃度に希釈する。 Note that the deinking process by the deinking unit 22 can be omitted. When the deinking process is omitted, the regenerated pulp-containing liquid sent from the regenerated pulp manufacturing apparatus K is used as the pre-deinking dilution unit 21. Dilute to fiber concentration suitable for papermaking.

図４（ａ）に脱墨部２２の平面図を、同図（ｂ）に図４（ａ）のＡ−Ａ線矢視断面図を示す。脱墨部２２は、フローテータと呼ばれ、インク成分、トナー成分等の印刷成分を再生パルプ含有液から分離して脱墨パルプを製造するためのものであり、再生パルプ含有液流通槽２２１、ブレード２２２及び気泡排出槽２２３を備えている。  FIG. 4A shows a plan view of the deinking section 22, and FIG. 4B shows a cross-sectional view taken along line AA in FIG. 4A. The deinking unit 22 is called a flowator and is used for producing a deinked pulp by separating printing components such as an ink component and a toner component from a recycled pulp-containing liquid. A blade 222 and a bubble discharge tank 223 are provided.

再生パルプ含有液流通槽２２１は、脱墨前希釈部２１で希釈液の供給により所定濃度に調整された再生パルプ含有液を流通させるものである。再生パルプ含有液流通槽２２１内は、複数の仕切壁２２４により複数の脱墨室２２５に区画されており、図４（ｂ）に示すように、仕切り壁２２４の左方または右方が交互に開口することで全ての脱墨室２２５は連通している。 The recycled pulp-containing liquid distribution tank 221 distributes the recycled pulp-containing liquid adjusted to a predetermined concentration by supplying the diluted liquid in the pre-deinking dilution section 21. The recycled pulp-containing liquid circulation tank 221 is partitioned into a plurality of deinking chambers 225 by a plurality of partition walls 224. As shown in FIG. 4B, the left or right side of the partition walls 224 are alternately arranged. All the deinking chambers 225 communicate with each other by opening.

各脱墨室２２５の底部には、再生パルプ含有液流通槽２２１内を流通する再生パルプ含有液中に、微細な気泡を供給するための気泡供給部２２６を設けるとともに、各仕切り壁２２４の双方の面の高さ方向略中央部に温度センサ２２７と、ヒータ２２８とをそれぞれ配置している。また、再生パルプ含有液を再生パルプ含有液流通槽２２１内に流入させる流入部２２９ａと、脱墨処理後生じた脱墨パルプを含有する脱墨パルプ含有液を再生パルプ含有液流通槽２２１外に流出させる流出部２２９ｂとを設けている。 At the bottom of each deinking chamber 225, a bubble supply unit 226 for supplying fine bubbles to the recycled pulp-containing liquid flowing in the recycled pulp-containing liquid circulation tank 221 is provided, and both of the partition walls 224 are provided. A temperature sensor 227 and a heater 228 are respectively arranged at substantially the center in the height direction of the surface. Also, an inflow portion 229a for allowing the recycled pulp-containing liquid to flow into the recycled pulp-containing liquid circulation tank 221 and a deinked pulp-containing liquid containing deinked pulp generated after the deinking treatment are placed outside the recycled pulp-containing liquid circulation tank 221. An outflow portion 229b is provided.

ブレード２２２は、再生パルプ含有液流通槽２２１の上部を浮遊する気泡を、再生パルプ含有液流通槽２２１の周壁を溢流させ気泡排出槽２２３側へ掃き出すためのものであり、再生パルプ含有液流通槽２２１の上方に設けられ、モータ２２２ａの駆動によりガイドレール２２２ｂに案内されつつ往復移動するよう構成されている。 The blade 222 is for sweeping bubbles floating above the regenerated pulp-containing liquid circulation tank 221 over the peripheral wall of the regenerated pulp-containing liquid circulation tank 221, and sweeping out the bubbles to the bubble discharge tank 223 side. It is provided above the tank 221 and is configured to reciprocate while being guided by the guide rail 222b by driving the motor 222a.

図４（ａ）に示すように、気泡排出槽２２３は、再生パルプ含有液流通槽２２１の外周を取り囲むよう平面視ロ字状に設けられ、脱墨の際再生パルプ含有液流通槽２２１内で生じ、ブレード２２２により掃き出された気泡を一旦貯留するようになっている。気泡排出槽２２３には、気泡排出槽２２３内及びブレード２２２等に付着した気泡を洗い流すための水などの洗浄液を噴出する洗浄液噴出部２２３ａを設けている。洗浄液噴出部２２３ａは、気泡排出槽内の壁面の上段部及び中段部の全周に亘って複数配備されている。 As shown in FIG. 4 (a), the bubble discharge tank 223 is provided in a square shape in plan view so as to surround the outer periphery of the recycled pulp-containing liquid circulation tank 221, and in the recycled pulp-containing liquid circulation tank 221 during deinking, The bubbles generated and swept out by the blade 222 are temporarily stored. The bubble discharge tank 223 is provided with a cleaning liquid ejecting section 223a that ejects a cleaning liquid such as water for washing away bubbles attached to the bubble discharge tank 223 and the blade 222 and the like. A plurality of cleaning liquid ejection portions 223a are provided over the entire circumference of the upper and middle steps of the wall surface in the bubble discharge tank.

更に、気泡排出槽２２３は、生じた気泡を消滅させるための消泡部（図示省略）を備えていることが好ましい。消泡部は気泡を消滅させることができればその構造は限定されないが、例えば、温風や熱風を供給する風供給部（図示省略）等が挙げられ、風供給部から気泡に温風又は熱風を吹き付けて気泡の水分を吹き飛ばすことで気泡を消滅させる。かかる風供給部を設ける場合には、風供給部からの温風や熱風を水分含有量の低い乾燥した温風又は熱風とすることがより好ましい。これにより、気泡の水分をより容易に吹き飛ばすことができるからである。 Further, the bubble discharge tank 223 preferably includes a defoaming part (not shown) for eliminating the generated bubbles. The structure of the defoaming part is not limited as long as bubbles can be eliminated. For example, a wind supply part (not shown) that supplies hot air or hot air can be used, and hot air or hot air is supplied from the wind supply part to the bubbles. Air bubbles are extinguished by blowing away the moisture of the air bubbles. In the case where such a wind supply unit is provided, it is more preferable that the warm air or hot air from the wind supply unit is dry hot air or hot air having a low moisture content. Thereby, the water | moisture content of a bubble can be blown away more easily.

気泡排出槽２２３の底部には、該気泡排出槽２２３内に貯留する洗浄液噴出部２２３ａからの洗浄液及び気泡の消滅により生じた液等を含む脱墨排水を取り出す脱墨排水取出部７５を設けており、脱墨排水取出部７５から取り出した脱墨排水は、脱墨排水タンク５３に送られるようになっている。 At the bottom of the bubble discharge tank 223, there is provided a deinking drainage extraction section 75 for taking out deinking drainage containing cleaning liquid from the cleaning liquid ejection section 223a stored in the bubble discharge tank 223, liquid generated by disappearance of bubbles, and the like. The deinking drainage taken out from the deinking drainage extraction unit 75 is sent to the deinking drainage tank 53.

(抄紙部)
図５は、抄紙部３及び仕上部４のカレンダー部４１の概略斜視図である。抄紙部３は、脱墨部２２による脱墨の終了した脱墨パルプ含有液、または脱墨処理を省略した場合には、脱墨前希釈部２１で所定濃度に希釈された再生パルプ含有液を抄紙するものであり、抄紙装置Ｓにより構成される。図５に示すように、抄紙部３は、ヘッドボックス３１、ワイヤー部３２、脱水部３３、ドライヤー部３４からなる。 (Paper making)
FIG. 5 is a schematic perspective view of the papermaking section 3 and the calendar section 41 of the finishing section 4. The paper making unit 3 uses the deinked pulp-containing liquid that has been deinked by the deinking unit 22 or the regenerated pulp-containing liquid diluted to a predetermined concentration by the pre-deinking diluting unit 21 when the deinking process is omitted. Paper making is performed by the paper making apparatus S. As shown in FIG. 5, the paper making unit 3 includes a head box 31, a wire unit 32, a dehydrating unit 33, and a dryer unit 34.

ヘッドボックス３１は、脱墨パルプ含有液または再生パルプ含有液をワイヤー部３２に均一に供給するためのものであり、ヘッドボックス３１の上部は開口しており、下部に脱墨パルプ含有液の供給口３１ａが形成されている。脱墨パルプ含有液の供給口３１ａの長手方向両端部には、ワイヤー部３２のメッシュベルト３２３の両側縁部に沿って所定長さを有するガイド部材３１ｂが片持ち支持されている。ガイド部材３１ｂは、ヘッドボックス３１からワイヤー部３２のメッシュベルト３２３上に供給された脱墨パルプ含有液がメッシュベルト３２３の側縁から外方に流れ落ちるのを防止するようになっている。 The head box 31 is for uniformly supplying the deinked pulp-containing liquid or the regenerated pulp-containing liquid to the wire part 32. The upper part of the head box 31 is open and the deinked pulp-containing liquid is supplied to the lower part. A mouth 31a is formed. Guide members 31b having a predetermined length are cantilevered along both side edges of the mesh belt 323 of the wire portion 32 at both longitudinal ends of the supply port 31a for the deinked pulp-containing liquid. The guide member 31 b is configured to prevent the deinked pulp-containing liquid supplied from the head box 31 onto the mesh belt 323 of the wire portion 32 from flowing down from the side edge of the mesh belt 323.

ワイヤー部３２は、 複数の回転ローラ３２１に掛け渡して展張したメッシュベルト３２３を有し、メッシュベルト３２３が往路軌道３２３ａと復路軌道３２３ｂからなる無端軌道を形成している。また、往路軌道３２３ａの下方には、往路軌道３２３ａの網目から流下する水を受ける受水部３２５を設けている。受水部３２５は後述する排液処理部５の白水タンク５４(図１参照)に接続されている。 The wire portion 32 has a mesh belt 323 stretched over a plurality of rotating rollers 321, and the mesh belt 323 forms an endless track including an outward track 323a and a return track 323b. In addition, a water receiving portion 325 that receives water flowing down from the mesh of the forward path 323a is provided below the forward path 323a. The water receiving unit 325 is connected to a white water tank 54 (see FIG. 1) of the drainage processing unit 5 described later.

図５に示すように、 脱水部３３は、複数の回転ローラ３３１の間にそれぞれ掛け渡したフェルトからなる無端状の吸水ベルト３３２ａ，３３２ｂを上下一対有し、上側の吸水ベルト３３２ａと下側の吸水ベルト３３２ｂとが一部当接している。この上側の吸水ベルト３３２ａと下側の吸水ベルト３３２ｂとが一部当接した部分において、双方の吸水ベルト３３２ａ，３３２ｂを挟圧して圧搾する一対の圧搾ローラ３３４を複数備えている。 As shown in FIG. 5, the dewatering unit 33 has a pair of upper and lower endless water absorbing belts 332 a and 332 b made of felt that are stretched between a plurality of rotating rollers 331, and includes an upper water absorbing belt 332 a and a lower water absorbing belt 332 a. A part of the water-absorbing belt 332b is in contact. In a portion where the upper water-absorbing belt 332a and the lower water-absorbing belt 332b are partially in contact with each other, a plurality of a pair of squeezing rollers 334 are provided to squeeze the water-absorbing belts 332a and 332b.

上側の吸水ベルト３３２ａと下側の吸水ベルト３３２ｂとは設置位置を所定長さだけずらせており、上側の吸水ベルト３３２ａの方が下側の吸水ベルト３３２ｂよりも湿紙６４の走行方向上流側に配置されている。これにより、メッシュベルト３２３上を搬送されてきた湿紙６４をまず上側の吸水ベルト３３２ａに転移し、その後、圧搾ローラ３３４による圧搾の直前まで湿紙６４を下側の吸水ベルト３３２ｂに接触させないようにしている。 The upper water-absorbing belt 332a and the lower water-absorbing belt 332b are shifted in position by a predetermined length, and the upper water-absorbing belt 332a is more upstream in the running direction of the wet paper 64 than the lower water-absorbing belt 332b. Has been placed. As a result, the wet paper 64 conveyed on the mesh belt 323 is first transferred to the upper water absorbing belt 332a, and then the wet paper 64 is not brought into contact with the lower water absorbing belt 332b until immediately before pressing by the pressing roller 334. I have to.

ドライヤー部３４は、フード(図示省略)内に複数の回転ローラ３５１及び乾燥ローラ３４３を配置し、この複数の回転ローラ３５１及び乾燥ローラ３４３の間に掛け渡した搬送ベルト３４２を上下一対備えている。搬送ベルト３４２の材質は特に限定されず、例えば、布、耐熱樹脂または金属等とし、上下の搬送ベルト３４２は一部が当接した状態で走行し、上下の搬送ベルト３４２の当接箇所に複数の乾燥ローラ３４３が配置されている。乾燥ローラ３４３は、内部にヒータ３４５を備えるとともに、外周面に搬送ベルト３４２を巻回しており、また、乾燥ローラ３４３の表面の温度を測定する温度センサ（図示省略）を有している。 The dryer section 34 includes a plurality of rotating rollers 351 and a drying roller 343 disposed in a hood (not shown), and includes a pair of upper and lower conveying belts 342 spanned between the plurality of rotating rollers 351 and the drying roller 343. . The material of the conveyor belt 342 is not particularly limited. For example, cloth, heat-resistant resin, metal, or the like is used, and the upper and lower conveyor belts 342 run in a state where a part of the conveyor belts 342 is in contact. The drying roller 343 is arranged. The drying roller 343 includes a heater 345 inside, a winding belt 342 is wound around the outer peripheral surface, and a temperature sensor (not shown) that measures the temperature of the surface of the drying roller 343.

（仕上げ部）
図１に示すように、仕上げ部４は、カレンダー部４１及びカット部４２を有しており、図５に示すように、カレンダー部４１は紙の平坦度を上げるための複数のプレスローラ４１１を備え、カット部４２は紙を所定のシートサイズにカットする裁断刃（図示省略）を備えている。 (Finishing part)
As shown in FIG. 1, the finishing unit 4 has a calendar unit 41 and a cut unit 42. As shown in FIG. 5, the calendar unit 41 includes a plurality of press rollers 411 for increasing the flatness of the paper. The cutting unit 42 includes a cutting blade (not shown) for cutting paper into a predetermined sheet size.

(排液処理部)
図１に示すように排液処理部５は、脱墨排水タンク５３、白水タンク５４の各槽体を有し、汚染の程度が高く再利用が困難な脱墨排水タンク５３内の排水は、必要により所定の廃液処理を行って無毒化した後古紙処理装置１００の外部に排出するよう構成されている。汚染の程度が低く再利用が可能な白水タンク５４内の白水は、フィルターを通してインク、トナー等を除去し、必要により薬剤を添加し中和するなどの処理を施した後、もう一度パルパー１８、脱墨前希釈部２１等へ供給し再度利用可能に構成されている。 (Drainage processing part)
As shown in FIG. 1, the drainage treatment unit 5 includes tank bodies of a deinking drainage tank 53 and a white water tank 54, and the drainage in the deinking drainage tank 53 that is highly contaminated and difficult to reuse is If necessary, the waste paper is detoxified by performing a predetermined waste liquid treatment, and then discharged to the outside of the used paper processing apparatus 100. The white water in the white water tank 54, which has a low degree of contamination and can be reused, is subjected to treatments such as removing ink, toner, etc. through a filter, adding a chemical as necessary and neutralizing it, and then removing the pulper 18 again. The ink is supplied to the pre-ink dilution unit 21 and can be used again.

（第１の実施形態の作用）
本実施形態にかかる古紙処理装置１００の作用につき以下に説明する。まず、図２に示すように、粗紙６６と細断紙６７とのいずれかの古紙原料６を計測部１７で計測し、計測した古紙原料６をパルパー１８に投入する。古紙原料６のうち粗紙６６と細断紙６７とのいずれの古紙原料６を先に処理してもよく、いずれかに限定されないが、細断紙６７を優先して処理することが好ましい。このように細断紙６７を優先的に処理することで、粗紙６６に比較して離解の容易な細断紙６７を短時間で離解処理し、再生紙７の製造時間を短縮可能である。 (Operation of the first embodiment)
The operation of the used paper processing apparatus 100 according to this embodiment will be described below. First, as shown in FIG. 2, the used paper raw material 6 of either the rough paper 66 or the shredded paper 67 is measured by the measuring unit 17, and the measured used paper raw material 6 is put into the pulper 18. Of the waste paper raw material 6, any waste paper raw material 6 of the rough paper 66 and the shredded paper 67 may be processed first, but is not limited to any one, but it is preferable to treat the shredded paper 67 with priority. By preferentially processing the shredded paper 67 in this manner, the shredded paper 67 that is easy to disaggregate compared to the rough paper 66 can be disaggregated in a short time, and the manufacturing time of the recycled paper 7 can be shortened. .

また、細断紙６７を優先的に処理する場合には、シュレッダータンク１２１内の細断紙６７の量が、予め設定した一回分の離解処理を行う古紙原料６の量に満たなかったときに、その不足分を粗紙載置台１１１上に載置されている粗紙６６により補うといった方法がより好ましい。これにより、シュレッダータンク１２１内の細断紙６７の有無を検知する検知手段を設けることなく、粗紙載置台１１１上に一回分の離解処理を行う量の粗紙６６があるかどうかを検知する粗紙量検知手段１１４を設ければよいこととなる。即ち、シュレッダータンク１２１内の細断紙６７は検知が困難である一方、粗紙載置台１１１上の粗紙６６は検知が容易であり、粗紙載置台１１１上に所定量の粗紙６６があることを粗紙量検知手段１１４により検知することで、検知結果に基づき離解処理を開始するかどうかを容易に判断できるからである。 Further, when the shredded paper 67 is preferentially processed, when the amount of shredded paper 67 in the shredder tank 121 is less than the preset amount of the waste paper raw material 6 to be disaggregated once. More preferably, the shortage is compensated by the coarse paper 66 placed on the coarse paper placement table 111. Thus, it is detected whether or not there is an amount of the rough paper 66 to be subjected to the one-time disaggregation processing on the rough paper mounting table 111 without providing a detection means for detecting the presence or absence of the shredded paper 67 in the shredder tank 121. The coarse paper amount detection means 114 may be provided. In other words, the shredded paper 67 in the shredder tank 121 is difficult to detect, while the rough paper 66 on the rough paper placing table 111 is easy to detect, and a predetermined amount of rough paper 66 is placed on the rough paper placing table 111. This is because by detecting the presence by the coarse paper amount detection means 114, it is possible to easily determine whether to start the disaggregation process based on the detection result.

細断紙６７を古紙原料６として処理する際は、図２において二点鎖線で示すように、開閉部材１２４を開放し、排出装置１２５を作動してシュレッダータンク１２１内の細断紙６７を受皿１７１に徐々に投下し、受皿１７１上に載置された細断紙６７の重量を測定する。古紙原料６の供給を一度に行う場合には、計測部１７の測定値が一回のバッチ式離解処理において処理を行う古紙原料６の全重量として、予め設定した所定値に達した時点で排出装置１２５を停止し、受皿１７１を傾倒する駆動手段を駆動して受皿１７１を傾倒し、細断紙６７を攪拌槽１８１へ投入する。 When processing the shredded paper 67 as the used paper raw material 6, as shown by a two-dot chain line in FIG. 2, the opening / closing member 124 is opened and the discharge device 125 is operated to receive the shredded paper 67 in the shredder tank 121. The paper is gradually dropped onto 171 and the weight of the shredded paper 67 placed on the tray 171 is measured. When the used paper raw material 6 is supplied all at once, the measured value of the measuring unit 17 is discharged when the total weight of the used paper raw material 6 to be processed in one batch-type disaggregation process reaches a predetermined value set in advance. The apparatus 125 is stopped, the driving means for tilting the tray 171 is driven to tilt the tray 171, and the shredded paper 67 is put into the stirring tank 181.

一方、古紙原料６の供給を複数回に分割して行う場合には、計測部１７の測定値が一回のバッチ式離解処理において処理を行う古紙原料６の一部として、予め設定した所定値に達した時点で排出装置１２５を停止し、駆動手段により受皿１７１を傾倒し、細断紙６７を攪拌槽１８１へ投入する。 On the other hand, in the case where the supply of the used paper raw material 6 is divided into a plurality of times, the measured value of the measurement unit 17 is set as a predetermined value as a part of the used paper raw material 6 to be processed in one batch type disaggregation process. At this point, the discharging device 125 is stopped, the tray 171 is tilted by the driving means, and the shredded paper 67 is put into the stirring tank 181.

その後、駆動手段により受皿１７１を元に戻し、再度排出装置１２５を作動してシュレッダータンク１２１内の細断紙６７を受皿１７１へ投下し、計測部１７で細断紙６７の計測を行って、細断紙６７の重量が所定量に達すると、受皿１７１を傾倒して攪拌槽１８１へ投下する。この動作を繰り返し、計測部１７で計測する古紙原料６の重量が、一回のバッチ式離解処理において処理を行う古紙原料６の全量に達した時点で攪拌槽１８１への古紙原料６の投入を終了する。 Thereafter, the tray 171 is returned to the original position by the driving means, the discharge device 125 is operated again, the shredded paper 67 in the shredder tank 121 is dropped onto the tray 171, and the shredded paper 67 is measured by the measuring unit 17. When the weight of the shredded paper 67 reaches a predetermined amount, the tray 171 is tilted and dropped into the stirring tank 181. This operation is repeated, and when the weight of the used paper raw material 6 measured by the measuring unit 17 reaches the entire amount of the used paper raw material 6 to be processed in one batch-type disaggregation process, the used paper raw material 6 is charged into the stirring tank 181. finish.

計測部１７で計測を行う量を、一回の離解処理で用いる古紙原料６全量のうちの一部とし、計測部１７での計測毎に攪拌槽１８１に古紙原料６を少量ずつ徐々に投下する動作を複数回繰り返すことで、計測部１７において計測する重量を小さくできるので、小型の計測器を設置しても計測が可能となり、コストを抑えることができる。また、細断紙のように嵩張る古紙原料６を計測、投下する場合でも、受皿１７１の大きさを、古紙原料６全量を一度に計測する場合に比較して小さいものとすることができる。よって、計測部１７の占有面積を小さくすることができ、再生パルプ製造装置Ｋの大きさを小さくすることができる。   The amount measured by the measuring unit 17 is a part of the total amount of the used paper raw material 6 used in one disaggregation process, and the used paper raw material 6 is gradually dropped into the stirring tank 181 every time the measuring unit 17 measures. By repeating the operation a plurality of times, the weight measured by the measuring unit 17 can be reduced, so that even if a small measuring instrument is installed, the measurement can be performed and the cost can be reduced. Moreover, even when measuring and dropping the waste paper raw material 6 which is bulky like shredded paper, the size of the tray 171 can be made smaller than when measuring the total amount of the waste paper raw material 6 at a time. Therefore, the area occupied by the measuring unit 17 can be reduced, and the size of the recycled pulp manufacturing apparatus K can be reduced.

また、攪拌槽１８１への古紙原料６の供給を、一回で全量供給するのでなく、所定量ずつ複数回に分割して徐々に行うよう制御する場合は、供給される古紙原料を水によく馴染ませることができ、離解処理時間の短縮化が可能である。   In addition, when the waste paper raw material 6 is supplied to the agitation tank 181 not to be supplied all at once, but to control the waste paper raw material 6 to be gradually divided into a plurality of predetermined times, the supplied waste paper raw material is well supplied with water. It is possible to adjust the disaggregation processing time.

計測部１７で計測したシュレッダータンク１２１からの細断紙６７の量が、予め設定した一回分の離解処理を行う古紙原料６の量に満たなかったときは、粗紙載置台１１１上の粗紙６６を受皿１７１に供給し、細断紙６７に追加して粗紙６６の処理を行う。 When the amount of shredded paper 67 from the shredder tank 121 measured by the measuring unit 17 is less than the preset amount of the waste paper raw material 6 to be disaggregated once, the coarse paper on the coarse paper placing table 111 66 is supplied to the tray 171 and added to the shredded paper 67 to process the rough paper 66.

粗紙載置台１１１上の粗紙６６の供給は、昇降手段により粗紙載置台１１１を昇降し、積層された複数の粗紙６６のうち最上位の粗紙６６を給紙ローラ１１２に当接させるよう位置あわせした後、給紙ローラ１１２を回転して最上位の粗紙６６を一枚ずつ受皿１７１へと搬送する。計測部１７の計測値が予め設定した一回の計測量である所定値となったところで給紙ローラ１１２による搬送を停止し、受皿１７１を傾倒しパルパー１８へと投入する。 The rough paper 66 on the rough paper placing table 111 is supplied by moving the rough paper placing table 111 up and down by an elevating unit, and the uppermost rough paper 66 of the plurality of stacked coarse papers 66 is brought into contact with the paper feed roller 112. Then, the paper feed roller 112 is rotated to convey the uppermost coarse paper 66 to the tray 171 one by one. When the measurement value of the measurement unit 17 reaches a predetermined value that is a preset measurement amount, the conveyance by the paper feed roller 112 is stopped, and the tray 171 is tilted and put into the pulper 18.

粗紙量検知手段１１４が、粗紙載置台１１１上に載置された粗紙６６の量が一回の離解処理に必要な古紙原料６の全量である所定量に満たないことを検知した場合には、開閉部材１２４を開放せず、離解処理を開始しないこととする。このように、粗紙量検知手段１１４は、シュレッダータンク１２１内の細断紙６７を一切用いることなく、粗紙６６のみを古紙原料６として処理するとした場合に、粗紙載置台１１１上に載置された粗紙６６の量が一回のバッチ式離解処理を行うために必要な古紙原料６の全量に満たないときは離解処理を開始しないこととする。 When the amount of rough paper detecting means 114 detects that the amount of the rough paper 66 placed on the rough paper placing table 111 is less than the predetermined amount that is the total amount of the used paper raw material 6 required for one disaggregation process In this case, the opening / closing member 124 is not opened and the disaggregation process is not started. As described above, when the coarse paper amount detection unit 114 treats only the coarse paper 66 as the used paper raw material 6 without using the shredded paper 67 in the shredder tank 121, the coarse paper amount detection unit 114 is loaded on the coarse paper placement table 111. The disaggregation process is not started when the amount of the coarse paper 66 placed is less than the total amount of the used paper raw material 6 necessary for performing one batch type disaggregation process.

これにより、シュレッダータンク１２１内の細断紙６７の量に関わらず、粗紙量検知手段１１４によって粗紙載置台１１１上の粗紙６６が一回の離解処理に必要な所定量以上あるかないかを検知し、検知した結果に基づき離解処理を開始するかどうかを決定することができ、シュレッダータンク１２１内の細断紙６７の有無及びその量を検知することなく離解処理を開始することができる。 As a result, regardless of the amount of shredded paper 67 in the shredder tank 121, whether or not the coarse paper 66 on the coarse paper placing table 111 exceeds the predetermined amount required for one disaggregation process by the coarse paper amount detection means 114. And whether to start the disaggregation process based on the detected result can be determined, and the disaggregation process can be started without detecting the presence or absence of the shredded paper 67 in the shredder tank 121 and the amount thereof. .

パルパー１８では、古紙原料６の攪拌槽１８１への投入に伴い、予め設定された離解処理に必要となる量の水を給水部１８２から給水する。この給水部１８２からの給水は、古紙原料６の離解処理に必要な水の全量を一度に供給することとしてもよいが、全量のうちの一部を徐々に供給する方が好ましい。即ち、例えば所定量ずつの離解用の水を所定時間経過するごとに攪拌槽１８１へ徐々に供給するといった方法等により徐々に給水することが好ましい。このように、給水部１８２から攪拌槽１８１への給水を、所定量ずつ複数回に分割して行うことで、徐々に供給される水と古紙原料６とをよく馴染ませることができ、離解処理時間の短縮化が可能である。 The pulper 18 supplies water from the water supply unit 182 in an amount necessary for the disaggregation process set in advance as the used paper raw material 6 is charged into the stirring tank 181. The water supply from the water supply unit 182 may supply the entire amount of water necessary for the disaggregation processing of the waste paper raw material 6 at a time, but it is preferable to gradually supply a part of the total amount. That is, it is preferable to gradually supply water by, for example, a method in which a predetermined amount of disaggregation water is gradually supplied to the stirring tank 181 every time a predetermined time elapses. In this way, the water supplied from the water supply unit 182 to the stirring tank 181 is divided into a plurality of predetermined amounts, so that the gradually supplied water and the waste paper raw material 6 can be well blended, and the disaggregation process Time can be shortened.

更に、古紙原料６の投入前に攪拌槽１８１に供給しておく離解用の水の量については、攪拌槽１８１に投入される古紙原料６に粗紙６６が含まれる場合、即ち、古紙原料６が粗紙６６のみのとき及び細断紙６７と粗紙６６の両方のときには、攪拌槽１８１に投入される古紙原料６が細断紙６７のみである場合に比較して、古紙原料６の投入前に攪拌槽１８１に供給しておく離解用の水の量を少なくし、古紙原料６の投入中に供給する水の量を多くすることが好ましい。 Further, regarding the amount of water for disaggregation supplied to the agitation tank 181 before the used paper raw material 6 is charged, when the waste paper 66 is included in the used paper raw material 6 charged into the stirring tank 181, that is, the used paper raw material 6. When only the rough paper 66 is used and when both the shredded paper 67 and the rough paper 66 are used, compared with the case where the used paper raw material 6 to be fed into the stirring tank 181 is only the shredded paper 67, the used paper raw material 6 is charged. It is preferable to reduce the amount of water for disaggregation previously supplied to the agitation tank 181 and increase the amount of water supplied while the used paper raw material 6 is being charged.

例えば、粗紙６６を含む古紙原料６を攪拌槽１８１へ投入する際、攪拌槽１８１に供給される水の全量が８．５Ｌとした場合に、８．５Ｌの一部となる４．０Ｌを古紙原料６の投入前に攪拌槽１８１へ給水しておき、駆動手段１８８を作動して、攪拌羽根１８４を回動し、古紙原料６の投入を開始して離解処理を行う。その後、古紙原料６を１００ｇずつ７回といった少量ずつを複数回に分割して投入するとともに、給水部１８２から合計４．０Ｌについて１．０Ｌずつ４回といった所定量ずつ複数回に分割して給水する。古紙原料６の投入終了後、所定時間かけて離解処理を行い、離解処理が終了した後、残部０．５Ｌを給水するといった方法により、徐々に給水することとする。 For example, when the waste paper raw material 6 including the coarse paper 66 is put into the stirring tank 181, when the total amount of water supplied to the stirring tank 181 is 8.5 L, 4.0 L that is a part of 8.5 L Before the used paper raw material 6 is charged, the water is supplied to the stirring tank 181, the driving means 188 is operated, the stirring blade 184 is rotated, the charging of the used paper raw material 6 is started, and the disaggregation process is performed. Thereafter, the waste paper raw material 6 is divided into a plurality of times, such as 100 g for 7 times, and divided into a plurality of times, and a predetermined amount such as 1.0 L for 4 times in total for 4.0 L is divided into a plurality of times to supply water. To do. After the input of the used paper raw material 6, the disaggregation process is performed over a predetermined time, and after the disaggregation process is completed, water is gradually supplied by a method of supplying the remaining 0.5L.

一方、同じく攪拌槽１８１に供給される水の全量が８．５Ｌであり、古紙原料６として細断紙６７のみを用いる場合には、細断紙６７の投入前における給水量を、古紙原料６に粗紙６６が含まれる場合より多い６．０Ｌとする。そして、細断紙６７を１００ｇずつ７回といった少量ずつを複数回に分割して投入するとともに、給水部１８２から合計２．０Ｌについて、１．０Ｌずつ２回といった古紙原料６に粗紙６６を含む場合より少ない回数で給水する。細断紙６７を全て投入した後、所定時間離解処理を行い、離解処理の終了後、残部０．５Ｌを供給するといった方法により給水する。 On the other hand, when the total amount of water supplied to the stirring tank 181 is 8.5 L and only the shredded paper 67 is used as the used paper raw material 6, the amount of water supplied before the shredded paper 67 is charged is determined as the used paper raw material 6. It is set to 6.0 L which is larger than the case where the rough paper 66 is included. A small amount of shredded paper 67, such as 7 times of 100 g, is divided into a plurality of times and fed into a plurality of times. Supply water less often than if included. After all the shredded paper 67 is loaded, the disaggregation process is performed for a predetermined time. After the disaggregation process is completed, water is supplied by a method of supplying the remaining 0.5 L.

このように、古紙原料６に粗紙６６を含む場合には、細断紙６７のみの場合よりも、古紙原料６の投入前の攪拌槽１８１への給水量を少なくし、古紙原料６の投入中における給水量を多くすることで、細断紙６７に比較して、古紙原料６の投入中に水に馴染みにくい粗紙６６を、水とよく馴染ませることができる。よって、粗紙６６を含む古紙原料６を処理する場合、古紙原料６の投入前の給水量を、細断紙６７のみ処理するときと同程度に多くし、古紙原料６の投入途中の給水量を少なくする場合に比較して離解処理時間を短縮することができる。 Thus, when the waste paper raw material 6 includes the rough paper 66, the amount of water supplied to the agitation tank 181 before the waste paper raw material 6 is charged is less than that of the shredded paper 67 alone, and the waste paper raw material 6 is charged. By increasing the amount of water supply in the inside, compared with the shredded paper 67, the rough paper 66 that is not easily accustomed to water during the introduction of the waste paper raw material 6 can be well accustomed to water. Therefore, when processing the waste paper raw material 6 including the rough paper 66, the water supply amount before the waste paper raw material 6 is charged is increased to the same level as when only the shredded paper 67 is processed. The disaggregation processing time can be shortened as compared with the case of reducing the amount of.

攪拌槽１８１への給水は、放出部１０から攪拌槽１８１の内壁に向けて水を放出することにより行う。これにより、古紙原料６の攪拌槽１８１への投入時や離解処理中に攪拌槽１８１の内壁面に付着した未離解または離解途中の古紙原料６を、攪拌槽１８１の内壁面から除去できる。除去された古紙原料６は、攪拌槽１８１内で攪拌されている水中に投下され、該水に浸漬されて、離解処理を開始または再開できる。よって、未離解の古紙原料６を残存させることなく、効率よく全ての古紙原料６を離解できる。 Water supply to the stirring tank 181 is performed by discharging water from the discharge unit 10 toward the inner wall of the stirring tank 181. Thereby, the waste paper raw material 6 which has not been disaggregated or is in the middle of disaggregation attached to the inner wall surface of the stirring tank 181 when the waste paper raw material 6 is put into the stirring tank 181 or during the disaggregation treatment can be removed from the inner wall surface of the stirring tank 181. The removed waste paper raw material 6 is dropped into the water stirred in the stirring tank 181 and immersed in the water, so that the disaggregation process can be started or restarted. Therefore, all the used paper raw materials 6 can be efficiently disaggregated without leaving the undisaggregated used paper raw materials 6 remaining.

攪拌羽根１８４の回転数に関しては、粗紙６６を攪拌槽１８１へ投入した際は、細断紙６７の投入時よりも、該攪拌羽根１８４の回転数を所定の回転数まで上昇させるのに要する時間を長くするよう制御し、古紙原料６投入後の離解処理時間に対する攪拌羽根１８４の回転数の上昇割合を小さくする。更に、この粗紙６６の投入後に緩やかな上昇割合で回転数を上昇する際の運転は、攪拌羽根１８４を正回転と逆回転とを繰り返す反転動作とする。 Regarding the rotational speed of the stirring blade 184, when the coarse paper 66 is put into the stirring tank 181, it is necessary to increase the rotational speed of the stirring blade 184 to a predetermined rotational speed, compared to when the shredded paper 67 is fed. Control is made to lengthen the time, and the rate of increase in the rotational speed of the stirring blade 184 relative to the disaggregation processing time after the waste paper raw material 6 is charged is reduced. Furthermore, the operation when the rotational speed is increased at a moderate increase rate after the rough paper 66 is introduced is a reversal operation in which the stirring blade 184 repeats forward rotation and reverse rotation.

図６に、粗紙６６及び細断紙６７投入時の攪拌羽根１８４の上昇割合の一例を示す。図６において、縦軸は攪拌羽根１８４の回転数を示し、横軸は古紙原料６の投入開始後経過した時間を示す。また、一点差線は粗紙６６投入時の攪拌羽根１８４の上昇割合を示し、実線は細断紙６７投入時の上昇割合を示す。同図より、例えば、粗紙６６の攪拌槽１８１への投入後、攪拌羽根１８４の回転数を所定の回転数ｒ１まで上昇させるのに要する時間がｔ２であった場合、細断紙６７の投入時はｔ２より短いｔ１とし、粗紙６６の方が細断紙６７よりも攪拌羽根１８４の回転数を緩やかに上昇させるようにする。 FIG. 6 shows an example of the rising rate of the stirring blade 184 when the rough paper 66 and the shredded paper 67 are inserted. In FIG. 6, the vertical axis indicates the number of rotations of the stirring blade 184, and the horizontal axis indicates the time that has elapsed since the start of the used paper raw material 6. Also, the one-point difference line indicates the rate of increase of the stirring blade 184 when the rough paper 66 is input, and the solid line indicates the rate of increase when the shredded paper 67 is input. From the figure, for example, when the time required to increase the rotation speed of the stirring blade 184 to the predetermined rotation speed r1 after the rough paper 66 is loaded into the stirring tank 181 is t2, the shredded paper 67 is loaded. The time is t1, which is shorter than t2, and the rotational speed of the stirring blade 184 is gradually increased in the coarse paper 66 than in the shredded paper 67.

このように、粗紙６６の攪拌槽１８１への投入時には、攪拌羽根１８４の回転数を緩やかに上昇させることで、粗紙６６が未だよく水に馴染んでない状態において攪拌羽根１８４を高速回転した場合に生じる攪拌槽１８１内の水、千切れた古紙原料６の飛散や、攪拌羽根１８４の空気を巻き込みながらの回動、及びこの空気を巻き込みながらの回動に伴う騒音や振動等を防止することができる。一方、細断紙６７の投入時には、細断紙６７は水とすぐに馴染むので、粗紙６６のような離解開始直後の上記問題は発生し難い。また、攪拌羽根１８４の回転数を粗紙６６の投入時よりも短時間で上昇させることで、細断紙６７を攪拌羽根１８４により高速で切断することができ、容易に離解を進行させ再生パルプを短時間で製造可能である。 As described above, when the coarse paper 66 is put into the agitation tank 181, when the rotational speed of the stirring blade 184 is slowly increased, the stirring paper 184 is rotated at a high speed in a state where the coarse paper 66 is not yet familiar with water. To prevent the water in the agitation tank 181 from being scattered, the shattered waste paper raw material 6 from being scattered, the rotation of the agitation blade 184 while entraining the air, and the noise and vibration associated with the rotation while entraining the air. Can do. On the other hand, when the shredded paper 67 is introduced, the shredded paper 67 is immediately adapted to water, so that the above-described problem immediately after the start of disaggregation like the rough paper 66 hardly occurs. Further, by increasing the rotational speed of the stirring blade 184 in a shorter time than when the coarse paper 66 is charged, the shredded paper 67 can be cut at a high speed by the stirring blade 184, and the regenerated pulp can be easily disaggregated. Can be manufactured in a short time.

所定量の細断紙６７を投入した後、途中から粗紙６６を投入する場合においても、粗紙６６を投入した時点で、攪拌羽根１８４の回転数の上昇割合を、細断紙６７の投入時の上昇割合から粗紙６６の投入時の上昇割合に変更し、緩やかな割合で回転数を上昇させるようにすることが好ましい。また、途中から粗紙６６を投入した後は、攪拌羽根１８４を正回転と逆回転とを繰り返す反転動作とすることが好ましい。 Even when the coarse paper 66 is introduced halfway after the predetermined amount of shredded paper 67 is introduced, the rate of increase in the rotational speed of the stirring blade 184 at the time when the coarse paper 66 is introduced is indicated. It is preferable to change from the rate of increase at the time to the rate of increase at the time of loading the coarse paper 66 and to increase the rotational speed at a moderate rate. In addition, after feeding the coarse paper 66 in the middle, it is preferable to perform a reversing operation in which the stirring blade 184 repeats forward rotation and reverse rotation.

また、粗紙６６の投入時、正回転と逆回転とを繰り返す反転動作とすることで、粗紙６６と水とを容効率よく易に接触させられ、短時間でよく馴染ませることができ、一方向のみの回転の場合に比較して離解処理に要する時間を短縮可能である。 In addition, when the rough paper 66 is loaded, the reversing operation repeats forward rotation and reverse rotation so that the rough paper 66 and water can be easily and easily brought into contact with each other, and can be familiarized in a short time. Compared with the rotation in only one direction, the time required for the disaggregation process can be shortened.

尚、粗紙６６投入後の反転動作は、攪拌羽根１８４の回転数を予め設定した所定の最大回転数ｒ２に上昇させるまでの時間ｔ３まで行い、回転数がｒ２に達したｔ３以降は行わない。この反転動作を行う時間ｔ３の長さは、粗紙６６が離解用の水に馴染む程度の時間とし、粗紙６６の投入量及び水量によって異なるが、例えば、６０秒〜５分程度とする。 The reversing operation after inserting the coarse paper 66 is performed until time t3 until the rotation speed of the stirring blade 184 is increased to a predetermined maximum rotation speed r2, and is not performed after t3 when the rotation speed reaches r2. . The length of the time t3 for performing the reversing operation is a time that allows the rough paper 66 to become familiar with the water for disaggregation, and varies depending on the input amount and the amount of water of the rough paper 66, but is, for example, about 60 seconds to 5 minutes.

離解促進剤供給部１８３を設けている場合には離解促進剤を攪拌槽１８１に投入する。この離解促進剤供給部１８３からの攪拌槽１８１への離解促進剤の投入は、古紙原料６の投入終了後といった、古紙原料６の投入開始から所定時間経過した後に行うことが好ましい。これにより、まず離解用の水により古紙原料６を十分膨潤させた後、膨潤した古紙原料６の内部に離解促進剤を速やかに浸透させることができ、離解処理の時間を短縮可能である。 In the case where the disaggregation accelerator supply unit 183 is provided, the disaggregation accelerator is charged into the stirring tank 181. It is preferable that the disaggregation accelerator is supplied from the disaggregation accelerator supply unit 183 to the stirring tank 181 after a predetermined time has elapsed since the start of the used paper raw material 6, such as after the input of the used paper raw material 6. As a result, first, the waste paper raw material 6 is sufficiently swollen with water for disaggregation, and then the disaggregation accelerator can be rapidly infiltrated into the swollen waste paper raw material 6, thereby shortening the time of the disaggregation treatment.

そして、このパルパー１８での離解処理の間、必要により、温度センサで攪拌槽１８１内の温度を検出し、温度ヒータを通電することで攪拌槽１８１内に貯留する古紙原料６及び水等の含む液体を離解処理に適する所定温度に維持する。 During the disaggregation process in the pulper 18, if necessary, the temperature in the stirring tank 181 is detected by a temperature sensor, and the waste paper raw material 6 stored in the stirring tank 181 is included by energizing the temperature heater. The liquid is maintained at a predetermined temperature suitable for the disaggregation process.

離解処理の終了後、開閉弁２０８ａを開放し、パルパー１８において製造された再生パルプを含有する再生パルプ含有液を再生パルプ含有液取出部１８７より取り出し、ポンプ２０９ａの駆動により、図１に示す脱墨前希釈部２１へ送る。 After completion of the disaggregation process, the on-off valve 208a is opened, and the regenerated pulp-containing liquid containing the regenerated pulp produced in the pulper 18 is taken out from the regenerated pulp-containing liquid take-out section 187, and the release shown in FIG. The ink is sent to the pre-ink dilution unit 21.

脱墨前希釈部２１では、再生パルプ含有液を脱墨処理に適した繊維濃度になるよう希釈液供給部から希釈用水および脱墨剤としての界面活性剤を投入して再生パルプ含有液の希釈を行う。次に、所定の繊維濃度に調整された再生パルプ含有液を脱墨部２２に送る。尚、脱墨パルプ部２２における脱墨処理は省略することも可能であり、脱墨処理を省略する場合には、脱墨前希釈部２１において再生パルプ含有液を抄紙に適した繊維濃度に希釈した後、抄紙部３へと送る。 In the pre-deinking diluting unit 21, dilution water and a surfactant as a deinking agent are added from the diluting solution supply unit to dilute the regenerated pulp-containing liquid from the diluting solution supply unit so that the fiber concentration is suitable for the deinking process. I do. Next, the recycled pulp-containing liquid adjusted to a predetermined fiber concentration is sent to the deinking unit 22. The deinking process in the deinking pulp unit 22 can be omitted. When the deinking process is omitted, the pre-deinking dilution unit 21 dilutes the recycled pulp-containing liquid to a fiber concentration suitable for papermaking. After that, it is sent to the papermaking unit 3.

脱墨部２２では、図４に示す再生パルプ含有液流通槽２２１に流入部２２９ａから流入した再生パルプ含有液を、仕切壁２２４の左方または右方の開口から隣接する脱墨室２２５へ順次流通させる。各脱墨室２２５では脱墨剤の存在下、再生パルプ含有液中に気泡供給部２２６から微細な気泡を吹き込み、脱墨剤の存在によって消失することなく多量に発生した気泡の表面にトナー粒子等の疎水性の異物を付着させて各脱墨室２２５の上部に浮上させる。また、必要により攪拌翼を作動し、再生パルプ流通槽２２１内の再生パルプ含有液の円滑な流通を促すようにする。 In the deinking unit 22, the regenerated pulp-containing liquid that has flowed from the inflow portion 229 a into the regenerated pulp-containing liquid circulation tank 221 shown in FIG. 4 is sequentially supplied from the left or right opening of the partition wall 224 to the adjacent deinking chamber 225. Circulate. In each deinking chamber 225, fine bubbles are blown from the bubble supply unit 226 into the recycled pulp-containing liquid in the presence of the deinking agent, and toner particles are generated on the surface of the bubbles generated in large quantities without disappearing due to the presence of the deinking agent. Hydrophobic foreign matters such as the like are attached and floated on the top of each deinking chamber 225. Further, if necessary, a stirring blade is operated so as to promote smooth circulation of the recycled pulp-containing liquid in the recycled pulp circulation tank 221.

親水性の繊維は、水とともに脱墨室２２５を順次流通していく。このようにして再生パルプ含有液からトナー成分等を除去する脱墨を行う。その際、温度センサ２２７で再生パルプ含有液の温度の検出を行い、ヒータ２２８で再生パルプ含有液を所定温度に維持するよう加熱する温度制御を行う。 The hydrophilic fibers sequentially flow through the deinking chamber 225 together with water. In this way, deinking is performed to remove toner components and the like from the recycled pulp-containing liquid. At this time, the temperature sensor 227 detects the temperature of the regenerated pulp-containing liquid, and the heater 228 performs temperature control to heat the regenerated pulp-containing liquid so as to maintain a predetermined temperature.

脱墨部２２に再生パルプ含有液を導入した後、所定時間経過し、脱墨処理が進行して各脱墨室２２５の上部に気泡が浮遊した際に、モータ２２２ａを駆動し、ガイドレール２２２ｂに案内させつつブレード２２２を図４（ａ）において上下方向に往復移動し、再生パルプ含有液流通槽２２１の上部に浮遊する気泡を気泡排出槽２２３に掃き出す。気泡排出槽２２３に掃き出された気泡は、洗浄液噴出部２２３ａから噴出した洗浄液によって洗い流され、気泡排出槽２２３内に溜まった洗浄液、脱墨剤、トナー成分等を含む脱墨排水は脱墨排水取出部７５から取り出され、脱墨排水タンク５３に送られる。 After introducing the recycled pulp-containing liquid into the deinking section 22, when a predetermined time has passed and the deinking process has progressed and bubbles have floated above the deinking chambers 225, the motor 222a is driven and the guide rail 222b is driven. 4A, the blade 222 is reciprocated in the vertical direction in FIG. 4A, and the bubbles floating above the recycled pulp-containing liquid circulation tank 221 are swept out into the bubble discharge tank 223. The bubbles swept out to the bubble discharge tank 223 are washed away by the cleaning liquid ejected from the cleaning liquid ejection section 223a, and the deinking drainage containing the cleaning liquid, the deinking agent, the toner component, etc. accumulated in the bubble discharging tank 223 is the deinking drainage. It is taken out from the take-out section 75 and sent to the deinking drain tank 53.

再生パルプ含有液流通槽２２１内の全ての脱墨室２２５に再生パルプ含有液を流通させ、再生パルプ含有液を脱墨して脱墨パルプを得て、得られた脱墨パルプを含む脱墨パルプ含有液を流出部２２９ｂから流出させ、図１に示すように、抄紙部３へ送られる。 Deinking including the deinked pulp obtained by distributing the recycled pulp-containing liquid to all the deinking chambers 225 in the recycled pulp-containing liquid distribution tank 221 and deinking the recycled pulp-containing liquid to obtain the deinked pulp. The pulp-containing liquid is caused to flow out from the outflow portion 229b and is sent to the papermaking portion 3 as shown in FIG.

抄紙部３では、図５に示すように、ヘッドボックス３１から走行するメッシュベルト３２３上に、脱墨パルプを含む脱墨パルプ含有液をガイド部材３１ｂに案内させつつ均一に供給し、水切りして水分を比較的多く含んだ繊維の層である湿紙６４を形成する。メッシュベルト３２３の下方に流下した水は受水部３２５に受水され、該受水部３２５から白水タンク５４に送られる。 In the paper making unit 3, as shown in FIG. 5, the deinked pulp-containing liquid containing deinked pulp is uniformly supplied to the mesh belt 323 running from the head box 31 while guiding it to the guide member 31b, and drained. The wet paper 64 is formed as a fiber layer containing a relatively large amount of moisture. The water flowing down below the mesh belt 323 is received by the water receiving unit 325 and sent from the water receiving unit 325 to the white water tank 54.

メッシュベルト３２３上の湿紙６４が往路軌道の終端部に至ると、脱水部３３の上側の吸水ベルト３３２ａに転移される。その後下側の吸水ベルト３３２ｂとの間に挟まれ、湿紙６４に含まれる水分を吸水ベルト３３２ａ，３３２ｂ側に吸収させることで脱水し、更に、圧搾ローラ３３４で圧搾して脱水する。 When the wet paper 64 on the mesh belt 323 reaches the end of the forward path, it is transferred to the water absorption belt 332a on the upper side of the dewatering unit 33. Thereafter, the water is sandwiched between the lower water-absorbing belt 332b and dehydrated by absorbing moisture contained in the wet paper 64 to the water-absorbing belts 332a and 332b, and is further squeezed by the squeezing roller 334 and dehydrated.

脱水部３３で脱水された湿紙６４は、ドライヤー部３４に送られ、走行する上下一対の搬送ベルト３４２の間に挟持される。そして、ヒータ３４５により加熱され所定温度に維持された複数の乾燥ローラ３４３に湿紙６４を当接させつつ搬送することで湿紙６４の乾燥を行い仕上げ前の再生紙６５を得る。 The wet paper 64 dehydrated by the dehydrating unit 33 is sent to the dryer unit 34 and is sandwiched between a pair of upper and lower conveying belts 342 that travel. Then, the wet paper 64 is transported while being brought into contact with a plurality of drying rollers 343 heated by the heater 345 and maintained at a predetermined temperature, whereby the wet paper 64 is dried to obtain a recycled paper 65 before finishing.

ドライヤー部３４を出た仕上げ前の再生紙６５はカレンダー部４１に送られ、複数のプレスローラ４１１の間に通される。これにより、仕上げ前の再生紙６５の平坦度を向上させ、更に、カット部４２で所定のシートサイズに裁断して再生紙７が完成する。 The unfinished recycled paper 65 exiting the dryer section 34 is sent to the calendar section 41 and passed between the plurality of press rollers 411. As a result, the flatness of the recycled paper 65 before finishing is improved, and the cut paper 42 is further cut into a predetermined sheet size to complete the recycled paper 7.

カット部４２において裁断された結果不要となった仕上げ前の再生紙６５の破材は、図１に示すように再生パルプ製造部１に戻され、再度古紙原料６として利用される。 As shown in FIG. 1, the broken material of the recycled paper 65 before finishing, which has become unnecessary as a result of being cut by the cutting unit 42, is returned to the recycled pulp manufacturing unit 1 and used again as the used paper raw material 6.

各工程において排液処理部５へ送られた排水のうち汚染の程度が高く再利用が困難な脱墨排水タンク５３内の排水は、必要により所定の廃液処理を施した後古紙処理装置１００の外部に排出する。汚染の程度が低く再利用が可能な白水タンク５４内の白水は、必要によりフィルターを通してインク成分、トナー成分等を除去し、薬剤を添加し中和するなどの処理を施した後、パルパー１８、脱墨前希釈部２１等へ供給し再度利用する。 Of the wastewater sent to the wastewater treatment unit 5 in each step, wastewater in the deinking wastewater tank 53, which is highly contaminated and difficult to reuse, is subjected to a predetermined wastewater treatment if necessary, and then used by the used paper processing apparatus 100. Discharge to the outside. The white water in the white water tank 54 having a low degree of contamination and reusable is subjected to treatment such as removing ink components, toner components, etc. through a filter, adding chemicals, and neutralizing as necessary. It is supplied to the pre-deinking dilution unit 21 and used again.

（第２の実施形態）
本発明にかかる再生パルプ製造装置の他の実施形態を以下に示す。上記第１の実施形態では、古紙原料６を短時間で効率よく離解処理するため、攪拌羽根１８４の回転数の上昇割合等の最適条件を制御部が自動で選択できる構成としたが、本第２の実施形態では、使用者が操作パネル１９を操作することで、離解処理の条件を設定可能とし、使用者の設定に応じ離解処理を行うこととした。 (Second Embodiment)
Other embodiment of the recycled pulp manufacturing apparatus concerning this invention is shown below. In the first embodiment, in order to efficiently disaggregate the waste paper raw material 6 in a short time, the control unit can automatically select the optimum conditions such as the increase rate of the rotation speed of the stirring blade 184. In the second embodiment, the user can set the disaggregation processing condition by operating the operation panel 19, and the disaggregation processing is performed according to the user setting.

第２の実施形態にかかる再生パルプ製造装置には、使用者が離解処理条件を設定するための操作パネル１９が設けられている。図７に操作パネル１９の一例を示す。操作パネル１９には、離解処理における攪拌羽根１８４の回転数を所定の回転数まで上昇させるのに要する時間について、予め設定された複数の異なる設定時間の中から選択する上昇割合選択手段２４と、攪拌羽根１８４の回転数を予め設定された複数の異なる設定回転数の中から選択する回転数選択手段２６と、離解処理を行う際の古紙原料６の濃度を予め設定された複数の異なる設定濃度の中から選択する濃度選択手段２７とを設けている。 The regenerated pulp manufacturing apparatus according to the second embodiment is provided with an operation panel 19 for a user to set disaggregation processing conditions. FIG. 7 shows an example of the operation panel 19. The operation panel 19 includes a rising rate selection means 24 for selecting a time required for increasing the rotation speed of the stirring blade 184 in the disaggregation process from a plurality of different preset times, Rotation speed selection means 26 for selecting the rotation speed of the stirring blade 184 from a plurality of different preset rotation speeds, and a plurality of different preset density settings for the density of the waste paper raw material 6 when performing the disaggregation process Density selection means 27 for selecting from the above.

ここで、本第２の実施形態における設定回転数とは、上記第１の実施形態の図６に示す回転数を徐々に上昇した後の最大回転数ｒ２を意味する。 Here, the set rotational speed in the second embodiment means the maximum rotational speed r2 after gradually increasing the rotational speed shown in FIG. 6 of the first embodiment.

図７に示すように、上昇割合選択手段２４は、離解処理の際に攪拌羽根１８４の回転数を所定の回転数まで上昇させる際の上昇割合を「高」、「標準」、「低」の三種類の中から選択するボタン３５ａ〜３５ｃをそれぞれ設けている。また、回転数選択手段２６は、離解処理の際の攪拌羽根１８４の最大の回転数を 「高」、「標準」、「低」の三種類の中から選択するボタン２８ａ〜２８ｃをそれぞれ設けている。濃度選択手段２７は、離解処理の際の離解用の水に対する古紙原料６の濃度を「高」、「標準」、「低」の三種類の中から選択するボタン２９ａ〜２９ｃをそれぞれ設けている。 As shown in FIG. 7, the increase rate selection means 24 sets the increase rate when increasing the rotation speed of the stirring blade 184 to a predetermined rotation speed during the disaggregation process as “high”, “standard”, and “low”. Buttons 35a to 35c for selecting from three types are provided. Further, the rotation speed selection means 26 is provided with buttons 28a to 28c for selecting the maximum rotation speed of the stirring blade 184 during the disaggregation process from among three types of “high”, “standard”, and “low”. Yes. The concentration selection means 27 is provided with buttons 29a to 29c for selecting the concentration of the waste paper raw material 6 with respect to the water for disaggregation during the disaggregation process from among three types of “high”, “standard”, and “low”. .

図８に、本第２の実施形態にかかる攪拌羽根１８４の回転数の上昇割合の一例を示す。まず、上昇割合選択手段２４を操作して、図８において太実線、一点鎖線及び二点鎖線で示すように、攪拌羽根１８４の最大回転数をいずれもｒ２とした場合において、回転数の上昇割合を三種類の異なる上昇割合に設定して離解処理を行う際について説明する。 In FIG. 8, an example of the raise rate of the rotation speed of the stirring blade 184 concerning this 2nd Embodiment is shown. First, the rising rate selection means 24 is operated, and when the maximum number of revolutions of the stirring blade 184 is set to r2 as shown by the thick solid line, the one-dot chain line, and the two-dot chain line in FIG. A case where the disaggregation process is performed with three different rising ratios will be described.

上昇割合選択手段２４のうち「標準」のボタン３５ｂを選択した場合、またはいずれのボタン３５ａ〜３５ｃも選択しなかった場合に、図８において太実線で示すように、離解処理の際に攪拌羽根１８４の回転数を、最大回転数ｒ２に至る途中の所定の回転数ｒ１まで上昇させるのに要する時間を、ｔ５となるよう制御して、離解処理を行うこととする。 When the “standard” button 35b is selected from among the ascent rate selection means 24, or when none of the buttons 35a to 35c is selected, as shown by a thick solid line in FIG. The disaggregation process is performed by controlling the time required to increase the rotational speed of 184 to a predetermined rotational speed r1 on the way to the maximum rotational speed r2 to be t5.

これに対し、上昇割合選択手段２４の「高」のボタン３５ａを選択した場合には、一点鎖線で示すように、攪拌羽根１８４の回転数をｒ１まで上昇させるのに要する時間を、ｔ５より短いｔ４となるようにし回転数の上昇割合を高くするよう制御する。これにより、攪拌羽根１８４の回転数を最大回転数ｒ２まで短時間のうちに上昇し、古紙原料６を強力な勢いで攪拌し、離解処理を短時間で終わらせ、再製紙７を早く製造することができる。 On the other hand, when the “high” button 35a of the ascent rate selection means 24 is selected, the time required to increase the number of revolutions of the stirring blade 184 to r1 is shorter than t5, as shown by the one-dot chain line. At t4, control is performed to increase the rate of increase in the rotational speed. Thereby, the rotation speed of the stirring blade 184 is increased to the maximum rotation speed r2 in a short time, the used paper raw material 6 is stirred with a strong momentum, the disaggregation process is completed in a short time, and the re-made paper 7 is manufactured quickly. be able to.

また、上昇割合選択手段２４のうち「低」のボタン３５ｃを選択した場合には、二点鎖線で示すように、攪拌羽根１８４の回転数をｒ１まで上昇させるのに要する時間を、ｔ５より長いｔ６となるようにし、回転数の上昇割合を低くするよう制御する。これにより、古紙原料６の投入直後より、古紙原料６が水に馴染むまでの間に、攪拌羽根１８４の回動に伴って生じる振動、騒音を低減することができる。 In addition, when the “low” button 35c is selected from the increase rate selection means 24, as shown by a two-dot chain line, the time required to increase the rotation speed of the stirring blade 184 to r1 is longer than t5. At t6, control is performed to reduce the rate of increase in the rotational speed. Thereby, it is possible to reduce vibrations and noises caused by the rotation of the stirring blade 184 immediately after the used paper raw material 6 is introduced and before the used paper raw material 6 becomes familiar with water.

次に、設定回転数については、図８において太実線及び細実線で示すように、使用者の選択により、攪拌羽根１８４の最大の回転数をｒ３、ｒ２、ｒ４のいずれかに設定する場合について説明する。使用者が、回転数選択手段２６のうち「標準」のボタン２８ｂを選択した場合、またはいずれのボタン２８ａ〜２８ｃも選択しなかった場合、攪拌羽根１８４の回転数を徐々に上昇して設定回転数ｒ２とし、この設定回転数ｒ２で所定時間に亘って離解処理を行うこととする。 Next, with respect to the set rotational speed, as shown by the thick solid line and the thin solid line in FIG. 8, the maximum rotational speed of the stirring blade 184 is set to one of r3, r2, and r4 by the user's selection. explain. When the user selects the “standard” button 28b in the rotation speed selection means 26, or when none of the buttons 28a to 28c is selected, the rotation speed of the stirring blade 184 is gradually increased to set the rotation. The number r2 is set, and the disaggregation process is performed for a predetermined time at the set rotation speed r2.

これに対し、回転数選択手段２６の「高」のボタン２８ａを選択すると、攪拌羽根１８４の最大となる回転数を、設定回転数ｒ２より１割程度といった所定量だけ高い設定回転数であるｒ３までを上昇し、所定時間離解処理を行うこととする。これにより、攪拌羽根１８４の回転数の上昇割合を高くした場合と同様に、離解処理を短時間で終わらせ、再製紙７を早く製造できる。 On the other hand, when the “high” button 28a of the rotation speed selection means 26 is selected, the maximum rotation speed of the stirring blade 184 is r3 which is a set rotation speed that is higher by a predetermined amount such as about 10% than the set rotation speed r2. The disaggregation process is performed for a predetermined time. Thereby, similarly to the case where the rate of increase in the rotational speed of the stirring blade 184 is increased, the disaggregation process is completed in a short time, and the re-made paper 7 can be manufactured quickly.

また、回転数選択手段２６の「低」のボタン２８ｃを選択すると、設定回転数ｒ２より１割程度といった所定量だけ低い設定回転数であるｒ４までしか攪拌羽根１８４の最大回転数を上昇せずに離解処理を行うこととする。これにより、攪拌羽根１８４の回転数の上昇割合を低くした場合と同様に、攪拌羽根１８４の回動に伴う振動、騒音を低減できる。また、離解処理の際の消費電力を低く抑えることがき、加えて、設定回転数を抑えることで、離解処理の際に古紙原料６同士又は攪拌羽根１８４と古紙原料６との摩擦による古紙原料６の損傷を軽減することができ、製造される再生パルプのダメージを抑制可能であり、再生処理を複数回行っても得られる再生紙の品質を維持できる。 Further, when the “low” button 28c of the rotation speed selection means 26 is selected, the maximum rotation speed of the stirring blade 184 is increased only to r4 which is a set rotation speed that is lower by a predetermined amount, such as about 10% than the set rotation speed r2. The disaggregation process will be performed. Thereby, the vibration and noise accompanying rotation of the stirring blade 184 can be reduced similarly to the case where the increasing rate of the rotation speed of the stirring blade 184 is lowered. In addition, the power consumption during the disaggregation process can be kept low, and in addition, by reducing the set rotation speed, the used paper raw material 6 due to friction between the used paper raw materials 6 or between the stirring blades 184 and the used paper raw material 6 during the disaggregation process. Damage can be reduced, the damage of the recycled pulp produced can be suppressed, and the quality of the recycled paper obtained can be maintained even if the recycling treatment is performed a plurality of times.

古紙原料６として、既に一度、本実施形態にかかるような古紙再生処理装置により再生済みの再製紙を用いた場合には、本実施形態のような古紙再生処理装置によらず製造された場合に比較して、古紙の離解が容易であるので、攪拌羽根１８４の回転数を低く設定した場合であっても短時間で十分に離解することができる。 When the recycled paper raw material 6 that has already been recycled by the used paper recycling processing apparatus according to the present embodiment is used once, it has been manufactured regardless of the used paper recycling processing apparatus as in the present embodiment. In comparison, because the waste paper is easily disaggregated, it can be sufficiently disaggregated in a short time even when the rotation speed of the stirring blade 184 is set low.

各条件において、用いる古紙原料６が粗紙６６である場合は必要により、攪拌羽根１８４を正回転と逆回転とを繰り返す反転動作を行うことも可能であり、これにより、攪拌羽根１８４の回転に伴う振動、騒音を更に低減可能である。 Under each condition, when the used paper raw material 6 to be used is the rough paper 66, it is possible to perform a reversing operation that repeats forward and reverse rotation of the stirring blade 184 as necessary. The accompanying vibration and noise can be further reduced.

離解処理の際の古紙原料６の濃度に関し、使用者が、濃度選択手段２７のうち「標準」のボタン２９ｂを選択した場合、またはいずれのボタン２９ａ、２９ｃも選択しなかった場合、通常の古紙原料６の濃度で離解処理を行う。一方、使用者が、多量の古紙原料６を短時間で処理したい場合等には、濃度選択手段２７のうち「高」のボタン２９ａを選択する。これにより、予め設定した標準の設定濃度よりも高い設定濃度に調整し、離解処理を行う。 When the user selects the “standard” button 29b of the density selection means 27 or selects none of the buttons 29a and 29c with respect to the density of the used paper raw material 6 during the disaggregation process, normal used paper Disaggregation is performed at the concentration of the raw material 6. On the other hand, when the user wants to process a large amount of used paper raw material 6 in a short time, the user selects the “high” button 29 a in the density selection means 27. As a result, the set density is adjusted to be higher than the preset standard set density, and the disaggregation process is performed.

これにより、標準として設定した古紙原料６の水に対する設定濃度のよりも高く設定した設定濃度に調整し、離解処理を行うので、一回のバッチ式離解処理で標準の場合より多くの古紙原料６を処理でき、多量の古紙原料６を標準の場合より短時間で処理可能である。 As a result, the used paper raw material 6 set as a standard is adjusted to a set concentration that is set higher than the set concentration with respect to water, and the disaggregation process is performed. A large amount of waste paper raw material 6 can be processed in a shorter time than the standard case.

また、使用者が、古紙原料６を複数回に亘って再生処理したい場合等のように、離解処理によるダメージを抑制したい場合には、濃度選択手段２７のうち「低」のボタン２９ｃを選択することで、予め設定した標準の設定濃度よりも低い設定濃度に古紙原料６を調整し、離解処理を行う。 Further, when the user wants to recycle the waste paper raw material 6 a plurality of times and wants to suppress the damage caused by the disaggregation process, the user selects the “low” button 29 c in the density selection means 27. Thus, the used paper raw material 6 is adjusted to a set density lower than the preset standard set density, and the disaggregation process is performed.

これにより、離解処理の際に古紙原料６同士又は攪拌羽根１８４と古紙原料６との摩擦による古紙原料６の損傷を軽減することができ、離解の際の古紙のダメージを抑制することで、再生処理を複数回行っても得られる再生紙の品質を維持できる。 As a result, it is possible to reduce the damage of the waste paper raw material 6 due to friction between the waste paper raw materials 6 or between the stirring blades 184 and the waste paper raw material 6 during the disaggregation treatment, and to prevent the waste paper from being damaged during the disaggregation. It is possible to maintain the quality of the recycled paper obtained even if the treatment is performed a plurality of times.

Ｋ 再生パルプ製造装置
Ｓ 抄紙装置
６ 古紙原料
７ 再生紙
９ 古紙原料供給部
１０ 放出部
１１ 粗紙供給部
１２ 細断紙供給部
２６ 回転数選択手段
２７ 濃度選択手段
６６ 粗紙
６７ 細断紙
１８１ 攪拌槽
１８２ 給水部 K recycled pulp production apparatus S paper making apparatus 6 used paper raw material 7 recycled paper 9 used paper raw material supply unit 10 discharge unit 11 rough paper supply unit 12 shredded paper supply unit 26 rotation speed selection means 27 concentration selection means 66 rough paper 67 shredded paper 181 Stirring tank 182 Water supply section

Claims (7)

古紙原料を給水部から供給された水とともに攪拌羽根により攪拌する攪拌槽と、
攪拌槽に古紙原料を供給する古紙原料供給部と、
各部の動作を制御する制御部とを備えた再生パルプ製造装置であって、
古紙原料供給部には、切断機器によって切断された細断紙を供給する細断紙供給部と、細断紙より大きい粗紙を供給する粗紙供給部とを設けてなり、
制御部は、攪拌槽に粗紙供給部から粗紙を供給した場合には、細断紙供給部から細断紙を供給した場合に比較して、攪拌羽根の回転数を所定の回転数まで上昇させるのに要する時間を長くするよう制御することを特徴とする再生パルプ製造装置。 An agitation tank for agitating used paper raw materials together with water supplied from a water supply unit by an agitating blade;
A used paper raw material supply unit for supplying the used paper raw material to the stirring tank;
A regenerated pulp manufacturing apparatus comprising a control unit that controls the operation of each unit,
The used paper raw material supply unit includes a shredded paper supply unit that supplies shredded paper cut by a cutting device, and a rough paper supply unit that supplies rough paper larger than the shredded paper ,
When the rough paper is supplied from the rough paper supply unit to the agitation tank, the control unit reduces the number of rotations of the stirring blade to a predetermined number of rotations compared to the case where the fine paper is supplied from the shredded paper supply unit. A regenerated pulp manufacturing apparatus, characterized in that control is performed so as to lengthen the time required to raise. 制御部は、攪拌槽に粗紙供給部から粗紙を供給した場合に、攪拌羽根の回転を正回転と逆回転を繰り返すよう制御することを特徴とする請求項１に記載の再生パルプ製造装置。 2. The regenerated pulp manufacturing apparatus according to claim 1, wherein the control unit controls the rotation of the stirring blade to repeat the forward rotation and the reverse rotation when the coarse paper is supplied from the coarse paper supply unit to the stirring tank. . 制御部は、古紙原料供給部から攪拌槽への古紙原料の供給を、所定量ずつ複数回に分割して行うよう制御することを特徴とする請求項１または請求項２に記載の再生パルプ製造装置。 The regenerated pulp production according to claim 1 or 2, wherein the control unit controls the supply of the used paper raw material from the used paper raw material supply unit to the agitation tank in a predetermined amount divided into a plurality of times. apparatus. 制御部は、給水部から攪拌槽への給水を、所定量ずつ複数回に分割して行うよう制御する請求項１乃至請求項３のいずれか一項に記載の再生パルプ製造装置。 The regenerated pulp manufacturing apparatus according to any one of claims 1 to 3, wherein the control unit performs control so that water supplied from the water supply unit to the stirring tank is divided into a plurality of predetermined amounts. 給水部は攪拌槽の上部に設けられてなり、該給水部に攪拌槽の内壁面に向けて水を放出する放出部が形成されていることを特徴とする請求項１乃至請求項４のいずれか一項に記載の再生パルプ製造装置。 The water supply part is provided in the upper part of a stirring tank, The discharge part which discharges | emits water toward the inner wall surface of a stirring tank is formed in this water supply part, Any one of Claim 1 thru | or 4 characterized by the above-mentioned. The recycled pulp manufacturing apparatus according to claim 1. 古紙原料を給水部から供給された水とともに攪拌羽根により攪拌し離解処理を行うための攪拌槽と、
攪拌槽に古紙原料を供給する古紙原料供給部と、
各部の動作を制御する制御部とを備えた再生パルプ製造装置であって、
少なくとも、離解処理における攪拌羽根の回転数を所定の回転数まで上昇させるのに要する時間について、使用者が、予め設定された複数の異なる設定時間の中から選択する上昇割合選択手段と、
使用者が離解処理における攪拌羽根の回転数を予め設定された複数の異なる設定回転数の中から選択する回転数選択手段と、
使用者が離解処理における水に対する古紙原料の濃度を予め設定された複数の異なる設定濃度の中から選択する濃度選択手段とのいずれかの選択手段を備えており、
制御部は、上昇割合選択手段によって所定の設定時間が選択されると、選択された設定時間に応じて攪拌羽根の回転数を所定の回転数まで上昇させるのに要する時間を制御し、
回転数選択手段によって所定の設定回転数が選択されると、選択された設定回転数に応じて攪拌羽根を回転するよう制御し、
濃度選択手段によって所定の設定濃度が選択されると、選択された設定濃度に応じて離解処理の際の古紙原料の濃度を調整することを特徴とする再生パルプ製造装置。 An agitation tank for agitating the waste paper raw material together with water supplied from the water supply unit with an agitating blade to perform a disaggregation treatment;
A used paper raw material supply unit for supplying the used paper raw material to the stirring tank;
A regenerated pulp manufacturing apparatus comprising a control unit that controls the operation of each unit,
At least, as for the time required to increase the rotation speed of the stirring blade in the disaggregation processing to a predetermined rotation speed, the user selects from among a plurality of preset different set times,
A rotational speed selection means for the user to select the rotational speed of the stirring blade in the disaggregation process from a plurality of different preset rotational speeds;
The user is provided with any selection means of density selection means for selecting the concentration of the used paper raw material with respect to water in the disaggregation process from a plurality of different preset concentrations set in advance,
When the predetermined setting time is selected by the increase rate selection means, the control unit controls the time required to increase the rotation speed of the stirring blade to the predetermined rotation speed according to the selected setting time,
When a predetermined set rotational speed is selected by the rotational speed selecting means, the stirring blade is controlled to rotate according to the selected set rotational speed,
An apparatus for producing recycled pulp, wherein when a predetermined set concentration is selected by the concentration selecting means, the concentration of the used paper raw material in the disaggregation process is adjusted according to the selected set concentration. 請求項１乃至請求項６のいずれか一項に記載の再生パルプ製造装置と、前記再生パルプ製造装置で製造された再生パルプ含有液を抄紙する抄紙装置とを備えた古紙再生処理装置。 A used paper recycling apparatus comprising: the recycled pulp manufacturing apparatus according to any one of claims 1 to 6; and a papermaking apparatus for papermaking the recycled pulp-containing liquid manufactured by the recycled pulp manufacturing apparatus.
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