WO2017010123A1 - Pulper and blade structure for pulper rotor - Google Patents

Pulper and blade structure for pulper rotor Download PDF

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Publication number
WO2017010123A1
WO2017010123A1 PCT/JP2016/058422 JP2016058422W WO2017010123A1 WO 2017010123 A1 WO2017010123 A1 WO 2017010123A1 JP 2016058422 W JP2016058422 W JP 2016058422W WO 2017010123 A1 WO2017010123 A1 WO 2017010123A1
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Prior art keywords
rotor
blade
blade body
pulper
shaped
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PCT/JP2016/058422
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French (fr)
Japanese (ja)
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勇次郎 出口
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ローター工業株式会社
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Application filed by ローター工業株式会社 filed Critical ローター工業株式会社
Priority to JP2017528296A priority Critical patent/JP6945449B2/en
Priority to KR1020177037290A priority patent/KR102017723B1/en
Priority to CN201680040911.4A priority patent/CN107849809B/en
Publication of WO2017010123A1 publication Critical patent/WO2017010123A1/en

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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/34—Kneading or mixing; Pulpers
    • 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

Definitions

  • the present invention relates to a blade structure of a pulper and a pulper rotor, and more particularly, to an economical spare blade technology excellent in wear resistance and exchanging workability.
  • a pulper device which usually has a basic configuration including a storage tank into which used paper and water are charged, and a rotor provided rotatably at the bottom of the storage tank. Further, in order to increase the efficiency of disaggregation, the rotor is provided with blade blades extending in the radial direction, and the used paper is disaggregated by the rotation thereof.
  • FIG. 5 is a cross-sectional view of a conventional replaceable blade.
  • Fig.5 (a) has shown the type which attaches a replacement blade to the rotation direction front of a blade blade.
  • FIG. 5B shows a replaceable blade type that has a two-sheet configuration and the lower blade can also be replaced. The lower blade is bolted to the upper blade, and the upper blade is bolted to the base body so as to be bonded together.
  • the wear resistance is improved as a whole by using a harder material on the lower side in the two-sheet configuration.
  • the conventional technique has the following problems.
  • To solve this problem it is possible to use an integrated replacement blade that is made by welding a hard material (eg, stellite) to the lower corner and polishing and molding it. Considering this, there was a problem that it was not economical.
  • This invention is made
  • a rotor blade according to claim 1 is a pulper comprising: a storage tank into which paper and water are charged; a strainer provided at a bottom portion of the storage tank; and a substantially disk-shaped rotor that rotates on the strainer.
  • a blade portion that is arranged rotationally symmetrically while extending in the radial direction of the rotor, and separates the paper from the strainer by the rotation of the rotor, and a base portion that is formed with a ridge on the front side in the rotation direction;
  • the blade body is characterized in that it can be attached to and detached from the base portion by a bolt screwed from the upper surface side of the rotor through a hole penetrating the protrusion of the base portion.
  • the blade is separated into an L-shaped blade body and a plate blade body, and can be replaced at respective replacement timings. It is a material that requires more wear resistance, and in general, a material with a high unit price can be cut out into a plate shape that is easy to process and has a small volume (material used compared to FIG. 5B). Less amount). Thereby, the abrasion resistance of the whole blade part improves, and it becomes possible to extend a lifetime. Moreover, an electric tool can be applied from the rotor upper surface side, and exchanging workability is excellent.
  • the rotor blade portion according to claim 2 is the blade portion according to claim 1, wherein the L-shaped blade body and the plate blade body are each formed of a homogeneous material, and the hardness of the plate blade body is an L-shaped blade. The material is larger than the hardness of the body.
  • the invention according to claim 2 eliminates the need to weld a high-hardness material, which has been conventionally performed, so that the wear resistance of the upper and lower corners is substantially equal, and a uniform and homogeneous material. By simply processing, it is possible to make a suitable blade at the right place.
  • the rotor blade according to claim 3 is the blade according to claim 1, wherein a material having a hardness higher than that of the base portion is attached to the bottom surface of the base portion at a position continuous to the rear side in the rotational direction of the plate blade body. It is characterized by.
  • the invention according to claim 3 can further improve the wear resistance of the entire bottom surface of the rotor that is easily worn with the strainer.
  • exchanged may be sufficient as being able to arrive, and the aspect which welded may be sufficient.
  • this material is not specifically limited, the thing exceeding the hardness of a base
  • a pulper according to claim 4 is a pulper having the rotor blade portion according to claim 1, 2 or 3.
  • the invention according to claim 4 can provide a pulper that is excellent in wear resistance and excels in exchanging workability of rotor blades.
  • the economical spare blade structure which is excellent in abrasion resistance and exchange workability
  • a pulper employing the structure can be provided.
  • FIG. 1 It is a schematic block diagram of the pulper which has the rotor blade part (blade blade) of this invention. It is a partial sectional view. It is an enlarged view of the bottom part of a pulper.
  • (A) is a top view
  • (b) is a cross-sectional schematic diagram. It is a perspective view of a blade blade part. In addition, the concave streak is partially seen through.
  • It is sectional drawing of a blade blade and a strainer. It is sectional drawing of the conventional blade blade.
  • (A) is a sectional view of one replaceable blade type
  • (b) is a sectional view of two replaceable blade types
  • (c) is a plan view of a rotor equipped with the replaceable blade type of (b). Yes (the strainer is also shown).
  • FIG. 1 is a schematic configuration diagram of a pulper having a rotor blade portion of the present invention.
  • FIG. 2 is an enlarged view of the bottom portion of the pulper.
  • FIG. 3 is a perspective view of the blade blade portion.
  • FIG. 4 is a cross-sectional view of the blade blade and the strainer.
  • the pulper 1 includes a storage tank 2, a strainer 3 provided at the bottom of the storage tank 2, and a rotor 4 that rotates on the strainer 3.
  • the storage tank 2 includes a cylindrical portion 21, a truncated cone portion 22 that faces the rotor 4, and an upper lid 23.
  • the upper lid 23 has an insertion port 231 through which used paper or the like is inserted.
  • a water supply pipe is joined to the cylindrical portion 21.
  • the mixture of water and waste paper gathers in the rotor 4 due to the slope of the truncated cone portion 22, and efficient shearing is realized. In other words, rapid slurrying of the mixture is achieved.
  • the strainer 3 is a plate-like member having a predetermined thickness in which a large number of holes 31 are formed, and shears waste paper with the holes 31 and the blade blades 5 of the rotor 4 described later.
  • stainless steel having a predetermined hardness is used for the strainer 3.
  • An openable / closable discharge port (not shown) is provided directly below the strainer 3 to discharge the slurry in an appropriate state.
  • the rotor 4 is generally disc-shaped, and includes a rotor body 41 and a rotor cap 42 that is attached to the upper portion of the rotor body 41 and rotates integrally with the rotor body 41.
  • both the rotor body 41 and the rotor cap 42 are made of stainless steel having a predetermined hardness or strength.
  • the rotor body 41 is provided with eight blade blades 5 arranged in a rotationally symmetrical manner extending in the radial direction with respect to the rotation axis.
  • the blade blade 5 is configured by covering a base portion 51 with a substantially U-shaped recess 52.
  • the base portion 51 is an extended portion of the rotor body 41, and the front side in the rotational direction of the rotor 4 is formed in a protruding line.
  • the concave stripe 52 has a shape that fits into the convex stripe, and is divided into two along the longitudinal direction, and an L-shaped blade body 521 positioned on the rotor 4 upper surface side and a plate blade positioned on the rotor 4 bottom surface side (strainer 3 side). And a body 522.
  • the L-shaped blade body 521 and the plate blade body 522 are formed by tightening bolts B from the upper surface side of the rotor 4 through holes 511 passing through the upper and lower ridges lying on the side. It joins to the part 51 (it will be in the state which the groove 52 covered the protrusion).
  • the plate blade body 522 is a substantially rectangular plate material having a predetermined thickness, and uses a specific high hardness stainless steel.
  • the L-shaped blade body 521 is a columnar body having an L-shaped cross section, and uses a predetermined high hardness stainless steel.
  • the concave strip 52 has a front surface S in the rotational direction forming a front inclined surface, and waste paper or slurry is guided to the strainer 3 side, thereby increasing the shear efficiency.
  • the corners 521C and 522C gradually wear with use.
  • the strainer 3 exists immediately below, the resistance increases and the wear rate is fast (if the material is the same, the corner 522C wears out at a rate three times the wear rate of the corner 521C. To go). Therefore, in the blade blade 5, the L-shaped blade body 521 uses a material with a hardness higher than that of the base portion 51, and the plate blade body 522 uses a material with a hardness higher than that of the L-shaped blade body 521. Thereby, the lifetime of the corner 522C can be extended, and the maintainability is improved.
  • the plate blade body 522 is plate-shaped and therefore excellent in workability.
  • the volume of the plate blade body 522 is smaller than that of the L-shaped blade body 521 and the running cost is also reduced. Even when compared with the conventional two-blade configuration shown in FIG. 5B, the volume of the plate blade body 522 is 1/2 to 1/3 of the replacement blade on the lower side of the figure, which is economical.
  • the concave strip 52 can be easily fitted to the base portion 51 using an electric tool. Since it can be detached, it is extremely easy to replace. Note that the number of bolts B can also be half that of the two-blade specification shown in FIG. 5B (see FIG. 5C).
  • a reinforcing plate 53 is welded to the bottom surface of the blade blade 5.
  • the reinforcing plate 53 uses the same material as the L-shaped blade body 521. Thereby, the lifetime of the rotor 4 is further improved.
  • the rotor cap 42 is formed by a substantially conical cap base 421 that rises in a mountain shape, and a plurality of stirring protrusions 422 that are radially provided so as to form convex ridges that draw an arc on the upper surface of the cap base 421.
  • the cap base 421 and the stirring protrusion 422 are integrated.
  • the stirring blade 512 On the upper surface of the blade blade 5, ridges that form a smooth arc continuous with the stirring protrusion 422 are formed as the stirring blade 512.
  • the stirring blade 512 is away from the center of rotation and has a high speed to shear the used paper again. Like the concave strip 52, it is worn by resistance, so that the stirring blade 512 is also replaceable. That is, it is possible to attach and detach with a power tool from above with the bolt B.
  • waste paper is introduced from the input port 231 with the discharge port of the storage tank 2 closed, and then water is poured. Then, the rotor 4 is rotated. As the rotor 4 rotates, a water flow that circulates in the storage tank 2 is generated, and the waste paper is sequentially refined by the blade blade 5. Thereafter, the discharge port is opened, and the pulp-containing liquid (slurry) is taken out.
  • the pulper 1 is a pulper that employs an economical replacement blade structure that is excellent in wear resistance and workability.
  • the present invention is not limited to the above embodiment.
  • the number of blade blades 5 is not eight, but may be six or ten.
  • the rotor cap 42 is not limited to the mountain shape but may be a shape that rises like a bowl.
  • the reinforcing plate 53 may also be exchangeable.
  • This rotor structure can be used in the field of stirring / dissolving or stirring shearing.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

Provided are blades (5) which extend in the direction of the diameter of a rotor (4) in a pulper (1), said blades being characterized in that each is formed from a base part (51) wherein the front side in the direction of rotation is formed into a ridge, and an L-shaped blade body (521) and plate blade body (522) which are formed by dividing a substantially U-shaped groove (52) that engages with the base part (51) into two along the longitudinal direction, with the L-shaped blade body (521) being positioned on the rotor (4) upper surface side and the plate blade body (522) being positioned on the rotor (4) bottom surface side, and the L-shaped blade body (521) and the plate blade body (522) are attachable to, as well as detachable, from the base part (51) by bolts B that provide threaded engagement from the rotor (4) upper surface side through holes (511) passing through the ridge of the base part (51).

Description

パルパーおよびパルパーロータの刃部構造Blade structure of Pulper and Pulper rotor
　本発明は、パルパーおよびパルパーロータの刃部構造に関し、特に、耐摩耗性および交換作業性に優れる経済的な替え刃技術に関する。 The present invention relates to a blade structure of a pulper and a pulper rotor, and more particularly, to an economical spare blade technology excellent in wear resistance and exchanging workability.
　ダンボールや雑誌、新聞紙のような古紙を再生紙とするには、まず、古紙を細かく離解してスラリー状とする。このときパルパー装置が用いられ、これは、通常、古紙および水を投入する収容槽と、収容槽の底に回転可能に設けられたロータと、を備えた基本構成を有する。また、ロータには、離解の効率化を図るため、径方向に延伸した羽根刃が備わり、その回転により古紙が離解される。 In order to use recycled paper such as cardboard, magazines, and newspapers, first, the used paper is finely disaggregated into a slurry. At this time, a pulper device is used, which usually has a basic configuration including a storage tank into which used paper and water are charged, and a rotor provided rotatably at the bottom of the storage tank. Further, in order to increase the efficiency of disaggregation, the rotor is provided with blade blades extending in the radial direction, and the used paper is disaggregated by the rotation thereof.
　ここで、ロータはステンレスが用いられるが、羽根刃先端は強い剪断力ないし摩擦力により次第に摩耗していくため、替え刃が用いられる。図５は、従来の替え刃の断面図である。図５（ａ）は、羽根刃の回転方向前方に替え刃を取り付けるタイプを示している。図５（ｂ）は、二枚構成であり、下側の刃も交換可能である替え刃タイプを示している。なお、下側の刃は上側の刃にボルト留めし、上側の刃を基体にボルト留めして全体を合着させている。 Here, the rotor is made of stainless steel, but the tip of the blade blade is gradually worn by strong shearing force or frictional force, so a replacement blade is used. FIG. 5 is a cross-sectional view of a conventional replaceable blade. Fig.5 (a) has shown the type which attaches a replacement blade to the rotation direction front of a blade blade. FIG. 5B shows a replaceable blade type that has a two-sheet configuration and the lower blade can also be replaced. The lower blade is bolted to the upper blade, and the upper blade is bolted to the base body so as to be bonded together.
　ロータの下にはストレーナがあり、ストレーナとロータとの間で効率的に古紙を離解していくため、羽根刃の下側の角の部分は上側の角の部分より摩耗速度が速い。したがって、図５（ｂ）に示したように、二枚構成として下側により硬い素材を用い耐摩耗性を全体として向上させている。 There is a strainer under the rotor, and since the waste paper is efficiently separated between the strainer and the rotor, the lower corner portion of the blade blade has a faster wear rate than the upper corner portion. Therefore, as shown in FIG. 5B, the wear resistance is improved as a whole by using a harder material on the lower side in the two-sheet configuration.
　しかしながら、従来の技術では以下の問題点があった。
　図５（ａ）に示したタイプでは、下の角の摩耗のため、上の角はまだ取替え時期が到来していないのに全体を交換する必要があり、経済的でないという問題点があった。これを解消すべく、下の角の部分に高硬度の素材（たとえばステライト）を溶着して研磨しそして成形した一体ものの替え刃も用いられるが、結局のところ、加工の手間と特殊材料の費用を考慮すると経済的でないという問題点があった。 However, the conventional technique has the following problems.
In the type shown in FIG. 5 (a), there is a problem that due to the wear of the lower corner, it is necessary to replace the upper corner even though the replacement time has not yet arrived, which is not economical. . To solve this problem, it is possible to use an integrated replacement blade that is made by welding a hard material (eg, stellite) to the lower corner and polishing and molding it. Considering this, there was a problem that it was not economical.
　また、替え刃を留めるボルトをロータの回転方向前側に配置すると、ボルト自体が摩耗して取り外し出来ない場合があるという問題点があった。また、収容槽の底面に平行にボルトが螺合されているので、工具を嵌めにくく、かつ、手作業が必要となることから、交換作業性を著しく損ねてしまうという問題点があった。 Also, when the bolt for fastening the replacement blade is arranged on the front side in the rotational direction of the rotor, there is a problem that the bolt itself may be worn and cannot be removed. Further, since the bolts are screwed in parallel to the bottom surface of the storage tank, there is a problem that it is difficult to fit the tool and manual work is required, so that the replacement workability is remarkably impaired.
特開２００９－２８７１３１JP 2009-287131 A 特開２０１３－４７４０７JP2013-47407
　本発明は上記に鑑みてなされたものであって、耐摩耗性と交換作業性に優れる経済的な替え刃構造を提供することを目的とする。
　また、当該構造を採用したパルパーを提供することを目的とする。 This invention is made | formed in view of the above, Comprising: It aims at providing the economical spare blade structure excellent in abrasion resistance and exchange workability | operativity.
Moreover, it aims at providing the pulper which employ | adopted the said structure.
　請求項１に記載のロータ刃部は、紙と水とを投入する収容槽と、収容槽の底部分に設けられたストレーナと、ストレーナ上で回転する略円盤状のロータと、を備えるパルパーにおいて、ロータの径方向に延伸しつつ回転対称に配され、ロータの回転によりストレーナとの間で紙を離解する刃部であって、回転方向前側を凸条に形成した基体部と、基体部に勘合する略コ字状の凹条を長手に沿って二つ割りした、ロータ上面側に位置するＬ字刃体と、ロータ底面側に位置する板刃体と、により形成され、Ｌ字刃体と板刃体とは、基体部の凸を貫通する孔を介してロータ上面側から螺合させるボルトにより、基体部に対して合着と脱着とを可能としていることを特徴とする。 A rotor blade according to claim 1 is a pulper comprising: a storage tank into which paper and water are charged; a strainer provided at a bottom portion of the storage tank; and a substantially disk-shaped rotor that rotates on the strainer. A blade portion that is arranged rotationally symmetrically while extending in the radial direction of the rotor, and separates the paper from the strainer by the rotation of the rotor, and a base portion that is formed with a ridge on the front side in the rotation direction; An L-shaped blade body and a plate formed by an L-shaped blade body positioned on the rotor upper surface side and a plate blade body positioned on the rotor bottom surface side, which are obtained by dividing two substantially U-shaped concave stripes to be fitted along the length. The blade body is characterized in that it can be attached to and detached from the base portion by a bolt screwed from the upper surface side of the rotor through a hole penetrating the protrusion of the base portion.
　すなわち、請求項１にかかる発明は、上下の角の摩耗速度を考慮し、刃をＬ字刃体と板刃体とに分離して、それぞれの交換タイミングにて交換可能としている。より耐摩耗性が要求される素材であって、一般には単価の高い素材を、加工も楽で体積も少ない板状に切り出して採用可能にしている（図５（ｂ）と比べて使用する材料の量も少なくて済む）。これにより、刃部全体の耐摩耗性が向上し、寿命を伸ばすことが可能となる。また、ロータ上面側から電動工具をあてがうことができ、交換作業性にも優れる。 That is, in the invention according to claim 1, considering the wear rate of the upper and lower corners, the blade is separated into an L-shaped blade body and a plate blade body, and can be replaced at respective replacement timings. It is a material that requires more wear resistance, and in general, a material with a high unit price can be cut out into a plate shape that is easy to process and has a small volume (material used compared to FIG. 5B). Less amount). Thereby, the abrasion resistance of the whole blade part improves, and it becomes possible to extend a lifetime. Moreover, an electric tool can be applied from the rotor upper surface side, and exchanging workability is excellent.
　請求項２に記載のロータ刃部は、請求項１に記載の刃部において、Ｌ字刃体と板刃体とはそれぞれ均質な素材から形成されており、板刃体の硬度はＬ字刃体の硬度より大きな素材としていることを特徴とする。 The rotor blade portion according to claim 2 is the blade portion according to claim 1, wherein the L-shaped blade body and the plate blade body are each formed of a homogeneous material, and the hardness of the plate blade body is an L-shaped blade. The material is larger than the hardness of the body.
　すなわち、請求項２にかかる発明は、従来おこなわれていた高硬度素材を溶着して上下の角の耐摩耗性を実質的に同等とするようなことを不要とし、一様で均質な素材を加工するだけで、適材適所な替え刃とすることができる。 In other words, the invention according to claim 2 eliminates the need to weld a high-hardness material, which has been conventionally performed, so that the wear resistance of the upper and lower corners is substantially equal, and a uniform and homogeneous material. By simply processing, it is possible to make a suitable blade at the right place.
　請求項３に記載のロータ刃部は、請求項１に記載の刃部において、板刃体の回転方向後側に連続する位置の基体部底面に、基体部より硬度の高い素材を着けたことを特徴とする。 The rotor blade according to claim 3 is the blade according to claim 1, wherein a material having a hardness higher than that of the base portion is attached to the bottom surface of the base portion at a position continuous to the rear side in the rotational direction of the plate blade body. It is characterized by.
　すなわち、請求項３にかかる発明は、ストレーナとの間で摩耗しやすいロータ底面全体の耐摩耗性を更に向上できる。 That is, the invention according to claim 3 can further improve the wear resistance of the entire bottom surface of the rotor that is easily worn with the strainer.
　なお、着ける、とは、交換可能な態様であってもよいし、溶着した態様であってもよい。なお、この素材は特に限定されないが、基体部の硬度を超え、Ｌ字刃体と同等な硬度までのものを採用することができる。 In addition, the form which can be replaced | exchanged may be sufficient as being able to arrive, and the aspect which welded may be sufficient. In addition, although this material is not specifically limited, the thing exceeding the hardness of a base | substrate part and the hardness equivalent to an L-shaped blade can be employ | adopted.
　請求項４に記載のパルパーは、請求項１、２または３に記載のロータ刃部を有することを特徴とするパルパーである。 A pulper according to claim 4 is a pulper having the rotor blade portion according to claim 1, 2 or 3.
　すなわち、請求項４にかかる発明は、耐摩耗性に優れ、ロータの刃の交換作業性にも優れるパルパーを提供可能となる。 That is, the invention according to claim 4 can provide a pulper that is excellent in wear resistance and excels in exchanging workability of rotor blades.
　本発明によれば、耐摩耗性と交換作業性に優れる経済的な替え刃構造を提供することができる。
　また、当該構造を採用したパルパーを提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the economical spare blade structure which is excellent in abrasion resistance and exchange workability | operativity can be provided.
In addition, a pulper employing the structure can be provided.
本発明のロータ刃部（羽根刃）を有したパルパーの概略構成図である。部分断面図としてある。It is a schematic block diagram of the pulper which has the rotor blade part (blade blade) of this invention. It is a partial sectional view. パルパーの底部分の拡大図である。（ａ）は平面図、（ｂ）は、断面模式図である。It is an enlarged view of the bottom part of a pulper. (A) is a top view, (b) is a cross-sectional schematic diagram. 羽根刃部分の斜視図である。なお、凹条を部分的に透視している。It is a perspective view of a blade blade part. In addition, the concave streak is partially seen through. 羽根刃とストレーナの断面図である。It is sectional drawing of a blade blade and a strainer. 従来の羽根刃の断面図である。（ａ）は、１枚の替え刃タイプの断面図、（ｂ）は、２枚の替え刃タイプの断面図、（ｃ）は、（ｂ）の替え刃タイプを装着したロータの平面図である（ストレーナも表示してある）。It is sectional drawing of the conventional blade blade. (A) is a sectional view of one replaceable blade type, (b) is a sectional view of two replaceable blade types, and (c) is a plan view of a rotor equipped with the replaceable blade type of (b). Yes (the strainer is also shown).
　以下、本発明の実施の形態を図面を参照しながら詳細に説明する。
　図１は、本発明のロータ刃部を有したパルパーの概略構成図である。図２は、パルパーの底部分の拡大図である。図３は、羽根刃部分の斜視図である。図４は、羽根刃とストレーナの断面図である。なお、説明の便宜上、各図の縮尺は必ずしも同一としてない。
　パルパー１は、収容槽２と、収容槽２の底部分に設けたストレーナ３と、ストレーナ３上で回転するロータ４と、を備える。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic configuration diagram of a pulper having a rotor blade portion of the present invention. FIG. 2 is an enlarged view of the bottom portion of the pulper. FIG. 3 is a perspective view of the blade blade portion. FIG. 4 is a cross-sectional view of the blade blade and the strainer. For convenience of explanation, the scales of the drawings are not necessarily the same.
The pulper 1 includes a storage tank 2, a strainer 3 provided at the bottom of the storage tank 2, and a rotor 4 that rotates on the strainer 3.
　収容槽２は、円筒部２１と、ロータ４に向かう切頭円錐部２２と、上蓋２３とにより構成される。上蓋２３には、古紙等を投入する投入口２３１が空けられている。また、図示は省略するが、円筒部２１には、水の供給管が接合されている。 The storage tank 2 includes a cylindrical portion 21, a truncated cone portion 22 that faces the rotor 4, and an upper lid 23. The upper lid 23 has an insertion port 231 through which used paper or the like is inserted. Although not shown, a water supply pipe is joined to the cylindrical portion 21.
　切頭円錐部２２の斜面により、水と古紙との混合物はロータ４に集まり、効率的な剪断が実現される。換言すれば、混合物の迅速なスラリー化が実現される。 The mixture of water and waste paper gathers in the rotor 4 due to the slope of the truncated cone portion 22, and efficient shearing is realized. In other words, rapid slurrying of the mixture is achieved.
　ストレーナ３は、多数の孔３１が空けられた所定厚みの板状の部材であり、孔３１と後述のロータ４の羽根刃５とで古紙を剪断していく。ストレーナ３には、所定硬度のステンレス鋼を用いる。なお、ストレーナ３の直下には開閉自在な排出口（図示せず）が設けられており、適当な状態となったスラリーを排出する。 The strainer 3 is a plate-like member having a predetermined thickness in which a large number of holes 31 are formed, and shears waste paper with the holes 31 and the blade blades 5 of the rotor 4 described later. For the strainer 3, stainless steel having a predetermined hardness is used. An openable / closable discharge port (not shown) is provided directly below the strainer 3 to discharge the slurry in an appropriate state.
　ロータ４は概ね円盤状であって、ロータ本体４１と、ロータ本体４１の上部に取り付け、ロータ本体４１と一体となって回転するロータキャップ４２と、を有する。本実施の形態では、ロータ本体４１とロータキャップ４２の材質はともに所定の硬度ないし強度のステンレス鋼を用いている。 The rotor 4 is generally disc-shaped, and includes a rotor body 41 and a rotor cap 42 that is attached to the upper portion of the rotor body 41 and rotates integrally with the rotor body 41. In the present embodiment, both the rotor body 41 and the rotor cap 42 are made of stainless steel having a predetermined hardness or strength.
　ロータ本体４１は、回転軸に対し径方向に延伸する、回転対称に配された８枚の羽根刃５が備わる。その羽根刃５は、基体部５１に略コ字状の凹条５２が被さって構成される。 The rotor body 41 is provided with eight blade blades 5 arranged in a rotationally symmetrical manner extending in the radial direction with respect to the rotation axis. The blade blade 5 is configured by covering a base portion 51 with a substantially U-shaped recess 52.
　基体部５１は、ロータ本体４１の延伸部分であって、ロータ４の回転方向前側が凸条に形成されている。凹条５２は、この凸条に勘合する形状であり、長手に沿って二つ割りした、ロータ４上面側に位置するＬ字刃体５２１と、ロータ４底面側（ストレーナ３側）に位置する板刃体５２２と、により形成されている。 The base portion 51 is an extended portion of the rotor body 41, and the front side in the rotational direction of the rotor 4 is formed in a protruding line. The concave stripe 52 has a shape that fits into the convex stripe, and is divided into two along the longitudinal direction, and an L-shaped blade body 521 positioned on the rotor 4 upper surface side and a plate blade positioned on the rotor 4 bottom surface side (strainer 3 side). And a body 522.
　このＬ字刃体５２１と板刃体５２２とは、図４に示したように、横に寝た凸条の上下を貫通する孔５１１を介してロータ４上面側からのボルトＢの締めにより基体部５１に合着する（凹条５２が凸条に被さった状態となる）。 As shown in FIG. 4, the L-shaped blade body 521 and the plate blade body 522 are formed by tightening bolts B from the upper surface side of the rotor 4 through holes 511 passing through the upper and lower ridges lying on the side. It joins to the part 51 (it will be in the state which the groove 52 covered the protrusion).
　板刃体５２２は、所定厚みを有する略長方形の板材であって、特定の高硬度ステンレス鋼を用いる。また、Ｌ字刃体５２１は、断面がＬ字状の柱状体であって、所定の高硬度のステンレス鋼を用いる。 The plate blade body 522 is a substantially rectangular plate material having a predetermined thickness, and uses a specific high hardness stainless steel. The L-shaped blade body 521 is a columnar body having an L-shaped cross section, and uses a predetermined high hardness stainless steel.
　この凹条５２の形状から明らかなように、Ｌ字刃体５２１に属する上の角５２１Ｃと板刃体５２２に属する下の角５２２Ｃが刃を形成し、ロータ４の回転によって古紙を剪断していく。また、凹条５２は、回転方向前側の面Ｓが前のめりの斜面を形成しており、ストレーナ３側に古紙ないしスラリーが誘導されるようにしており、剪断効率を高めている。 As is apparent from the shape of the recess 52, the upper corner 521C belonging to the L-shaped blade body 521 and the lower corner 522C belonging to the plate blade body 522 form a blade, and the used paper is sheared by the rotation of the rotor 4. Go. In addition, the concave strip 52 has a front surface S in the rotational direction forming a front inclined surface, and waste paper or slurry is guided to the strainer 3 side, thereby increasing the shear efficiency.
　ここで、角５２１Ｃと角５２２Ｃは、使用により次第に摩耗していく。特に、角５２２Ｃについては、直下にストレーナ３が存在しているので、抵抗が大きくなり摩耗速度も早い（同素材であれば、角５２１Ｃの摩耗速度の３倍の早さで角５２２Ｃが摩耗していく）。そこで、羽根刃５では、Ｌ字刃体５２１は基体部５１より高い硬度の素材を用い、また、板刃体５２２はこのＬ字刃体５２１より更に高い硬度の素材を用いている。これにより、角５２２Ｃの寿命を延ばすことができ、メンテナンス性を高めている。 Here, the corners 521C and 522C gradually wear with use. In particular, for the corner 522C, since the strainer 3 exists immediately below, the resistance increases and the wear rate is fast (if the material is the same, the corner 522C wears out at a rate three times the wear rate of the corner 521C. To go). Therefore, in the blade blade 5, the L-shaped blade body 521 uses a material with a hardness higher than that of the base portion 51, and the plate blade body 522 uses a material with a hardness higher than that of the L-shaped blade body 521. Thereby, the lifetime of the corner 522C can be extended, and the maintainability is improved.
　また、硬度が高くなれば加工も困難となるが、板刃体５２２は、板状であるので加工性にも優れるといえる。
　更に、一般的に硬度が高い素材は単価も高いが、Ｌ字刃体５２１に比べて、板刃体５２２の体積は小さく、ランニングコストの低減も実現している。図５（ｂ）に示した従来の二枚刃構成と比較しても、同図下側の替え刃より、板刃体５２２の体積は１／２～１／３となり、経済的である。 Further, if the hardness is high, the processing becomes difficult, but it can be said that the plate blade body 522 is plate-shaped and therefore excellent in workability.
In addition, although a material with high hardness is generally expensive, the volume of the plate blade body 522 is smaller than that of the L-shaped blade body 521 and the running cost is also reduced. Even when compared with the conventional two-blade configuration shown in FIG. 5B, the volume of the plate blade body 522 is 1/2 to 1/3 of the replacement blade on the lower side of the figure, which is economical.
　更に、ボルトＢは鉛直方向の上から螺合させるので、回転方向前側から水平に螺合させる場合と異なり、電動工具を用いて簡単に凹条５２を基体部５１に合着でき、反対に、脱着もできるので、交換作業性に極めて優れる。なお、ボルトＢの数も、図５（ｂ）に示した二枚刃仕様の半分とすることができる（図５（ｃ）参照）。 Furthermore, since the bolt B is screwed from above in the vertical direction, unlike the case where it is screwed horizontally from the front side in the rotation direction, the concave strip 52 can be easily fitted to the base portion 51 using an electric tool. Since it can be detached, it is extremely easy to replace. Note that the number of bolts B can also be half that of the two-blade specification shown in FIG. 5B (see FIG. 5C).
　なお、板刃体５２２に連なる基体部５１の底面側（ストレーナ３側）も、抵抗により摩耗していくので、羽根刃５にはその底面に、補強板５３を溶接している。補強板５３は、Ｌ字刃体５２１と同素材を用いている。これにより、ロータ４の寿命を更に向上させている。 In addition, since the bottom surface side (strainer 3 side) of the base portion 51 connected to the plate blade body 522 is also worn by resistance, a reinforcing plate 53 is welded to the bottom surface of the blade blade 5. The reinforcing plate 53 uses the same material as the L-shaped blade body 521. Thereby, the lifetime of the rotor 4 is further improved.
　次にロータキャップ４２について説明する。
　ロータキャップ４２は、山なりに盛り上がった略円錐形のキャップ基体４２１と、キャップ基体４２１の上面に円弧を描く凸条を形成するように放射状に設けられた複数の撹拌凸４２２と、により形成される。キャップ基体４２１と撹拌凸４２２は一体である。 Next, the rotor cap 42 will be described.
The rotor cap 42 is formed by a substantially conical cap base 421 that rises in a mountain shape, and a plurality of stirring protrusions 422 that are radially provided so as to form convex ridges that draw an arc on the upper surface of the cap base 421. The The cap base 421 and the stirring protrusion 422 are integrated.
　羽根刃５の上面には、撹拌凸４２２に連続する滑らかな円弧を形成する凸条が撹拌刃５１２として形成されている。撹拌刃５１２は回転中心から離れていて速度が速くここでも古紙を剪断する。凹条５２と同様に抵抗により摩耗するため、この撹拌刃５１２も交換可能としている。すなわち、ボルトＢにより鉛直上方から電動工具にて着脱可能としている。 On the upper surface of the blade blade 5, ridges that form a smooth arc continuous with the stirring protrusion 422 are formed as the stirring blade 512. The stirring blade 512 is away from the center of rotation and has a high speed to shear the used paper again. Like the concave strip 52, it is worn by resistance, so that the stirring blade 512 is also replaceable. That is, it is possible to attach and detach with a power tool from above with the bolt B.
　ロータ４の運転に際しては、まず、収容槽２の排出口を閉じた状態で投入口２３１から古紙を投入して水をいれ、次に、ロータ４を回転させる。ロータ４の回転により収容槽２内を循環する水流が生じとともに、羽根刃５にて古紙が順次微細化される。その後、排出口を開放し、パルプ含有液（スラリー）をとりだす。 When the rotor 4 is operated, first, waste paper is introduced from the input port 231 with the discharge port of the storage tank 2 closed, and then water is poured. Then, the rotor 4 is rotated. As the rotor 4 rotates, a water flow that circulates in the storage tank 2 is generated, and the waste paper is sequentially refined by the blade blade 5. Thereafter, the discharge port is opened, and the pulp-containing liquid (slurry) is taken out.
　以上説明したように、パルパー１は、耐摩耗性と交換作業性に優れる経済的な替え刃構造を採用したパルパーである。 As described above, the pulper 1 is a pulper that employs an economical replacement blade structure that is excellent in wear resistance and workability.
　本発明は、上記の態様に限定されない。例えば羽根刃５の数は８枚でなく、６枚や１０枚とすることもできる。ロータキャップ４２も、山形状に限らずおわん状に盛り上がる形状であってもよい。
　補強板５３部分も交換可能にしてもよい。 The present invention is not limited to the above embodiment. For example, the number of blade blades 5 is not eight, but may be six or ten. The rotor cap 42 is not limited to the mountain shape but may be a shape that rises like a bowl.
The reinforcing plate 53 may also be exchangeable.
　本ロータ構造は、撹拌溶解ないし撹拌剪断をおこなう分野に用いることができる。 This rotor structure can be used in the field of stirring / dissolving or stirring shearing.
１        パルパー
２        収容槽
２１     円筒部
２２     切頭円錐部
２３     上蓋
２３１  投入口
３        ストレーナ
３１     孔
４        ロータ
４１     ロータ本体
４２     ロータキャップ
４２１  キャップ基体
４２２  撹拌凸
５        羽根刃
５１     基体部
５１１  孔
５１２  撹拌刃
５２     凹条
５２１  Ｌ字刃体
５２１Ｃ          Ｌ字刃体にある上の角
５２２  板刃体
５２２Ｃ          板刃体にある下の角
５３     補強板
Ｂ        ボルト
Ｓ        回転方向前側の面
 
 
  DESCRIPTION OF SYMBOLS 1 Pulper 2 Accommodating tank 21 Cylindrical part 22 Fractal cone part 23 Upper lid 231 Input port 3 Strainer 31 Hole 4 Rotor 41 Rotor main body 42 Rotor cap 421 Cap base 422 Stirring convex 5 Blade blade 51 Base part 511 Hole 512 Stirring blade 52 Concave 521 L-shaped blade body 521C Upper corner 522 in the L-shaped blade body Plate blade body 522C Lower corner 53 in the plate blade body Reinforcing plate B Bolt S Front surface in the rotation direction

Claims (4)

  1. 　紙と水とを投入する収容槽と、収容槽の底部分に設けられたストレーナと、ストレーナ上で回転する略円盤状のロータと、を備えるパルパーにおいて、ロータの径方向に延伸しつつ回転対称に配され、ロータの回転によりストレーナとの間で紙を離解する刃部であって、
    　回転方向前側を凸条に形成した基体部と、
    　基体部に勘合する略コ字状の凹条を長手に沿って二つ割りした、ロータ上面側に位置するＬ字刃体と、ロータ底面側に位置する板刃体と、
    　により形成され、
    　Ｌ字刃体と板刃体とは、基体部の凸を貫通する孔を介してロータ上面側から螺合させるボルトにより、基体部に対して合着と脱着とを可能としていることを特徴とするロータ刃部。     In a pulper comprising a storage tank for feeding paper and water, a strainer provided at the bottom of the storage tank, and a substantially disk-shaped rotor that rotates on the strainer, rotational symmetry while extending in the radial direction of the rotor A blade portion that separates the paper from the strainer by rotation of the rotor,
    A base portion formed in a convex line on the front side in the rotation direction;
    An L-shaped blade body positioned on the rotor upper surface side, a plate blade body positioned on the rotor bottom surface side, which is obtained by dividing the substantially U-shaped concave strip fitted into the base portion into two along the length;
    Formed by
    The L-shaped blade body and the plate blade body are characterized in that they can be attached to and detached from the base portion by a bolt screwed from the rotor upper surface side through a hole penetrating the protrusion of the base portion. Rotor blade part to do.
  2. 　Ｌ字刃体と板刃体とはそれぞれ均質な素材から形成されており、板刃体の硬度はＬ字刃体の硬度より大きな素材としていることを特徴とする請求項１に記載のロータ刃部。 The rotor blade according to claim 1, wherein the L-shaped blade body and the plate blade body are each formed of a homogeneous material, and the hardness of the plate blade body is larger than that of the L-shaped blade body. Department.
  3. 　板刃体の回転方向後側に連続する位置の基体部底面に、基体部より硬度の高い素材を着けたことを特徴とする請求項１に記載のロータ刃部。 The rotor blade according to claim 1, wherein a material having a hardness higher than that of the base portion is attached to the bottom surface of the base portion at a position continuous to the rear side in the rotation direction of the plate blade body.
  4. 　請求項１、２または３に記載のロータ刃部を有することを特徴とするパルパー。 A pulper having the rotor blade portion according to claim 1, 2 or 3.
PCT/JP2016/058422 2015-07-14 2016-03-17 Pulper and blade structure for pulper rotor WO2017010123A1 (en)

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Publication number Priority date Publication date Assignee Title
CN107916592A (en) * 2017-12-14 2018-04-17 济南大学 A kind of spoiler combination and section Changeful type pulper

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KR102017723B1 (en) 2019-09-03
CN107849809A (en) 2018-03-27
TW201702459A (en) 2017-01-16
CN107849809B (en) 2019-11-26
KR20180012319A (en) 2018-02-05
TWI609113B (en) 2017-12-21
JPWO2017010123A1 (en) 2018-07-12

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