WO2017010123A1 - Pulper and blade structure for pulper rotor - Google Patents
Pulper and blade structure for pulper rotor Download PDFInfo
- 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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- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- blade
- blade body
- pulper
- shaped
- Prior art date
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Classifications
-
- 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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Abstract
Description
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、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.
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.
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
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
In addition, although a material with high hardness is generally expensive, the volume of the
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
The
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
The reinforcing
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
Claims (4)
- 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. - 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.
- 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.
- 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.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017528296A JP6945449B2 (en) | 2015-07-14 | 2016-03-17 | Pulper and Pulper rotor blade structure |
KR1020177037290A KR102017723B1 (en) | 2015-07-14 | 2016-03-17 | Blade structure of pulper and pulper rotor |
CN201680040911.4A CN107849809B (en) | 2015-07-14 | 2016-03-17 | Pulper and rotor blade |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2015-140196 | 2015-07-14 | ||
JP2015140196 | 2015-07-14 |
Publications (1)
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WO2017010123A1 true WO2017010123A1 (en) | 2017-01-19 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2016/058422 WO2017010123A1 (en) | 2015-07-14 | 2016-03-17 | Pulper and blade structure for pulper rotor |
Country Status (5)
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JP (1) | JP6945449B2 (en) |
KR (1) | KR102017723B1 (en) |
CN (1) | CN107849809B (en) |
TW (1) | TWI609113B (en) |
WO (1) | WO2017010123A1 (en) |
Cited By (1)
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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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2016
- 2016-03-17 KR KR1020177037290A patent/KR102017723B1/en active IP Right Grant
- 2016-03-17 JP JP2017528296A patent/JP6945449B2/en active Active
- 2016-03-17 WO PCT/JP2016/058422 patent/WO2017010123A1/en active Application Filing
- 2016-03-17 CN CN201680040911.4A patent/CN107849809B/en active Active
- 2016-07-11 TW TW105121665A patent/TWI609113B/en active
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JP2009287131A (en) * | 2008-05-27 | 2009-12-10 | Rootaa Kogyo Kk | Rotor for pulper production apparatus and pulper apparatus having such rotor |
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CN107916592A (en) * | 2017-12-14 | 2018-04-17 | 济南大学 | A kind of spoiler combination and section Changeful type pulper |
Also Published As
Publication number | Publication date |
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JP6945449B2 (en) | 2021-10-06 |
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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