JP2003211292A - Clogging prevention device for screw press - Google Patents
Clogging prevention device for screw pressInfo
- Publication number
- JP2003211292A JP2003211292A JP2002010393A JP2002010393A JP2003211292A JP 2003211292 A JP2003211292 A JP 2003211292A JP 2002010393 A JP2002010393 A JP 2002010393A JP 2002010393 A JP2002010393 A JP 2002010393A JP 2003211292 A JP2003211292 A JP 2003211292A
- Authority
- JP
- Japan
- Prior art keywords
- scraper
- screw
- screw blade
- outer cylinder
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/121—Screw constructions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、産業排水汚泥、
下水汚泥などの固液分離に用いるスクリュープレスのス
クレーパに関し、詳しくは、外筒スクリーンの目詰まり
を防止させるためにスクリュー羽根に止着したスクレー
パの改良に関する。TECHNICAL FIELD The present invention relates to industrial wastewater sludge,
The present invention relates to a screw press scraper used for solid-liquid separation of sewage sludge and the like, and more particularly, to improvement of a scraper fixed to a screw blade to prevent clogging of an outer cylinder screen.
【０００２】[0002]
【従来の技術】従来、スクリュー羽根に止着したスクレ
ーパを用いて外筒スクリーンの目詰りを防止するスクリ
ュープレスは公知である。そして、一連の帯状に構成し
たスクレーパをスクリュー羽根にボルトで固定して、外
筒スクリーンの内面に弾圧的に摺接させる装置も、例え
ば、特開平８−５７６９２号公報に記載してあるよう
に、本願発明の出願人が提案している。2. Description of the Related Art Conventionally, a screw press which uses a scraper fixed to a screw blade to prevent clogging of an outer cylinder screen is known. A device in which a series of strip-shaped scrapers are fixed to the screw blades with bolts and elastically slidably contact the inner surface of the outer cylinder screen is also disclosed, for example, in Japanese Patent Laid-Open No. 8-57692. Is proposed by the applicant of the present invention.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の可撓性を有
するスクレーパは、弾圧的に外筒スクリーンに摺接され
て、スクリーンの目詰まりが解消されるものであるが、
摩耗性のある材質のため、外筒スクリーンに摺接出来な
くなった時には交換が必要となり、その交換に時間と労
作を要する。また、スクリーン面に摺接させるスクレー
パがケーキに押し戻されて離反する恐れもあった。この
発明は、上記従来の利点を生かしながら、スクリュー羽
根に止着したスクレーパを外周方向に摺動させて、交換
せずに調整が可能なスクレーパを提供する。The conventional flexible scraper is elastically slidably contacted with the outer cylinder screen to eliminate clogging of the screen.
Due to the wear-resistant material, it is necessary to replace it when it cannot be slidably contacted with the outer cylinder screen, which requires time and effort. In addition, the scraper brought into sliding contact with the screen surface may be pushed back by the cake and separated. The present invention provides a scraper that can be adjusted without replacing it by sliding the scraper fixed to the screw blade in the outer peripheral direction while taking advantage of the above conventional advantages.
【０００４】[0004]
【課題を解決するための手段】この発明の要旨は、スク
リーンを張設した外筒の内部にスクリュー羽根を巻き掛
けたスクリュー軸を配設し、外筒に供給した汚泥を、ス
クリュー羽根で搬送しながら外筒のスクリーンからろ液
を分離して、外筒の排出口からケーキを取り出すスクリ
ュープレスにおいて、上記スクリュー羽根に当接させる
垂直面と外方に拡大させた傾斜面を有する一連のスクレ
ーパをスクリュー羽根の外周先端部に配設し、外方に縮
小させた押え板の傾斜面をスクレーパに当接して、スク
リュー羽根と押え板でスクレーパの適所を挟持したもの
である。スクレーパの具体的な取り付け手段が、スクレ
ーパに外周方向の長孔と、押え板にネジ穴を設け、スク
リュー羽根の通孔に挿通したボルトを押え板に螺着して
スクレーパを挟持させ、スクレーパの直角方向への移動
を可能としたものである。そして、スクリーン面との接
触抵抗を小さくするために、スクリュー羽根に止着した
スクレーパの外周面に一連の切欠き溝を設けたものであ
る。また、滑り摩擦抵抗を小さくするために、スクレー
パの両側面に潤滑部材を貼着してもよいものである。Means for Solving the Problems The gist of the present invention is to arrange a screw shaft around which a screw blade is wound inside an outer cylinder on which a screen is stretched, and convey sludge supplied to the outer cylinder with the screw blade. While separating the filtrate from the screen of the outer cylinder and taking out the cake from the outlet of the outer cylinder, in a screw press, a series of scrapers having a vertical surface to be brought into contact with the screw blades and an inclined surface enlarged outward. Is disposed at the tip of the outer periphery of the screw blade, the inclined surface of the pressing plate contracted outward is brought into contact with the scraper, and the screw blade and the pressing plate hold the scraper at an appropriate position. The concrete attachment means of the scraper is that the scraper is provided with an elongated hole in the outer peripheral direction and a screw hole in the holding plate, and the bolt inserted into the through hole of the screw blade is screwed to the holding plate to hold the scraper, It is possible to move in the right angle direction. In order to reduce the contact resistance with the screen surface, a series of cutout grooves is provided on the outer peripheral surface of the scraper fixed to the screw blade. Moreover, in order to reduce the sliding friction resistance, a lubricating member may be attached to both side surfaces of the scraper.
【０００５】[0005]
【発明の実施の形態】この発明は上記のように構成して
あり、スクリュープレスに汚泥を圧入して、外筒のスク
リーンに固液分離された固形物がスクリーン面にケーキ
層を形成する。スクリュー羽根に止着したスクレーパが
始端から終端に到るスクリーンのろ過面に摺接しながら
回転し、目詰まりせんとするケーキ層を掻取りながらケ
ーキを搬送してスクリーン面を再生する。スクレーパが
摩耗してスクリーンのろ過面に摺接できなくなった時に
は、取り付けボルトを増締めすることにより、押え板を
引寄せスクレーパをスクリュー軸の軸心に対し直角方向
に移動させて、外筒のスクリーンに摺接させてスクレー
パの調整を行なう。スクレーパを交換する必要がなく、
僅かな労作で調整できる。また、スクレーパの外周面に
設けた一連の切欠き溝が掻取り回数を増加させ、スクレ
ーパの外筒スクリーンへの接触面を小さくして弾力的に
押付けが可能となる。スクレーパの両側面に潤滑部材を
貼着すれば、潤滑性が増加して直角方向への移動が容易
となる。BEST MODE FOR CARRYING OUT THE INVENTION The present invention is configured as described above, in which sludge is press-fitted into a screw press, and solid matter separated by solid-liquid separation on a screen of an outer cylinder forms a cake layer on the screen surface. The scraper fixed to the screw blade rotates while slidingly contacting the filtration surface of the screen from the start end to the end, conveying the cake while scraping the cake layer that causes clogging and regenerating the screen surface. If the scraper becomes worn and cannot come into sliding contact with the filtration surface of the screen, tighten the mounting bolts to draw the holding plate and move the scraper in the direction perpendicular to the axis of the screw shaft, Adjust the scraper by sliding it against the screen. No need to replace the scraper,
It can be adjusted with a little effort. Further, a series of notch grooves provided on the outer peripheral surface of the scraper increases the number of scrapings, and the contact surface of the scraper with the outer cylinder screen is reduced to enable elastic pressing. If lubrication members are attached to both side surfaces of the scraper, lubricity is increased and movement in the right angle direction is facilitated.
【０００６】[0006]
【実施例】この発明の実施例を図面に基づき詳述する
と、先ず、図１はスクリュープレスの一部縦断側面図で
あって、スクリュープレス１が前後のフレーム２、３に
支架されており、スクリーン４を周部に張設した外筒５
の内部に、スクリュー羽根６を巻き掛けたスクリュー軸
７が配設してある。外筒５に内設したスクリュー軸７の
始端側に供給路８が設けてあり、原液タンク９の汚泥を
圧入ポンプ１０で供給路８に圧入する。この圧入した汚
泥はスクリュー軸７に設けた供給路８の吐出口８ａから
スクリーン４を張設した外筒５の始端部に圧入され、ス
クリュー軸７に巻き掛けたスクリュー羽根６で搬送しな
がら外筒５のスクリーン４からろ液を分離して、後端部
の排出口１１からケーキを取出すようにしてある。外筒
５のスクリーン４に固液分離された固形物がスクリーン
面にケーキ層を形成する。なお、符号１２は外筒５の排
出口１１に設けた背圧調整用のプレッサー、符号１３は
スクリュー軸７の駆動機である。Embodiments of the present invention will be described in detail with reference to the drawings. First, FIG. 1 is a partially longitudinal side view of a screw press, in which the screw press 1 is supported by front and rear frames 2, 3. Outer cylinder 5 with screen 4 stretched around the circumference
A screw shaft 7 around which a screw blade 6 is wound is disposed inside the. A supply path 8 is provided on the starting end side of the screw shaft 7 provided inside the outer cylinder 5, and sludge in the stock solution tank 9 is press-fitted into the supply path 8 by a press-fitting pump 10. The press-fitted sludge is press-fitted from the discharge port 8a of the supply passage 8 provided on the screw shaft 7 to the starting end of the outer cylinder 5 on which the screen 4 is stretched, and is conveyed by the screw blades 6 wound around the screw shaft 7 to the outside. The filtrate is separated from the screen 4 of the cylinder 5 and the cake is taken out from the discharge port 11 at the rear end. The solid matter that is solid-liquid separated on the screen 4 of the outer cylinder 5 forms a cake layer on the screen surface. Reference numeral 12 is a presser for adjusting the back pressure provided at the discharge port 11 of the outer cylinder 5, and reference numeral 13 is a driver for the screw shaft 7.
【０００７】図１に示すように、スクリュー軸７に巻き
掛けたスクリュー羽根６に、その始端部から終端部にか
けて一連のスクレーパ１４がスクリュー羽根６の外周先
端部に配設してある。図２に示すように、スクレーパ１
４は押え板１５とスクリュー羽根６の先端部に挟持さ
れ、スクレーパ１４をスクリーン４に弾力的に接触させ
て取り付けボルト１６でスクリュー羽根６に止着してあ
る。図３はスクレーパの要部縦断側面図であって、スク
レーパ１４の縦断面が、スクリュー羽根６に当接させる
垂直面１４ａと外方に拡大させた傾斜面１４ｂを有して
おり、スクレーパ１４の傾斜面１４ｂに外方に縮小させ
た押え板１５の傾斜面１５ａが当接してある。As shown in FIG. 1, the screw blade 6 wound around the screw shaft 7 is provided with a series of scrapers 14 from the beginning to the end of the screw blade 7 at the outer peripheral tip of the screw blade 6. As shown in FIG. 2, the scraper 1
4 is sandwiched between the pressing plate 15 and the tip of the screw blade 6, and the scraper 14 is elastically brought into contact with the screen 4 and fixed to the screw blade 6 with the mounting bolt 16. FIG. 3 is a vertical cross-sectional side view of a main part of the scraper. A vertical cross section of the scraper 14 has a vertical surface 14 a that abuts against the screw blades 6 and an inclined surface 14 b that expands outward. The inclined surface 15a of the pressing plate 15 contracted outward is in contact with the inclined surface 14b.
【０００８】図３に示すように、スクレーパ１４に外周
方向の長孔１４ｃと、押え板１５にネジ穴１５ｂが設け
てあり、スクリュー羽根６の通孔６ａに挿通した取り付
けボルト１６を押え板１５に螺着して、スクレーパ１４
がスクリュー羽根６の適所に止着してある。なお、符号
１７はスクリュー羽根６と取り付けボルト１６の間に設
けたスプリングワッシャーである。スクレーパ１４の外
方に拡大させた傾斜面１４ｂと外方に縮小させた押え板
１５の傾斜面１５ａが締付けてあるので、スクレーパ１
４は外筒５のスクリーン４面の方向に押付けられて後退
することがなくスクリーン４面に弾力的に摺接させるこ
とができる。スクレーパ１４が摩耗してスクリーン４の
ろ過面に摺接できなくなった時には、押え板に螺着した
取り付けボルト１６を増締めすれば、押え板１５を引寄
せスクレーパ１４は外周方向に滑動して、外筒５の内周
面に再び摺接する。スクレーパ１４を交換する必要がな
く、僅かな労作でスクレーパ１４の調整が可能となる。As shown in FIG. 3, the scraper 14 is provided with an elongated hole 14c in the outer peripheral direction, and the holding plate 15 is provided with a screw hole 15b, and the mounting bolt 16 inserted into the through hole 6a of the screw blade 6 is held by the holding plate 15. Screwed onto the scraper 14
Is fixed in place on the screw blade 6. Reference numeral 17 is a spring washer provided between the screw blade 6 and the mounting bolt 16. Since the inclined surface 14b enlarged outward of the scraper 14 and the inclined surface 15a of the pressing plate 15 reduced outward are tightened, the scraper 1
4 can be elastically slidably contacted to the screen 4 surface without being pushed back in the direction of the screen 4 surface of the outer cylinder 5 and retracting. When the scraper 14 is worn and cannot be slidably contacted with the filtration surface of the screen 4, the mounting bolt 16 screwed to the holding plate is tightened to pull the holding plate 15 and the scraper 14 slides in the outer peripheral direction. It comes into sliding contact with the inner peripheral surface of the outer cylinder 5 again. It is not necessary to replace the scraper 14, and the scraper 14 can be adjusted with a little effort.
【０００９】スクリュー羽根６に止着したスクレーパ１
４の外周面に、その始端部から終端部にかけて一連の切
欠き溝１４ｄが設けてあり、この切欠き溝１４ｄにより
スクレーパ１４の先端部が分割されて掻取り回数を増加
させ、スクリーン４の目詰まり防止を助長する。なお、
切欠き溝１４ｄの溝数は、図面では二条としてあるが、
スクリュープレス１の大きさにより適宜変更できるもの
である。スクレーパ１４の外筒５のスクリーン４への接
触面を小さくして弾力的に押付けが可能となる。また、
フッ素樹脂や超高分子量ポリエチレンなどの潤滑部材１
８をスクレーパ１４の両側面に貼り付ければ、滑り摩擦
が小さくなり、取り付けボルト１６の増締めによりスク
レーパ１４を移動しやすくなる。The scraper 1 fixed to the screw blades 6
A series of cutout grooves 14d are provided on the outer peripheral surface of the No. 4 from the start end portion to the end portion, and the cutout groove 14d divides the tip end portion of the scraper 14 to increase the number of scrapings, thereby increasing the number of scratches on the screen 4. Help prevent clogging. In addition,
Although the number of grooves of the notch groove 14d is two in the drawing,
It can be appropriately changed depending on the size of the screw press 1. The contact surface of the outer cylinder 5 of the scraper 14 with the screen 4 can be reduced to elastically press the scraper. Also,
Lubricating material such as fluororesin and ultra high molecular weight polyethylene 1
When 8 is attached to both side surfaces of the scraper 14, sliding friction is reduced, and the tightening of the mounting bolt 16 makes it easier to move the scraper 14.
【００１０】[0010]
【発明の効果】この発明は上記のように構成してあり、
取り付けボルトを増締めすることにより、スクレーパが
外周方向に移動して、僅かな労作でスクレーパの調整が
可能となる。即ち、従来のスクレーパは摩耗性により外
筒スクリーンに摺接出来なくなった時には交換が必要と
なるものであるが、この発明にあっては、スクリュー羽
根に当接させる垂直面と外方に拡大させた傾斜面を有す
る一連のスクレーパをスクリュー羽根の外周先端部に配
設し、外方に縮小させた押え板の傾斜面をスクレーパに
当接して、スクリュー羽根と押え板でスクレーパの適所
を挟持したので、スクレーパは外筒のスクリーンに押付
けられて後退することがない。そして、押え板に螺着し
た取り付けボルトを増締めすれば、押え板を引寄せスク
レーパは傾斜面に沿って外周方向に滑動して、外筒の内
周面に摺接させることができる。The present invention is configured as described above,
By re-tightening the mounting bolt, the scraper moves in the outer peripheral direction, and the scraper can be adjusted with a little effort. That is, the conventional scraper needs to be replaced when it cannot be slidably brought into contact with the outer cylinder screen due to abrasion, but in the present invention, it is enlarged to the vertical surface to be brought into contact with the screw blade and outward. A series of scrapers with inclined surfaces were arranged at the tip of the outer periphery of the screw blade, and the inclined surface of the pressing plate that was contracted outward was brought into contact with the scraper, and the screw blade and pressing plate held the scraper in place. Therefore, the scraper is not pressed against the screen of the outer cylinder and does not retract. Then, by tightening the mounting bolts screwed to the holding plate, the holding plate can be pulled and the scraper can slide in the outer peripheral direction along the inclined surface to be brought into sliding contact with the inner peripheral surface of the outer cylinder.
【００１１】スクリュー羽根に止着したスクレーパの外
周面に一連の切欠き溝を設けたもので、スクレーパの先
端部が分割されて掻取り回数を増加させ、スクリーンへ
の接触面を小さくして弾力的にスクレーパの押付けが可
能となる。そして、スクレーパの両側面に潤滑部材を貼
着したもので、滑り摩擦が小さくなり、取り付けボルト
の増締めによりスクレーパが移動しやすくなる。A series of cutout grooves are provided on the outer peripheral surface of the scraper fixed to the screw blades, and the tip of the scraper is divided to increase the number of scrapings and reduce the contact surface to the screen to reduce elasticity. It is possible to press the scraper. Further, since the lubricating members are attached to both side surfaces of the scraper, sliding friction is reduced, and the scraper is easily moved by tightening the mounting bolt.
【図１】この発明に使用するスクリュープレスの縦断側
面図である。FIG. 1 is a vertical sectional side view of a screw press used in the present invention.
【図２】この発明に係るスクリュープレスにおける目詰
まり防止装置の要部縦断側面図である。FIG. 2 is a vertical sectional side view of a main part of a clogging prevention device in a screw press according to the present invention.
【図３】同じく、スクレーパの要部縦断側面図であるFIG. 3 is likewise a vertical side view of the essential parts of the scraper.
４ スクリーン ５ 外筒 ６ スクリュー羽根 ６ａ 通孔 ７ スクリュー軸 １１ 排出口 １４ スクレーパ １４ａ 垂直面 １４ｂ 傾斜面 １４ｃ 長孔 １４ｄ 切欠き溝 １５ 押え板 １５ａ 傾斜面 １５ｂ ネジ穴 １６ 取り付けボルト １８ 潤滑部材 4 screen 5 outer cylinder 6 screw blades 6a through hole 7 screw shaft 11 outlet 14 scrapers 14a vertical surface 14b slope 14c long hole 14d Notch groove 15 Presser plate 15a inclined surface 15b screw hole 16 mounting bolts 18 Lubricating member
Claims (4)
の内部に、スクリュー羽根（６）を巻き掛けたスクリュ
ー軸（７）を配設し、外筒（５）に供給した汚泥を、ス
クリュー羽根（６）で搬送しながら外筒（５）のスクリ
ーン（４）からろ液を分離して、外筒（５）の排出口
（１１）からケーキを取出すスクリュープレスにおい
て、上記スクリュー羽根（６）に当接させる垂直面（１
４ａ）と外方に拡大させた傾斜面（１４ｂ）を有する一
連のスクレーパ（１４）をスクリュー羽根（６）の外周
先端部に配設し、外方に縮小させた押え板（１５）の傾
斜面（１５ａ）をスクレーパ（１４）に当接して、スク
リュー羽根（６）と押え板（１５）でスクレーパ（１
４）の適所を挟持したことを特徴とするスクリュープレ
スにおける目詰まり防止装置。1. An outer cylinder (5) having a screen (4) stretched thereon.
A screw shaft (7) around which a screw blade (6) is wound is disposed inside the sludge, and the sludge supplied to the outer cylinder (5) is conveyed by the screw blade (6) while the screen of the outer cylinder (5) is being conveyed. In a screw press that separates the filtrate from (4) and removes the cake from the outlet (11) of the outer cylinder (5), a vertical surface (1
4a) and a series of scrapers (14) having an inclined surface (14b) enlarged outwardly are disposed at the outer peripheral tip end of the screw blade (6), and the inclination of the holding plate (15) reduced outwardly. The surface (15a) is brought into contact with the scraper (14), and the scraper (1) is attached by the screw blade (6) and the holding plate (15).
A device for preventing clogging in a screw press, which is characterized in that the proper position of 4) is clamped.
孔（１４ｃ）と、押え板（１５）にネジ穴（１５ｂ）を
設け、スクリュー羽根（６）の通孔（６ａ）に挿通した
取り付けボルト（１６）を押え板（１５）に螺着してス
クレーパ（１４）を挟持させ、スクレーパ（１４）の外
周方向への移動を可能としたことを特徴とする請求項１
に記載のスクリュープレスにおける目詰まり防止装置。2. The scraper (14) is provided with an elongated hole (14c) in the outer peripheral direction and a screw hole (15b) in the holding plate (15), and the screw blade (6) is inserted through the through hole (6a). The bolt (16) is screwed to the holding plate (15) to clamp the scraper (14), and the scraper (14) can be moved in the outer peripheral direction.
A device for preventing clogging in the screw press described in.
クレーパ（１４）の外周面に一連の切欠き溝（１４ｄ）
を設けたことを特徴とする請求項１または２に記載のス
クリュープレスにおける目詰まり防止装置。3. A series of cutout grooves (14d) is formed on the outer peripheral surface of the scraper (14) fixed to the screw blade (6).
The clogging prevention device for a screw press according to claim 1 or 2, further comprising:
部材（１８）を貼着したことを特徴とする請求項１乃至
３の何れか１項に記載のスクリュープレスにおける目詰
まり防止装置。4. The clogging prevention device for a screw press according to claim 1, wherein lubricating members (18) are attached to both side surfaces of the scraper (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002010393A JP3858701B2 (en) | 2002-01-18 | 2002-01-18 | Clogging prevention device in screw press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002010393A JP3858701B2 (en) | 2002-01-18 | 2002-01-18 | Clogging prevention device in screw press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003211292A true JP2003211292A (en) | 2003-07-29 |
| JP3858701B2 JP3858701B2 (en) | 2006-12-20 |
Family
ID=27648145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002010393A Expired - Fee Related JP3858701B2 (en) | 2002-01-18 | 2002-01-18 | Clogging prevention device in screw press |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3858701B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007105587A (en) * | 2005-10-12 | 2007-04-26 | Tsukishima Kikai Co Ltd | Filter apparatus |
| JP2010149094A (en) * | 2008-12-26 | 2010-07-08 | Sanki Eng Co Ltd | Screw press dehydrator |
| WO2019220828A1 (en) * | 2018-05-15 | 2019-11-21 | 株式会社荒井鉄工所 | Shearing member and filtration device |
| CN114405095A (en) * | 2022-01-19 | 2022-04-29 | 中国矿业大学 | Heavy metal sewage filtering method and equipment for ecological restoration |
-
2002
- 2002-01-18 JP JP2002010393A patent/JP3858701B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007105587A (en) * | 2005-10-12 | 2007-04-26 | Tsukishima Kikai Co Ltd | Filter apparatus |
| JP4493031B2 (en) * | 2005-10-12 | 2010-06-30 | 月島機械株式会社 | Filtration device |
| JP2010149094A (en) * | 2008-12-26 | 2010-07-08 | Sanki Eng Co Ltd | Screw press dehydrator |
| US11207617B2 (en) | 2018-05-05 | 2021-12-28 | Arai Machinery Corporation | Shearing member and filtration device |
| WO2019220828A1 (en) * | 2018-05-15 | 2019-11-21 | 株式会社荒井鉄工所 | Shearing member and filtration device |
| CN114405095A (en) * | 2022-01-19 | 2022-04-29 | 中国矿业大学 | Heavy metal sewage filtering method and equipment for ecological restoration |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3858701B2 (en) | 2006-12-20 |
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