JP2916363B2 - Sedimentation washer - Google Patents
Sedimentation washerInfo
- Publication number
- JP2916363B2 JP2916363B2 JP5350062A JP35006293A JP2916363B2 JP 2916363 B2 JP2916363 B2 JP 2916363B2 JP 5350062 A JP5350062 A JP 5350062A JP 35006293 A JP35006293 A JP 35006293A JP 2916363 B2 JP2916363 B2 JP 2916363B2
- Authority
- JP
- Japan
- Prior art keywords
- screen
- screw conveyor
- tank
- trough
- sand
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
- B03B5/52—Spiral classifiers
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、一つの洗浄槽内で沈砂
の洗浄を行い、かつ洗浄後の汚砂とスクリーン渣とを分
離して取り出すようにした沈砂洗浄機に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sedimentation washer which cleans settled sand in a single washing tank, and separates and removes washed sand and screen residue.
【０００２】[0002]
【従来の技術】下水処理場において沈砂の洗浄は、洗浄
槽内へ投入された沈砂を撹拌羽根またはジェット水流に
て洗浄水とともに撹拌して洗浄し、汚砂とスクリーン渣
とを分離し、槽底に沈降する汚砂はスクリューコンベア
にて、また水中に浮遊するスクリーン渣はバースクリー
ンにて濾過し、裏掻レーキ式除塵機、あるいは濾面走行
式除塵機にてそれぞれ個別に除去するようにしている。2. Description of the Related Art In a sewage treatment plant, sediment is washed by stirring the sediment introduced into a washing tank together with washing water by a stirring blade or a jet water stream to separate dirty sand and screen residue. Soil settled to the bottom is filtered by a screw conveyor, and screen residue floating in the water is filtered by a bar screen, and removed individually by a back-rake type dust remover or a filter-type traveling dust remover. ing.
【０００３】[0003]
【発明が解決しようとする課題】従ってスクリーン渣を
除去する、これら裏掻レーキ式除塵機等の除塵機は、チ
ェンにて駆動されているため、チェンに伸びに対するテ
ークアップ装置を要し、またチェンにゴミが付着するた
め、この付着ゴミの除去手段を要し、メンテナンスが頻
雑となる欠点を有している。Therefore, since these dust removers, such as the back-rake type dust remover, which remove the screen residue, are driven by a chain, the chain requires a take-up device for elongation. Since dust adheres to the chain, a means for removing the attached dust is required, and there is a disadvantage that maintenance becomes complicated.
【０００４】本発明はチェン式駆動の除塵機を用いるこ
となく、汚砂とスクリーン渣との取り出しを個別的に行
い、しかもメンテナンスフリーにて作業を行うことを目
的とする。SUMMARY OF THE INVENTION It is an object of the present invention to separately remove soil and screen residue without using a chain-type dust remover, and to perform a maintenance-free operation.
【０００５】[0005]
【課題を解決するための手段】本発明は上記目的を達成
するためになしたもので、洗浄水及び汚砂を供給される
洗浄槽と、この洗浄槽の一側底部に、槽上方部に傾斜し
て形成した洗浄槽のトラフ部内に回動自在に設けた汚砂
移送用の下部スクリューコンベアと、この下部スクリュ
ーコンベアの上方に平行して配設された半円形その他円
弧状断面を有するトラフ状スクリーンと、このトラフ状
スクリーン内にに回動自在に配設してスクリーンにて捕
捉されたスクリーン渣を上方へ移送する上部スクリュー
コンベアとより構成されたことを要旨とする。DISCLOSURE OF THE INVENTION The present invention has been made to achieve the above object, and has a cleaning tank to which cleaning water and dirty sand are supplied, a cleaning tank at one side bottom, and a cleaning tank at an upper part of the tank. A lower screw conveyor for transferring contaminated sand rotatably provided in a trough portion of a cleaning tank formed with an inclination, and a trough having a semicircular or other arc-shaped cross-section disposed in parallel above the lower screw conveyor. The gist of the present invention consists of a screen-like screen and an upper screw conveyor that is rotatably arranged in the trough-like screen and transfers screen residue captured by the screen upward.
【０００６】[0006]
【作用】洗浄槽内に、上部と下部のスクリューコンベア
を平行に傾斜して配設し、かつこの下部スクリューコン
ベアを洗浄槽のトラフ内に、また上部スクリューコンベ
アを半円状のトラフ状スクリーン内にそれぞれ回動自在
にして支持しているので、槽内に投入された沈砂は洗浄
され、汚砂とスクリーン渣とは分離して取り出すことが
できると共に、駆動部にチェンを設けていないので、保
守が簡易となる。In the washing tank, the upper and lower screw conveyors are arranged in parallel and inclined, and the lower screw conveyor is placed in the trough of the washing tank, and the upper screw conveyor is placed in the semicircular trough screen. Each of the tanks is rotatably supported, so that the sand deposited in the tank is washed, and the sediment and screen residue can be separated and taken out, and there is no chain in the drive unit. Maintenance is simplified.
【０００７】[0007]
【実施例】以下本発明沈砂洗浄機を図示の実施例に基づ
いて説明する。図において１は所要の容量と形状を有す
る汚砂の洗浄槽で、この洗浄槽１内には所要容量の洗浄
水を供給する手段と、下水処理場等より掻き揚げられた
沈砂を供給する手段が備えられると共に、この槽内供給
された沈砂と洗浄水を撹拌して洗浄する手段、例えば図
示のように撹拌装置２あるいはジェット水流用ノズル等
を設ける。BRIEF DESCRIPTION OF THE DRAWINGS FIG. In the figure, reference numeral 1 denotes a washing tank for dirty sand having a required capacity and shape, and a means for supplying a required amount of washing water and a means for supplying sediment sand scooped up from a sewage treatment plant or the like in the washing tank 1. And means for stirring and washing the settling sand and the washing water supplied in the tank, for example, a stirrer 2 or a jet water jet nozzle as shown in the figure.
【０００８】この洗浄槽１は、その底部を撹拌装置２を
設置した位置より低位置になるようにし、この槽の一側
壁を槽の最低通常水位より上方位置に斜め上方向に傾斜
したトラス部２１を一体に形成すると共に、このトラス
部２１内にトラス部に沿ってそのほぼ全長にわたって汚
砂搬送用の下部スクリューコンベア３を回動自在に配設
し、かつこの下部スクリュー３はその下端を槽最低位置
に、また上端は洗浄槽上方に配設した沈砂ホッパー４に
それぞれ達するようになし、駆動装置３Ｍにて予め定め
た速度に、または可調速的に駆動されるようになす。The washing tub 1 has its bottom at a position lower than the position where the stirrer 2 is installed, and one side wall of the tub is tilted obliquely upward to a position above the lowest normal water level of the tank. 21 is formed integrally, and a lower screw conveyor 3 for conveying the contaminated sand is rotatably disposed along the truss portion along the truss portion over substantially the entire length thereof, and the lower screw 3 has a lower end thereof. The lower end of the tank and the upper end thereof reach the sedimentation hopper 4 disposed above the washing tank, and are driven at a predetermined speed or adjustable speed by the driving device 3M.
【０００９】また洗浄槽内にはこの下部スクリューコン
ベア３と平行して、槽底部より槽上方へ傾斜した上部ス
クリューコンベア５を回動自在に配設し、駆動装置５Ｍ
にて同様に必要に応じ、可調速的に駆動される。In the washing tank, an upper screw conveyor 5 is provided rotatably in parallel with the lower screw conveyor 3 and inclined upward from the tank bottom to the tank.
Are also driven at an adjustable speed as necessary.
【００１０】この上部スクリューコンベア５は槽内に投
入された沈砂が洗浄装置２にて洗浄され、水中に浮遊す
るスクリーン渣をトラス状スクリーン６にて除去された
ものを掻き揚げ排除するもので、槽底部より沈砂ホッパ
ー４より上方位置にあるスクリーン渣ホッパー７まで達
する長さを有するものとする。[0010] The upper screw conveyor 5 is used for scavenging sand deposited in the tank by the washing device 2 and removing and removing the screen residue floating in the water by the truss-like screen 6 by scooping. It has a length reaching the screen residue hopper 7 above the sedimentation hopper 4 from the bottom of the tank.
【００１１】また上部スクリューコンベア５には、その
下部より少なくとも洗浄槽の許容最高水位より少し上方
位置まで半円形、その他円弧状断面を有するトラス状ス
クリーン６を配設され、このトラス状スクリーン６の上
端には同一軸心上に、このスクリーンと同様の形状をし
た半円形断面のシュート８を連設し、この半円形のトラ
ス状スクリーン，シュート内に前記上部スクリューコン
ベア５が回動自在に配設される。The upper screw conveyor 5 is provided with a truss-like screen 6 having a semicircular shape and other arc-shaped cross sections from a lower portion thereof to at least a position slightly above the maximum allowable water level of the washing tank. At the upper end, a chute 8 having a semicircular cross section having the same shape as the screen is continuously provided on the same axis, and the upper screw conveyor 5 is rotatably arranged in the semicircular truss-like screen and the chute. Is established.
【００１２】トラス状スクリーン６は図２に詳示する如
く、所要の板厚と幅を有するフラットバーを用い、これ
を半円形断面の中心からそれぞれ放射方向に半円形に、
かつ所定間隔に配列すると共に、トラス状スクリーンの
内周側の各フラットバー間隔よりも外周側のフラットバ
ー間隔を大となるように、すなわち水の流出方向にスク
リーン間隔を大とするようにし、これによりスクリーン
渣による目詰まりを未然に防止するようになす。As shown in FIG. 2, the truss-like screen 6 uses a flat bar having a required thickness and width, and the flat bar is formed into a semicircle in the radial direction from the center of the semicircular cross section.
And arranged at a predetermined interval, so that the flat bar interval on the outer peripheral side is larger than the flat bar interval on the inner peripheral side of the truss-like screen, that is, to increase the screen interval in the outflow direction of water, Thereby, clogging due to the screen residue is prevented beforehand.
【００１３】従って上述の如く構成される沈砂洗浄機に
おいて、洗浄槽内に供給された沈砂は、撹拌羽根または
ジェット水流、あるいはこの組み合わせにて撹拌洗浄さ
れ、上部スクリューコンベアのトラフ部分となるトラフ
状スクリーンを通過した洗浄水は越流水として排水され
ると共に、この洗浄水中に浮遊するゴミ（スクリーン
渣）は、このトラフ状スクリーンの内周面に付着して取
り除かれる。Therefore, in the sand sedimentation washer constructed as described above, the sediment fed into the washing tank is agitated and washed by a stirring blade or a jet water stream, or a combination thereof, and is formed into a trough shape which becomes a trough portion of an upper screw conveyor. Wash water that has passed through the screen is drained as overflow water, and dust (screen residue) floating in the wash water adheres to the inner peripheral surface of the trough screen and is removed.
【００１４】この上部スクリューコンベアは回動してい
るため、スクリーン面に付着したゴミはスクリューコン
ベアの羽根の外縁で上方向へ移動させられ、すなわち上
方へ搬送され、シュートを経て水切りされた後、スクリ
ューコンベア端部に配設されたスクリーン渣ホッパー７
を経て槽外へ排出される。Since the upper screw conveyor is rotating, dust adhering to the screen surface is moved upward at the outer edges of the blades of the screw conveyor, that is, conveyed upward, drained through a chute, and then drained. Screen residue hopper 7 arranged at the end of the screw conveyor
Through the tank.
【００１５】また洗浄され、浮遊スクリーン渣をスクリ
ーンにて除去された汚砂は、このトラフ状スクリーンの
目を通過して洗浄槽底部のトラフ部に堆積せんとする。
しかしこの下部スクリューコンベアも回動されているの
で、この汚砂も下部スクリューコンベアにて上方へ移送
され、沈砂ホッパーより槽外へ排出されるものである。Further, the dirt that has been washed and the floating screen residue has been removed by the screen passes through the eyes of the trough screen and is deposited on the trough at the bottom of the cleaning tank.
However, since the lower screw conveyor is also rotated, the contaminated sand is also transferred upward by the lower screw conveyor and discharged out of the tank from the sand hopper.
【００１６】[0016]
【発明の効果】本発明沈砂洗浄機は、洗浄水及び汚砂を
供給される洗浄槽と、この洗浄槽の一側底部に、槽上方
部に傾斜して形成した洗浄槽のトラフ部内に回動自在に
設けた汚砂移送用の下部スクリューコンベアと、この下
部スクリューコンベアの上方に平行して配設された半円
形断面を有するトラフ状スクリーンと、このトラフ状ス
クリーン内にに回動自在に配設してスクリーンにて捕捉
されたスクリーン渣を上方へ移送する上部スクリューコ
ンベアとより構成しているため、沈砂の洗浄と、沈砂・
スクリーン渣との分離取り出しが同時に行え、しかも駆
動部にチェンを用いていないので、保守が簡易となり、
連続使用が可能となる等の利点を有する。According to the present invention, there is provided a sedimentation washer in which a washing tank to which washing water and contaminated sand are supplied and a trough section of the washing tank formed at one bottom of one side of the washing tank and inclined at an upper part of the tank. A lower screw conveyor movably provided for transferring contaminated sand, a trough-shaped screen having a semicircular cross-section disposed in parallel above the lower screw conveyor, and rotatably inserted into the trough-shaped screen. Since it consists of an upper screw conveyor that disposes and transfers the screen residue captured by the screen upwards, it cleans the sand,
Separation and removal from the screen residue can be performed at the same time, and since the chain is not used for the drive unit, maintenance is simplified,
It has advantages such as being able to be used continuously.
【図１】本発明沈砂洗浄機の一実施例を示す縦断正面図
である。FIG. 1 is a vertical sectional front view showing an embodiment of a sand setting washer of the present invention.
【図２】同縦断側面図である。FIG. 2 is a vertical sectional side view of the same.
１ 洗浄槽 １１ トラフ部 ３ 下部スクリューコンベア ５ 上部スクリューコンベア ６ トラフ状スクリーン DESCRIPTION OF SYMBOLS 1 Washing tank 11 Trough part 3 Lower screw conveyor 5 Upper screw conveyor 6 Trough screen
Claims (1)
この洗浄槽の一側底部に、槽上方部に傾斜して形成した
洗浄槽のトラフ部内に回動自在に設けた汚砂移送用の下
部スクリューコンベアと、この下部スクリューコンベア
の上方に平行して配設された円弧状断面を有するトラフ
状スクリーンと、このトラフ状スクリーン内にに回動自
在に配設してスクリーンにて捕捉されたスクリーン渣を
上方へ移送する上部スクリューコンベアとより構成され
たことを特徴とする沈砂洗浄機。A washing tank to which washing water and dirty sand are supplied;
At the bottom of one side of the washing tank, a lower screw conveyor for transferring dirty sand rotatably provided in a trough portion of the washing tank formed to be inclined at an upper part of the tank, and in parallel with the upper part of the lower screw conveyor. A trough-shaped screen having an arcuate cross section is provided, and an upper screw conveyor is provided rotatably in the trough-shaped screen and transports screen residue captured by the screen upward. A sedimentation washer characterized by that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5350062A JP2916363B2 (en) | 1993-12-27 | 1993-12-27 | Sedimentation washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5350062A JP2916363B2 (en) | 1993-12-27 | 1993-12-27 | Sedimentation washer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07185388A JPH07185388A (en) | 1995-07-25 |
| JP2916363B2 true JP2916363B2 (en) | 1999-07-05 |
Family
ID=18407975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5350062A Expired - Fee Related JP2916363B2 (en) | 1993-12-27 | 1993-12-27 | Sedimentation washer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2916363B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19823674A1 (en) * | 1998-05-20 | 1999-12-02 | Alfred Schymalla | Apparatus for removing organic components from sand by countercurrent treatment with water |
| DE202017006034U1 (en) * | 2017-11-22 | 2019-02-25 | Doppstadt Austria Gmbh | Device for separating material mixtures |
| CN109909053B (en) * | 2019-04-19 | 2024-04-02 | 浙江森友环保成套设备有限公司 | Sand and stone separation cleaning equipment |
| CN112081546B (en) * | 2020-09-14 | 2024-05-14 | 浙江交工集团股份有限公司 | Resource recycling device for impact drilling and construction method thereof |
| CN115155789B (en) * | 2022-07-05 | 2023-08-08 | 石城县华昌矿山机械有限公司 | Spiral sand washer for building sand material |
-
1993
- 1993-12-27 JP JP5350062A patent/JP2916363B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07185388A (en) | 1995-07-25 |
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Legal Events
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Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
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