JPH0621523Y2 - Clear water discharge device - Google Patents
Clear water discharge deviceInfo
- Publication number
- JPH0621523Y2 JPH0621523Y2 JP1989048609U JP4860989U JPH0621523Y2 JP H0621523 Y2 JPH0621523 Y2 JP H0621523Y2 JP 1989048609 U JP1989048609 U JP 1989048609U JP 4860989 U JP4860989 U JP 4860989U JP H0621523 Y2 JPH0621523 Y2 JP H0621523Y2
- Authority
- JP
- Japan
- Prior art keywords
- scum
- prevention cylinder
- water
- opening
- supernatant
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 98
- 230000002265 prevention Effects 0.000 claims description 45
- 239000006228 supernatant Substances 0.000 claims description 44
- 238000007599 discharging Methods 0.000 claims description 5
- 239000002351 wastewater Substances 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 3
- 230000009545 invasion Effects 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Removal Of Floating Material (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本発明は上澄水排出装置に係り、特に上澄水とスカムと
を分離して排出する上澄水排出装置に関する。Description: TECHNICAL FIELD The present invention relates to a supernatant water discharge device, and more particularly to a supernatant water discharge device that separates and discharges supernatant water and scum.
従来、廃水用貯水槽等の上澄水は、フロート式の上澄水
排出装置で貯水槽から排出されている。この上澄水排出
装置は、フロートで水面上に浮いた状態、又は水面下に
沈んだ状態に保たれ、沈んだ時に上澄水を排出し、浮い
た時に上澄水の排水を停止する。一方、廃水用貯留槽の
水面には、スカム及び浮上夾雑物が発生し浮遊している
場合が多く、これらの浮遊物は、通常フロート式のスカ
ムスキマ装置で貯留槽から排出されている。このスカム
スキマ装置はスカムの吸込口を所定の位置に設け、水面
表層部の水を吸込口からポンプで吸水すると共に、スカ
ム及び浮上夾雑物を同時に吸引し排出している。BACKGROUND ART Conventionally, supernatant water such as a waste water storage tank is discharged from the storage tank by a float type supernatant water discharge device. This supernatant water discharge device is kept in a state of floating above the water surface or sinking below the water surface by a float, discharges the supernatant water when it sinks, and stops draining the supernatant water when it floats. On the other hand, in many cases, scum and floating impurities are generated and float on the water surface of the wastewater storage tank, and these floating materials are usually discharged from the storage tank by a float type scum skimmer device. In this scum skimmer device, a suction port of the scum is provided at a predetermined position, water in the surface layer of the water surface is sucked by a pump from the suction port, and at the same time, the scum and floating impurities are sucked and discharged.
このスカム排出装置は上澄水排出装置と分離して設けら
れている。This scum discharging device is provided separately from the supernatant water discharging device.
しかしながら、前記スカム排出装置はスカムの吸込口を
所定の位置に設けているので、上澄水の水位が変動する
と、スカムの除去が困難になる場合がある。このような
事態が頻繁に発生すると、スカムが貯水槽内に徐々に増
加し、上澄水排出装置で上澄水を排出する時に、上澄水
にスカムが混入する虞がある。However, since the scum discharge device has the scum suction port at a predetermined position, it may be difficult to remove the scum when the water level of the supernatant water fluctuates. If such a situation occurs frequently, scum gradually increases in the water tank, and scum may be mixed in the supernatant water when the supernatant water is discharged by the supernatant water discharge device.
本考案はこのような事情に鑑みてなされたもので、水位
の変動に影響されることなく、上澄水とスカムとを確実
に分離して排出することができる上澄水排出装置を提供
することを目的とする。The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a supernatant water discharge device capable of reliably separating and discharging supernatant water and scum without being affected by fluctuations in water level. To aim.
本考案は前記目的を解決する為に、曝気、沈殿工程で有
機物汚水から分離された上澄水を排出工程で貯留槽から
排出する上澄水排出装置に於いて、前記貯留槽内で下端
が開口して筒状に形成され、スカムの侵入を防止すると
共に、下端の開口から上澄水のみの侵入を許容するスカ
ム防止筒と、前記スカム防止筒の上端と連結され、スカ
ム防止筒を上下移動可能に貯留槽内に支持した移動機構
と、前記スカム防止筒内に上端が開口して設けられ、ス
カム防止筒の下端の開口からスカム防止筒内に流入した
上澄水が該上端の開口から流入する筒状の上澄水排水ト
ラフと、一端が前記上澄水排水トラフに連通され、他端
が貯水槽外に開口され、スカム防止筒の上下移動時に屈
伸可能に関節状に連結された上澄水排出管と、上端が開
口して前記スカム防止筒の外周にリング状に設けられ、
水面上に浮遊しているスカムが流入する開口をスカム防
止筒の下端の開口より高い位置に形成したスカム排出ト
ラフと、一端が前記スカム排出トラフに連通され、他端
が貯水槽外に開口され、スカム防止筒の上下移動時に屈
伸可能に関節状に連結されたスカム排出管と、から成る
ことを特徴とする。In order to solve the above-mentioned object, the present invention provides a supernatant water discharge device for discharging supernatant water separated from organic wastewater in aeration and precipitation steps from a storage tank in a discharge step, with a lower end opened in the storage tank. It is formed in a tubular shape to prevent invasion of scum and is connected to the scum prevention cylinder that allows only clear water to enter from the opening at the lower end and the upper end of the scum prevention cylinder, enabling the scum prevention cylinder to move up and down. A moving mechanism supported in the storage tank, and a cylinder provided with an upper end opened in the scum prevention cylinder, and clear water flowing into the scum prevention cylinder from the opening at the lower end of the scum prevention cylinder flows in from the opening at the upper end. -Shaped clear water drainage trough, and one end communicating with the above-mentioned clear water drainage trough, the other end opened to the outside of the water tank, and a clear water discharge pipe articulated so as to bend and expand when the scum prevention cylinder moves up and down. , The top end is open and the scum Provided in a ring shape on the outer periphery of the stop cylinder,
A scum discharge trough having an opening through which scum floating on the water surface flows is formed at a position higher than the opening at the lower end of the scum prevention cylinder, one end communicates with the scum discharge trough, and the other end opens outside the water tank. And a scum discharge pipe that is articulated so as to bend and stretch when the scum prevention cylinder moves up and down.
本考案によれば、下端が開口して筒状に形成され、スカ
ム（４６）の侵入を防止すると共に、下端の開口から上
澄水のみの侵入を許容するスカム防止筒（１０）の内部
に、筒状の上澄水排出トラフ（２０）を設けると共に、
スカム防止筒（１０）の外周にスカム防止筒（１０）の
下端開口より高い位置に開口を形成したスカム排出トラ
フ（３４）をリング状に設け、スカム防止筒（１０）の
上端に連結された移動機構（１６）でスカム防止筒を貯
留槽（１２）内で上下動させるようにした。According to the present invention, the lower end is formed in a tubular shape to prevent the scum (46) from entering, and inside the scum preventing cylinder (10) which allows only clear water to enter from the opening at the lower end, With a cylindrical clear water discharge trough (20),
A scum discharge trough (34) having an opening formed at a position higher than the lower end opening of the scum prevention cylinder (10) is provided on the outer circumference of the scum prevention cylinder (10) in a ring shape and connected to the upper end of the scum prevention cylinder (10). The scum prevention cylinder is moved up and down in the storage tank (12) by the moving mechanism (16).
これにより、上澄水排水トラフ（２０）とスカム排出ト
ラフ（３４）とはスカム防止筒（１０）により確実に区
画されると共に、スカム排出トラフ（３４）の開口はス
カム防止筒（１０）の下端開口より高い位置に形成され
ているので、水面上に浮遊するスカム（４６）はスカム
防止筒（１０）外のスカム排出トラフ（３４）に流入
し、上澄水は水面より下のスカム（４６）は浮遊しない
位置に開口を有するスカム防止筒（１０）の下端開口か
らスカム防止筒（１０）内に流入して上澄水排出トラフ
（２０）に流れ込む。従って、排出すべき上澄水にスカ
ム（４６）が混入しないように上澄水とスカム（４６）
を確実に分離して槽（１２）外に排出することができ
る。また、上記構造にすることにより、上澄水排水トラ
フ（２０）とスカム排出トラフ（３４）の全体を上澄水
やスカム（４６）の排出に寄与させることができるの
で、装置をコンパクト化することができる。As a result, the clear water drainage trough (20) and the scum discharge trough (34) are reliably partitioned by the scum prevention cylinder (10), and the opening of the scum discharge trough (34) is at the lower end of the scum prevention cylinder (10). Since it is formed at a position higher than the opening, the scum (46) floating on the water surface flows into the scum discharge trough (34) outside the scum prevention cylinder (10), and the clear water is scum (46) below the water surface. Flows into the scum prevention cylinder (10) from the lower end opening of the scum prevention cylinder (10) having an opening at a position where it does not float and flows into the clear water discharge trough (20). Therefore, in order to prevent the scum (46) from mixing with the supernatant water to be discharged, the supernatant water and the scum (46)
Can be reliably separated and discharged to the outside of the tank (12). Further, with the above structure, the whole of the supernatant water drainage trough (20) and the scum discharge trough (34) can contribute to the discharge of the supernatant water and the scum (46), so that the apparatus can be made compact. it can.
以下添付図面に従って本考案に係る上澄水排出装置の好
ましい実施例を詳説する。Hereinafter, preferred embodiments of a supernatant water discharge device according to the present invention will be described in detail with reference to the accompanying drawings.
図には、本考案に係る上澄水排出装置の実施例を示す側
断面図が示されている。FIG. 1 is a side sectional view showing an embodiment of a supernatant water discharge device according to the present invention.
貯水槽１２内に設けられている上澄水排出装置８は、ス
カム防止筒１０を有し、スカム防止筒１０は全体に筒状
に形成され、その下端部１０Ａには受皿状の排水トラフ
３４が形成されている。スカム防止筒１０の上端部１０
Ｂにはシリンダ１４のロッド部１６が取付けられてい
る。シリンダ１４のシリンダ部１７は貯水槽１２の外側
に立設されている。従って、スカム防止筒１０はロッド
部１６の伸縮で貯水槽１２内を上下方向に移動する。The clear water discharge device 8 provided in the water storage tank 12 has a scum prevention cylinder 10, and the scum prevention cylinder 10 is formed in a tubular shape as a whole, and has a saucer-shaped drainage trough 34 at its lower end 10A. Has been formed. The upper end 10 of the scum prevention cylinder 10
The rod portion 16 of the cylinder 14 is attached to B. The cylinder portion 17 of the cylinder 14 is erected outside the water tank 12. Therefore, the scum prevention cylinder 10 moves up and down in the water tank 12 by the expansion and contraction of the rod portion 16.
また、前記スカム防止筒１０内には、上澄水排水トラフ
２０が設けられる。上澄水排水トラフ２０は筒状に形成
され、その中央部には上澄水排水口１８が形成され、そ
の底部にはリンクパイプ２８の一端が開口して接続され
ている。リンクパイプ２８は関節部２２、２４、２６で
伸縮自在に連結されている。リンクパイプ２８の他端は
パイプ３０の一端に連結され、パイプ３０の他端は貯水
槽１２の外側に開口している。A clear water drainage trough 20 is provided in the scum prevention cylinder 10. The clear water drainage trough 20 is formed in a tubular shape, a clear water drainage port 18 is formed at the center thereof, and one end of a link pipe 28 is opened and connected to the bottom thereof. The link pipe 28 is connected by joints 22, 24 and 26 so as to be expandable and contractible. The other end of the link pipe 28 is connected to one end of the pipe 30, and the other end of the pipe 30 is open to the outside of the water tank 12.
また、前記スカム防止筒１０の排水トラフ３４には、リ
ンクパイプ４２の一端が接続されている。リンクパイプ
４２は関節部３６、３８、４０で屈伸自在に連結されて
いる。リンクパイプ４２の他端はパイプ４４の一端に連
結され、パイプ４４の他端は貯水槽１２の外側に開口し
ている。Further, one end of a link pipe 42 is connected to the drainage trough 34 of the scum prevention cylinder 10. The link pipe 42 is flexibly connected by joints 36, 38, 40. The other end of the link pipe 42 is connected to one end of a pipe 44, and the other end of the pipe 44 is open to the outside of the water tank 12.
従って、前記スカム防止筒１０がシリンダ１４の伸縮作
動で貯水槽１２内で上下移動すると、リンクパイプ２８
及びリンクパイプ４２は、それぞれ関節部２２、２４、
２６及び関節部３６、３８、４０で屈伸する。Therefore, when the scum prevention cylinder 10 moves up and down in the water tank 12 by the expansion and contraction operation of the cylinder 14, the link pipe 28
And the link pipe 42 have joints 22, 24,
26 and the joints 36, 38 and 40.
次に、前記の如く構成された上澄水排出装置の作用につ
いて説明する。Next, the operation of the supernatant water discharge device configured as described above will be described.
先ず、貯水槽１２内で曝気、沈殿処理を行い、貯水槽１
２内の汚水を沈殿汚泥と上澄水とに分離する。この状態
でピストン１６を伸長してスカム防止筒１０を下降し、
上澄水排出口１８及びスカム排出口３２を上澄水の水面
下に配置する。従って、上澄水の水面部分がスカム排出
口３２を経て排水トラフ３４内に流れ込むので、水面上
を浮遊しているスカム４６は、水の流れと共にスカム防
止筒１０方向に流動しスカム排出口３２に流入する。ス
カム排出口３２に流入したスカム４６は、リンクパイプ
４２を介して貯水槽１２外に排出される。First, aeration and sedimentation treatment is performed in the water storage tank 12, and the water storage tank 1
The wastewater in 2 is separated into settled sludge and supernatant water. In this state, the piston 16 is extended to lower the scum prevention cylinder 10,
The supernatant water outlet 18 and the scum outlet 32 are arranged below the surface of the supernatant water. Therefore, since the water surface portion of the clear water flows into the drainage trough 34 via the scum outlet 32, the scum 46 floating on the water surface flows in the direction of the scum preventing cylinder 10 along with the flow of water to the scum outlet 32. Inflow. The scum 46 that has flowed into the scum outlet 32 is discharged to the outside of the water tank 12 through the link pipe 42.
同時に上澄水は、スカム防止筒１０の下端部１０Ａの開
口からスカム防止筒１０内に侵入し、上澄水排出口１８
を経て上澄水排水トラフ２０に流れ込む。この場合、ス
カム４６は水面に浮遊しているので、スカム防止筒１０
に遮られてスカム防止筒１０内に流入することができな
い。従って、スカム防止筒１０内に取付けられた上澄水
排出口１８には上澄水のみが流入する。At the same time, the supernatant water enters the scum prevention cylinder 10 through the opening of the lower end portion 10A of the scum prevention cylinder 10, and the supernatant water discharge port 18
And then flows into the clear water drainage trough 20. In this case, since the scum 46 floats on the water surface, the scum prevention cylinder 10
Therefore, it is impossible to flow into the scum preventing cylinder 10 because of being blocked by. Therefore, only the supernatant water flows into the supernatant water discharge port 18 mounted in the scum prevention cylinder 10.
また、上澄水の水位（ＷＬ）が現状の水位より高く、又
は低くなった場合、シリンダ１６を収縮又は伸長してス
カム防止筒１０を上下移動し、上記説明と同様にスカム
４６と上澄水とを分離して貯水槽１２外に排出する。When the water level (WL) of the supernatant water becomes higher or lower than the current water level, the cylinder 16 is contracted or extended to move the scum preventing cylinder 10 up and down, and the scum 46 and the supernatant water are discharged in the same manner as described above. Are separated and discharged to the outside of the water storage tank 12.
このように、本発明によれば、上澄水とスカム４６とを
確実に分離して排水することが出来、また上澄水排出ト
ラフ２０とスカム排出トラフ３４とを一体に設けて上澄
水及びスカムの排出作用を同時に行うようにしたので、
ＷＬに影響することなくスカムを排出することができ
る。As described above, according to the present invention, the supernatant water and the scum 46 can be reliably separated and drained, and the supernatant water discharge trough 20 and the scum discharge trough 34 are integrally provided to remove the supernatant water and the scum. I tried to do the discharge action at the same time,
Scum can be discharged without affecting WL.
以上説明したように本考案の上澄水排出装置によれば、
下端が開口して筒状に形成され、スカムの侵入を防止す
ると共に、下端の開口から上澄水のみの侵入を許容する
スカム防止筒の内部に、筒状の上澄水排水トラフを設
け、スカム防止筒の外周にスカム防止筒の下端の開口よ
り高い位置に開口を形成したスカム排出トラフをリング
状に設け、スカム防止筒の上端に連結された移動機構で
スカム防止筒を貯留槽内で上下動させるようにした。As described above, according to the clear water discharge device of the present invention,
The bottom end is opened and formed in a tube shape to prevent the entry of scum, and the inside of the scum prevention tube that allows only the supernatant water to enter from the opening of the bottom edge is provided with a tubular supernatant drainage trough to prevent scum. A ring-shaped scum discharge trough with an opening formed at a position higher than the lower end opening of the scum prevention cylinder is provided on the outer circumference of the cylinder, and the movement mechanism connected to the upper end of the scum prevention cylinder moves the scum prevention cylinder up and down in the storage tank. I was allowed to.
これにより、上澄水とスカムを確実に分離して槽外に排
出することができると共に装置をコンパクト化すること
ができる。As a result, the supernatant water and the scum can be reliably separated and discharged to the outside of the tank, and the device can be made compact.
図は本考案に係る上澄水排出装置の実施例を示す側断面
図である。 １０…スカム防止筒、１２…貯水槽、１６…ロッド部、
１８…上澄水排出口、２０…上澄水排出トラフ、２８、
４２…リンクパイプ、３２…スカム排出口、３４…スカ
ム排出トラフ。FIG. 1 is a side sectional view showing an embodiment of a supernatant water discharge device according to the present invention. 10 ... Scum prevention cylinder, 12 ... Water tank, 16 ... Rod part,
18 ... Clear water discharge port, 20 ... Clear water discharge trough, 28,
42 ... Link pipe, 32 ... Scum discharge port, 34 ... Scum discharge trough.
Claims (1)
た上澄水を排出工程で貯留槽から排出する上澄水排出装
置に於いて、 前記貯留槽内で下端が開口して筒状に形成され、スカム
の侵入を防止すると共に、下端の開口から上澄水のみの
侵入を許容するスカム防止筒と、 前記スカム防止筒の上端と連結され、スカム防止筒を上
下移動可能に貯留槽内に支持した移動機構と、 前記スカム防止筒内に上端が開口して設けられ、スカム
防止筒の下端の開口からスカム防止筒内に流入した上澄
水が該上端の開口から流入する筒状の上澄水排水トラフ
と、 一端が前記上澄水排水トラフに連通され、他端が貯水槽
外に開口され、スカム防止筒の上下移動時に屈伸可能に
関節状に連結された上澄水排出管と、 上端が開口して前記スカム防止筒の外周にリング状に設
けられ、水面上に浮遊しているスカムが流入する開口を
スカム防止筒の下端の開口より高い位置に形成したスカ
ム排出トラフと、 一端が前記スカム排出トラフに連通され、他端が貯水槽
外に開口され、スカム防止筒の上下移動時に屈伸可能に
関節状に連結されたスカム排出管と、 から成ることを特徴とする上澄水排出装置。1. A supernatant water discharge device for discharging supernatant water separated from organic wastewater in aeration and precipitation steps from a storage tank in a discharge step, wherein a lower end is opened in the storage tank to form a tubular shape. , A scum prevention cylinder that prevents invasion of scum and allows only clear water to enter from an opening at a lower end, and is connected to an upper end of the scum prevention cylinder, and supports the scum prevention cylinder in a storage tank so as to be vertically movable. A moving mechanism, and a tubular clear water drainage trough provided with an upper end opened in the scum prevention cylinder, and clear water flowing into the scum prevention cylinder from an opening at the lower end of the scum prevention cylinder flows in from the opening at the upper end. The one end communicates with the supernatant drainage trough, the other end opens outside the water tank, and the supernatant drainage pipe is articulated so that it can bend and stretch when the scum prevention cylinder moves up and down. The outer circumference of the scum prevention cylinder is A scum discharge trough that has an opening formed in a scoop shape and in which the scum floating above the water flows in is formed at a position higher than the opening at the lower end of the scum prevention cylinder, and one end communicates with the scum discharge trough and the other end A clear water discharge device comprising: a scum discharge pipe that is open to the outside of a water tank and is articulated so that it can bend and stretch when the scum prevention cylinder moves up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989048609U JPH0621523Y2 (en) | 1989-04-25 | 1989-04-25 | Clear water discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989048609U JPH0621523Y2 (en) | 1989-04-25 | 1989-04-25 | Clear water discharge device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02142604U JPH02142604U (en) | 1990-12-04 |
| JPH0621523Y2 true JPH0621523Y2 (en) | 1994-06-08 |
Family
ID=31565573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989048609U Expired - Fee Related JPH0621523Y2 (en) | 1989-04-25 | 1989-04-25 | Clear water discharge device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621523Y2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55167405U (en) * | 1979-05-21 | 1980-12-02 | ||
| JPS6137292U (en) * | 1984-08-07 | 1986-03-07 | 株式会社 西原環境衛生研究所 | Scum treatment equipment for supernatant discharge equipment |
| JPH0344244Y2 (en) * | 1985-09-28 | 1991-09-18 | ||
| JPS6327832U (en) * | 1986-08-08 | 1988-02-24 |
-
1989
- 1989-04-25 JP JP1989048609U patent/JPH0621523Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02142604U (en) | 1990-12-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |