JPS5827965B2 - Sediment basin machinery and equipment - Google Patents
Sediment basin machinery and equipmentInfo
- Publication number
- JPS5827965B2 JPS5827965B2 JP54060686A JP6068679A JPS5827965B2 JP S5827965 B2 JPS5827965 B2 JP S5827965B2 JP 54060686 A JP54060686 A JP 54060686A JP 6068679 A JP6068679 A JP 6068679A JP S5827965 B2 JPS5827965 B2 JP S5827965B2
- Authority
- JP
- Japan
- Prior art keywords
- sand
- screw conveyor
- settling basin
- basin
- grid
- 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
Links
Description
【発明の詳細な説明】
本発明は、上下水等の処理場における沈砂、篩渣を除去
するための沈砂池の機械設備に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to mechanical equipment for a settling basin for removing settled sand and sieve residue in water and sewage treatment plants.
従来のスクリュウコンベヤを用いた沈砂池機械設備を第
1図に基いて説明すると、沈砂池1は、その上流を原水
の流入する流入路2に面し、その下流は揚水ポンプ(図
示せず)に連通している。The mechanical equipment of a settling basin using a conventional screw conveyor will be explained based on FIG. 1. A settling basin 1 faces an inlet channel 2 into which raw water flows in upstream, and a water pump (not shown) downstream thereof. is connected to.
そして、揚水ポンプ等の障害となる原水中の篩渣は、沈
砂池1の下流端に篩渣掻揚装置3を設げて除去する。A sieve residue scraping device 3 is provided at the downstream end of the settling basin 1 to remove sieve residue in the raw water that may be a hindrance to the water pump or the like.
この除塵機3は、細目格子4に係止した篩渣を、スプロ
ケットホイール5,6間を回動するチェノ7に設けたレ
ーキ8で掻揚げるようになっている。This dust remover 3 is configured to scrape up the sieve residue caught on a fine grid 4 with a rake 8 provided on a chino 7 that rotates between sprocket wheels 5 and 6.
また、揚水ポンプ及び後段に設ける処理設備の障害とな
る沈砂は、沈砂池1の池底剖に設けた沈砂掻寄用のスク
リュウコンベヤ9により、沈砂池1の上流近傍に形成し
た沈砂ピット10に掻寄せる。In addition, the sediment that obstructs the pump and the processing equipment installed in the latter stage is removed from the sediment pit 10 formed near the upstream of the sediment settling basin 1 by means of a screw conveyor 9 for scraping up sediment installed at the bottom of the settling basin 1. Raise it.
沈砂ピット10に集めた沈砂は、揚砂ポンプ11で沈砂
池の外部に排出する。The sand collected in the sand settling pit 10 is discharged to the outside of the sand settling basin by a sand pump 11.
さらに、揚砂ポンプ11の障害となる篩渣は、沈砂ピッ
ト10中流側に流入路2と対面して設けた粗目格子12
により、沈砂池1内への流入を阻止している。Furthermore, the sieve residue that becomes an obstacle to the sand pump 11 is removed by a coarse grid 12 provided on the midstream side of the sand settling pit 10 facing the inlet channel 2.
This prevents inflow into the settling basin 1.
上記従来の沈砂池機械設備では次のような欠点があった
。The conventional sand settling basin mechanical equipment mentioned above had the following drawbacks.
(1)沈砂池1内に複数の格子4及び12を必要としし
かも上流側の粗目格子12は、流入を粗生された篩渣に
より、原水の流入抵抗を増加させる作用をする。(1) A plurality of grids 4 and 12 are required in the settling basin 1, and the coarse grid 12 on the upstream side has the effect of increasing the inflow resistance of raw water due to the rough sieve residue.
この作用は原水の渦流を誘起するので、沈砂池1内の砂
の沈殿を妨げるようになる。This action induces a vortex in the raw water, which prevents the sand from settling in the settling basin 1.
この結果、沈砂池1の下流に設けてL・る揚水ポンプに
障害をきたすようになる。As a result, the L.L. water pump installed downstream of the settling basin 1 will be impaired.
(2)細目格子4の下部付近に沈殿した沈砂に対しては
、何んら、この沈砂を沈砂ピット10に掻寄せる手段が
ない。(2) There is no means to collect the settled sand near the bottom of the fine grid 4 into the sand settling pit 10.
このため、下部スプロケットホイール6が沈砂に埋没し
て、除塵機が運転不能になる欠点があった。As a result, the lower sprocket wheel 6 is buried in the sand, making the dust remover inoperable.
その結果、格子40前後に大きな水位差が生じて、揚水
ポンプの運転が不能になる危険性があった。As a result, there was a risk that a large water level difference would occur before and after the grid 40, making it impossible to operate the water pump.
本発明の目的は、前記従来の欠点を解消すると共に、沈
砂池内に設置する格子を単段にすることもできる沈砂池
機械設備を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a grit settling basin mechanical equipment which eliminates the above-mentioned conventional drawbacks and also allows a single-stage grid to be installed in the settling basin.
本発明は、除塵機の下部にスクリュウコンベヤの−剖が
貫入するように配置すると共に、原水の流入方向に対し
、このスクリュウコンベヤノ下流側に沈砂ピットを設け
た沈砂池機械設備である。The present invention is a sand settling basin mechanical equipment in which a screw conveyor is disposed so as to penetrate into the lower part of the dust remover, and a sand settling pit is provided on the downstream side of the screw conveyor with respect to the inflow direction of raw water.
以下、本発明を実施例図に基L・て説明する。Hereinafter, the present invention will be explained based on embodiment figures.
第2図は本発明の一実施例を示す断面図、第3図は第2
図のA−A断面矢視図で、第1図と共通する割分は同一
の符号を付して説明する。FIG. 2 is a sectional view showing one embodiment of the present invention, and FIG.
In the AA cross-sectional view of the figure, the same parts as those in FIG. 1 will be described with the same reference numerals.
図において、流入路2の下流に接続する沈砂池13には
、流入路2より低(・位置にスクリュウコンベヤ14を
設け、スクリュウコンベヤ14の駆動部15を沈砂池1
3の上流側に配置する。In the figure, a screw conveyor 14 is installed in the grit settling basin 13 connected to the downstream side of the inflow passage 2 at a position lower than the inflow passage 2, and the drive unit 15 of the screw conveyor 14 is connected to the settling basin 13 at a lower position than the inflow passage 2.
Placed on the upstream side of 3.
第3図において、スクリュウコンベヤ14は、谷状の傾
斜底を形成する沈砂池13の谷底部に設ける。In FIG. 3, the screw conveyor 14 is provided at the bottom of a sand settling basin 13 that forms a valley-like sloping bottom.
スクリュウコンベヤ14の下流端には沈砂ピット16を
設げ、沈砂ピット16内には揚砂ポンプ11を設ける。A sand settling pit 16 is provided at the downstream end of the screw conveyor 14, and a sand pump 11 is provided within the sand settling pit 16.
スクリュウコンベヤ14の中間部上方には、スクリュウ
コンベヤ14を跨ぎ、かつ沈砂池13の流路を横断する
如く上下方向に延びる細目格子11を設ける。Above the middle part of the screw conveyor 14, a fine grid 11 is provided which extends in the vertical direction so as to straddle the screw conveyor 14 and cross the channel of the sand settling basin 13.
細目格子17に上流面には、スフロケットホイール18
,19により回動するチェ7にレーキ20を有する除塵
機を設ける。On the upstream side of the fine grid 17, there is a sprocket wheel 18.
, 19, a dust remover having a rake 20 is provided on the check 7 which rotates by means of , 19.
このように、スクリュウコンベヤ14は、除塵機の下部
に、その一部が貫入するように配置する。In this way, the screw conveyor 14 is arranged so that a portion thereof penetrates the lower part of the dust remover.
また、沈砂池13の下流には図示しなL・が、揚水ポン
プを設ける。Further, downstream of the sand settling basin 13, a water pump (L. not shown) is provided.
次に本発明の作用につ(・て説明する。Next, the operation of the present invention will be explained.
沈砂池13は、流入路2から流入する原水の流速を緩和
して砂分を沈降さゼる。The sand settling basin 13 reduces the flow velocity of the raw water flowing in from the inlet channel 2 and settles the sand.
そして沈砂池13のV状の底面がこの沈砂をスクリュウ
コンベヤ14に誘導する6、スクリュウコンベヤ14と
格子17とが沈砂池13内を遮断して、篩渣並びに粗塵
芥が格子17の下流側に流出するのを阻止する。The V-shaped bottom of the settling tank 13 guides this settled sand to the screw conveyor 14 6. The screw conveyor 14 and the grid 17 block the inside of the settling tank 13, and the sieve residue and coarse dust are transferred to the downstream side of the grid 17. prevent it from leaking.
駆動部15により回転するスクリュウコンベヤ14は、
沈砂池13内の原水の流速がいかに小さくても、スクリ
ュウコンベヤ14の全長にわたって、強制的に沈砂を沈
砂ピット16内に搬入し、ピット16内に搬入した沈砂
は揚砂ポンプ11により沈砂池13の外削に排出する。The screw conveyor 14 rotated by the drive unit 15 is
No matter how low the flow rate of the raw water in the sand settling basin 13 is, the sand is forcibly carried into the sand settling pit 16 along the entire length of the screw conveyor 14, and the sand carried into the pit 16 is transferred to the settling basin 13 by the sand pump 11. Discharge to the outer surface of the
一方、細目格子17の下端剖とスクリュウコンベヤ14
との間に若干の間隙21を設けて、原水が流動自在にし
てち・るので、格子17の上流側と下流側との水位差を
緩和して砂の沈降を安定させる作用をする。On the other hand, the lower end of the fine grid 17 and the screw conveyor 14
A slight gap 21 is provided between the gratings 17 to allow the raw water to flow freely, thereby reducing the water level difference between the upstream and downstream sides of the grid 17 and stabilizing the sedimentation of the sand.
格子17に係止した篩渣は、格子17を掻走するレーキ
20により排除されるので、揚砂ポンプ11及び揚水ポ
ンプを保護するようになる。The sieve residue caught on the grid 17 is removed by the rake 20 that scrapes the grid 17, thereby protecting the sand pump 11 and the water pump.
そして、本発明においては、除塵機の下部スプロケット
ホイール19の下部に、沈砂を掻寄せるスクリュウコン
ベヤ14の一部が貫入してL・るので、スプロケットホ
イール19の下部に沈殿した沈砂はL・つでも掻寄せる
ことが可能になる。In the present invention, a part of the screw conveyor 14 that scrapes up the sediment penetrates into the lower part of the lower sprocket wheel 19 of the dust remover, so the sediment that has settled at the lower part of the sprocket wheel 19 is removed from the L. But it will be possible to scrape together.
このため、除塵機の下部スプロケットホイールが沈砂に
埋没することはない。Therefore, the lower sprocket wheel of the dust remover will not be buried in sediment.
以上に説明した本発明は、次の効果を有している。The present invention described above has the following effects.
(1)格子を有する除塵機の下剤スプロケットホイール
が沈砂で埋没することがない。(1) The purgative sprocket wheel of the dust remover with a grid will not be buried in sediment.
従って、除塵機が運転不能になることがなL・。Therefore, the dust remover will not become inoperable.
(2)揚砂ポンプのL流で篩渣の除去を行なうので従来
のような粗目格子を有する除塵機を不要にする。(2) Since the sieve residue is removed by the L flow of the sand pump, there is no need for a conventional dust remover with a coarse grid.
これにより、省エネルギー効果があるのみならず、砂の
沈殿作用が安定化し迅速になる効果が生じる。This not only has an energy saving effect, but also has the effect of stabilizing and speeding up the settling action of the sand.
第1凹は、従来の沈砂池機械設備を示す断(:fi図、
箒2図は本発明の一実施例を示す断面図、第3図は第2
[ZlのA−A断面図であて)。
、13:沈砂池、14:スクリュウコンベヤ、16:沈
砂ピッ[・、17:格子。The first concavity is a cross section showing the conventional sand settling basin mechanical equipment (: fi figure,
Broom Figure 2 is a cross-sectional view showing one embodiment of the present invention, and Figure 3 is a cross-sectional view showing one embodiment of the present invention.
[A cross-sectional view of Zl taken along A-A]. , 13: Sand basin, 14: Screw conveyor, 16: Sand pit [・, 17: Grid.
Claims (1)
ュウコンベヤとを備えた沈砂池において、谷状傾斜底を
形成する沈砂池13の谷底にスクリュウコンベヤ14を
設け、このスクリュウコンベヤ14の中間剤に格子17
を跨設し、スクリュウコンベヤ14の下流端に沈砂ピッ
ト16を設げたことを特徴とする沈砂池機械設備。1. In a sand settling basin equipped with a dust remover that crosses the flow path and a screw conveyor that runs along the bottom of the basin along the flow path, a screw conveyor 14 is provided at the bottom of the sand settling basin 13 that forms a valley-like sloping bottom, and this screw conveyor 14 Lattice 17 in the intermediate agent of
This sand settling basin mechanical equipment is characterized in that a sand settling pit 16 is provided at the downstream end of a screw conveyor 14.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54060686A JPS5827965B2 (en) | 1979-05-17 | 1979-05-17 | Sediment basin machinery and equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54060686A JPS5827965B2 (en) | 1979-05-17 | 1979-05-17 | Sediment basin machinery and equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55152509A JPS55152509A (en) | 1980-11-27 |
JPS5827965B2 true JPS5827965B2 (en) | 1983-06-13 |
Family
ID=13149426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54060686A Expired JPS5827965B2 (en) | 1979-05-17 | 1979-05-17 | Sediment basin machinery and equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5827965B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59187169U (en) * | 1983-05-31 | 1984-12-12 | 船井電機株式会社 | printed wiring board |
JPS63157492A (en) * | 1986-12-22 | 1988-06-30 | 株式会社東芝 | Printed wiring board |
JPH01265587A (en) * | 1988-04-15 | 1989-10-23 | Sumitomo Electric Ind Ltd | Printed wiring board |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5439310Y2 (en) * | 1974-06-07 | 1979-11-21 |
-
1979
- 1979-05-17 JP JP54060686A patent/JPS5827965B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59187169U (en) * | 1983-05-31 | 1984-12-12 | 船井電機株式会社 | printed wiring board |
JPS63157492A (en) * | 1986-12-22 | 1988-06-30 | 株式会社東芝 | Printed wiring board |
JPH01265587A (en) * | 1988-04-15 | 1989-10-23 | Sumitomo Electric Ind Ltd | Printed wiring board |
Also Published As
Publication number | Publication date |
---|---|
JPS55152509A (en) | 1980-11-27 |
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