JPH0416203B2 - - Google Patents
Info
- Publication number
- JPH0416203B2 JPH0416203B2 JP12580787A JP12580787A JPH0416203B2 JP H0416203 B2 JPH0416203 B2 JP H0416203B2 JP 12580787 A JP12580787 A JP 12580787A JP 12580787 A JP12580787 A JP 12580787A JP H0416203 B2 JPH0416203 B2 JP H0416203B2
- Authority
- JP
- Japan
- Prior art keywords
- material layer
- water
- tank
- sponge material
- gas
- 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
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 59
- 239000000463 material Substances 0.000 claims description 52
- 238000004140 cleaning Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 4
- 239000011538 cleaning material Substances 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 238000005273 aeration Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、上・下水、用水、産業廃水、水族館
等の水などに含有される濁質分を分離除去し、清
澄化する材の洗浄方法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is used for cleaning materials for separating and removing turbidity contained in water, sewage, industrial water, industrial wastewater, water from aquariums, etc., and clarifying the water. It is about the method.
高濁度原水に対応できる清澄過として、スポ
ンジを材層とした過装置が採用されるように
なつてきた。
As a clarifier that can handle highly turbid raw water, filtration devices with a sponge material layer have come to be used.
従来、この種の過装置におけるスポンジ材
層の洗浄は、外部から供給された洗浄水及び空気
を単独あるいは同時に流してスポンジ材に捕捉
されている濁質分を洗い流し、系外に排出してい
る。しかしながら、スポンジのような網目構造の
柔弾性体では、濁質分は内部にまで捕捉されるこ
とになり、このような洗浄操作によつては内部ま
でを完全に洗い出すことは困難であつた。 Conventionally, to clean the sponge material layer in this type of filtration equipment, cleaning water and air supplied from the outside are flushed out either singly or simultaneously to wash away the suspended matter trapped in the sponge material and discharged to the outside of the system. . However, in a soft elastic body with a mesh structure like a sponge, suspended matter is trapped inside, and it is difficult to completely wash out the inside by such a cleaning operation.
また、スポンジの弾性を利用して、スポンジを
機械的手段で圧縮し、スポンジ内部の濁質分を絞
り出す方法も併用されていた。この方法の利点
は、比較的短時間で洗浄できることであるが、ス
ポンジの圧縮手段が構造的に複雑であり、必ずし
も濁質分の絞り出しが効果的に行われるとは限ら
ず、また絞り出された濁質分の系外への排出もス
ムーズに行われないこともあつた。 In addition, a method was also used in which the sponge's elasticity was used to compress the sponge using mechanical means to squeeze out the suspended matter inside the sponge. The advantage of this method is that it can be cleaned in a relatively short time, but the compression means of the sponge is structurally complex, and the turbidity is not necessarily squeezed out effectively. In some cases, suspended solids could not be smoothly discharged from the system.
本発明は、スポンジ材の圧縮と、絞り出され
た濁質分の系外への排出を簡単かつ効果的にし、
スポンジ材の圧縮洗浄における問題点を解決し
ようとするものである。 The present invention makes compressing the sponge material and discharging the squeezed suspended matter out of the system simple and effective.
This is an attempt to solve problems in compression cleaning of sponge materials.
本発明は、密閉槽内に形成したスポンジ材層
を洗浄するに際し、槽内に水を保持させたまま圧
力気体を導入して槽内水を加圧したのち、前記
材層の原水流入側を急開することによつて生ずる
減圧作用により前記材層の過水流出側から原
水流入側へ向う高流速の気液混合流を生起させ、
前記材層に捕捉された濁質分を絞り出し、槽外
に排出させることを特徴とする材の洗浄方法で
ある。
In the present invention, when cleaning a sponge material layer formed in a sealed tank, pressurized gas is introduced into the tank while water is retained in the tank to pressurize the water in the tank, and then the raw water inflow side of the material layer is cleaned. Due to the decompression effect caused by the sudden opening, a gas-liquid mixed flow is generated at a high velocity from the excess water outflow side of the material layer to the raw water inflow side,
This is a material cleaning method characterized by squeezing out suspended matter trapped in the material layer and discharging it outside the tank.
密閉槽内に形成したスポンジ材層を利用して
水中の濁質分を除去する過を長時間継続する
と、抗が増大したり、場合によつては過水中
に濁質分がリークしはじめるから、スポンジ材
層の洗浄を行う。
If the sponge material layer formed in the sealed tank is used to remove suspended matter from the water for a long period of time, the resistance will increase, and in some cases, the suspended matter will begin to leak into the overwater. , clean the sponge material layer.
スポンジ材層の洗浄に際しては、まず槽内に
水を保持させたまま圧力気体を導入して槽内水を
加圧する。次いでスポンジ材層の原水流入側を
一気に急開すると、槽内の水は急激に減圧され、
気液混合の高速流の水流が生じてスポンジ材層
の過水流出側から原水流入側へ流れ、スポンジ
材層を圧縮して捕捉されている濁質分を絞り出
し、絞り出した濁質分を的確に系外に洗い流す。 When cleaning the sponge material layer, first, pressurized gas is introduced to pressurize the water in the tank while water is retained in the tank. Next, when the raw water inlet side of the sponge material layer is suddenly opened, the water in the tank is rapidly depressurized.
A high-speed water flow of gas-liquid mixture is generated and flows from the excess water outflow side of the sponge material layer to the raw water inflow side, compressing the sponge material layer and squeezing out the captured turbidity, and accurately squeezing out the turbidity. Rinse out of the system.
なお、このような洗浄作用において、槽内に保
持されたスポンジ材層の過水流出側の水量を
スポンジ材層の容積以上とし、この水量を高流
速の気液混合流としてスポンジ材層に流過させ
ることが好ましい。この洗浄操作は１回だけでな
く、数回繰り返すことによつてスポンジ材層内
の濁質分の絞り出し効果を高めることができる。 In addition, in such a cleaning action, the amount of water on the outflow side of the sponge material layer held in the tank is set to be equal to or greater than the volume of the sponge material layer, and this amount of water is flowed into the sponge material layer as a gas-liquid mixed flow at a high flow rate. It is preferable to let it pass. By repeating this washing operation not only once but several times, the effect of squeezing out the suspended matter in the sponge material layer can be enhanced.
また、減圧作用により生起するスポンジ材層
の過水流出側の気液混合流中に圧力気体を供
給、分散させて気泡を発生させれば、スポンジ
材の絞り出し効果と濁質分の除去効果を更に高め
ることができる。 In addition, if pressure gas is supplied and dispersed in the gas-liquid mixed flow on the overwater outflow side of the sponge material layer, which is generated by the decompression action, to generate air bubbles, the effect of squeezing out the sponge material and removing turbidity can be achieved. It can be further increased.
本発明の一実施例を第１図を参照しながら説明
すれば、密閉槽１内にはスポンジ材層２が上部
多孔支持体３と下部多孔支持体４との間に支持さ
れ、その過水流出側には空間１′が区画形成さ
れている。
An embodiment of the present invention will be described with reference to FIG. 1. A sponge material layer 2 is supported in a closed tank 1 between an upper porous support 3 and a lower porous support 4, A space 1' is defined on the outflow side.
スポンジ材層２の原水流入側（図示例では下
側）には原水流入弁５を設けた原水流入管６を開
口し、過水流出側の空間１′には過水流出弁
７を設けた過水流出管８を開口してあり、さら
に原水流入管６には開閉自在の急開弁９を設けた
洗浄排水管１０を連結し、過水流出側の空間
１′には圧力気体流入弁１１を設けた圧力気体流
入管１２を開口してある。 A raw water inflow pipe 6 equipped with a raw water inflow valve 5 was opened on the raw water inflow side (lower side in the illustrated example) of the sponge material layer 2, and a superfluous water outflow valve 7 was provided in the space 1' on the superfluous water outflow side. A superfluous water outflow pipe 8 is opened, and a cleaning drain pipe 10 equipped with a quick-opening valve 9 that can be opened and closed is connected to the raw water inflow pipe 6, and a pressure gas inflow valve is provided in the space 1' on the superfluous water outflow side. A pressure gas inlet pipe 12 provided with a pressure gas inlet 11 is opened.
また、圧力気体流入管１２の圧力気体流入弁１
１より上流側に散気弁１３を設けた散気気体流入
管１４を分岐し、この散気気体流入管１４をスポ
ンジ材層２の過水流出側に配備された散気管
１５に連結することも好ましい態様である。 Moreover, the pressure gas inflow valve 1 of the pressure gas inflow pipe 12
A diffuser gas inflow pipe 14 provided with a diffuser valve 13 on the upstream side of the sponge material layer 2 is branched, and this diffuser gas inflow pipe 14 is connected to a diffuser pipe 15 provided on the overwater outflow side of the sponge material layer 2. This is also a preferred embodiment.
しかして過時には、原水流入弁５および過
水流出弁７を開き、急開弁９、圧力気体流入弁１
１および散気弁１３を閉じて運転すると、原水は
原水流入弁５を経て原水流入管６から密閉槽１内
に流入し、下部多孔支持体４によつて均等分配さ
れながらスポンジ材層２を流過して過され、
上部多孔支持体３で集水され、過水として空間
１′を経て過水流出管８から過水流出弁７を
経て系外へ流出する。 However, when the overflow occurs, the raw water inflow valve 5 and the excess water outflow valve 7 are opened, and the quick opening valve 9 and the pressure gas inflow valve 1 are opened.
1 and the aeration valve 13 are closed, raw water flows into the sealed tank 1 from the raw water inlet pipe 6 via the raw water inlet valve 5, and is evenly distributed by the lower porous support 4 while spreading over the sponge material layer 2. passed away,
The water is collected by the upper porous support 3 and flows out of the system as excess water through the space 1' from the excess water outlet pipe 8 and the excess water outlet valve 7.
このような過を長時間継続すると、抗が増
大したり、場合によつては過水中に濁質分がリ
ークしはじめるから、スポンジ材層２の洗浄を
行う。 If such filtration is continued for a long period of time, the resistance will increase, and in some cases, suspended matter will begin to leak into the filtrated water, so the sponge material layer 2 is cleaned.
スポンジ材層２の洗浄に際しては、原水流入
弁５および過水流出弁７を閉じて槽内に水を保
持させたまま、圧力気体流入弁１１を開いて圧力
気体流入管１２から圧力気体を槽内に導入し、槽
内の水を加圧する。次いで急開弁９を急激に開く
と、槽内が急減圧されて槽内の加圧された水は体
積の膨張した気泡をもつた気液混合流となり、空
間１′からの気液混合流はスポンジ材層２を高
流速で急激に流過し、スポンジ材層２を圧縮し
て捕捉されている濁質分を絞り出し、洗浄排水管
１０から急開弁９を経て系外に排出する。 When cleaning the sponge material layer 2, the raw water inflow valve 5 and excess water outflow valve 7 are closed to retain water in the tank, and the pressure gas inflow valve 11 is opened to supply pressure gas from the pressure gas inflow pipe 12 to the tank. into the tank and pressurize the water in the tank. Next, when the quick-opening valve 9 is suddenly opened, the pressure inside the tank is suddenly reduced, and the pressurized water in the tank becomes a gas-liquid mixed flow with bubbles whose volume has expanded, and the gas-liquid mixed flow from the space 1' The water rapidly flows through the sponge material layer 2 at a high flow rate, compresses the sponge material layer 2, squeezes out the captured suspended matter, and discharges it from the cleaning drain pipe 10 through the quick-opening valve 9 to the outside of the system.
また、急開弁９を開くと同時に散気弁１３を開
き、圧力気体を散気気体流入管１４、散気管１５
を介して供給、分散させると、空間１′の気液混
合流は更に高流速となつてスポンジ材層２を流
過することになり、スポンジ材層２は更に圧縮
されて洗浄効果が促進される。 Also, at the same time as opening the quick-open valve 9, the aeration valve 13 is opened, and the pressure gas is transferred to the aeration gas inflow pipe 14 and the aeration pipe 15.
When the gas-liquid mixed flow in the space 1' is supplied and dispersed through the sponge material layer 2, the flow velocity of the gas-liquid mixture in the space 1' becomes higher and passes through the sponge material layer 2, which is further compressed and the cleaning effect is promoted. Ru.
上述した洗浄操作における気液混合流を高流速
とするために槽内で加圧される加圧水の圧力を
0.5Kgｆ／cm2以上とする。しかし、５Kgｆ／cm2以
上にすることは槽の耐圧性からみて好ましくな
く、加圧水の圧力は0.5〜５Kgｆ／cm2の範囲にす
ると良い。 The pressure of the pressurized water that is pressurized in the tank to achieve a high flow rate of the gas-liquid mixed flow in the above-mentioned cleaning operation is
0.5Kgf/ cm2 or more. However, it is not preferable to increase the pressure to 5 Kgf/cm 2 or more from the viewpoint of pressure resistance of the tank, and it is preferable to set the pressure of the pressurized water in the range of 0.5 to 5 Kgf/cm 2 .
更に、スポンジ材層２を流過し洗浄するに必
要な水量は、スポンジ材層２の容積に等しい水
量であれば通常は十分であるが、スポンジ材層
２の容積の２〜３倍、もしくはそれ以上の量であ
ることが好ましい。そのために、過水流出側の
空間１′の容積又はスポンジ材層２上部から
過水流出弁７に至るまでの容積を、スポンジ材
層２の容積以上、好ましくは２〜３倍とする。第
１図示例ではこの容積のほとんどを空間１′にも
たせてあるが、第２図に示すように密閉槽１から
過水流出弁７に至る過水流出管８中に貯留タ
ンク１６を介在させて過水を保有させれば、密
閉槽１の高さを低くすることができる。 Furthermore, the amount of water required to flow through and wash the sponge material layer 2 is usually sufficient if the amount of water is equal to the volume of the sponge material layer 2; It is preferable that the amount is greater than that. For this purpose, the volume of the space 1' on the excess water outflow side or the volume from the upper part of the sponge material layer 2 to the excess water outflow valve 7 is made larger than the volume of the sponge material layer 2, preferably 2 to 3 times. In the first illustrated example, most of this volume is provided in the space 1', but as shown in FIG. By storing excess water, the height of the closed tank 1 can be lowered.
また、上述した洗浄操作における高流速の気液
混合流の発生を、数回例えば２〜３回繰り返して
行えば、スポンジ材層２内の濁質分の絞り出し
効果を高めることができる。 Further, by repeating the generation of a high-velocity gas-liquid mixed flow in the above-mentioned cleaning operation several times, for example, two to three times, the effect of squeezing out the suspended matter in the sponge material layer 2 can be enhanced.
上述した実施例では、過方向が上向流である
が、これとは反対に過方向が下向流であつても
上記洗浄操作を適用することができ、その場合の
弁、配管は上下反対となり、スポンジ材層２の
下部に所要の容積を保有すればよい。 In the above embodiment, the flow direction is upward flow, but the above cleaning operation can be applied even if the flow direction is downward flow, in which case the valves and piping are upside down. Therefore, it is sufficient to have a required volume in the lower part of the sponge material layer 2.
以上述べたように本発明によれば、洗浄時にお
けるスポンジ材の圧縮による濁質分の絞り出し
と、絞り出された濁質分の系外への排出を極めて
簡単かつ効果的にし、スポンジ材の過機能の
回復を速やかにかつ確実に行うことができ、しか
も外部から洗浄水を供給する必要がないという極
めて有益な効果を奏するものである。
As described above, according to the present invention, squeezing out the suspended matter by compressing the sponge material during cleaning and discharging the squeezed out suspended matter out of the system is made extremely simple and effective, and the sponge material is This has extremely beneficial effects in that overfunction can be recovered quickly and reliably, and there is no need to supply washing water from the outside.
第１図は本発明の一実施例を示す系統説明図
で、第２図は本発明の他の実施例を示す系統説明
図である。
１…密閉層、１′…空間、２…スポンジ材層、
３…上部多孔支持体、４…下部多孔支持体、５…
原水流入弁、６…原水流入管、７…過水流出
弁、８…過水流出管、９…急開弁、１０…洗浄
排水管、１１…圧力気体流入弁、１２…圧力気体
流入管、１３…散気弁、１４…散気気体流入管、
１５…散気管、１６…貯留タンク。
FIG. 1 is a system explanatory diagram showing one embodiment of the present invention, and FIG. 2 is a system explanatory diagram showing another embodiment of the present invention. 1... Sealing layer, 1'... Space, 2... Sponge material layer,
3... Upper porous support, 4... Lower porous support, 5...
Raw water inflow valve, 6... Raw water inflow pipe, 7... Overwater outflow valve, 8... Overwater outflow pipe, 9... Rapid opening valve, 10... Washing drain pipe, 11... Pressure gas inflow valve, 12... Pressure gas inflow pipe, 13... Diffusion valve, 14... Diffusion gas inflow pipe,
15...Air diffuser pipe, 16...Storage tank.
Claims (1)
るに際し、槽内に水を保持させたまま圧力気体を
導入して槽内水を加圧したのち、前記材層の原
水流入側を急開することによつて生ずる減圧作用
により前記材層の過水流出側から原水流入側
へ向う高流速の気液混合流を生起させ、前記材
層に捕促された濁質分を絞り出し、槽外に排出さ
せることを特徴とする材の洗浄方法。 ２ 前記槽内に保持させた水の前記材層の過
水流出側の水量を、前記材層の容積以上とする
特許請求の範囲第１項記載の材の洗浄方法。 ３ 前記高流速の気液混合流の生起を数回繰り返
して行う特許請求の範囲第１項又は第２項記載の
材の洗浄方法。 ４ 前記材層の過水流出側に生起する気液混
合流中に前記圧力気体を分散させる特許請求の範
囲第１〜３項のいずれか一つの項記載の材の洗
浄方法。[Claims] 1. When cleaning a sponge material layer formed in a sealed tank, pressurized gas is introduced while water is retained in the tank to pressurize the water in the tank, and then the raw water of the material layer is Due to the depressurizing effect caused by rapidly opening the inflow side, a high velocity gas-liquid mixed flow is generated from the overwater outflow side of the material layer to the raw water inflow side, and the suspended matter trapped in the material layer is A method for cleaning materials that is characterized by squeezing out the material and discharging it outside the tank. 2. The material cleaning method according to claim 1, wherein the amount of water held in the tank on the outflow side of the material layer is greater than or equal to the volume of the material layer. 3. The method for cleaning materials according to claim 1 or 2, wherein the generation of the high-velocity gas-liquid mixed flow is repeated several times. 4. The material cleaning method according to any one of claims 1 to 3, wherein the pressure gas is dispersed in a gas-liquid mixed flow generated on the overwater outflow side of the material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12580787A JPS63291613A (en) | 1987-05-25 | 1987-05-25 | Method for washing filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12580787A JPS63291613A (en) | 1987-05-25 | 1987-05-25 | Method for washing filter material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63291613A JPS63291613A (en) | 1988-11-29 |
| JPH0416203B2 true JPH0416203B2 (en) | 1992-03-23 |
Family
ID=14919399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12580787A Granted JPS63291613A (en) | 1987-05-25 | 1987-05-25 | Method for washing filter material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63291613A (en) |
-
1987
- 1987-05-25 JP JP12580787A patent/JPS63291613A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63291613A (en) | 1988-11-29 |
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