JP2003024716A - Turbid substance removal apparatus - Google Patents

Turbid substance removal apparatus

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Publication number
JP2003024716A
JP2003024716A JP2001219639A JP2001219639A JP2003024716A JP 2003024716 A JP2003024716 A JP 2003024716A JP 2001219639 A JP2001219639 A JP 2001219639A JP 2001219639 A JP2001219639 A JP 2001219639A JP 2003024716 A JP2003024716 A JP 2003024716A
Authority
JP
Japan
Prior art keywords
string
raw water
tower
filter medium
valve
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.)
Withdrawn
Application number
JP2001219639A
Other languages
Japanese (ja)
Inventor
Fujio Koide
富士夫 小出
Hiroyasu Ochi
浩泰 越智
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Rensui Co
Original Assignee
Nippon Rensui Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Rensui Co filed Critical Nippon Rensui Co
Priority to JP2001219639A priority Critical patent/JP2003024716A/en
Publication of JP2003024716A publication Critical patent/JP2003024716A/en
Withdrawn legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a turbid substance removal apparatus with a structure capable of efficiently collecting and discharging turbid substances by a filtration material in a pressurized state of the filtration material at the time of raw water treatment operation and in a releasing state of the pressurized state of the filtration material at the time of washing operation and which is improved so as to smoothly switch to the raw water treatment operation from the washing operation. SOLUTION: The apparatus is provided with a structure in which turbid substances can be collected and discharged by a filtration material in pressurized state of the filtration material at the time of raw water treatment operation and in the releasing state of the pressurized state of the filtration material at the time of washing operation and a raw water tank (9) and the bottom part of a tower (1) are joined to each other through a recycle pipe (54) equipped with a valve (66).

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は濁質除去装置に関す
る。 【0002】 【従来の技術】原水中の浮遊固体(濁質)の除去装置と
して、下向流形式で原水が供給され且つ上向流形式で洗
浄水が供給される濁質除去装置であって、塔内部の上下
に配置された支持体間に原水供給時には下部支持体に押
圧されて圧密状態を形成し且つ洗浄水供給時には圧密状
態を解除し得る様に濾材を収容して成る濁質除去装置が
有効である。斯かる装置によれば、原水処理運転時にお
ける濾材の圧密状態と洗浄運転時における圧密状態の解
除とにより、濾材による濁質の捕捉と排出とが効率的に
行われる。 【0003】 【発明が解決しようとする課題】本発明の目的は、原水
処理運転時における濾材の圧密状態と洗浄運転時におけ
る濾材の圧密状態の解除とにより、濾材による濁質の捕
捉と排出とが効率的に行われる構造の濁質除去装置であ
って、洗浄運転から原水処理運転への切替えが良好に行
な得る様に改良された濁質除去装置を提供することにあ
る。 【0004】 【課題を解決するための手段】すなわち、本発明の要旨
は、下向流形式で原水が供給され且つ上向流形式で洗浄
水が供給される濁質除去装置であって、塔(1)の頂部
にはバルブ付であって且つ原水タンクに連結された原水
供給配管とバルブ付の洗浄廃水排出配管とが設けられ、
塔(1)の底部にはバルブ付の処理水排出配管と洗浄水
供給配管と空気供給配管とが設けられ、塔内部には上部
支持体(2)と下部支持体(3)とが配置され、上部支
持体(2)と下部支持体(3)との間には芯紐および当
該芯紐の周側に突設された濁質捕捉材から成る複数の濾
材(4)が当該濾材の端部の上部吊り紐(7)と下部吊
り紐(8)とによって懸垂状態で固定され、濾材(4)
の芯紐ならびに上部吊り紐(7)及び下部吊り紐(8)
は流水方向に沿って屈曲変形可能に構成され、上部支持
体(2)と下部支持体(3)との間の距離(LA)、濾
材(4)の長さ(LB)、上部吊り紐(7)の長さ(L
b1)、下部吊り紐(8)の長さ(Lb2)の関係が以
下に規定する式(1)〜(3)を満足する濁質除去装置
であり、更に、原水タンクと塔(1)の底部とがバルブ
付のリサイクル配管で連結されていることを特徴とする
濾過装置に存する。 【0005】 【数2】 (Lb1+LB+Lb2)<LA (1) <LA<LB (2) (LB+Lb2)<LA<(LB+Lb1) (3) 【0006】 【発明の実施の形態】以下、本発明を添付図面に基づい
て詳細に説明する。図1は、本発明の濁質除去装置の好
ましい一例の一部を省略して示す模式的説明図である。
図1(a)は原水処理運転の説明図であり、図1(b)
は洗浄運転の説明図である。図2は、図1に示す濁質除
去装置の全体を示す模式的説明図である。 【0007】本発明の濁質除去装置は、下向流形式で原
水が供給され且つ上向流形式で洗浄水が供給される濁質
除去装置である。従って、塔(1)の頂部にはバルブ付
であって且つ原水タンクに連結された原水供給配管とバ
ルブ付の洗浄廃水排出配管とが設けられ、塔(1)の底
部にはバルブ付の処理水排出配管と洗浄水供給配管と空
気供給配管とが設けられている。図1に示す装置におい
ては、原水処理運転および洗浄運転で使用される配管は
共通しており、バルブ操作によって通水方向が変更され
る。 【0008】すなわち、原水処理運転の場合、バルブ
(61)及び(62)のみが開状態とされ、濁質を含む
原水は、バルブ(61)から配管(51)を経由して塔
(1)内に供給される。この際、濾材(4)は後述する
様に圧密状態を呈し、原水に同伴された濁質は濾材
(4)によって捕捉される。濁質を含まない処理水は、
配管(52)を経由してバルブ(62)から排出され
る。なお、配管(51)は、図2に示す様に、原水タン
ク(9)に連結され、その途中には、原水供給用のポン
プ(10)が設けられている。 【0009】一方、洗浄運転の場合、原水処理運転時に
開状態であったバルブ(61)及び(62)が閉止さ
れ、洗浄水は、バルブ(64)から配管(52)を経由
して塔(1)内に供給される。一方、空気は、バルブ
(63)から配管(53)を経由して塔(1)内に供給
される。濾材(4)は後述する様に圧密状態を解除し、
濾材(4)から濁質が除去される。空気のバブリング作
用により、濾材(4)が振動させられ、濾材(4)に付
着した濁質の剥離が促進される。濁質を含む洗浄水は、
配管(51)を経由してバルブ(65)から排出され
る。 【0010】塔内部には上部支持体(2)と下部支持体
(3)とが配置され、上部支持体(2)と下部支持体
(3)との間には複数の濾材(4)が当該濾材の端部の
上部吊り紐(7)と下部吊り紐(8)とによって懸垂状
態で固定されている。 【0011】上部支持体(2)及び下部支持体(3)の
構造は、通水を妨げず且つ吊り紐(7)及び(8)によ
って濾材(4)を固定し得る構造である限り、特に制限
されず、例えば、格子構造、目皿構造、編目構造などを
適宜採用し得る。 【0012】濾材(4)は、芯紐および当該芯紐の周側
に突設された濁質捕捉材から成る。濾材(4)の芯紐な
らびに上部吊り紐(7)及び下部吊り紐(8)は流水方
向に沿って屈曲変形可能に構成される。斯かる構成は、
素材の種類、形態、太さ等の選択によって達成される。 【0013】上記の各要素は、通常、ポリエステル、ナ
イロン、ポリ塩化ビニリデン等の合成樹脂素材にて構成
される。また、上記の各紐は、組み、撚り、編み、織
り、束ね、くけ又は裁断の各加工で得られた各種の紐の
他、十分な強度を有する限り、単糸(モノフィラメン
ト)も使用することが出来る。また、濾材(4)の濁質
捕捉材の形状は、通常フィルム小片または糸状とされ
る。濾材(4)の一例としては、撚り加工された芯紐の
周側に無数の糸状濁質捕捉材を放射状に突設した濾材が
挙げられる。斯かる濾材は、特開平8−299707号
に記載されて公知である。なお、濾材(4)の芯紐が長
く濁質捕捉材の突設範囲の両端から突出している場合
は、両端突出部の芯紐を上部吊り紐(7)及び下部吊り
紐(8)として使用することが出来る。 【0014】濁質除去装置において、上部支持体(2)
と下部支持体(3)との間の距離(LA)、濾材(4)
の長さ(LB)、上部吊り紐(7)の長さ(Lb1)、
下部吊り紐(8)の長さ(Lb2)が以下に規定する式
(1)〜(3)を満足する必要がある。 【0015】 【数3】 (Lb1+LB+Lb2)<LA (1) <LA<LB (2) (LB+Lb2)<LA<(LB+Lb1) (3) 【0016】すなわち、濁質除去装置において、式
(1)に示す様に、濾材(4)と上部支持体(2)と下
部支持体(3)の合計長さ(Lb1+LB+Lb2)
は、上部支持体(2)と下部支持体(3)との間の距離
(LA)より長い。従って、上記の各要素の何れかは塔
(1)内に弛んだ状態で存在する。 【0017】また、式(2)に示す様に、上部支持体
(2)と下部支持体(3)との間の距離(LA)は、濾
材(4)の長さ(LB)より長い。従って、上部支持体
(2)と下部支持体(3)との間には流水方向に沿って
濾材(4)が存在しない領域が形成されている。換言れ
ば、流水方向に沿って濾材(4)の可動範囲が形成され
ている。なお、図1の模式的説明図では濾材(4)同士
の間に隙間が存在しているが、実際は濾材(4)同士の
間に隙間はなく、複数の濾材(4)は密状態となる様に
懸垂され、従って、複数の濾材(4)の全体は、流水方
向(上下方向)に沿ってのみ移動する。 【0018】更に、式(3)に示す様に、濾材(4)と
上部吊り紐(7)との合計長さ(LB+Lb1)は、濾
材(4)と下部吊り紐(8)との合計長さ(LB+Lb
2)より長い。従って、下向流形式で原水が供給される
原水処理運転時においては、図1(a)に示す様に、濾
材(4)は下部支持体(3)に当接して下部吊り紐
(8)と共に塔底部近傍で圧密され、上向流形式で洗浄
水が供給される洗浄運転時においては、図1(b)に示
す様に、濾材(4)は上部支持体(2)に当接せずに下
部吊り紐(8)と共に塔内の上方に伸長した状態とな
る。 【0019】以上の結果、濁質除去装置においては、原
水処理運転時における濾材の圧密状態と洗浄運転時にお
ける濾材の圧密状態の解除とにより、濾材による濁質の
捕捉と排出とが効率的に行われる。 【0020】本発明の濁質除去装置において、前記の各
要素は、以下に規定する式(1’)〜(3’)を満足す
るのが好ましい。式(1’)〜(3’)中の各要素の大
小関係の数値は、装置の経済性を考慮して決定された値
である。 【0021】 【数4】 1.01×LA<(Lb1+LB+Lb2)<2.00×LA (1’) 1.01×LB<LA<1.50×LB (2’) 1.01(LB+Lb2)<LA<1.01(LB+Lb1) (3’) 【0022】濁質除去装置の前記した各要素の寸法は次
の通りである。すなわち、上部支持体(2)と下部支持
体(3)との間の距離(LA)は100〜400cm、
濾材(4)の長さ(LB)は70〜300cm、上部吊
り紐(7)の長さ(Lb1)は10〜250cm、下部
吊り紐(8)の長さ(Lb2)は5〜20cm、塔
(1)の直径は20〜360cmである。 【0023】更に、図2に示す様に、原水タンク(9)
と塔(1)の底部とがバルブ(66)付のリサイクル配
管(54)で連結されていることが重要である。上記の
リサイクル配管(54)は、洗浄運転から原水処理運転
への切替えの際に使用され次の様な機能を有する。 【0024】すなわち、図1(b)に示す様に、洗浄運
転時、濾材(4)は上部支持体(2)に当接せずに下部
吊り紐(8)と共に塔内の上方に伸長した状態となる。
そして、この状態で洗浄運転は終了し、原水処理運転へ
切替えられる。すなわち、バルブ(61)及び(62)
のみが開状態とされ、濁質を含む原水は、バルブ(6
1)から配管(51)を経由して塔(1)内に供給され
る。そして、濾材(4)は、通水により下方に移動して
次第に圧密状態を呈する。 【0025】ところが、原水処理運転へ切替えてから濾
材(4)が十分な圧密状態を形成するまでの間、濁質の
除去効果は低い。そこで、本発明の濁質除去装置におい
ては、原水処理運転へ切替え時に開状態とされる筈の配
管(52)のバルブ(62)を閉止状態のままとし、バ
ルブ(66)を開状態とし、リサイクル配管(54)に
より濁度の高い処理水を原水タンク(9)に戻す。その
結果、本発明の濁質除去装置においては、洗浄運転から
原水処理運転への切替えが良好に行なれ、配管(52)
からは濁質を含まない処理水のみを排出させることが出
来る。 【0026】 【発明の効果】以上説明した本発明によれば、原水処理
運転時における濾材の圧密状態と洗浄運転時における濾
材の圧密状態の解除とにより、濾材による濁質の捕捉と
排出とが効率的に行われる構造の濁質除去装置であっ
て、洗浄運転から原水処理運転への切替えが良好に行な
得る様に改良された濁質除去装置が提供される。よっ
て、本発明の工業的価値は顕著である。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turbidity removing device. 2. Description of the Related Art As a device for removing suspended solids (turbidity) in raw water, a turbidity removing device is provided in which raw water is supplied in a downward flow format and washing water is supplied in an upward flow format. A turbidity removal device that contains a filter medium so as to form a compacted state by being pressed by the lower support when supplying raw water between the supports arranged above and below inside the tower, and to release the compacted state when supplying washing water. The device is valid. According to such an apparatus, trapping and discharging of the turbid matter by the filter medium is efficiently performed by the compaction state of the filter medium during the raw water treatment operation and the release of the compaction state during the washing operation. [0003] An object of the present invention is to capture and discharge turbid matter by a filter medium by removing the compaction state of the filter medium during a raw water treatment operation and releasing the filter medium during a washing operation. It is an object of the present invention to provide a turbidity removing device having a structure in which the turbidity removing operation is efficiently performed, and an improved turbidity removing device capable of satisfactorily switching from a washing operation to a raw water treatment operation. [0004] That is, the gist of the present invention is to provide a turbidity removing apparatus in which raw water is supplied in a downward flow form and washing water is supplied in an upward flow form. At the top of (1), a raw water supply pipe with a valve and connected to a raw water tank and a washing wastewater discharge pipe with a valve are provided,
At the bottom of the tower (1), a treated water discharge pipe with a valve, a washing water supply pipe, and an air supply pipe are provided, and an upper support (2) and a lower support (3) are arranged inside the tower. Between the upper support (2) and the lower support (3), there are provided a plurality of filter media (4) comprising a core cord and a turbidity trapping material protruding from the periphery of the core cord. The filter medium (4) is fixed in a suspended state by the upper suspending string (7) and the lower suspending string (8) of the section.
Core string and upper hanging string (7) and lower hanging string (8)
Is configured to be able to bend and deform along the direction of flowing water, the distance (LA) between the upper support (2) and the lower support (3), the length (LB) of the filter medium (4), and the upper suspension string ( 7) Length (L
b1) is a turbidity removing device in which the relationship between the length (Lb2) of the lower hanging string (8) satisfies the expressions (1) to (3) defined below, and furthermore, the raw water tank and the tower (1) The filtration device is characterized in that the bottom and the bottom are connected by a recycling pipe with a valve. ## EQU2 ## (Lb1 + LB + Lb2) <LA (1) <LA <LB (2) (LB + Lb2) <LA <(LB + Lb1) (3) Embodiments of the present invention will be described below. This will be described in detail with reference to the drawings. FIG. 1 is a schematic explanatory view showing a part of a preferred example of a turbidity removing device of the present invention by omitting a part thereof.
FIG. 1A is an explanatory diagram of the raw water treatment operation, and FIG.
FIG. 4 is an explanatory diagram of a cleaning operation. FIG. 2 is a schematic explanatory view showing the entire turbidity removing device shown in FIG. [0007] The turbidity removing device of the present invention is a turbidity removing device to which raw water is supplied in a downward flow type and washing water is supplied in an upward flow type. Therefore, the top of the tower (1) is provided with a raw water supply pipe connected with a raw water tank and a cleaning wastewater discharge pipe with a valve, and the bottom of the tower (1) is provided with a valved treatment. A water discharge pipe, a washing water supply pipe, and an air supply pipe are provided. In the apparatus shown in FIG. 1, the pipes used in the raw water treatment operation and the washing operation are common, and the water flow direction is changed by operating the valve. That is, in the case of the raw water treatment operation, only the valves (61) and (62) are opened, and the raw water containing turbidity is supplied from the valve (61) to the tower (1) via the pipe (51). Supplied within. At this time, the filter medium (4) exhibits a compacted state as described later, and the suspended matter entrained in the raw water is captured by the filter medium (4). The treated water without turbidity is
It is discharged from the valve (62) via the pipe (52). The pipe (51) is connected to a raw water tank (9) as shown in FIG. 2, and a pump (10) for supplying raw water is provided in the middle thereof. On the other hand, in the case of the washing operation, the valves (61) and (62) which were open at the time of the raw water treatment operation are closed, and the washing water flows from the valve (64) via the pipe (52) to the tower (52). 1). On the other hand, air is supplied from the valve (63) into the tower (1) via the pipe (53). The filter medium (4) releases the consolidation state as described later,
The turbid matter is removed from the filter medium (4). Due to the bubbling action of the air, the filter medium (4) is vibrated, and the separation of the turbidity attached to the filter medium (4) is promoted. Wash water containing turbidity is
It is discharged from the valve (65) via the pipe (51). An upper support (2) and a lower support (3) are disposed inside the tower, and a plurality of filter media (4) are provided between the upper support (2) and the lower support (3). The filter medium is suspended and fixed by an upper suspending string (7) and a lower suspending string (8) at the end of the filter medium. The structure of the upper support (2) and the lower support (3) is not particularly limited as long as the filter medium (4) can be fixed by the suspending strings (7) and (8) without impeding water flow. Without being limited, for example, a lattice structure, a perforated structure, a stitch structure, or the like may be appropriately employed. The filter medium (4) is composed of a core string and a turbidity trapping material protruding around the core string. The core string of the filter medium (4) and the upper suspension string (7) and the lower suspension string (8) are configured to bend and deform along the flowing water direction. Such a configuration is
This is achieved by selecting the type, shape, thickness, etc. of the material. Each of the above elements is usually made of a synthetic resin material such as polyester, nylon and polyvinylidene chloride. In addition, as for each of the above-mentioned strings, besides various strings obtained by each processing of braiding, twisting, knitting, weaving, bundling, skewing, or cutting, a single yarn (monofilament) may be used as long as it has sufficient strength. Can be done. Further, the shape of the turbidity trapping material of the filter medium (4) is usually a small film piece or a thread. As an example of the filter medium (4), a filter medium in which countless thread-like turbidity trapping materials are projected radially around the twisted core string is used. Such a filter medium is described in JP-A-8-299707 and is well known. In the case where the core cord of the filter medium (4) is long and protrudes from both ends of the projecting range of the turbidity trapping material, the core cords at both ends protruding portions are used as the upper suspension string (7) and the lower suspension string (8). You can do it. In the turbidity removing device, the upper support (2)
(LA) between filter and lower support (3), filter media (4)
Length (LB), length (Lb1) of the upper hanging string (7),
The length (Lb2) of the lower suspension string (8) needs to satisfy the following equations (1) to (3). (Lb1 + LB + Lb2) <LA (1) <LA <LB (2) (LB + Lb2) <LA <(LB + Lb1) (3) That is, in the turbidity removing device, the expression (1) As shown, the total length of the filter medium (4), the upper support (2), and the lower support (3) (Lb1 + LB + Lb2)
Is longer than the distance (LA) between the upper support (2) and the lower support (3). Therefore, any of the above elements exist in the tower (1) in a relaxed state. Further, as shown in equation (2), the distance (LA) between the upper support (2) and the lower support (3) is longer than the length (LB) of the filter medium (4). Therefore, a region where the filter medium (4) does not exist is formed between the upper support (2) and the lower support (3) along the flowing water direction. In other words, the movable range of the filter medium (4) is formed along the flowing water direction. In addition, although there is a gap between the filter media (4) in the schematic explanatory view of FIG. 1, there is actually no gap between the filter media (4), and the plurality of filter media (4) are in a dense state. Therefore, the entirety of the plurality of filter media (4) moves only along the flowing water direction (vertical direction). Further, as shown in the equation (3), the total length (LB + Lb1) of the filter medium (4) and the upper suspension string (7) is the total length of the filter medium (4) and the lower suspension string (8). Sa (LB + Lb
2) longer. Therefore, during the raw water treatment operation in which the raw water is supplied in a downward flow manner, as shown in FIG. 1A, the filter medium (4) comes into contact with the lower support (3) and the lower suspension string (8). At the same time, the filter medium (4) is pressed against the upper support (2) as shown in FIG. Without being extended upward together with the lower suspension string (8) in the tower. As a result of the above, in the turbidity removing apparatus, the condensed state of the filter medium during the raw water treatment operation and the release of the condensed state of the filter medium during the washing operation can efficiently capture and discharge the turbid medium by the filter medium. Done. In the turbidity removing apparatus of the present invention, it is preferable that each of the above elements satisfies the following formulas (1 ') to (3'). The numerical values of the magnitude relations of the respective elements in the equations (1 ′) to (3 ′) are values determined in consideration of the economics of the device. 1.01 × LA <(Lb1 + LB + Lb2) <2.00 × LA (1 ′) 1.01 × LB <LA <1.50 × LB (2 ′) 1.01 (LB + Lb2) < LA <1.01 (LB + Lb1) (3 ') The dimensions of each element of the turbidity removing device are as follows. That is, the distance (LA) between the upper support (2) and the lower support (3) is 100 to 400 cm,
The length (LB) of the filter medium (4) is 70 to 300 cm, the length (Lb1) of the upper hanging string (7) is 10 to 250 cm, the length (Lb2) of the lower hanging string (8) is 5 to 20 cm, and the tower. The diameter of (1) is 20 to 360 cm. Further, as shown in FIG. 2, the raw water tank (9)
It is important that the tower (1) and the bottom of the tower (1) are connected by a recycling pipe (54) with a valve (66). The recycle pipe (54) is used when switching from the washing operation to the raw water treatment operation and has the following functions. That is, as shown in FIG. 1 (b), during the washing operation, the filter medium (4) extended upward together with the lower suspension string (8) in the column without contacting the upper support (2). State.
Then, the washing operation is completed in this state, and the operation is switched to the raw water treatment operation. That is, the valves (61) and (62)
Only the open state and the raw water containing turbidity
1) is fed into the tower (1) via a pipe (51). Then, the filter medium (4) moves downward by passing water and gradually exhibits a compacted state. However, the effect of removing turbidity is low during the period from switching to the raw water treatment operation until the filter medium (4) forms a sufficiently compact state. Therefore, in the turbidity removing device of the present invention, the valve (62) of the pipe (52), which is to be opened when switching to the raw water treatment operation, is kept closed, and the valve (66) is opened. The highly turbid treated water is returned to the raw water tank (9) by the recycling pipe (54). As a result, in the turbid removal device of the present invention, the switching from the washing operation to the raw water treatment operation can be performed satisfactorily, and the piping (52)
Can discharge only treated water containing no turbidity. According to the present invention described above, the consolidation of the filter medium during the raw water treatment operation and the release of the consolidation state of the filter medium during the washing operation allow trapping and discharging of the turbid matter by the filter medium. Provided is a turbid removing device having a structure which is efficiently performed, and which is improved so that switching from a washing operation to a raw water treatment operation can be favorably performed. Therefore, the industrial value of the present invention is remarkable.

【図面の簡単な説明】 【図1】本発明の濁質除去装置の好ましい一例の一部を
省略して示す模式的説明図 【図2】図1に示す濁質除去装置の全体を示す模式的説
明図 【符号の説明】 1:塔 2:上部支持体 3:下部支持体 4:濾材 51〜54:配管 61〜66:バルブ 7:上部吊り紐 8:下部吊り紐 9:原水タンク 10:ポンプ
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic explanatory view showing a part of a preferred example of a turbidity removing device of the present invention by omitting a part thereof. FIG. 2 is a schematic diagram showing the entire turbidity removing device shown in FIG. 1: Explanation of symbols 1: Tower 2: Upper support 3: Lower support 4: Filter media 51 to 54: Piping 61 to 66: Valve 7: Upper suspension string 8: Lower suspension string 9: Raw water tank 10: pump

─────────────────────────────────────────────────────
【手続補正書】 【提出日】平成13年8月9日(2001.8.9) 【手続補正1】 【補正対象書類名】明細書 【補正対象項目名】請求項1 【補正方法】変更 【補正内容】 【請求項1】 下向流形式で原水が供給され且つ上向流
形式で洗浄水が供給される濁質除去装置であって、塔
(1)の頂部にはバルブ付であって且つ原水タンクに連
結された原水供給配管とバルブ付の洗浄廃水排出配管と
が設けられ、塔(1)の底部にはバルブ付の処理水排出
配管と洗浄水供給配管と空気供給配管とが設けられ、塔
内部には上部支持体(2)と下部支持体(3)とが配置
され、上部支持体(2)と下部支持体(3)との間には
芯紐および当該芯紐の周側に突設された濁質捕捉材から
成る複数の濾材(4)が当該濾材の端部の上部吊り紐
(7)と下部吊り紐(8)とによって懸垂状態で固定さ
れ、濾材(4)の芯紐ならびに上部吊り紐(7)及び下
部吊り紐(8)は流水方向に沿って屈曲変形可能に構成
され、上部支持体(2)と下部支持体(3)との間の距
離(LA)、濾材(4)の長さ(LB)、上部吊り紐
(7)の長さ(Lb1)、下部吊り紐(8)の長さ(L
b2)の関係が以下に規定する式(1)〜(3)を満足
する濁質除去装置であり、更に、原水タンクと塔(1)
の底部とがバルブ付のリサイクル配管で連結されている
ことを特徴とする濾過装置。 【数1】 (Lb1+LB+Lb2)<LA (1) LA<LB (2) (LB+Lb2)<LA<(LB+Lb1) (3) 【手続補正2】 【補正対象書類名】明細書 【補正対象項目名】0005 【補正方法】変更 【補正内容】 【0005】 【数2】 (Lb1+LB+Lb2)<LA (1) LA<LB (2) (LB+Lb2)<LA<(LB+Lb1) (3) 【手続補正3】 【補正対象書類名】明細書 【補正対象項目名】0015 【補正方法】変更 【補正内容】 【0015】 【数3】 (Lb1+LB+Lb2)<LA (1) LA<LB (2) (LB+Lb2)<LA<(LB+Lb1) (3)
─────────────────────────────────────────────────────
【手続補正書】 【提出日】平成14年3月5日(2002.3.5) 【手続補正1】 【補正対象書類名】明細書 【補正対象項目名】請求項1 【補正方法】変更 【補正内容】 【請求項1】 下向流形式で原水が供給され且つ上向流
形式で洗浄水が供給される濁質除去装置であって、塔
(1)の頂部にはバルブ付であって且つ原水タンクに連
結された原水供給配管とバルブ付の洗浄廃水排出配管と
が設けられ、塔(1)の底部にはバルブ付の処理水排出
配管と洗浄水供給配管と空気供給配管とが設けられ、塔
内部には上部支持体(2)と下部支持体(3)とが配置
され、上部支持体(2)と下部支持体(3)との間には
芯紐および当該芯紐の周側に突設された濁質捕捉材から
成る複数の濾材(4)が当該濾材の端部の上部吊り紐
(7)と下部吊り紐(8)とによって懸垂状態で固定さ
れ、濾材(4)の芯紐ならびに上部吊り紐(7)及び下
部吊り紐(8)は流水方向に沿って屈曲変形可能に構成
され、上部支持体(2)と下部支持体(3)との間の距
離(LA)、濾材(4)の長さ(LB)、上部吊り紐
(7)の長さ(Lb1)、下部吊り紐(8)の長さ(L
b2)の関係が以下に規定する式(1)〜(3)を満足
する濁質除去装置であり、更に、原水タンクと塔(1)
の底部とがバルブ付のリサイクル配管で連結されている
ことを特徴とする濾過装置。 【数1】LA<(Lb1+LB+Lb2) (1)LB<LA (2) (LB+Lb2)<LA<(LB+Lb1) (3) 【手続補正2】 【補正対象書類名】明細書 【補正対象項目名】0005 【補正方法】変更 【補正内容】 【0005】 【数2】LA<(Lb1+LB+Lb2) (1)LB<LA (2) (LB+Lb2)<LA<(LB+Lb1) (3) 【手続補正3】 【補正対象書類名】明細書 【補正対象項目名】0015 【補正方法】変更 【補正内容】 【0015】 【数3】LA<(Lb1+LB+Lb2) (1)LB<LA (2) (LB+Lb2)<LA<(LB+Lb1) (3) 【手続補正4】 【補正対象書類名】明細書 【補正対象項目名】0021 【補正方法】変更 【補正内容】 【0021】 【数4】 1.01×LA<(Lb1+LB+Lb2)<2.00×LA (1’) 1.01×LB<LA<1.50×LB (2’) 1.01×(LB+Lb2)<LA<1.01×(LB+Lb1) (3’)
────────────────────────────────────────────────── ───
[Procedure amendment] [Date of submission] August 9, 2001 (2001.8.9) [Procedure amendment 1] [Document name to be amended] Description [Item name to be amended] Claim 1 [Amendment method] Change [Claim 1] This is a turbidity removing device in which raw water is supplied in a downward flow format and washing water is supplied in an upward flow format, and a valve is provided at the top of the tower (1). A raw water supply pipe connected to the raw water tank and a cleaning wastewater discharge pipe with a valve are provided, and a treated water discharge pipe with a valve, a cleaning water supply pipe, and an air supply pipe are provided at the bottom of the tower (1). An upper support (2) and a lower support (3) are disposed inside the tower, and a core string and the core string are provided between the upper support (2) and the lower support (3). A plurality of filter media (4) made of a turbidity trapping material projecting from the peripheral side are provided with an upper suspending string (7) at an end of the filter media and a lower suspender. The string is fixed in a suspended state by the string (8), and the core string of the filter medium (4) and the upper suspension string (7) and the lower suspension string (8) are configured to be bent and deformable in the flowing water direction, and the upper support ( 2) Distance between the lower support (3) (LA), length of filter medium (4) (LB), length of upper suspension string (7) (Lb1), length of lower suspension string (8) Sa (L
b2) is a turbidity removing device that satisfies the following formulas (1) to (3), and further comprises a raw water tank and a tower (1).
Characterized in that the bottom of the filter is connected to a recycling pipe with a valve. (Lb1 + LB + Lb2) <LA (1) LA <LB (2) (LB + Lb2) <LA <(LB + Lb1) (3) [Procedure amendment 2] [Document name to be amended] Description [Item name to be amended] 0005 [Correction method] Change [Correction content] (Lb1 + LB + Lb2) <LA (1) LA <LB (2) (LB + Lb2) <LA <(LB + Lb1) (3) [Procedure correction 3] [Correction target] [Document name] Specification [Correction target item name] 0015 [Correction method] Change [Correction contents] (Lb1 + LB + Lb2) <LA (1) LA <LB (2) (LB + Lb2) <LA <(LB + Lb1) (3)
────────────────────────────────────────────────── ───
[Procedural amendment] [Date of submission] March 5, 2002 (2002.3.5) [Procedure amendment 1] [Document name to be amended] Description [Item name to be amended] Claim 1 [Correction method] Change [Claim 1] This is a turbidity removing device in which raw water is supplied in a downward flow format and washing water is supplied in an upward flow format, and a valve is provided at the top of the tower (1). A raw water supply pipe connected to the raw water tank and a cleaning wastewater discharge pipe with a valve are provided, and a treated water discharge pipe with a valve, a cleaning water supply pipe, and an air supply pipe are provided at the bottom of the tower (1). An upper support (2) and a lower support (3) are disposed inside the tower, and a core string and the core string are provided between the upper support (2) and the lower support (3). A plurality of filter media (4) made of a turbidity trapping material projecting from the peripheral side are provided with an upper suspending string (7) at an end of the filter media and a lower suspender. The string is fixed in a suspended state by the string (8), and the core string of the filter medium (4) and the upper suspension string (7) and the lower suspension string (8) are configured to be bent and deformable in the flowing water direction, and the upper support ( 2) Distance between the lower support (3) (LA), length of filter medium (4) (LB), length of upper suspension string (7) (Lb1), length of lower suspension string (8) Sa (L
b2) is a turbidity removing device that satisfies the following formulas (1) to (3), and further comprises a raw water tank and a tower (1).
Characterized in that the bottom of the filter is connected to a recycling pipe with a valve. LA <(Lb1 + LB + Lb2) (1) LB <LA (2) (LB + Lb2) <LA <(LB + Lb1) (3) [Procedure amendment 2] [Document name to be amended] Description [Item name to be amended] 0005 [Correction method] Change [Correction contents] LA <(Lb1 + LB + Lb2) (1) LB <LA (2) (LB + Lb2) <LA <(LB + Lb1) (3) [Procedure correction 3] [Correction target] Document name] Description [Correction target item name] 0015 [Correction method] Change [Correction contents] LA <(Lb1 + LB + Lb2) (1) LB <LA (2) (LB + Lb2) <LA <(LB + Lb1) (3) [Procedure amendment 4] [Document name to be amended] Description [Item name to be amended] 0021 [Amendment method] Change [Content of amendment] [Equation 4] 1.0 1 × LA <(Lb1 + LB + Lb2) <2.00 × LA (1 ′) 1.01 × LB <LA <1.50 × LB (2 ′) 1.01 × (LB + Lb2) <LA <1.01 × (LB + Lb1 ) (3 ')

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) B01D 29/38 510B 520C 580A 580C ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) B01D 29/38 510B 520C 580A 580C

Claims (1)

【特許請求の範囲】 【請求項1】 下向流形式で原水が供給され且つ上向流
形式で洗浄水が供給される濁質除去装置であって、塔
(1)の頂部にはバルブ付であって且つ原水タンクに連
結された原水供給配管とバルブ付の洗浄廃水排出配管と
が設けられ、塔(1)の底部にはバルブ付の処理水排出
配管と洗浄水供給配管と空気供給配管とが設けられ、塔
内部には上部支持体(2)と下部支持体(3)とが配置
され、上部支持体(2)と下部支持体(3)との間には
芯紐および当該芯紐の周側に突設された濁質捕捉材から
成る複数の濾材(4)が当該濾材の端部の上部吊り紐
(7)と下部吊り紐(8)とによって懸垂状態で固定さ
れ、濾材(4)の芯紐ならびに上部吊り紐(7)及び下
部吊り紐(8)は流水方向に沿って屈曲変形可能に構成
され、上部支持体(2)と下部支持体(3)との間の距
離(LA)、濾材(4)の長さ(LB)、上部吊り紐
(7)の長さ(Lb1)、下部吊り紐(8)の長さ(L
b2)の関係が以下に規定する式(1)〜(3)を満足
する濁質除去装置であり、更に、原水タンクと塔(1)
の底部とがバルブ付のリサイクル配管で連結されている
ことを特徴とする濾過装置。 【数1】 (Lb1+LB+Lb2)<LA (1) <LA<LB (2) (LB+Lb2)<LA<(LB+Lb1) (3)
Claims 1. A turbidity removing apparatus to which raw water is supplied in a downward flow form and washing water is supplied in an upward flow form, wherein a valve is provided at the top of the tower (1). And a raw water supply pipe connected to the raw water tank and a cleaning wastewater discharge pipe with a valve are provided, and a treated water discharge pipe with a valve, a cleaning water supply pipe, and an air supply pipe are provided at the bottom of the tower (1). And an upper support (2) and a lower support (3) are arranged inside the tower, and a core cord and the core are provided between the upper support (2) and the lower support (3). A plurality of filter media (4) made of a turbidity trapping material protruding from a peripheral side of the string are fixed in a suspended state by an upper suspending string (7) and a lower suspending string (8) at the ends of the filter medium. The core string of (4) and the upper hanging string (7) and the lower hanging string (8) are configured to be bent and deformed along the flowing water direction. The distance (LA) between the upper support (2) and the lower support (3), the length (LB) of the filter medium (4), the length (Lb1) of the upper suspension string (7), and the lower suspension string (8) Length (L
b2) is a turbidity removing device that satisfies the following formulas (1) to (3), and further comprises a raw water tank and a tower (1).
Characterized in that the bottom of the filter is connected to a recycling pipe with a valve. (Lb1 + LB + Lb2) <LA (1) <LA <LB (2) (LB + Lb2) <LA <(LB + Lb1) (3)
JP2001219639A 2001-07-19 2001-07-19 Turbid substance removal apparatus Withdrawn JP2003024716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
JP2003024716A true JP2003024716A (en) 2003-01-28

Family

ID=19053606

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Application Number Title Priority Date Filing Date
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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005144399A (en) * 2003-11-19 2005-06-09 Kurita Water Ind Ltd Filter washing method, filtration treatment method and filtration apparatus
JP2013000653A (en) * 2011-06-16 2013-01-07 Tohkemy Corp Filter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005144399A (en) * 2003-11-19 2005-06-09 Kurita Water Ind Ltd Filter washing method, filtration treatment method and filtration apparatus
JP4529117B2 (en) * 2003-11-19 2010-08-25 栗田工業株式会社 Filtration method
JP2013000653A (en) * 2011-06-16 2013-01-07 Tohkemy Corp Filter

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