JP2010104931A - Aeration-tube cleaning device and aeration-tube cleaning method - Google Patents

Aeration-tube cleaning device and aeration-tube cleaning method Download PDF

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JP2010104931A
JP2010104931A JP2008280619A JP2008280619A JP2010104931A JP 2010104931 A JP2010104931 A JP 2010104931A JP 2008280619 A JP2008280619 A JP 2008280619A JP 2008280619 A JP2008280619 A JP 2008280619A JP 2010104931 A JP2010104931 A JP 2010104931A
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bit
air diffuser
air
diffuser
tube
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JP5137782B2 (en
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Yoshinori Inasumi
義憲 稲住
Yasunari Nanba
康成 難波
Kenji Sakai
憲司 酒井
Kenji Nakahigashi
賢司 中東
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Toray Industries Inc
Suido Kiko Kaisha Ltd
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Toray Industries Inc
Suido Kiko Kaisha Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To eliminate sludge which adheres to the insidewall of an aeration tube of a water processor, and is dried and hardened. <P>SOLUTION: When a bit (10) installed at the leading edge of a flexible shaft (20) is inserted from a y-shaped pipe (9), is reeved through an air pipe (8) and a flexing tube (7), and is brought into an aeration tube (6) and then a motor-operated drill (30) is rotated, the bit (10) in the aeration tube (6) rotates and executes pendular movement and sludge adhered, dried, and hardened on the insidewall of the aeration tube (6) is ground and exfoliated. Thus, even when the aeration tube (6) is filled with sludge and is blocked, sludge can be suitably crushed, exfoliated, and eliminated. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、ろ過装置や攪拌装置などの水処理装置に用いる散気管清掃装置および散気管清掃方法に関し、さらに詳しくは、散気管内壁に付着し硬化した汚泥を好適に除去しうる散気管清掃装置および散気管清掃方法に関する。   The present invention relates to an air diffuser cleaning device and an air diffuser cleaning method used in a water treatment device such as a filtration device and an agitator, and more particularly, an air diffuser cleaning device that can suitably remove sludge that has adhered to and hardened the inner wall of the air diffuser. And a method for cleaning an air diffuser.

従来、水処理装置の散気管内に清掃ブラシを通し、散気管内を清掃するようにした汚水処理装置が知られている（例えば、特許文献１参照。）。
特開平１０−２７２４６７号公報（［００１１］） 2. Description of the Related Art Conventionally, a sewage treatment apparatus is known in which a cleaning brush is passed through a diffuser pipe of a water treatment apparatus to clean the inside of the diffuser pipe (see, for example, Patent Document 1).
JP-A-10-272467 ([0011])

水処理装置の散気管から気泡を放出すると、散気管から出て行く気泡と入れ替わるように原水が散気管内に入り、汚泥が散気管の内壁に付着する。この散気管の内壁に付着した汚泥は、散気管に送り込まれた空気により乾燥し、硬化する。そして、ついには汚泥が、散気管内に充満して散気管を詰まらせてしまうこともある。
しかし、上記従来の汚水装置のように清掃ブラシを通すだけでは、散気管内壁に付着し硬化した汚泥を好適に除去できない問題点があった。
そこで、本発明の目的は、水処理装置に用いる散気管内壁に付着し硬化した汚泥を好適に除去しうる水処理装置に用いる散気管清掃装置および散気管清掃方法を提供することにある。 When air bubbles are released from the air diffuser pipe of the water treatment device, the raw water enters the air diffuser pipe so as to replace the air bubbles exiting the air diffuser pipe, and sludge adheres to the inner wall of the air diffuser pipe. The sludge adhering to the inner wall of the diffuser is dried and hardened by the air sent to the diffuser. Eventually, sludge may fill the diffuser and clog the diffuser.
However, there is a problem that the sludge that adheres to the inner wall of the air diffuser and hardens cannot be removed suitably only by passing the cleaning brush as in the conventional sewage apparatus.
Then, the objective of this invention is providing the diffuser pipe cleaning apparatus and diffuser pipe cleaning method used for the water treatment apparatus which can remove suitably the sludge which adhered to the inner wall of the diffuser pipe used for a water treatment apparatus and was hardened | cured.

第１の観点では、本発明は、水処理施設の水槽内水中に気泡を放出するための散気管および前記散気管に空気を送り込むための送気管のいずれの内径よりも小さい外径を有し且つ重心が回転軸から偏心したビットと、水槽外に置かれるモータと、前記モータから前記送気管内を通り前記散気管まで挿入しうる長さを有し且つ屈曲部がある場合はその屈曲部で曲がると共に前記ビットが振子運動しうる柔軟性を有し前記モータの回転を前記ビットに伝えるフレキシブルシャフトとを具備したことを特徴とする散気管清掃装置を提供する。
上記第１の観点による散気管清掃装置では、フレキシブルシャフトの先端に取り付けたビットを送気管の水槽外の部分から送気管内に挿入し、送気管を通して散気管に至らせる。そして、モータを回すと、散気管内でビットが回転および振子運動するので、散気管内壁に付着し乾燥・硬化した汚泥を好適に除去することが出来る。また、汚泥が散気管内に充満して散気管を詰まらせてしまっている場合でも、汚泥を好適に除去することが出来る。 In a first aspect, the present invention has an outer diameter that is smaller than the inner diameter of any of an air diffuser for discharging bubbles into water in a water tank of a water treatment facility and an air diffuser for feeding air into the air diffuser. And a bit whose center of gravity is eccentric from the rotation axis, a motor placed outside the water tank, and a length that can be inserted from the motor through the air supply pipe to the air diffuser and has a bent part, the bent part. The air diffuser cleaning device is provided with a flexible shaft that bends at the same time and has a flexibility that allows the bit to perform pendulum motion and transmits the rotation of the motor to the bit.
In the air diffuser cleaning device according to the first aspect, a bit attached to the tip of the flexible shaft is inserted into the air supply pipe from a portion outside the water tank of the air supply pipe, and reaches the air diffusion pipe through the air supply pipe. Then, when the motor is rotated, the bit rotates and pendulums in the diffuser tube, so that the sludge adhered to the inner wall of the diffuser tube and dried and hardened can be suitably removed. Moreover, even when the sludge is filled in the diffuser tube and clogs the diffuser tube, the sludge can be suitably removed.

ビットの外径を送気管および散気管のいずれの内径よりも小さくしたのは、管内を通すためである。
また、ビットの重心を回転軸から偏心させたのは、管内径よりも外径が小さいビットを振子運動させて、管内壁に当たるまでビットを振るためである。 The reason why the outer diameter of the bit is made smaller than the inner diameter of either the air supply pipe or the air diffuser is to allow passage through the pipe.
Further, the reason why the center of gravity of the bit is eccentric from the rotation axis is that the bit having a smaller outer diameter than the inner diameter of the pipe is moved in a pendulum manner and shaken until it hits the inner wall of the pipe.

フレキシブルシャフトをモータから送気管内を通り散気管まで挿入しうる長さとしたのは、モータを水槽外に置くためである。
また、フレキシブルシャフトは、屈曲部がある場合はその屈曲部で曲がると共に、ビットが振子運動しうる柔軟性を有することが必要である。 The reason why the flexible shaft is long enough to be inserted from the motor through the air supply pipe to the diffuser pipe is to place the motor outside the water tank.
In addition, the flexible shaft needs to bend at the bent portion when there is a bent portion, and to be flexible so that the bit can perform a pendulum motion.

第２の観点では、本発明は、前記第１の観点による散気管清掃装置において、前記フレキシブルシャフトが、前記ビットに一端が連結されるビット連結部と、前記ビット連結部の他端に一端が連結され前記ビット連結部の柔軟性よりも低い柔軟性を有する中間部の少なくとも２段になっていることを特徴とする散気管清掃装置を提供する。
上記第２の観点による散気管清掃装置では、フレキシブルシャフトをビット連結部と中間部の少なくとも２段とし、ビット連結部の柔軟性を相対的に高くし、中間部の柔軟性を相対的に低くした。これにより、ビットは、屈曲部がある場合はその屈曲部で曲がって進み易くなると共に振子運動し易くなる。他方、中間部は、捩れを抑えて、回転を好適に伝達することが出来る。なお、中間部は、ビット連結部に先導されて屈曲部を曲がるので、屈曲部の曲がりに支障を生じない。また、ビット連結部の長さだけビットから離れるので、ビットの振子運動にも支障を生じることはない。 In a second aspect, the present invention provides the diffuser tube cleaning device according to the first aspect, wherein the flexible shaft has a bit connecting portion whose one end is connected to the bit, and one end at the other end of the bit connecting portion. An air diffuser cleaning device is provided which is connected to at least two stages of an intermediate portion having flexibility lower than that of the bit connecting portion.
In the air diffuser cleaning device according to the second aspect, the flexible shaft has at least two stages of the bit connecting portion and the intermediate portion, the flexibility of the bit connecting portion is relatively high, and the flexibility of the intermediate portion is relatively low. did. Thereby, when there exists a bending part, a bit becomes easy to bend and advance at the bending part, and it becomes easy to carry out a pendulum movement. On the other hand, the intermediate portion can transmit the rotation suitably while suppressing the twist. Since the intermediate portion is led by the bit connecting portion and bends the bent portion, there is no problem in bending of the bent portion. Further, since the bit is separated from the bit by the length of the bit connecting portion, the pendulum movement of the bit is not hindered.

第３の観点では、本発明は、水処理施設の水槽内水中に気泡を放出するための散気管および前記散気管に空気を送り込むための送気管を備えた水処理用散気装置に対して、請求項１または請求項２に記載の前記フレキシブルシャフトの先端に付けた前記ビットを水槽外から前記送気管内を通して前記散気管まで挿入し前記モータで駆動して回転および振子運動させ、散気管内壁に付着し乾燥・硬化した汚泥を前記ビットで粉砕・剥離することを特徴とする散気管清掃方法を提供する。
上記第３の観点による散気管清掃方法では、フレキシブルシャフトの先端に取り付けたビットを送気管の水槽外の部分から送気管内に挿入し、送気管を通して散気管に至らせる。そして、モータを回すと、散気管内でビットが回転および振子運動するので、散気管内壁に付着し乾燥・硬化した汚泥を好適に除去することが出来る。また、汚泥が散気管内に充満して散気管を詰まらせてしまっている場合でも、汚泥を好適に除去することが出来る。 In a third aspect, the present invention relates to an air diffuser for water treatment provided with an air diffuser for releasing bubbles into water in a water tank of a water treatment facility and an air supply pipe for sending air into the air diffuser. The bit attached to the tip of the flexible shaft according to claim 1 or 2 is inserted from the outside of the water tank into the air diffuser through the air supply tube, and is driven by the motor to rotate and pendulum, thereby the air diffuser. An air diffuser cleaning method is provided, characterized in that sludge adhering to an inner wall and dried and hardened is pulverized and peeled with the bit.
In the air diffuser cleaning method according to the third aspect, a bit attached to the tip of the flexible shaft is inserted into the air supply pipe from a portion outside the water tank of the air supply pipe, and is led to the air diffuser through the air supply pipe. Then, when the motor is rotated, the bit rotates and pendulums in the diffuser tube, so that the sludge adhered to the inner wall of the diffuser tube and dried and hardened can be suitably removed. Moreover, even when the sludge is filled in the diffuser tube and clogs the diffuser tube, the sludge can be suitably removed.

本発明の散気管清掃装置および散気管清掃方法によれば、散気管内壁に付着し乾燥・硬化した汚泥を好適に粉砕、剥離および除去することが出来る。   According to the air diffuser cleaning device and the air diffuser cleaning method of the present invention, the sludge adhering to the inner wall of the air diffuser and dried and hardened can be suitably pulverized, separated and removed.

以下、図に示す実施の形態により本発明をさらに詳細に説明する。なお、これにより本発明が限定されるものではない。   Hereinafter, the present invention will be described in more detail with reference to embodiments shown in the drawings. Note that the present invention is not limited thereby.

図１は、実施例１に係る散気管清掃装置１００の使用状態を示す斜視図である。
この散気管清掃装置１００は、ビット１０と、フレキシブルシャフト２０と、電動ドリル３０とを具備してなる。 FIG. 1 is a perspective view illustrating a usage state of the air diffuser cleaning device 100 according to the first embodiment.
The air diffuser cleaning device 100 includes a bit 10, a flexible shaft 20, and an electric drill 30.

例えば、図２に示すように、散気管清掃装置１００の使用対象となる膜ろ過装置１は、浸漬膜２と、各浸漬膜２からのろ過水を集めるための集水管３と、各浸漬膜２のろ過水出口と集水管３のろ過水入口とをそれぞれ連結するろ過水管４と、集水管３にろ過水Ｄを集めるためのポンプ５と、浸漬膜２の下方に水平方向に設置され浸漬膜２の外面を気泡で洗浄するための散気管６と、方向を９０゜変える屈曲部７と、屈曲部７により散気管６に連結され垂直方向に立ち上がり原水Ｓ外に出て原水Ｓ外から散気管６に空気を送り込むための送気管８と、空気口９ａおよびビット口９ｂを有するｙ字管９と具備している。
散気管６には、散気穴６ａが穿設されている。また、屈曲部７と反対側の散気管６の端部は下方に曲げられ且つ端面が開口６ｂになっている。 For example, as shown in FIG. 2, a membrane filtration device 1 to be used for the air diffuser cleaning device 100 includes an immersion membrane 2, a water collection tube 3 for collecting filtrate from each immersion membrane 2, and each immersion membrane. 2 is connected to the filtrate water outlet 2 and the filtrate water inlet 3 of the water collecting pipe 3, respectively, a pump 5 for collecting the filtrate D in the water collecting pipe 3, and a dipping unit installed horizontally below the immersion membrane 2. A diffuser tube 6 for washing the outer surface of the membrane 2 with bubbles, a bent portion 7 that changes the direction by 90 °, and connected to the diffuser tube 6 by the bent portion 7, rises in the vertical direction, exits from the raw water S, and comes out of the raw water S An air supply pipe 8 for sending air into the air diffusion pipe 6 and a y-shaped pipe 9 having an air port 9a and a bit port 9b are provided.
A diffuser hole 6a is formed in the diffuser tube 6. Further, the end portion of the air diffusion tube 6 on the side opposite to the bent portion 7 is bent downward and the end surface is an opening 6b.

散気管６と屈曲部７と送気管８とｙ字管９とは、別体である必要はない。例えば、屈曲部７と送気管８とを一体物としてもよい。   The air diffuser 6, the bent portion 7, the air supply tube 8, and the y-shaped tube 9 do not need to be separate bodies. For example, the bent portion 7 and the air supply tube 8 may be integrated.

ビット１０は、送気管８および散気管６と屈曲部７のいずれの内径よりも小さい外径を有している。   The bit 10 has an outer diameter smaller than the inner diameter of any of the air supply pipe 8 and the air diffusion pipe 6 and the bent portion 7.

フレキシブルシャフト２０は、電動ドリル３０からｙ字管９および送気管８内を通り屈曲部７で曲がり散気管６の端面開口６ｂから汚泥（図６のＭ）を押し出しうる長さを有し且つ屈曲部７で曲がると共にビット１０が振子運動しうる柔軟性を有している。   The flexible shaft 20 passes through the y-shaped tube 9 and the air supply tube 8 from the electric drill 30, bends at the bent portion 7, and has a length that can extrude sludge (M in FIG. 6) from the end surface opening 6 b of the air diffuser tube 6. The bit 10 is flexible so that it can be bent at the portion 7 and the pendulum can move.

図３の（ａ）はビット１０の正面図であり、（ｂ）は側面図であり、（ｃ）は背面図である。図４は、ビット１０の断面図である。
ビット１０は、ステンレス製であり、樽形の胴部１１に３枚の太刃１２と３枚の細刃１３が連続して付いている。太刃１２は細刃１３より重いため、重心は胴部１１の中心軸から偏心している。
胴部１１には、ボルト孔１４と、六角孔１５と、円孔１６が穿設されている。 3A is a front view of the bit 10, FIG. 3B is a side view, and FIG. 3C is a rear view. FIG. 4 is a cross-sectional view of the bit 10.
The bit 10 is made of stainless steel, and three barrels 12 and three thin blades 13 are continuously attached to a barrel-shaped body 11. Since the thick blade 12 is heavier than the thin blade 13, the center of gravity is eccentric from the central axis of the body portion 11.
Bolt holes 14, hexagonal holes 15, and circular holes 16 are formed in the body portion 11.

図５に示すように、フレキシブルシャフト２０の先端の六角ナット部２１を、ビット１０の六角孔１５に挿入し、ボルト２２を螺合することで、フレキシブルシャフト２０の先端にビット１０を装着する。   As shown in FIG. 5, the hexagonal nut portion 21 at the distal end of the flexible shaft 20 is inserted into the hexagonal hole 15 of the bit 10, and the bolt 22 is screwed to attach the bit 10 to the distal end of the flexible shaft 20.

図６に示すように、フレキシブルシャフト２０は、ビット１０に一端が連結されるビット連結部２０ａと、ビット連結部２０ａの他端に一端が連結される中間部２０ｂの２段になっている。中間部２０ｂの他端は、電気ドリル３０に把持される把持部２０ｃになっている。
ビット連結部２０ａは、屈曲部７で曲がると共にビット１０が振子運動しうる柔軟性を有している。中間部２０ｂは、ビット連結部２０ａの柔軟性よりも低い柔軟性を有している。 As shown in FIG. 6, the flexible shaft 20 has two stages: a bit connecting part 20a whose one end is connected to the bit 10 and an intermediate part 20b whose one end is connected to the other end of the bit connecting part 20a. The other end of the intermediate portion 20 b is a grip portion 20 c that is gripped by the electric drill 30.
The bit connecting portion 20a is flexible at the bending portion 7 and capable of pendulum movement of the bit 10. The intermediate portion 20b has a lower flexibility than the bit connection portion 20a.

図７は、散気管６の清掃状態を示す説明図である。
矢印ａのように電動モータ３０により中間部２０ｂが回転されると、矢印ｂのようにビット連結部２０ａおよびビット１０が回転すると共に、矢印ｃのようにビット１０が振子運動する。これにより、散気管６の内壁に付着し乾燥・硬化した汚泥Ｍを粉砕・剥離することが出来る。
そして、図８に示すように、散気管６の端面開口６ｂより汚泥Ｍを排出する。 FIG. 7 is an explanatory view showing a cleaning state of the air diffuser 6.
When the intermediate portion 20b is rotated by the electric motor 30 as indicated by an arrow a, the bit connecting portion 20a and the bit 10 are rotated as indicated by an arrow b, and the bit 10 is pendulum moved as indicated by an arrow c. Thereby, the sludge M which adheres to the inner wall of the air diffusing pipe 6 and is dried and hardened can be crushed and separated.
And as shown in FIG. 8, the sludge M is discharged | emitted from the end surface opening 6b of the diffuser tube 6. As shown in FIG.

本発明の散気管清掃装置および散気管清掃方法は、浄水、排水および廃水処理施設などの水処理施設で利用できる。   The air diffuser cleaning device and the air diffuser cleaning method of the present invention can be used in water treatment facilities such as purified water, waste water, and wastewater treatment facilities.

実施例１に係る散気管清掃装置を示す斜視図である。It is a perspective view which shows the diffuser tube cleaning apparatus which concerns on Example 1. FIG. 実施例１に係る散気管清掃装置および膜ろ過装置を示す斜視図である。It is a perspective view which shows the diffuser tube cleaning apparatus and membrane filtration apparatus which concern on Example 1. FIG. 実施例１に係るビットを示す正面図、側面図および背面図である。It is the front view, side view, and rear view which show the bit which concerns on Example 1. FIG. 実施例１に係るビットを示す断面図である。3 is a cross-sectional view showing a bit according to Embodiment 1. FIG. 実施例１に係るビットとフレキシブルシャフトの取付けを示す断面図である。It is sectional drawing which shows attachment of the bit which concerns on Example 1, and a flexible shaft. 実施例１に係るフレキシブルシャフトを示す側面図である。It is a side view which shows the flexible shaft which concerns on Example 1. FIG. 実施例１に係る散気管からの汚泥の排出状態を示す斜視図である。It is a perspective view which shows the discharge | emission state of the sludge from the air diffusion pipe concerning Example 1. FIG. 実施例１に係る散気管の清掃状態を示す断面図である。It is sectional drawing which shows the cleaning state of the diffuser tube which concerns on Example 1. FIG.

符号の説明Explanation of symbols

１ 膜ろ過装置
２ 浸漬膜
３ 集水管
４ ろ過水管
５ ポンプ
６ 散気管
７ 屈曲部
８ 送気管
９ ｙ字管
１００ 散気管清掃装置
Ｄ ろ過水
Ｍ 汚泥
Ｓ 原水 DESCRIPTION OF SYMBOLS 1 Membrane filtration device 2 Immersion membrane 3 Water collecting pipe 4 Filtration water pipe 5 Pump 6 Air diffuser pipe 7 Bending part 8 Air supply pipe 9 Y-shaped pipe 100 Air diffuser pipe cleaning device D Filtration water M Sludge S Raw water

Claims (3)

水処理施設の水槽内水中に気泡を放出するための散気管および前記散気管に空気を送り込むための送気管のいずれの内径よりも小さい外径を有し且つ重心が回転軸から偏心したビットと、水槽外に置かれるモータと、前記モータから前記送気管内を通り前記散気管まで挿入しうる長さを有し且つ屈曲部がある場合はその屈曲部で曲がると共に前記ビットが振子運動しうる柔軟性を有し前記モータの回転を前記ビットに伝えるフレキシブルシャフトとを具備したことを特徴とする散気管清掃装置。 A bit having an outer diameter smaller than the inner diameter of an air diffuser for releasing bubbles into the water in the water tank of the water treatment facility and an air diffuser for sending air into the air diffuser, and the center of gravity being eccentric from the rotation axis; A motor that is placed outside the water tank, and has a length that can be inserted from the motor through the air supply pipe to the diffuser pipe, and when there is a bent portion, the bent portion can be bent and the bit can perform a pendulum motion. An air diffuser cleaning device comprising a flexible shaft having flexibility and transmitting rotation of the motor to the bit. 請求項１に記載の散気管清掃装置において、前記フレキシブルシャフトが、前記ビットに一端が連結されるビット連結部と、前記ビット連結部の他端に一端が連結され前記ビット連結部の柔軟性よりも低い柔軟性を有する中間部の少なくとも２段になっていることを特徴とする散気管清掃装置。 The air diffuser cleaning device according to claim 1, wherein the flexible shaft includes a bit connecting portion whose one end is connected to the bit, and one end connected to the other end of the bit connecting portion, and the flexibility of the bit connecting portion. An air diffuser cleaning device comprising at least two stages of intermediate portions having low flexibility. 水処理施設の水槽内水中に気泡を放出するための散気管および前記散気管に空気を送り込むための送気管を備えた水処理用散気装置に対して、請求項１または請求項２に記載の前記フレキシブルシャフトの先端に付けた前記ビットを水槽外から前記送気管内を通して前記散気管まで挿入し前記モータで駆動して回転および振子運動させ、散気管内壁に付着し乾燥・硬化した汚泥を前記ビットで粉砕・剥離することを特徴とする散気管清掃方法。 3. A water treatment air diffuser comprising an air diffuser for discharging bubbles into water in a water tank of a water treatment facility and an air diffuser for feeding air into the air diffuser. The bit attached to the tip of the flexible shaft is inserted from the outside of the water tank into the air diffuser tube through the air diffuser tube and driven by the motor to rotate and pendulum, and the sludge adhered to the inner wall of the air diffuser tube is dried and hardened. An air diffuser cleaning method characterized by crushing and peeling with the bit.
JP2008280619A 2008-10-31 2008-10-31 Air diffuser cleaning device and air diffuser cleaning method Expired - Fee Related JP5137782B2 (en)

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