JP2006061820A - Filter cloth structure for removing sludge cake of filter press - Google Patents
Filter cloth structure for removing sludge cake of filter press Download PDFInfo
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- JP2006061820A JP2006061820A JP2004247144A JP2004247144A JP2006061820A JP 2006061820 A JP2006061820 A JP 2006061820A JP 2004247144 A JP2004247144 A JP 2004247144A JP 2004247144 A JP2004247144 A JP 2004247144A JP 2006061820 A JP2006061820 A JP 2006061820A
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Description
本発明は、下水処理装置または工場廃液等を含む工業用排水の処理装置から排出されるスラリー(汚泥ケーキ)を脱水処理する圧搾式フィルタプレスの汚泥ケーキ除去用濾布構造に関するものであり、特に、汚泥ケーキを迅速かつ確実に濾布から剥離させる圧搾式フィルタプレスの汚泥ケーキ除去用濾布構造に関するものである。 The present invention relates to a filter cloth structure for removing sludge cake of a squeeze filter press that dehydrates slurry (sludge cake) discharged from a wastewater treatment device or industrial wastewater treatment device containing factory waste liquid, etc. The present invention relates to a filter cloth structure for removing a sludge cake of a squeeze filter press that quickly and reliably peels a sludge cake from a filter cloth.
従来、圧搾式フィルタプレスは、濾過・圧搾工程の終了後、相互に隣り合う濾板間に固着する濾室内のケーキ(汚泥ケーキ)を除去するため、濾板が1枚ずつ所定の距離をあけて配置されており、濾室内のケーキは開板と同時に自重により落下し、濾布に付着したケーキは、濾布振動装置により除去されていた。 Conventionally, a compression filter press removes a cake (sludge cake) in a filter chamber that is fixed between adjacent filter plates after the filtration and pressing process, so that the filter plates are separated by a predetermined distance one by one. The cake in the filter chamber dropped by its own weight simultaneously with the opening of the plate, and the cake adhering to the filter cloth was removed by the filter cloth vibration device.
上記の圧搾式フィルタプレスの各濾板両濾過面を被覆する濾布の上端部には、濾布吊り下げ棒が取り付けられ、該濾布吊り下げ棒の左右両端部が、開板距離よりも短いチェーン等の連結部材により連結されており、開板の際、対向する濾布の上端部が内側に引き寄せられ、側面ハの字形に傾斜せしめられ、該濾布吊り下げ棒が上方向から振動装置の振動ハンマーで叩かれ、ケーキが振り落とされて除去されていた。 A filter cloth hanging rod is attached to the upper end of the filter cloth covering both filter surfaces of each filter plate of the above-mentioned squeezing filter press, and the left and right ends of the filter cloth hanging rod are shorter than the opening plate distance. It is connected by a connecting member such as a chain.At the time of opening the plate, the upper end of the opposing filter cloth is drawn inward and inclined in a lateral C shape, and the filter cloth hanging rod is The cake was shaken off and removed by a hammer.
さらに、ケーキの落下効率を上げる方法として、上記の対向濾布上縁部を振動ハンマーにより叩く方法以外に、濾布の裏面をそれぞれ主および補助濾布叩き部材によって直接振動を与える方法も提案されている(例えば、特許文献1参照)。
しかしながら、前述の対向濾布上縁部をハンマーで叩く方法では濾布の振動が比較的緩慢であり、ケーキの落下が不十分であった。また、濾布の裏面を直接振動させる方法はケーキを落下させることはできるが、装置の改造が必要となり、構造が複雑化し、改造費が高価となるという問題があった。 However, in the above-described method of hitting the upper edge portion of the opposing filter cloth with a hammer, the vibration of the filter cloth is relatively slow, and the cake does not fall sufficiently. In addition, the method of directly vibrating the back surface of the filter cloth can drop the cake, but it requires modification of the device, complicates the structure, and increases the cost of modification.
上記のような問題があったため、簡単かつ安価な設備で、濾過作業後に粘着性を有するケーキを濾布から確実に剥離・落下させ、圧搾式フィルタプレスの濾過作業の能率を向上させることができる方式が要求されていた。 Due to the above-mentioned problems, it is possible to improve the efficiency of the filtering operation of the squeeze type filter press by reliably peeling and dropping the sticky cake from the filter cloth after the filtering operation with simple and inexpensive equipment. A method was required.
本発明は上記課題を解決するものであり、複数の濾板が互いに平行に、隔離可能な状態で配置され、該濾板の半数が圧搾濾板である圧搾式フィルタプレスの汚泥ケーキ除去用濾布構造において、
圧搾濾板側の濾布に、ひも状または帯状の剥離材を固着し、濾板と対向させたことを特徴とする圧搾式フィルタプレスの汚泥ケーキ除去用濾布構造である。
The present invention solves the above-mentioned problem, and a filter for removing sludge cake of a squeeze filter press in which a plurality of filter plates are arranged in parallel and separable, and half of the filter plates are squeeze filter plates. In the fabric structure,
A filter cloth structure for removing sludge cake of a squeeze type filter press, characterized in that a strip-like or strip-like release material is fixed to a filter cloth on the side of the squeezed filter board and is opposed to the filter board.
また、上記ひも状または帯状の剥離材の固着数を濾布1枚当たり1〜5箇所としたことを特徴とする圧搾式フィルタプレスの汚泥ケーキ除去用濾布構造である。 The filter cloth structure for removing sludge cake of a squeeze type filter press is characterized in that the number of fixings of the strip-like or strip-like release material is 1 to 5 per filter cloth.
圧搾式フィルタプレスにおいて、濾過後に圧搾工程として圧搾濾板側の圧搾ゴム板に空気または水を圧入してケーキの脱水が行われるが、このとき、圧搾濾板側の濾布に帯状またはひも状の剥離材を固着しておくと、ケーキ中へ帯状またはひも状構造物が組み込まれた状態でケーキの脱水が行われる。
次に、ケーキを濾布から剥離させるために、濾板を開板するが、その際、汚泥ケーキは濾板側(圧搾濾板でない側)に付着しており、圧搾濾板側に付加させた帯状またはひも状の剥離材がケーキに取り込まれているため、濾板が開板した際、開板の駆動力によって圧搾濾板側へケーキを引張ることとなり、濾布からのケーキ剥離を迅速かつ確実に行うことが可能となる。
In the compression filter press, the cake is dehydrated by injecting air or water into the squeezed rubber plate on the side of the squeeze filter plate as a squeezing step after filtration. When the release material is fixed, the cake is dehydrated in a state where a band-like or string-like structure is incorporated in the cake.
Next, in order to peel the cake from the filter cloth, the filter plate is opened. At that time, the sludge cake is attached to the filter plate side (the side not the press filter plate) and added to the press filter plate side. Since the strip or strip-shaped release material is incorporated in the cake, when the filter plate is opened, the cake is pulled to the squeeze filter plate side by the driving force of the open plate, and the cake peeling from the filter cloth is quickly and reliably performed. Can be done.
以下、本発明の実施例について図面を参照しながら具体的に説明する。 Embodiments of the present invention will be specifically described below with reference to the drawings.
図8は圧搾式フィルタプレスの全体図であり、フィルタプレスはスタンド11を有するファーストヘッド12およびリヤヘッド13と、両ヘッド間を連絡する左右一対のサイドバー7にローラを介して移動できるように配置されたルーズヘッド14と両サイドバー7に一対の吊り手15を介して摺動でき、かつ吊り下げ状に保持された多数の濾板5および圧搾濾板4と、サイドバー7のガイドレール17にローラを介して前後の移動ができる門形移動体16とサイドバー7に設けられた濾板移動装置駆動部8とを備えている。
上記の門形移動体16によって、ケーキを含んだ濾板5および圧搾濾板4の間の濾布が濾布吊り装置6によって側面ハの字型に吊り上げられた後、濾布振動装置9によって、振動せしめられ、ケーキ3が濾布1から剥離される(図3、4)。
FIG. 8 is an overall view of the squeeze type filter press, and the filter press is arranged so that it can be moved via a roller to a
The filter cloth between the
(従来例)(図1、2、ひも状剥離材取付けなし)
図8の圧縮式フィルタプレスの入口10に原液が注入されると、図1に示すように濾板5と圧搾濾板4との間で濾過・圧搾されてケーキ3が生成される。
図1、2の濾板5および圧搾濾板4の前後両濾過面は、濾布1によって被覆されている。
図1は従来例の汚泥ケーキ除去用濾布構造による、圧搾工程終了時(閉板時)のケーキ状態の断面図であり、圧搾濾板側にひも状の剥離材は固着されていない。
上記の圧搾濾板および濾板を開板すると、図2に示すように開板時の駆動力によって濾布に付着していたケーキの一部が引張られて落下するが、粘着力が大きい部分は濾布から剥離せずに残っていた。
(Conventional example) (Figs. 1 and 2, no string-like release material attached)
When the stock solution is injected into the
The front and rear filtration surfaces of the
FIG. 1 is a cross-sectional view of the cake state at the end of the pressing process (at the time of closing the plate) using the conventional sludge cake removing filter cloth structure, and the strip-like release material is not fixed to the pressing filter plate side.
When the above-mentioned squeezed filter plate and filter plate are opened, as shown in FIG. 2, a part of the cake attached to the filter cloth is pulled and dropped by the driving force at the time of opening, but the portion having a large adhesive force is filtered. It remained without peeling from the cloth.
[実施例1](図3〜5、ひも状剥離材取付け:1箇所)
図3は本発明の実施例による、ひも状剥離材2を取付けた、汚泥ケーキ除去用濾布構造の圧搾工程終了時(閉板時)のケーキ状態を示す断面図であり、図5はひも状剥離材2の取付け位置を示す正面図である。圧搾濾板側の原液注入口18の上側1箇所にひも状の剥離材2の一端が固着されている。
上記の圧搾濾板および濾板を開板すると、図4に示すように開板時の駆動力により、圧搾濾板に固着したひも状の剥離材に引張られて圧搾濾板に付着していたケーキの大半が落下し、除去できた。
[Example 1] (FIGS. 3 to 5, string-like release material attached: one place)
FIG. 3 is a cross-sectional view showing the cake state at the end of the squeezing process (at the time of closing the plate) of the filter cloth structure for removing sludge cake, to which the string-
When the above filter plate and the filter plate are opened, as shown in FIG. 4, by the driving force at the time of opening, the cake of the cake that has been attached to the filter plate by being pulled by the string-like release material fixed to the filter plate Most dropped and could be removed.
[実施例2](図3、4、6、ひも状剥離材取付け:2箇所)
本発明の他の実施例による、ひも状剥離材2の取付け位置の正面図を図6に示す。圧搾濾板側の原液注入口18の両側にひも状の剥離材2が2箇所、固着される以外は実施例1と同様である。
圧搾濾板および濾板を開板すると、実施例1と同様、開板時の駆動力により、圧搾濾板に固着したひも状の剥離材2に引張られて圧搾濾板に付着していたケーキの大半が、落下し、除去できた。
[Example 2] (FIGS. 3, 4, and 6, attaching a strip-like release material: two places)
The front view of the attachment position of the strip | belt-
When the squeezed filter plate and the filter plate are opened, as in Example 1, most of the cake that was pulled by the string-
[実施例3](図3、4、7、ひも状剥離材取付け:3箇所)
本発明の他の実施例による、ひも状剥離材2の取付け位置の正面図を図7に示す。圧搾濾板側の原液注入口18の上側および両側にひも状の剥離材2が3箇所、固着される以外は実施例1と同様である。
圧搾濾板および濾板を開板すると、実施例1と同様、開板時の駆動力によって圧搾濾板に付着していたケーキのほぼ全部が、圧搾濾板に固着したひも状の剥離材2に引張られて落下し、除去された。
[Example 3] (FIGS. 3, 4, and 7, string-like release material attachment: 3 locations)
The front view of the attachment position of the strip | belt-
When the squeezed filter plate and the filter plate are opened, as in Example 1, almost all of the cake attached to the squeezed filter plate by the driving force at the time of opening the plate is pulled by the string-
[実施例4、5](図3、4、ひも状剥離材取付け:5、7箇所)
圧搾濾板側の原液注入口18の周辺にひも状の剥離材2を固着する箇所を5箇所(実施例4)、7箇所(実施例5)とし、他の条件は実施例1と同様として、ケーキの除去状態を確認した。
[Examples 4 and 5] (FIGS. 3 and 4, string-like release material attachment: 5 and 7 locations)
The places where the string-
上記のひも状剥離材を使用した実施例1〜5、これを使用しない従来例について、ケーキの残存する濾板の枚数/全濾板枚数、およびケーキ残存濾板におけるケーキ残存面積[%]を調査した。
その結果を表1に示す。
For Examples 1 to 5 using the above strip-like release material, and conventional examples not using this, the number of remaining filter plates / the total number of filter plates, and the remaining cake area [%] on the cake remaining filter plate are as follows. investigated.
The results are shown in Table 1.
上記の表1より明らかなように、ひも状剥離材2を取付けた、実施例1〜5は、これを取り付けない従来例よりも、ケーキの残存する濾板の枚数が低減しており、ケーキが残っている濾板であっても、ケーキ残存面積が抑えられていることが分かる。
また、ひも状剥離材2の固着数で比較すると、固着数が多いほど、濾板開板時に圧搾濾板側へケーキが引張られ、濾板からのケーキ剥離が迅速かつ確実に行われ、ケーキが除去されていることが分かる。
ただし、固着数を7箇所としても、ケーキの除去効果は変わらないため、工数、部材コストを考慮すると、1〜5箇所としておくことが好ましい。
さらに、上記実施例では剥離材の形状をひも状としたが、帯状でもよく、形状はいずれであっても差し支えない。
As is apparent from Table 1 above, Examples 1 to 5 with the string-
Moreover, when compared with the number of sticking of the strip-
However, the effect of removing the cake does not change even when the number of fixings is set to seven. Therefore, it is preferable to set the number to 1 to 5 in consideration of the man-hours and member costs.
Further, in the above embodiment, the shape of the release material is a string shape, but it may be a band shape, and any shape is acceptable.
1 濾布
2 ひも状剥離材
3 汚泥ケーキ
4 圧搾濾板
5 濾板
6 濾布吊り装置
7 サイドバ−
8 濾板移動装置駆動部
9 濾布振動装置
10 原液注入口
11 スタンド
12 ファーストヘッド
13 リヤヘッド
14 ルーズヘッド
15 吊り手
16 門形移動体
17 ガイドレール
18 原液注入口
19 濾液排出口
DESCRIPTION OF
8 Filter plate moving device drive unit 9 Filter
Claims (2)
圧搾濾板側の濾布にひも状または帯状の剥離材を固着し、濾板と対向させたことを特徴とする圧搾式フィルタプレスの汚泥ケーキ除去用濾布構造。 In the filter cloth structure for removing sludge cake of a squeeze type filter press in which a plurality of filter plates are arranged in parallel and separable, and half of the filter plates are squeeze filter plates,
A filter cloth structure for removing sludge cake of a squeeze type filter press, wherein a strip-like or strip-like release material is fixed to a filter cloth on the side of the squeezed filter board and is made to face the filter board.
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JP2004247144A JP4460391B2 (en) | 2004-08-26 | 2004-08-26 | Filter cloth structure for sludge cake removal of squeeze type filter press |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012157838A (en) * | 2011-02-02 | 2012-08-23 | Ishigaki Co Ltd | Filter cloth for filter press |
JP7220342B1 (en) | 2021-12-24 | 2023-02-10 | 株式会社笹山工業所 | Filter plates for filter press equipment and filter press equipment |
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2004
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012157838A (en) * | 2011-02-02 | 2012-08-23 | Ishigaki Co Ltd | Filter cloth for filter press |
JP7220342B1 (en) | 2021-12-24 | 2023-02-10 | 株式会社笹山工業所 | Filter plates for filter press equipment and filter press equipment |
JP2023095733A (en) * | 2021-12-24 | 2023-07-06 | 株式会社笹山工業所 | Filter plate for filter press apparatus and filter press apparatus |
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LAPS | Cancellation because of no payment of annual fees |