JP2008093644A - Bag filter - Google Patents

Bag filter Download PDF

Info

Publication number
JP2008093644A
JP2008093644A JP2006302106A JP2006302106A JP2008093644A JP 2008093644 A JP2008093644 A JP 2008093644A JP 2006302106 A JP2006302106 A JP 2006302106A JP 2006302106 A JP2006302106 A JP 2006302106A JP 2008093644 A JP2008093644 A JP 2008093644A
Authority
JP
Japan
Prior art keywords
bag
liquid
cake
filter
bag filter
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.)
Pending
Application number
JP2006302106A
Other languages
Japanese (ja)
Inventor
Kisaburo Yukimura
喜三郎 幸村
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.)
KOUMURA TECHNO KK
Original Assignee
KOUMURA TECHNO KK
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 KOUMURA TECHNO KK filed Critical KOUMURA TECHNO KK
Priority to JP2006302106A priority Critical patent/JP2008093644A/en
Publication of JP2008093644A publication Critical patent/JP2008093644A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Filtration Of Liquid (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bag filter which can filter out all the unfiltered liquid and also dehydrate a cake after being filtered although the unfiltered liquid remains in a bag when a liquid to treated, containing fine or solid particles, is solid/liquid separated by a conventional bag filter. <P>SOLUTION: The bag filter, equipped with a housing 1, a basket 5 to be housed in the housing 1, and a bag 6 to be housed in the basket 5, is structured to house a liquid-removing pipe 13 having a circular flange 14 on the upper-end outer peripheral side of a cylindrical part 15 in the bag 6 and to be able to seal the flange-part lower side of the liquid-removing pipe 13 and the peripheral part of a bag opening so that the unfiltered liquid in the bag 6 is compressed with compressed air to be entirely filtered. Also, after finishing of filtering, the cake is dehydrated by aeration with the compressed air to form a dehydrated cake. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は固液分離に使用される液体用加圧濾過器のバッグフィルターに関するものである。The present invention relates to a bag filter of a pressure filter for liquid used for solid-liquid separation.

従来のバッグフィルターはコンパクトな構造と簡単に濾材のバッグを交換できて使い易く、さらに廃棄物の削減ができるので、カートリッヂフィルターよりも経済的となり、近年幅広い分野で使用されている。このバッグフィルターを使って濾過した場合、バッグに目詰りが進行してバッグを取り出す時に、バッグの中に未濾過液が残ってしまう。
特に捕足粒子が小さく濾過抵抗が大きい処理液や濾過面積が大きいバッグを使用する場合には、未濾過液を無くすることができないという問題があり、バッグフィルターの欠点の一つである。
The conventional bag filter is easy to use because it has a compact structure and can easily change the bag of the filter medium. Further, since it can reduce waste, it is more economical than the cartridge filter and has been used in a wide range of fields in recent years. When filtering using this bag filter, when the bag is clogged and the bag is taken out, unfiltered liquid remains in the bag.
In particular, when using a treatment liquid with small catch particles and a large filtration resistance or a bag with a large filtration area, there is a problem that the unfiltrated liquid cannot be eliminated, which is one of the drawbacks of the bag filter.

解決しようとする問題は、上記のバッグの中に残る未濾過液を全て濾過できるようにし、かつ残ったケークも脱水して、バッグの中に残るケーク量をできるだけ少なくし、バッグ交換時の廃棄物の量を減少させることを目的とする。The problem to be solved is that all the unfiltered liquid remaining in the bag can be filtered, and the remaining cake is dehydrated to reduce the amount of cake remaining in the bag as much as possible. The purpose is to reduce the amount of things.

問題を解決するための手段Means to solve the problem

本発明は、本体部及び該本体部上端の開口を開閉自在に密閉する上蓋部を有したハウジングと、多数の孔が形成された前記ハウジング内に収容されるバスケットと、該バスケット内に収容されるバッグとを備えたバッグフィルターにおいて、筒状の上端外周面に環状のツバを有し、筒状下部は開口に形成された脱液パイプを前記バッグ内に収容し、該脱液パイプの上端ツバ部は前記バッグの開口周縁部上に設置可能となっている。
前記ツバ部は前記ハウジングの上蓋部によりバネ部材又はシール部材を介して押圧され、前記脱液パイプのツバ部下面と前記バッグ開口周縁部が密閉できる構造とした。
The present invention includes a housing having a main body and an upper lid that seals the opening of the upper end of the main body so as to be openable and closable, a basket accommodated in the housing formed with a plurality of holes, and accommodated in the basket. A bag filter having an annular flange on the outer peripheral surface of the cylindrical upper end, and the cylindrical lower portion accommodates a drainage pipe formed in an opening in the bag, and the upper end of the drainage pipe The brim portion can be installed on the peripheral edge of the opening of the bag.
The collar portion is pressed by a top cover portion of the housing via a spring member or a seal member, so that the bottom surface of the collar portion of the drainage pipe and the peripheral edge of the bag opening can be sealed.

発明の効果The invention's effect

本発明の効果として、本発明に係る脱液パイプを使用することにより、本体上部より供給された圧縮空気は脱液パイプの中に入り、圧縮空気はリークすることなく、バッグ内の未濾過液を加圧して濾過を促進しバッグ内部全面に均一なケークを形成させて未濾過液を全量濾過することかできる。また濾過終了後も圧縮空気を供給し続けることにより、ケークの中の残留液は通気脱水されて、含水率の少ないドライケークとなり、ケーク廃棄量が減少すると共にバッグ取出し時の液ダレによる汚れが無くなり、重量も軽くなってバッグ交換作業が容易になる。As an effect of the present invention, by using the drainage pipe according to the present invention, the compressed air supplied from the upper part of the main body enters the drainage pipe, the compressed air does not leak, and the unfiltered liquid in the bag Can be filtered to promote filtration, and a uniform cake can be formed on the entire inner surface of the bag to filter the entire amount of the unfiltered liquid. In addition, by continuing to supply compressed air after filtration, the residual liquid in the cake is aerated and dehydrated, resulting in a dry cake with a low water content, reducing the amount of cake discarded and causing contamination by dripping when the bag is removed. The weight is reduced and the bag can be easily replaced.

脱液パイプは筒部の断面形状を円形にすることが好ましいが、多角形や星形等の形状とすることもできる。
また筒部内の液量を少なくするために筒部を2重パイプ構造にしたり、ダミー材を筒部内側に固定して筒部の体積を増加させてもよい。筒部の材質は通常金属製を使用するが、ケーク量の多い場合には筒が変形可能となるゴムや樹脂製を使用することもできる。筒部の長さは通常バッグの全長より20mm〜200mm程度短くするのが適当である。
The drainage pipe preferably has a circular cross-sectional shape, but may have a polygonal shape, a star shape, or the like.
In order to reduce the amount of liquid in the cylinder part, the cylinder part may have a double pipe structure, or a dummy material may be fixed inside the cylinder part to increase the volume of the cylinder part. The material of the tube portion is usually made of metal, but when the amount of cake is large, it is also possible to use rubber or resin that can deform the tube. It is appropriate that the length of the cylindrical portion is usually about 20 mm to 200 mm shorter than the overall length of the bag.

本発明の実施例1を図面に従って説明する。
図面1は脱液工程時の従来のバッグフィルターの断面図を示す。
ハウジング1は、上端が開口した円筒タンクの本体2と開閉可能な上蓋3を備えた密閉容器で、本体2の内部に設けた係止輪4の内径側にバスケット5を装置している。バスケット5は多孔板からなり、上部が開口している円筒状容器でその中に袋状の濾材であるバッグ6を収容し、その開口周縁部上を固定金具7とバネ8で押圧し密閉している。
本体2には液入口弁9と濾液出口弁10及び空気入口弁11が接続されており、上蓋3には脱気弁12が接続されている。
A first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a cross-sectional view of a conventional bag filter at the time of liquid removal.
The housing 1 is a sealed container having a cylindrical tank main body 2 having an open upper end and an openable / closable upper lid 3, and a basket 5 is provided on the inner diameter side of a locking ring 4 provided inside the main body 2. The basket 5 is made of a perforated plate, and is a cylindrical container having an opening at the top. A bag 6 as a bag-like filter medium is accommodated therein, and the opening peripheral edge is pressed by a fixing metal 7 and a spring 8 to be sealed. ing.
A liquid inlet valve 9, a filtrate outlet valve 10 and an air inlet valve 11 are connected to the main body 2, and a deaeration valve 12 is connected to the upper lid 3.

次に運転時の濾過工程では、液入口弁9から本体内に加圧供給された処理液はバッグ6の内側から外側へと濾過されて、濾液弁10から濾液は送出され、固体粒子はバッグ6の中に残る。濾過終了後にバッグ6を交換する時には、本体2内部の未濾過液を濾過する脱液工程を行う。脱液工程では、液入口弁9を閉じて、空気入口弁11を開き圧縮空気で加圧して本体2内の未濾過液を濾過するが、未濾過液の液面がバッグ6の上部から下方にさがると、圧縮空気がバッグ6の気層部になった部分からリークして、濾液出口弁10から排気されて本体2内の圧力が大気圧に近づく。バッグ6内の未濾過液は微少の圧力差で濾過されることになり、全量濾過をするには長時間を要するか又はケーク抵抗の大きな処理液の場合はほとんど濾過ができなくなり、バッグ6の中に未濾過液Aが残る。Next, in the filtration step during operation, the processing liquid pressurized and supplied from the liquid inlet valve 9 into the main body is filtered from the inside to the outside of the bag 6, the filtrate is sent out from the filtrate valve 10, and the solid particles are sent to the bag. Remain in 6. When the bag 6 is replaced after the filtration is completed, a liquid removal step of filtering the unfiltrated liquid inside the main body 2 is performed. In the liquid removal step, the liquid inlet valve 9 is closed and the air inlet valve 11 is opened and pressurized with compressed air to filter the unfiltered liquid in the main body 2. If it falls, compressed air leaks from the part which became the air layer part of the bag 6, is exhausted from the filtrate outlet valve 10, and the pressure in the main body 2 approaches atmospheric pressure. The unfiltered liquid in the bag 6 is filtered with a slight pressure difference, and it takes a long time to filter the whole amount, or in the case of a treatment liquid having a large cake resistance, filtration is almost impossible. Unfiltrated liquid A remains in it.

図2は本発明のバッグフィルターで脱液工程時の断面図を示す。
本発明のバッグフィルターは図1に示した従来のバッグフィルターの構成の中で固定金具7を脱液パイプ13に取り替えるのみである。本発明による脱液工程では、空気入口弁11から供給された圧縮空気は本体2内に残っている未濾過液を脱液パイプ13の円筒下端の開口部に液面が到達するまで加圧して濾過を続けることができる。液面が脱液パイプ13の最下端を過ぎると、圧縮空気はバッグ6の濾過面積全面から通気することになり、ケーク中の保留液を通気脱水して、含水率の低い脱水ケークBになる。
実施例1では、本体2に1本のバッグ6を使用した場合を示しているが、本体2に装着するバッグ6は複数本使用することもある。
また実施例1では、本体の上方部に液入口を設けたサイド入液方法を示しているが、上蓋部に液入口を設けたトップ入液方式とすることもできる。
FIG. 2 shows a cross-sectional view of the bag filter of the present invention at the time of liquid removal process.
In the bag filter of the present invention, the fixing bracket 7 is simply replaced with the drainage pipe 13 in the configuration of the conventional bag filter shown in FIG. In the dewatering step according to the present invention, the compressed air supplied from the air inlet valve 11 pressurizes the unfiltered liquid remaining in the main body 2 until the liquid level reaches the opening at the lower end of the cylinder of the dewatering pipe 13. Filtration can continue. When the liquid level passes the lowermost end of the drainage pipe 13, the compressed air is vented from the entire filtration area of the bag 6, and the retained liquid in the cake is aerated and dehydrated, so that the dehydrated cake B having a low moisture content is obtained. .
In the first embodiment, a case where one bag 6 is used for the main body 2 is shown, but a plurality of bags 6 to be attached to the main body 2 may be used.
Moreover, in Example 1, although the side liquid injection method which provided the liquid inlet in the upper part of the main body is shown, it can also be set as the top liquid injection method which provided the liquid inlet in the upper cover part.

図3及び図4は脱液パイプの詳細図を示す。
脱液パイプ13はバッグ6の全長より20mm〜200mmぐらい短い筒部15の上端に環状のツバ14を備えており、バッグの開口周縁部上に設置可能となっている。
筒部15の外周面には、稼動時のショックや振動、脈動によるバッグ6の負担を軽減し、バッグ6をバスケット5に正しく収容するためにガイド16を設ける場合もある。
3 and 4 show detailed views of the drainage pipe.
The drainage pipe 13 is provided with an annular collar 14 at the upper end of a cylindrical portion 15 that is 20 mm to 200 mm shorter than the overall length of the bag 6 and can be installed on the opening peripheral edge of the bag.
A guide 16 may be provided on the outer peripheral surface of the cylindrical portion 15 in order to reduce the burden on the bag 6 due to shock, vibration, and pulsation during operation, and to correctly accommodate the bag 6 in the basket 5.

本発明の活用例としては、細かい固形分粒子を含む固液分離の必要なスラリー処理液に最適である。
またスラリー濃度が高くてケーク量が多くなる処理液には通気脱水により、ケーク廃棄量が大幅に削減できるので本発明のバッグフィルターを利用すると有効である。
As an application example of the present invention, it is most suitable for a slurry processing liquid that requires fine solid-liquid separation including fine solid particles.
In addition, since the amount of cake discarded can be significantly reduced by aeration and dehydration for a treatment liquid having a high slurry concentration and a large amount of cake, it is effective to use the bag filter of the present invention.

従来のバッグフィルターの断面図  Cross-sectional view of a conventional bag filter 実施例1のバッグフィルターの断面図  Sectional drawing of the bag filter of Example 1 実施例1の脱液パイプの断面図  Sectional drawing of the drainage pipe of Example 1 実施例1の脱液パイプの下面図  Bottom view of the drainage pipe of Example 1

符号の説明Explanation of symbols

1: ハウジング
2: 本体
3: 上蓋
4: 係止輪
5: バスケット
6: バッグ
7: 固定金具
8: バネ
9: 液入口弁
10: 濾液出口弁
11: 空気入口弁
12: 脱気弁
13: 脱液パイプ
14: ツバ
15: 筒部
16: ガイド
A: 未濾過液
B: 脱水ケーク
1: Housing 2: Body 3: Upper lid 4: Locking ring 5: Basket 6: Bag 7: Fixing bracket 8: Spring 9: Liquid inlet valve 10: Filtrate outlet valve 11: Air inlet valve 12: Deaeration valve 13: Degassing Liquid pipe 14: Brim 15: Tube portion 16: Guide A: Unfiltrated liquid B: Dehydrated cake

Claims (1)

本体部及び該本体部上端の開口を開閉自在に密閉する上蓋部を有したハウジングと、多数の孔が形成された前記ハウジング内に収容されるバスケットと、該バスケット内に収容されるバッグとを備えたバッグフィルターにおいて、筒状の上端外周面に環状のツバを有し、筒状下部は開口に形成された脱液パイプを前記バッグ内に収容し、該脱液パイプの上端ツバ部は前記バッグの開口周縁部上に設置可能となっている。
前記ツバ部は前記ハウジングの上蓋部によりバネ部材又はシール部材を介して押圧され、前記脱液パイプのツバ部下面と前記バッグ開口周縁部が密閉できる構造としたことを特徴とするバッグフィルター。
A housing having a main body and an upper lid for sealing the opening of the upper end of the main body so as to be openable and closable, a basket accommodated in the housing in which a plurality of holes are formed, and a bag accommodated in the basket In the bag filter provided, the cylindrical upper end has an annular collar on the outer peripheral surface of the cylindrical upper part, the cylindrical lower part accommodates a drainage pipe formed in the opening in the bag, and the upper end flange part of the drainage pipe It can be installed on the opening periphery of the bag.
The bag filter has a structure in which the flange portion is pressed by an upper lid portion of the housing via a spring member or a seal member so that the lower surface of the flange portion of the drainage pipe and the peripheral edge of the bag opening can be sealed.
JP2006302106A 2006-10-10 2006-10-10 Bag filter Pending JP2008093644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006302106A JP2008093644A (en) 2006-10-10 2006-10-10 Bag filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006302106A JP2008093644A (en) 2006-10-10 2006-10-10 Bag filter

Publications (1)

Publication Number Publication Date
JP2008093644A true JP2008093644A (en) 2008-04-24

Family

ID=39377056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006302106A Pending JP2008093644A (en) 2006-10-10 2006-10-10 Bag filter

Country Status (1)

Country Link
JP (1) JP2008093644A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011024253A1 (en) * 2009-08-25 2011-03-03 Smc株式会社 Filter
JP2012206095A (en) * 2011-03-30 2012-10-25 Ben:Kk Strainer
CN104826417A (en) * 2015-05-11 2015-08-12 北京化工大学常州先进材料研究院 Bag type dust collector
CN105983260A (en) * 2015-03-04 2016-10-05 北京捷水科技有限责任公司 Improved squeezing filter
KR102611313B1 (en) * 2023-06-22 2023-12-07 주식회사 신성플랜트 Filter cage of bag filter having filter function

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011024253A1 (en) * 2009-08-25 2011-03-03 Smc株式会社 Filter
DE112009005169T5 (en) 2009-08-25 2012-08-02 Smc Kabushiki Kaisha filter
DE112009005169B4 (en) * 2009-08-25 2013-04-04 Smc Kabushiki Kaisha filter
JP5439635B2 (en) * 2009-08-25 2014-03-12 Smc株式会社 filter
US8978898B2 (en) 2009-08-25 2015-03-17 Smc Kabushiki Kaisha Filter
JP2012206095A (en) * 2011-03-30 2012-10-25 Ben:Kk Strainer
CN105983260A (en) * 2015-03-04 2016-10-05 北京捷水科技有限责任公司 Improved squeezing filter
CN105983260B (en) * 2015-03-04 2019-09-13 北京捷水科技有限责任公司 A kind of improved squeeze and filter device
CN104826417A (en) * 2015-05-11 2015-08-12 北京化工大学常州先进材料研究院 Bag type dust collector
KR102611313B1 (en) * 2023-06-22 2023-12-07 주식회사 신성플랜트 Filter cage of bag filter having filter function

Similar Documents

Publication Publication Date Title
US5733448A (en) Manually pressurized water filtering container
CN101652169A (en) Membrane module protection
JP2008093644A (en) Bag filter
CN105251432A (en) Solid-liquid separation reaction kettle
CN209405829U (en) A kind of coating removal filtration device that can remove metal impurities in advance
KR101488965B1 (en) Filtering equipment for sewage and waste water using sponge filter
CA2622291A1 (en) Scavenging filter
US20210016206A1 (en) Modular filtration system
CN201755068U (en) Suction type filter water cup
RU97114629A (en) METHOD FOR FILTERING CLEANING LIQUID AND FILTER FOR CLEANING LIQUID
CN209060593U (en) Liquid discharge device in multifunctional extracting pot
CN208115459U (en) dry gas filter
CN211111378U (en) Pressurization equipment for reverse osmosis filtration
US7435344B2 (en) Device for separating impurities from liquids
US4220542A (en) Filter having an interior liquid displacement means
CN209155264U (en) A kind of filter device
CN212403679U (en) Filter equipment is used in making wine
KR102624840B1 (en) Device for separating solid materials from liquids and gases
KR20160001998U (en) A fermentation cap
JP6917246B2 (en) Filter cover for filtration
KR20200070938A (en) Filtering apparatus for automatically discharging waste liguid
KR101629902B1 (en) Apparatus for Filtering Biomass from Groundwater and Surfacewater
JP2005013940A (en) Filtration apparatus and filtration method
CN215305041U (en) Water purification filter element for coffee machine and coffee machine provided with water purification filter element
JPS6034398Y2 (en) Oil removal device