JPH01119317A - Filter apparatus - Google Patents
Filter apparatusInfo
- Publication number
- JPH01119317A JPH01119317A JP62274900A JP27490087A JPH01119317A JP H01119317 A JPH01119317 A JP H01119317A JP 62274900 A JP62274900 A JP 62274900A JP 27490087 A JP27490087 A JP 27490087A JP H01119317 A JPH01119317 A JP H01119317A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- liquid
- tank
- filtration
- outlet
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 99
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000001914 filtration Methods 0.000 claims abstract description 37
- 239000006185 dispersion Substances 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims description 21
- 238000011084 recovery Methods 0.000 claims description 16
- 239000002657 fibrous material Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 abstract description 6
- 238000003756 stirring Methods 0.000 abstract description 5
- 239000000843 powder Substances 0.000 description 11
- 238000011001 backwashing Methods 0.000 description 8
- 239000000835 fiber Substances 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- -1 Tetoron Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Abstract
Description
〈産業上の利用分野〉
本発明は、メツキ処理液等の汚濁液を清浄する濾過装置
に関する。
〈従来技術〉
外周面に、繊維材、布材等の濾材を周設された濾過筒に
あって、濾過物によってその濾材に目詰りを生じた場合
に、従来は、これを廃棄して新しい濾過筒と交換してい
た。
この濾材の目詰りを洗浄するための手段として、濾材で
一旦す化した清浄液をポンプで逆流させて洗浄する方法
も考えられる。しかるにこの方法は、清浄液の供給時間
及び供給量の制御が面倒であり、しかも折角濾過して得
た清浄液を大量に使用することとなり、無駄が多い等の
諸欠点がある。このため、この方法は適当とは言えず、
結局、濾過筒を使い捨てにしているのが現状である。
一方、濾材面に紙等の繊維層を形成して、これを濾過材
層として、該濾過面に透過した被処理液の線通処理を施
す謹過装置は１例えば特開昭５５−５９８１８号に開示
されているように公知である。また、紙等のｍ＃Ｉ材と
、粉状体とを濾材面に被着したものは特開昭６２−４５
３０６号に開示されている。
本発明は、上述のように濾過層を紙等の繊維材、粉状態
等の分散材からなる濾過助材を用いて形成するようにし
たものにあって、濾過能が優れ、濾過筒の効果的な洗浄
が可能で、しかも洗浄サイクルの時間が短く、さらに濾
過筒の洗浄の際。
にも、濾過助材の消失を極力抑止し得る機能を備えた濾
過装置の提供を目的とするものである。
く問題点を解決するための手段〉
本発明は、被処理液の供給口、清浄液の流出口、液回収
口及びドレイン口を備えたタンク内に、外周の濾材面に
繊維材、布材等の分散材からなる濾過助材が被覆される
濾過筒を一〜複数個垂設して、その内部を前記流出口と
連通するととも゛に、前記流出口と接続する流出管路に
、切換え弁を介して濾過筒内に加圧空気を作用させるエ
アー供給源を接続し、前記供給口と接続する流入管路に
、切換え弁を介して助材液槽の出口を接続し、さらに前
記液回収口を開閉弁を備えた迂回管路により助材液槽内
と連通したことを特徴とするものである。
ここで濾過助材は、繊維材のほか、活性炭、珪素土１石
炭、金属粉末等種々の材料から一種又は複数種を混合し
た粉状体等により任意に選択され得る。また濾材面に繊
維材層を形成して後に粉状体層を形成するようにしても
よい。
く作用〉
濾過筒は、流入管路の切換え弁を制御して供給口を助材
液槽側に接続すると、該助材液槽内の助材が分散含有さ
れた液がタンク内に供給され、該分散液が濾過筒周面に
形成された濾材を透過することにより、液中の濾過助材
が被着し、濾材面に濾過助層が形成される。
次に、流入管路を被処理液の流入側に切換え、タンク内
に被処理液を供給して濾過運転すると。
濾材と濾過助層とにより濾過作用を生じ、被処理液は清
浄液となって流出口から排出される。
この濾過運転を継続すると、１！過助層の表面には濾塵
層が形成され、その層厚の増加とともに、タンク内の圧
力が増大して、濾過効率が低下する。そこで処理液の供
給口を遮断し、迂回管路の開閉弁を操作して液回収口を
開放し、流出管路を切換えてエアー供給源から濾過筒内
に圧力空気を供給し、逆洗工程に入る。
このエアー供給により、濾過筒の内圧が高まり、濾過筒
内の清浄液が圧力空気により、濾過筒表面を透過して外
へ噴出する。このとき、この液流出により、濾過筒表面
に形成された濾過助層が、濾塵層とともに剥離し、濾過
筒の目詰まりが解除され、洗浄される。また液回収口か
ら排出された濾過助材を含有する液は迂回管路を経由し
て助材液槽に回収され、再使用される。
前記洗浄は、液回収口を開放しないで、ドレイン口を開
放することもできる。
〈実施例〉
本発明の一実施例を添付図面について説明する。
第１図において、ｌはタンクであって、上部に鍔が形成
された管状本体２の上面に１円弧膨隆状の蓋枠３が被着
されてボルト４で固定されるとともに、管状本体２の下
部には、底枠５が外嵌している。前記底枠５の内周面と
管状本体２の周面間には、液流路６が形成され、前記底
枠５に液流路６に連通する供給ロアが設けられる。該供
給ロアは三方切換え弁８により開閉制御される流入管路
９と連通している。また底枠５の下底には開閉弁１１に
より開閉制御されるドレイン口ｌＯが設けられている。
前記管状本体２の上部内面には係止突起２ａが形成され
、該係止突起２ａには、伸縮性濾過筒１７が上方から挿
入する複数の連結孔１２が形成された取付は板１３が乗
載されている。
前記濾過筒１７は、第１．４図のように長尺状コイル１
８の外周面に布材、ガラス繊維、：、テトロン、ポリプ
ロピレン等の繊維材からなる濾材１９を周設し、その一
端のコイル１８を密に拡径してこれを口縁２０とすると
ともに、他端には、ポリプロピレン等の樹脂製栓材２１
を配設し、その下部で濾材１９を加熱溶着することによ
り封止している。而て、一端が開口し、他端が閉鎖した
長尺方向に伸縮性を有する伸縮性濾過筒１７が構成され
る。この濾過筒１７は例えば長さが５００１腸、外径１
２ｍ腸等の比較的細状のものが適用され得る。
前記濾過筒１７の数は、−〜数十本その所要処理能力に
対応して設けることができる。
前記濾過筒１７は、連結孔１２に上方から挿入して、口
縁２０を連結孔１２周縁に掛けて吊持される。そして取
付は板１３上には、前記連結孔１２と上下で一致する透
孔１４が形成された保持板１５が被着されてボルト１６
により相互に連結されている。
前記保持板１５と蓋枠３間には清浄液の液溜２３が形成
され、蓋枠３上端に設けた流出口２４と連通している。
すなわち、前記流出口２４は、連結孔１２．透孔１４を
介して各濾過筒１７の内部と連通ずることとなる。
さらに前記管状本体２の上部側壁には、エアー抜き口を
兼用する液回収口３０が設けられている。
次に供給ロア、流出口２４及び液゛回収口３０の管接続
について説明する。
前記流出口２４は、清浄液を回収する処理済槽（図示せ
ず）と流出管路２５により連通している。そして流出管
路２５には清浄液の流下を制御する三方切換え弁２６と
、加圧空気を発生させるエアー供給源２７への切換えを
制御する三方切換え弁２８が設けられている。
また前記供給ロアは、メツキ液槽等の原液タンク４０と
流入管路９により連通している。前記流入管路９には、
ポンプ３４が介装され、その吸入側に三方切換え弁８を
介して、助材液槽３５の流出口に連通ずる管路３９が接
続している。さらに三方切換え弁８の他供給口は前記原
液タンク４０と接続されている。
前記助材液槽３５は、攪拌翼３８が内装された供給筒３
６が立設され、開閉弁３７を介して助材液槽３５内と連
通している。また助材液槽３５は、三方切換え弁２６を
介して流出管路２５と接続する管路４１の目端が挿入さ
れ、同じく液回収口３０と開閉弁３１が介装された迂回
管路３２の目端が挿入されており、流出口２４及び液回
収口３０からの液が流入し得るようになっている。
尚、三方切換え弁８，２６．２８は開閉弁を組合わせる
ことにより代替することができ、この場合はこの組合わ
された開閉弁が切換え弁の概念を構成することとなる。
前記構成にあって、各種運転態様を以下説明する。<Industrial Application Field> The present invention relates to a filtration device for cleaning contaminated liquids such as plating liquids. <Prior art> In the case of a filter cylinder having a filter material such as a fiber or cloth material arranged around its outer circumferential surface, when the filter material becomes clogged with filter material, conventionally the material is discarded and a new one is installed. It was replaced with a filter tube. As a means for cleaning the clogged filter medium, it is also possible to use a pump to flow back the cleaning liquid that has been solidified in the filter medium. However, this method has various drawbacks, such as it is troublesome to control the supply time and amount of the cleaning liquid, and a large amount of the cleaning liquid obtained through painstaking filtration is used, resulting in a large amount of waste. For this reason, this method is not appropriate,
After all, the current situation is that filter cylinders are disposable. On the other hand, a filtration device that forms a fibrous layer such as paper on the surface of a filter medium, uses this as the filter medium layer, and performs a line treatment on the liquid to be treated that has passed through the filter surface is disclosed in, for example, JP-A No. 55-59818. It is known as disclosed in . In addition, a filter in which m#I material such as paper and powder is adhered to the surface of the filter medium is disclosed in Japanese Patent Application Laid-Open No. 62-45.
No. 306. As described above, the present invention has a filtration layer formed using a filtration aid made of a fibrous material such as paper or a dispersion material such as powder, which has excellent filtration performance and is effective for the filtration cylinder. It is possible to clean the filter cylinder in a short time, and the cleaning cycle time is short. Another object of the present invention is to provide a filtration device having a function of suppressing loss of filter aid as much as possible. Means for Solving Problems> The present invention provides a tank equipped with a supply port for a liquid to be treated, an outlet for a cleaning liquid, a liquid recovery port, and a drain port, and a fibrous material or a cloth material on the outer surface of the filter medium. One or more filter cylinders coated with a filter aid made of a dispersion material such as An air supply source that applies pressurized air to the inside of the filtration cylinder is connected via a valve, an outlet of the auxiliary liquid tank is connected via a switching valve to an inflow pipe connected to the supply port, and the outlet of the auxiliary liquid tank is connected to The recovery port is characterized by communicating with the inside of the auxiliary material liquid tank through a detour pipe equipped with an on-off valve. Here, the filter aid may be arbitrarily selected from fibrous materials, activated carbon, siliceous earth coal, metal powder, and the like, such as a powder mixture of one or more of various materials. Alternatively, a fibrous layer may be formed on the surface of the filter medium, and then a powder layer may be formed thereon. When the filter cylinder controls the switching valve of the inflow pipe and connects the supply port to the auxiliary material liquid tank side, the liquid containing the auxiliary materials dispersed in the auxiliary material liquid tank is supplied into the tank. When the dispersion liquid passes through the filter medium formed on the peripheral surface of the filter cylinder, the filter aid material in the liquid adheres to the filter medium, and a filter aid layer is formed on the surface of the filter medium. Next, the inflow pipe line is switched to the inflow side of the liquid to be treated, and the liquid to be treated is supplied into the tank for filtration operation. A filtration action is produced by the filter medium and the filter aid layer, and the liquid to be treated becomes a cleaning liquid and is discharged from the outlet. If you continue this filtration operation, 1! A filter dust layer is formed on the surface of the filter aid layer, and as the layer thickness increases, the pressure inside the tank increases and the filtration efficiency decreases. Therefore, the processing liquid supply port is shut off, the on-off valve of the detour pipe is operated to open the liquid recovery port, the outflow pipe is switched, and pressurized air is supplied from the air supply source into the filter cylinder, and the backwashing process is carried out. to go into. This air supply increases the internal pressure of the filter cylinder, and the pressure air causes the cleaning liquid in the filter cylinder to pass through the surface of the filter cylinder and jet out to the outside. At this time, due to the outflow of the liquid, the filter aid layer formed on the surface of the filter cylinder is peeled off together with the filter dust layer, and the filter cylinder is unclogged and washed. Further, the liquid containing the filter aid discharged from the liquid recovery port is collected into the aid liquid tank via the detour pipe and is reused. The cleaning can also be performed by opening the drain port without opening the liquid recovery port. <Example> An example of the present invention will be described with reference to the accompanying drawings. In FIG. 1, l is a tank, and a lid frame 3 in the shape of a one-circular bulge is attached to the upper surface of a tubular body 2 having a flange formed on the upper part and fixed with bolts 4. A bottom frame 5 is fitted onto the lower part. A liquid flow path 6 is formed between the inner peripheral surface of the bottom frame 5 and the peripheral surface of the tubular body 2, and a supply lower that communicates with the liquid flow path 6 is provided in the bottom frame 5. The supply lower communicates with an inflow pipe 9 whose opening and closing are controlled by a three-way switching valve 8. Further, at the bottom of the bottom frame 5, a drain port 10 is provided which is controlled to open and close by an on-off valve 11. A locking protrusion 2a is formed on the inner surface of the upper part of the tubular body 2, and a plurality of connecting holes 12 are formed in the locking protrusion 2a, into which the elastic filter tube 17 is inserted from above. It is listed. The filter cylinder 17 has a long coil 1 as shown in FIG. 1.4.
A filter medium 19 made of a fibrous material such as cloth material, glass fiber, Tetoron, polypropylene, etc. is provided around the outer peripheral surface of 8, and the diameter of the coil 18 at one end of the filter medium 18 is densely enlarged to form a lip 20. At the other end, there is a plug material 21 made of resin such as polypropylene.
is disposed, and a filter medium 19 is heat welded to the lower part of the filter medium 19 to seal it. Thus, a stretchable filter tube 17 is constructed that is open at one end and closed at the other end and has stretchability in the longitudinal direction. For example, this filter cylinder 17 has a length of 500 mm and an outer diameter of 1 mm.
A relatively narrow one such as a 2m intestine can be applied. The number of filter cylinders 17 can be from - to several tens depending on the required processing capacity. The filter tube 17 is inserted into the connecting hole 12 from above, and is suspended by hooking the mouth edge 20 over the periphery of the connecting hole 12. Then, for installation, a retaining plate 15 in which a through hole 14 that matches the connecting hole 12 above and below is formed is placed on the plate 13, and a bolt 16 is attached to the plate 13.
are interconnected by. A cleaning liquid reservoir 23 is formed between the holding plate 15 and the lid frame 3, and communicates with an outlet 24 provided at the upper end of the lid frame 3. That is, the outlet 24 is connected to the connecting hole 12. It communicates with the inside of each filter cylinder 17 via the through hole 14. Further, the upper side wall of the tubular body 2 is provided with a liquid recovery port 30 which also serves as an air vent. Next, the pipe connections between the supply lower, the outlet 24, and the liquid recovery port 30 will be explained. The outflow port 24 communicates with a treated tank (not shown) for recovering the cleaning liquid through an outflow pipe 25. The outflow pipe 25 is provided with a three-way switching valve 26 that controls the flow of the cleaning liquid, and a three-way switching valve 28 that controls switching to an air supply source 27 that generates pressurized air. Further, the supply lower is in communication with a raw solution tank 40 such as a plating liquid tank through an inflow pipe 9. The inflow pipe 9 includes:
A pump 34 is installed, and a pipe line 39 communicating with an outlet of an auxiliary material liquid tank 35 is connected to the suction side of the pump 34 via a three-way switching valve 8. Furthermore, the other supply ports of the three-way switching valve 8 are connected to the stock solution tank 40. The auxiliary material liquid tank 35 is a supply cylinder 3 in which stirring blades 38 are installed.
6 is installed upright and communicates with the inside of the auxiliary material liquid tank 35 via an on-off valve 37. In addition, the auxiliary material liquid tank 35 has a bypass pipe 32 into which the end of a pipe 41 connected to the outflow pipe 25 via the three-way switching valve 26 is inserted, and a bypass pipe 32 which is also provided with a liquid recovery port 30 and an on-off valve 31. The end of the hole is inserted so that the liquid from the outflow port 24 and the liquid recovery port 30 can flow in. The three-way switching valves 8, 26, and 28 can be replaced by a combination of on-off valves, and in this case, the combined on-off valves constitute the concept of a switching valve. In the above configuration, various operating modes will be explained below.
前記構成において、濾過筒１７の濾材１９に濾過助層Ｘ
を形成する工程について説明する。
まず、あらかじめ液を供給しである供給筒３６内に紙を
供給して、撹拌ズ３８を回転し、該供給筒３６内で紙を
繊維状に裁断し分散させる。
次に、活性炭、珪素土２石炭、金属粉末等種々の材料か
ら一種又は複数種混合してなる粉状体を混入する。この
量は１例えば、液２０！Ｌに対して５０ｇ程度とする。
さらに、攪拌翼３８を回転し、液中の繊維と共に攪拌す
る。この粉状体の混合により、繊維はさらに細かく裁断
され、液中に分散する。
かかる分散液を、開閉弁３７を開放して、助材液４ｆｇ
３５本体に移し換える０次に、流出管路２５の切換え弁
２６を切換えて、前記流出口２４を助材液槽３５側に連
通させておいてから、前記切換え弁８を助材液槽３５側
に切換えて、ポンプ３４を駆動し、前記分散液を供給ロ
アから通人孔６の周方向へ流出させる０分散液は１通人
孔６を旋回して下降し、渦流となってタンク本体ｌａ内
に流入する。かかる渦流を生じさせたのは、濾材１９の
外周面に、繊維材、粉状体等の濾過助材を均一に付着さ
せるためである。
前記分散液は、濾材１９に繊維と粉状体とからなる濾過
助材を付着し、流出口２４から流出管路２５を介して、
助材液槽３５に回収され、さらに供給ロアから流出する
循環路を経て、再び濾材１９を透過する。この循環によ
り、分散液の濾過助材は濾材１９周部に付着し、助材液
槽３５内の液は清浄となり、而て、濾材１９周部に第２
図に示すように濾過助！ａｘが形成される。この濾過助
層Ｘは濾材１９の上下方向に沿って厚が略均−であり、
繊維中に粉状体が分散されることにより、高密度となる
。このため、後記する濾過工程に際して、良好な濾過能
を得ることができる。
次に濾過助層Ｘをさらに高密度にする手段について述べ
る・
濾過助層Ｘの形成を完了した後に、次に粉状体のみを供
給筒３６の開口から供給して液中に分散させ、前記と同
様に濾材１９を透過させて循環させる。これにより前記
濾過助ｆｉｘの周面に粉状層ｙが付着し、前記したポン
プ３４の作用により、各粒子が濾過助層Ｘを押付ける。
このため濾過助層Ｘがその周部から圧縮され、第３図の
ようにさらに密状態となる。In the above configuration, a filter aid layer X is provided on the filter medium 19 of the filter cylinder 17.
The process of forming will be explained. First, paper is supplied into the supply tube 36 which is previously supplied with liquid, and the stirring bowl 38 is rotated to cut and disperse the paper into fibers within the supply tube 36 . Next, powdered material made of a mixture of one or more of various materials such as activated carbon, siliceous earth 2 coal, and metal powder is mixed. This amount is 1, for example, liquid 20! It is about 50g per L. Further, the stirring blade 38 is rotated to stir the fibers together with the fibers in the liquid. By mixing this powder, the fibers are further cut into fine pieces and dispersed in the liquid. The on-off valve 37 is opened to transfer the dispersion liquid to 4fg of the auxiliary material liquid.
35 Transfer to the main body Next, switch the switching valve 26 of the outflow pipe 25 to connect the outlet 24 to the auxiliary material liquid tank 35 side, and then switch the switching valve 8 to the auxiliary material liquid tank 35 side. side, the pump 34 is driven, and the dispersion liquid flows out from the supply lower in the circumferential direction of the manhole 6. The dispersion liquid swirls around the manhole 6 and descends, becoming a vortex and flowing into the tank body. flows into la. The purpose of creating such a vortex flow is to uniformly adhere filter aids such as fibers and powder to the outer circumferential surface of the filter medium 19. The dispersion liquid adheres a filter aid consisting of fibers and powder to the filter medium 19 and passes through the outflow pipe 25 from the outflow port 24.
The liquid is collected in the auxiliary material liquid tank 35, passes through the circulation path flowing out from the supply lower, and passes through the filter medium 19 again. Through this circulation, the filter aid of the dispersion liquid adheres to the periphery of the filter medium 19, the liquid in the auxiliary material liquid tank 35 becomes clean, and the second filter aid is attached to the circumference of the filter medium 19.
Filter aid as shown! ax is formed. The filter aid layer X has a substantially uniform thickness along the vertical direction of the filter medium 19,
High density is achieved by dispersing the powder in the fibers. For this reason, good filtration performance can be obtained during the filtration step described later. Next, we will describe a means to further increase the density of the filtration aid layer X. After completing the formation of the filtration aid layer Similarly, the filter medium 19 is passed through and circulated. As a result, the powder layer y adheres to the circumferential surface of the filter aid fix, and each particle presses the filter aid layer X by the action of the pump 34 described above. For this reason, the auxiliary filter layer X is compressed from its periphery, becoming even more dense as shown in FIG.
前記濾過助層Ｘの形成後、前記切換え弁２６を元の位置
に切換えて前記流出口２４を処、連槽に連通し、さらに
切換え弁８を切換えて、供給ロアを汚濁液槽に連通し、
前記濾過助層Ｘを透過させて、その濾過処理を施す。
すなわち、切換え弁８．２６を制御して、供給ロアを原
液タンクに連通し、流出口２４を処理済検測に連通して
、ポンプ３４を駆動すると、から処理液を流入すると、
供給ロアから通人孔６を経由してタンク本体１ａへ処理
液が流入する。この処理液は各濾過筒１７内へ、濾過助
層Ｘ及び濾材１９を透過して流入し、濾過作用を受けて
清浄液となる。前記濾過筒１７の濾材１９により濾過さ
れた清浄液は、流出口２４から流出管路２５を経て、処
理槽側に流出する。この濾過作業中にあって、濾過筒１
７は第４図イに示すように下方からの圧力により収縮状
態にある。After forming the filtration aid layer X, the switching valve 26 is switched to the original position to connect the outlet 24 to the connected tank, and the switching valve 8 is further switched to connect the supply lower to the polluted liquid tank. ,
The filtration process is performed by passing through the auxiliary filter layer X. That is, when the switching valve 8.26 is controlled to communicate the supply lower to the stock solution tank and the outlet 24 to the processed measurement, and to drive the pump 34, when the processing solution flows in,
The processing liquid flows from the supply lower through the through hole 6 into the tank body 1a. This treatment liquid flows into each filter cylinder 17 through the filter aid layer X and the filter medium 19, and undergoes a filtration action to become a cleaning liquid. The cleaning liquid filtered by the filter medium 19 of the filter cylinder 17 flows out from the outlet 24 through the outflow pipe 25 to the processing tank side. During this filtration work, the filter cylinder 1
7 is in a contracted state due to pressure from below, as shown in FIG. 4A.
前記濾過作業を連続すると、濾材１９の表面に濾塵層２
が形成され、濾材１９に目詰まりを生じ、タンク１内の
水圧が上昇する。この圧力上昇を公知の圧力検出手段に
より検知し、次の主逆洗工程に入る。
この主逆洗は濾過助材を消耗させることなく鑓過助ｆｆ
ｊｚを再生させるものであって、まずポンプ３４の作動
を停止し、切換え弁８を閉じて、液回収口３０に連通ず
る迂回管路３２の開閉弁３１を開放し、さらに切換え弁
２８を切換えて、エアー供給源２７からゲージ圧１〜２
Ｋｇ／ｃｒｎ’程度の加圧空気を流出口２４に数秒程
度連通させる０次に、切換え弁２８を閉鎖し、液回収口
３０を開放のまま数十秒静止させる。
これにより液溜２３及び濾過筒１７内の清浄液は、その
圧力により、濾材１９から排出される。
このとき、濾過筒１７の内圧は周囲の水圧よりも大きく
なるから、濾過処理中には収縮していたコイル１８は第
４図口のように上下方向へ伸張する。このため、前記濾
材１９の周面に形成された濾過助層Ｘは濾塵層２ととも
に、亀裂及び剥落を生じ、その洗浄がなされる。また濾
材１９から流出した液は液回収口３０から助材液槽３５
側へ排出される。
尚、ポンプ３４の作動を停止し、液供給を休止して放置
するだけでも、濾過助層Ｘへの加圧が解除されるため、
濾過助層Ｘが膨張し、その表面に付着した濾塵が自重に
より剥落する。
この主逆洗後に、液回収口３０を遮断し、前記した濾過
助層形成を行い、濾材１９の周面に再び濾過助層Ｘを形
成する。When the filtration work is continued, a layer of filter dust 2 is formed on the surface of the filter medium 19.
is formed, clogging the filter medium 19 and increasing the water pressure in the tank 1. This pressure increase is detected by a known pressure detection means, and the next main backwashing step begins. This main backwash can be carried out without wasting the filter aid.
First, the operation of the pump 34 is stopped, the switching valve 8 is closed, the on-off valve 31 of the detour pipe 32 communicating with the liquid recovery port 30 is opened, and the switching valve 28 is further switched. Then, a gauge pressure of 1 to 2 from the air supply source 27 is applied.
Pressurized air of approximately Kg/crn' is communicated to the outlet 24 for several seconds.Then, the switching valve 28 is closed and the liquid recovery port 30 is left open for several tens of seconds. As a result, the cleaning liquid in the liquid reservoir 23 and the filter tube 17 is discharged from the filter medium 19 due to the pressure thereof. At this time, the internal pressure of the filter tube 17 becomes greater than the surrounding water pressure, so the coil 18, which had been contracted during the filtration process, expands in the vertical direction as shown in FIG. Therefore, the auxiliary filter layer X formed on the circumferential surface of the filter medium 19 cracks and peels off together with the filter dust layer 2, which is then cleaned. In addition, the liquid flowing out from the filter medium 19 is passed through the liquid recovery port 30 to the auxiliary material liquid tank 35.
It is discharged to the side. In addition, the pressure on the filtration aid layer X is released by simply stopping the operation of the pump 34 and stopping the liquid supply and leaving it as it is.
The auxiliary filter layer X expands, and the filter dust adhering to its surface peels off under its own weight. After this main backwashing, the liquid recovery port 30 is shut off, and the above-described filtration aid layer formation is performed, and the filtration aid layer X is again formed on the circumferential surface of the filter medium 19.
前記主逆洗は濾過助材を消耗させることなく。
濾過助層Ｘの再生を生じさせるものであるが、塵芥は排
出されないまま循環するため、純粋な濾過助層Ｘを再生
することができない、そこで、適宜に次の副逆洗を行う
。
すなわち、ポンプ３４の作動を停止し、開閉弁８及び開
閉弁２６を閉じ、液回収口３０に連通する管路８の開閉
弁３１を開放し、さらに切換え弁２８を切換えて、エア
ー供給源２７からゲージ圧１〜２ Ｋｇ／ｃｍ″程度の
加圧空気を流出口２４に数秒程度連通させて後に、開閉
弁１１を切換えてドレイン口１０を開放する。
これにより液溜２３及びタンク本体ｌａ内の液は、その
圧力により、ドレイン口ｌＯから排出される。
この排出により前記濾過筒１７内の液面が取付は板１３
よりも下方にくると、加圧空気は管状本体２の液面にも
作用し、その液面降下を生ずる。
この場合には、第４図口のように液面降下とともに濾過
筒１７内から濾材１９を透過して圧力空気が液面側へ噴
出し、さらに液面の界面圧により、該液面が降下すると
濾過質は剥離作用を受ける。
このため、濾過筒１７の伸張及び清浄液の流出と相俟っ
て、ｉＩ！塵層Ｘの除去が効果的になされる。
その他、前記濾過筒１７は、第５図のように円筒形保持
枠５０の外周に、繊維材を巻回してなる肉厚の濾材５１
を設け、その内部を覆ってなるものでもよい、そしてか
かる構成にあっても、図のように濾材５１の周面に濾過
助層Ｘが形成され得る。
前記した切換え弁８，２８．２８及び開閉弁１１．３１
は、夫々電磁弁により構成することができ、６弁の開閉
制御を前記タンクｌ内に設けた圧力検出手段と関係させ
ることにより、前記各工程を全自動的に施すことできる
。
前記実施例において、各濾過筒１７内に、活性炭、ガラ
ス繊維、イオン交換樹脂等積々の材料を選択的に充填す
ることにより、濾過作用を、その処理液の特性に適合す
る最適なものとすることが可能となる。
〈発明の効果〉
本発明は、上述したように、濾材を周面に設けた濾過筒
を一〜複数個設け、前記濾材の周面に形成される濾過助
層Ｘの再生を、濾過筒内に圧力空気を連通ずることによ
り施したものであるから。
り濾過筒の再使用が可能となる。
２）清浄液の逆流量、逆流時間等を制御する必要がない
、このため濾過制御の自動化に最適となる。
３）濾過助材の消耗の無い主逆洗により、濾過助材の消
失を抑止できる。また、主逆洗と、純粋な濾過助層Ｘの
形成が可能な副逆洗を選択的に採用でき、その状況に適
合した逆洗処理を施すことができる。
４）使用する清浄液の単位重量当りの洗浄効果が高く、
清浄液の使用量が少なくて済む。
等の優れた効果がある。The main backwashing does not consume the filter aid. Although the filtration aid layer X is regenerated, since the dust is circulated without being discharged, a pure filtration aid layer X cannot be regenerated.Therefore, the next sub-backwash is performed as appropriate. That is, the operation of the pump 34 is stopped, the on-off valve 8 and the on-off valve 26 are closed, the on-off valve 31 of the pipe line 8 communicating with the liquid recovery port 30 is opened, and the switching valve 28 is switched to open the air supply source 27. After communicating pressurized air with a gauge pressure of 1 to 2 Kg/cm'' to the outlet 24 for several seconds, the on-off valve 11 is switched to open the drain port 10. As a result, the inside of the liquid reservoir 23 and the tank body la is opened. Due to the pressure, the liquid is discharged from the drain port lO. Due to this discharge, the liquid level in the filter cylinder 17 is lowered to the mounting plate 13.
When the pressure is lower than that, the pressurized air also acts on the liquid level in the tubular body 2, causing the liquid level to fall. In this case, as the liquid level falls, pressurized air passes through the filter medium 19 from inside the filter tube 17 to the liquid surface side, as shown in the opening in Figure 4, and the liquid level further falls due to the interfacial pressure of the liquid surface. The filter material then undergoes a peeling action. Therefore, in combination with the extension of the filter cylinder 17 and the outflow of the cleaning liquid, iI! The dust layer X is effectively removed. In addition, as shown in FIG.
It is also possible to provide a filter material 51 and cover the inside of the filter material 51. Even in such a configuration, a filter aid layer X can be formed on the circumferential surface of the filter material 51 as shown in the figure. The aforementioned switching valve 8, 28.28 and on-off valve 11.31
Each of the six valves can be constructed of a solenoid valve, and by associating the opening/closing control of the six valves with the pressure detection means provided in the tank I, each of the above steps can be performed fully automatically. In the embodiment described above, by selectively filling each filter cylinder 17 with a variety of materials such as activated carbon, glass fiber, and ion exchange resin, the filtration action can be optimized to match the characteristics of the processing liquid. It becomes possible to do so. <Effects of the Invention> As described above, the present invention provides one or more filter cylinders each having a filter medium on the circumferential surface, and regenerates the auxiliary filter layer X formed on the peripheral surface of the filter medium within the filter cylinder. This is because it is applied by communicating pressurized air to the This makes it possible to reuse the filter cylinder. 2) There is no need to control the backflow amount, backflow time, etc. of the cleaning liquid, making it ideal for automation of filtration control. 3) Main backwashing that does not consume the filter aid can prevent loss of the filter aid. Further, it is possible to selectively employ the main backwashing and the sub-backwashing capable of forming a pure filtration aid layer X, and it is possible to perform the backwashing process that is suitable for the situation. 4) High cleaning effect per unit weight of the cleaning liquid used.
The amount of cleaning fluid used can be reduced. It has excellent effects such as
添付図面は本発明の実施例を示し、第１図は縦断側面図
、第２，３図は濾過助層Ｘの形成を示す濾材１９の一部
拡大縦断側面図、第４図イ９口は濾過筒１７の伸縮作用
を示す拡大縦断側面図である。また第５図は濾過筒１７
の他の実施例を示す縦断側面図である。
ｌ；タンク ６：通入孔 ７；供給口 ８：切換え弁
ｌＯ；ドレイン口 ９；流入管路 １１；開閉弁 ２４
；流出口 １７；濾過筒 １８；コイル １９．濾材
２４；流出口 ２５；流出管路 ２６；切換え弁 ２７
；エアー供給源 ３０；液回収口 ３１；開閉弁 ３２
；迂回管路 ３４；ポンプ ３５；助材液槽 Ｘ；濾過
助層The attached drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional side view, FIGS. 2 and 3 are partially enlarged longitudinal sectional side views of the filter medium 19 showing the formation of the filter aid layer X, and FIG. FIG. 3 is an enlarged vertical cross-sectional side view showing the expansion and contraction action of the filter cylinder 17. In addition, Fig. 5 shows the filter cylinder 17.
It is a longitudinal side view which shows another Example. l: Tank 6: Inlet hole 7: Supply port 8: Switching valve
lO; drain port 9; inflow pipe 11; on-off valve 24
; Outlet 17; Filter tube 18; Coil 19. filter medium
24; Outlet 25; Outflow pipe 26; Switching valve 27
;Air supply source 30;Liquid recovery port 31;On-off valve 32
;Detour pipe line 34;Pump 35;Auxiliary material liquid tank X;filtration aid layer
Claims (1)
イン口を備えたタンク内に、外周の濾材面に繊維材、布
材等の分散材からなる濾過助材が被覆される濾過筒を一
〜複数個垂設して、その内部を前記流出口と連通すると
ともに、前記流出口と接続する流出管路に、切換え弁を
介して濾過筒内に加圧空気を作用させるエアー供給源を
接続し、前記供給口と接続する流入管路に、切換え弁を
介して助材液槽の出口を接続し、さらに前記液回収口を
開閉弁を備えた迂回管路により助材液槽内と連通したこ
とを特徴とする濾過装置。A filtration system in which a tank is equipped with a supply port for the liquid to be treated, an outlet for the cleaning liquid, a liquid recovery port, and a drain port, and the outer surface of the filter medium is coated with a filter aid made of a dispersion material such as fiber material or cloth material. Air supply in which one or more cylinders are installed vertically, the inside of which communicates with the outlet, and pressurized air is applied to the inside of the filtration cylinder via a switching valve to an outlet pipe connected to the outlet. The outlet of the auxiliary material liquid tank is connected to the inflow pipe connected to the supply port via a switching valve, and the auxiliary material liquid tank is connected to the supply port via a detour pipe equipped with an on-off valve. A filtration device characterized by communicating with the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62274900A JP2607101B2 (en) | 1987-10-30 | 1987-10-30 | Filtration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62274900A JP2607101B2 (en) | 1987-10-30 | 1987-10-30 | Filtration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01119317A true JPH01119317A (en) | 1989-05-11 |
| JP2607101B2 JP2607101B2 (en) | 1997-05-07 |
Family
ID=17548091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62274900A Expired - Lifetime JP2607101B2 (en) | 1987-10-30 | 1987-10-30 | Filtration device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2607101B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0342004A (en) * | 1989-07-10 | 1991-02-22 | Ebara Infilco Co Ltd | Filter concentrator |
| US5441633A (en) * | 1992-09-25 | 1995-08-15 | Schewitz; Jonathan | Liquid filter using filtration aid |
| JP2001276516A (en) * | 2000-03-30 | 2001-10-09 | Atom Engineering:Kk | Back washing type spring filtration device |
| WO2007122918A1 (en) * | 2006-03-27 | 2007-11-01 | Toray Industries, Inc. | Water treatment apparatus |
| JP2011110457A (en) * | 2009-11-25 | 2011-06-09 | Ihi Corp | Method of operating filter equipment and filter equipment |
| JP2014147861A (en) * | 2013-01-31 | 2014-08-21 | Ryuki Engineering:Kk | Filtration device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039434A (en) * | 1983-08-12 | 1985-03-01 | 三菱レイヨン株式会社 | Production of fancy yarn |
-
1987
- 1987-10-30 JP JP62274900A patent/JP2607101B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039434A (en) * | 1983-08-12 | 1985-03-01 | 三菱レイヨン株式会社 | Production of fancy yarn |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0342004A (en) * | 1989-07-10 | 1991-02-22 | Ebara Infilco Co Ltd | Filter concentrator |
| US5441633A (en) * | 1992-09-25 | 1995-08-15 | Schewitz; Jonathan | Liquid filter using filtration aid |
| JP2001276516A (en) * | 2000-03-30 | 2001-10-09 | Atom Engineering:Kk | Back washing type spring filtration device |
| WO2007122918A1 (en) * | 2006-03-27 | 2007-11-01 | Toray Industries, Inc. | Water treatment apparatus |
| JP2011110457A (en) * | 2009-11-25 | 2011-06-09 | Ihi Corp | Method of operating filter equipment and filter equipment |
| JP2014147861A (en) * | 2013-01-31 | 2014-08-21 | Ryuki Engineering:Kk | Filtration device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2607101B2 (en) | 1997-05-07 |
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