JPH06306A - Magnetic filter - Google Patents
Magnetic filterInfo
- Publication number
- JPH06306A JPH06306A JP19739392A JP19739392A JPH06306A JP H06306 A JPH06306 A JP H06306A JP 19739392 A JP19739392 A JP 19739392A JP 19739392 A JP19739392 A JP 19739392A JP H06306 A JPH06306 A JP H06306A
- Authority
- JP
- Japan
- Prior art keywords
- inner tank
- packed layer
- filter medium
- washing liquid
- permanent magnet
- 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
Links
Landscapes
- Filtration Of Liquid (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、ワイヤ放電加工機の循
環水等の液体中に懸濁された磁性粒子を除去するための
磁気フィルタに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic filter for removing magnetic particles suspended in a liquid such as circulating water of a wire electric discharge machine.
【0002】[0002]
【従来の技術】従来、この種の装置としては、例えば、
図2に示すようなものがある。これを図について説明す
ると液入口aおよび液出口bを有する容器cに内管dの
一部を液密に貫入させて設け、該内管dの前記貫入部の
端部を閉止せしめ、また、該内管d内を除く前記容器c
内に強磁性材料により形成されたフィルタメディアeを
充填し、前記内管d内に永久磁石fを移動自在に収容し
た構成である。処理液は液入口aから容器cに流入しフ
ィルタメディアeの充填層を通って流れ液出口bから流
出する。フィルタメディアeは、永久磁石fにより磁化
され処理液中の磁性粒子を吸引、捕捉する。次に、この
ように捕捉した磁性粒子を取除く場合は、前記液入口a
および液出口bを夫々図示しない洗浄液通路にバルブ等
により切替え、また、永久磁石fをフィルタメディアe
の充填層の位置より下に移動させフィルタメディアeの
磁化を消失させる。これにより捕捉されていた磁性粒子
は洗浄液通路に運ばれ、取除かれる。ところが、この従
来の技術においては次のような欠点がある。即ち、例え
ばワイヤ放電加工機の循環水中に懸濁された磁性粒子の
ように粒径が細かく磁性が微弱な磁性粒子を吸引し捕捉
するためにはフィルタメディア充填層内の処理液流速を
低くする必要があり、他方、フィルタメディアに捕捉さ
れた磁性粒子を取除く際の洗浄液流速には最低限度があ
ってその流速は前記処理液流速の十倍程度にする必要が
ある。そして、処理液と洗浄液の流れ方向が同じで同一
断面積を通るため、処埋液流量に比べて洗浄液流量が十
倍程度になって洗浄装置が大規模になり不都合である。2. Description of the Related Art Conventionally, as this type of device, for example,
There is one as shown in FIG. This will be described with reference to the drawings. A part of the inner pipe d is provided in a container c having a liquid inlet a and a liquid outlet b in a liquid-tight manner, and the end of the penetrating portion of the inner pipe d is closed. The container c excluding the inside of the inner pipe d
A filter medium e made of a ferromagnetic material is filled inside, and a permanent magnet f is movably accommodated in the inner tube d. The processing liquid flows into the container c from the liquid inlet a, flows through the packed layer of the filter media e, and flows out from the liquid outlet b. The filter medium e is magnetized by the permanent magnet f and attracts and captures magnetic particles in the treatment liquid. Next, when removing the magnetic particles thus captured, the liquid inlet a
The liquid outlet b and the liquid outlet b are switched to a cleaning liquid passage not shown by a valve or the like, and the permanent magnet f is connected to the filter medium e.
To move the magnetism of the filter medium e to disappear. The magnetic particles thus captured are carried to the cleaning liquid passage and removed. However, this conventional technique has the following drawbacks. That is, for example, in order to attract and capture magnetic particles having a small particle size and weak magnetism, such as magnetic particles suspended in circulating water of a wire electric discharge machine, the flow rate of the treatment liquid in the filter media packed layer is lowered. On the other hand, the flow rate of the cleaning solution for removing the magnetic particles captured by the filter medium has a minimum limit, and the flow rate needs to be about ten times the flow rate of the processing solution. Further, since the flow directions of the treatment liquid and the cleaning liquid are the same and pass through the same cross-sectional area, the flow rate of the cleaning liquid is about ten times as large as that of the embedding liquid, which is disadvantageous in that the cleaning apparatus becomes large-scale.
【0003】[0003]
【発明が解決しようとする課題】本発明が解決しようと
する問題点は、処理液流量に比べて洗浄液流量が非常に
大きいという点である。The problem to be solved by the present invention is that the flow rate of the cleaning liquid is much larger than the flow rate of the processing liquid.
【0004】[0004]
【課題を解決するための手段】前記の課題を解決するた
め本発明による磁気フィルタは、洗浄液をフィルタメデ
イア充填層の上部空間に設けた洗浄液噴射ノズルから下
向きに噴射させ、そして、洗浄液噴射ノズルを旋回さ
せ、フィルタメデイア充填層全体を逐次撹拌流動化させ
て洗浄するようにしたものである。そして、フィルタメ
デイアを磁化するための永久磁石は平板状永久磁石を用
い、その磁極面がフィルタメデイア充填層下面と対面す
るようにしてフィルタメデイア充填層の下方に配置し、
フィルタメデイアが充填される空間には洗浄の妨げとな
る構造物は一切設けないようにしたものである。即ち、
本発明による磁気フィルタは、液入口を有し上面が開放
で底が金網で構成された内槽と、液出口を有し上面が開
放で前記内槽を収容する外槽と、強磁性材料により形成
され前記内槽の内部下部空間に充填された粒状のフィル
タメディアと、前記内槽の上方から該内槽の内部上部空
間に挿入され先端が前記内槽の縦中心線の回りで旋回自
在に設けられた洗浄液噴射ノズルと、前記フィルタメデ
ィア充填層の表面位置に設けられ前記内槽の縦中心線を
回転軸中心として回転自在に設けられた均し棒と、前記
洗浄液噴射ノズルおよび前記均し棒を旋回させるための
駆動機構と、前記外槽の下方に昇降自在に設けられた平
板状永久磁石と、該平板状永久磁石を昇降させるための
駆動機構からなる構成としているものである。In order to solve the above-mentioned problems, a magnetic filter according to the present invention is configured such that a cleaning liquid is sprayed downward from a cleaning liquid spray nozzle provided in an upper space of a filter media filling layer, and a cleaning liquid spray nozzle is provided. The filter medium is swirled, and the whole of the packed bed of filter media is sequentially stirred and fluidized for cleaning. The permanent magnet for magnetizing the filter medium is a flat permanent magnet, and is arranged below the filter media filling layer so that its magnetic pole surface faces the lower surface of the filter media filling layer.
In the space filled with the filter medium, no structure that hinders cleaning is provided. That is,
The magnetic filter according to the present invention comprises an inner tank having a liquid inlet and having an open top and a bottom made of wire mesh, an outer tank having a liquid outlet and having an open top and containing the inner tank, and a ferromagnetic material. A granular filter medium formed and filled in the inner lower space of the inner tank, and a tip inserted into the inner upper space of the inner tank from above the inner tank so that the tip is rotatable around the vertical center line of the inner tank. A cleaning liquid injection nozzle provided, a leveling bar provided at a surface position of the filter media filling layer and rotatably provided about a longitudinal center line of the inner tank as a rotation axis center, the cleaning liquid injection nozzle and the leveling device. The drive mechanism for rotating the rod, a flat plate-like permanent magnet provided below the outer tank so as to be able to move up and down, and a drive mechanism for moving up and down the flat plate-like permanent magnet are configured.
【0005】[0005]
【作用】▲ろ▼過処理時において平板状永久磁石はフィ
ルタメディア層の直下位置に上がっていてフィルタメデ
ィアは磁化されている。磁性粒子を懸濁している処理液
は、液入口から内槽の内部上部空間に入り、フィルタメ
ディア充填層内を流れ、内槽の底の金網を通り、そし
て、この金網と外槽の底板の間の隙間を通り、内槽側板
と外槽側板の間に形成された環状流路を経て一の液出口
から出る。懸濁磁性粒子は処理液がフィルタメディア充
填層内を流れる間に平板状永久磁石により磁化されたフ
ィルタメディアによって吸引、捕捉される。捕捉された
磁性粒子を取除く場合は処理液の流入を止めた後、平板
状永久磁石を下げてフィルタメディアの磁化を消滅さ
せ、洗浄液噴射ノズルから洗浄液を噴射すると共に洗浄
液噴射ノズルを旋回させてフィルタメディア充填層全体
を逐次撹拌流動化させる。捕捉されていた磁性粒子は磁
気を失ったフィルタメディアから離れて洗浄液と共にフ
ィルタメディア充填層内を流れ、内槽の底の金網を通
り、そして、この金網と外槽の底板の間の隙間を通り、
内槽側板と外槽側板の間に形成された環状流路を経て二
の液出口から出る。洗浄液の噴射によって生じたフィル
タメディア充填層表面の凹凸は、洗浄液噴射停止後、均
し棒の旋回により均される。[Operation] (3) During overtreatment, the flat plate-shaped permanent magnet is raised to the position directly below the filter media layer, and the filter media is magnetized. The treatment liquid in which the magnetic particles are suspended enters the inner upper space of the inner tank from the liquid inlet, flows in the filter media packed layer, passes through the wire net at the bottom of the inner tank, and then the wire net and the bottom plate of the outer tank. The liquid passes through the gap between the inner tank side plate and the outer tank side plate, and exits from one liquid outlet through an annular flow path formed between the inner tank side plate and the outer tank side plate. The suspended magnetic particles are attracted and captured by the filter medium magnetized by the flat plate-shaped permanent magnet while the treatment liquid flows in the filter medium packed layer. When removing the captured magnetic particles, stop the flow of the processing liquid, lower the flat permanent magnet to extinguish the magnetization of the filter media, spray the cleaning liquid from the cleaning liquid jet nozzle, and swirl the cleaning liquid jet nozzle. The whole packed bed of filter media is sequentially fluidized with stirring. The trapped magnetic particles flow away from the filter media that lost magnetism in the filter media packed layer together with the cleaning liquid, pass through the wire mesh at the bottom of the inner tank, and pass through the gap between the wire mesh and the bottom plate of the outer tank. ,
It exits from the second liquid outlet via an annular flow path formed between the inner tank side plate and the outer tank side plate. The irregularities on the surface of the filter media filling layer caused by the spray of the cleaning liquid are leveled by the turning of the leveling bar after the spraying of the cleaning liquid is stopped.
【0006】[0006]
【実施例】本発明の実施例を示す図1において、内槽1
は、円筒状の内槽側板2の部分に液入口3を有し上面は
開放で底は金網4で構成されている。外槽5は、円筒状
の外槽側板6の部分に一の液出口7および二の液出口8
を有し上面が開放の容器である。前記内槽1は、スペー
サ9により前記内槽1の底の金網4と前記外槽5の底板
10との間の隙間を保って前記外槽5の中に同心状に収
容され、前記内槽側板2と前記外槽側板6の間に環状流
路を形成する。図1中、11は強磁性材料により形成さ
れた粒状のフィルタメディアである。洗浄液噴射ノズル
12は、好適にはビニールホースで構成される。旋回駆
動機構13は、前記洗浄液噴射ノズル12の先端および
均し棒14を同時に旋回するためのもので、ギヤードモ
ータ22、歯車15、軸16等によって構成される。平
板状永久磁石17は、前記外槽5の下方に設けられ、ギ
ヤードモータ(図示せず)、スクリュウ18、チェイン
19、スプロケット20等によって構成される昇降駆動
機構21により昇降するようになっている。図1中、2
3は、前記ギヤードモータ22および前記洗浄液噴射ノ
ズル12の支持台を示す。また、24は、前記平板状永
久磁石17および前記昇降駆動機構21を収容するケー
スを示す。1 shows an embodiment of the present invention, an inner tank 1
Has a liquid inlet 3 in a cylindrical inner tank side plate 2 and has an open upper surface and a wire mesh 4 at the bottom. The outer tank 5 has one liquid outlet 7 and a second liquid outlet 8 in the cylindrical outer tank side plate 6.
Is a container having an open upper surface. The inner tank 1 is accommodated concentrically in the outer tank 5 with a space between the wire net 4 at the bottom of the inner tank 1 and the bottom plate 10 of the outer tank 5 held by a spacer 9. An annular flow path is formed between the side plate 2 and the outer tank side plate 6. In FIG. 1, 11 is a granular filter medium formed of a ferromagnetic material. The cleaning liquid injection nozzle 12 is preferably composed of a vinyl hose. The swivel drive mechanism 13 is for swiveling the tip of the cleaning liquid injection nozzle 12 and the leveling rod 14 at the same time, and is composed of a geared motor 22, a gear 15, a shaft 16 and the like. The flat plate-shaped permanent magnet 17 is provided below the outer tub 5, and is moved up and down by an up-and-down drive mechanism 21 including a geared motor (not shown), a screw 18, a chain 19, a sprocket 20 and the like. . 1 in FIG.
Reference numeral 3 denotes a support for the geared motor 22 and the cleaning liquid jet nozzle 12. Reference numeral 24 denotes a case that houses the flat plate-shaped permanent magnet 17 and the elevating drive mechanism 21.
【0007】[0007]
【発明の効果】以上の説明で明らかなように本発明の磁
気フィルタは洗浄液をフィルタメデイア充填層の上部空
間に設けた洗浄液噴射ノズルから下向きに噴射させ、そ
して、洗浄液噴射ノズルを旋回させ、フィルタメデイア
充填層全体を逐次撹拌流動化させて洗浄するようにした
ので洗浄液流量を処理液流量に比べて少なくすることが
可能となる。また、フィルタメデイアを磁化するための
永久磁石は平板状永久磁石を用い、その磁極面がフィル
タメデイア充填層下面と対面するようにしてフィルタメ
デイア充填層の下方に配置し、フィルタメデイアが充填
される空間には洗浄の妨げとなる構造物は一切設けない
ようにしたのでフィルタメデイア充填層全体を容易に満
遍なく洗浄することができる。As is apparent from the above description, in the magnetic filter of the present invention, the cleaning liquid is jetted downward from the cleaning liquid jet nozzle provided in the upper space of the filter media filling layer, and the cleaning liquid jet nozzle is swirled to filter the filter. Since the entire media-filled bed is sequentially stirred and fluidized for cleaning, the cleaning liquid flow rate can be made smaller than the processing liquid flow rate. Further, a flat permanent magnet is used as a permanent magnet for magnetizing the filter medium, and the permanent magnet is arranged below the filter medium filling layer so that its magnetic pole surface faces the lower surface of the filter medium filling layer, and the filter medium is filled with the filter medium. Since no structure that hinders cleaning is provided in the space, the entire filter media filling layer can be easily and uniformly cleaned.
【図1】本発明による磁気フィルタの実施例を示す図で
ある。FIG. 1 is a diagram showing an embodiment of a magnetic filter according to the present invention.
【図2】従来の磁気フィルタの概略図である。FIG. 2 is a schematic view of a conventional magnetic filter.
1 内槽 12 洗浄液噴
射ノズル 3 液入口 13 旋回駆動
機構 5 外槽 14 均し棒 7 一の液出口 17 平板状永
久磁石 8 二の液出口 21 昇降駆動
機構 11 フィルタメディア1 Inner Tank 12 Cleaning Liquid Injection Nozzle 3 Liquid Inlet 13 Swing Drive Mechanism 5 Outer Tank 14 Leveling Bar 7 One Liquid Outlet 17 Flat Permanent Magnet 8 Two Liquid Outlet 21 Lifting Drive Mechanism 11 Filter Media
Claims (1)
された内槽と、液出口を有し上面が開放で前記内槽を収
容する外槽と、強磁性材料により形成され前記内槽の内
部下部空間に充填された粒状のフィルタメディアと、前
記内槽の上方から該内槽の内部上部空開に挿入され先端
が前記内槽の縦中心線の回りで旋回自在に設けられた洗
浄液噴射ノズルと、前記フィルタメディア充填層の表面
位置に設けられ前記内槽の縦中心線を回転軸中心として
回転自在に設けられた均し棒と、前記洗浄液噴射ノズル
および前記均し棒を旋回させるための駆動機構と、前記
外槽の下方に昇降自在に設けられた平板状永久磁石と、
該平板状永久磁石を昇降させるための駆動機構により構
成されたことを特徴とする磁気フィルタ。1. An inner tank having a liquid inlet and having an open upper surface and a bottom made of wire mesh; an outer tank having a liquid outlet and having an open upper surface for accommodating the inner tank; A granular filter medium filled in the inner lower space of the inner tank, and a tip inserted into the inner upper empty space of the inner tank from above the inner tank so as to be rotatable about a vertical center line of the inner tank. Cleaning liquid injection nozzle, a leveling bar provided at the surface position of the filter media filling layer and rotatably provided about the longitudinal center line of the inner tank as a rotation axis center, the cleaning liquid injection nozzle and the leveling bar A drive mechanism for turning the plate, and a flat plate-like permanent magnet provided below the outer tank so as to be able to move up and down,
A magnetic filter comprising a drive mechanism for moving up and down the flat permanent magnet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19739392A JPH06306A (en) | 1992-06-15 | 1992-06-15 | Magnetic filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19739392A JPH06306A (en) | 1992-06-15 | 1992-06-15 | Magnetic filter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06306A true JPH06306A (en) | 1994-01-11 |
Family
ID=16373762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19739392A Pending JPH06306A (en) | 1992-06-15 | 1992-06-15 | Magnetic filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06306A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010184180A (en) * | 2009-02-10 | 2010-08-26 | Toyota Motor Corp | Method of cleaning cylinder head |
CN103191831A (en) * | 2013-04-17 | 2013-07-10 | 厦门欣意盛非金属材料科技有限公司 | Intermittent distribution flushing device for multiple magnetic separators |
-
1992
- 1992-06-15 JP JP19739392A patent/JPH06306A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010184180A (en) * | 2009-02-10 | 2010-08-26 | Toyota Motor Corp | Method of cleaning cylinder head |
CN103191831A (en) * | 2013-04-17 | 2013-07-10 | 厦门欣意盛非金属材料科技有限公司 | Intermittent distribution flushing device for multiple magnetic separators |
CN103191831B (en) * | 2013-04-17 | 2016-06-29 | 厦门欣意盛非金属材料科技有限公司 | Batch (-type) distribution flusher between multiple stage magnetic separator |
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