JP3241462B2 - Method and apparatus for magnetically coagulating impurities in liquid - Google Patents
Method and apparatus for magnetically coagulating impurities in liquidInfo
- Publication number
- JP3241462B2 JP3241462B2 JP30627192A JP30627192A JP3241462B2 JP 3241462 B2 JP3241462 B2 JP 3241462B2 JP 30627192 A JP30627192 A JP 30627192A JP 30627192 A JP30627192 A JP 30627192A JP 3241462 B2 JP3241462 B2 JP 3241462B2
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- Prior art keywords
- magnetic
- liquid
- magnetically
- impurities
- permanent magnet
- Prior art date
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、液体中に含まれる磁性
懸濁物や非磁性懸濁物（コロイド物）等の不純物を磁気
凝集させて、永久磁石に磁気吸着する液体中の不純物の
磁気凝集処理方法または装置に関するもので、たとえば
放電加工機において放電加工する際に使用する油性また
は水性加工液に含まれる、切粉、金属粉等の磁性懸濁物
やカーボン、泥等の非磁性懸濁物等の不純物を、これら
の加工液より除去したり、また、工作機械によって鋳造
鋳物を切削加工、研削加工等をする際に使用する油性ま
たは水性加工液に含まれる同様の不純物を、これらの加
工液より除去したり、あるいは、その他の液体中に含ま
れる磁性懸濁物や非磁性懸濁物等の不純物を液体より除
去するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for magnetically aggregating impurities such as magnetic suspensions and non-magnetic suspensions (colloids) contained in a liquid, and to remove impurities in the liquid magnetically adsorbed to a permanent magnet. The present invention relates to a magnetic coagulation treatment method or apparatus, for example, a magnetic suspension such as cutting powder and metal powder, and a non-magnetic material such as carbon and mud contained in an oily or aqueous machining fluid used for electric discharge machining in an electric discharge machine. Impurities such as suspensions are removed from these working fluids, and the same impurities contained in oily or aqueous working fluids used when cutting castings, grinding, etc. with machine tools, It is to remove impurities from these liquids such as magnetic suspensions and non-magnetic suspensions contained in other liquids.
【０００２】[0002]
【従来の技術】従来、液体中に含まれる懸濁物（コロイ
ド物）等の微細な不純物の除去するについては、プレコ
ートフィルターまたは濾紙や濾布を用いたフィルター等
を用いて不純物を除去する方法があるが、これらの方法
においては、直ぐに微細な不純物が付着、蓄積して通液
抵抗が高くなり、不純物の除去処理が短時間で不可能に
なるために、不純物の除去処理を中断して、そのつどフ
ィルターのプレコート層を再形成したり、濾紙や濾布を
交換しなければならない欠点があった。2. Description of the Related Art Conventionally, for removing fine impurities such as suspensions (colloids) contained in a liquid, a method of removing impurities using a precoat filter or a filter using filter paper or filter cloth is known. However, in these methods, minute impurities adhere and accumulate immediately, increasing the liquid permeation resistance, and it becomes impossible to remove the impurities in a short time. In each case, the precoat layer of the filter must be reformed or the filter paper or filter cloth must be replaced.
【０００３】またスクリーンやストレーナ等を使用して
不純物を除去する方法もあるが、直ぐに微細な不純物に
よって目詰まりして通液抵抗が高くなり、不純物の除去
処理が短時間で不可能になる点には変わりなく、不純物
の除去処理を中断し、そのつどスクリーンやストレーナ
等の洗浄を行う必要があるなどの欠点があった。There is also a method of removing impurities by using a screen or a strainer. However, the impurities are immediately clogged with fine impurities and the liquid flow resistance is increased, making it impossible to remove impurities in a short time. However, there is a drawback that the process of removing impurities must be interrupted and the screen and the strainer must be washed each time.
【０００４】このように、従来方法においては、不純物
の除去処理効率が悪くなるという欠陥があり、さらにス
クリーンやパンチングメタル等の洗浄は面倒で、時間と
手間がかかり、特に濾過装置の解体を伴う場合には、長
期間にわたって濾過処理を中止することになる外、不純
物除去装置として、イニシャルコストが高くなるととも
にランニングコストがかかるなど種々の問題があった。As described above, in the conventional method, there is a defect that the efficiency of the treatment for removing impurities is deteriorated, and furthermore, cleaning of the screen, punching metal, etc. is troublesome, takes time and effort, and particularly involves disassembly of the filtration device. In such a case, there are various problems such as the fact that the filtration process is stopped for a long period of time and the initial cost and running cost of the impurity removing device are increased.
【０００５】さらに、磁石を使用して不純物を磁気吸着
して除去する方法もあるが、磁石としてフェライト製の
永久磁石を使用するものがほとんどで、磁力として１０
００〜４０００ガウスを有するに過ぎず、このような永
久磁石による液体中の不純物の除去は、液体中の磁性懸
濁物を除去することが主目的であり、非磁性懸濁物や非
磁性コロイド物の一部が磁性懸濁物に抱き込まれる状態
で除去されることはあるが、非磁性懸濁物、コロイド物
の大部分は、除去されずに液体中に残留する欠点があ
り、非磁性懸濁物、コロイド物は、別途の高価に精密濾
過装置等で除去処理する必要があった。Further, there is a method of magnetically adsorbing and removing impurities using a magnet. However, most magnets use a permanent magnet made of ferrite as a magnet.
The removal of impurities in a liquid by such a permanent magnet is mainly performed to remove a magnetic suspension in the liquid, and a non-magnetic suspension or a non-magnetic colloid is used. Although some of the substances may be removed while being entrapped in the magnetic suspension, most of the non-magnetic suspensions and colloids have the disadvantage that they remain in the liquid without being removed. Magnetic suspensions and colloids had to be removed separately and expensively using a microfiltration device or the like.
【０００６】前述したように、液体中の磁性懸濁物、特
に非磁性懸濁物や非磁性コロイド物は難処理物で、汚く
て、腐敗して悪臭を発生するものが多く、場合による
と、なにも処理をせずに、液体とともに廃棄処分をする
以外に方法がない場合もあり、資源としての再活用でき
ないばかりか、不純物の廃棄量の増大、広大な廃棄場所
の確保等の廃棄処理費用がかかりすぎる欠点があり、さ
らに、これらの廃液の処理が不充分であると、廃棄物の
腐敗、悪臭の発生等の職場環境が悪化する問題もあっ
た。As described above, magnetic suspensions in liquids, especially non-magnetic suspensions and non-magnetic colloids, are difficult-to-treat, and are often dirty, spoiled and give off odors. In some cases, there is no other way than to dispose of the liquid together with the liquid without any treatment, and it is not only possible to reuse it as a resource, but also to increase the amount of impurities to be discarded and to secure a vast disposal place. There is a disadvantage that the treatment cost is too high, and furthermore, if the treatment of these waste liquids is insufficient, there is also a problem that the work environment is deteriorated, such as spoilage of waste and generation of offensive odor.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、液体中の磁
性懸濁物、非磁性懸濁物（コロイド物）等の不純物のす
べてを、不純物の除去処理を中断してフィルターの交
換、洗浄等を行うことなく、長時間にわたって、効率よ
く、イニシャルコスト、ランニングコストを低減して、
除去するとともに、除去した不純物を外部に排出するこ
とを目的とするものである。DISCLOSURE OF THE INVENTION The present invention provides a method for removing and replacing all impurities such as magnetic suspensions and non-magnetic suspensions (colloids) in a liquid by interrupting the removal of the impurities. Efficiently reduce initial cost and running cost for a long time without performing
It is intended to remove the impurities and discharge the removed impurities to the outside.
【０００８】また、本発明は、従来より処理が難して費
用をかけて廃棄していた磁性懸濁物、非磁性懸濁物等の
不純物を含む液体を、不純物除去処理をし、その処理液
（放電加工液、クーラント液等）を再使用し、資源とし
ての再活用することを目的とする。[0008] Further, the present invention provides a liquid containing impurities such as magnetic suspensions and non-magnetic suspensions which have been conventionally disposed of at high cost and which have been disposed of at a high cost, by subjecting them to impurity removal treatment. (Electric discharge machining fluid, coolant fluid, etc.) are to be reused and reused as resources.
【０００９】さらに、本発明は、液体中の不純物を液体
より分離、脱液して収集することによって、不純物の廃
棄量を大幅に減量化し、廃棄場所を取らずに、廃棄処理
費用を節減するとともに、さらに廃棄物の腐敗、悪臭を
防いで職場環境を良好に保つことを目的とする。Further, according to the present invention, the amount of impurities in the liquid is separated and removed from the liquid and collected, thereby greatly reducing the amount of impurities to be discarded, eliminating the need for a disposal place, and reducing the disposal cost. At the same time, the purpose is to keep the work environment good by preventing the rot and odor of waste.
【００１０】[0010]
【課題を解決するための手段】本発明は、前述した目的
を達成するために、磁性懸濁物や非磁性懸濁物（コロイ
ド物）等の不純物を含む液体より不純物を永久磁石に磁
気吸着するについて、１００００ガウス以上の磁力を持
つ複数の永久磁石を、互いの磁極が対極になり、かつ、
互いの磁界が作用し合う間隔で対向するように配置し、
これらの永久磁石に不純物を含む液体を０．０５〜６０
分間接触させ、液体中の磁性懸濁物を核として非磁性懸
濁物を磁気凝集させ、これを永久磁石に磁気吸着してバ
ッチ式に液体中の不純物を除去する磁気凝集処理方法に
関するものである。SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention magnetically absorbs impurities from a liquid containing impurities such as a magnetic suspension or a non-magnetic suspension (colloidal substance) to a permanent magnet. For a plurality of permanent magnets having a magnetic force of 10,000 gauss or more, the magnetic poles of the permanent magnets become opposite poles, and
They are arranged so that they oppose each other at an interval where the magnetic fields act on each other,
A liquid containing impurities is added to these permanent magnets in an amount of 0.05 to 60.
The present invention relates to a magnetic coagulation treatment method of magnetically coagulating a non-magnetic suspension with a magnetic suspension in a liquid as a nucleus, and magnetically adsorbing the magnetic suspension to a permanent magnet to remove impurities in the liquid in a batch manner. is there.
【００１１】さらに、本発明は、液体中の磁性懸濁物や
非磁性懸濁物等の不純物を永久磁石に磁気吸着するにつ
いて、１００００ガウス以上の磁力を持つ複数の永久磁
石を、互いの磁極が対極になり、かつ、互いの磁界が作
用し合う間隔で対向するように配置し、これらの永久磁
石に不純物を含む液体を、０．０５〜０．５ｍ／秒の流
速で通液させて、液体中の磁性懸濁物を核として非磁性
懸濁物を磁気凝集させて、永久磁石に磁気吸着して液体
中の不純物を連続的に除去する磁気凝集処理方法に関す
るものである。Further, the present invention relates to a method for magnetically adsorbing impurities such as magnetic suspensions and non-magnetic suspensions in a liquid to a permanent magnet, the method comprising a plurality of permanent magnets having a magnetic force of 10,000 gauss or more.
The stones are opposed by their magnetic poles and their magnetic fields
Arranged so as to face at intervals each other use, the liquid containing impurities to these permanent magnets, by at a flow rate of 0.05-0.5 M / sec, a magnetic suspension in a liquid as nuclei The present invention relates to a magnetic coagulation treatment method in which a non-magnetic suspension is magnetically coagulated and magnetically adsorbed to a permanent magnet to continuously remove impurities in a liquid.
【００１２】本発明は、原液流入管と処理液流出管を連
通した磁気凝集処理槽内に付設した回転軸の両端に回転
板を固定し、この二枚の回転板の相対する側面の全面
に、１００００ガウス以上の磁力を持つ複数の永久磁石
を、互いの磁極が対極になり、かつ、互いの磁界が作用
し合う間隔で対向するように配置し、液体中の磁性懸濁
物を核として非磁性懸濁物を磁気凝集させて永久磁石に
磁気吸着する磁場を形成し、さらに、この二枚の回転板
に取り付けた永久磁石の表面に近接させて、永久磁石の
表面に付着した磁気凝集物を剥離するスクレパーを磁気
凝集処理槽内に付設した液体中の不純物の磁気凝集処理
装置に関するものである。According to the present invention, a rotating plate is fixed to both ends of a rotating shaft provided in a magnetic flocculation treatment tank in which a stock solution inflow pipe and a processing solution outflow pipe communicate with each other. Multiple permanent magnets with a magnetic force of 10,000 Gauss or more
The magnetic poles of each other become opposite poles, and the magnetic fields of each other act.
They are arranged so as to face each other at an interval, and the magnetic suspension in the liquid is used as a nucleus to magnetically coagulate the non-magnetic suspension to form a magnetic field for magnetic adsorption to the permanent magnet. The present invention relates to a magnetic coagulation treatment apparatus for impurities in a liquid, which is provided in a magnetic coagulation treatment tank with a scraper that comes close to the surface of the permanent magnet attached to the permanent magnet and peels off the magnetic cohesion attached to the surface of the permanent magnet.
【００１３】本発明は、前述した二枚の回転板のうち、
一枚の回転板の側面の全面に、間隔を置いて取り付けた
複数個の永久磁石の磁極を、Ｎ、Ｎ、Ｓ、Ｓ、Ｎ、Ｎ、
Ｓ、Ｓの順に配列して配置し、さらに、他の一枚の回転
板の側面の全面に、間隔を置いて取り付けた複数個の永
久磁石の磁極を、Ｓ、Ｓ、Ｎ、Ｎ、Ｓ、Ｓ、Ｎ、Ｎの順
に配列して配置し、二枚の回転板の相対する各永久磁石
の磁極を対極に配置することによって、相乗的に一段と
磁気凝集処理能力を高めた磁場を形成した液体中の不純
物の磁気凝集処理装置に関するものである。According to the present invention, of the two rotating plates described above,
The magnetic poles of a plurality of permanent magnets attached at intervals over the entire side surface of one rotating plate are N, N, S, S, N, N,
The magnetic poles of a plurality of permanent magnets, which are arranged and arranged in the order of S and S, and are attached at intervals over the entire side surface of another rotating plate, are S, S, N, N and S. , S, N, and N were arranged in this order, and the magnetic poles of the respective permanent magnets facing each other of the two rotating plates were arranged at the counter electrode, thereby forming a magnetic field having a synergistically enhanced magnetic coagulation processing ability. The present invention relates to an apparatus for magnetically coagulating impurities in a liquid.
【００１４】[0014]
【作用】以上述べたような、液体中の不純物の磁気凝集
処理方法によって、液体中の磁性懸濁物や非磁性懸濁物
（コロイド物）等の不純物を永久磁石に磁気吸着処理を
行うと、磁気による不純物の凝集反応および凝集吸着
に、磁性懸濁物が介在するため、磁性懸濁物が核となっ
て非磁性懸濁物を強固に磁気凝集することになり、多量
の非磁性懸濁物が磁性懸濁物を核として確りと包込んだ
状態の磁気凝集物として、永久磁石に磁気吸着させて除
去し、また永久磁石に磁気吸着させた不純物を剥離して
外部に排出する。According to the method for magnetically coagulating impurities in a liquid as described above, when a magnetic suspension or a non-magnetic suspension (colloid) in a liquid is subjected to a magnetic adsorption process on a permanent magnet by using an impurity. Since the magnetic suspension intervenes in the coagulation reaction and coagulation of impurities due to magnetism, the magnetic suspension becomes a nucleus and the nonmagnetic suspension is strongly magnetically coagulated. The suspended matter is magnetically attracted to a permanent magnet as a magnetic agglomerate in a state in which the suspended matter is firmly encapsulated with a magnetic suspension as a nucleus, and the impurities magnetically attracted to the permanent magnet are separated and discharged to the outside.
【００１５】[0015]
【実施例】（実施例１） 磁性懸濁物である鋼鉄粉（３．３％）および非磁性懸濁
物であるカーボン粉（９６．７％）を不純物として６６
６７ｐｐｍ含む水溶性の放電加工廃液３００ｃｃを、下
記の希土類製の永久磁石（５０×４０×１５ｃｍ）を着
脱可能に内蔵した３セットの分離槽（５００ｃｃ）に各
々充填させて、各分離槽において、下記に述べるような
条件で、バッチ式で不純物を磁気凝集処理を行い、磁気
凝集不純物を磁気吸着した永久磁石を、各分離槽の液面
より引き揚げ、各分離槽内の残留懸濁物濃度の測定を行
ったところ、次の通りであった。EXAMPLES (Example 1) Iron powder (3.3%), which is a magnetic suspension, and carbon powder (96.7%), which is a non-magnetic suspension, were used as impurities.
300 cc of a water-soluble electric discharge machining waste liquid containing 67 ppm was filled into three sets of separation tanks (500 cc) each having a detachable built-in permanent magnet made of the following rare earth (50 × 40 × 15 cm). Under the conditions described below, the impurities are magnetically coagulated in a batch system, and the permanent magnets that magnetically adsorb the magnetically coagulated impurities are pulled up from the liquid surface of each separation tank, and the residual suspended solids concentration in each separation tank is measured. The measurement was as follows.
【００１６】 磁気凝集処理液の不純物量（ｐｐｍ） 第１分離槽 第２分離槽 第３分離槽 永久磁石の磁力 (10000カ゛ウス) (4000カ゛ウス) (1000カ゛ウス) ．．．．．．．．．（本発明法） （比較法） （比較法） 接触時間（分） ０．０１ ３８６６ ６６６７ ６６６７ ０．０５ １３６６ ６６６７ ６６６７ ０．１ ９７８ １３５０ ６６６７ ６０ ５８ １２９０ ６６６７ １８０ １２ １２８７ ６６６７ １９０ １１ １２７４ ６６６７Impurity of magnetic coagulation treatment liquid (ppm) First separation tank Second separation tank Third separation tank Magnetic force of permanent magnet (10,000 cus) (4,000 cus) (1,000 cus). . . . . . . . . (Method of the present invention) ( Comparative method ) (Comparative method) Contact time (minute) 0.01 3866 6667 6667 0.05 1366 6667 6667 0.1 978 1350 6667 60 58 1290 6667 180 12 1287 6667 190 11 112746667
【００１７】以上の磁気凝集処理結果から明らかなよう
に、本発明法の１００００ガウスの磁力を持つ永久磁石
による磁気凝集処理法は、比較法の４０００ガウスまた
は１０００ガウスの磁力を持つ永久磁石による磁気凝集
処理法に比べて、磁気凝集処理液の不純物量が少なく、
水溶性の放電加工液として再利用できるほどの品質を持
っていた。As is clear from the results of the magnetic coagulation treatment described above, the magnetic coagulation treatment method using a permanent magnet having a magnetic force of 10,000 gauss in the method of the present invention is a magnetic method using a permanent magnet having a magnetic force of 4000 or 1000 gauss in the comparative method. Compared with the coagulation treatment method, the amount of impurities in the magnetic coagulation treatment liquid is small,
It had a quality that could be reused as a water-soluble EDM fluid.
【００１８】なお、本発明法の１００００ガウスの磁力
を持つ永久磁石による磁気凝集処理法の場合は、水溶性
の放電加工廃液と永久磁石との接触時間が０．０５分未
満の場合には、本発明の所期の効果を期待できず、また
接触時間が６０分を超えても、接触時間を長くするだけ
のメリットがなく、ほとんど６０分磁気凝集処理結果と
同様であった。In the case of the magnetic coagulation treatment method using a permanent magnet having a magnetic force of 10,000 gauss according to the present invention, when the contact time between the water-soluble electric discharge machining waste liquid and the permanent magnet is less than 0.05 minutes, The expected effect of the present invention could not be expected, and even if the contact time exceeded 60 minutes, there was no merit of increasing the contact time, and the result was almost the same as the result of the magnetic aggregation treatment for 60 minutes.
【００１９】（実施例２） 磁性懸濁物である鋼鉄粉（４．２％）および非磁性懸濁
物であるカーボン粉（９５．８％）を不純物として４２
８７ｐｐｍ含む油性の放電加工廃液を、下記のフェライ
ト製の永久磁石（５０×４０×１５ｃｍ）を着脱可能に
内蔵した３セットの分離槽（３０００ｃｃ）に、下記に
述べるような条件で連続的に流入させて、各分離槽にお
いて、不純物の磁気凝集処理を行い、磁気凝集不純物を
磁気吸着した永久磁石を、各分離槽の液面より引き揚
げ、各分離槽内の残留懸濁物濃度の測定を行ったとこ
ろ、次の通りであった。(Example 2) Iron powder (4.2%) as a magnetic suspension and carbon powder (95.8%) as a non-magnetic suspension were added as impurities to 42%.
An oil-based electric discharge machining waste liquid containing 87 ppm is continuously flown into three sets of separation tanks (3000 cc) in which the following ferrite permanent magnets (50 × 40 × 15 cm) are detachably incorporated, under the conditions described below. Then, in each of the separation tanks, a magnetic coagulation treatment of impurities is performed, and a permanent magnet magnetically adsorbing the magnetically coagulated impurities is pulled up from the liquid surface of each of the separation tanks, and the concentration of the residual suspended solid in each of the separation tanks is measured. It was as follows.
【００２０】 磁気凝集処理液の不純物量（ｐｐｍ） 第１分離槽 第２分離槽 第３分離槽 永久磁石の磁力 (10000カ゛ウス) (4000カ゛ウス) (1000カ゛ウス) ．．．．．．．．（本発明法） （比較法） （比較法） 流速（米／秒） ０．０１ ５５ １３２ ４２８７ ０．０５ ５６ ２６３ ４２８７ ０．１ １１２ ５２５ ４２８７ ０．３ ３３６ １５７５ ４２８７ ０．５ ５５０ ２６２５ ４２８７ ０．６ ２３５３ ３１５０ ４２８７Impurity (ppm) of magnetic agglutination treatment liquid First separation tank Second separation tank Third separation tank Magnetic force of permanent magnet (10000 gauss) (4000 gauss) (1000 gauss). . . . . . . . (Method of the Present Invention) ( Comparative Method ) (Comparative Method) Flow Rate (US / sec) 0.01 55 132 4287 0.05 56 263 4287 0.1 112 525 4287 0.3 336 1575 4287 0.5 550 2625 4287 0 .6 2353 3150 4287
【００２１】以上述べた磁気凝集処理結果から明らかな
ように、本発明法の１００００ガウスの磁力を持つ永久
磁石による磁気凝集処理法は、比較法の４０００ガウス
または１０００ガウスの磁力を持つ永久磁石による磁気
凝集処理法に比べて、磁気凝集処理液の不純物量が少な
く、油性の放電加工液として再利用できるほどの品質を
持っていた。As is clear from the results of the magnetic coagulation treatment described above, the magnetic coagulation treatment method using a permanent magnet having a magnetic force of 10,000 gauss in the method of the present invention uses the permanent magnet having a magnetic force of 4000 gauss or 1000 gauss in the comparative method. Compared with the magnetic coagulation treatment method, the amount of impurities in the magnetic coagulation treatment liquid was small, and the quality was such that it could be reused as an oily electric discharge machining liquid.
【００２２】なお、本発明法の１００００ガウスの磁力
を持つ磁石による磁気凝集処理法の場合は、油性の放電
加工廃液と永久磁石の流速が０．０５米／秒未満の場合
には、流速を遅くしても、遅くするだけのメリットがな
く、ほとんど０．０５米／秒の磁気凝集処理結果と同様
であり、また流速が０．５米／秒を超えると、本発明の
所期の効果を期待できない。In the case of the magnetic coagulation treatment method using a magnet having a magnetic force of 10,000 gauss according to the present invention, if the flow rate of the oily electric discharge machining waste liquid and the permanent magnet is less than 0.05 US / sec, the flow rate is reduced. Even if it is slowed down, there is no merit of slowing down, and it is almost the same as the result of the magnetic coagulation treatment of 0.05 US / sec. When the flow rate exceeds 0.5 US / sec, the expected effect of the present invention is obtained. Can not expect.
【００２３】本発明の液体中の不純物の磁気凝集処理装
置を、工作機械等より排出する磁性懸濁物（鋼鉄粉）お
よび非磁性懸濁物（カーボン粉）を不純物として含む油
性の放電加工廃液を例として、図１に従って説明する。
磁気凝集処理槽１内に付設した回転軸２の両端に回転板
３ａと３ｂを固定し、この二枚の回転板３ａと３ｂの相
対する側面の全面に、１００００ガウス以上の磁力を持
つ複数個の円盤状の永久磁石４を、互いの磁極が対極に
なり、かつ、互いの磁界が作用し合う間隔で対向するよ
うに配置し、これらの永久磁石４の表面に非磁性体の付
着板５を設ける。The oil-based electric discharge machining waste liquid containing, as impurities, a magnetic suspension (steel powder) and a non-magnetic suspension (carbon powder) discharged from a machine tool or the like by the apparatus for magnetically coagulating impurities in a liquid of the present invention. Will be described with reference to FIG.
Rotating plates 3a and 3b are fixed to both ends of a rotating shaft 2 provided in a magnetic coagulation treatment tank 1, and a plurality of rotating plates 3a and 3b having a magnetic force of 10,000 gauss or more are provided on the entire opposing side surfaces. Disk-shaped permanent magnets 4
And oppose each other at an interval where the magnetic fields act on each other.
Uni arranged, provided the attachment plate 5 of the non-magnetic material in these surfaces of the permanent magnet 4.
【００２４】すなわち、永久磁石４は回転板３ａ、３ｂ
と付着板５とによってサンドイッチ状に挟まれて挿填し
た状態に構成し、さらに複数個の永久磁石４は、図２に
示すように、回転板３ａの側面の全面にメリーゴーラウ
ンド状に相互に間隔を置いて取り付け、これらの永久磁
石４の直径は、回転板３ａの外周と内周（回転軸２の外
周）の幅とほぼ同じくし、磁気凝集処理槽１内に流入す
る液体は、必ず、永久磁石４に接触して通液するように
構成する。なお、永久磁石の構成は、回転板３ｂについ
ても同様である。That is, the permanent magnets 4 are composed of the rotating plates 3a, 3b
2 and a plurality of permanent magnets 4 are mutually sandwiched in a merry-go-round shape over the entire side surface of the rotating plate 3a as shown in FIG. The permanent magnets 4 are mounted at intervals, and the diameters of these permanent magnets 4 are almost the same as the widths of the outer circumference and the inner circumference (the outer circumference of the rotating shaft 2) of the rotating plate 3a. , So that the liquid flows in contact with the permanent magnet 4. The configuration of the permanent magnet is the same for the rotating plate 3b.
【００２５】このように、二枚の回転板３ａと３ｂの相
対する側面の全面に、１００００ガウス以上の磁力を持
つ複数個の永久磁石４を、互いの磁極が対極になり、か
つ、互いの磁界が作用し合う間隔で対向するように配置
し、液体中の磁性懸濁物を核として非磁性懸濁物を磁気
凝集させ、この磁気凝集物である不純物を永久磁石４の
付着板５に磁気吸着する磁場６を磁気凝集処理槽１内に
形成する。As described above, a plurality of permanent magnets 4 having a magnetic force of 10,000 gauss or more are provided on the entire opposite side surfaces of the two rotating plates 3a and 3b, and the magnetic poles of the permanent magnets 4 are opposite to each other.
Are arranged so that they oppose each other at the interval where the magnetic fields act on each other
Then, a non-magnetic suspension is magnetically aggregated with the magnetic suspension in the liquid as a nucleus, and a magnetic field 6 for magnetically adsorbing the impurities, which are the magnetic aggregates, to the attachment plate 5 of the permanent magnet 4 is applied to the magnetic aggregation treatment tank 1. Formed.
【００２６】永久磁石４としては、前述したように、１
００００ガウス以上の磁力を持つフェライト永久磁石や
希土類永久磁石等の永久磁石を用いるとよく、なかで
も、サマリウム・コバルト系の希土類永久磁石またはネ
オジム・鉄・ホウ系の希土類永久磁石が好ましく、特
に、異方性のネオジム・鉄・ホウ系の希土類永久磁石に
は、１２０００ガウスの磁力を有するものがあり、これ
などは最適のものである。As described above, as the permanent magnet 4, 1
It is preferable to use a permanent magnet such as a ferrite permanent magnet or a rare earth permanent magnet having a magnetic force of 0000 gauss or more, and among them, a samarium / cobalt rare earth permanent magnet or a neodymium / iron / bore rare earth permanent magnet is preferable. Among the anisotropic neodymium-iron-bored rare earth permanent magnets, those having a magnetic force of 12000 gauss are optimal.
【００２７】また永久磁石の形状としては、円盤状のも
の以外に、四角形等の多角形状のものも用いてもよく、
大きさとしては１〜１００ｃｍ2 、厚さは０．５〜３ｃ
ｍが適当であり、使用個数としては４〜３００個を、相
互に０．１〜５ｃｍの間隔をおいて配置するとよい。As the shape of the permanent magnet, a polygonal shape such as a square may be used in addition to a disk shape.
The size is 1-100cm2, the thickness is 0.5-3c
m is appropriate, and 4 to 300 pieces are preferably used at intervals of 0.1 to 5 cm from each other.
【００２８】なお、二枚の回転板３ａと３ｂの相対する
側面に取り付ける複数個を永久磁石４の磁極は、（１）
回転板３ａまたは３ｂの磁極をＳとＮのランダムに配列
して配置したり、（２）回転板３ａまたは３ｂの磁極を
Ｎ、Ｓ、Ｎ、Ｓ、Ｎ、Ｓと交互に配置したりして、磁気
凝集処理を行う磁場６を形成する。The magnetic poles of the plurality of permanent magnets 4 attached to the opposing side surfaces of the two rotating plates 3a and 3b are (1)
The magnetic poles of the rotating plate 3a or 3b are randomly arranged S and N, or (2) the magnetic poles of the rotating plate 3a or 3b are alternately arranged with N, S, N, S, N, S. Thus, a magnetic field 6 for performing a magnetic aggregation process is formed.
【００２９】また、（３）回転板３ａまたは３ｂの磁極
を、図２に示すように、Ｎ、Ｎ、Ｓ、Ｓ、Ｎ、Ｎ、Ｓ、
Ｓの順に配列して配置すると、前述した（１）、（２）
の場合に比較して、２倍の強力な磁場６を形成すること
ができる。(3) As shown in FIG. 2, the magnetic poles of the rotating plate 3a or 3b are N, N, S, S, N, N, S,
When arranged and arranged in the order of S, the above-described (1) and (2)
As compared with the case (2), a twice stronger magnetic field 6 can be formed.
【００３０】さらに、（４）二枚の回転板３ａと３ｂの
うち、一枚の回転板３ａ側面に取り付けた復数個の永久
磁石４の磁極と、他の一枚の回転板３ｂの側面に取り付
けた複数個の永久磁石４の磁極を対極構造、すなわち、
一方の回転板３ａの磁極をすべてＮにし、他方の回転板
３ｂの磁極をすべてＳにして配置すると、前述した
（１）、（２）の場合に比較して、３倍の一層強力な磁
場６を形成することができる。(4) Of the two rotating plates 3a and 3b, the magnetic poles of a plurality of permanent magnets 4 attached to the side surface of one rotating plate 3a and the side surfaces of another rotating plate 3b The magnetic poles of the plurality of permanent magnets 4 attached to the
When all the magnetic poles of one rotating plate 3a are set to N and all the magnetic poles of the other rotating plate 3b are set to S, the magnetic field is three times stronger than that of the above-mentioned cases (1) and (2). 6 can be formed.
【００３１】特に、（５）図１に示すように、二枚の回
転板３ａと３ｂのうち、一枚の回転板の３ａ側面に取り
付けた復数個の永久磁石４の磁極を、Ｎ、Ｎ、Ｓ、Ｓ、
Ｎ、Ｎ、Ｓ、Ｓの順に配列して配置し、さらに、他の一
枚の回転板と３ｂの側面に取り付けた複数個の永久磁石
４の磁極を、Ｓ、Ｓ、Ｎ、Ｎ、Ｓ、Ｓ、Ｎ、Ｎの順に配
列して配置し、二枚の回転板３ａと３ｂの相対する各永
久磁石４の磁極を対極構造にすることによって、前述し
た（１）、（２）の場合に比較して、６倍の非常に強力
で、最も望ましい磁場６を形成することができる。In particular, (5) As shown in FIG. 1, of the two rotating plates 3a and 3b, the magnetic poles of a plurality of permanent magnets 4 attached to the side surface 3a of one rotating plate are denoted by N, N, S, S,
N, N, S, and S are arranged in this order, and the other one of the rotating plates and the magnetic poles of the plurality of permanent magnets 4 attached to the side surface of 3b are S, S, N, N, S , S, N, N are arranged in this order, and the magnetic poles of the permanent magnets 4 facing each other of the two rotating plates 3a and 3b are formed in a counter electrode structure. , A magnetic field 6 which is six times as strong and most desirable can be formed.
【００３２】なお、この二枚の回転板３ａと３ｂの永久
磁石４に取り付けた付着板５の表面に近接させて、スク
レパー７を磁気凝集処理槽１内に付設し、永久磁石４を
挿填して回転板３ａと３ｂとともに回転する付着板５の
表面に付着した磁気凝集物８を、このスクレパー７で剥
離するように構成する。A scraper 7 is provided in the magnetic coagulation treatment tank 1 near the surface of the attaching plate 5 attached to the permanent magnets 4 of the two rotating plates 3a and 3b, and the permanent magnets 4 are inserted. Then, the magnetic aggregates 8 attached to the surface of the attachment plate 5 rotating together with the rotating plates 3a and 3b are separated by the scraper 7.
【００３３】磁気凝集処理槽１の流入側には、工作機械
等より排出する磁性懸濁物および非磁性懸濁物を含む放
電加工廃液の流入管９を接続し、また磁気凝集処理槽１
の流出側には、磁気凝集処理を行って不純物を除去した
クーラント液（処理液）の流出管１０を接続し、さらに
スクレパー７の一端には、スクレパー７で剥離した磁気
凝集物８を不純物として排出する廃棄貯槽１１と接続す
る。The inflow side of the magnetic flocculation treatment tank 1 is connected to an inflow pipe 9 for electric discharge machining waste liquid containing a magnetic suspension and a non-magnetic suspension discharged from a machine tool or the like.
The outflow side is connected to an outflow pipe 10 of a coolant liquid (treatment liquid) from which impurities have been removed by performing a magnetic coagulation process. Further, at one end of the scraper 7, a magnetic agglomerate 8 peeled off by the scraper 7 is used as an impurity. It is connected to the waste storage tank 11 to be discharged.
【００３４】回転板３ａと３ｂを固定した回転軸２のス
ポロケット１２はチェーン１３を介してモーター１４に
接続させ、二枚の回転板３ａと３ｂが回転することによ
って、これらに取り付けた複数の永久磁石４が回転する
ようにするが、これらの二枚の回転板３ａと３ｂの回転
数は０．１〜５０回／分とすることが望ましい。The sprockets 12 of the rotating shaft 2 to which the rotating plates 3a and 3b are fixed are connected to a motor 14 via a chain 13, and the two rotating plates 3a and 3b are rotated, whereby a plurality of sprockets attached to these are mounted. The permanent magnet 4 is rotated, and the rotation speed of these two rotating plates 3a and 3b is preferably set to 0.1 to 50 times / minute.
【００３５】本発明の連続通液式の磁気凝集処理装置の
操作、運転について説明すると、磁気凝集処理槽１の流
入管９より、工作機械等より排出された磁性懸濁物およ
び非磁性懸濁物等の不純物を含む放電加工廃液を同槽１
内に、前述した所定の流速で流入させるとともに、磁気
凝集処理装置の架台１５に付設したモーター１４を駆動
させてチェーン１３を介して回転軸２のスポロケット１
２を回転させ、永久磁石４を複数個取り付けた回転板３
ａと３ｂを時計方向に回転させる。The operation and operation of the continuous liquid-flow type magnetic flocculation treatment apparatus of the present invention will be described. The magnetic suspension and the non-magnetic suspension discharged from the machine tool or the like through the inflow pipe 9 of the magnetic flocculation treatment tank 1 will be described. EDM waste liquid containing impurities such as materials
The sprocket 1 of the rotating shaft 2 is driven through a chain 13 by driving a motor 14 attached to a mount 15 of the magnetic coagulation processing device.
2 is rotated, and a rotating plate 3 on which a plurality of permanent magnets 4 are attached.
Rotate a and 3b clockwise.
【００３６】磁気凝集処理槽１内に流入した放電加工廃
液は、時計方向に回転する二枚の回転板３ａと３ｂの間
を逆方向に流入して行き、放電加工廃液に含まれている
磁性懸濁物および非磁性懸濁物等の不純物は、二枚の回
転板３ａと３ｂに複数個取り付けた異方性のネオジム・
鉄・ホウ系の希土類の永久磁石４の磁極を対極構造に形
成した非常に強力な磁場６において、磁性懸濁物を核と
して非磁性懸濁物を抱き込んだ状態で磁気凝集させ、永
久磁石４の付着板５の表面に磁気凝集物８として磁気吸
着して除去する。The electric discharge machining effluent flowing into the magnetic coagulation treatment tank 1 flows in the opposite direction between the two rotating plates 3a and 3b rotating in the clockwise direction, and is contained in the electric discharge machining effluent. Impurities such as suspensions and non-magnetic suspensions are anisotropic neodymium / aluminum attached to two rotating plates 3a and 3b.
In a very strong magnetic field 6 in which the magnetic poles of the iron-bored rare earth permanent magnet 4 are formed in a counter electrode structure, the magnetic suspension is magnetically agglomerated with the non-magnetic suspension as a nucleus. 4 is magnetically adsorbed and removed as magnetic aggregates 8 on the surface of the attachment plate 5.
【００３７】不純物を前述した磁性懸濁物を核として非
磁性懸濁物を抱き込んだ状態の磁気凝集物８として除去
した後の処理液であるクーラント液は、磁気凝集処理槽
１の流出管１０を経て、クーラント液として回収し、ま
た永久磁石４の付着板５の表面に磁気吸着された磁気凝
集物８は、二枚の回転板３ａと３ｂとともに時計方向に
回転して行き、スクレパー７の位置まで回転すると、ス
クレパー７によって付着板５の表面より掻き取って剥離
し、この剥離した磁気凝集物８をスクレパー７に沿って
搬送して廃棄貯槽１１に排出する。The coolant, which is the processing liquid after the impurities have been removed as the magnetic agglomerate 8 with the above-described magnetic suspension as the nucleus and the non-magnetic suspension embraced therein, is supplied to the outlet pipe of the magnetic aggregation processing tank 1. After passing through 10, the magnetic aggregate 8 collected as a coolant liquid and magnetically attracted to the surface of the attachment plate 5 of the permanent magnet 4 rotates clockwise together with the two rotating plates 3a and 3b, and the scraper 7 When the scraper 7 rotates to the position, the scraper 7 scrapes off the surface of the attachment plate 5 and separates it. The separated magnetic aggregate 8 is transported along the scraper 7 and discharged to the waste storage tank 11.
【００３８】前述した実施例においては、連続通液式の
磁気凝集処理装置の操作、運転について説明したが、バ
ッチ式の磁気凝集処理装置の操作、運転について説明す
ると、磁気凝集処理槽１の流入管９より、工作機械等よ
り排出された磁性懸濁物および非磁性懸濁物等の不純物
を含む放電加工廃液を同槽１内に所定量流入させ後に廃
液の流入を一時中断する。In the above-described embodiment, the operation and operation of the continuous liquid-flow type magnetic flocculation treatment apparatus have been described. However, the operation and operation of the batch type magnetic flocculation treatment apparatus will be described. A predetermined amount of electric discharge machining waste fluid containing impurities such as magnetic suspensions and non-magnetic suspensions discharged from a machine tool or the like is discharged from the pipe 9 into the tank 1, and then the inflow of the waste fluid is temporarily stopped.
【００３９】磁気凝集処理槽１内に流入した放電加工廃
液は、二枚の回転板３ａと３ｂの間に流入して行き、放
電加工廃液に含まれている磁性懸濁物および非磁性懸濁
物等の不純物を、前述した二枚の回転板３ａと３ｂに形
成した対極構造の非常に強力な磁場６において、前述し
た所定時間滞留させることによって、磁性懸濁物を核と
して非磁性懸濁物を抱き込んだ状態で磁気凝集させ、永
久磁石４の付着板５の表面に磁気凝集物８として磁気吸
着させる。The electric discharge machining effluent flowing into the magnetic coagulation treatment tank 1 flows between the two rotating plates 3a and 3b, and the magnetic suspension and the non-magnetic suspension contained in the electric discharge machining effluent. The impurities such as substances are retained in the extremely strong magnetic field 6 having the counter electrode structure formed on the two rotating plates 3a and 3b described above for the above-mentioned predetermined time, thereby making the magnetic suspension a core and the non-magnetic suspension. The material is magnetically agglomerated in a state of being embraced, and magnetically attracted to the surface of the attachment plate 5 of the permanent magnet 4 as a magnetic agglomerate 8.
【００４０】次いで、モーター１４を駆動させてチェー
ン１３を介して回転軸２のスポロケット１２を回転させ
ることによって、回転板３ａと３ｂを時計方向に回転さ
せ、磁気凝集物８を表面に磁気吸着した永久磁石４の付
着板５を、スクレパー７の位置まで回転させて、スクレ
パー７によって付着板５の表面より掻き取って剥離し、
この剥離した磁気凝集物８をスクレパー７に沿って搬送
して廃棄貯槽１１に排出するとともに、磁気凝集物８を
除去した処理液であるクーラント液を磁気凝集処理槽１
の流出管１０からクーラント液として回収する。Next, the motors 14 are driven to rotate the sprockets 12 of the rotating shaft 2 via the chain 13 to rotate the rotating plates 3a and 3b clockwise, thereby magnetically attracting the magnetic aggregate 8 to the surface. The attached plate 5 of the permanent magnet 4 is rotated to the position of the scraper 7, scraped off the surface of the attached plate 5 by the scraper 7, and separated.
The separated magnetic aggregate 8 is transported along the scraper 7 and discharged to the waste storage tank 11, and the coolant liquid, which is the processing liquid from which the magnetic aggregate 8 has been removed, is supplied to the magnetic aggregation tank 1.
From the outflow pipe 10 as a coolant liquid.
【００４１】[0041]
【発明の効果】本発明によると、液体中の磁性懸濁物、
非磁性懸濁物（コロイド物）等の不純物のすべてを、不
純物の除去処理を中断してフィルターの交換、洗浄等を
行うことなく、長時間にわたって、効率よく、イニシャ
ルコスト、ランニングコストを低減して、液体より除去
することができる。According to the present invention, a magnetic suspension in a liquid,
For all impurities such as non-magnetic suspensions (colloids), the initial cost and running cost can be reduced efficiently over a long period of time without interrupting the removal of impurities and replacing or cleaning filters. And can be removed from the liquid.
【００４２】また、本発明によると、従来より処理が難
して廃棄することが多く、さらに廃棄するにも費用がか
かっていた、磁性懸濁物、非磁性懸濁物等の不純物を含
む液体を、これらの不純物を除去して処理液、たとえ
ば、放電加工液、クーラント液、エンジンオイル等とし
て再使用できるので、資源の再活用となる。Further, according to the present invention, liquids containing impurities such as magnetic suspensions and non-magnetic suspensions, which are conventionally difficult to treat and are often disposed of, and which are also expensive to dispose of, are conventionally used. Since these impurities can be removed and reused as a treatment liquid, for example, an electric discharge machining liquid, a coolant liquid, an engine oil, etc., resources can be reused.
【００４３】さらに、本発明によると、液体中の不純物
は液体より分離、脱液して収集できるので、廃棄物量を
極端に減量化することが可能であり、廃棄場所を取ら
ず、廃棄処理費用を節減できるし、さらに廃棄物は腐敗
して悪臭を放つこともなくて職場環境を良好に保てる利
点もある。Further, according to the present invention, the impurities in the liquid can be separated and collected from the liquid, and thus the amount of waste can be extremely reduced. It also has the advantage of maintaining a good working environment without waste spoiling and stinking.
【図１】本発明の、二枚の回転板に、複数の永久磁石の
磁極を対極構造に配置して磁気凝集処理を行う磁場を形
成した連続通液式の磁気凝集処理装置の説明図である。FIG. 1 is an explanatory view of a continuous liquid passing type magnetic coagulation processing apparatus according to the present invention, in which magnetic fields for performing magnetic coagulation processing are formed by arranging magnetic poles of a plurality of permanent magnets in a counter electrode structure on two rotating plates. is there.
【図２】図１のＡ−Ａ線の断面を示す説明図である。FIG. 2 is an explanatory diagram showing a cross section taken along line AA of FIG. 1;
１ 磁気凝集処理槽 ２ 回転軸 ３ 回転板 ４ 永久磁石 ５ 付着板 ６ 磁場 ７ スクレーパー ８ 磁気凝集物 ９ 流入管 １０ 流出管 １４ モーター DESCRIPTION OF SYMBOLS 1 Magnetic coagulation processing tank 2 Rotating shaft 3 Rotating plate 4 Permanent magnet 5 Adhering plate 6 Magnetic field 7 Scraper 8 Magnetic coagulation 9 Inflow pipe 10 Outflow pipe 14 Motor
Claims (4)
不純物を永久磁石に磁気吸着するについて、１００００
ガウス以上の磁力を持つ複数の永久磁石を、互いの磁極
が対極になり、かつ、互いの磁界が作用し合う間隔で対
向するように配置し、これらの永久磁石に不純物を含む
液体を０．０５〜６０分間接触させて、液体中の磁性懸
濁物を核として非磁性懸濁物を磁気凝集させて、永久磁
石に磁気吸着する液体中の不純物の磁気凝集処理方法。1. A method for magnetically adsorbing impurities such as a magnetic suspension and a non-magnetic suspension in a liquid to a permanent magnet.
Multiple permanent magnets with a magnetic force of Gauss or more
Are the opposite poles, and at opposite intervals where the magnetic fields act on each other.
The liquid containing impurities is brought into contact with these permanent magnets for 0.05 to 60 minutes to magnetically aggregate the non-magnetic suspension with the magnetic suspension in the liquid as a nucleus. For magnetically coagulating impurities in a liquid magnetically adsorbed on a liquid.
不純物を永久磁石に磁気吸着するについて、１００００
ガウス以上の磁力を持つ複数の永久磁石を、互いの磁極
が対極になり、かつ、互いの磁界が作用し合う間隔で対
向するように配置し、これらの永久磁石に不純物を含む
液体を０．０５〜０．５米／秒の流速で通液させて、液
体中の磁性懸濁物を核として非磁性懸濁物を磁気凝集さ
せて、永久磁石に磁気吸着する液体中の不純物の磁気凝
集処理方法。 2. A method for magnetically adsorbing impurities such as a magnetic suspension and a non-magnetic suspension in a liquid to a permanent magnet.
Multiple permanent magnets with a magnetic force of Gauss or more
Are the opposite poles, and at opposite intervals where the magnetic fields act on each other.
The liquid containing impurities is passed through these permanent magnets at a flow rate of 0.05 to 0.5 U / sec, and the magnetic suspension in the liquid is used as a nucleus for the non-magnetic suspension. Magnetically coagulates impurities in a liquid to be magnetically coagulated to a permanent magnet.
気凝集処理槽内に付設した回転軸の両端に回転板を固定
し、この二枚の回転板の相対する側面の全面に、１００
００ガウス以上の磁力を持つ複数の永久磁石を、互いの
磁極が対極になり、かつ、互いの磁界が作用し合う間隔
で対向するように配置し、液体中の磁性懸濁物を核とし
て非磁性懸濁物を磁気凝集させて永久磁石に磁気吸着す
る磁場を形成し、さらに、この二枚の回転板に取り付け
た永久磁石の表面に近接させて、永久磁石の表面に付着
した磁気凝集物を剥離するスクレパーを磁気凝集処理槽
内に付設した液体中の不純物の磁気凝集処理装置。 3. A rotary plate is fixed to both ends of a rotary shaft provided in a magnetic coagulation treatment tank in which a stock solution inflow pipe and a processing solution outflow pipe communicate with each other.
A plurality of permanent magnets with a magnetic force of 00 Gauss or more
The interval at which the magnetic poles are opposite poles and the magnetic fields of each other act
The magnetic suspension in the liquid is used as a nucleus to magnetically coagulate the non-magnetic suspension to form a magnetic field for magnetic adsorption to the permanent magnet, and further attached to the two rotating plates. A device for magnetically coagulating impurities in a liquid, wherein a scraper is provided in a magnetic coagulation bath for removing magnetic coagulates attached to the surface of the permanent magnet in proximity to the surface of the permanent magnet.
面の全面に、間隔を置いて取り付けた複数個の永久磁石
の磁極を、Ｎ、Ｎ、Ｓ、Ｓ、Ｎ、Ｎ、Ｓ、Ｓの順に配列
して配置し、さらに、他の一枚の回転板の側面の全面
に、間隔を置いて取り付けた複数個の永久磁石の磁極
を、Ｓ、Ｓ、Ｎ、Ｎ、Ｓ、Ｓ、Ｎ、Ｎの順に配列して配
置し、二枚の回転板の相対する各永久磁石の磁極を対極
に配置した請求項３記載の液体中の不純物の磁気凝集処
理装置。 4. The magnetic poles of a plurality of permanent magnets attached at intervals over the entire side surface of one of the two rotating plates, N, N, S, S, N, N , S, S are arranged in this order, and the magnetic poles of a plurality of permanent magnets attached at intervals on the entire side surface of another rotating plate are S, S, N, N, 4. The apparatus for magnetically coagulating impurities in a liquid according to claim 3 , wherein S, S, N, and N are arranged in this order, and the magnetic poles of the permanent magnets facing each other of the two rotating plates are arranged as counter electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30627192A JP3241462B2 (en) | 1992-07-10 | 1992-10-20 | Method and apparatus for magnetically coagulating impurities in liquid |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20614492 | 1992-07-10 | ||
| JP4-206144 | 1992-07-10 | ||
| JP30627192A JP3241462B2 (en) | 1992-07-10 | 1992-10-20 | Method and apparatus for magnetically coagulating impurities in liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0671195A JPH0671195A (en) | 1994-03-15 |
| JP3241462B2 true JP3241462B2 (en) | 2001-12-25 |
Family
ID=26515472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30627192A Expired - Fee Related JP3241462B2 (en) | 1992-07-10 | 1992-10-20 | Method and apparatus for magnetically coagulating impurities in liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3241462B2 (en) |
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|---|---|---|---|---|
| JPH09248483A (en) * | 1996-03-14 | 1997-09-22 | Inaba Eiko | Magnetic flocculation treatment apparatus of impurities in liquid |
| TW383249B (en) | 1998-09-01 | 2000-03-01 | Sumitomo Spec Metals | Cutting method for rare earth alloy by annular saw and manufacturing for rare earth alloy board |
| MY126790A (en) | 1999-09-16 | 2006-10-31 | Neomax Co Ltd | Method and apparatus for grinding magnetic member and method and apparatus for treating waste fluid |
| MY126994A (en) | 1999-12-14 | 2006-11-30 | Hitachi Metals Ltd | Method and apparatus for cutting a rare earth alloy |
| JP5115219B2 (en) * | 2007-10-01 | 2013-01-09 | 株式会社日立プラントテクノロジー | Magnetic separation device |
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| JP5115220B2 (en) * | 2007-10-01 | 2013-01-09 | 株式会社日立プラントテクノロジー | Magnetic separation device |
| CA2640019C (en) * | 2007-10-01 | 2016-01-05 | Hitachi Plant Technologies, Ltd. | Magnetic separation apparatus |
| JP4968546B2 (en) * | 2008-12-24 | 2012-07-04 | 株式会社日立プラントテクノロジー | Magnetic separation device |
| KR101223321B1 (en) * | 2012-05-24 | 2013-01-16 | (주)엔에스케이 엔지니어링 | Iron making plant for disk type magnet filter |
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-
1992
- 1992-10-20 JP JP30627192A patent/JP3241462B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102077810B1 (en) * | 2018-10-31 | 2020-02-14 | 주식회사 유연이앤이 | Testing apparatus of fuel injection valve and testing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0671195A (en) | 1994-03-15 |
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