JPH08131731A - Magnetic separating device - Google Patents
Magnetic separating deviceInfo
- Publication number
- JPH08131731A JPH08131731A JP6281659A JP28165994A JPH08131731A JP H08131731 A JPH08131731 A JP H08131731A JP 6281659 A JP6281659 A JP 6281659A JP 28165994 A JP28165994 A JP 28165994A JP H08131731 A JPH08131731 A JP H08131731A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- filter
- air
- shield body
- 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.)
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- Filtration Of Liquid (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は磁気分離装置に係り、特
に高勾配電磁フィルタの洗浄構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic separation device, and more particularly to a cleaning structure for a high gradient electromagnetic filter.
【０００２】[0002]
【従来の技術】固液分離技術を応用した水処理装置で
は、高勾配電磁フィルタを使用する。高勾配電磁フィル
タに外部から印加する磁場発生装置としては、直流電源
による電磁石を用いる。この構造は化学工学、第４５
巻、第４号（１９８１年）第２３５頁から２３９頁に記
載されている。高勾配電磁フィルタを鉄製のヨークで囲
み、磁力線の通路とその漏洩の防止をかねている。その
内側にコイルが、更に中央部に高勾配電磁フィルタ部が
配置されており、フィルタ容器の中には多数の孔が開い
た磁極が高勾配電磁フィルタ部を挟んで上下に対置して
いる。2. Description of the Related Art A water treatment apparatus to which a solid-liquid separation technique is applied uses a high gradient electromagnetic filter. An electromagnet using a DC power supply is used as a magnetic field generator that is externally applied to the high gradient electromagnetic filter. This structure is chemical engineering, 45th
Vol. 4, No. 4 (1981), pages 235 to 239. The high-gradient electromagnetic filter is surrounded by an iron yoke to prevent passage of magnetic field lines and their leakage. A coil is arranged inside thereof, and a high-gradient electromagnetic filter portion is arranged in the central portion, and magnetic poles having a large number of holes are arranged in the filter container so as to face each other with the high-gradient electromagnetic filter portion interposed therebetween.
【０００３】高勾配電磁フィルタは磁性細線で構成さ
れ、金網状の磁性ステンレス細線を充填している。A high-gradient electromagnetic filter is composed of magnetic fine wires, and is filled with wire mesh-like magnetic stainless fine wires.
【０００４】このように均一な磁場内に、曲率半径の極
めて小さな部分を持つ磁性細線を配置することによっ
て、細線表面近傍で局部的な磁場の疎密ができ大きな磁
気勾配が発生する。水処理する原水中の磁性粒子はこの
細線表面に吸引される。By arranging the magnetic fine wire having a portion having an extremely small radius of curvature in such a uniform magnetic field, the magnetic field is locally distributed near the surface of the fine wire, and a large magnetic gradient is generated. The magnetic particles in the raw water to be treated with water are attracted to the surface of the thin wire.
【０００５】高直勾配磁気フィルタの運転操作基本フロ
ーを図１に示し、次のように行われる。なお、図中の品
番は図２、図３と同一である。◆ （１）空心コイル３４に直流電源装置３５から直流電源
を流す。The basic operation flow of the high straight gradient magnetic filter is shown in FIG. 1 and is performed as follows. The product numbers in the figure are the same as those in FIGS. (1) DC power is supplied from the DC power supply device 35 to the air-core coil 34.
【０００６】（２）直流電流に比例した磁場が、円筒状
縦型圧力容器７内に発生し、磁場は磁極９によって均一
化される。◆ （３）均一化された磁場によって、フィルタ８の磁性細
線充填物を磁化する。(2) A magnetic field proportional to the direct current is generated in the cylindrical vertical pressure vessel 7, and the magnetic field is homogenized by the magnetic pole 9. (3) The magnetic wire filling material of the filter 8 is magnetized by the homogenized magnetic field.
【０００７】（４）磁場は、磁化された磁性細線充填物
のために乱れを生じ、局部的に磁束の疎密ができ、高磁
場勾配となる部分が多数発生する。◆ （５）磁性粒子を含んだ原水２を下方から上向流で送水
すると、原水中の磁性粒子は充填物の磁性細線表面に、
大きな磁力で捕捉される。(4) The magnetic field is disturbed due to the magnetized magnetic wire filling material, the magnetic flux is locally concentrated and dense, and a large number of portions having a high magnetic field gradient are generated. ◆ (5) When the raw water 2 containing magnetic particles is fed from below in an upward flow, the magnetic particles in the raw water will come to the surface of the magnetic fine wire of the packing.
It is captured with a large magnetic force.
【０００８】（６）磁性粒子が一定量捕捉されれた後、
磁気分離の性能を回復させるために、自動的に逆洗が行
われる。逆洗は、直流電源を切り、磁場を無くした後フ
ィルタ上部から弁１９を通じて供給する原水の洗浄処理
水と、空気タンク１７から弁１６を通じて空気を供給し
エヤーバブリングを行いながら磁性細線表面に付着した
磁性粒子を洗浄除去する。(6) After a certain amount of magnetic particles are captured,
A backwash is automatically performed to restore the performance of magnetic separation. In backwashing, the DC power is turned off, the magnetic field is removed, and the raw water is washed from the upper part of the filter through the valve 19 and the air is supplied from the air tank 17 through the valve 16 to adhere to the surface of the magnetic wire while performing air bubbling. The removed magnetic particles are washed away.
【０００９】このように、フィルタの洗浄は空心コイル
の直流電源を切って行う。空心コイルが常伝導マグネッ
トである場合は、コイルの直流電源を切る運転操作は容
易である。As described above, the cleaning of the filter is performed by turning off the DC power supply of the air core coil. When the air-core coil is a normal conduction magnet, the operation of turning off the DC power supply of the coil is easy.
【００１０】[0010]
【発明が解決しようとする課題】しかし、水処理装置の
大型化や高性能化のために空心コイルを超伝導マグネッ
トで構成する場合は、コイルの直流電源を切る運転操作
は容易ではなく、極低温に冷却されたコイル内の永久電
流を室温部の抵抗器で吸収し、フィルタ洗浄後再び直流
電源からコイル内に永久電流を流す操作が必要となる。
この操作では、極低温に冷却されたコイル内と室温部の
抵抗器、直流電源を線径の大きな電気伝導体で接続する
ため、電気伝導体からコイルに多量の熱が侵入しコイル
温度を上昇させる。このため、この操作の間コイルの冷
却冷媒例えば液体ヘリウムを補給しながら行う必要があ
り、頻繁に行うフィルタ洗浄が煩雑となり、かつ補給用
の冷却冷媒のコストが大きくなる問題がある。However, when the air-core coil is composed of a superconducting magnet in order to increase the size and performance of the water treatment device, it is not easy to turn off the DC power supply of the coil, and the pole operation is not easy. It is necessary to absorb the permanent current in the coil cooled to a low temperature by the resistor in the room temperature section, and after washing the filter, again apply the permanent current from the DC power supply into the coil.
In this operation, the coil cooled to cryogenic temperature, the resistor in the room temperature part, and the DC power supply are connected by an electric conductor with a large wire diameter, so a large amount of heat enters the coil from the electric conductor and the coil temperature rises. Let For this reason, it is necessary to replenish the coil cooling refrigerant, for example, liquid helium during this operation, which complicates frequent filter cleaning and increases the cost of the replenishing cooling refrigerant.
【００１１】本発明の目的は、コイルの電流を切らずに
フィルタを洗浄できる、固液分離技術を応用した水処理
装置を提供することにある。It is an object of the present invention to provide a water treatment device to which a solid-liquid separation technique is applied, which can wash a filter without turning off the coil current.
【００１２】[0012]
【課題を解決するための手段】上記目的は、磁気シール
ド体でフィルタを囲い、空心コイルが作る磁場を該磁気
シールド体で吸収することにより達成される。The above object is achieved by surrounding the filter with a magnetic shield body and absorbing the magnetic field generated by the air-core coil with the magnetic shield body.
【００１３】本発明の磁気分離装置は、空心電磁石とそ
の磁場内に磁性細線を充填した高勾配磁気フィルタの磁
性粒子吸着手段を内蔵した円筒状縦型容器を配置し、該
フィルタで原水中の磁性粒子を吸着除去する磁気分離装
置において、該フィルタ再生時に該フィルタの外側、該
空心電磁石の内側に磁気シールド体と該磁気シールド体
を移動できる移動手段を設け、磁気シールド体移動後に
該フィルタに吸着した磁性粒子を離脱、洗浄除去する洗
浄手段を設けたことを特徴とする。In the magnetic separation apparatus of the present invention, an air-core electromagnet and a cylindrical vertical container having a magnetic particle adsorbing means of a high gradient magnetic filter in which magnetic fine wires are filled in the magnetic field are arranged, and the filter is used to extract the raw water. In a magnetic separation device for adsorbing and removing magnetic particles, a magnetic shield body and a moving means for moving the magnetic shield body are provided outside the filter and inside the air-core electromagnet when the filter is regenerated, and the filter is provided after the magnetic shield body is moved. It is characterized in that a cleaning means for removing and cleaning the adsorbed magnetic particles is provided.
【００１４】[0014]
【作用】磁気シールド体をフィルタの外側、空心コイル
の内側に移動し、空心コイルが作る磁場を磁気シールド
体に吸収する。これにより、フィルタ設置空間の磁場を
小さくする。大きな磁力で捕捉された原水中の磁性粒子
は充填物の磁性細線表面から離脱し、フィルタ上部の洗
浄処理水により、エヤーバブリングを行いながら磁性粒
子を洗浄除去できる。洗浄後再び磁気シールド体をフィ
ルタ下方に移動させ、空心コイルの磁場をフィルタに作
用させ、磁性粒子を含んだ原水を下方から上向流で送水
すると、原水中の磁性粒子は充填物の磁性細線表面に、
大きな磁力で捕捉される。従ってフィルタの洗浄に際し
コイルの電流を切る必要もなく、またコイルの冷却冷媒
を補給する必要もなく洗浄作業を容易に行うことができ
る。The magnetic shield body is moved to the outside of the filter and the inside of the air-core coil to absorb the magnetic field generated by the air-core coil into the magnetic shield body. This reduces the magnetic field in the filter installation space. The magnetic particles in the raw water captured by the large magnetic force are separated from the surface of the magnetic fine wire of the packing, and the cleaning treatment water on the upper part of the filter can wash and remove the magnetic particles while performing air bubbling. After cleaning, the magnetic shield is moved to the lower part of the filter again, the magnetic field of the air-core coil acts on the filter, and the raw water containing the magnetic particles is sent in an upward flow from below. On the surface,
It is captured with a large magnetic force. Therefore, when the filter is cleaned, it is not necessary to turn off the coil current, and it is not necessary to replenish the cooling medium for the coil, so that the cleaning operation can be easily performed.
【００１５】[0015]
【実施例】以下、本発明の一実施例を図２により説明す
る。原水槽１内の磁性粒子を含んだ原水２は弁３を通じ
配管４、下部ヘッダ５を通って固液分離部の円筒状縦型
圧力容器７内に下部より流入する。円筒状縦型圧力容器
７内には、磁性細線を充填した高勾配磁気フィルタ８と
それを挟むように磁極９を上下に対置している。円筒状
縦型圧力容器７の上部は、上部ヘッダ１１に連通し、上
部ヘッダ１１には配管１２、弁１３を通じて処理水槽１
４が連通し、また、配管１５、弁１６を通じて空気タン
ク１７と配管１８、弁１９と通じて原水槽１に連通して
いる。An embodiment of the present invention will be described below with reference to FIG. Raw water 2 containing magnetic particles in a raw water tank 1 flows from a lower portion into a cylindrical vertical pressure vessel 7 of a solid-liquid separating portion through a valve 3, a pipe 4 and a lower header 5 from a lower portion. In the cylindrical vertical pressure vessel 7, a high-gradient magnetic filter 8 filled with magnetic fine wires and magnetic poles 9 are vertically arranged so as to sandwich it. The upper portion of the cylindrical vertical pressure vessel 7 communicates with the upper header 11, and the treated water tank 1 is connected to the upper header 11 through a pipe 12 and a valve 13.
4 communicates with each other, and also communicates with the raw water tank 1 through the pipe 15, the valve 16 and the air tank 17, the pipe 18, and the valve 19.
【００１６】磁場発生装置は、液体ヘリウム槽２０内に
設置され永久電流を流している超伝導空心磁石２１と液
体ヘリウム槽２０を真空断熱したクライオスタット２３
で構成し、フィルタ８を鉄製のヨーク２４で囲み、磁力
線の通路とその漏洩の防止をかねている。The magnetic field generator is a cryostat 23 in which the liquid helium tank 20 and the superconducting air-core magnet 21 which is installed in the liquid helium tank 20 and which carries a permanent current are vacuum-insulated.
The filter 8 is surrounded by an iron yoke 24 to serve as a passage of magnetic force lines and prevent leakage thereof.
【００１７】超伝導空心磁石２１による均一な磁場内に
設置したフィルタ８内の曲率半径の極めて小さな部分を
持つ磁性細線には、その細線表面近傍で局部的な磁場の
疎密ができ大きな磁気勾配が発生する。A magnetic fine wire having a very small radius of curvature in the filter 8 installed in a uniform magnetic field by the superconducting air-core magnet 21 has a large magnetic gradient due to local magnetic field density near the surface of the fine wire. appear.
【００１８】強磁性体、例えば鉄性の円筒状の磁気シー
ルド体２２はロッド２５に固定され上下駆動装置２６
で、磁気シールド体２２は上下に移動することができ
る。A ferromagnetic material, for example, an iron-made cylindrical magnetic shield 22 is fixed to a rod 25 and is vertically driven.
Thus, the magnetic shield body 22 can move up and down.
【００１９】高直勾配磁気フィルタの運転操作は次のよ
うに行われる。◆ （１）永久電流を流した超伝導空心磁石２１により、磁
場が、円筒状縦型圧力容器７内に発生し、磁場は磁極９
によって均一化される。The operation of the high straight gradient magnetic filter is performed as follows. (1) A magnetic field is generated in the cylindrical vertical pressure vessel 7 by the superconducting air-core magnet 21 to which a permanent current is applied, and the magnetic field is the magnetic pole 9
Is equalized by.
【００２０】（２）均一化された磁場によって、フィル
タ８の磁性細線充填物が磁化する。◆ （３）磁場は、磁化された磁性細線充填物のために乱れ
を生じ、局部的に磁束の疎密ができ、高磁場勾配となる
部分が多数発生する。(2) The magnetic filament filling material of the filter 8 is magnetized by the homogenized magnetic field. (3) The magnetic field is disturbed due to the magnetized magnetic wire filler, and the magnetic flux is locally concentrated and dense, and a large number of high magnetic field gradient portions are generated.
【００２１】（４）磁性粒子を含んだ原水２を弁３、配
管４、下部ヘッダ５、伸縮配管６を通じて下方から上向
流で円筒状縦型圧力容器７に送水すると、原水中の磁性
粒子は充填物の磁性細線表面に、大きな磁力で捕捉さ
れ、浄化された原水は伸縮配管１０、上部ヘッダ１１、
配管１２、弁１３を通じて処理水槽１４に送水される。(4) When the raw water 2 containing magnetic particles is fed from the lower side through the valve 3, the pipe 4, the lower header 5 and the expansion / contraction pipe 6 to the cylindrical vertical pressure vessel 7 in an upward flow, the magnetic particles in the raw water are The purified raw water captured with a large magnetic force on the surface of the magnetic fine wire of the filler and purified is the expansion pipe 10, the upper header 11,
Water is sent to the treated water tank 14 through the pipe 12 and the valve 13.
【００２２】（５）磁性粒子が一定量捕捉された後、磁
気分離の性能を回復させるために、図３に示すようにロ
ッド２５に固定した磁気シールド体２２を上下駆動装置
２６で上方に動かし、磁気シールド体２２を超伝導空心
磁石２１の内側に移動し、磁気シールド体２２で超伝導
空心磁石２１が作る磁場を吸収し、フィルタ設置空間の
磁場を小さくする。そして弁３、弁１３を閉じ、弁２７
を開いて円筒状縦型圧力容器７内を逆洗槽２８に連通さ
せる。弁１９、弁１６を開きフィルタ上部から原水の洗
浄処理水と空気タンク１７の空気により、エヤーバブリ
ングを行いながら磁性細線表面に付着した磁性粒子を洗
浄除去し処理水を逆洗槽２８に送水する。(5) After a certain amount of magnetic particles are captured, in order to restore the magnetic separation performance, the magnetic shield 22 fixed to the rod 25 is moved upward by the vertical drive device 26 as shown in FIG. The magnetic shield body 22 is moved to the inside of the superconducting air-core magnet 21, and the magnetic shield body 22 absorbs the magnetic field created by the superconducting air-core magnet 21 to reduce the magnetic field in the filter installation space. Then, the valves 3 and 13 are closed, and the valve 27
And the inside of the cylindrical vertical pressure vessel 7 is communicated with the backwash tank 28. The valves 19 and 16 are opened to wash and remove the magnetic particles adhering to the surface of the magnetic fine wires from the upper part of the filter by washing treated water with the raw water and the air in the air tank 17, and feed the treated water to the backwash tank 28. .
【００２３】（６）逆洗後、図２に示すようにロッド２
５に固定した磁気シールド体２２７を上下駆動装置２６
で下方に動かし、円筒状縦型圧力容器７内に超伝導空心
磁石２１の磁場をかける。そして、弁１６、弁１９、弁
２７を閉じ、弁３、弁１３を開いて円筒状縦型圧力容器
７内に原水２を送水する。(6) After backwashing, as shown in FIG.
The magnetic shield 227 fixed to the No. 5
And the magnetic field of the superconducting air-core magnet 21 is applied to the inside of the cylindrical vertical pressure vessel 7. Then, the valves 16, 19, and 27 are closed, and the valves 3 and 13 are opened to feed the raw water 2 into the cylindrical vertical pressure vessel 7.
【００２４】本実施例によれば、磁石の電流を切らずに
フィルタを洗浄できる。従って、磁石の冷却冷媒を補給
する必要もなく洗浄作業を容易に行うことができる。According to this embodiment, the filter can be washed without turning off the current of the magnet. Therefore, the cleaning work can be easily performed without the need to replenish the cooling medium for the magnet.
【００２５】[0025]
【発明の効果】本発明によれば、磁石の電流を切らずに
フィルタを洗浄できるので、磁石の冷却冷媒を補給する
必要もなく洗浄作業を容易に行うことができる。According to the present invention, since the filter can be cleaned without turning off the magnet current, the cleaning work can be easily performed without supplying the cooling medium for cooling the magnet.
【図１】従来技術の磁気分離装置の運転操作基本フロー
を説明する系統図である。FIG. 1 is a system diagram illustrating a basic operation flow of a conventional magnetic separation device.
【図２】本発明の一実施例の磁気分離装置のフローを説
明する系統図である。FIG. 2 is a system diagram illustrating a flow of a magnetic separation device according to an embodiment of the present invention.
【図３】本発明の一実施例のフィルタ再生時のフローを
説明する系統図である。FIG. 3 is a system diagram illustrating a flow at the time of filter regeneration according to an embodiment of the present invention.
７…円筒状縦型圧力容器、８…高勾配磁気フィルタ、
９、３２…磁極、２１…超伝導空心磁石、２２…磁気シ
ールド体、２５…ロッド、２６…上下駆動装置。7 ... Cylindrical vertical pressure vessel, 8 ... High gradient magnetic filter,
9, 32 ... Magnetic poles, 21 ... Superconducting air-core magnets, 22 ... Magnetic shield bodies, 25 ... Rods, 26 ... Vertical drive devices.
Claims (1)
した高勾配磁気フィルタの磁性粒子吸着手段を内蔵した
円筒状縦型容器を配置し、該フィルタで原水中の磁性粒
子を吸着除去する磁気分離装置において、該フィルタ再
生時に該フィルタの外側、該空心電磁石の内側に磁気シ
ールド体と該磁気シールド体を移動できる移動手段を設
け、磁気シールド体移動後に該フィルタに吸着した磁性
粒子を離脱、洗浄除去する洗浄手段を設けたことを特徴
とする磁気分離装置。1. A cylindrical vertical container having an air-cored electromagnet and a magnetic particle adsorbing means of a high gradient magnetic filter in which magnetic wires are filled in the magnetic field is arranged, and the magnetic particles in the raw water are adsorbed and removed by the filter. In the magnetic separation device, a magnetic shield body and a moving means for moving the magnetic shield body are provided outside the filter and inside the air-core electromagnet when the filter is regenerated, and magnetic particles adsorbed to the filter are separated after the magnetic shield body is moved. A magnetic separation device comprising a cleaning means for cleaning and removing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6281659A JPH08131731A (en) | 1994-11-16 | 1994-11-16 | Magnetic separating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6281659A JPH08131731A (en) | 1994-11-16 | 1994-11-16 | Magnetic separating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08131731A true JPH08131731A (en) | 1996-05-28 |
Family
ID=17642194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6281659A Pending JPH08131731A (en) | 1994-11-16 | 1994-11-16 | Magnetic separating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08131731A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107597422A (en) * | 2017-07-13 | 2018-01-19 | 北方重工集团有限公司 | A kind of particulate dry-dressing machine for weakening magnetic effect loss |
| CN111940128A (en) * | 2020-08-06 | 2020-11-17 | 佛山市杰创科技有限公司 | Pulp grinder beneficiation system and control method thereof |
-
1994
- 1994-11-16 JP JP6281659A patent/JPH08131731A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107597422A (en) * | 2017-07-13 | 2018-01-19 | 北方重工集团有限公司 | A kind of particulate dry-dressing machine for weakening magnetic effect loss |
| CN107597422B (en) * | 2017-07-13 | 2020-03-10 | 北方重工集团有限公司 | Fine particle dry separator for weakening magnetic effect loss |
| CN111940128A (en) * | 2020-08-06 | 2020-11-17 | 佛山市杰创科技有限公司 | Pulp grinder beneficiation system and control method thereof |
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