JPS6014493Y2 - electromagnetic filter - Google Patents

electromagnetic filter

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Publication number
JPS6014493Y2
JPS6014493Y2 JP18030279U JP18030279U JPS6014493Y2 JP S6014493 Y2 JPS6014493 Y2 JP S6014493Y2 JP 18030279 U JP18030279 U JP 18030279U JP 18030279 U JP18030279 U JP 18030279U JP S6014493 Y2 JPS6014493 Y2 JP S6014493Y2
Authority
JP
Japan
Prior art keywords
magnetic
layer
water
electromagnetic
filtration
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.)
Expired
Application number
JP18030279U
Other languages
Japanese (ja)
Other versions
JPS5698319U (en
Inventor
米三 津田
靖 吉田
敏 吉田
Original Assignee
オルガノ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by オルガノ株式会社 filed Critical オルガノ株式会社
Priority to JP18030279U priority Critical patent/JPS6014493Y2/en
Publication of JPS5698319U publication Critical patent/JPS5698319U/ja
Application granted granted Critical
Publication of JPS6014493Y2 publication Critical patent/JPS6014493Y2/en
Expired legal-status Critical Current

Links

Description

【考案の詳細な説明】 本考案は、たとえば火力発電所、原子力発電所の復水中
の磁性懸濁物(以下クラッドと称す)を除去するための
電磁フィルターに関するものである。
[Detailed Description of the Invention] The present invention relates to an electromagnetic filter for removing magnetic suspended matter (hereinafter referred to as cladding) in condensate water of, for example, a thermal power plant or a nuclear power plant.

火力発電所、原子力発電所の復水中に含まれるクラッド
は、Fe301.γ−Fe2O3などの強磁性体酸化鉄
やa −Fe203. y −FeOOH,a −Fe
α■などの常磁性体酸化鉄からなり、それらの組成は一
定せずに把握しにくく、かつ粒子径も1μ以下から20
μ、場合によっては数十μ以上に分布している。
The cladding contained in the condensate of thermal power plants and nuclear power plants is Fe301. Ferromagnetic iron oxides such as γ-Fe2O3 and a-Fe203. y -FeOOH, a -Fe
It consists of paramagnetic iron oxides such as
μ, in some cases distributed over several tens of μ.

従来、このようなりラッドを除去する電磁フィルターと
して、その濾過塔内にウール状磁性体などの磁性充填物
層を形成させ、当該充填物層の上・下端面に、磁性多孔
板を付設し、また濾過塔の周囲に電磁コイルを配置する
とともに、当該電磁コイルの外側を磁性材料からなる枠
体で覆い、前記磁性多孔板と当該枠体からなる内部空間
に磁気回路を形成させて、磁束が外部に発散して漏洩す
るのを防止したものがある。
Conventionally, as an electromagnetic filter for removing such rad, a magnetic packing layer such as a wool-like magnetic material is formed in the filtration tower, and magnetic porous plates are attached to the upper and lower end surfaces of the packing layer. In addition, an electromagnetic coil is arranged around the filter tower, the outside of the electromagnetic coil is covered with a frame made of magnetic material, and a magnetic circuit is formed in the internal space made of the magnetic porous plate and the frame, so that the magnetic flux is There are products that prevent it from escaping and leaking to the outside.

そして、クラッドを含む被処理水を処理するにあたり、
クラッドの除去効率を上げるために、前述のようなりラ
ッドを構成する種々の酸化鉄のうち、常磁性体酸化鉄を
も容易に充填層に捕捉させることのできるような磁場を
発生させることが行なわれている。
When treating water containing crud,
In order to increase the removal efficiency of the cladding, it is necessary to generate a magnetic field that can easily trap paramagnetic iron oxide among the various iron oxides that make up the cladding, as described above, in the packed layer. It is.

しかしながら当該電磁フィルターは被処理水中の強磁性
体酸化鉄の大部分が、充填物層の被処理水の流入側で捕
捉さねて目詰まりが起こりやすく、圧力損失が急激に増
大し、さらに被処理水中に比較的粒子径の大きいクラッ
ドが多く含まれていると、当該クラッドも充填物層の被
処理水の流入側で捕捉されて、目詰まりがより起きりゃ
すくなり、充填物層の逆洗を頻繁に行なわざるをえない
という欠点がある。
However, in this electromagnetic filter, most of the ferromagnetic iron oxide in the water to be treated is not captured on the inflow side of the water to be treated in the packing layer, which tends to cause clogging, resulting in a rapid increase in pressure loss, and further If the treated water contains many cruds with relatively large particle sizes, the cruds will also be captured on the inflow side of the water to be treated in the packed layer, making clogging more likely to occur, and causing the reverse side of the packed layer. The disadvantage is that it requires frequent washing.

本考案は、従来の電磁フィルターにおける、このような
欠点を補うものであり、特に比較的粒径の大きなりラッ
ドが含まれている被処理水を処理する場合に有効であり
、充填物層の外側に前置濾過層を付設することによって
当該濾過層で比較的粒子径の大きいクラッドをあらかじ
め除去し、電磁フィルターの充填物層の目詰まりを防止
することを目的とする。
The present invention compensates for these drawbacks of conventional electromagnetic filters, and is particularly effective when treating water containing relatively large particles of rad. By attaching a pre-filtration layer on the outside, the purpose is to remove crud having a relatively large particle size in the filtration layer in advance and prevent clogging of the filling layer of the electromagnetic filter.

すなわち、本考案は、濾過塔内に磁性充填物層を形成さ
せるとともに当該磁性充填物層の上・下端面にそれぞれ
磁性多孔板を付設腰また濾過塔の周囲に電磁コイルを配
置するとともに当該電磁コイルの外周面を磁性材料から
なる枠体で覆い、前記磁性多孔板と当該枠体とからなる
内部空間に磁気回路を形成させて磁性懸濁物を除去する
電磁フィルターにおいて、前記磁性多孔板の外側の磁気
回路外に前置濾過層を形成させたことを特徴とする電磁
フィルターに関するものである。
That is, the present invention forms a magnetic packing layer inside the filter tower, attaches magnetic porous plates to the upper and lower end surfaces of the magnetic packing layer, respectively, and arranges an electromagnetic coil around the filter tower. In an electromagnetic filter that covers the outer peripheral surface of a coil with a frame made of a magnetic material and forms a magnetic circuit in an internal space made of the magnetic porous plate and the frame to remove magnetic suspended matter, the magnetic porous plate The present invention relates to an electromagnetic filter characterized in that a pre-filtration layer is formed outside the outer magnetic circuit.

以下に本考案を図面にしたがって詳細に説明する。The present invention will be described in detail below with reference to the drawings.

図面は本考案の実施態様の一例を示した概略説明図であ
り、図中、1は電磁フィルターであり、電磁フィルター
1の濾過塔2内にウール状の磁性体の充填物層3を形成
腰当該充填物層3の被処理水の入口側および処理水の出
口側の両端に、水の通路13を有する磁性多孔板4を付
設する。
The drawing is a schematic explanatory diagram showing an example of an embodiment of the present invention. In the drawing, 1 is an electromagnetic filter, and a wool-like magnetic filling layer 3 is formed in the filter tower 2 of the electromagnetic filter 1. A magnetic porous plate 4 having water passages 13 is attached to both ends of the filling layer 3 on the inlet side of the water to be treated and the outlet side of the treated water.

また当該充填物層3に対応して、濾過塔2の外周に電磁
コイル5を設け、電磁コイル5の外周面を磁性材料から
なる枠体6で覆い、前記磁性多孔板4の当該枠体6とか
らなる内部空間に磁気回路を形成させて、磁束が外部に
発散するのを防止する。
In addition, an electromagnetic coil 5 is provided on the outer periphery of the filter tower 2 in correspondence with the packing layer 3, and the outer circumferential surface of the electromagnetic coil 5 is covered with a frame 6 made of a magnetic material, and the frame 6 of the magnetic porous plate 4 is A magnetic circuit is formed in the internal space consisting of the magnetic flux to prevent the magnetic flux from dispersing to the outside.

また、濾過塔2内の被処理水の入口側の磁性多孔板4の
上方であって、前記磁気回路の外側に磁性体のウール状
のステンレスを充填した前置濾過層7を設ける。
Further, a prefiltration layer 7 filled with magnetic wool-like stainless steel is provided above the magnetic porous plate 4 on the inlet side of the water to be treated in the filtration tower 2 and outside the magnetic circuit.

また濾過塔2の上方に、被処理水管8および逆洗排水管
12を接続し、濾過塔2の下方に処理水管9、逆洗水管
10および空気管11を接続する。
Furthermore, a treated water pipe 8 and a backwash drain pipe 12 are connected above the filtration tower 2, and a treated water pipe 9, a backwash water pipe 10, and an air pipe 11 are connected below the filtration tower 2.

本電磁フィルター1において、被処理水を処理するにあ
たり、電磁コイル5を励磁し、被処理水を被処理水管8
より濾過塔2内に流入させる。
In this electromagnetic filter 1, when treating the water to be treated, the electromagnetic coil 5 is excited and the water to be treated is transferred to the water pipe 8.
The water is allowed to flow into the filtration tower 2.

濾過塔2内において、被処理水は、まず前置濾過層7に
流入し、被処理水中の比較的大きい粒径のクラッドを除
去する。
In the filtration tower 2, the water to be treated first flows into the pre-filtration layer 7 to remove crud having a relatively large particle size from the water to be treated.

前置濾過層7は比較的粒径の大きいクラッドを機械的に
除去するが、本実施態様のように前置濾過層7に磁性体
の充填物を用いると、磁気回路かられずかに漏洩した磁
気によって弱く磁化するので、前置濾過層7に非磁性体
のものを充填した場合に比べて、比較的粒径の大きいク
ラッドとともに、比較的粒径が小さいクラッドでも、そ
れが強磁性体粒子であればこれも併せである程度除去す
ることができる。
The pre-filtration layer 7 mechanically removes cladding having a relatively large particle size, but when a magnetic filling is used in the pre-filtration layer 7 as in this embodiment, a small amount of crud leaks from the magnetic circuit. Since it is weakly magnetized by magnetism, compared to the case where the pre-filtration layer 7 is filled with non-magnetic material, even if the cladding has a relatively large particle size and the cladding has a relatively small particle size, it will be ferromagnetic particles. If so, this can also be removed to some extent.

次に前置濾過層7を通過した被処理水を、磁性多孔板4
の通路13を通して充填物層3に流下させ、被処理水中
に残留している比較的粒径の小さいクラッドを充填物層
3に磁気吸引力で捕捉させ、処理水を処理水管9より流
出する。
Next, the water to be treated that has passed through the prefiltration layer 7 is transferred to the magnetic porous plate 4.
The treated water flows down to the packed layer 3 through the passage 13, and the crud with a relatively small particle size remaining in the water to be treated is captured by the packed layer 3 by magnetic attraction, and the treated water flows out from the treated water pipe 9.

電磁フィルター1の磁性多孔板4および枠体6によって
磁気回路を形成しているので、充填物層3にクラッドを
効率よく捕捉させることができる。
Since a magnetic circuit is formed by the magnetic porous plate 4 and the frame 6 of the electromagnetic filter 1, the cladding can be efficiently trapped in the filling layer 3.

次に、通水工程の終点は濾過塔2に付設した差圧指示計
(図示せず)で検出し、被処理水の通水を中止して電磁
コイル5への通電を止め、逆洗水管10からの逆洗水と
、空気管11からの空気を濾過塔2内に上昇流で供給し
、この混合流で充填物層3および前置濾過層7を逆洗し
、充填物層3および前置濾過層7に捕捉させたクラッド
を逆洗排水とともに逆洗排水管12から排出する。
Next, the end point of the water flow process is detected by a differential pressure indicator (not shown) attached to the filtration tower 2, and the flow of the water to be treated is stopped, the energization to the electromagnetic coil 5 is stopped, and the backwash water pipe is Backwash water from 10 and air from air pipe 11 are supplied into the filtration tower 2 in an upward flow, and this mixed flow backwashes the packed layer 3 and the prefiltration layer 7. The crud captured by the pre-filtration layer 7 is discharged from the backwash drain pipe 12 together with the backwash waste water.

本考案の電磁フィルターの前置濾過層に用いる充填物は
、磁性体、あるいは非磁性体であってもよく、またその
形状も、ステンレスあるいは合成樹脂のウール状のもの
、あるいは網状のものを積層したものなどで、たとえば
数十μ程度の粒径のクラッドを除去することができるも
のであればどのような形状であってもよい。
The filling used in the pre-filtration layer of the electromagnetic filter of the present invention may be made of magnetic or non-magnetic material, and its shape may be a layered material such as stainless steel or synthetic resin wool, or a net-like material. Any shape may be used as long as it can remove crud having a grain size of, for example, several tens of microns.

本実施態様のように磁性体のウール状のステンレスを充
填すると、前述したごとく、磁気回路かられずかに漏洩
する磁気によって充填物が磁化され、けの作用により、
比較的粒径が小さいクラッドでもそれが強磁性体であれ
ばある程度除去できるので、ウール状の磁性体を用いる
ことが望ましい。
When the magnetic wool-like stainless steel is filled as in this embodiment, as mentioned above, the filling is magnetized by the magnetism that leaks slightly from the magnetic circuit, and due to the action of the
Even if the cladding has a relatively small particle size, it can be removed to some extent if it is a ferromagnetic material, so it is desirable to use a wool-like magnetic material.

磁性体のウール状のステンレスを充填する場合は、たと
えば線径60〜100μのものを、空隙率80〜90%
、100〜20−で充填するとよい。
When filling with magnetic wool-like stainless steel, for example, the wire diameter is 60 to 100μ and the porosity is 80 to 90%.
, 100 to 20-.

以上説明したように、本考案の電磁フィルターによれば
、充填物層の外側に前置濾過層を設けることによって、
当該前置濾過層で、比較的粒子径の大きいクラッドをあ
らかじめ除去し、充填物層に磁力吸引されるクラッドの
負荷を小さくすることができるので、充填物層の被処理
水の流入側における目詰まりを防止し、圧力損失の急激
な増大を防止し、処理量を増大することができ、かつ効
率よく安定にクラッドを除去するこができる。
As explained above, according to the electromagnetic filter of the present invention, by providing the prefiltration layer outside the packing layer,
The pre-filtration layer can remove crud with relatively large particle sizes in advance and reduce the load of crud that is magnetically attracted to the packed layer. It is possible to prevent clogging, prevent a sudden increase in pressure loss, increase throughput, and efficiently and stably remove crud.

なお、電磁フィルターに被処理水を上昇流で流入させて
処理する場合には、被処理水の入口側の磁性多孔板の下
方であって、磁気回路の外側の前置濾過層を設けるとよ
い。
In addition, when treating the water to be treated by flowing it upward into the electromagnetic filter, it is recommended to provide a pre-filtration layer outside the magnetic circuit and below the magnetic porous plate on the inlet side of the water to be treated. .

【図面の簡単な説明】[Brief explanation of the drawing]

図は本考案の電磁フィルターの実施態様の一例を示した
概略説明図である。 1・・・・・・電磁フィルター、2・・・・・・濾過塔
、3・・曲充填物層、4・・・・・・磁性多孔板、5・
・・・・・電磁コイル、6・・・・・・枠体、7・・・
・・・前置濾過層、8・・・・・・被処理水管、9・・
・・・・処理水管、10・・・・・・逆洗水管、11・
・・・・・空気管、12・・・・・・逆洗排水管、13
・・・・・・通路。
The figure is a schematic explanatory diagram showing an example of an embodiment of the electromagnetic filter of the present invention. DESCRIPTION OF SYMBOLS 1... Electromagnetic filter, 2... Filter tower, 3... Curved packing layer, 4... Magnetic porous plate, 5...
... Electromagnetic coil, 6 ... Frame, 7 ...
...Pre-filtration layer, 8...Water pipe to be treated, 9...
...Processing water pipe, 10... Backwash water pipe, 11.
...Air pipe, 12...Backwash drain pipe, 13
······aisle.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 濾過塔内に磁性充填物層を形成させるとともに当該磁性
充填物層の上下端面にそれぞれ磁性多孔板を付設し、ま
た濾過塔の周囲に電磁コイルを配置するとともに当該電
磁コイルの外周面を磁性材料からなる枠体で覆い、前記
磁性多孔板と当該枠体とからなる内部空間に磁気回路を
形成させて磁性懸濁物を除去する電磁フィルターにおい
て、前記磁性多孔板の外側の磁気回路外に、磁気回路か
ら僅かに漏洩する磁気によって弱く磁化するウール状磁
性充填物層などを、前置濾過層として形成させたことを
特徴とする電磁フィルター。
A magnetic packing layer is formed inside the filtration tower, magnetic porous plates are attached to the upper and lower end surfaces of the magnetic packing layer, and an electromagnetic coil is arranged around the filtration tower, and the outer peripheral surface of the electromagnetic coil is made of magnetic material. In an electromagnetic filter that removes magnetic suspended matter by forming a magnetic circuit in an internal space consisting of the magnetic porous plate and the frame, the electromagnetic filter includes: An electromagnetic filter characterized by forming a wool-like magnetic filling layer, etc., which is weakly magnetized by a slight amount of magnetism leaking from a magnetic circuit, as a pre-filtration layer.
JP18030279U 1979-12-27 1979-12-27 electromagnetic filter Expired JPS6014493Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18030279U JPS6014493Y2 (en) 1979-12-27 1979-12-27 electromagnetic filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18030279U JPS6014493Y2 (en) 1979-12-27 1979-12-27 electromagnetic filter

Publications (2)

Publication Number Publication Date
JPS5698319U JPS5698319U (en) 1981-08-04
JPS6014493Y2 true JPS6014493Y2 (en) 1985-05-09

Family

ID=29690749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18030279U Expired JPS6014493Y2 (en) 1979-12-27 1979-12-27 electromagnetic filter

Country Status (1)

Country Link
JP (1) JPS6014493Y2 (en)

Also Published As

Publication number Publication date
JPS5698319U (en) 1981-08-04

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