JPH0427450A - Dust collector - Google Patents
Dust collectorInfo
- Publication number
- JPH0427450A JPH0427450A JP2135121A JP13512190A JPH0427450A JP H0427450 A JPH0427450 A JP H0427450A JP 2135121 A JP2135121 A JP 2135121A JP 13512190 A JP13512190 A JP 13512190A JP H0427450 A JPH0427450 A JP H0427450A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- magnetic
- dust
- magnetic pole
- plural projections
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 53
- 239000000843 powder Substances 0.000 claims abstract description 52
- 239000000696 magnetic material Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 8
- 239000006247 magnetic powder Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 11
- 238000005406 washing Methods 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 229910001035 Soft ferrite Inorganic materials 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052596 spinel Inorganic materials 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910018605 Ni—Zn Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Electrostatic Separation (AREA)
Abstract
Description
【発明の詳細な説明】
イ1発明の目的
〔産業上の利用分野〕
本発明は、永久磁石材料やソフトフェライト等の粉末状
の磁性体を、磁気的に捕集する集塵装置に関するもので
ある。[Detailed Description of the Invention] A1. Purpose of the Invention [Field of Industrial Application] The present invention relates to a dust collector that magnetically collects powdered magnetic materials such as permanent magnet materials and soft ferrite. be.
粒子径が0.01μ−〜lll11の範囲の粉末を捕集
する装置は広く実用化され、各分野で汎用されている。Devices for collecting powder having particle diameters in the range of 0.01 μm to 111 μm have been widely put into practical use and are widely used in various fields.
例えばサイクロンは機械式集塵機として最も普及してい
るが、5μ麗以下の粉末を捕集する能力には限界がある
。バグフィルタ−をはじめとするフィルター集塵装置は
、フィルターの選定により数ミクロン以下の粉末まで捕
集出来るが、濾材の材質によって使用温度範囲(−成約
には250℃以下)が限定される上、構造が複雑である
。For example, cyclones are the most popular mechanical dust collectors, but they have a limited ability to collect powder smaller than 5 microns. Filter dust collectors such as bag filters can collect powder down to several microns or less depending on the filter selection, but the temperature range in which they can be used is limited (-250°C or less for closing) depending on the material of the filter medium. The structure is complex.
放電によって発生するイオンを利用する電気集塵機は、
0.1μm以下の各種超微粉末を捕集出来るが、Mn−
Zn系フェライトをはじめとする軟磁性超微粉末の捕集
においては異常放電等のトラブルが生じ、捕集能力が著
しく低下するという欠点を有する。従って、通常は各種
集塵装置を併用し粉末を捕集する方法が取られている。Electrostatic precipitators that use ions generated by electrical discharge are
Although various ultrafine powders of 0.1 μm or less can be collected, Mn-
When collecting soft magnetic ultrafine powder such as Zn-based ferrite, troubles such as abnormal discharge occur, and the collection ability is significantly reduced. Therefore, a method is usually adopted in which various types of dust collectors are used in combination to collect the powder.
しかしながら粉末状の磁性体の場合、高温である、非抵
抗が低い、微粉末である等の条件が重なることも多く、
集塵部分の設備が他の生産等の部分の設備に比して過大
となることもみられ、集塵装置の選定は非常に困難であ
った。However, in the case of powdered magnetic materials, conditions such as high temperature, low non-resistance, and fine powder often overlap.
The equipment for the dust collection section was sometimes found to be too large compared to the equipment for other production areas, making it extremely difficult to select a dust collection device.
本発明は、大部分が磁性体である粉末を捕集するための
集塵装置に関し、従来の各種集塵装置の欠点を除去する
ため、磁石あるいは電磁石を使用した簡単な構造で加工
容易な集塵装置を提供することを目的としている。The present invention relates to a dust collector for collecting powder, most of which is magnetic, and in order to eliminate the drawbacks of various conventional dust collectors, the present invention has a simple structure using magnets or electromagnets, and is easy to process. The purpose is to provide dust equipment.
口1発明の構成
〔課題を解決するための手段〕
本発明者らは、種々実験を重ねた結果、粒子径が0.0
1μm〜100μmの範囲の粉末状の磁性体を、磁石あ
るいは電磁石を使用することにより、連続運転において
も効果的に捕集、回収出来ることがわかった。この集塵
装置は、構造が簡単で加工も容易であるので実用上有益
である。1. Structure of the invention [Means for solving the problem] As a result of various experiments, the present inventors found that the particle size was 0.0.
It has been found that by using a magnet or an electromagnet, it is possible to effectively collect and recover powdered magnetic substances in the range of 1 μm to 100 μm even during continuous operation. This dust collector has a simple structure and is easy to process, so it is useful in practice.
即ち本発明は、
1、粉末状の磁性体を捕集する方法において、粉末捕集
部に、複数の突起を設けた磁極を配置して、含塵ガス中
の磁性粉末を、磁石あるいは電磁石により磁気的に捕集
、回収することを特徴とする集塵装置である。That is, the present invention provides the following features: 1. In a method of collecting powdered magnetic material, a magnetic pole provided with a plurality of protrusions is arranged in a powder collecting part, and magnetic powder in dust-containing gas is collected by a magnet or an electromagnet. This is a dust collector that is characterized by magnetic collection and collection.
2、請求項1記載において磁性体を捕集する部位に、複
数の突起を持つ磁極を2個以上配置して多段補集するこ
とを特徴とする集塵装置である。2. A dust collecting device according to claim 1, characterized in that two or more magnetic poles having a plurality of protrusions are arranged in the part where the magnetic material is collected to collect the magnetic material in multiple stages.
本発明において、含塵ガス導入管路に磁石あるいは電磁
石を配置して粉末状の磁性体を効果的に捕集するには、
含塵ガスの気流の乱れが少なく、含塵気流の通過流速の
小さいことが望ましい。そのためには第1図の磁極の配
置より第2図の磁極の配列の方が効率よく、しかも磁極
が2ケあるために磁性体の粉末の捕集率がよい。In the present invention, in order to effectively collect powdered magnetic material by arranging a magnet or electromagnet in the dust-containing gas introduction pipe,
It is desirable that there is little turbulence in the airflow of the dust-containing gas and that the passing flow rate of the dust-containing airflow is low. For this purpose, the magnetic pole arrangement shown in FIG. 2 is more efficient than the magnetic pole arrangement shown in FIG. 1, and since there are two magnetic poles, the collection rate of magnetic powder is better.
本発明において、磁極に複数の突起を設けたのは、磁極
の単位面積当たりの集塵面積が大きくするためである。In the present invention, the reason why a plurality of protrusions are provided on the magnetic pole is to increase the dust collection area per unit area of the magnetic pole.
反対に突起のない磁極による集塵装置では磁極の単位面
積当たりの集塵面積が小さいために、含塵ガス導入管路
の径が太いこと、含塵ガス濃度が高いこと、含塵気流の
通過速度が大きいこと等の条件下の使用において、
■集塵時間の経過に伴う捕集粉末の付着、堆積が過度に
進行すると、捕集した粉末が再飛散して捕集効率が低下
すること。On the other hand, in dust collectors using magnetic poles without protrusions, the dust collection area per unit area of the magnetic pole is small, so the diameter of the dust-containing gas introduction pipe is large, the concentration of dust-containing gas is high, and the passage of dust-containing airflow is difficult. When used under conditions such as high speeds, (1) If the adhesion and accumulation of collected powder progresses excessively as the dust collection time passes, the collected powder will be scattered again and the collection efficiency will decrease.
■過負荷状態に陥り易く、清浄ガス出口より粉末が排出
されること。■It is easy to get overloaded and powder is discharged from the clean gas outlet.
等の大きな欠点があるためである。これに対して、本発
明による複数の突起を持つ磁極を配置した場合には、磁
極の単位面積当たりの集塵面積が増えるので含塵ガス中
の磁性粉末と磁極との接触確率が上がり、捕集効率が著
しく向上する上、捕集粉末の再飛散も防止出来る。又、
突起部を設けることにより磁力線が集中し、磁性粉の吸
着力が増加することによりガス流による再飛散を防止す
ることが可能となる。This is because there are major drawbacks such as: On the other hand, when the magnetic pole according to the present invention has a plurality of protrusions, the dust collection area per unit area of the magnetic pole increases, so the probability of contact between the magnetic powder in the dust-containing gas and the magnetic pole increases. Not only the collection efficiency is significantly improved, but also the re-scattering of the collected powder can be prevented. or,
Providing the protrusion concentrates the lines of magnetic force and increases the adsorption force of the magnetic powder, thereby making it possible to prevent re-scattering by the gas flow.
又、本発明において複数の突起を持つ磁極を2個以上配
置したのは、含塵ガスを集塵装置内に強制的に導入した
場合に、1個では磁極に補修された粉末を回収する際に
清浄ガス出口より粉末が排出される場合があるが、複数
の突起を持つ磁極を2個以上配置した場合には、再飛散
した粉末をも捕集することが出来、捕集効率の向上が図
れるためである。Furthermore, in the present invention, the reason why two or more magnetic poles having a plurality of protrusions are arranged is that when dust-containing gas is forcibly introduced into the dust collector, one magnetic pole will not be enough to recover the repaired powder from the magnetic pole. However, if two or more magnetic poles with multiple protrusions are arranged, the re-dispersed powder can also be collected, improving collection efficiency. This is because it can be achieved.
本発明において、使用する粉末を永久磁石材料やソフト
フェライト材料等の磁性体としたのは、他の磁性を持た
ない材質の粉末では、磁石あるいは電磁石による捕集が
行えないためである。In the present invention, the powder used is a magnetic material such as a permanent magnet material or a soft ferrite material because powders of other non-magnetic materials cannot be collected by magnets or electromagnets.
(実施例1)
第1図に、粉末捕集部に複数の突起を持つ磁極を配置し
た集塵装置の実施例1を示す。第1図に示すように、複
数の突起を持つ磁極1は、ダストホッパー2と清浄ガス
出口ダクト4の分岐点に配置した。又、粉末捕集効果を
上げるために整流板5、フラップ6を配置している。(Example 1) FIG. 1 shows Example 1 of a dust collector in which a magnetic pole having a plurality of protrusions is arranged in a powder collecting section. As shown in FIG. 1, a magnetic pole 1 having a plurality of protrusions was placed at a junction between a dust hopper 2 and a clean gas outlet duct 4. Further, a current plate 5 and a flap 6 are arranged to improve the powder collection effect.
ここで、粒子径が0.01μ!l〜100μmの範囲の
Sm−Go系磁石材料を含塵ガス入口ダクト3より集塵
装置内に導入した。第1表に清浄ガス出口ダクト4より
排出された粉末の回収結果を示す。Here, the particle size is 0.01μ! A Sm-Go magnet material having a diameter in the range of 1 to 100 μm was introduced into the dust collector through the dust-containing gas inlet duct 3. Table 1 shows the results of collecting the powder discharged from the clean gas outlet duct 4.
以下余白 第1表 表中の符号は、回収された粉末の程度を表す。Margin below Table 1 The codes in the table represent the extent of powder recovered.
O:認められず
△:わずかに認められる
×二明らかに認められる
本発明の粉末捕集部に複数の突起を持つ磁極を配置した
集塵装置では、10μ園以下の粒子径における粉末捕集
の効果が顕著に向上している。O: Not observed △: Slightly observed ×2 Clearly observed In the dust collector of the present invention in which a magnetic pole with a plurality of protrusions is arranged in the powder collecting part, it is difficult to collect powder with a particle size of 10 μm or less. The effectiveness has been significantly improved.
(実施例2)
第2図に、複数の突起を持つ磁極を2個以上配置した集
塵装置の実施例2を示す。第2図に示すように、ブロワ
−7により強制導入した含塵ガス中の粉末は、複数の突
起を持つ磁極8により一次捕集され、更に複数の突起を
持つ磁極9により二次捕集され回収される。(Example 2) FIG. 2 shows Example 2 of a dust collector in which two or more magnetic poles having a plurality of protrusions are arranged. As shown in Fig. 2, the powder in the dust-containing gas forcibly introduced by the blower 7 is first collected by a magnetic pole 8 having a plurality of protrusions, and then secondarily collected by a magnetic pole 9 having a plurality of protrusions. It will be collected.
捕集粉末の回収は、電磁石12の動作を停止することに
より、ダストホッパー2より行われる。又、粉末捕集効
果を上げるためにフラップ6を配置している。The collected powder is collected from the dust hopper 2 by stopping the operation of the electromagnet 12. Further, a flap 6 is arranged to improve the powder collection effect.
ここで、粒子径が0.01μ璽〜10μ層の範囲のスピ
ネル構造を持つMn−Zn系フェライト粉末を、ブロワ
−7により集塵装置内に強制導入し、粉末捕集の状態を
調べるために清浄ガス出口ダクト4より排出される粉末
を回収した。Here, Mn-Zn ferrite powder having a spinel structure with a particle size in the range of 0.01 μm to 10 μm layer was forcibly introduced into the dust collector using the blower 7, and in order to examine the state of powder collection. The powder discharged from the clean gas outlet duct 4 was collected.
比較のために複数の突起を持つ磁極を1個配置した集塵
装置で粉末回収を行った場合と、電気集塵機を連続運転
した場合についても同様に実施した。第2表に清浄ガス
出口より排出された粉末の回収結果を示す。For comparison, the same procedure was carried out for a case in which powder was collected using a dust collector equipped with a single magnetic pole having a plurality of protrusions, and a case in which an electrostatic precipitator was continuously operated. Table 2 shows the results of collecting the powder discharged from the clean gas outlet.
以下余白 第2表 表中の符号は回収された粉末の程度を示す。Margin below Table 2 The codes in the table indicate the extent of powder recovered.
O:認められず
△:わずかに認められる
×:明らかに認められる
複数の突起を持つ磁極を2個以上配置した集塵装置では
、1μm以下の粒子径における粉末捕集の効果が顕著に
向上している。以上の実施例で示されるように、
(1)粉末捕集部に複数の突起を持つ磁極を配置する。O: Not observed △: Slightly observed ×: Clearly observed In dust collectors in which two or more magnetic poles with multiple protrusions are arranged, the powder collection effect for particle diameters of 1 μm or less is significantly improved. ing. As shown in the above embodiments, (1) A magnetic pole having a plurality of protrusions is arranged in the powder collecting section.
(2)磁性体を捕集する部位に複数の突起を持つ磁極を
2個以上配置する。(2) Two or more magnetic poles each having a plurality of protrusions are arranged in a region where the magnetic material is collected.
ことにより、粉末状の磁性体を効果的に捕集できること
がわかる。It can be seen that the powdered magnetic material can be effectively collected by this method.
本実施例では、永久磁石材料粉末として5ad−Co系
磁石粉末についてのみ述べているが、本発明は磁石ある
いは電磁石による粉末捕集効果を利用しているので、他
の磁石材料であるフェライト磁石、アルニコ磁石、Fe
−Cr−Co磁石、ネオジウムをはじめとする希土類磁
石等の硬磁性材料にも適用出来ることは当然である。In this example, only 5ad-Co based magnet powder is described as the permanent magnet material powder, but since the present invention utilizes the powder collection effect of a magnet or electromagnet, other magnet materials such as ferrite magnets, Alnico magnet, Fe
It goes without saying that it can also be applied to hard magnetic materials such as -Cr-Co magnets and rare earth magnets including neodymium.
又、軟磁性材料粉末の実施例として、スピネル構造を持
っMn−Znフェライト粉末について述べているが、本
発明が対象とする軟磁性材料粉末は種類を限定するもの
ではなく、Ni−Zn系フェライト、Mg系フェライト
、Li系フェライト、マグネタイト等のいかなる軟磁性
フェライトであっても、又鉄粉等の軟磁性金属粉末であ
っても本発明を適用出来ることは容易に考えられること
である。又、本実施例では電磁石による粉末の捕集につ
いてのみ述べているが、磁石で構成した装置を捕集部に
配置しても本発明を適用出来ることは容易に考えられる
ことである。又、本発明による集塵装置とサイクロンを
はじめとする各種集塵装置とを併用することにより粉末
捕集効果の向上が期待出来ることは、当業者であれば容
易に考えられることである。In addition, as an example of the soft magnetic material powder, Mn-Zn ferrite powder having a spinel structure is described, but the soft magnetic material powder targeted by the present invention is not limited to types, and may include Ni-Zn ferrite. It is easy to think that the present invention can be applied to any soft magnetic ferrite such as , Mg ferrite, Li ferrite, magnetite, etc., or to soft magnetic metal powder such as iron powder. Further, although this embodiment describes only the collection of powder by an electromagnet, it is easily possible to apply the present invention even if a device constituted by a magnet is disposed in the collection section. Furthermore, those skilled in the art can easily imagine that the powder collection effect can be expected to be improved by using the dust collector according to the present invention together with various dust collectors such as a cyclone.
ハ9発明の効果
〔発明の効果〕
以上述べたごとく本発明によれば、他種集塵装置の欠点
を除去するために、
(1)粉末捕集部に複数の突起を持つ磁極を配置する。C.9 Effects of the Invention [Effects of the Invention] As described above, according to the present invention, in order to eliminate the drawbacks of other types of dust collectors, (1) a magnetic pole having a plurality of protrusions is arranged in the powder collecting section; .
(2)磁性体を捕集する部位に複数の突起を持つ磁極を
2個以上配置することによって、広範囲の粉末状の磁性
体を効果的に捕集出来、簡単な構造で、且つ加工が容易
であるという利点を持った集塵装置の提供が可能となっ
た。(2) By arranging two or more magnetic poles with multiple protrusions in the part that collects the magnetic material, it is possible to effectively collect a wide range of powdered magnetic materials, and the structure is simple and easy to process. It has become possible to provide a dust collector with the following advantages.
第1図は、本発明による粉末捕集部に複数の突起を持つ
磁極を配置した集塵装置の側面断面図。
第2図は、本発明による複数の突起を持つ磁極を2個以
上配置した集塵装置の側面断面図。
1・・・複数の突起を持つ磁極、2・・・ダストホッパ
ー3・・・含塵ガス入口ダクト、4・・・清浄ガス出口
ダクト、5・・・整流板、6・・・フラップ、7・・・
ブロワ−18・・・磁極(1次捕集側)、9・・・磁極
(2次捕集側)、10・・・スライド弁、11・・・粉
末回収容器、12・・・電磁石。
特許出願人 株式会社トーキン
第
図
第2図FIG. 1 is a side sectional view of a dust collector according to the present invention, in which a magnetic pole having a plurality of protrusions is arranged in a powder collecting section. FIG. 2 is a side sectional view of a dust collector in which two or more magnetic poles having a plurality of protrusions are arranged according to the present invention. DESCRIPTION OF SYMBOLS 1... Magnetic pole with multiple protrusions, 2... Dust hopper 3... Dust-containing gas inlet duct, 4... Clean gas outlet duct, 5... Straightening plate, 6... Flap, 7 ...
Blower 18... Magnetic pole (primary collection side), 9... Magnetic pole (secondary collection side), 10... Slide valve, 11... Powder collection container, 12... Electromagnet. Patent applicant Tokin Co., Ltd. Figure 2
Claims (1)
部に、複数の突起を設けた磁極を配置して、含塵ガス中
の磁性粉末を、磁石あるいは電磁石により磁気的に捕集
、回収することを特徴とする集塵装置。 2、請求項1記載において磁性体を捕集する部位に、複
数の突起を持つ磁極を2個以上配置して磁性体を多段捕
集することを特徴とする集塵装置。[Claims] 1. In a method of collecting powdered magnetic material, a magnetic pole provided with a plurality of protrusions is arranged in the powder collecting part, and the magnetic powder in dust-containing gas is collected by a magnet or an electromagnet. A dust collector characterized by magnetic collection and collection. 2. The dust collecting device according to claim 1, wherein two or more magnetic poles each having a plurality of protrusions are arranged in the part where the magnetic material is collected to collect the magnetic material in multiple stages.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2135121A JPH0427450A (en) | 1990-05-23 | 1990-05-23 | Dust collector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2135121A JPH0427450A (en) | 1990-05-23 | 1990-05-23 | Dust collector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0427450A true JPH0427450A (en) | 1992-01-30 |
Family
ID=15144315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2135121A Pending JPH0427450A (en) | 1990-05-23 | 1990-05-23 | Dust collector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0427450A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7183104B1 (en) * | 2002-08-23 | 2007-02-27 | Duane Morris Llp | Separator and particle detection system |
-
1990
- 1990-05-23 JP JP2135121A patent/JPH0427450A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7183104B1 (en) * | 2002-08-23 | 2007-02-27 | Duane Morris Llp | Separator and particle detection system |
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