JPS62157129A - Electromagnetic type granular material conveying device - Google Patents

Abstract

PURPOSE:To prevent production of granular dust and to enable a device to be mounted in a granular material processing device, by a method wherein a number of electromagnetic force generating coils, connected in series to a core disposed along a conveyance passage for a granular material covered with powder of a magnetic material to control excitation. CONSTITUTION:By controlling excitation of a magnetims generating coil 13, coiled around a core 10, by means of a control device, namely feeding an alternating current of a desired voltage level to each magnetic force generating coil 13 through a voltage regulator 3 in a control device, a magnetic force, the intensity of which is always changed, is generated in the core 10. As a result, when a granular material, the surface of which is covered with powder of a magnetic material, e.g., iron, nickel, cobalt, or their alloy, is fed from the one end of a granular material conveyance passage 11, disposed adjacent to the core 10, through, for example, a feed hopper 12 and the like, the granular material can be conveyed from the one end toward the other end along the conveyance passage 11 by dint of a magnetic force. In this case, control of a voltage regulator 3 of a control device enables easy regulation of the conveyance speed of the granular material, i.e., a conveyance amount, and this constitution enables prevention of production of granular dust and a device to be mounted in a granular processing device.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、例えば耐火物粉末のような粉末を極めて短い
距離搬送するのに利用され得る電磁式粉体搬送装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electromagnetic powder conveying device that can be used to convey powder, such as refractory powder, over extremely short distances.

〔従来の技術〕[Conventional technology]

従来、粉体の搬送にはガス、一般的には空気を用いて圧
送する方法が広く採用されている。例えば、耐火物粉末
の移送においては圧力タンク内に粉体を投入し、圧空、
プロパン、酸素または窒素ガスを用いて配管内を圧送す
る方法がアシ、このような方法は比較的長い距離を搬送
するのに適している。またこのような圧送による搬送法
はそのまま耐火物粉末の吹付けや溶射にも適用されてい
る。Conventionally, a method of pressure-feeding using gas, generally air, has been widely adopted for conveying powder. For example, when transferring refractory powder, the powder is put into a pressure tank, compressed air is used,
The preferred method is to use propane, oxygen, or nitrogen gas to transport the material under pressure through piping, and this method is suitable for transporting relatively long distances. Further, such a conveying method using pressure feeding is also applied directly to spraying and thermal spraying of refractory powder.

〔発明か解決しようとする問題点〕[The problem that the invention attempts to solve]

ところで、空気、プロパン、酸素または９素ガス等を利
用した圧送による従来の粉体の搬送法では、粉塵の発生
を伴い易すく、環境衛生上粉塵公害の問題がある。、ま
たこの種の搬送法は、搬送距離が比較的短い場合Ｖこは
適さない。すなわち、ガスを用いて粉体を極めて短い距
離搬送する場合でもブロータンク、コンプレッサ、貯蔵
タンク、配管あるいは集塵装置が必要となシ、そのため
設備がおおがかシとなシ過ぎ、据付面積も広くな力、高
コストとなる。By the way, the conventional method of transporting powder by pressure feeding using air, propane, oxygen, 9-component gas, etc. tends to generate dust, and there is a problem of dust pollution in terms of environmental hygiene. Also, this type of conveyance method is not suitable when the conveyance distance is relatively short. In other words, even when using gas to transport powder over extremely short distances, blow tanks, compressors, storage tanks, piping, or dust collectors are required, making the equipment too large and requiring a small installation area. Wide range of power and high cost.

ざらに、上記の粉体の搬送法を耐火物粉末の吹付けや溶
射に適用した場合には、ノズルまたはバーナ先端より粉
体が噴出する際に発１％Ｌｔ−伴い、この発塵を完全に
防止することは困難である。Roughly speaking, when the above powder conveyance method is applied to spraying or thermal spraying of refractory powder, 1% Lt- is emitted when the powder is ejected from the nozzle or burner tip, and this dust generation cannot be completely eliminated. It is difficult to prevent this.

そこで、本発明の目的は、空気、プロパン、酸素または
飲累ガス等を利用した圧送による従来の粉体の搬送に伴
う欠点を解消するため、磁力を利用し、粉塵の発生を実
質的に防止できしかもレーザーや溶剤装置のような粉体
処理装置内に容易に組み込むことのできる特に比較的短
い距離の搬送に適した電磁式粉体搬送装置を提供するこ
とにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to utilize magnetic force to substantially prevent the generation of dust, in order to eliminate the drawbacks associated with conventional powder conveyance by pressure conveying using air, propane, oxygen, or mixed gas. It is an object of the present invention to provide an electromagnetic powder conveying device that can be easily incorporated into a powder processing device such as a laser or a solvent device, and is particularly suitable for conveying relatively short distances.

〔問題点を解決するための手段〕[Means for solving problems]

上記の目的を達成するために、本発明による電磁式粉体
搬送装置は、表面を鉄、ニッケル、コバルトまたはこれ
らの合金のような磁、性材の粉末で被覆した粉体の搬送
通路に沿って配置したコアに相互に直列に接続された多
数の磁力発生コイルを設け、上記磁力発生コイルの励磁
を制（ホ）する制御装置を設けたことを特徴としていｚ
０ 好ましくは、上記磁力発生コイルは二つ以上によりコイ
ル組を構成し、各コイル組は互いに直列に接続され得る
。代シに、上記磁力発生コイルは１．−そのうちの半数
をそれぞれ二つ以上のコイルからなるコイル組として構
成し、残りの半数を上記コイル組のコイル数と異なる数
のコイルからなるコイル組として構成し、上記全てのコ
イル組を各々直列に接続するか、または上記磁力発生コ
イルはその半数をそれぞれ直列に接続し、残りの半数を
二つ以上のコイルから成るコイル組に構成し、それぞれ
のコイル組’ｋｉ列に接続する構成とすることもできる
。In order to achieve the above object, an electromagnetic powder conveying device according to the present invention conveys powder whose surface is coated with powder of a magnetic material such as iron, nickel, cobalt or an alloy thereof along a conveying path. A large number of magnetic force generating coils connected in series are provided to the core arranged in the same direction, and a control device is provided to control the excitation of the magnetic force generating coils.
0 Preferably, two or more of the magnetic force generating coils constitute a coil set, and each coil set may be connected to each other in series. Alternatively, the magnetic force generating coil is 1. - Half of them are configured as coil sets each consisting of two or more coils, and the remaining half are configured as coil sets consisting of a number of coils different from the number of coils in the above coil set, and all the above coil sets are connected in series. Alternatively, half of the magnetic force generating coils are connected in series, and the remaining half are configured to form a coil group consisting of two or more coils, and each coil group is connected in 'ki' rows. You can also do that.

また、上節制御装置は電圧調整器、電圧計および電流計
を備え、上記磁力発生コイルの励磁を任意に制御できる
ようにされ得る。Further, the above-mentioned control device may be equipped with a voltage regulator, a voltmeter, and an ammeter, and can arbitrarily control the excitation of the magnetic force generating coil.

〔作用〕[Effect]

このように構成した本発明による電磁式粉体搬送装置に
おいては、コアに巻かれた磁力発生コイルの励磁を制御
装置により適搗に制御することにより、すなわち各磁力
発生コイルに制御装置における電圧訓１整器を介して所
望の電圧レベルの交流電流を供給すると、コア内に大き
さのたえず変化する磁力が発生される。、その結果、コ
アに隣接して配設された粉体の搬送通路の一端から例え
は供給ホッパー等を介して表面を鉄、ニッケル、コバル
トまたはこれらの合金のような磁性材の粉末で被覆した
粉体を供給すると、発生されたシカにより搬送通路に沿
って一端から他端に向って搬送され得る。この場合、ｌ
ｌＪ御装置における電圧酬夛整器を適轟に制御すること
により粉体の搬送速度従って搬送ＪＪｋｔ−容易に随意
に調節することができる。In the electromagnetic powder conveying device according to the present invention configured as described above, the excitation of the magnetic force generating coils wound around the core is suitably controlled by the control device, that is, the voltage training in the control device is applied to each magnetic force generating coil. Supplying an alternating current at the desired voltage level through the regulator creates a magnetic force of constantly varying magnitude within the core. As a result, the surface is coated with powder of a magnetic material such as iron, nickel, cobalt or an alloy thereof from one end of the powder conveying path located adjacent to the core, for example via a feed hopper. When the powder is supplied, it can be transported by the generated deer along the transport path from one end to the other end. In this case, l
By suitably controlling the voltage regulator in the IJ control device, the powder conveyance speed and thus the conveyance JJkt can be easily adjusted at will.

〔実施例〕 以下、添付図面を参照して本発明の実施例について説明
する。[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

第１図には本発明による電磁式粉体搬送装置の全体構成
を概略的に示し、ｌは三相交流電源で、電源スィッチ２
を介して電圧調整器を成すスライダックＪの入力仰に接
続されている。スライダック３の出力は三本のリード１
ｌｉｌｉ１４ａ、弘す、弘Ｃを介して端子盤ｊＫ接続さ
れ、端子盤Ｓは多数のリード線６を介してブロッククで
示す粉体搬送機構に接続されているａまた三本のリー）
＆＋ａｇＱｂ、４Ｃｃには図示したように電圧計ｇおよ
び電流計からなるクランプメータ７が接続されている。FIG. 1 schematically shows the overall configuration of an electromagnetic powder conveying device according to the present invention, where l is a three-phase AC power supply, and power switch 2 is
It is connected to the input terminal of Slidec J, which constitutes a voltage regulator, through the terminal. The output of Slydac 3 is three leads 1
The terminal board S is connected to the powder conveyance mechanism shown in block 14a, Hirosu, and HiroC through a large number of lead wires 6 (also three wires).
A clamp meter 7 consisting of a voltmeter g and an ammeter is connected to &+agQb and 4Cc as shown.

第一図および第３図には粉体搬送機構りの一実加例を示
し、ＩＱは例えば珪素鋼板から成シ得るコアでアシ、こ
のコアＩＯに沿って粉体の搬送通路／／が設けられてお
フ、この搬送通路１７の一端は粉体投入ホッパー／、２
に連通している。コア１０には図示したように、２ダ個
のコイル１３が巻かれているａコア１０、粉体の搬送通
路／ｌおよびコイル１３は、第３図に示すような相互の
位置関係に配置°されている。Figures 1 and 3 show an example of a powder conveyance mechanism, in which IQ is a core made of, for example, a silicon steel plate, and a powder conveyance path // is provided along this core IO. One end of this conveyance passage 17 is connected to the powder input hopper/2.
is connected to. As shown in the figure, the a-core 10, which has two coils 13 wound around it, the powder conveyance path/l, and the coils 13 are arranged in a mutual positional relationship as shown in FIG. has been done.

端子盤５を介しての三本のリード線弘ａ、弘す。Three lead wires are connected through the terminal board 5.

１１ｃと各コイル１３との結線の仕方の一例を第を図に
示す。鉛弘図に示す例では、端子盤Ｓはコイル／３の数
に相応した数すなわち、２を個の端子を備え、各端子は
その左４Ｊｉ１＋に三本のリード線グａ。An example of how to connect the coils 11c and each coil 13 is shown in the figure. In the example shown in the lead diagram, the terminal board S has a number of terminals corresponding to the number of coils/3, that is, 2, and each terminal has three lead wires a to its left.

弘す、ダＣおよび相互接続リード線が図示したように接
続され、またその右倶１に各対応したコイル１３の両端
子がリード線乙により接続されてらる。The coils 13, 1, and the interconnection leads are connected as shown, and both terminals of the corresponding coils 13 are connected to the right end 1 by lead wires 1.

このようにして各コイル１３は互いに直列に接続される
。In this way, each coil 13 is connected in series with each other.

第Ｓ図には三本のリード線ＩＩａ、４！ｂ、４ｃと各コ
イル１３との別の結線の仕方を示す。この場合には各コ
イル１３はコイル組を構成するように接続され、そして
それぞれのコイル組は互いに直列に接続されている。Figure S shows three lead wires IIa, 4! Another way of connecting b, 4c and each coil 13 is shown. In this case, each coil 13 is connected to form a coil set, and each coil set is connected in series with each other.

なお、図示実施例においてコイル／Ｊは７！ｙ個設ける
場合について説明してきたが、こｊは単なる例示のため
だけであって、コイル／、？のＤ′はそれよシ多くても
少なくてもよい。In the illustrated embodiment, the coil/J is 7! The case where y coils are provided has been explained, but j is just for illustrative purposes. D' may be greater or less than that.

次に、図示実施例の具体例について伸・示する。Next, specific examples of the illustrated embodiment will be expanded and shown.

幅３０■、長ざ３００ｗｎ、高さダＯ冑のコアＩＯに一
ダ個のコイル／３ｆ巻き、これらの各コイル１３をｆｚ
７４Ｌ図に示すように端子盤Ｓを介してそれぞれ直列に
接続し、交流電源ｌを入れ、スライダック３を操作して
給電電圧を／　ＯＯＶに上げると、粒径ユＯμ以下の鉄
粉で被覆した耐火物粉末を毎分の搬送１°５５．私ｆ／
ｍｉｎで搬送することができた。この場合、副大物粉末
搬送時のクランプメータ９の指示値はａ、ｉｓｈであシ
、鉄粉被覆量は耐火物粉末重量に対して一〇−添加し、
被覆後の粉末粒径は７０μ以下であった。One coil/3f is wound around the core IO, which has a width of 30mm, a length of 300wn, and a height of 0mm, and each of these coils 13 is fz
As shown in Figure 74L, they are connected in series via the terminal board S, the AC power supply is turned on, and the slider 3 is operated to increase the supply voltage to /OOV. Conveying refractory powder per minute 1°55. I f/
It was possible to transport it at min. In this case, the indicated value of the clamp meter 9 during conveyance of the sub-large powder is a, ish, and the amount of iron powder coating is 10 - added to the weight of the refractory powder.
The powder particle size after coating was less than 70μ.

〔発明の効果〕〔Effect of the invention〕

以上説、明してきたように、本発明による電磁式粉体搬
送装置忙おいては、表面を鉄、ニッケル、コバルトまた
はこれらの合金のような磁性材の粉末で被覆した粉体の
搬送通路に沿って配置したコ。As has been explained and explained above, the electromagnetic powder conveying device according to the present invention has a powder conveying path whose surface is coated with powder of a magnetic material such as iron, nickel, cobalt, or an alloy thereof. Ko placed along.

アに相互に直列に接続された多数の山刃発生９イルを設
け、上記磁力発生コイルの動磁により上記粉体を搬送で
きるように構成しているので、ガスによる搬送の場合の
ように大がかシな設備は必要でなく、極めて短い距離で
も粉体を搬送するととができ、従って例えは吹付は装置
や溶射装置のような粉体処理装置内に容易に組み込むこ
とができ、また搬送は発塵を伴わずに行なうことができ
、環境衛生上からも好ましく、嘔らに搬送にガスを用い
ないため酸化等の反応の恐れが全くない。A large number of blade generators are connected in series to each other, and the powder is conveyed by the dynamic magnetism of the magnetic force generating coil. No bulky equipment is required and the powder can be transported over very short distances, so it can be easily integrated into powder processing equipment such as spraying equipment or thermal spray equipment, and transport This can be carried out without generating dust, which is preferable from the viewpoint of environmental hygiene, and since no gas is used for transportation, there is no fear of reactions such as oxidation.

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

第１図は本発明による電磁式粉体搬送装置の全体構成を
示す概略線図、シー図は第１図の装置における粉体搬送
機構の一実施例を示す概略斜視図、第３図は第２図の粉
体搬送機構の横断面図、謝グ図はコイルの結線形態を示
す結線図、第Ｓ図はコイルの別の結線形態を示す結線図
である。 図中、ｌ：三相交流電源、２：電源スィッチ、３：ｔＥ
Ｅ調整器、ｌＡａ　、ｌｌｂ、４（ｃ　：　リード線、
Ｓ：端子盤、６：リード線、７：粉体搬送機構、ＩＯ＝
コア、ｌ／：粉体の搬送通路、／３：コイル。 嘉２囲 第３図FIG. 1 is a schematic diagram showing the overall configuration of an electromagnetic powder conveying device according to the present invention, a sea view is a schematic perspective view showing an embodiment of the powder conveying mechanism in the device shown in FIG. 3, and FIG. FIG. 2 is a cross-sectional view of the powder conveying mechanism, and FIG. 2 is a wiring diagram showing a coil connection form, and FIG. S is a wiring diagram showing another coil connection form. In the figure, l: three-phase AC power supply, 2: power switch, 3: tE
E adjuster, lAa, llb, 4 (c: lead wire,
S: Terminal board, 6: Lead wire, 7: Powder transport mechanism, IO=
Core, l/: Powder conveyance path, /3: Coil. Ka 2 wall diagram 3

Claims (1)

【特許請求の範囲】 １、表面を鉄、ニッケル、コバルトまたはこれらの合金
のような磁性材の粉末で被覆した粉体の搬送通路に沿つ
て配置したコアに相互に直列に接続された多数の磁力発
生コイルを設け、上記磁力発生コイルの励磁を制御する
制御装置を設けたことを特徴とする電磁式粉体搬送装置
。 ２、上記磁力発生コイルの二つ以上によりコイル組を構
成し、各コイル組を互いに直列に接続した特許請求の範
囲第１項に記載の電磁式粉体搬送装置。 ３、上記磁力発生コイルの数が偶数個であり、そのうち
の半数をそれぞれ二つ以上のコイルからなるコイル組と
して構成し、残りの半数を上記コイル組のコイル数と異
なる数のコイルからなるコイル組として構成し、上記全
てのコイル組を各々直列に接続した特許請求の範囲第１
項に記載の電磁式粉体搬送装置。 ４、上記磁力発生コイルの半数をそれぞれ直列に接続し
、残りの半数を二つ以上のコイルから成るコイル組に構
成し、それぞれのコイル組を直列に接続した特許請求の
範囲第１項に記載の電磁式粉体搬送装置。 ５、上記制御装置が電圧調整器、電圧計および電流計を
備えている特許請求の範囲第１項に記載の電磁式粉体搬
送装置。 ６、表面を鉄、ニッケル、コバルトまたはこれらの合金
のような磁性材の粉末で被覆した搬送すべき粉体が耐火
物粉末である特許請求の範囲第１項に記載の電磁式粉体
搬送装置。[Claims] 1. A large number of cores connected in series to a core disposed along a powder conveyance path whose surface is coated with powder of a magnetic material such as iron, nickel, cobalt, or an alloy thereof. An electromagnetic powder conveyance device comprising a magnetic force generating coil and a control device for controlling excitation of the magnetic force generating coil. 2. The electromagnetic powder conveying device according to claim 1, wherein two or more of the magnetic force generating coils constitute a coil set, and each coil set is connected to each other in series. 3. The number of the magnetic force generating coils is an even number, half of which are configured as coil sets each consisting of two or more coils, and the remaining half are coils consisting of a different number of coils from the number of coils in the above coil group. Claim 1 in which all of the above coil sets are connected in series.
The electromagnetic powder conveyance device described in . 4. According to claim 1, half of the magnetic force generating coils are connected in series, and the remaining half are configured into a coil group consisting of two or more coils, and each coil group is connected in series. electromagnetic powder conveyance device. 5. The electromagnetic powder conveying device according to claim 1, wherein the control device includes a voltage regulator, a voltmeter, and an ammeter. 6. The electromagnetic powder conveying device according to claim 1, wherein the powder to be conveyed is a refractory powder whose surface is coated with powder of a magnetic material such as iron, nickel, cobalt, or an alloy thereof. .