JPH10272381A - Repulsion magnetic circuit type device for separation of non-ferrous metal, and rotary rotor used therefor - Google Patents

Repulsion magnetic circuit type device for separation of non-ferrous metal, and rotary rotor used therefor

Info

Publication number
JPH10272381A
JPH10272381A JP9078124A JP7812497A JPH10272381A JP H10272381 A JPH10272381 A JP H10272381A JP 9078124 A JP9078124 A JP 9078124A JP 7812497 A JP7812497 A JP 7812497A JP H10272381 A JPH10272381 A JP H10272381A
Authority
JP
Japan
Prior art keywords
ferrous metal
permanent magnets
magnetic
circuit type
magnetic circuit
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.)
Granted
Application number
JP9078124A
Other languages
Japanese (ja)
Other versions
JP3998750B2 (en
Inventor
Kenzo Takahashi
橋 謙 三 高
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP07812497A priority Critical patent/JP3998750B2/en
Publication of JPH10272381A publication Critical patent/JPH10272381A/en
Application granted granted Critical
Publication of JP3998750B2 publication Critical patent/JP3998750B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Sorting Of Articles (AREA)

Abstract

PROBLEM TO BE SOLVED: To enable a magnetic flux originating from a rotary rotor to efficiently work on an object to be separated. SOLUTION: This repulsion magnetic circuit type separation device is separated in such a manner that a mixed dust to be separated is conveyed using a conveyer belt and a moving magnetic field generated by the rotary rotor provided below the conveyer belt is made to act upon a non-ferrous metal contained in the mixed dust through the conveyer belt, and generate an eddy current in the non-ferrous metal to spring out the non-ferrous metal by a magnetic repulsive force, thereby, the non-ferrous metal is separated. In this case, the rotary rotor has such a construction that plural permanent magnets 3 are arranged in the peripheral direction and are positioned on both end sides of the periphery of the rotary rotor respectively and further, are arranged with the identical poles facing each other between the two adjacent permanent magnets 3. Magnetic fluxes originating from these two permanent magnets 3 become mutually repulsive so that the density of the magnetic fluxes penetrating through the mixed dust outside increases.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、都市ごみ、各種廃
棄物及び自動車スクラップ等のように磁性物と非鉄金属
とその他のごみ等が混り合っている混合ごみ(分別対象
の原材料)を分別するのに使用される反撥磁気回路型非
鉄金属分別装置に関する。より詳しくは、混合ごみ中の
非鉄金属に回転ロータの移動磁界を加え、これにより非
鉄金属に生じる渦電流によって反撥力を生じさせてこの
非鉄金属をはじき飛すようにした反撥磁気回路型非鉄金
属分別装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention separates mixed waste (raw material to be separated) in which a magnetic substance, a non-ferrous metal and other waste are mixed, such as municipal waste, various wastes, and automobile scrap. The present invention relates to a repulsive magnetic circuit type non-ferrous metal sorting apparatus used for performing the above. More specifically, a repelling magnetic circuit type non-ferrous metal in which a moving magnetic field of a rotating rotor is applied to the non-ferrous metal in the mixed garbage to thereby generate a repulsive force due to an eddy current generated in the non-ferrous metal to repel the non-ferrous metal It relates to a sorting device.

【0002】[0002]

【従来の技術】図8は従来の反撥磁気回路型非鉄金属分
別装置の一例を示し、これは、周知のように、分別対象
の原材料としてのごみをベルトで前方へ運び、前方にお
いて磁気の反撥作用によって、非鉄金属、その他のご
み、磁性物がこの順序で遠くに落ちるようにして分別す
るようにしたものである。
2. Description of the Related Art FIG. 8 shows an example of a conventional repulsive magnetic circuit type non-ferrous metal sorting apparatus. As is well known, garbage as a raw material to be separated is carried forward by a belt, and magnetic repulsion occurs at the front. By the action, the non-ferrous metal, other dirt, and magnetic substances are separated in such a manner that they fall away in this order.

【0003】より詳しくは、この装置は、静止系基体と
してのフレーム107を備えている。このフレーム10
7には一対のプーリ104A,104Bが所定間隔(例
えば、1.5m)で回転可能に設けられており、これら
の間に任意数の磁性物かき落し用スクレーパ102が付
いた原材料供給用の供給ベルト103が巻き掛けられて
いる。
More specifically, this device includes a frame 107 as a stationary base. This frame 10
7, a pair of pulleys 104A and 104B are rotatably provided at a predetermined interval (for example, 1.5 m), and an arbitrary number of magnetic material scraping scrapers 102 are provided between the pulleys 104A and 104B. A belt 103 is wound.

【0004】手前側のプーリ104Aの上方には原材料
としてのごみが供給される供給ホッパ108が設けられ
ている。さらにこのプーリ104Aと、前記フレーム1
07に固定されたベルト駆動用のモータ105との間
に、動力伝達ベルト105Aが巻き掛けられている。こ
れにより、このモータ105によってベルト103が図
中矢印A1の方向に、例えば20〜120m/minの
速度で、回転させられることになる。
[0004] Above the pulley 104A on the front side, a supply hopper 108 for supplying dust as a raw material is provided. Further, the pulley 104A and the frame 1
A power transmission belt 105A is wound around a belt driving motor 105 fixed at 07. As a result, the belt 103 is rotated by the motor 105 in the direction of arrow A1 in the figure at a speed of, for example, 20 to 120 m / min.

【0005】前記後側のプーリ104Bの内部空間に
は、前記ベルト103によって搬送されてくる原材料を
図示の3つのシュート109A,109B,109Cに
分別するための永久磁石製回転ロータ101が回転可能
に設けられている。この回転ロータ101は、図8にそ
の横断面としての概略説明図に示すように、合成樹脂等
の外部シェル121で、強磁性マグネットベース123
上に交互にN極とS極をくるようにした永久磁石12
2,122,…をカバーしたものである。この回転ロー
タ101は、フレーム107に固定されたロータ駆動用
モータ106からの動力が動力伝達ベルト106Aによ
って伝えられて、例えば1500rpmの速度で回転さ
せられるようになっている。このプーリ104Bのさら
に前方には、ごみの飛散を防止するカバー110が設け
られている。
In the internal space of the rear pulley 104B, a rotating rotor 101 made of a permanent magnet for separating raw materials conveyed by the belt 103 into three chutes 109A, 109B, and 109C shown in the drawing is rotatable. Is provided. As shown in the schematic explanatory view of the cross section of FIG. 8, the rotating rotor 101 includes an outer shell 121 made of synthetic resin or the like, and a ferromagnetic magnet base 123.
Permanent magnet 12 with N and S poles alternately on top
2, 122,... Power from a rotor driving motor 106 fixed to a frame 107 is transmitted to the rotating rotor 101 by a power transmission belt 106A, and is rotated at a speed of, for example, 1500 rpm. A cover 110 for preventing dust from scattering is provided further forward of the pulley 104B.

【0006】このような装置において、分別対象の原材
料としてのごみを供給ホッパ108に供給すると、この
ごみは供給ベルト103によって前方のプーリ104B
に運ばれる。このプーリ104Bの内側では前述のよう
に永久磁石を有する回転ロータ101が回転している。
この回転ロータ101からの磁力線の作用によって、非
鉄金属は遠くに飛ばされてシュート109A内に落ち、
磁性物はプーリ104Bに引き付けられたまま下側に回
転して磁力の弱まったところで一番手前側のシュータ1
09Cに落ち、その他のごみはプーリ104Bと共に回
転して真中のシュータ109Bに落ち、分別が行われ
る。
In such an apparatus, when refuse as a raw material to be separated is supplied to a supply hopper 108, the refuse is supplied by a supply belt 103 to a front pulley 104B.
Transported to Inside the pulley 104B, the rotating rotor 101 having the permanent magnet is rotating as described above.
By the action of the lines of magnetic force from the rotating rotor 101, the non-ferrous metal is blown away and falls into the chute 109A,
The magnetic material is rotated downward while being attracted to the pulley 104B, and the magnetic force is weakened.
09C, the other refuse rotates together with the pulley 104B, and falls into the center shooter 109B, where separation is performed.

【0007】[0007]

【発明が解決しようとする課題】上記従来のベルト式の
反撥磁気回路型非鉄金属分別装置では、回転ロータ10
1の磁気回路をオープン型としている。つまり、回転ロ
ータ101から外部に飛び出たままの磁束による反撥力
によって、上述のように、ごみを分別するようにしてい
る。しかしながら、空気は磁気抵抗が大きいため、多く
の束磁が積極的な意味で空気中に飛びでてくることはあ
まり期待できない。図6(B)に上記従来の回転ロータ
101における漏れ磁束がどのようになるかの一例を概
念的に示す。(図6(A)は、本発明の場合を示し、こ
れについては後述する。)この図6(B)からわかるよ
うに、複数の永久磁石122,122,…を順次隣接さ
せ、且つ、それらの永久磁石122,122,…の向き
を半径方向にN,S極が並ぶ向きとしたので、一方の永
久磁石122からの磁束は、回転ロータ1から外に出る
ことなく、回転ロータ1内において、ほとんどが隣りの
永久磁石122に入る。つまり、回転ロータ外に出るい
わゆる有効磁束EMは少ないものとなる。例えば、図示
の従来型の回転ロータを用いた場合においては、ベルト
表面の磁束密度は最大3000ガウス程度にしかならな
い。このような低い値では、分別対象物中の非鉄金属に
生じる渦電流値も小さくなる。このため、非鉄金属をは
じき飛す力が小さくなり、分別条件の悪い対象物、例え
ばステンレスや小粒径物等は分別が困難である。
In the above-described conventional belt-type repulsive magnetic circuit type non-ferrous metal sorting apparatus, the rotating rotor 10 is used.
One of the magnetic circuits is an open type. That is, as described above, dust is separated by the repulsive force of the magnetic flux that has jumped out of the rotating rotor 101 to the outside. However, since air has a large magnetic resistance, it is not expected that many magnetic fluxes jump into the air in a positive sense. FIG. 6B conceptually shows an example of how the leakage magnetic flux in the above-described conventional rotary rotor 101 becomes. (FIG. 6A shows the case of the present invention, which will be described later.) As can be seen from FIG. 6B, a plurality of permanent magnets 122, 122,. Are oriented such that the N and S poles are arranged in the radial direction, so that the magnetic flux from one of the permanent magnets 122 does not go out of the rotating rotor 1 and , Mostly enter the adjacent permanent magnet 122. That is, the so-called effective magnetic flux EM that goes out of the rotating rotor is small. For example, when the conventional rotating rotor shown is used, the magnetic flux density on the belt surface is only about 3000 Gauss at the maximum. At such a low value, the value of the eddy current generated in the non-ferrous metal in the separation target also becomes small. For this reason, the force for repelling non-ferrous metals is small, and it is difficult to separate objects having poor sorting conditions, for example, stainless steel and small-sized particles.

【0008】本発明は上記に鑑みてなされたもので、そ
の目的は、永久磁石からの磁束をできるだけ外部に出す
ようにすることにより、分別の効率を高めることにあ
る。
[0008] The present invention has been made in view of the above, and an object of the present invention is to increase the efficiency of sorting by making the magnetic flux from a permanent magnet as external as possible.

【0009】[0009]

【課題を解決するための手段】本発明の反撥磁気回路型
非鉄金属分別装置は、分別対象としての混合ごみをコン
ベアベルトで搬送し、このコンベアベルトの下方に設け
た回転ロータからの移動磁界をこのベルトを貫通させて
前記混合ごみ中の非鉄金属に作用させ、この非鉄金属に
渦電流を生じさせて磁気的な反撥力によってこの非鉄金
属をはじき飛して分別を行う反撥磁気回路型非鉄金属分
別装置において、前記回転ロータを、周方向に複数の永
久磁石を並べ、且つ、これらの永久磁石としては周方向
両端側にそれぞれが位置するものを用いると共に、隣り
合う2つの永久磁石においては同極同士が互いに向い合
う配置とすることによりこれらの2つの永久磁石からの
磁束が互いに発撥し合って外部にある前記混合ごみを貫
通する磁束密度が増えるものとして構成したことを特徴
とするものである。
SUMMARY OF THE INVENTION A repulsion magnetic circuit type non-ferrous metal separation apparatus of the present invention conveys mixed refuse to be separated on a conveyor belt and removes a moving magnetic field from a rotating rotor provided below the conveyor belt. The belt is penetrated to act on the non-ferrous metal in the mixed waste, and an eddy current is generated in the non-ferrous metal to repel the non-ferrous metal by magnetic repulsion to separate the non-ferrous metal and separate the non-ferrous metal to separate the non-ferrous metal. In the separating apparatus, the rotating rotor is formed by arranging a plurality of permanent magnets in the circumferential direction, and using those permanent magnets which are located at both ends in the circumferential direction, and using the same in two adjacent permanent magnets. By arranging the poles to face each other, the magnetic flux from these two permanent magnets repels each other to reduce the magnetic flux density penetrating through the mixed dust outside. It is characterized in that configured as obtain one.

【0010】本発明の反撥磁気回路型非鉄金属分別装置
用回転ローラは分別対象としての混合ごみをコンベアベ
ルトで搬送し、このコンベアベルトの下方からの移動磁
界をこのベルトを貫通させて前記混合ごみ中の非鉄金属
に作用させ、この非鉄金属に渦電流を生じさせて磁気的
な反撥力によってこの非鉄金属をはじき飛して分別を行
う反撥磁気回路型非鉄金属分別装置に使用する、前記移
動磁界を発生させる回転ローラであって、周方向に複数
の永久磁石を並べ、且つ、これらの永久磁石としては周
方向両端側にそれぞれが位置するものを用いると共に、
隣り合う2つの永久磁石においては同極同士が互いに向
い合う配置とすることによりこれらの2つの永久磁石か
らの磁束が互いに発撥し合って外部にある前記混合ごみ
を貫通する磁束密度が増えるものとして構成したことを
特徴とするものである。
The revolving magnetic roller type non-ferrous metal sorting apparatus of the present invention conveys mixed refuse to be separated on a conveyor belt and passes a moving magnetic field from below the conveyor belt through the belt to pass the mixed refuse. The moving magnetic field used in a repulsion magnetic circuit type non-ferrous metal separation device that acts on non-ferrous metal in the medium, generates an eddy current in the non-ferrous metal, and repels and separates the non-ferrous metal by magnetic repulsion. A rotating roller that generates a plurality of permanent magnets arranged in the circumferential direction, and those permanent magnets that are located at both ends in the circumferential direction are used,
The two adjacent permanent magnets are arranged such that the same poles face each other, so that the magnetic fluxes from these two permanent magnets repel each other to increase the magnetic flux density penetrating the mixed dust outside. It is characterized by having comprised as.

【0011】[0011]

【発明の実施の形態】図1〜図5を参照して本発明の実
施の形態を説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

【0012】図1〜図5は、本発明の特徴部分としての
回転ロータを示すもので、図1及び図4は分離状態の斜
視図及び側面図、図2は図1中のマグネットベースの斜
視図、図3及び図5は組立状態の正面図及び側面図であ
る。
1 to 5 show a rotating rotor as a characteristic part of the present invention. FIGS. 1 and 4 are perspective views and side views of a separated state, and FIG. 2 is a perspective view of a magnet base in FIG. FIGS. 3, 3 and 5 are a front view and a side view in an assembled state.

【0013】図1、図2からわかるように、この装置は
ステンレス(例えばSUS304),Cu,Al,しん
ちゅう等の非磁性材で構成したマグネットベース1を有
する。このマグネットベース1は、特に図2からわかる
ように、むく状に一体に構成されたもので、ほぼ円柱状
の本体とその両端の回転軸1a,1aを有する。この本
体は周方向に所定間隔で設けた複数の突条1b,1b,
…を有する。これらの突条1b,1b,…間に作られる
溝1c,1c,…は、特に図3からわかるように、永久
磁石3,3,…を収納するためのものである。この永久
磁石3,3,…のうち長手方向に並ぶものは、特に図1
からわかるように、長手方向に所定の間隔で複数個並べ
られて磁石列3Aを作っている。この磁石列3Aは図で
は6列用いられる。つまり、6列の磁石列3Aが、図4
からわかる溝1c,1c,…に、図5に示す様に、嵌め
込まれる。これらの各永久磁石3A,3A,…をマグネ
ットベース1に固定するため、各マグネット押え板5,
5,…がマグネットベース1にそれぞれ2つのボルト
7,7で固定される。即ち、長手方向に走るマグネット
押え板5,5,…を図3に示すように放射状に並べ、各
押え板5を、長手方向に隣り合う永久磁石3と永久磁石
3の間の隙間9,9(図1参照)を通して、図5からわ
かるように、マグネットベース1に締着することによ
り、永久磁石3,3,…はマグネットベース1に固定さ
れる。これらの永久磁石3,3,…は、特に図3からわ
かるように、N,S極が周方向に並び、且つ、隣り合う
もの同士においては同極が向い合うように配置する。
As can be seen from FIGS. 1 and 2, this apparatus has a magnet base 1 made of a non-magnetic material such as stainless steel (for example, SUS304), Cu, Al, brass or the like. As can be seen particularly from FIG. 2, the magnet base 1 is integrally formed in a solid shape, and has a substantially cylindrical main body and rotation shafts 1a, 1a at both ends thereof. The main body includes a plurality of ridges 1b, 1b,
... The grooves 1c, 1c,... Formed between these ridges 1b, 1b,... Are for accommodating the permanent magnets 3, 3,. Among the permanent magnets 3, 3,... Arranged in the longitudinal direction, in particular, FIG.
As can be seen from the figure, a plurality of magnets 3A are arranged at predetermined intervals in the longitudinal direction. The magnet rows 3A are used in the figure in six rows. That is, the six magnet rows 3A are
Are inserted into the grooves 1c as shown in FIG. In order to fix these permanent magnets 3A, 3A,.
Are fixed to the magnet base 1 with two bolts 7, 7, respectively. That is, the magnet holding plates 5, 5, ... running in the longitudinal direction are arranged radially as shown in Fig. 3, and each holding plate 5 is provided with a gap 9, 9 between the permanent magnets 3 adjacent in the longitudinal direction. 5 (see FIG. 1), the permanent magnets 3, 3,... Are fixed to the magnet base 1 by being fastened to the magnet base 1, as can be seen from FIG. The permanent magnets 3, 3,... Are arranged such that the N and S poles are arranged in the circumferential direction, and that adjacent magnets face the same poles, as can be seen particularly from FIG.

【0014】永久磁石3,3,…の固定と同時に、周方
向に並ぶ永久磁石3と永久磁石3の間の縦溝11,1
1,…に横断面がくさび状で且つ長尺状のポールピース
13,13,…が挟み込まれるようにする。このポール
ピース13はSS400やS20Cと呼ばれる炭素鋼
や、純鉄等の強磁性材によって、特に図1からわかるよ
うに、横断面がくさび状で且つ長尺状のものとして構成
されたものである。これらのポールピース13,13,
…を図4のように縦溝11,11,…に位置させて、上
述のように、押え板5を貫通させたボルト7,7,…を
マグネットベース1に締着する。これらのポールピース
13,13,…の内側の先端は組み立て時において、特
に図4からわかるように、突条1b,1b,…の表面に
当接する。この状態において、両端にサイドプレート1
5,15を嵌め合わせる。つまり、サイドプレート1
5,15を、それらの軸穴15a,15aに回転軸1
a,1aが挿入された状態に、サイドプレート15,1
5とマグネットベース1とを組み立てる。この状態にお
いて、図1からわかるように、サイドボルト17,1
7,…をサイドプレート15,15を貫通させ、この状
態でサイドボルト17,17,…をポールピース13,
13,…の端面に締着する。ポールピース13,13及
びボルト17,17はそれぞれ6つずつある。また、永
久磁石列3Aも6列ずつある。そして、回転ロータは、
上述のように、半径方向のボルト7,7,…と軸方向の
サイドボルト17,17,…によって前記の各部材が一
体化されて構成される。
At the same time as the fixing of the permanent magnets 3, 3,..., The longitudinal grooves 11, 1 between the permanent magnets 3 arranged in the circumferential direction.
The pole pieces 13, 13, ... having a wedge-shaped cross section and an elongated shape are sandwiched between the pole pieces 13, 1, .... The pole piece 13 is made of carbon steel called SS400 or S20C or a ferromagnetic material such as pure iron, and has a wedge-shaped cross section and a long shape as can be seen particularly from FIG. . These pole pieces 13, 13,
Are positioned in the longitudinal grooves 11, 11, as shown in FIG. 4, and the bolts 7, 7,... Penetrating the holding plate 5 are fastened to the magnet base 1 as described above. At the time of assembling, the inner tips of the pole pieces 13, 13,... Come into contact with the surfaces of the ridges 1b, 1b,. In this state, the side plates 1
Fit 5,15. That is, the side plate 1
5 and 15 are inserted into the shaft holes 15a and 15a.
a, 1a are inserted, and the side plates 15, 1 are inserted.
5 and the magnet base 1 are assembled. In this state, as can be seen from FIG.
.. Penetrate the side plates 15, 15, and in this state, the side bolts 17, 17,.
13. Fasten to the end face of. There are six pole pieces 13, 13 and six bolts 17, 17, respectively. There are also six permanent magnet rows 3A. And the rotating rotor is
As described above, the above-described members are integrally formed by the radial bolts 7, 7,... And the axial side bolts 17, 17,.

【0015】上記したように、本発明の実施形態によれ
ば、特に図5からわかるように、永久磁石3,3,…を
周方向に並べ、且つ、両極が周方向に位置するようにす
ると共に隣り合う永久磁石3,3においては同極同士が
対向するようにしたので、永久磁石3,3の間に高透磁
率のポールピース13を配置したことと相俟って、図6
(A)に示したように、隣り合う2つの永久磁石3,3
の磁束についてみれば、それらは互いに反撥し合って、
そのほとんどがポールピース13を介して外部に出るこ
ととなる。つまり、外部に出る有効磁束EMが著しく増
大することになる。このことは、従来例についての磁束
の状態を示した図6(B)との比較によっても明らかで
ある。そして、外部に出る有効磁束EMが図7に示すシ
ステムにおいて分別対象としてのごみに有効に作用し、
ごみの分別が高効率に行われることとなる。
As described above, according to the embodiment of the present invention, as can be seen particularly from FIG. 5, the permanent magnets 3, 3,... Are arranged in the circumferential direction, and both poles are positioned in the circumferential direction. In addition, since the same poles of the adjacent permanent magnets 3 are opposed to each other, the pole pieces 13 having high magnetic permeability are arranged between the permanent magnets 3, 3.
As shown in (A), two adjacent permanent magnets 3, 3
In terms of the magnetic flux, they repel each other,
Most of them go outside through the pole piece 13. That is, the effective magnetic flux EM that goes to the outside is significantly increased. This is clear from comparison with FIG. 6B showing the state of the magnetic flux in the conventional example. Then, the effective magnetic flux EM that goes out acts effectively on the refuse as a separation target in the system shown in FIG.
Waste separation will be performed with high efficiency.

【0016】以上のことをことばを変えていえば次の通
りである。
[0016] The above can be changed as follows.

【0017】図6(B)に示す従来型のものは、隣り合
う異極性マグネット(122,122)間に分布する磁
束が多く、分別に寄与する有効磁束(マグネット上方の
磁束)が減じられ、一般には有効磁束密度は3000ガ
ウス程度が限界である。
In the conventional type shown in FIG. 6B, a large amount of magnetic flux is distributed between adjacent different polarity magnets (122, 122), and an effective magnetic flux (magnetic flux above the magnet) contributing to classification is reduced. Generally, the effective magnetic flux density is limited to about 3000 Gauss.

【0018】これに対し、図6(A)の本発明による反
撥磁気回路型のものにおいては、透磁率の高いポールピ
ース13をマグネット3間に配しているため、同極同士
を対向させたマグネット(3,3)から湧き出す磁束
は、ほぼそのほんどがポールピース13を通って外部に
出る。
On the other hand, in the repulsion magnetic circuit type according to the present invention shown in FIG. 6A, the pole pieces 13 having high magnetic permeability are arranged between the magnets 3 so that the same poles are opposed to each other. Almost all of the magnetic flux that springs out of the magnets (3, 3) passes through the pole piece 13 to the outside.

【0019】このためポールピース13の外部上方の磁
束密度は、回転ロータ径400mmのもので約5000
ガウス、300mmのもので約4500ガウスに達す
る。
For this reason, the magnetic flux density above the outside of the pole piece 13 is about 5000 for a rotating rotor having a diameter of 400 mm.
Gauss, about 300mm, reaches about 4500 gauss.

【0020】一般に、分別に寄与する電磁力の大きさ
は、磁束密度の2乗に比例するため、従来型に比して
(5000G/3000G)2 =2.8倍の値を得る。
In general, the magnitude of the electromagnetic force contributing to classification is proportional to the square of the magnetic flux density, so that a value of (5000 G / 3000 G) 2 = 2.8 times as compared with the conventional type is obtained.

【0021】これにより、従来型では分別不可能であっ
た、ステンレス、鉛、又特に粒径の小さな分別対象物、
例えば粒径5mm程度のものまで効率よく分別処理がで
きる。
As a result, stainless steel, lead, and particularly small-sized particles to be separated, which cannot be separated by the conventional type,
For example, it is possible to efficiently perform a separation process for particles having a particle size of about 5 mm.

【0022】上述の例では、回転ローラを、周方向にみ
ていわゆる6極型としたが、8〜30極型、好ましくは
24極型とすることもできる。さらに、各極、つまり磁
石列3Aを3つの磁石3,3,3で構成したが、これも
任意の数とできるのも明らかである。
In the above-described example, the rotary roller is of a so-called six-pole type as viewed in the circumferential direction. Further, although each pole, that is, the magnet array 3A is constituted by three magnets 3, 3, 3, it is apparent that the number of the magnets can be any number.

【0023】なお、マグネットベース2は上述のように
むく状のもののほか、図6に示すように、中空状のマグ
ネットベース20とすることができる。即ち、このマグ
ネットベース20は中空状のボディ21を有し、両端に
は穴をふさぐ端板22,22が、これらの端板22,2
2には回転軸23が、それぞれ溶接されて一体化され
る。このような中空状のものを用いれば材料費が浮くだ
けでなく、重量も軽減化され、搬送も容易となり且つ使
い勝手もよくなる。
The magnet base 2 may be a hollow magnet base 20 as shown in FIG. That is, the magnet base 20 has a hollow body 21, and end plates 22, 22 that cover holes at both ends are provided with these end plates 22, 2.
The rotation shafts 23 are welded to each other and integrated with each other. The use of such a hollow member not only raises the material cost, but also reduces the weight, facilitates transportation, and improves usability.

【0024】[0024]

【発明の効果】本発明によれば、混合ごみに回転磁界を
作用させるための回転ロータの構成を、周方向に並ぶ複
数の永久磁石を隣り合うもの同士においては同極同士を
向い合わせ、さらに、永久磁石間には強磁性材製のポー
ルピースを挟むものとしたので、この回転ロータからの
磁束を効率良く外部に出して分別対象としての混合ごみ
に有効に作用させ、高効率で分別を行わせることができ
る。
According to the present invention, the structure of the rotating rotor for applying a rotating magnetic field to the mixed dust is such that a plurality of permanent magnets arranged in the circumferential direction have the same poles facing each other. Since a ferromagnetic pole piece is sandwiched between the permanent magnets, the magnetic flux from the rotating rotor is efficiently output to the outside to effectively act on the mixed garbage as a separation target, and the separation is performed with high efficiency. Can be done.

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

【図1】本発明に関連する回転ローラの分離状態の斜視
図。
FIG. 1 is a perspective view of a separated state of a rotary roller related to the present invention.

【図2】マグネットベースの斜視図。FIG. 2 is a perspective view of a magnet base.

【図3】その組立状態の正面図。FIG. 3 is a front view of the assembled state.

【図4】本発明に関連する回転ローラの分離状態の側面
図。
FIG. 4 is a side view of the rotating roller related to the present invention in a separated state.

【図5】その組立状態の側面図。FIG. 5 is a side view of the assembled state.

【図6】本発明及び従来例の磁束の状態を示す説明図。FIG. 6 is an explanatory view showing a state of magnetic flux of the present invention and a conventional example.

【図7】本発明のマグネットベースの変形例における分
離状態の斜視図。
FIG. 7 is a perspective view of a modification of the magnet base of the present invention in a separated state.

【図8】装置全体の概略図。FIG. 8 is a schematic diagram of the entire apparatus.

【図9】従来の回転ローラの側面図。FIG. 9 is a side view of a conventional rotary roller.

【符号の説明】[Explanation of symbols]

1 マグネットベース 3 永久磁石 5 マグネット押え板 7 ボルト 9 隙間 11 縦溝 13 ポールピース 15 サイドプレート 17 サイドボルト DESCRIPTION OF SYMBOLS 1 Magnet base 3 Permanent magnet 5 Magnet holding plate 7 Bolt 9 Clearance 11 Vertical groove 13 Pole piece 15 Side plate 17 Side bolt

Claims (10)

【特許請求の範囲】[Claims] 【請求項1】分別対象としての混合ごみをコンベアベル
トで搬送し、このコンベアベルトの下方に設けた回転ロ
ータからの移動磁界をこのベルトを貫通させて前記混合
ごみ中の非鉄金属に作用させ、この非鉄金属に渦電流を
生じさせて磁気的な反撥力によってこの非鉄金属をはじ
き飛して分別を行う反撥磁気回路型非鉄金属分別装置に
おいて、 前記回転ロータを、周方向に複数の永久磁石を並べ、且
つ、これらの永久磁石としては周方向両端側にそれぞれ
が位置するものを用いると共に、隣り合う2つの永久磁
石においては同極同士が互いに向い合う配置とすること
によりこれらの2つの永久磁石からの磁束が互いに発撥
し合って外部にある前記混合ごみを貫通する磁束密度が
増えるものとして構成したしたことを特徴とする反撥磁
気回路型非鉄金属分別装置。
1. A mixed garbage to be separated is conveyed by a conveyor belt, and a moving magnetic field from a rotating rotor provided below the conveyor belt penetrates the belt to act on non-ferrous metal in the mixed garbage. In a repulsion magnetic circuit type non-ferrous metal separation device that generates an eddy current in the non-ferrous metal to repel and separate the non-ferrous metal by magnetic repulsion, the rotating rotor includes a plurality of permanent magnets in a circumferential direction. These permanent magnets are arranged side by side and used at positions on both ends in the circumferential direction, and two adjacent permanent magnets are arranged so that the same poles face each other. Magnetic repulsion circuit type characterized in that the magnetic flux from the outside repels each other to increase the magnetic flux density penetrating the mixed dust outside. Non-ferrous metal sorting equipment.
【請求項2】前記永久磁石のうち周方向に隣り合う2つ
のものの間には強磁性材製のポールピースを挟設したこ
とを特徴とする請求項1記載の反撥磁気回路型非鉄金属
分別装置。
2. A repulsive magnetic circuit type non-ferrous metal sorting apparatus according to claim 1, wherein a pole piece made of a ferromagnetic material is sandwiched between two circumferentially adjacent ones of said permanent magnets. .
【請求項3】前記永久磁石はむく状のマグネットベース
の外周に固定されたことを特徴とする請求項1又は2記
載の反撥磁気回路型非鉄金属分別装置。
3. The repellent magnetic circuit type non-ferrous metal sorting apparatus according to claim 1, wherein the permanent magnet is fixed to an outer periphery of a solid magnet base.
【請求項4】前記永久磁石は中空状のマグネットベース
の外周に固定されたことを特徴とする請求項1又は2記
載の反撥磁気回路型非鉄金属分別装置。
4. The repellent magnetic circuit type non-ferrous metal sorting apparatus according to claim 1, wherein the permanent magnet is fixed to an outer periphery of a hollow magnet base.
【請求項5】前記永久磁石は回転軸方向に複数のものが
並んで磁石列を構成しており、この磁石列が周方向に所
定間隔で複数並んでいることを特徴とする請求項1〜4
の1つに記載の反撥磁気回路型非鉄金属分別装置。
5. The permanent magnet according to claim 1, wherein a plurality of permanent magnets are arranged side by side in a rotation axis direction to form a magnet array, and the plurality of magnet arrays are arranged at predetermined intervals in a circumferential direction. 4
The repulsion magnetic circuit type non-ferrous metal sorting device according to one of the above.
【請求項6】分別対象としての混合ごみをコンベアベル
トで搬送し、このコンベアベルトの下方からの移動磁界
をこのベルトを貫通させて前記混合ごみ中の非鉄金属に
作用させ、この非鉄金属に渦電流を生じさせて磁気的な
反撥力によってこの非鉄金属をはじき飛して分別を行う
反撥磁気回路型非鉄金属分別装置に使用する、前記移動
磁界を発生させる回転ロータであって、 周方向に複数の永久磁石を並べ、且つ、これらの永久磁
石としては周方向両端側にそれぞれが位置するものを用
いると共に、隣り合う2つの永久磁石においては同極同
士が互いに向い合う配置とすることによりこれらの2つ
の永久磁石からの磁束が互いに発揆し合って外部にある
前記混合ごみを貫通する磁束密度が増えるものとして構
成したしたことを特徴とする反撥磁気回路型非鉄金属分
別装置用回転ロータ。
6. A mixed refuse to be separated is conveyed by a conveyor belt, and a moving magnetic field from below the conveyer belt penetrates through the belt to act on the non-ferrous metal in the mixed refuse. A rotating rotor for generating the moving magnetic field, which is used in a repulsion magnetic circuit type non-ferrous metal separation device that generates an electric current and repels and separates the non-ferrous metal by magnetic repulsion, comprising: These permanent magnets are arranged, and those permanent magnets which are located at both ends in the circumferential direction are used, and two adjacent permanent magnets are arranged such that the same poles face each other. The repulsion is characterized in that the magnetic fluxes from the two permanent magnets reciprocate with each other to increase the magnetic flux density penetrating the mixed dust outside. Rotary rotor for magnetic circuit type non-ferrous metal sorting equipment.
【請求項7】前記永久磁石のうち周方向に隣り合う2つ
のものの間には強磁性材製のポールピースを挟設したこ
とを特徴とする請求項6記載の反撥磁気回路型非鉄金属
分別装置用回転ロータ。
7. A repellent magnetic circuit type non-ferrous metal sorting apparatus according to claim 6, wherein a pole piece made of a ferromagnetic material is sandwiched between two circumferentially adjacent ones of said permanent magnets. For rotating rotor.
【請求項8】前記永久磁石はむく状のマグネットベース
の外周に固定されたことを特徴とする請求項6又は7記
載の反撥磁気回路型非鉄金属分別装置用回転ロータ。
8. A rotating rotor for a repulsive magnetic circuit type non-ferrous metal sorting apparatus according to claim 6, wherein said permanent magnet is fixed to an outer periphery of a solid magnet base.
【請求項9】前記永久磁石は中空状のマグネットベース
の外周に固定されたことを特徴とする請求項6又は7記
載の反撥磁気回路型非鉄金属分別装置用回転ロータ。
9. The rotating rotor for a repulsive magnetic circuit type non-ferrous metal sorting apparatus according to claim 6, wherein the permanent magnet is fixed to an outer periphery of a hollow magnet base.
【請求項10】前記永久磁石は回転軸方向に複数のもの
が並んで磁石列を構成しており、この磁石列が周方向に
所定間隔で複数並んでいることを特徴とする請求項6〜
9の1つに記載の反撥磁気回路型非鉄金属分別装置用回
転ロータ。
10. The permanent magnet according to claim 6, wherein a plurality of permanent magnets are arranged side by side in a rotation axis direction to form a magnet array, and the plurality of magnet arrays are arranged at predetermined intervals in a circumferential direction.
9. The rotating rotor for a repulsion magnetic circuit type non-ferrous metal sorting device according to one of the items 9 to 9.
JP07812497A 1997-03-28 1997-03-28 Repulsive magnetic circuit type non-ferrous metal sorting device and rotary rotor used therefor Expired - Lifetime JP3998750B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP07812497A JP3998750B2 (en) 1997-03-28 1997-03-28 Repulsive magnetic circuit type non-ferrous metal sorting device and rotary rotor used therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07812497A JP3998750B2 (en) 1997-03-28 1997-03-28 Repulsive magnetic circuit type non-ferrous metal sorting device and rotary rotor used therefor

Publications (2)

Publication Number Publication Date
JPH10272381A true JPH10272381A (en) 1998-10-13
JP3998750B2 JP3998750B2 (en) 2007-10-31

Family

ID=13653145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP07812497A Expired - Lifetime JP3998750B2 (en) 1997-03-28 1997-03-28 Repulsive magnetic circuit type non-ferrous metal sorting device and rotary rotor used therefor

Country Status (1)

Country Link
JP (1) JP3998750B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001062336A (en) * 1999-08-25 2001-03-13 Altech Corp Sorting method by magnetic force and sorter
TWI446971B (en) * 2010-07-30 2014-08-01
TWI450766B (en) * 2010-07-30 2014-09-01
JP2018165009A (en) * 2017-03-28 2018-10-25 宇部興産株式会社 Method for separating and collecting carbon fiber-reinforced composite material from waste plastic mixture
CN110124858A (en) * 2019-05-14 2019-08-16 马鞍山起劲磁塑科技有限公司 A kind of plane superfines vortex sorting machine
KR20210112019A (en) * 2020-03-04 2021-09-14 주식회사 맥솔 Foreign matter collecttion device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101786745B1 (en) * 2016-01-07 2017-11-15 강원대학교산학협력단 Multistage Eddy Current Selector

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001062336A (en) * 1999-08-25 2001-03-13 Altech Corp Sorting method by magnetic force and sorter
TWI446971B (en) * 2010-07-30 2014-08-01
TWI450766B (en) * 2010-07-30 2014-09-01
JP2018165009A (en) * 2017-03-28 2018-10-25 宇部興産株式会社 Method for separating and collecting carbon fiber-reinforced composite material from waste plastic mixture
CN110124858A (en) * 2019-05-14 2019-08-16 马鞍山起劲磁塑科技有限公司 A kind of plane superfines vortex sorting machine
KR20210112019A (en) * 2020-03-04 2021-09-14 주식회사 맥솔 Foreign matter collecttion device

Also Published As

Publication number Publication date
JP3998750B2 (en) 2007-10-31

Similar Documents

Publication Publication Date Title
US4354930A (en) Device for separating mixture
JPH10272381A (en) Repulsion magnetic circuit type device for separation of non-ferrous metal, and rotary rotor used therefor
US5860532A (en) Material separator
US5207330A (en) Magnetic pulley
JP3429725B2 (en) Magnetic roller and magnetic separator using the same
US6433453B1 (en) Revolving speed increasing apparatus
US5494172A (en) Magnetic pulley assembly
JPH08131953A (en) Method for separation of waste and its apparatus
JP3973721B2 (en) Beltless rotating drum type non-ferrous metal sorting device
JP2000033286A (en) Dry process magnetic separator
JP2000254547A (en) Nonferrous metal screening machine
JP2001121028A (en) Magnetism generating drum and magnetic sorter using the same
US5522513A (en) Separator disc
JP4578595B2 (en) Sorting method and sorter by magnetic force
JPS6324744B2 (en)
JP2874282B2 (en) Non-magnetic metal separation belt conveyor
JPH08141517A (en) Sorting method and apparatus
JP3955927B2 (en) Eddy current type nonferrous metal separator
JP2003080109A (en) Magnetic separator
CA1084451A (en) High intensity magnetic separator rotor
JPS59109257A (en) Screening device
JP4057077B2 (en) Rotating drum type nonmagnetic metal sorting and collecting device
JP3252269B2 (en) Rotary drum type non-magnetic metal sorting and recovery equipment
JP2966263B2 (en) Rotary drum type non-magnetic metal sorting and recovery equipment
JPH04161258A (en) Magnetic separator

Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070615

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070621

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20070713

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070808

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100817

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100817

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110817

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110817

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120817

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130817

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term