WO2011086793A1 - Screens for electromagnetic separator - Google Patents
Screens for electromagnetic separator Download PDFInfo
- Publication number
- WO2011086793A1 WO2011086793A1 PCT/JP2010/071964 JP2010071964W WO2011086793A1 WO 2011086793 A1 WO2011086793 A1 WO 2011086793A1 JP 2010071964 W JP2010071964 W JP 2010071964W WO 2011086793 A1 WO2011086793 A1 WO 2011086793A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screens
- screen
- electromagnetic separator
- iron powder
- spiral plate
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000843 powder Substances 0.000 claims abstract description 22
- 239000000696 magnetic material Substances 0.000 claims abstract description 11
- 230000035515 penetration Effects 0.000 claims description 4
- 238000011084 recovery Methods 0.000 description 7
- 230000000149 penetrating effect Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/0335—Component parts; Auxiliary operations characterised by the magnetic circuit using coils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/06—Filters making use of electricity or magnetism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/28—Magnetic plugs and dipsticks
- B03C1/288—Magnetic plugs and dipsticks disposed at the outer circumference of a recipient
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/16—Magnetic separating gases form gases, e.g. oxygen from air
Definitions
- the present invention relates to a screen for an electromagnetic separator that magnetically deposits iron powder, which is disposed in an electromagnetic separator that magnetizes and separates and removes iron powder in powder.
- Patent Document 1 In order to remove iron powder in powders in the fields of food, chemistry, medicine, etc., as an electromagnetic separator, a screen made of magnetic material is stacked in multiple layers in a cylinder placed in an electromagnet, and an opening at the top of the cylinder A method is known in which the iron powder in the powder supplied from is magnetically attached to a magnetized screen and separated (Patent Document 1).
- FIG. 4 shows an example of an electromagnetic separator using a conventional screen.
- a plurality of screens 22 made of a magnetic material are incorporated in multiple layers in a hollow portion of a cylindrical body 21 whose upper and lower ends are open.
- the projecting edges 23 project from and above the cylindrical body 21 at a required interval, surround the outer periphery of the cylindrical body 21 between the projecting edges 23, and hold the small gap between the electromagnets 24 in the spring 25.
- a vibrator 26 is attached to the lower part of the cylindrical body 21.
- each screen 22 in the cylindrical body is made of a magnetic material and the electromagnet. Since it is located within the magnetic field of 24, it is magnetized. Therefore, if powder is introduced from the upper end opening of the cylindrical body 21, the powder falls while passing through each screen 22 from above while being stirred in the cylindrical body by the action of vibration. During this time, the iron powder remains adsorbed by the magnetized screens 22, and the separated powder is led out from the lower end opening of the cylindrical body 21.
- FIG. 5 is a plan view showing an example of a conventional screen.
- Linear grades 28 made of a magnetic material are arranged in a saw-like pattern at intervals and fixed to a support member 29, and an annular through portion 30 through which an operating rod passes is formed in the center.
- the opening between the grades of the screen 22 is generally in the range of 5 mm to 20 mm.
- the linear grade is formed in a sawtooth shape, so the area where iron powder is magnetized is small, and there is a gap in the outer periphery of the screen.
- the recovery rate of the iron powder is low because the grade becomes thick to increase the magnetic flux density and the number of screens to be multilayered in the cylindrical body is reduced.
- the present invention provides an electromagnetic separator for separating iron powder in powder, increasing the area on which the iron powder is magnetized, increasing the number of screens, and passing the powder without being magnetized on the outer periphery of the screen.
- the present invention provides a screen for an electromagnetic separator capable of reducing the body and improving the recovery rate of iron powder.
- the present invention relates to an electromagnetic material made of a magnetic material that is held in multiple layers in a vertical direction in a cylinder disposed at the center of an electromagnet of an electromagnetic separator and magnetically irons iron powder in powder supplied from an opening at the top of the cylinder.
- an annular penetrating portion through which a holding rod for holding the screen passes is formed at the center of the electromagnetic separator screen, a ring frame is formed on the outside, and a gap is formed in the ring frame toward the penetrating portion.
- a spirally wound spiral plate a corrugated corrugated plate is disposed in the gap between the spiral plates, and corrugated valleys and peaks are fixed to the spiral plate.
- the ring frame and the annular through-hole have the same height, and the height of the spiral plate and the corrugated plate is smaller than that of the ring frame.
- the screen for an electromagnetic separator according to the present invention is formed in a honeycomb shape by a spiral plate and a corrugated plate, so that the magnetic adhesion area of the iron powder is increased, and in addition, the outer periphery of the screen is made up of ring frames. Since they overlap, the amount of powder passing from the outer periphery is greatly reduced, and the iron powder recovery rate can be improved.
- the powder diffuses into the space formed between the screens for the electromagnetic separators stacked one above the other. By doing so, the amount of powder passing straight through the screen can be reduced, so that the iron powder recovery rate can be increased.
- FIG. 1 is a schematic diagram showing a state where a screen for an electromagnetic separator according to the present invention is set in an electromagnetic separator.
- FIG. It is the schematic which shows the conventional electromagnetic separator only for powder. It is a schematic diagram which shows the conventional screen.
- an electromagnetic separator screen (hereinafter referred to as “screen”) 1 is made of a magnetic material. Any magnetic material may be used as long as it is magnetized, but ferritic stainless steel having corrosion resistance and strength is suitable.
- a ring frame 2 is formed by winding a stainless steel band around the outside of the screen 1.
- the outer diameter of the ring frame 2 is, for example, about 30 cm.
- an annular through portion 3 is formed through which a holding rod (FIG. 3) for holding the screen 1 passes.
- a spiral plate 4 is formed which is wound spirally at an interval with one point of the ring frame 2 as a start point (or end point) and an annular penetrating portion 3 as an end point (or start point).
- a continuous corrugated corrugated plate 5 is disposed in the gap between the spiral plates 4, and valleys and peaks of the corrugated plate 5 are fixed to the spiral plate 4 by spot welding.
- a large number of holes are formed in a honeycomb shape by the spiral plate 4 and the corrugated plate 5, and the size of the holes is selected according to the particle size, fluidity, and other characteristics of the powder.
- the ring frame 2 and the penetrating part 3 are set to the same height.
- the spiral plate 4 and the corrugated plate 5 have the same height, but are lower than the ring frame 2 and the penetrating portion 3, and when the screen 1 is overlapped, a space is formed between the upper and lower screens for the powder to diffuse.
- the ring frame 2 and the penetrating portion 3 are about 6 mm
- the spiral plate 4 and the corrugated plate 5 are about 5 mm.
- the conventional slat-like screen was about 23 mm and 20 sheets were stacked
- the screen of this example was about 6 mm in height and 75 sheets could be stacked, and the iron powder recovery rate was improves.
- FIG. 3 shows a state in which the screen 1 of the present invention is set in an electromagnetic separator. Similar to the electromagnetic separator shown in FIG. 4, the magnetic material is formed in the hollow portion of the cylinder 6 whose upper and lower ends are opened. A plurality of screens 1 are held in multiple layers by holding rods 7 in the vertical direction. The cylinder 6 is disposed at the center of the electromagnet 8, and a vibrator 9 is attached to the lower part of the cylinder 6.
- the product outlet 10 and the iron powder outlet 11 are connected to the lower part of the cylinder 6.
- the product discharge port 10 and the iron powder discharge port 11 are switched by rotating a damper 13 with a cylinder 12.
- the powder containing iron powder supplied from the upper part of the cylinder 6 is magnetically attached to the screen 1 magnetized by the electromagnets 8 stacked in multiple layers.
- the product from which the iron powder has been removed passes through the screen 1 and is then discharged from the product discharge port 10 by the damper 13.
- the damper 13 is switched to the iron powder discharge port 11, the electromagnet 8 is turned off, the screen 1 is demagnetized, and the iron powder adhering to the screen 1 is vibrated by the vibration of the vibrator 9. Remove. If necessary, the screen 1 is taken out with the holding rod 7 and cleaned to remove iron powder. The cleaned screen 1 is again inserted into the cylinder 6 and the iron powder separation operation is started.
- Test Example An iron recovery rate obtained by testing a sample A in which the particle size of the powder and the magnetic material are different from each other and a sample B having a particle size smaller than that of the sample A using a conventional sword-like screen and the screen of the present invention is shown.
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
Screens for an electromagnetic separator for separating iron powder contained in powder, the screens having increased iron powder collection efficiency which is obtained by increasing the area to which the iron powder is magnetically attracted and also by increasing the number of the screens to reduce the amount of iron powder which passes through the screens without being magnetically attracted to the outer peripheries of the screens. Screens for an electromagnetic separator are supported in multiple layers in the vertical direction within a tube which is disposed at the center of the electromagnet of the electromagnetic separator, and the screens consist of a magnetic material which magnetically attracts iron powder contained in powder supplied from the opening in the upper part of the tube. The screens (1) for an electromagnetic separator have formed at the center thereof circular through sections (3) through which a holding bar for holding the screens (1) pass, and the screens (1) also have ring frames (2) formed on the outer sides thereof.
Each of the ring frames (2) has disposed therein a spiral plate (4) and a wave-like wave plate (5), the spiral plate (4) being spirally wound toward the through section with a gap between the turns, the wave-like wave plate (5) being disposed between the turns of the spiral plate (4). The crests and troughs of the wave plate (5) are affixed to the spiral plate (4).
Description
本発明は、粉体中の鉄粉を磁着して分離除去する電磁分離機に配置されている、鉄粉を磁着する電磁分離機用スクリーンに関する。
The present invention relates to a screen for an electromagnetic separator that magnetically deposits iron powder, which is disposed in an electromagnetic separator that magnetizes and separates and removes iron powder in powder.
食品、化学、医薬等の分野で粉体中の鉄粉を除去するため、電磁分離機として、電磁石内に配置された筒の中に磁性材料からなるスクリーンを多層に重ね、筒の上部の開口から供給される粉体中の鉄粉を磁化したスクリーンに磁着して分離する方式が知られている（特許文献１）。
In order to remove iron powder in powders in the fields of food, chemistry, medicine, etc., as an electromagnetic separator, a screen made of magnetic material is stacked in multiple layers in a cylinder placed in an electromagnet, and an opening at the top of the cylinder A method is known in which the iron powder in the powder supplied from is magnetically attached to a magnetized screen and separated (Patent Document 1).
図４は従来のスクリーンを利用した電磁分離機の一例を示す図である。図４において、上端及び下端が開口している筒状体２１の中空部に磁性材料からなる複数のスクリーン２２が嵌脱自在な状態にて多層に内蔵されている。筒状体２１の上下に所要間隔で突縁２３を突設し、両突縁２３の間に筒状体２１の外周を取り囲み、かつ相互間に小間隙を保持する状態で電磁石２４がスプリング２５を介在させて取付けられる。筒状体２１の下部にはバイブレーター２６を装着する。
FIG. 4 shows an example of an electromagnetic separator using a conventional screen. In FIG. 4, a plurality of screens 22 made of a magnetic material are incorporated in multiple layers in a hollow portion of a cylindrical body 21 whose upper and lower ends are open. The projecting edges 23 project from and above the cylindrical body 21 at a required interval, surround the outer periphery of the cylindrical body 21 between the projecting edges 23, and hold the small gap between the electromagnets 24 in the spring 25. Can be installed. A vibrator 26 is attached to the lower part of the cylindrical body 21.
図４に示す電磁分離機は、バイブレーター２６を始動させることにより筒状体２１にバイブーシヨンを起動させるとともに、電磁石２４に通電を開始すれば、筒状体内の各スクリーン２２は磁性材料であり且つ電磁石２４の磁界内に位置しているために磁石化する。したがって、筒状体２１の上端開口より粉体を導入すれば、この粉体は筒状体内をバイブレーシヨンの作用にて撹拌されつつ各スクリーン２２を上方から順次通過しながら落下していく。この間に鉄粉は磁石化している各スクリーン２２により吸着されて残存し、分離された粉体は筒状体２１の下端開口部より導出されるものである。一定量又は一定時間の分離操作が終わると、電磁石、バイブレーターへの通電を断つと共に粉体の供給を停止する。そして、スクリーン２２を保持している操作杆２７の上端をもつてこれを上方に引き出す。操作杆２７には、スクリーン２２のすべてが固着されているため、操作杆２７と共に全スクリーン２２は筒状体２１の内部から同時に取出されることになる。引き出されたスクリーン２２は清掃されて鉄粉が除去される。清掃されたスクリーン２２は、再び筒状体２１の内部に装入され、粉体が供給されて鉄粉の分離作業が開始される。
In the electromagnetic separator shown in FIG. 4, when the vibrator 26 is started to start the vibration in the cylindrical body 21 and the electromagnet 24 is energized, each screen 22 in the cylindrical body is made of a magnetic material and the electromagnet. Since it is located within the magnetic field of 24, it is magnetized. Therefore, if powder is introduced from the upper end opening of the cylindrical body 21, the powder falls while passing through each screen 22 from above while being stirred in the cylindrical body by the action of vibration. During this time, the iron powder remains adsorbed by the magnetized screens 22, and the separated powder is led out from the lower end opening of the cylindrical body 21. When the separation operation for a certain amount or a certain time is finished, the energization to the electromagnet and the vibrator is cut off and the supply of the powder is stopped. Then, the upper end of the operation rod 27 holding the screen 22 is held and pulled out upward. Since all of the screen 22 is fixed to the operation rod 27, all the screens 22 are taken out from the inside of the cylindrical body 21 together with the operation rod 27. The drawn screen 22 is cleaned to remove iron powder. The cleaned screen 22 is again inserted into the cylindrical body 21, and the powder is supplied to start the iron powder separation operation.
図５は従来のスクリーンの一例を示す平面図である。磁性材料からなる直線状のグレード２８が間隔をおいてすのこ状に並べられて支持部材２９に固定され、中央に操作杆を通す環状の貫通部３０が形成されている。スクリーン２２のグレード間の目開きは、５ｍｍ～２０ｍｍの範囲が一般的である。
FIG. 5 is a plan view showing an example of a conventional screen. Linear grades 28 made of a magnetic material are arranged in a saw-like pattern at intervals and fixed to a support member 29, and an annular through portion 30 through which an operating rod passes is formed in the center. The opening between the grades of the screen 22 is generally in the range of 5 mm to 20 mm.
従来のスクリーンは、直線状のグレードがすのこ状に形成されているため、鉄粉が磁着される面積が小さく、また、スクリーンの外周は隙間があるために、磁着せずにそのまま通過する粉体もあり、さらに、磁束密度を大きくするためにグレードが厚くなって筒状体内に多層にするスクリーンの枚数が少なくなるので、鉄粉の回収率が低いという問題があった。
In conventional screens, the linear grade is formed in a sawtooth shape, so the area where iron powder is magnetized is small, and there is a gap in the outer periphery of the screen. In addition, there is a problem that the recovery rate of the iron powder is low because the grade becomes thick to increase the magnetic flux density and the number of screens to be multilayered in the cylindrical body is reduced.
そこで、本発明は、粉体中の鉄粉を分離する電磁分離機において、鉄粉が磁着する面積を大きくするとともに、スクリーンの枚数を増やし、スクリーンの外周で磁着せずにそのまま通過する粉体を低減させて鉄粉の回収率を向上させることが可能な電磁分離機用スクリーンを提供するものである。
Therefore, the present invention provides an electromagnetic separator for separating iron powder in powder, increasing the area on which the iron powder is magnetized, increasing the number of screens, and passing the powder without being magnetized on the outer periphery of the screen. The present invention provides a screen for an electromagnetic separator capable of reducing the body and improving the recovery rate of iron powder.
本発明は、電磁分離機の電磁石の中心に配置された筒内に上下方向に多層に保持され、筒の上部の開口から供給される粉体中の鉄粉を磁着する磁性材料からなる電磁分離機用スクリーンにおいて、電磁分離機用スクリーンの中心にスクリーンを保持する保持棒が通る環状の貫通部が形成され、外側にリング枠が形成され、リング枠内に貫通部に向かって間隔をおいて螺旋状に巻かれた螺旋板と、螺旋板の間隙に波状の波板が配置され、波板の谷と山が螺旋板に固定されていることを特徴とする。
The present invention relates to an electromagnetic material made of a magnetic material that is held in multiple layers in a vertical direction in a cylinder disposed at the center of an electromagnet of an electromagnetic separator and magnetically irons iron powder in powder supplied from an opening at the top of the cylinder. In the separator screen, an annular penetrating portion through which a holding rod for holding the screen passes is formed at the center of the electromagnetic separator screen, a ring frame is formed on the outside, and a gap is formed in the ring frame toward the penetrating portion. And a spirally wound spiral plate, a corrugated corrugated plate is disposed in the gap between the spiral plates, and corrugated valleys and peaks are fixed to the spiral plate.
前記構成において、リング枠と環状の貫通部を同一高さとし且つ螺旋板及び波板の高さをリング枠より小さくしたことを特徴とする。
In the above-described configuration, the ring frame and the annular through-hole have the same height, and the height of the spiral plate and the corrugated plate is smaller than that of the ring frame.
本発明の電磁分離機用スクリーンは、螺旋板と波板によりハニカム状に形成されることにより、鉄粉の磁着面積が大きく形成されることになり、加えてスクリーンの外周はリング枠どうしが重なっているため粉体が外周から通過する量が大幅に低減するので、鉄粉の回収率を向上させることが可能となる。
The screen for an electromagnetic separator according to the present invention is formed in a honeycomb shape by a spiral plate and a corrugated plate, so that the magnetic adhesion area of the iron powder is increased, and in addition, the outer periphery of the screen is made up of ring frames. Since they overlap, the amount of powder passing from the outer periphery is greatly reduced, and the iron powder recovery rate can be improved.
また、リング枠と環状の貫通部を同一高さとし且つ螺旋板及び波板の高さをリング枠より小さくすると、上下に重ねた電磁分離機用スクリーンの間に形成される空間に粉体が拡散することによって、スクリーンを直進して通り抜ける粉体の量を低減させることができるので、鉄粉の回収率を上げることができる。
Also, if the ring frame and the annular through-hole are the same height, and the height of the spiral plate and corrugated plate is smaller than the ring frame, the powder diffuses into the space formed between the screens for the electromagnetic separators stacked one above the other. By doing so, the amount of powder passing straight through the screen can be reduced, so that the iron powder recovery rate can be increased.
本発明の実施例について図面を参照しながら説明する。
Embodiments of the present invention will be described with reference to the drawings.
図１において、電磁分離機用スクリーン（以下「スクリーン」という。）１は、磁性材料からなる。磁性材料は磁化するものであればよいが、耐食性及び強度のあるフェライト系ステンレス鋼が適している。
Referring to FIG. 1, an electromagnetic separator screen (hereinafter referred to as “screen”) 1 is made of a magnetic material. Any magnetic material may be used as long as it is magnetized, but ferritic stainless steel having corrosion resistance and strength is suitable.
スクリーン１の外側にステンレス鋼製バンドを巻いてリング枠２が形成される。リング枠２の外径は例えば、３０ｃｍ前後である。スクリーン１の中央に、スクリーン１を保持する保持棒（図３）が通る環状の貫通部３が形成されている。
A ring frame 2 is formed by winding a stainless steel band around the outside of the screen 1. The outer diameter of the ring frame 2 is, for example, about 30 cm. In the center of the screen 1, an annular through portion 3 is formed through which a holding rod (FIG. 3) for holding the screen 1 passes.
リング枠２のある一点を始点（又は終点）にし、環状の貫通部３を終点（又は始点）として間隔をおいて螺旋状に巻かれた螺旋板４が形成されている。螺旋板４の間隙には連続した波状の波板５が配置され、波板５の谷と山は螺旋板４にスポット溶接により固定されている。螺旋板４と波板５により多数の孔がハニカム状に形成されるが、孔の大きさは、粉体の粒度、流動性、その他の特性に応じて選定される。
A spiral plate 4 is formed which is wound spirally at an interval with one point of the ring frame 2 as a start point (or end point) and an annular penetrating portion 3 as an end point (or start point). A continuous corrugated corrugated plate 5 is disposed in the gap between the spiral plates 4, and valleys and peaks of the corrugated plate 5 are fixed to the spiral plate 4 by spot welding. A large number of holes are formed in a honeycomb shape by the spiral plate 4 and the corrugated plate 5, and the size of the holes is selected according to the particle size, fluidity, and other characteristics of the powder.
図２に示すように、リング枠２と貫通部３を同一高さとする。螺旋板４と波板５は同一高さとするが、リング枠２と貫通部３より低い高さとし、スクリーン１を重ねた際に、上下のスクリーンの間に粉体が拡散する空間が形成されるようにする。例えば、リング枠２と貫通部３を約６ｍｍ、螺旋板４と波板５を約５ｍｍとする。高さが従来のすのこ状のスクリーンは約２３ｍｍで２０枚重ねていたのに対して、本実施例のスクリーンは高さが約６ｍｍとなって７５枚重ねることが可能となり、鉄粉回収率が向上する。
As shown in FIG. 2, the ring frame 2 and the penetrating part 3 are set to the same height. The spiral plate 4 and the corrugated plate 5 have the same height, but are lower than the ring frame 2 and the penetrating portion 3, and when the screen 1 is overlapped, a space is formed between the upper and lower screens for the powder to diffuse. Like that. For example, the ring frame 2 and the penetrating portion 3 are about 6 mm, and the spiral plate 4 and the corrugated plate 5 are about 5 mm. Whereas the conventional slat-like screen was about 23 mm and 20 sheets were stacked, the screen of this example was about 6 mm in height and 75 sheets could be stacked, and the iron powder recovery rate was improves.
図３は本発明のスクリーン１を電磁分離機にセットした状態を示すもので、前述の図４に示す電磁分離機と同様に、上端及び下端が開口している筒６の中空部に磁性材料からなる複数のスクリーン１が保持棒７により上下方向に多層に保持される。筒６は電磁石８の中心に配置され、筒６の下部にはバイブレーター９が装着される。
FIG. 3 shows a state in which the screen 1 of the present invention is set in an electromagnetic separator. Similar to the electromagnetic separator shown in FIG. 4, the magnetic material is formed in the hollow portion of the cylinder 6 whose upper and lower ends are opened. A plurality of screens 1 are held in multiple layers by holding rods 7 in the vertical direction. The cylinder 6 is disposed at the center of the electromagnet 8, and a vibrator 9 is attached to the lower part of the cylinder 6.
筒６の下部は、製品排出口１０と鉄粉排出口１１が接続されている。製品排出口１０と鉄粉排出口１１はシリンダ１２でダンパ１３を回転させて切り替える。
The product outlet 10 and the iron powder outlet 11 are connected to the lower part of the cylinder 6. The product discharge port 10 and the iron powder discharge port 11 are switched by rotating a damper 13 with a cylinder 12.
図３において、筒６の上部から内部に供給された鉄粉を含む粉体は、多層に重ねられた、電磁石８により磁化されたスクリーン１に磁着する。鉄粉が除去された製品は、スクリーン１を通過した後、ダンパ１３により製品排出口１０から排出する。所定量、或いは所定時間の処理が終了すると、ダンパ１３を鉄粉排出口１１に切り替え、電磁石８をオフにしてスクリーン１を消磁し、バイブレーター９の振動により、スクリーン１に付着している鉄粉を除去する。必要に応じて、保持棒７でスクリーン１を取り出し、清掃して鉄粉を除去する。清掃されたスクリーン１は、再び筒６の内部に装入され、鉄粉の分離作業が開始される。
In FIG. 3, the powder containing iron powder supplied from the upper part of the cylinder 6 is magnetically attached to the screen 1 magnetized by the electromagnets 8 stacked in multiple layers. The product from which the iron powder has been removed passes through the screen 1 and is then discharged from the product discharge port 10 by the damper 13. When processing of a predetermined amount or a predetermined time is completed, the damper 13 is switched to the iron powder discharge port 11, the electromagnet 8 is turned off, the screen 1 is demagnetized, and the iron powder adhering to the screen 1 is vibrated by the vibration of the vibrator 9. Remove. If necessary, the screen 1 is taken out with the holding rod 7 and cleaned to remove iron powder. The cleaned screen 1 is again inserted into the cylinder 6 and the iron powder separation operation is started.
試験例
粉体と磁性物の粒度が異なる試料Ａ、試料Ａより粒度が小さい試料Ｂについて従来のすのこ状のスクリーンと本発明のスクリーンを用いて試験して求めた鉄分回収率を示す。 Test Example An iron recovery rate obtained by testing a sample A in which the particle size of the powder and the magnetic material are different from each other and a sample B having a particle size smaller than that of the sample A using a conventional sword-like screen and the screen of the present invention is shown.
粉体と磁性物の粒度が異なる試料Ａ、試料Ａより粒度が小さい試料Ｂについて従来のすのこ状のスクリーンと本発明のスクリーンを用いて試験して求めた鉄分回収率を示す。 Test Example An iron recovery rate obtained by testing a sample A in which the particle size of the powder and the magnetic material are different from each other and a sample B having a particle size smaller than that of the sample A using a conventional sword-like screen and the screen of the present invention is shown.
本発明のスクリーンが従来のすのこ状のスクリーンに比べて回収率が向上することが確認された。
It was confirmed that the recovery rate of the screen of the present invention was improved as compared with the conventional slatted screen.
１：スクリーン
２：リング枠
３：貫通部
４：螺旋板
５：波板
６：筒
７：保持棒
８：電磁石
９：バイブレーター
１０：製品排出口
１１：鉄粉排出口
１２：シリンダ
１３：ダンパ
２１：筒状体
２２：スクリーン
２３：突縁
２４：電磁石
２５：スプリング
２６：バイブレーター
２７：操作杆
２８：棒材
２９：支持部材
３０：貫通部 1: Screen
2: Ring frame 3: Penetration part
4: Spiral plate 5: Corrugated plate
6: Tube 7: Holding rod
8: Electromagnet 9: Vibrator 10: Product outlet 11: Iron powder outlet
12: Cylinder
13: Damper 21: Cylindrical body
22: Screen 23: Edge
24: Electromagnet 25: Spring
26: Vibrator 27: Operation
28: Bar material 29: Support member
30: penetration
２：リング枠
３：貫通部
４：螺旋板
５：波板
６：筒
７：保持棒
８：電磁石
９：バイブレーター
１０：製品排出口
１１：鉄粉排出口
１２：シリンダ
１３：ダンパ
２１：筒状体
２２：スクリーン
２３：突縁
２４：電磁石
２５：スプリング
２６：バイブレーター
２７：操作杆
２８：棒材
２９：支持部材
３０：貫通部 1: Screen
2: Ring frame 3: Penetration part
4: Spiral plate 5: Corrugated plate
6: Tube 7: Holding rod
8: Electromagnet 9: Vibrator 10: Product outlet 11: Iron powder outlet
12: Cylinder
13: Damper 21: Cylindrical body
22: Screen 23: Edge
24: Electromagnet 25: Spring
26: Vibrator 27: Operation
28: Bar material 29: Support member
30: penetration
Claims (2)
- 電磁分離機の電磁石の中心に配置された筒内に上下方向に多層に保持され、筒の上部の開口から供給される粉体中の鉄粉を磁着する磁性材料からなる電磁分離機用スクリーンにおいて、電磁分離機用スクリーンの中心にスクリーンを保持する保持棒が通る環状の貫通部が形成され、外側にリング枠が形成され、リング枠内に貫通部に向かって間隔をおいて螺旋状に巻かれた螺旋板と、螺旋板の間隙に波状の波板が配置され、波板の谷と山が螺旋板に固定されていることを特徴とする電磁分離機用スクリーン。 A screen for an electromagnetic separator made of a magnetic material that is held in multiple layers in a vertical direction in a cylinder arranged at the center of the electromagnet of the electromagnetic separator and magnetically adheres iron powder in the powder supplied from the upper opening of the cylinder. In, the annular penetration part through which the holding rod for holding the screen passes is formed in the center of the screen for the electromagnetic separator, the ring frame is formed on the outside, and spirally spaced in the ring frame toward the penetration part. A screen for an electromagnetic separator, wherein a corrugated corrugated plate is disposed in a gap between the spiral plate and the spiral plate, and a valley and a mountain of the corrugated plate are fixed to the spiral plate.
- 前記リング枠と環状の貫通部を同一高さとし且つ螺旋板及び波板の高さをリング枠より小さくしたことを特徴とする請求項１記載の電磁分離機用スクリーン。 The screen for an electromagnetic separator according to claim 1, wherein the ring frame and the annular through-hole have the same height, and the height of the spiral plate and the corrugated plate is smaller than that of the ring frame.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201080061347.7A CN102939164B (en) | 2010-01-14 | 2010-12-08 | Electromagnetic separator screen cloth |
| KR1020127017548A KR20120123043A (en) | 2010-01-14 | 2010-12-08 | Screens for electromagnetic separator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010005985A JP5671755B2 (en) | 2010-01-14 | 2010-01-14 | Electromagnetic separator screen |
| JP2010-005985 | 2010-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011086793A1 true WO2011086793A1 (en) | 2011-07-21 |
Family
ID=44304084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2010/071964 WO2011086793A1 (en) | 2010-01-14 | 2010-12-08 | Screens for electromagnetic separator |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5671755B2 (en) |
| KR (1) | KR20120123043A (en) |
| CN (1) | CN102939164B (en) |
| WO (1) | WO2011086793A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397720A (en) * | 2011-11-18 | 2012-04-04 | 沈阳隆基电磁科技股份有限公司 | Emulsified liquid magnetization filter element |
| CN116748524A (en) * | 2023-06-19 | 2023-09-15 | 海南大学 | Preparation device and preparation method of high-purity nano zero-valent iron |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339090B (en) * | 2013-06-28 | 2017-03-08 | 独立行政法人产业技术综合研究所 | Magnetic separator medium and magnetic separator |
| JP2015060755A (en) * | 2013-09-19 | 2015-03-30 | 日揮触媒化成株式会社 | Method of producing lithium ion secondary battery positive electrode active material |
| CN104028375B (en) * | 2014-06-05 | 2016-04-20 | 鞍山鑫盛矿山自控设备有限公司 | A kind of magnetic control eddy flow ore-dressing plant |
| CN104014422B (en) * | 2014-06-05 | 2016-04-20 | 鞍山鑫盛矿山自控设备有限公司 | A kind of column magnetic separator winding |
| CN104258988B (en) * | 2014-10-13 | 2016-09-07 | 赵宽学 | Electromagnetic type iron remover for slurry |
| JP6283084B2 (en) * | 2015-10-26 | 2018-02-21 | エリーズ マニュファクチュアリング カンパニー | Improved material separation and recovery matrix for dry vibratory magnetic filters |
| KR102171281B1 (en) * | 2016-12-28 | 2020-10-28 | 주식회사 엘지화학 | Electromagnetic Filter and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115610A (en) * | 1980-02-20 | 1981-09-10 | Hitachi Ltd | Electromagnetic filter |
| JPS58107114U (en) * | 1982-01-08 | 1983-07-21 | オルガノ株式会社 | Electromagnetic filter filling |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0143182Y2 (en) * | 1986-04-30 | 1989-12-14 | ||
| JP2009273980A (en) * | 2008-05-13 | 2009-11-26 | National Institute Of Advanced Industrial & Technology | Filter for high inclination magnetic separation |
-
2010
- 2010-01-14 JP JP2010005985A patent/JP5671755B2/en active Active
- 2010-12-08 WO PCT/JP2010/071964 patent/WO2011086793A1/en active Application Filing
- 2010-12-08 CN CN201080061347.7A patent/CN102939164B/en active Active
- 2010-12-08 KR KR1020127017548A patent/KR20120123043A/en not_active Application Discontinuation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115610A (en) * | 1980-02-20 | 1981-09-10 | Hitachi Ltd | Electromagnetic filter |
| JPS58107114U (en) * | 1982-01-08 | 1983-07-21 | オルガノ株式会社 | Electromagnetic filter filling |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397720A (en) * | 2011-11-18 | 2012-04-04 | 沈阳隆基电磁科技股份有限公司 | Emulsified liquid magnetization filter element |
| CN102397720B (en) * | 2011-11-18 | 2013-11-27 | 沈阳隆基电磁科技股份有限公司 | Emulsified liquid magnetization filter element |
| CN116748524A (en) * | 2023-06-19 | 2023-09-15 | 海南大学 | Preparation device and preparation method of high-purity nano zero-valent iron |
| CN116748524B (en) * | 2023-06-19 | 2024-04-26 | 海南大学 | Preparation device and preparation method of high-purity nano zero-valent iron |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120123043A (en) | 2012-11-07 |
| CN102939164B (en) | 2015-10-14 |
| JP2011143346A (en) | 2011-07-28 |
| JP5671755B2 (en) | 2015-02-18 |
| CN102939164A (en) | 2013-02-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2011086793A1 (en) | Screens for electromagnetic separator | |
| US10010891B2 (en) | Magnetic filter | |
| JP6145363B2 (en) | Electromagnetic separator screen | |
| US3912634A (en) | Filter cartridge for a magnetic separator | |
| CN100493726C (en) | Chain ring type magnetic separation machine | |
| CN101862702A (en) | Centrifugal high-gradient magnetic method | |
| RU2474478C1 (en) | Device to settle ferromagnetic particles from suspension | |
| JP6446631B1 (en) | Bar magnet and magnetic foreign matter removing device | |
| CN102580845A (en) | Magnetic medium rod and magnetic separator | |
| CN206104106U (en) | Calomel mercurous chloride magnetic separator de -ironing | |
| US20190126288A1 (en) | Magnetic separation system and devices | |
| JP6283084B2 (en) | Improved material separation and recovery matrix for dry vibratory magnetic filters | |
| JPS607769Y2 (en) | Magnetizable particle separator | |
| JPS634443B2 (en) | ||
| GB1562941A (en) | Magnetic separators | |
| CN218107985U (en) | Coiled magnetic gathering medium and periodic magnetic separator | |
| RU2516608C1 (en) | Electromagnetic separator | |
| JPS634820A (en) | Filtrating apparatus using laminated magnet | |
| CN212092755U (en) | Magnetic separator | |
| CN116809234B (en) | Lunar soil high gradient magnetic separation device | |
| CN216538940U (en) | High flux magnetic frame | |
| EP1127622A2 (en) | Low intensity magnetic separator | |
| JPS5949044B2 (en) | High gradient magnetic separation device | |
| RU18240U1 (en) | MAGNETIC SEPARATOR | |
| JPH02303505A (en) | High gradient magnetic separator of continuously changing flow velocity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 201080061347.7 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10843148 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 20127017548 Country of ref document: KR Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 10843148 Country of ref document: EP Kind code of ref document: A1 |