JP2020065986A - Vibration screening machine - Google Patents

Vibration screening machine Download PDF

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JP2020065986A
JP2020065986A JP2018201415A JP2018201415A JP2020065986A JP 2020065986 A JP2020065986 A JP 2020065986A JP 2018201415 A JP2018201415 A JP 2018201415A JP 2018201415 A JP2018201415 A JP 2018201415A JP 2020065986 A JP2020065986 A JP 2020065986A
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screen
sieve
powder
vibrating
mesh
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JP7157379B2 (en
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巧也 山内
Yoshinari Yamauchi
巧也 山内
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Sumitomo Metal Mining Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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    • Y02E60/10—Energy storage using batteries

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Abstract

To provide a vibration screening machine which can surely perform magnetic separation and also allows for suppression of the total cost of equipment and suppression of the whole equipment size.SOLUTION: A vibration screen machine 10 includes: a sieve mesh which screens powders supplied from above, while being vibrated, and a first discharge port 15 which discharges the powders having passed through the sieve mesh, to the exterior. A magnetized body 14 removing magnetic materials from the powders having passed through the sieve mesh is located at a position where the powders pass from the sieve mesh to the first discharge port 15. By this configuration, the powders having passed through the sieve mesh pass a portion where the magnetized body 14 is located, at a nearly the same ratio of the powders passing through the vibration screening machine 10 per unit space, and therefore, the magnetic materials are removed by the magnetized body 14, while maintaining high dispersibility of the powders. Thus, magnetic separation can be surely performed.SELECTED DRAWING: Figure 1

Description

本発明は、振動篩機に関する。さらに詳しくは、篩網を加振しながら粉体を篩い分ける振動篩機に関する。   The present invention relates to a vibrating screener. More specifically, the present invention relates to a vibration sieving machine that sifts powder while vibrating a screen.

篩網の上に供給された粉体を、篩網を振動させることにより、篩網を通過する粉体と通過しない粉体とを篩い分けるよう構成された振動篩機が広く知られている。特許文献１には、このような振動篩機であって、篩網および受皿の帯電を抑制したものが開示されている。   A vibrating sieving machine is widely known, which is configured so as to separate powder that has passed through the screen and powder that does not pass by vibrating the screen supplied with the powder supplied onto the screen. Patent Document 1 discloses such a vibrating screener in which charging of a screen and a tray is suppressed.

振動篩機は、医薬品などの化学関係の製造工程、鉄粉などの金属関係の製造工程、陶土などの窯業関係の製造工程、小麦粉などの食品関係の製造工程などで用いられている。近年では、リチウムイオン電池の正極活物質などの製造工程でも用いられている。例えば、振動篩機は、正極活物質そのものの篩い分けに用いられたり、正極活物質となる前段階の物質、すなわち水酸化ニッケル、水酸化マンガン、水酸化コバルトまたは水酸化アルミニウム、更にはその酸化物の篩い分けに用いられたりする。   The vibrating screener is used in chemical-related manufacturing processes such as pharmaceuticals, metal-related manufacturing processes such as iron powder, ceramic-related manufacturing processes such as porcelain clay, and food-related manufacturing processes such as wheat flour. In recent years, it has also been used in the manufacturing process of positive electrode active materials for lithium ion batteries. For example, a vibrating screener is used for sieving the positive electrode active material itself, or a material at a previous stage that becomes the positive electrode active material, that is, nickel hydroxide, manganese hydroxide, cobalt hydroxide or aluminum hydroxide, and further oxidation thereof. It is also used for screening products.

特開２０１４−７９７０６号公報JP, 2014-79706, A

上記のリチウムイオン二次電池の正極活物質などでは、金属異物または粗大粒子異物が混入していた場合、リチウムイオン二次電池を構成しているセパレータを金属異物などが突き抜け、電池がショートしたり、このショートにより発火したりする危険性が存在する。そのため、リチウムイオン二次電池全体の製造工程では、混入防止対策として、各工程のクローズ化、陽圧化、金属材料の使用制限などが行われている。
リチウムイオン二次電池の正極活物質などの製造工程では、振動篩機が用いられて粗大粒子異物が取り除かれた後、磁選機により金属異物が取り除かれる。従来、振動篩機と磁選機とは、各々のメーカが製造したものが製造工程の中で並べられて用いられていた。この場合、振動篩機から排出される粉体は、振動篩機の胴回りよりも細い配管を通過して磁選機に入る。そして磁選機では、その細い配管とほぼ同程度の配管中を通過する粉体に対して磁選が行われる。細い配管中では、通過する粉体の単位空間に占める割合が増加するため、磁選が確実に行われなかったり、複数の磁選機を直列に並べて磁選の確実性をあげる必要が生じたりしていた。 In the positive electrode active material of the lithium ion secondary battery described above, when a metal foreign substance or a coarse particle foreign substance is mixed, the metal foreign substance or the like penetrates through the separator forming the lithium ion secondary battery, and the battery is short-circuited. , There is a risk of ignition due to this short circuit. Therefore, in the manufacturing process of the entire lithium-ion secondary battery, as a measure for preventing the mixture, each process is closed, positive pressure is applied, and the use of the metal material is restricted.
In a manufacturing process of a positive electrode active material of a lithium ion secondary battery, a vibrating screener is used to remove coarse particle foreign substances, and then a magnetic separator removes metallic foreign substances. Conventionally, the vibrating screener and the magnetic separator were manufactured by respective manufacturers and arranged and used in the manufacturing process. In this case, the powder discharged from the vibrating screener passes through a pipe thinner than the circumference of the vibrating screener and enters the magnetic separator. Then, in the magnetic separator, the magnetic separation is performed on the powder passing through the pipe having substantially the same size as the thin pipe. In thin pipes, the ratio of the passing powder to the unit space increases, so magnetic separation cannot be performed reliably, or it is necessary to arrange multiple magnetic separators in series to increase the reliability of magnetic separation. .

しかるに、磁選が確実に行われない場合には、電池の不良品率が高止まりするという問題がある。また、複数の磁選機を直列に並べる場合は、全体の設備費が高くなったり、設備全体の大きさが大きくなったりするという問題がある。   However, if the magnetic separation is not performed reliably, there is a problem that the defective product rate of the battery remains high. In addition, when a plurality of magnetic separators are arranged in series, there are problems that the total equipment cost increases and the size of the entire equipment increases.

本発明は上記事情に鑑み、磁選を確実に行うことができるとともに、全体の設備費を抑制し、かつ設備全体の大きさを抑えることが可能な振動篩機を提供することを目的とする。   The present invention has been made in view of the above circumstances, and an object thereof is to provide a vibrating screener that can reliably perform magnetic separation, can suppress the total equipment cost, and can suppress the size of the entire equipment.

第１発明の振動篩機は、上方から供給される粉体を、加振されながら篩い分ける篩網と、該篩網を通り抜けた前記粉体を外部へ排出する第１排出口と、を含んで構成され、前記篩網を通り抜けた前記粉体から磁着物を取り除く着磁体が、前記粉体が前記篩網から前記第１排出口までの間を通過する位置に配置されていることを特徴とする。
第２発明の振動篩機は、第１発明において、前記着磁体が振動していることを特徴とする。
第３発明の振動篩機は、第１発明または第２発明において、前記篩網が、上下２段に設けられており、上側の前記篩網の目開きと、下側の前記篩網の目開きとが同じであることを特徴とする。
第４発明の振動篩機は、第１発明から第３発明のいずれかにおいて、前記篩網を振動させるための超音波振動装置が設けられていることを特徴とする。
第５発明の振動篩機は、第１発明から第４発明のいずれかにおいて、前記篩網の網材が磁性体であることを特徴とする。
第６発明の振動篩機は、第１発明から第５発明のいずれかにおいて、前記着磁体の性能領域の最大長さが、前記篩網の性能領域の最大長さの９０％以上１００％以下であることを特徴とする。 The vibrating screener of the first invention includes a screen screen for screening powder supplied from above while vibrating, and a first outlet for discharging the powder passing through the screen screen to the outside. And a magnetized body that removes a magnetic substance from the powder passing through the sieve mesh is arranged at a position where the powder passes from the sieve mesh to the first discharge port. And
A vibrating screener according to a second aspect of the invention is characterized in that, in the first aspect, the magnetized body vibrates.
The vibrating screener of 3rd invention is a vibrating screener in 1st invention or 2nd invention, Comprising: The said screen is provided in the upper and lower 2 stages, and the opening of the said upper screen and the mesh of the said lower screen It is characterized by the same opening.
A vibrating screener of a fourth invention is characterized in that, in any one of the first invention to the third invention, an ultrasonic vibration device for vibrating the screen is provided.
A vibrating screener of a fifth invention is characterized in that, in any one of the first invention to the fourth invention, the mesh material of the sieve mesh is a magnetic material.
A vibrating screener of a sixth invention is the vibrating screener of any of the first invention to the fifth invention, wherein the maximum length of the performance region of the magnetized body is 90% or more and 100% or less of the maximum length of the performance region of the sieve mesh. Is characterized in that.

第１発明によれば、粉体が篩網から第１排出口までの間を通過する位置に着磁体が配置されていることにより、篩網を通り抜けた粉体が、振動篩機を通過する粉体の単位空間あたりの割合がほぼ同じ状態で、着磁体が配置された部分を通るので、粉体が高い分散性を維持したまま着磁体により磁着物が除去される。これにより磁選が確実に行われる。また、振動篩機とは別に磁選機を設ける必要がないので、全体の設備費を抑制するとともに、設備全体の大きさを抑えることができる。
第２発明によれば、着磁体が振動していることにより、篩い分けされる粉体が弱磁性を有している場合であっても、その粉体が着磁体に付着したままになることを防止でき、これにより磁着物の除去能力が落ちないので、さらに確実に磁着物が除去される。
第３発明によれば、篩網が上下２段に設けられており、上側の篩網の目開きと、下側の篩網の目開きが同じであることにより、粗大粒子異物の保証が容易になる。
第４発明によれば、篩網を振動させるための超音波振動装置が設けられていることにより、粉体が篩網を通過する速度をより速くすることができ、振動篩機の効率が向上する。
第５発明によれば、篩網の網材が磁性体であることにより、振動篩機の稼働中に篩網の一部が離脱する破損があっても、その離脱した部分を着磁体により除去できるので、磁選がより確実に行われる。
第６発明によれば、着磁体の性能領域の最大長さが、篩網の性能領域の最大長さの９０％以上１００％以下であることにより、粉体の分散性が維持でき、より確実に磁着物の除去が行われる。 According to the first aspect of the present invention, the magnetized body is arranged at a position where the powder passes from the screen to the first outlet, so that the powder passing through the screen passes through the vibrating screener. Since the powder passes through the portion where the magnetized body is arranged in a state in which the ratio of the powder per unit space is almost the same, the magnetized material is removed by the magnetized body while maintaining high dispersibility of the powder. This ensures magnetic selection. Moreover, since it is not necessary to provide a magnetic separator separately from the vibrating screener, it is possible to suppress the total equipment cost and the size of the entire equipment.
According to the second invention, since the magnetized body vibrates, even if the powder to be sieved has weak magnetism, the powder remains attached to the magnetized body. Can be prevented, and thereby the ability to remove the magnetic substance does not deteriorate, so that the magnetic substance can be removed more reliably.
According to the third aspect of the invention, the sieve mesh is provided in upper and lower two stages, and the mesh opening of the upper sieve mesh and the mesh sieve of the lower sieve mesh are the same, so that the coarse particle foreign matter can be easily guaranteed. become.
According to the fourth aspect of the invention, since the ultrasonic vibrating device for vibrating the screen is provided, the speed at which the powder passes through the screen can be increased, and the efficiency of the vibrating screener is improved. To do.
According to the fifth aspect of the invention, since the mesh material of the screen is magnetic, even if a part of the screen is broken during the operation of the vibrating screener, the separated part is removed by the magnetized body. As a result, magnetic separation can be performed more reliably.
According to the sixth invention, the maximum length of the performance region of the magnetized body is 90% or more and 100% or less of the maximum length of the performance region of the sieve mesh, so that the dispersibility of the powder can be maintained and more reliable. Then, the magnetic substance is removed.

本発明の実施形態に係る振動篩機の正面図である。It is a front view of the vibrating screen machine which concerns on embodiment of this invention. 図１の振動篩機の篩網の性能領域を示す平面図である。It is a top view which shows the performance area | region of the screen of the vibration sieving machine of FIG. 図１の振動篩機の着磁体の性能領域を示す平面図である。It is a top view which shows the performance area | region of the magnetized body of the vibration sieving machine of FIG.

つぎに、本発明の実施形態を図面に基づき説明する。ただし、以下に示す実施の形態は、本発明の技術思想を具体化するための振動篩機を例示するものであって、本発明は振動篩機を以下のものに特定しない。なお、各図面が示す部材の大きさまたは位置関係等は、説明を明確にするため誇張していることがある。   Next, an embodiment of the present invention will be described based on the drawings. However, the embodiments described below exemplify a vibrating screener for embodying the technical idea of the present invention, and the present invention does not specify the vibrating screener as follows. In addition, the size, the positional relationship, or the like of the members illustrated in each drawing may be exaggerated for clarity of explanation.

図１には本発明の一実施形態に係る振動篩機１０の正面図を示す。上下の中心線から右側は断面図になっている。本実施形態に係る振動篩機１０は、投入口４６から篩容器１１内に投入された粉体を、篩容器１１内部に設けられた篩網（本明細書では上側篩網１２および下側篩網１３）により篩い分け、あらかじめ定められた粒径よりも大きい粒径の粉体を第２排出口１６から排出し、あらかじめ定められた粒径以下の粒径の粉体を第１排出口１５から排出するように作動する。   FIG. 1 shows a front view of a vibrating screener 10 according to an embodiment of the present invention. The right side from the upper and lower center lines is a sectional view. The vibrating sieving machine 10 according to the present embodiment uses the powder introduced into the sieve container 11 through the introduction port 46 into a sieve mesh provided inside the sieve container 11 (in this specification, the upper sieve mesh 12 and the lower sieve mesh). The powder having a particle size larger than a predetermined particle size is discharged from the second discharge port 16 by sieving with a mesh 13), and the powder having a particle size not larger than the predetermined particle size is discharged to the first discharge port 15 Operates to drain from.

本実施形態に係る振動篩機１０は、粉体が投入される篩容器１１と、この篩容器１１の下方で篩容器１１を支持する架台２６と、篩容器１１と架台２６との間に位置している複数のコイルバネ２１と、篩容器１１全体を加振する振動装置２０と、を含んで構成されている。また、篩容器１１には、上方から供給される粉体を、加振されながら篩い分ける篩網と、この篩網を通り抜けた粉体を外部へ排出する第１排出口１５と、が設けられており、篩網を通り抜けた粉体から磁着物を取り除く着磁体１４が、粉体が篩網から第１排出口１５までの間を通過する位置に配置されている。本実施形態に係る振動篩機１０は、架台２６内に設置された振動装置２０により、篩容器１１全体を上下に加振しており、この加振により篩容器１１内の篩網が加振され、粉体の篩い分けが行われる装置である。また、篩容器１１全体が加振されることにより、着磁体１４も加振されている。   The vibrating sieving machine 10 according to the present embodiment is provided with a sieve container 11 into which powder is charged, a stand 26 that supports the sieve container 11 below the sieve container 11, and a position between the sieve container 11 and the stand 26. It includes a plurality of coil springs 21 and a vibration device 20 that vibrates the entire sieve container 11. Further, the sieve container 11 is provided with a sieve net for sieving the powder supplied from above while vibrating and a first outlet 15 for discharging the powder passing through the sieve net to the outside. The magnetized body 14 that removes magnetic substances from the powder that has passed through the screen is disposed at a position where the powder passes between the screen and the first discharge port 15. The vibrating sieving machine 10 according to the present embodiment vibrates the entire sieve container 11 up and down by the vibrating device 20 installed in the pedestal 26, and the vibrating screen inside the sieve container 11 is vibrated by this vibration. And is a device for sieving powder. The magnetized body 14 is also vibrated by vibrating the entire sieve container 11.

粉体が、篩網から第１排出口１５までの間を通過する位置に着磁体１４が配置されていることにより、篩網を通り抜けた粉体が、振動篩機１０を通過する粉体の単位空間あたりの割合がほぼ同じ状態で、着磁体１４が配置された部分を通るので、粉体が高い分散性を維持したまま着磁体１４により磁着物が除去される。これにより磁選が確実に行われる。また、振動篩機１０とは別に磁選機を設ける必要がないので、全体の設備費を抑制するとともに、設備全体の大きさを抑えることができる。   Since the magnetized body 14 is arranged at a position where the powder passes from the sieve mesh to the first discharge port 15, the powder passing through the sieve mesh is separated from the powder passing through the vibrating screen machine 10. Since the magnetic powder passes through the portion where the magnetized body 14 is arranged in a state in which the ratio per unit space is substantially the same, the magnetized material is removed by the magnetized body 14 while maintaining high dispersibility of the powder. This ensures magnetic selection. Further, since it is not necessary to provide a magnetic separator separately from the vibrating screener 10, it is possible to suppress the total equipment cost and the size of the entire equipment.

着磁体１４が振動していることにより、篩い分けされる粉体が弱磁性を有している場合であっても、その粉体が着磁体１４に付着したままになることを防止でき、これにより磁着物の除去能力が落ちないので、さらに確実に磁着物が除去される。   By vibrating the magnetized body 14, even if the powder to be sieved has weak magnetism, it is possible to prevent the powder from remaining attached to the magnetized body 14. As a result, the ability to remove the magnetic substance does not deteriorate, so that the magnetic substance can be removed more reliably.

本実施形態に係る篩容器１１の全体の形状は円筒体である。篩容器１１は、扁平な円筒体である部材を縦に積み重ねて構成されている。篩容器１１を構成する部材としては、上から第１枠体３０、第２枠体３１、第３枠体３２、第４枠体３３である。第１枠体３０と第２枠体３１との間には、上側篩網１２が配置されている。すなわち上側篩網１２は第１枠体３０と第２枠体３１に挟まれている。第２枠体３１と第３枠体３２との間には下側篩網１３が配置されている。すなわち下側篩網１３は、第２枠体３１と第３枠体３２との間に挟まれている。第３枠体３２と第４枠体との間には着磁体１４が配置されている。すなわち着磁体１４が備えられた部材が第３枠体３２と第４枠体３３との間に挟まれている。   The overall shape of the sieve container 11 according to this embodiment is a cylindrical body. The sieve container 11 is configured by vertically stacking flat cylindrical members. The members constituting the sieve container 11 are the first frame body 30, the second frame body 31, the third frame body 32, and the fourth frame body 33 from the top. The upper sieve screen 12 is arranged between the first frame body 30 and the second frame body 31. That is, the upper screen 12 is sandwiched between the first frame 30 and the second frame 31. The lower sieve screen 13 is arranged between the second frame body 31 and the third frame body 32. That is, the lower sieve screen 13 is sandwiched between the second frame body 31 and the third frame body 32. The magnetized body 14 is arranged between the third frame body 32 and the fourth frame body. That is, the member provided with the magnetized body 14 is sandwiched between the third frame body 32 and the fourth frame body 33.

第１枠体３０は、投入される粉体が飛散しないように蓋を有している。この蓋には粉体の投入口１１ａが設けられている。この粉体の投入口１１ａは、例えば、図示しないホッパーなどに接続され、このホッパーから粉体が振動篩機１０に投入される。また第１枠体３０には、第２排出口１６が設けられている。この第２排出口１６から、上側篩網１２を通過しなかった粉体が排出される。   The first frame body 30 has a lid so that the powder to be charged does not scatter. The lid is provided with a powder inlet 11a. The powder supply port 11a is connected to, for example, a hopper (not shown), and the powder is supplied to the vibrating screener 10 from the hopper. Further, the first frame body 30 is provided with the second discharge port 16. From the second discharge port 16, the powder that has not passed through the upper screen 12 is discharged.

第２枠体３１には、超音波振動装置１８が設けられている。この超音波振動装置１８は、上側篩網１２の網叩き１９を動作させ、上側篩網１２をあらかじめ定められた振動数、および振幅で加振する。すなわち上側篩網１２には、篩容器１１全体が加振されることによる振動と、超音波振動装置１８からの振動と、という２種類の異なる振動が加えられる。   The second frame 31 is provided with the ultrasonic vibration device 18. The ultrasonic vibrating device 18 operates the mesh tapping 19 of the upper screen mesh 12 to vibrate the upper screen mesh 12 at a predetermined frequency and amplitude. That is, two types of different vibrations are applied to the upper sieve screen 12, namely, vibration caused by vibrating the entire sieve container 11 and vibration from the ultrasonic vibration device 18.

篩網を振動させるための超音波振動装置１８が設けられていることにより、粉体が篩網を通過する速度をより速くすることができ、振動篩機１０の効率が向上する。   Since the ultrasonic vibration device 18 for vibrating the screen is provided, the speed at which the powder passes through the screen can be increased, and the efficiency of the vibrating screener 10 is improved.

本実施形態では、篩網として上側篩網１２と下側篩網１３との２つが設けられているが、これに限定されない。例えば篩網を１つとすることも可能である。また、本実施形態では、２つ設けられた篩網において、上側篩網１２の目開きと下側篩網１３の目開きは同じ大きさとしている。ただしこれに限定されるものではなく、上側篩網１２の目開きを、下側篩網１３の目開きよりも大きくすることも可能である。また本実施形態では、上側篩網１２および下側篩網１３の網材は磁性体である。具体的に網材はダーマロイが採用されている。   In this embodiment, two sieves, the upper sieve mesh 12 and the lower sieve mesh 13, are provided as the sieve mesh, but the invention is not limited to this. For example, it is possible to use one sieve mesh. In addition, in the present embodiment, in the two screens provided, the upper screen 12 and the lower screen 13 have the same size. However, the mesh size of the upper screen mesh 12 is not limited to this, and it is also possible to make the mesh size of the upper screen mesh 12 larger than that of the lower screen mesh 13. Further, in the present embodiment, the net material of the upper screen 12 and the lower screen 13 is a magnetic material. Specifically, Dermalloy is used as the net material.

篩網が上下２段に設けられており、上側の篩網（上側篩網１２）の目開きと、下側の篩網（下側篩網１３）の目開きが同じであることにより、粗大粒子異物の保証が容易になる。   Since the sieve screens are provided in upper and lower two stages and the openings of the upper sieve screen (upper sieve screen 12) and the lower sieve screen (lower sieve screen 13) are the same, it is coarse. Guarantee of particle foreign matter becomes easy.

篩網の網材が磁性体であることにより、振動篩機１０の稼働中に篩網の一部が離脱する破損があっても、その離脱した部分を着磁体１４により除去できるので、磁選がより確実に行われる。   Since the mesh material of the screen is a magnetic material, even if a part of the screen is damaged during operation of the vibrating screener 10, the separated part can be removed by the magnetized body 14, so that the magnetic separation can be performed. More surely done.

図２には、図１のII−II矢視での断面図を示す。この断面図は、下側篩網１３および第２枠体３１のみを示した平面図である。下側篩網１３の目開きは、篩い分けされる粉体の粒径により決定される。例えば目開きは２００メッシュとすることができる。また、本明細書では、図２のＲ１で示される長さを下側篩網１３の性能領域の最大長さとする。「性能領域」とは、下側篩網１３が篩い分けの性能を発揮できる水平面内の領域を意味し、具体的には下側篩網１３において、第２枠体３１の円筒側面の内側の領域を意味する。この領域において、下側篩網１３は粉体の篩い分けが可能となるからである。また、「最大長さ」は、この性能領域が円形である場合は、直径の長さが該当し、角形である場合は、角形の辺における任意の２点を結ぶ線分のうち最も長い線分の長さが該当する。   FIG. 2 shows a sectional view taken along the line II-II of FIG. This sectional view is a plan view showing only the lower sieve screen 13 and the second frame body 31. The mesh size of the lower screen 13 is determined by the particle size of the powder to be sieved. For example, the mesh size can be 200 mesh. In this specification, the length indicated by R1 in FIG. 2 is the maximum length of the performance region of the lower sieve screen 13. The “performance area” means an area in a horizontal plane where the lower screen mesh 13 can exhibit the performance of sieving, and specifically, in the lower screen network 13, inside the cylindrical side surface of the second frame 31. Means an area. This is because in this region, the lower screen 13 can screen the powder. In addition, the “maximum length” corresponds to the length of the diameter when the performance region is circular, and when the performance region is rectangular, the longest line among the line segments connecting any two points on the sides of the polygon. The length of the minute applies.

図３には、図１のIII−III矢視での断面図を示す。この断面図は、着磁体１４および第３枠体３２のみを示した平面図である。本実施形態では着磁体１４は、円柱状の永久磁石である。本実施形態では複数の着磁体１４が、図１に示すように、上下２段に千鳥状に配置されている。このような配置は、図３に示すように、上から見た場合は水平に並んでいるように表される。この着磁体１４の形状または構成は、本実施形態で表された形状または構成に限定されない。例えば着磁体１４の形状は、四角柱などの多角柱形状とすることもできる。また、円柱状の着磁体１４を上下に格子状に並べることも可能である。   FIG. 3 shows a sectional view taken along the line III-III in FIG. This sectional view is a plan view showing only the magnetized body 14 and the third frame 32. In this embodiment, the magnetized body 14 is a columnar permanent magnet. In the present embodiment, the plurality of magnetized bodies 14 are arranged in a staggered manner in upper and lower two stages as shown in FIG. Such an arrangement is shown to be horizontal when viewed from above, as shown in FIG. The shape or configuration of the magnetized body 14 is not limited to the shape or configuration shown in this embodiment. For example, the magnetized body 14 may be in the shape of a polygonal prism such as a square prism. Further, it is also possible to arrange the columnar magnetized bodies 14 in a grid pattern vertically.

本明細書では、図３のＲ２で示される長さを着磁体１４の性能領域の最大長さとする。「性能領域」は、着磁体１４が磁着の性能を発揮できる水平面内の領域を意味し、具体的には、着磁体１４が配置されている部分において、第３枠体３２の円筒側面の内側の領域を意味する。この領域において、着磁体１４は磁着物の除去が可能となるからである。また、「最大長さ」は、性能領域が円形である場合は、直径の長さが該当し、角形である場合は、角形の辺における任意の２点を結ぶ線分のうち最も長い線分の長さが該当する。   In this specification, the length indicated by R2 in FIG. 3 is the maximum length of the performance region of the magnetized body 14. The “performance region” means a region in the horizontal plane where the magnetized body 14 can exhibit the performance of magnetizing. Specifically, in the portion where the magnetized body 14 is arranged, the cylindrical side surface of the third frame 32 is It means the inner area. This is because the magnetized substance can be removed from the magnetized body 14 in this region. Further, the “maximum length” corresponds to the length of the diameter when the performance region is circular, and when the performance region is rectangular, it is the longest line segment connecting any two points on the sides of the polygon. Corresponds to the length of.

本実施形態では、着磁体１４の性能領域の最大長さが、下側篩網１３の性能領域の最大長さと同じとなっている。なお、この両性能領域の長さについては、同じである必要はなく、例えば、着磁体１４の性能領域の最大長さが、下側篩網１３の性能領域の最大長さの９０％以上１００％以下であれば問題ない。また、本実施形態では２つある篩網のうち下側に位置するものを対象にしたがこれに限定されず、上側に位置するものを対象にすることもできる。   In the present embodiment, the maximum length of the performance region of the magnetized body 14 is the same as the maximum length of the performance region of the lower sieve screen 13. The lengths of the two performance regions do not have to be the same, and for example, the maximum length of the performance region of the magnetized body 14 is 90% or more of the maximum length of the performance region of the lower sieve mesh 13 and 100 or more. There is no problem if it is less than or equal to%. Further, in the present embodiment, the one located on the lower side of the two screen meshes is targeted, but the present invention is not limited to this, and the one located on the upper side can be targeted.

着磁体１４の性能領域の最大長さが、篩網の性能領域の最大長さの９０％以上１００％以下であることにより、粉体の分散性が維持でき、より確実に磁着物の除去が行われる。   When the maximum length of the performance region of the magnetized body 14 is 90% or more and 100% or less of the maximum length of the performance region of the screen, the dispersibility of the powder can be maintained and the magnetic substance can be removed more reliably. Done.

図１に示すように、第４枠体３３には篩網、すなわち本実施形態では上側篩網１２および下側篩網１３の両方を通り抜けた粉体を外部へ排出する第１排出口１５が設けられている。また、第４枠体３３には、下側篩網１３を通り抜けた粉体を集約するための粉体受１７が設けられている。この粉体受１７は、図１に示すように、篩容器１１の軸心に対して所定の角度を持って配置されている。このため下側篩網１３を通り抜けた粉体は、図１において右側から左側へ、重力により移動し、第１排出口１５へ導かれ、この第１排出口１５から排出される。なお、第１排出口１５の軸心と垂直な面は、大きくても篩容器１１の内径の５０％である。内径がこれよりも大きいと、粉体の移送のための配管径が大きくなりすぎ、設備が大型化しすぎるからである。すなわちこの第１排出口１５を通過した先が本実施形態の振動篩機１０の外部となる。   As shown in FIG. 1, the fourth frame 33 has a sieve screen, that is, in the present embodiment, a first discharge port 15 for discharging powder that has passed through both the upper screen net 12 and the lower screen net 13 to the outside. It is provided. Further, the fourth frame 33 is provided with a powder receiver 17 for collecting the powder that has passed through the lower screen 13. As shown in FIG. 1, the powder receiver 17 is arranged at a predetermined angle with respect to the axis of the sieve container 11. Therefore, the powder passing through the lower screen 13 moves from the right side to the left side in FIG. 1 by gravity, is guided to the first discharge port 15, and is discharged from the first discharge port 15. The surface of the first outlet 15 perpendicular to the axis is 50% of the inner diameter of the sieve container 11 at most. This is because if the inner diameter is larger than this, the diameter of the pipe for transferring the powder becomes too large, and the equipment becomes too large. That is, the part that has passed through the first discharge port 15 is the outside of the vibrating screener 10 of the present embodiment.

篩容器１１を構成する第４枠体３３は、複数のコイルバネ２１を介して、架台２６に支持されている。コイルバネ２１の数またはばね定数は、篩容器１１に付加される振動の振動数または振幅、さらには篩容器１１内に供給される粉体の重量などにより、あらかじめ定められている。   The fourth frame 33 that constitutes the sieve container 11 is supported by the pedestal 26 via the plurality of coil springs 21. The number or the spring constant of the coil springs 21 is predetermined according to the frequency or amplitude of the vibration applied to the sieve container 11, the weight of the powder supplied into the sieve container 11, and the like.

架台２６は、振動する篩容器１１を支持することができる構成を有している。また、架台２６は、篩容器１１の振動が床面に伝播するのを防止するための、複数の防振ゴム２７により支持されている。   The gantry 26 has a configuration capable of supporting the vibrating sieve container 11. Further, the pedestal 26 is supported by a plurality of anti-vibration rubbers 27 for preventing the vibration of the sieve container 11 from propagating to the floor surface.

架台２６内には、篩容器１１全体を振動させるための振動装置２０が設けられている。この振動装置２０は、加振装置２４とアンバランスウェイト２５とを含んで構成されている。加振装置２４は、架台２６内に同じように収容されているモータ２８により、Ｖベルト２３とプーリ２２を介してアンバランスウェイト２５を回転させ、この回転により篩容器１１全体を振動させる。   Inside the gantry 26, a vibrating device 20 for vibrating the entire sieve container 11 is provided. The vibration device 20 includes a vibration device 24 and an unbalanced weight 25. The vibrating device 24 rotates the unbalanced weight 25 via the V-belt 23 and the pulley 22 by the motor 28 that is also housed in the frame 26, and vibrates the entire sieve container 11 by this rotation.

本実施形態に係る振動篩機１０は、複数の枠体を積み重ねた篩容器１１を有する構成であったがこれに限定されない。例えば一つの枠体中に、一つのまたは複数の篩網および着磁体１４のカセットを挿入し、縦にそれらが並ぶ形態としても問題ない。   The vibrating screener 10 according to the present embodiment has a configuration including the screen container 11 in which a plurality of frame bodies are stacked, but the present invention is not limited to this. For example, one or a plurality of sieve nets and a cassette of the magnetized body 14 may be inserted into one frame, and they may be arranged vertically.

また、本実施形態に係る振動篩機１０では、第４枠体３３に、下側篩網１３を通り抜けた粉体が一方の側に流れるような粉体受１７が設けられたが、粉体受１７の形態はこれに限定されない。例えば、両側に流れるような形態としたり、第４枠体３３の真下に抜けるような形態としたりすることも可能である。   Further, in the vibrating screener 10 according to the present embodiment, the fourth frame 33 is provided with the powder receiver 17 that allows the powder passing through the lower screen 13 to flow to one side. The form of the bridge 17 is not limited to this. For example, it is possible to adopt a configuration in which it flows on both sides, or a configuration in which it is pulled out directly below the fourth frame 33.

加えて、本実施形態に係る振動篩機１０では、篩網と着磁体１４とを有する篩容器１１全体が振動装置２０により加振される構成であったがこれに限定されない。例えば、振動装置２０による加振される篩容器１１には篩網を設け、加振されない部分に着磁体１４を設けることも可能である。   In addition, in the vibrating sieving machine 10 according to the present embodiment, the entire sieving container 11 having the sieving screen and the magnetized body 14 is vibrated by the vibrating device 20, but the present invention is not limited to this. For example, it is possible to provide a sieve mesh on the sieve container 11 which is vibrated by the vibrating device 20 and to provide the magnetized body 14 on a portion which is not vibrated.

１０ 振動篩機
１２ 上側篩網（篩網）
１３ 下側篩網（篩網）
１４ 着磁体
１５ 第１排出口
１８ 超音波振動装置 10 Vibrating screen 12 Upper screen (screen)
13 Lower sieve screen (sieve screen)
14 magnetized body 15 first discharge port 18 ultrasonic vibration device

Claims (6)

上方から供給される粉体を、加振されながら篩い分ける篩網と、
該篩網を通り抜けた前記粉体を外部へ排出する第１排出口と、を含んで構成され、
前記篩網を通り抜けた前記粉体から磁着物を取り除く着磁体が、
前記粉体が前記篩網から前記第１排出口までの間を通過する位置に配置されている、
ことを特徴とする振動篩機。 A sieve screen that sifts the powder supplied from above while vibrating it,
A first outlet for discharging the powder that has passed through the screen to the outside,
A magnetized body that removes a magnetic substance from the powder that has passed through the sieve mesh,
The powder is arranged at a position passing from the sieve mesh to the first outlet.
A vibrating screener characterized by the following. 前記着磁体が振動している、
ことを特徴とする請求項１に記載の振動篩機。 The magnetized body is vibrating,
The vibrating screener according to claim 1, wherein 前記篩網が、上下２段に設けられており、
上側の前記篩網の目開きと、下側の前記篩網の目開きとが同じである、
ことを特徴とする請求項１または２に記載の振動篩機。 The sieve screen is provided in two upper and lower stages,
The upper mesh screen opening is the same as the lower mesh screen opening,
The vibrating screener according to claim 1 or 2, characterized in that. 前記篩網を振動させるための超音波振動装置が設けられている、
ことを特徴とする請求項１から請求項３のいずれかに記載の振動篩機。 An ultrasonic vibration device for vibrating the screen is provided,
The vibrating screener according to any one of claims 1 to 3, which is characterized in that. 前記篩網の網材が磁性体である、
ことを特徴とする請求項１から請求項４のいずれかに記載の振動篩機。 The mesh material of the sieve mesh is a magnetic material,
The vibrating screener according to any one of claims 1 to 4, which is characterized in that. 前記着磁体の性能領域の最大長さが、前記篩網の性能領域の最大長さの９０％以上１００％以下である、
ことを特徴とする請求項１から請求項５のいずれかに記載の振動篩機。 The maximum length of the performance region of the magnetized body is 90% or more and 100% or less of the maximum length of the performance region of the sieve mesh,
The vibrating screener according to any one of claims 1 to 5, characterized in that:
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CN112774972A (en) * 2020-12-29 2021-05-11 金锋馥（滁州）输送机械有限公司 Intelligent sorting machine convenient to move
WO2023120349A1 (en) * 2021-12-22 2023-06-29 東亞合成株式会社 Production method and production device for resin powder or inorganic powder
CN114798171A (en) * 2022-04-29 2022-07-29 江苏脒诺甫纳米材料有限公司 High-reflection powder material for solar photovoltaic glass assembly
CN114798171B (en) * 2022-04-29 2024-05-24 唐山金信太阳能玻璃有限公司 High-reflection powder material for solar photovoltaic glass assembly
CN116833096A (en) * 2023-08-31 2023-10-03 山东省住房和城乡建设发展研究院 Automatic sand and stone raw material screening device for constructional engineering

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