JPH01224082A - Particle classifying device - Google Patents
Particle classifying deviceInfo
- Publication number
- JPH01224082A JPH01224082A JP5034588A JP5034588A JPH01224082A JP H01224082 A JPH01224082 A JP H01224082A JP 5034588 A JP5034588 A JP 5034588A JP 5034588 A JP5034588 A JP 5034588A JP H01224082 A JPH01224082 A JP H01224082A
- Authority
- JP
- Japan
- Prior art keywords
- discharge pipe
- powder
- flow
- powder discharge
- fine powder
- 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
Links
- 239000002245 particle Substances 0.000 title claims abstract description 51
- 239000000843 powder Substances 0.000 claims abstract description 124
- 230000000694 effects Effects 0.000 description 13
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- OWNRRUFOJXFKCU-UHFFFAOYSA-N Bromadiolone Chemical compound C=1C=C(C=2C=CC(Br)=CC=2)C=CC=1C(O)CC(C=1C(OC2=CC=CC=C2C=1O)=O)C1=CC=CC=C1 OWNRRUFOJXFKCU-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は粒子の分級装置に係り、とくに乾式による気流
に随伴されている粒子の分級装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a particle classification device, and more particularly to a particle classification device that is entrained in a dry air flow.
（従来の技術）
ミクロン級粒子ならびにサブミクロン級粒子製造への要
求に対応して、粉砕機による微粉砕とともに微粉の粉砕
品を分級することによって、上記の微粒子を得ることが
行われ、とくに分級の精密化が強く要請されている。(Prior Art) In response to the demand for the production of micron-level particles and submicron-level particles, the above-mentioned fine particles are obtained by pulverizing the pulverized product using a pulverizer and classifying the pulverized product. There is a strong demand for precision.
従来、この種の粒子の分級装置としては、分級のための
操作力に対応して、種々のものが提出されており、例え
ば、慣性力を操作力とする分級方法をはじめコアンダ効
果を利用したものなどが提案されている。Conventionally, a variety of devices have been proposed for classifying particles of this type, depending on the operating force required for classification. Things are being suggested.
コアンダ効果とは、流体が高速で壁面に、そって渣れる
ときその円柱壁などの曲面に付着して流動する現象であ
る（例えば、「機械工学便覧」改訂第６版（昭和５４゜
７．２０）。The Coanda effect is a phenomenon in which when a fluid flows along a wall surface at high speed, it adheres to a curved surface such as a cylindrical wall and flows. 20).
Ｐ８−１５）。P8-15).
従来の慣性力及びコアンダ効果を利用する粒子の分級装
置としては、エルボ−ジェット分級機などが試みられて
いたく例えば、化学工学協会「粉粒体工学」、（昭和６
０．１１゜１、）、槙書店、Ｐ１５８）。As conventional particle classification devices that utilize inertial force and the Coanda effect, elbow-jet classifiers and the like have been tried.
0.11゜1,), Maki Shoten, P158).
エルボ−ジェット分級機は二次元の非回転分級体よりな
り、機械的方法が用いられることなく、気流をコアンダ
効果を利用して方向変換し、その際空気中に含まれてい
る粒子の慣性力を操作力として分級を行うものであり、
粒子を運び去るために空気が吹込まれ、このさい細粉は
気流の流線上に浮んで運動し、粗粉には慣性力によって
直進的流下するため、微粉は細粉と粗粉とに分級するこ
とができる。Elbow-jet classifiers consist of a two-dimensional non-rotating classifier that uses the Coanda effect to change the direction of airflow without using any mechanical methods. It performs classification using the operating force,
Air is blown in to carry away the particles, and the fine powder floats and moves on the streamlines of the airflow, and the coarse powder flows straight down due to inertia, so the fine powder is classified into fine powder and coarse powder. be able to.
また、コアンダ効果を充分に生成させるためには、粒子
供給口の先端開口の幅寸法（厚さを代表する）と気流の
速度、空気の粘性とによフて定まるＲｅ数が、所定のＲ
ｅ数を超えて気流を吹出すことが必要である。In addition, in order to sufficiently generate the Coanda effect, the Re number, which is determined by the width dimension (representative of the thickness) of the tip opening of the particle supply port, the speed of the air flow, and the viscosity of the air, must be set at a predetermined R.
It is necessary to blow out airflow exceeding the number e.
さらにまた、コアンダ効果による分級効果を向上させる
ため、空気流と粒子との混合流の通過する部分の壁面に
粒子の混入しない流体の境界層を形成し、流体の流れを
整流するようにした装置なとも提案されている（例えば
、特開昭６１−５７２７９号公報）。Furthermore, in order to improve the classification effect due to the Coanda effect, a device that rectifies the fluid flow by forming a boundary layer of fluid that does not contain particles on the wall surface of the part through which the mixed flow of air and particles passes. It has also been proposed (for example, Japanese Unexamined Patent Publication No. 61-57279).
（発明が解決しようとする課題〕
しかしながら、上記従来の粒子の分級装置、とくに、コ
アンダ効果を利用する粒子の分級装置では、二次元の非
軸対称分級体をもちいているため、分級装置の処理能力
を増大させるにしたがい、分級体の横幅寸法を拡大しな
ければならなかった。このさい、気流が高速で分級体の
壁面に沿って漬れるさい、気流は横幅方向に拡大されて
、横幅方向における気流が乱れて、気流の膜が破裂され
やすく安定したコアンダ効果を阻害してしまうという欠
点があった。さらに、分級体の表面に沿った壁面流から
細粉を含んだ細粉流および中間粉を含んだ中間粉流へと
それぞれ確実に案内する手段を備えていないため、粒子
の分級精度をはじめとする分級性能を低下させてしまう
という問題があった。(Problems to be Solved by the Invention) However, since the above-mentioned conventional particle classification devices, especially particle classification devices that utilize the Coanda effect, use a two-dimensional non-axisymmetric classification body, the processing of the classification device As the capacity increased, the width of the classifier had to be increased.At this time, when the air flow was immersed along the wall of the classifier at high speed, the airflow was expanded in the width direction; This has the disadvantage that the airflow is turbulent and the airflow film is likely to rupture, impeding the stable Coanda effect.Furthermore, the wall flow along the surface of the classifier causes a fine powder flow containing fine powder and an intermediate flow. Since there is no means for reliably guiding each particle to the intermediate powder stream containing powder, there is a problem in that the classification performance including the particle classification accuracy is degraded.
また、空気流と粒子との混合流の通過する部分の壁面に
粒子の混入しない流体の境界層を形成するためにシース
エア用スリットを設けることは分級機の構造を複雑とな
し、運転調整を簡易にすることができないという問題が
あった。In addition, providing a sheath air slit to form a boundary layer of fluid that does not contain particles on the wall surface of the part where the mixed flow of air and particles passes through makes the structure of the classifier complicated and makes it easier to adjust the operation. The problem was that it could not be done.
本発明はこの様な従来の問題を解決するものであり、三
次元の軸対称分級体をもちいて、分級体の表面には安定
した壁面流を形成させ、壁面流から中間粉を含んだ中間
粉流へと確実に案内する中間粉排出管を備えるとともに
、前記過程において、ざらに細粉を含んだ細粉流へと確
実に案内する細粉排出管を備えることにより、粒子を細
粒、中間粉および粗粉とに分離できて、粒子の分級装置
の構造を簡易にすることができ、また、粒子の分級性能
を向上させることができるとともに運転調整を簡易にす
ることができる優れた粒子の分級装置を提供することを
目的とするものである。The present invention solves such conventional problems by using a three-dimensional axisymmetric classifier to form a stable wall flow on the surface of the classifier, and to remove intermediate powder containing intermediate powder from the wall flow. By providing an intermediate powder discharge pipe that reliably guides the particles to the powder stream and, in the process, providing a fine powder discharge pipe that reliably guides the particles to the fine powder stream containing fine powder, the particles are finely divided. Excellent particles that can be separated into intermediate powder and coarse powder, simplifying the structure of the particle classification device, improving particle classification performance, and simplifying operational adjustments. The purpose of this invention is to provide a classification device for
本発明は上記目的を達成するために、粒子を含んだ気流
を分級体の表面に沿って流して細粉と中間粉と粗粉とに
分離する粒子の分級装置において、分級体の軸方向の表
面に沿って設けた粒子供給口と、分級体の下半部に臨ん
だ開口を有する中間粉排出管と、分級体の下半部に中間
粉排出管に臨んだ開口を有する細粉排出管と、分級体お
よび中間粉排出管の表面から離れた位置に開口を有する
粗粉排出管とからなるようにしたものであり、また、分
級体の軸方向の頂部に調整具を備え、または中間粉排出
管を軸方向に移動する調整具を備え、分級体の下半部と
中間粉排出管の開口との間隙を調節しつるようにしたも
のである。In order to achieve the above object, the present invention provides a particle classifying device that separates fine powder, intermediate powder, and coarse powder by flowing an air flow containing particles along the surface of a classifying body. A particle supply port provided along the surface, an intermediate powder discharge pipe having an opening facing the lower half of the classifier, and a fine powder discharge pipe having an opening facing the intermediate powder discharge pipe in the lower half of the classifier. and a coarse powder discharge pipe having an opening at a position away from the surface of the classification body and the intermediate powder discharge pipe. It is equipped with an adjustment tool that moves the powder discharge pipe in the axial direction, and is adapted to adjust the gap between the lower half of the classifier and the opening of the intermediate powder discharge pipe.
本発明は上記のような構成により次のような作用を有す
る。すなわち、分級体の表面には安定した壁面流が形成
され、気流は中間粉排出管の開口により壁面流から中間
粉を含んだ中間粉流と確実に案内されるとともに、前記
過程において、分級体の下半部の細粉排出管の開口によ
り壁面流から細粉を含んだ細粉流へと確実に案内されて
、粒子を細粉、中間粉および粗粉とに分離できるので、
粒子の分級装置を簡易にすることができ、また、粒子の
分級性能を著しく向上させることができる。The present invention has the following effects due to the above configuration. In other words, a stable wall flow is formed on the surface of the classifier, and the airflow is reliably guided from the wall flow to the intermediate powder flow containing intermediate powder by the opening of the intermediate powder discharge pipe. The opening of the fine powder discharge pipe in the lower half of the machine reliably guides the flow from the wall surface flow to the fine powder flow containing fine powder, allowing the particles to be separated into fine powder, intermediate powder, and coarse powder.
The particle classification device can be simplified, and the particle classification performance can be significantly improved.
また、分級袋はの分級条件に対応できるように、分級体
の下半部と中間粉排出管の開口との間隙を調整すること
によって、安定した壁面流の形成と細粉を含んだ細粉流
および中間粉を含んだ中間粉流へとそれぞれ確実に案内
されるので、粉子の分級性能の運転調整を簡易に行うこ
とができる。In addition, in order to accommodate the classification conditions of the classification bag, by adjusting the gap between the lower half of the classification body and the opening of the intermediate powder discharge pipe, a stable wall flow can be formed and fine powder containing fine powder can be formed. Since the dust flow and the intermediate powder flow containing the intermediate powder are reliably guided, the operation adjustment of the powder classification performance can be easily performed.
以下、本発明の実施例を図面について詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図において、１０は分級装置をしめし、１２は分級
体、１４は粒子供給口、１６は中間粉排出管、３０は細
粉排出管および２４は粗粉排出管をそれぞれしめす。In FIG. 1, 10 indicates a classifier, 12 a classifier, 14 a particle supply port, 16 an intermediate powder discharge pipe, 30 a fine powder discharge pipe, and 24 a coarse powder discharge pipe.
分級体１２は三次元軸対称体を形成し、下半部１２ａは
球の一部、上手部１２ｂは円錐の一部とによって一体構
造とされ、分級体１２の下半部１２ｂには後述の中間粉
排出管１６に臨んだ開口２９を有する細粉排出管３０が
形成されている。The classification body 12 forms a three-dimensional axially symmetric body, and has an integral structure with a lower half 12a of a part of a sphere and an upper part 12b of a part of a cone. A fine powder discharge pipe 30 having an opening 29 facing the intermediate powder discharge pipe 16 is formed.
分級体１２の軸方向の頂部、すなわち、細粉排出管３０
の軸方向の頂部は調整具４８と接続されており、調整具
４８は、例えば、圧力シリンダなどをもちい、細粉排出
管３０の頂部端板４６に接合されている。調整具４８を
上下動させると、細粉排出管３０の外周面は導管２８゜
４０に設けられた案内具５０．５２の内周面を摺動する
ことにより、軸方向に移動されるので、中間粉排出管１
６との間隙２ｏが調整される。また、細粉排出管３０の
頂部端板４６付近にはスリット３２が設けられ、細粉排
出管３０内部を流れる細粉流が導管４ｏに設けられた管
４２に導出される。The top of the classification body 12 in the axial direction, that is, the fine powder discharge pipe 30
The axial top of the fine powder discharge tube 30 is connected to an adjustment tool 48, which is connected to the top end plate 46 of the fine powder discharge pipe 30, for example, by using a pressure cylinder or the like. When the adjustment tool 48 is moved up and down, the outer peripheral surface of the fine powder discharge pipe 30 is moved in the axial direction by sliding on the inner peripheral surface of the guide tool 50,52 provided on the conduit 28. Intermediate powder discharge pipe 1
6 is adjusted. Further, a slit 32 is provided near the top end plate 46 of the fine powder discharge pipe 30, and the fine powder flow flowing inside the fine powder discharge pipe 30 is led out to a pipe 42 provided in the conduit 4o.
２８は導管をしめし、導管２８の上部付近に設けられた
管１３から粒子を含んだ気流が導かれ、導管２８の下部
先端には、分級体１２との間隙を狭くされている粒子供
給口１４が分級体１２の軸方向の表面に沿って環状に形
成されている。Reference numeral 28 denotes a conduit, into which an airflow containing particles is guided from the pipe 13 provided near the upper part of the conduit 28, and at the lower end of the conduit 28 there is a particle supply port 14 whose gap with the classifier 12 is narrowed. is formed in an annular shape along the axial surface of the classification body 12.
中間粉排出管１６の上部先端には開口１８を有し、分級
体１２の軸方向に、すなわち、細粉排出管３０の軸方向
に一致するように設けられ、開口１８は分級体１２の下
半部１２ａに間隙２０をもって臨むように形成されてい
る。開口１８の形状は気流の流入にさいして気流を乱さ
ないような縁部とすることが有利である。The intermediate powder discharge pipe 16 has an opening 18 at its upper end, which is provided so as to coincide with the axial direction of the classification body 12, that is, the axial direction of the fine powder discharge pipe 30. It is formed so as to face the half portion 12a with a gap 20 therebetween. Advantageously, the shape of the opening 18 has edges that do not disturb the airflow as it enters.
中間粉排出管１６には調整具３４が一体となって取付け
られており、調整具３４は、例えば、外周にねじ部３４
ｂを、下部に歯車３４ａなどを有し、さらにねじ部３４
ｂはケーシング２６の中心部に設けられたねじ部２３に
接合されている。図示を省略した歯車などの駆動により
歯車３４ａが回転されると調整具３４が回転されるとと
もに中間粉排出管１６は軸方向に移動されるので分級体
１２との間隙２０が調整される。また中間粉排出管１６
の下端間口３６は導管３８内に気密に摺動されており、
導管３８内に、中間粉流が案内される。An adjustment tool 34 is integrally attached to the intermediate powder discharge pipe 16, and the adjustment tool 34 has a threaded portion 34 on the outer periphery, for example.
b, has a gear 34a etc. at the lower part, and further has a threaded part 34.
b is joined to a threaded portion 23 provided at the center of the casing 26. When the gear 34a is rotated by a drive such as a gear (not shown), the adjustment tool 34 is rotated and the intermediate powder discharge pipe 16 is moved in the axial direction, so that the gap 20 with the classifier 12 is adjusted. Also, intermediate powder discharge pipe 16
The lower end opening 36 is slid airtight into the conduit 38;
In the conduit 38 an intermediate powder stream is guided.
粗粉排出管２４は分級体１２および中間粉排出管１６の
表面から離れた位置において、前記の軸線に対して直角
方向となるように配置されている。粗粉排出管２４の開
口２２は分級装置１０のケーシング２６の側壁の一部に
設けられている。The coarse powder discharge pipe 24 is arranged at a position away from the surfaces of the classifier 12 and the intermediate powder discharge pipe 16 so as to be perpendicular to the axis. The opening 22 of the coarse powder discharge pipe 24 is provided in a part of the side wall of the casing 26 of the classifier 10.
次に上記実施例の動作について説明する。上記実施例に
おいて、管１３から粒子を含んだ気流は粒子を充分に分
散して導管２８に案内されて、粒子供給口１４から導入
され、噴流となって噴出され、狭い環状域を通過した流
れは引続き分級体１２の下半部１２ｂの表面に沿って付
着して流れる壁面流が形成され、このさい、中間粉流は
中間粉を浮遊、随伴させて間隙２０から開口１８へと集
中されるように流れて中間粉排出管１６に至り、中間粉
が回収される。上記過程において、細粉は中間粉流の内
側において分級体１２の下半部１２ｂの表面に粘性流と
なって付着するように流れる細粉流に浮遊、随伴されて
、間隙２０から開口２９へと集中されるように湾曲され
て細粉排出管３０に至り、細粉が回収される。また、粗
粉は前記の環状域を通過して気流速度に対応した粗粉速
度にもとづく慣性力の作用により直進を続行し、漸次、
分級体２０および中間粉排出管１６の表面から離れるよ
うになり、粗粉流は開口２２の位置において方向変換さ
れて粗粉排出管２４に至り、粗粉が回収される。かくし
て粒子は細粉と中間粉と粗粉とに分級される。Next, the operation of the above embodiment will be explained. In the above embodiment, the airflow containing particles from the pipe 13 is guided to the conduit 28 with the particles sufficiently dispersed, introduced from the particle supply port 14, and ejected as a jet, and the flow passes through a narrow annular region. Subsequently, a wall flow is formed that adheres to and flows along the surface of the lower half 12b of the classifier 12, and at this time, the intermediate powder flow is concentrated from the gap 20 to the opening 18 with the intermediate powder suspended and entrained. The powder flows like this and reaches the intermediate powder discharge pipe 16, where the intermediate powder is collected. In the above process, the fine powder is suspended and entrained by the flowing fine powder flow so as to adhere to the surface of the lower half 12b of the classifier 12 as a viscous flow inside the intermediate powder flow, and flows from the gap 20 to the opening 29. The fine powder is curved so as to be concentrated and reaches the fine powder discharge pipe 30, where the fine powder is collected. In addition, the coarse powder passes through the annular region and continues to move straight due to the action of inertia based on the coarse powder velocity corresponding to the airflow velocity, and gradually
The coarse powder flow is separated from the surface of the classifier 20 and the intermediate powder discharge pipe 16, and the direction of the coarse powder flow is changed at the position of the opening 22 to reach the coarse powder discharge pipe 24, where the coarse powder is recovered. The particles are thus classified into fine powder, intermediate powder and coarse powder.
上記実施例によれば、分級体の表面に沿った壁面流は分
級体の下半部に臨んだ開口から気流を乱さないように集
中されて中間粉流へと確実に案内されて中間粉排出管に
至るようになるとともに、分級体の下半部にて中間粉排
出管に臨んだ開口から集中されて細粉流へと確実に案内
されて細粉排出管に至るので、粒子の分級装置の構造を
簡易にすることができ、また、分級精度をはじめとする
分級性能を向上させることができる。さらに、分級体ま
たは中間粉排出管を調整具をもちいて軸方向に移動させ
て分級体の下半部と中間粉排出管の開口との間隙を調節
することにより、細粉流流量、中間粉流流量と粗粉流流
量との比率を調整して、上記流量がいずれかに過度に偏
して流動することによる流量の平衡の不安定ならびに壁
面流の乱れを抑制することができて分級精度をはじめと
する分級性能の向上をさらに改善させることができる。According to the above embodiment, the wall flow along the surface of the classifier is concentrated through the opening facing the lower half of the classifier so as not to disturb the airflow, and is reliably guided to the intermediate powder flow, and the intermediate powder is discharged. The particle classification device The structure of the structure can be simplified, and classification performance including classification accuracy can be improved. Furthermore, by moving the classifier or the intermediate powder discharge pipe in the axial direction using an adjustment tool to adjust the gap between the lower half of the classifier and the opening of the intermediate powder discharge pipe, the fine powder flow rate can be adjusted. By adjusting the ratio between the flow rate and the coarse powder flow rate, it is possible to suppress instability of the flow rate equilibrium and turbulence of the wall flow due to the flow rate being excessively biased to either side, thereby improving classification accuracy. It is possible to further improve the classification performance including the following.
本発明の実施態様は上記実施例のみに限定されるもので
はなく、多くの態様が採用可能である。The embodiments of the present invention are not limited to the above embodiments, and many embodiments can be adopted.
本発明は上記実施例より明らかなように、分級体の表面
に沿って流れる壁面流はそれぞれの開口から集中して細
粉流および中間流へと確実に案内されるので壁面流の乱
れが抑制されてコアンダ効果による分級特性を充分に利
用することができて粒子の分級性能を著しく向上できて
、また、分級装置の構造ならびに運転調整を簡易にする
ことができるなど実用上の効果は多大である。As is clear from the above embodiments, the present invention allows the wall flow flowing along the surface of the classifier to be concentrated from each opening and reliably guided into the fine powder flow and the intermediate flow, thereby suppressing turbulence in the wall flow. It has many practical effects, such as being able to make full use of the classification characteristics due to the Coanda effect, significantly improving the particle classification performance, and simplifying the structure and operation adjustment of the classification device. be.
第１図は本発明の一実施例における粒子の分級装置の要
部断面図である。
１０・・・・・・分級装置 １２・・・・・・分級
体１４・・・・・・粒子供給口 １６・・・・・・中
間粉排出管１８・・・・・・開口 ２０・・・
・・・間隙２２・・・・・・開口 ２４・・・
・・・粗粉排出管２９・・・・・・開口 ３０
・・・・・・細粉排出管３４．４８・・・・・・調整具FIG. 1 is a sectional view of a main part of a particle classification device according to an embodiment of the present invention. 10... Classifier 12... Classifier 14... Particle supply port 16... Intermediate powder discharge pipe 18... Opening 20...・
...Gap 22...Opening 24...
... Coarse powder discharge pipe 29 ... Opening 30
...Fine powder discharge pipe 34.48 ...Adjustment tool
Claims (1)
粉と中間粉と粗粉とに分離する粒子の分級装置において
、分級体の軸方向の表面に沿って設けた粒子供給口と、
分級体の下半部に臨んだ開口を有する中間粉排出管と、
分級体の下半部に中間粉排出管に臨んだ開口を有する細
粉排出管と、分級体および中間粉排出管の表面から離れ
た位置に開口を有する粗粉排出管とからなることを特徴
とする粒子の分級装置。 ２）分級体の軸方向の頂部に調整具を備え、分級体の下
半部と中間粉排出管の開口との間隙を調節しうることを
特徴とする請求項１記載の粒子の分級装置。 ３）中間粉排出管を軸方向に移動する調整具を備え、分
級体の下半部と中間粉排出管の開口との間隙を調節しう
ることを特徴とする請求項１記載の粒子の分級装置。[Claims] 1) In a particle classification device that separates fine powder, intermediate powder, and coarse powder by flowing an air flow containing particles along the surface of a classification body, A particle supply port provided with a
an intermediate powder discharge pipe having an opening facing the lower half of the classification body;
It is characterized by consisting of a fine powder discharge pipe having an opening facing the intermediate powder discharge pipe in the lower half of the classification body, and a coarse powder discharge pipe having an opening at a position away from the surface of the classification body and the intermediate powder discharge pipe. Particle classification device. 2) The particle classification device according to claim 1, characterized in that an adjustment tool is provided at the top of the classifier in the axial direction to adjust the gap between the lower half of the classifier and the opening of the intermediate powder discharge pipe. 3) Classification of particles according to claim 1, further comprising an adjustment tool for moving the intermediate powder discharge pipe in the axial direction, so as to be able to adjust the gap between the lower half of the classification body and the opening of the intermediate powder discharge pipe. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5034588A JPH01224082A (en) | 1988-03-03 | 1988-03-03 | Particle classifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5034588A JPH01224082A (en) | 1988-03-03 | 1988-03-03 | Particle classifying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01224082A true JPH01224082A (en) | 1989-09-07 |
| JPH0477635B2 JPH0477635B2 (en) | 1992-12-08 |
Family
ID=12856326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5034588A Granted JPH01224082A (en) | 1988-03-03 | 1988-03-03 | Particle classifying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01224082A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012135730A (en) * | 2010-12-27 | 2012-07-19 | Tokuju Corp | Classifier using inertial force |
| JP2016187759A (en) * | 2015-03-29 | 2016-11-04 | 正行 片倉 | Classifier |
| KR20170008599A (en) * | 2015-07-14 | 2017-01-24 | 현대자동차주식회사 | Particle classifying apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556433A (en) * | 1978-06-28 | 1980-01-17 | Nisshin Steel Co Ltd | Stainless steel radiator and production thereof |
-
1988
- 1988-03-03 JP JP5034588A patent/JPH01224082A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556433A (en) * | 1978-06-28 | 1980-01-17 | Nisshin Steel Co Ltd | Stainless steel radiator and production thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012135730A (en) * | 2010-12-27 | 2012-07-19 | Tokuju Corp | Classifier using inertial force |
| JP2016187759A (en) * | 2015-03-29 | 2016-11-04 | 正行 片倉 | Classifier |
| KR20170008599A (en) * | 2015-07-14 | 2017-01-24 | 현대자동차주식회사 | Particle classifying apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0477635B2 (en) | 1992-12-08 |
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