JPH0334302Y2 - - Google Patents
Info
- Publication number
- JPH0334302Y2 JPH0334302Y2 JP15172288U JP15172288U JPH0334302Y2 JP H0334302 Y2 JPH0334302 Y2 JP H0334302Y2 JP 15172288 U JP15172288 U JP 15172288U JP 15172288 U JP15172288 U JP 15172288U JP H0334302 Y2 JPH0334302 Y2 JP H0334302Y2
- Authority
- JP
- Japan
- Prior art keywords
- line
- coarse powder
- powder
- classifier
- classification
- 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.)
- Expired
Links
- 239000000843 powder Substances 0.000 claims description 36
- 239000012530 fluid Substances 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 238000011084 recovery Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Landscapes
- Combined Means For Separation Of Solids (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は供給粉粒体を旋回流による遠心力の作
用で粗粉と細粉とに分粒し、それぞれを回収する
気流による分級装置に関し、更に詳細には一基の
分級機で切替え操作により自動的に所定時間を連
続して繰り返し分級を行なうことにより、高精度
の分級製品が回収率よく得られるようにした分級
装置に関するものである。[Detailed description of the invention] [Field of industrial application] The present invention relates to an airflow classification device that divides supplied powder into coarse powder and fine powder by the action of centrifugal force caused by swirling flow, and collects each powder. More specifically, the present invention relates to a classification device that allows highly accurate classified products to be obtained at a high recovery rate by automatically and continuously repeating classification for a predetermined period of time using a single classifier by switching operations. .
［従来の技術］
各種物質の粉末はいずれも空気中における凝集
度はかなり高く、分散したすべての粒子を個々の
粒子として同時に回収することは実際上不可能に
近く、従つて分級工程時に粒子中に含まれる大小
さまざまな凝集体をできるだけ個々の粒子に分散
させることが分級精度の向上につながることにな
る。その精度向上については種々の研究開発が試
みられているが、現状では数基の分級機を用い重
複した分級操作を採り入れた例が多く知られてい
る。[Prior Art] The degree of agglomeration of powders of various substances in the air is quite high, and it is practically impossible to collect all dispersed particles as individual particles at the same time. Dispersing aggregates of various sizes contained in the particles into individual particles as much as possible will lead to improved classification accuracy. Various research and development efforts have been made to improve the accuracy, but currently there are many known examples in which multiple classifiers are used and multiple classification operations are performed.
［考案が解決しようとする問題点］
分散を良くするためには、主として粗粉中に含
まれる細粉を帯同した凝集体を解体させることが
有効であり、その手段としては、回収した粗粉を
人手によつて再度供給フイーダを介し投入して繰
り返し分級する方法の外、人手によらず粗粉を別
に備えた分級機に搬送し、重複した分級操作を行
なうという方法などがある。[Problems to be solved by the invention] In order to improve the dispersion, it is effective to break up the aggregates containing the fine powder contained in the coarse powder. In addition to the method of manually inputting the powder through the feeder and repeatedly classifying it, there is also a method of transporting the coarse powder to a separately equipped classifier and performing redundant classification operations without manual effort.
人手によつて粗粉を繰り返し分級する方法の場
合は、付着力の強い物質の粉粒体で凝集度が高い
ものでも、物質に応じて繰り返し回数をふやすこ
とで分散効果は上がるが、作業者による労力の負
担が大きい上にいかにも非能率的である。 In the case of a method in which coarse powder is repeatedly classified manually, the dispersion effect can be improved by increasing the number of repetitions depending on the substance, even if the particles are made of strongly adhesive substances and have a high degree of agglomeration. In addition to requiring a large amount of labor, it is also inefficient.
また、分級機を２基以上の複数基を備えて重複
分級を行なう場合は、単純に重複した分級操作で
あるため、粉粒体の物質に関係なく一応の分級精
度を得るためには相応の基数が必要となり、配管
構成が複雑になることや、設置場域が広くなるな
どで設備費が多くなるという不利な面があつた。 In addition, when multiple classifiers are installed to perform redundant classification, it is simply a redundant classification operation, so it is necessary to obtain a certain degree of classification accuracy regardless of the substance of the powder or granule. The disadvantages are that more bases are required, the piping configuration becomes more complicated, and the installation area becomes wider, which increases equipment costs.
［問題を解決するための手段および作用］
本考案は、これらの問題点を解決する手段とし
て、一基の分級機に接続する搬送ラインを改変す
ることにより、切替え機構の操作によつて粗粉を
循環させて分級機へもどし、自動的に所定の時間
を連続して繰り返し分級を行なつた後回収すると
いう構成にしたものである。[Means and effects for solving the problem] The present invention, as a means to solve these problems, modifies the conveyance line connected to one classifier, and by operating the switching mechanism, the coarse powder The material is circulated and returned to the classifier, and is automatically and repeatedly classified for a predetermined period of time before being collected.
以下に本考案の実施例に基づき、図面を参照し
ながら詳細な説明をする。 DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed explanation will be given below based on embodiments of the present invention with reference to the drawings.
第１図は回転子による遠心分級機を主体とした
本考案分級装置の作動説明図である。 FIG. 1 is an explanatory diagram of the operation of the classification apparatus of the present invention, which is mainly a centrifugal classifier using a rotor.
分級機１０の回転子１１はモータ（図示せず）
によつて矢印Ａ方向に回転し、圧流体が送入ライ
ン１３より送られると回転子１１に等間隔放射状
に固着された多数個のフイン１２によつて旋回流
が発生する。 The rotor 11 of the classifier 10 is a motor (not shown)
When the rotor 11 rotates in the direction of arrow A, and pressurized fluid is sent from the feed line 13, a swirling flow is generated by a large number of fins 12 radially fixed to the rotor 11 at equal intervals.
このとき、フイーダ１４よりホツパ１５を介し
供給ライン１６を経て原料粉体が供給されると、
遠心力の作用によつて粉体中の粗粉は環状リング
１７の内周１８に沿つて矢印Ａの回転方向に移動
し、粗粉搬送ライン１９により送出される。 At this time, when raw material powder is supplied from the feeder 14 via the hopper 15 and the supply line 16,
Due to the action of centrifugal force, the coarse powder in the powder moves along the inner periphery 18 of the annular ring 17 in the rotational direction of arrow A, and is sent out by the coarse powder conveying line 19.
また、細粉は回転子１１に設けたフイン１２の
相互の間隔を内側へ通り抜けて軸心方向に向かい
軸心の軸線方向に設けた通路を経て細粉搬送ライ
ン２０を通過し回収部門に至る。 Further, the fine powder passes inward through the mutual spacing between the fins 12 provided on the rotor 11, passes in the axial direction of the rotor, passes through a passage provided in the axial direction of the shaft center, passes through the fine powder conveying line 20, and reaches the collection section. .
粗粉搬送ライン１９に設ける切替え機構２１
は、圧流体源から送られてくる圧縮空気が切替え
電磁弁２２の作動によつてケース２３内のピスト
ン２４をいずれかの片側に圧着させることで、ケ
ース２３の搬送方向二次側に分岐して継続する回
収ライン２５、循環ライン２６のうちいずれか一
方に連通するようピストン２４を貫通して二つの
連通路が設けられている。 Switching mechanism 21 provided in coarse powder conveyance line 19
The compressed air sent from the pressure fluid source is branched to the secondary side of the case 23 in the conveyance direction by pressing the piston 24 inside the case 23 to one side by the operation of the switching solenoid valve 22. Two communication passages are provided through the piston 24 so as to communicate with either one of the recovery line 25 and the circulation line 26 that continue from the piston 24 to the recovery line 25 and the circulation line 26.
第１図の例では、切替え電磁弁２２の操作によ
つて循環ライン２６に連通した状態を示したもの
で、その循環ライン２６はエジエクタ２７を介し
圧流体送入ライン１３へ合流する。 The example in FIG. 1 shows a state in which the switching solenoid valve 22 is operated to communicate with the circulation line 26, and the circulation line 26 joins the pressurized fluid feed line 13 via an ejector 27.
第２図は本考案による繰り返し分級工程におい
て供給原料に対する切替え機構の時間割配分を示
した一実施例の線図である。 FIG. 2 is a diagram of an embodiment showing the time allocation of the switching mechanism to the feedstock in the repeated classification process according to the present invention.
回転子１１が1650rpmの速度で回転し、圧流体
が送入されている状態の分級機１０に対し、フイ
ーダ１４による原料供給と同時に循環ライン２６
を開にすると、粉体は相当の速度で循環し始め繰
り返し分級が開始される。原料を１分間供給した
後フイーダ１４の動力通電を閉として供給を停
止、この間の供給分が十分循環するまでの15秒間
循環ライン２６は開の状態を続け、その後切替え
て５秒間で粗粉を回収し第１回のサイクルが終わ
るというもので、引続き同じ手順により第２回目
のサイクル開始となる。 The rotor 11 rotates at a speed of 1,650 rpm , and the feeder 14 supplies raw materials to the classifier 10, which is in a state where pressurized fluid is being fed.
When it is opened, the powder begins to circulate at a considerable speed and repeated classification begins. After feeding the raw material for 1 minute, the power to the feeder 14 is turned off to stop the supply. During this time, the circulation line 26 remains open for 15 seconds until the supplied amount is sufficiently circulated, and then it is switched to remove coarse powder in 5 seconds. The first cycle is completed by collection, and the second cycle begins by following the same procedure.
今回の実施例ではテストとして供試原料にけい
砂を用いた場合を示したものであり、すべての粉
体に共用できるものではなく、従つて粉体の物質
その他の条件によつて、回転子１１の回転速度と
ともに適切な時間割配分を選択することが肝要で
ある。 This example shows the case where silica sand was used as the test material, and it cannot be used for all powders. Therefore, depending on the material of the powder and other conditions, the rotor It is essential to select the appropriate time allocation along with the rotation speed of 11.
［考案の効果］
本考案のものによつて細粉の回収率が向上する
ことを示す例として、同一条件によつて回転子に
よる分級機を用い、従来型（繰り返しなし）の場
合との比較テストを行なつた結果、
テスト条件：回転子の回転速度 1650rpm
空気量 1.8m3／
min
圧縮空気圧 ２Kg／cm2
供試原料 けい砂（−
15μ）
原料供給量 500gr
テスト時間 15min
但し、本考案のものは第２図に示した線図の時
間割配分による。[Effect of the invention] As an example showing that the recovery rate of fine powder is improved by the invention, a comparison was made with a conventional type (without repetition) using a rotor-based classifier under the same conditions. As a result of the test, test conditions: Rotor rotation speed 1650 rpm Air volume 1.8m 3 /
min Compressed air pressure 2Kg/ cm2 Test raw material Silica sand (-
15μ) Raw material supply amount: 500gr Test time: 15 min However, the timetable of the present invention is based on the timetable shown in the diagram shown in Figure 2.
結果： 細粉回収率 従来型 44.5％ 本考案 56.6％ となつた。 Results: Fine powder recovery rate Conventional 44.5% This invention 56.6% It became.
従来、回転子を用いた分級機においては、細粉
の分級精度は高いが、その反面回収率が劣るとい
う長短両面を持つていたが、本考案によつて細粉
回収率も向上することが立証された。 Conventionally, classifiers using a rotor had both advantages and disadvantages, such as high classification accuracy of fine powder, but on the other hand, poor recovery rate.However, with this invention, the recovery rate of fine powder can also be improved. Proven.
また、本考案では一基の分級機によつて粉体の
物質に適応した繰り返し分級を、タイマー操作に
よつて自動的に任意時間連続して行なえるように
することで、従来より実施されている人手による
繰り返し分級や、複数基の分級機を設置するのに
比べ、省力化はもとより設備費の軽減にもなり、
回収率の向上とともに高精度、高能率の優れた効
果をもたらすものである。 In addition, the present invention allows repeated classification suitable for powder substances to be performed continuously for any length of time automatically by operating a timer using a single classifier, which is different from conventional methods. Compared to repeated manual classification or the installation of multiple classifiers, this method not only saves labor but also reduces equipment costs.
It brings about excellent effects such as improved recovery rate, high precision, and high efficiency.
なお、本考案の実施例では回転子を用いた遠心
分級機を主体とする装置について説明したが、こ
れに限るものではなく、例えば従来より多く採用
されている接線方向に入口を持つた遠心分級機を
主体としてもよく、この外本考案の枢要部となる
切替え機構もピストン移動型に固執することな
く、種々の形式が可能なことはいうまでもない。 In the embodiments of the present invention, a device mainly based on a centrifugal classifier using a rotor was explained, but the invention is not limited to this. It goes without saying that the switching mechanism, which is a key part of this invention, is not limited to the piston-moving type and can be of various types.
第１図は回転子による遠心分級機を主体とした
本考案の作動説明図、第２図は本考案による一実
施例で、繰り返し分級工程において供給原料に対
する切替え機構の時間割配分を示した線図。
１０：分級機、１１：回転子、１３：圧流体送
入ライン、１４：フイーダ、１６：原料供給ライ
ン、１９：粗粉搬送ライン、２０：細粉搬送ライ
ン、２１：切替え機構、２２：電磁弁、２４：ピ
ストン、２５：粗粉回収ライン、２６：循環ライ
ン、２７：エジエクタ。
Fig. 1 is an explanatory diagram of the operation of the present invention, which is mainly based on a centrifugal classifier using a rotor, and Fig. 2 is an embodiment of the present invention, which is a diagram showing the time allocation of the switching mechanism for the feed material in the repeated classification process. . 10: Classifier, 11: Rotor, 13: Pressure fluid feed line, 14: Feeder, 16: Raw material supply line, 19: Coarse powder conveyance line, 20: Fine powder conveyance line, 21: Switching mechanism, 22: Electromagnetic Valve, 24: Piston, 25: Coarse powder collection line, 26: Circulation line, 27: Ejector.
Claims (1)
れに接続してフイーダを含む原料供給ライン、圧
流体送入ライン、細粉搬送ライン、および粗粉搬
送ラインをそれぞれ配設する分級装置において、
粗粉搬送ラインに切替え機構を設け、その二次側
に分岐して継続する回収ライン、循環ラインのう
ちいずれか一方に連通するよう切替え自在とし、
循環ラインはエジエクタを介し圧流体送入ライン
へ合流させることを特徴とした分級装置。 A classifier that separates coarse powder and fine powder using centrifugal force, and a raw material supply line including a feeder connected to this, a pressure fluid feed line, a fine powder conveyance line, and a coarse powder conveyance line are installed respectively. In the classification device,
A switching mechanism is provided in the coarse powder conveyance line, and the line can be freely switched to connect to either the collection line or the circulation line that branches off to the secondary side and continues.
This classification device is characterized in that the circulation line is connected to the pressure fluid supply line via an ejector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15172288U JPH0334302Y2 (en) | 1988-11-22 | 1988-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15172288U JPH0334302Y2 (en) | 1988-11-22 | 1988-11-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0275186U JPH0275186U (en) | 1990-06-08 |
| JPH0334302Y2 true JPH0334302Y2 (en) | 1991-07-19 |
Family
ID=31426021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15172288U Expired JPH0334302Y2 (en) | 1988-11-22 | 1988-11-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0334302Y2 (en) |
-
1988
- 1988-11-22 JP JP15172288U patent/JPH0334302Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0275186U (en) | 1990-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0241930B1 (en) | Particulate material treating apparatus | |
| US3289950A (en) | Method of and apparatus for grinding moist material | |
| WO2021093256A1 (en) | Raw material vertical mill external circulation system and process | |
| JPH0140660B2 (en) | ||
| CN111013734B (en) | Semi-hydrated phosphogypsum conditioner | |
| US2588106A (en) | Sheetsxsheet i | |
| JPH0334302Y2 (en) | ||
| JP3173062B2 (en) | Classifier and crusher equipped with the classifier | |
| SE454411B (en) | ADJUSTABLE PAINTING CHAMBER IN DESIGN INTEGRATION PLANT | |
| CN117019288A (en) | A rare earth multi-stage crushing device and method | |
| EP0788842A1 (en) | Grader | |
| US5934483A (en) | Bi-chamber air classifier with coaxial ascending dispersed feed | |
| US5251383A (en) | Apparatus for and a method of disposing of wet sludge | |
| EP0140613A3 (en) | Apparatus for and method of obtaining a comminuted product from a solid feed material | |
| US4077841A (en) | Method and apparatus for treating slurries | |
| RU2407601C1 (en) | Method of air-centrifugal classification of powders and device to this end | |
| SU1328002A1 (en) | Installation for disintegration and pneumatic separation of loose materials | |
| US3406950A (en) | Apparatus for conditioning material | |
| GB1024091A (en) | Method and apparatus for air classifying solid particles | |
| JPH10338518A (en) | Production of calcium carbonate | |
| JP2796928B2 (en) | Centrifugal fluidized bed separation method and apparatus for heterogeneous powder mixture | |
| JPS60161721A (en) | Powder airflow mixing method and device | |
| US2702630A (en) | Classification of particles | |
| US2592348A (en) | Process of producing animal feeds | |
| SU1717267A1 (en) | Device for classification of powder-like materials |