JPH0312366Y2 - - Google Patents
Info
- Publication number
- JPH0312366Y2 JPH0312366Y2 JP4062486U JP4062486U JPH0312366Y2 JP H0312366 Y2 JPH0312366 Y2 JP H0312366Y2 JP 4062486 U JP4062486 U JP 4062486U JP 4062486 U JP4062486 U JP 4062486U JP H0312366 Y2 JPH0312366 Y2 JP H0312366Y2
- Authority
- JP
- Japan
- Prior art keywords
- classifier
- powder
- inner cylinder
- outer cylinder
- case
- 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 description 15
- 239000002245 particle Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Crushing And Grinding (AREA)
Description
【考案の詳細な説明】
ａ 産業上の利用分野
本考案は粉体を効率良く分級できる回転翼型空
気分級機に関する。[Detailed Description of the Invention] a. Field of Industrial Application The present invention relates to a rotary vane type air classifier that can efficiently classify powder.
ｂ 従来の技術
回転翼型空気分級機（以下分級機と称す）は竪
型ローラミル等に組込まれ、粉砕効率を向上する
ために用いられている。b. Prior Art A rotary vane air classifier (hereinafter referred to as a classifier) is incorporated into a vertical roller mill, etc., and is used to improve pulverization efficiency.
従来の分級機においては、風車の回転数を変え
ることにより分級機内を通過する空気の流量を変
えたり、回転翼の回転数を調整することにより、
目的の粒度の粉体と残りの粉体とに分級してい
た。 In conventional classifiers, the flow rate of air passing through the classifier is changed by changing the rotation speed of the windmill, and the rotation speed of the rotor blades is adjusted.
The powder was classified into the powder of the desired particle size and the remaining powder.
ｃ 本考案が解決しようとする問題点
しかし分級機内を通過する空気の流量を変える
と必然的に分級機の処理能力も変化するという欠
点があつた。c. Problems to be solved by the present invention However, there is a drawback that changing the flow rate of air passing through the classifier inevitably changes the throughput of the classifier.
ｄ 問題点を解決するための手段
本考案は処理能力を変えることなく、つまり風
量を変えることなく効率よく目的の粒度を持つた
粉体と残りの粉体とに分級できる分級機を提供す
るものでありその要旨は、内筒および／または外
筒を、内筒の場合には分級用回転翼の内側に、ま
た外筒の場合には分級用回転翼の外側に、それぞ
れ上下に移動可能に垂下させて設けたことを特徴
とする回転翼型空気分級機にある。d.Means for solving the problem The present invention provides a classifier that can efficiently classify powder with the desired particle size and remaining powder without changing the processing capacity, that is, without changing the air volume. The gist is that the inner cylinder and/or the outer cylinder can be moved up and down, in the case of the inner cylinder, to the inside of the classification rotor, and in the case of the outer cylinder, to the outside of the classification rotor. This rotary vane type air classifier is characterized by being installed in a hanging manner.
第１図に示すものは、その具体例であつて、ロ
ーラ１で粉砕された原料は環状空間２より吹き上
げる空気の流れに乗つて分級機３に運ばれ、ここ
で目的の粒度を持つた微粉と残りの粉体である粗
粉とに分級される。 The one shown in Fig. 1 is a specific example of this, in which the raw material pulverized by the roller 1 is carried by the flow of air blown up from the annular space 2 to the classifier 3, where it is pulverized into fine powder with the desired particle size. and the remaining powder, coarse powder.
微粉は排出口４から系外へ排出され、バツグフ
イルターあるいはサイクロンによつて捕集され製
品となる。一方粗粉は粉砕テーブル５上に落下し
ローラ１で再び粉砕される。 The fine powder is discharged from the system through the discharge port 4 and collected by a bag filter or cyclone to become a product. On the other hand, the coarse powder falls onto the crushing table 5 and is crushed again by the rollers 1.
本考案は、第１図に示されるように、分級用回
転翼６に面して、上下に調節可能に内筒７及び外
筒８を有しており、これらのいずれかを上下させ
ることにより、分級用回転翼６の間を通過する空
気の通過断面積を変化させることができる。この
場合環状空間２より吹き上げる空気の量は一定な
ので、回転翼に面する空気の通過断面積が変化す
れば、ここを通過する空気のスピードも変化し、
それによつて微粉と粗粉とに分級される粒度も変
わる。 As shown in FIG. 1, the present invention has an inner cylinder 7 and an outer cylinder 8 facing the classification rotor 6 and which can be adjusted up and down. , the cross-sectional area of air passing between the classification rotor blades 6 can be changed. In this case, the amount of air blown up from the annular space 2 is constant, so if the cross-sectional area of the air passing facing the rotor changes, the speed of the air passing through it also changes.
Accordingly, the particle size classified into fine powder and coarse powder also changes.
本考案の回転翼型空気分級機を常用能力17t／
ｈの竪型ローラミルに設置し、微粉の目的粒度に
応じて内筒７あるいは外筒８の挿入深さを調整し
てセメント原料を粉砕、分級したところ、従来の
固定内筒を有した分級機を使用した場合に比べ
て、製品として回収する微粉の量が５％増加し
た。 The rotary vane type air classifier of this invention has a regular capacity of 17 tons/
When the cement raw material was crushed and classified by installing it in a vertical roller mill of h and adjusting the insertion depth of the inner cylinder 7 or outer cylinder 8 according to the target particle size of the fine powder, it was found that the classifier with a conventional fixed inner cylinder The amount of fine powder recovered as a product increased by 5% compared to when using
図面は本考案による分級機の概念的縦断面図で
ある。
１……ローラ、２……環状空間、３……分級
機、４……排出口、５……粉砕テーブル、６……
分級用回転翼、７……内筒、８……外筒。
The drawing is a conceptual longitudinal sectional view of a classifier according to the present invention. 1... Roller, 2... Annular space, 3... Classifier, 4... Discharge port, 5... Grinding table, 6...
Classifying rotor, 7...inner cylinder, 8...outer cylinder.
Claims (1)
級用回転翼の内側に、また外筒の場合には分級用
回転翼の外側に、それぞれ上下に移動可能に垂下
させて設けたことを特徴とする回転翼型空気分級
機。 The inner cylinder and/or the outer cylinder are provided so as to be movable up and down, inside the classification rotor in the case of the inner cylinder, and outside the classification rotor in the case of the outer cylinder. A rotary vane air classifier featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4062486U JPH0312366Y2 (en) | 1986-03-20 | 1986-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4062486U JPH0312366Y2 (en) | 1986-03-20 | 1986-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62151987U JPS62151987U (en) | 1987-09-26 |
| JPH0312366Y2 true JPH0312366Y2 (en) | 1991-03-25 |
Family
ID=30854870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4062486U Expired JPH0312366Y2 (en) | 1986-03-20 | 1986-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0312366Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994022599A1 (en) * | 1993-03-31 | 1994-10-13 | Onoda Cement Co., Ltd. | Vortex type air classifier |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62266184A (en) * | 1986-05-14 | 1987-11-18 | 株式会社 栗本鉄工所 | Centrifugal sorter |
| JPS62268105A (en) * | 1986-05-16 | 1987-11-20 | 三菱マテリアル株式会社 | Cylindrical surge absorber |
| JP4601055B2 (en) * | 2005-02-03 | 2010-12-22 | ホソカワミクロン株式会社 | Classifier |
| JP6570270B2 (en) * | 2015-03-10 | 2019-09-04 | 株式会社栗本鐵工所 | Crusher with classification function |
-
1986
- 1986-03-20 JP JP4062486U patent/JPH0312366Y2/ja not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994022599A1 (en) * | 1993-03-31 | 1994-10-13 | Onoda Cement Co., Ltd. | Vortex type air classifier |
| US5533629A (en) * | 1993-03-31 | 1996-07-09 | Onodo Cement Co., Ltd | Vortex pneumatic classifier |
| AU673059B2 (en) * | 1993-03-31 | 1996-10-24 | Taiheiyo Cement Corporation | Vortex type air classifier |
| AU679886B2 (en) * | 1993-03-31 | 1997-07-10 | Taiheiyo Cement Corporation | Vortex type air classifier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62151987U (en) | 1987-09-26 |
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