JPH02104885U

JPH02104885U -

Info

Publication number: JPH02104885U
Application number: JP12804988U
Authority: JP
Priority date: 1988-09-30
Filing date: 1988-09-30
Publication date: 1990-08-21
Also published as: JPH0337752Y2

Description

[Brief explanation of drawings]

第１図は本考案の遠心分級器に係わる装置にお
いて、圧縮空気を分粒流体として粉粒体を搬送す
る経路を示す要領図、第２図は本考案の一実施例
による遠心分級器の破断側面図で、第３図におけ
る断面２−２を示し、第３図は同じく正面断面図
で、第２図における断面３−３、第４図は保持片
が塞板に装嵌された状態を示す部分斜視図、第５
図は一実施例による保持片の斜視図、第６図は挟
持周溝とともに変形とした一例の保持片斜視図、
第７図は保持片に代る部分を設けて一体型とした
一例の塞板部分斜視図を示す。１０：遠心分級器．１２：分粒流体入口．１４
：粉粒体入口．１５：粗粉出口．１８：吸引器．
１９：圧縮空気入口．２０：細粉出口．２２：ハ
ウジング．２５：回転子．２７：駆動軸．２９：
開口部．３０：分粒領域．３１：環状リング．３
３：塞板．３４：保持片．３５：周溝。 Fig. 1 is a schematic diagram showing a route for transporting powder and granules using compressed air as a sizing fluid in an apparatus related to the centrifugal classifier of the present invention, and Fig. 2 is a diagram showing a fracture of the centrifugal classifier according to an embodiment of the present invention. The side view shows cross section 2-2 in FIG. 3, FIG. 3 is a front sectional view, and cross section 3-3 in FIG. 2, and FIG. Partial perspective view shown, No. 5
The figure is a perspective view of a holding piece according to one embodiment, and FIG. 6 is a perspective view of an example holding piece deformed together with the clamping circumferential groove.
FIG. 7 is a perspective view of an example of an integrated closure plate provided with a portion in place of the holding piece. 10: Centrifugal classifier. 12: Sizing fluid inlet. 14
: Powder inlet. 15: Coarse powder outlet. 18: Suction device.
19: Compressed air inlet. 20: Fine powder outlet. 22: Housing. 25: Rotor. 27: Drive shaft. 29:
Aperture. 30: Grain size area. 31: Annular ring. 3
3: Blocking plate. 34: Holding piece. 35: Peripheral groove.

Claims

[Claims for Utility Model Registration] (1) An opening that is mounted in a housing that includes an annular ring part so as to rotate inside the annular ring part, that forms a gap therebetween, and that communicates with this gap. A swirling flow is generated by rotating a rotor having a part and feeding a particle sizer fluid from the fluid inlet of the housing, and powder is supplied to this from the powder inlet provided in the annular ring part. As a result, coarse powder and fine powder are separated by centrifugal force in the particle dividing area of the opening near the outer periphery of the rotor, and the coarse powder is placed in front of the powder inlet with respect to the rotation direction of the rotor. The fine powder is transported out through the coarse powder outlet communicating with the opening, while the fine powder is directed to the fine powder outlet through an axial passage provided in the axial center of the rotor and communicating with the sizing area. In a centrifugal classifier that flows inward and is carried out together with the fluid, a concentric stepped depression is provided on the inner periphery of the annular ring portion with a constant width leaving a little on both sides of the annular ring portion, and From the powder inlet opening in the recess to the coarse powder outlet opening along the rotational direction of the rotor, the inner peripheral surface of the recess of the annular ring portion extends over the entire area adjacent to both openings. A centrifugal classifier characterized in that a means is added for ejecting pressurized fluid from both side step walls that are perpendicular to the inner circumferential surface so as to cover the surface parallel to the inner circumferential surface. (2) Added means for ejecting pressurized fluid from one side of the step walls on both sides, which are perpendicular to the inner circumferential surface of the recess of the annular ring portion, in a manner parallel to the inner circumferential surface and covering the surface. A centrifugal classifier according to claim 1 of the utility model registration claim, characterized in that: