CN2344100Y - Rotary grate cage centrifugal classifier - Google Patents
Rotary grate cage centrifugal classifier Download PDFInfo
- Publication number
- CN2344100Y CN2344100Y CN 98243392 CN98243392U CN2344100Y CN 2344100 Y CN2344100 Y CN 2344100Y CN 98243392 CN98243392 CN 98243392 CN 98243392 U CN98243392 U CN 98243392U CN 2344100 Y CN2344100 Y CN 2344100Y
- Authority
- CN
- China
- Prior art keywords
- blade
- fan blade
- comb cage
- rotation
- disk
- 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 - Fee Related
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Abstract
The utility model relates to a rotary grate cage centrifugal powder separator, which removes the large blade, the intermediate blade, the small blade and a spillage cover of the existing centrifugal powder separators. In the utility model, a small blade disk 18 is provided with a rotary grate cage, and the rotary grate cage is composed of a lower disk 22, a grate strip 25, an upper disk and a connecting piece; a large blade frame is provided with a strong blade 26 which is composed of a wind lifting segment, a blowing segment and a pressing segment which are combined into integration; the inner of a powder separating chamber is provided with a ring of baffle material grading plates 21; a rotary ring 20 which is provided with a centripetal blade 19 is arranged below a spillage disk 9, which makes inner circulation wind pass through the rotary grate cage. The utility model implements large wind rate and multiple classifications so as to achieve the purpose of high efficiency powder selection.
Description
The utility model relates to the powder industry technical field, is a kind of powder equipment that selects.
The centrifugal classifier of using always in the cement plant is made up of separating chamber 11, static-wing ring 12, inner core 7, urceolus 10, big blade 4, little fan blade 6, little fan blade disc 18, spreading disk 9, spreading cover 8, fine powder outlet 15, meal outlet 14, transmission device 3, reductor 1 and motor etc. as shown in Figure 1.
Spreading disk 9, spreading cover 8, little fan blade 6, big blade 4 etc., at motor, reductor 1 and transmission device 3 drive next superhigh speed rotation, the thickness material is by hopper 16, drop on the spreading disk 9, because centrifugal action, material is set aside, run into spreading cover 8, large granular materials loses kinetic energy and falls into meal pipe 14 and return grinding machine, rest materials is taken to little fan blade 6 places by the from bottom to top air-flow that the big blade rotation produces, and separates through little fan blade, and qualified fine powder continues to rise to big blade 4 places, thrown the inwall of urceolus 10 again, losing speed falls into 15 discharges of fine powder pipe, along interior, the air stream that annular space moves downward between urceolus is in inner core static-wing ring 12 place's negative pressure swabbing actions, enter the space of inner core by the slit of static-wing ring, gas is separation of material constantly in airtight powder concentrator like this.This powder concentrator is simple, easy to operate, but the finish fineness fluctuation is big, grinding efficiency is low.
The purpose of this utility model is to transform existing centrifugal classifier, makes that it is easy to operate, stable, the fineness fluctuation is little, improve grinding efficiency greatly, thereby the raising mill hourly output also improves the finished cement quality.
The utility model is to realize like this.To have the large and small fan blade of powder concentrator now and remove, powerful fan blade will be installed on the big blade frame, to strengthen circulated air; A comb cage is installed on little fan blade disc, and the comb cage is made up of some grid sections and a last dish, a lower wall etc., and the comb cage rotates with little fan blade disc, spreading disk; On the lid aerofoil in the dish outside on the comb cage, fix a circle air baffle ring, allow all wind by rotation comb cage; Cancel the spreading cover,, a circle backgauge graded plate is installed on inner core simultaneously in appropriate location (being the material concentrated phase area), the spreading disk outside; Below spreading disk, install one with the rotation circle of blade entad, together rotate with main shaft.The utility model is realized big air quantity, separating for several times, classification, thereby reaches high grinding efficiency.
The utility model is described in further detail for the contrast accompanying drawing below:
Fig. 1 is the vertical section figure of existing centrifugal classifier.
Fig. 2 is vertical section figure of the present utility model.
Fig. 2 is the improvement of Fig. 1.
One of improve: remove little fan blade 6, rotation comb cage be installed on little fan blade disc 18, rotation comb cage be lower wall 22 and on connecting piece 23 grid section 25 is linked between the dish 24, on coil and fix one on the 24 outer head cover aerofoils and enclose air baffle ring 5.
Two of improvement: remove former big blade 4, change powerful fan blade 25 into.
Three of improvement: cancel spreading cover 8,, fix a circle backgauge graded plate 21 on inner core in appropriate location (being the material concentrated phase area), the spreading disk outside.
Four of improvement: below spreading disk 9, fix a rotation circle 20 with blade 19 entad on main shaft with angle bar.
The utility model is like this work: rotation circle 20, spreading disk 9, comb cage and powerful fan blade 26 etc. drive next superhigh speeds rotation at motor, reductor 1 and transmission device 3, under powerful fan blade 25 effects, produce as the interior circulated air of air-flow of expressing strong of arrow among the figure.The thickness material drops on the spreading disk 9 by hopper 16, material is subjected to centrifugal action and dishes out, meet with ascending air, bigger particle, part coarse fodder and the fine powder of major part thrown on the backgauge graded plate 21 on the one hand, loses kinetic energy, falls on its entad blade 19 that rotates below, let go to the center by blade entad 19, the rising air blast to separation, will be wherein fines blow afloat, meal falls; The particle that fraction is bigger, part coarse fodder and fine powder are dished out, and climb over backgauge graded plate 21, bump against inner core 7 inwalls and lose kinetic energy, when sliding into 7 times reducings of inner core, separated by the rising air blast once more, coarse fodder falls and enters bottom meal outlet 14 discharges, and fine powder is blown afloat.
On the other hand, the fine powder that the fines that the overwhelming majority spreads out, part coarse fodder and bottom are blown afloat, blown afloat by from bottom to top swirling eddy, owing to be subjected to the drag effect of upper cap aerofoil and air baffle ring 5, be forced to turn between grid section from the comb cage with the air-flow of material and flow through, when bigger particle passes through the comb cage, flowing velocity is slower, is hit by the grid section 25 of high speed rotating, changes the direction of motion and strikes the inwall of inner core 7 and lose kinetic energy, along sliding to meal outlet 15 under the inwall, become meal and discharge.And qualified powder, speed through the comb cage is very fast, do not hit and smoothly by the comb cage by grid section, enter powerful fan blade, thrown the inwall of urceolus 10 by powerful fan blade 26, losing speed falls into fine powder outlet 15 and becomes finished product and discharge, the air that moves downward along annular space between inside and outside tube flows, under the suction of inner core static-wing ring 12 places negative pressure, enter the space of inner core by the slit of static-wing ring, gas like this constantly in circulation and separation of material.
By regulating the turnover of flashboard 17, circulated air passes through the flow velocity of comb cage in changing, thereby reaches the purpose that fineness is regulated.
Claims (4)
1, rotation comb cage centrifugal classifier, form by separating chamber (11), static-wing ring (12), inner core (7), urceolus (10), spreading disk (9), little fan blade disc (18), powerful fan blade (26), fine powder outlet (14), transmission mechanism (3), reductor (1) and motor, it is characterized in that: little fan blade disc (18) is gone up a rotation comb cage is installed, rotation comb cage by lower wall (22), go up dish (24), grid section (25), connecting piece (23) is formed, be welded with one outside the last dish and enclose air baffle ring (5) on upper cover plate.
2, rotation comb cage centrifugal classifier according to claim 1 is characterized in that: the spreading disk outside (being material concentrated phase area place) is set up a circle backgauge graded plate (21) and has been cancelled former spreading cover (8).
3, rotation comb cage centrifugal classifier according to claim 1 and 2 is characterized in that: powerful fan blade (26), powerful fan blade are installed by the wind enhanced section that can upwards carry wind, the air supply section that can outwards blow with can form to the air pressing section that presses down wind is synthetic on the big blade frame.
4, according to claim 1 or 2 or 3 described rotation comb cage centrifugal classifiers, it is characterized in that: the below in spreading disk (9), install one with the rotation circle (20) of blade (19) entad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98243392 CN2344100Y (en) | 1998-11-17 | 1998-11-17 | Rotary grate cage centrifugal classifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98243392 CN2344100Y (en) | 1998-11-17 | 1998-11-17 | Rotary grate cage centrifugal classifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2344100Y true CN2344100Y (en) | 1999-10-20 |
Family
ID=33989798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98243392 Expired - Fee Related CN2344100Y (en) | 1998-11-17 | 1998-11-17 | Rotary grate cage centrifugal classifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2344100Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272676A (en) * | 2013-05-22 | 2013-09-04 | 南通澳润建材科技有限公司 | Scatter grading device |
| CN105170463A (en) * | 2015-10-27 | 2015-12-23 | 张荣斌 | Powder selecting machine for mine |
| CN107855277A (en) * | 2017-11-17 | 2018-03-30 | 天津水泥工业设计研究院有限公司 | A kind of centripetal high-efficient powder concentrator movable vane piece and design method |
-
1998
- 1998-11-17 CN CN 98243392 patent/CN2344100Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272676A (en) * | 2013-05-22 | 2013-09-04 | 南通澳润建材科技有限公司 | Scatter grading device |
| CN105170463A (en) * | 2015-10-27 | 2015-12-23 | 张荣斌 | Powder selecting machine for mine |
| CN107855277A (en) * | 2017-11-17 | 2018-03-30 | 天津水泥工业设计研究院有限公司 | A kind of centripetal high-efficient powder concentrator movable vane piece and design method |
| CN107855277B (en) * | 2017-11-17 | 2023-08-25 | 天津水泥工业设计研究院有限公司 | Moving blade for centripetal efficient powder concentrator and design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |