CN2625064Y - Rotor of classifier - Google Patents
Rotor of classifier Download PDFInfo
- Publication number
- CN2625064Y CN2625064Y CN 03221822 CN03221822U CN2625064Y CN 2625064 Y CN2625064 Y CN 2625064Y CN 03221822 CN03221822 CN 03221822 CN 03221822 U CN03221822 U CN 03221822U CN 2625064 Y CN2625064 Y CN 2625064Y
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- Prior art keywords
- ring
- graded
- blade
- graded blade
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- 230000008520 organization Effects 0.000 claims description 4
- 239000000843 powder Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012216 screening Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000012054 meals Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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Abstract
The utility model discloses a classifier rotor which comprises at least two layers; wherein the upper layer is composed of an upper ring, a middle ring and an upper classification blade, and the upper classification blade is uniformly arranged between the upper ring and the middle ring; the lower layer is composed of a middle ring, a lower ring and a lower classification blade, and the lower classification blade is uniformly arranged between the middle ring and the lower ring; the lower part of the lower ring is provided with a fixed rack, and the gap between the two adjacent upper classification blades contained in the upper layer is less than that between the two adjacent lower classification blades contained in the lower layer. The classification effects of the classifier rotor on the upper part and the lower part are basically same, and the powder screening efficiency is improved.
Description
Technical field
The utility model relates to a kind of grader grading plant, especially for the grader classification rotor in the cement production process.
Background technology
At present, in grinding process, cross the grinding phenomenon in the mill, improve mill efficiency, should in time material in the mill be drawn off, select qualified fine powder, underproof meal is returned in the mill reface simultaneously by classifying equipoment in order to reduce.In this course, the classification performance of grader directly has influence on the output and the power consumption of grinding machine.Classifying equipoment commonly used has combined type powder concentrator, rotator type powder concentrator in cement production process at present.The grading plant of this two classes powder concentrator is a cage rotor.In selecting the powder process, fine powder body in the pulverized coal borne air flow by the gap between the uniform connecting rod of cage rotor excircle enter cage rotor inside, with circulated air rise enter in the cyclone separator, powder obtains sedimentation becomes finished product, the coarse dispersion in the pulverized coal borne air flow can not enter because the relative fine powder of speed is little cage rotor inside, with the connecting rod collision after drop in the meal collection cone.Because pulverized coal borne air flow is in the flow velocity difference of upper and lower part, cage rotor outside, top flow velocity maximum, bottom speed minimum, thereby the air flow rate that enters cage rotor inside is in the upper and lower part difference, this caused the particle classifying effect inconsistency, influenced grinding efficiency.
Practical fresh content
The purpose of this utility model is to provide a kind of classifier rotor, and the air flow rate that this rotor can make pulverized coal borne air flow enter internal rotor keeps identical substantially at upper and lower position, improves grinding efficiency, overcomes the deficiencies in the prior art.
For achieving the above object, the utility model contains two layers at least, the upper strata by last ring, middle ring, go up graded blade constitute, go up graded blade uniform be arranged on encircle and middle ring between, lower floor by middle ring, down ring, graded blade constitutes down, graded blade is uniform down be arranged in ring with encircle down between, the below of following ring is provided with fixed mount, and the gap between adjacent two the last graded blades that contain in the upper strata is less than the gap between adjacent two the following graded blades that contain in the lower floor.
The shape of upper and lower graded blade is v-shaped structure.
The shape of upper and lower graded blade is ellipsoidal structure.
The shape of upper and lower graded blade is the U-shaped structure.
The shape of upper and lower graded blade is slab organization, go up or down sheet shape graded blade direction is set overlaps with diametric(al), this is adjacent goes up or setting and another angled sheet shape graded blade of diametric(al) between the sheet shape graded blade down.
A sheet shape graded blade angled with diametric(al) is set between the graded blade of U-shaped structure.
The beneficial effects of the utility model are, because classifier rotor contains two layers at least, gap between adjacent two graded blades that upper and lower layer contains becomes little, big, the pulverized coal borne air flow flow velocity of classification rotor outside becomes large and small at upper and lower layer, so again because flow equals flow velocity multiply by the flow of sectional area by gap between the graded blade and be consistent substantially at the upper and lower layer of classification rotor, so the classification rotor is basic identical at the grading effect of upper and lower part.Grinding efficiency is improved.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model example structure schematic diagram.
Fig. 2 is the cutaway view of Fig. 1 along the A-A line.
Fig. 3 is the schematic diagram that is shaped as oval structure of graded blade.
Fig. 4 is the schematic diagram that is shaped as the U-shaped structure of graded blade.
Fig. 5 is the schematic diagram that is shaped as slab organization of graded blade.
Fig. 6 is the schematic diagram that the slab organization graded blade is set between the graded blade of U-shaped structure.
Ring on 1. is 2. gone up graded blade among the figure, 3. in ring, 4. descend graded blade, 5. time ring, 6. fixed mount.
The specific embodiment
Among Fig. 1, last graded blade 2 is arranged on the upper strata of classifier rotor, promptly goes up between ring 1 and the middle ring 3, and between ring 3 and the following ring 5, fixed mount 6 was arranged on down ring 5 belows during following graded blade 4 was arranged on.Because little at the air-flow velocity of classification rotor bottom, the gap that therefore is arranged between adjacent two graded blades 4 of classifier rotor lower floor is just big; The air-flow velocity on classifier rotor top is big, and the gap that therefore is arranged between adjacent two graded blades 2 on classifier rotor upper strata is just little; If the average rate of the air-flow velocity on classifier rotor upper strata is that the gap sectional area sum between all adjacent two graded blades 2 on V1, classification rotor upper strata is S1, the average rate of the air-flow velocity of classifier rotor lower floor is that the gap sectional area sum between V2, all adjacent two graded blades 4 of classifier rotor lower floor is S2, then should guarantee V1S1=V2S2.
It is respectively oval and U type structure that Fig. 3 and Fig. 4 show graded blade of the present utility model.In like manner described, the gap between the adjacent graded blade in upper strata is less than the gap between the adjacent graded blade of lower floor.
When Fig. 5 and Fig. 6 show graded blade of the present utility model and be sheet shape and U-shaped respectively, between it, be provided with angled another sheet shape blade, this angle of diameter and be less than or equal to 90 degree greater than zero degree.In like manner described, gap between the sheet shape blade that overlaps with diametric(al) on upper strata and the sheet shape blade adjacent and that diametric(al) is angled, this gap is less than the sheet shape blade that overlaps with diametric(al) of lower floor and the gap between the sheet shape blade adjacent and that diametric(al) is angled; Gap between the U type graded blade on upper strata and another sheet shape blade adjacent and that diameter is angled, this gap is less than the U type graded blade of lower floor and the gap between the sheet shape blade adjacent and that diametric(al) is angled.
Above-described only is preferred implementation of the present utility model.To those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. classifier rotor, it is characterized in that: contain two layers at least, the upper strata by last ring, middle ring, go up graded blade constitute, go up graded blade uniform be arranged on encircle and middle ring between, lower floor by middle ring, down ring, graded blade constitutes down, graded blade is uniform down be arranged in ring with encircle down between, the below of following ring is provided with fixed mount, and the gap between adjacent two the last graded blades that contain in the upper strata is less than the gap between adjacent two the following graded blades that contain in the lower floor.
2. classifier rotor according to claim 1 is characterized in that: the shape of described upper and lower graded blade is v-shaped structure.
3. classifier rotor according to claim 1 is characterized in that: the shape of described upper and lower graded blade is ellipsoidal structure.
4. classifier rotor according to claim 1 is characterized in that: the shape of described upper and lower graded blade is the U-shaped structure.
5. classifier rotor according to claim 1, it is characterized in that: the shape of described upper and lower graded blade is slab organization, go up or down sheet shape graded blade direction is set overlaps with diametric(al), this is adjacent goes up or setting and another angled sheet shape graded blade of diametric(al) between the sheet shape graded blade down.
6. classifier rotor according to claim 3 is characterized in that: be provided with and the angled sheet shape graded blade of diametric(al) between the graded blade of described U-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221822 CN2625064Y (en) | 2003-05-16 | 2003-05-16 | Rotor of classifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221822 CN2625064Y (en) | 2003-05-16 | 2003-05-16 | Rotor of classifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2625064Y true CN2625064Y (en) | 2004-07-14 |
Family
ID=34244876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03221822 Expired - Fee Related CN2625064Y (en) | 2003-05-16 | 2003-05-16 | Rotor of classifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2625064Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550024A (en) * | 2015-01-29 | 2015-04-29 | 盐城市富仕环保科技有限公司 | Multi-level sorting unit of powder concentrator |
-
2003
- 2003-05-16 CN CN 03221822 patent/CN2625064Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550024A (en) * | 2015-01-29 | 2015-04-29 | 盐城市富仕环保科技有限公司 | Multi-level sorting unit of powder concentrator |
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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 |