CN201026463Y - Single-cylinder internal overflow silicon carbide micro powder grading equipment - Google Patents
Single-cylinder internal overflow silicon carbide micro powder grading equipment Download PDFInfo
- Publication number
- CN201026463Y CN201026463Y CNU2007202003090U CN200720200309U CN201026463Y CN 201026463 Y CN201026463 Y CN 201026463Y CN U2007202003090 U CNU2007202003090 U CN U2007202003090U CN 200720200309 U CN200720200309 U CN 200720200309U CN 201026463 Y CN201026463 Y CN 201026463Y
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- China
- Prior art keywords
- silicon carbide
- cylinder
- overflow
- classification
- carbide micro
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- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic classifying device for powder which is a classifying device for overflow silicon carbide powder in a single cylinder and comprises a cylindrical upper part and a lower part which is a conical classifying jar, and an upper part in the classifying jar is provided with a conical overflow hopper. The utility model is characterized by concentrated particles, high degree of accuracy, no dead corners and high classifying precision.
Description
Technical field
The utility model relates to a kind of micro mist hydraulic classification equipment, i.e. overflow silicon carbide micro-powder classifying equipoment in the single cylinder.
Background skill book
In prior art, the abrasive material that is narrower than 63 microns adopts the production of micro mist hydraulic classification equipment usually.Classifying equipoment comprises that top is that cylindrical, bottom is conical classification cylinder (or claiming classification bucket), the tapering of classification cylinder tapered segment is 40 °-55 °, the height of column part is the 300-900 millimeter, adopt outer press over system to separate, its shortcoming is: 1, traditional micro-powder graded equipment adopts excessive diverting flow, the diameter of classification cylinder is generally between the 1200-2000 millimeter, the extremely difficult control of the degree of balance, be prone to the bias current phenomenon in the classification, influence effectiveness of classification, and overflow launder has material to retain the dead angle outside, occurs large granule easily.2, this kind equipment water consumption is bigger.3, the drum part is highly lower, and it is short to form the laminar flow time, and hydraulic pressure may cause granularity to mix mutually as fluctuation is arranged slightly, bulky grain occurs.4, the cone angle of awl barrel section is bigger, and the dead angle is arranged in the batch can, and thick, fines skewness are easily assembled, and also influence effectiveness of classification.
The utility model content
The purpose of this utility model is to provide overflow silicon carbide micro-powder classifying equipoment in the better single cylinder of a kind of grading effect at above-mentioned deficiency.
Technical solution of the present utility model is: overflow silicon carbide micro-powder classifying equipoment comprises that top is that cylindrical, bottom is conical classification cylinder in the single cylinder, and classification cylinder internal upper part is provided with overflow downcomer (being lower than the overfall of classification cylinder cylinder body).Overflow downcomer is preferably conical overflow downcomer.
The cylindrical part length of classification cylinder is the 2300-2600 millimeter, is preferably 2500 millimeters (1600 millimeters of ￠).The coning angle of the conical portion of classification cylinder is 13 °-17 °, is preferably 15 °.
The utility model has the advantages that: 1, increased overflow downcomer in the cylinder, form grading inside overflow, less because of the overflow diameter of overflow downcomer, the degree of balance is easy to control, and slip can evenly be trickled around overfall, thereby guaranteed partition size, during grain was trooped, degree of accuracy height was not prone to bulky grain, granularity adjustment simultaneously is also convenient, can surmise the distribution value by the customer requirements adjustment at any time.2, classification cylinder drum part highly increases the millimeter to 2300-2600, and laminar flow distribution is stable, and the effectiveness of classification height is during grain is trooped.3, classification cylinder awl barrel section tapering is set at 13 ° of-17 ° of degree.Through test of many times, tapering slip when this scope can evenly distribute, and swirl velocity is fast, stays the no dead angle of material in the cylinder.Material cylinder bottom angle is little, and change in flow is rapid behind the adjustment flow, can make slip obtain certain impulse force, makes the thickness material evenly distribute, and because angle is little, slip is difficult for attached on the casing wall, and no dead angle is improved effectiveness of classification.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Accompanying drawing is the utility model structure diagram.
The specific embodiment
Referring to accompanying drawing, overflow silicon carbide micro-powder classifying equipoment comprises that top is that cylindrical, bottom is conical classification cylinder 1 in the single cylinder, 1600 millimeters of classification cylinder 1 diameters.Classification cylinder 1 internal upper part is provided with conical overflow downcomer 2.800 millimeters of the overflow diameter of conical overflow downcomer 2 highly are 500 millimeters.The shape of overflow downcomer 2 is not limited thereto.
Drum 3 (cylindrical part) length of classification cylinder 1 is 2500 millimeters.Because of slip when the classification, at the classifying equipoment cone partly is to be in the rotation shape to forward spin flow, fully mix to reach slip, just begin laminar flow to occur and arrive barrel portion according to the granularity difference, just real classification process, through test of many times, height is best in the time of 2500 millimeters in this process, can guarantee that each bed of material granularity is the most concentrated, can guarantee that again grading time is the shortest.
The cone angle alpha of the awl bucket 4 (conical portion) of classification cylinder 1 is 15 °.Material cylinder bottom angle is little, and change in flow is rapid behind the adjustment flow, can make slip obtain certain impulse force, makes the thickness material evenly distribute, and because angle is little, slip is difficult for attached on the casing wall, and no dead angle is improved effectiveness of classification.
Claims (6)
1. overflow silicon carbide micro-powder classifying equipoment in the single cylinder comprises that top is that cylindrical, bottom is a conical classification cylinder (1), is characterized in that classification cylinder (1) internal upper part is provided with overflow downcomer (2).
2. according to overflow silicon carbide micro-powder classifying equipoment in the described single cylinder of claim 1, it is characterized in that overflow downcomer (2) is for conical.
3. according to overflow silicon carbide micro-powder classifying equipoment in claim 1 or the 2 described single cylinders, the cylindrical part length that it is characterized in that classification cylinder (1) is the 2300-2600 millimeter.
4. according to overflow silicon carbide micro-powder classifying equipoment in the described single cylinder of claim 3, the cylindrical part length that it is characterized in that classification cylinder (1) is 2500 millimeters.
5. according to overflow silicon carbide micro-powder classifying equipoment in the described single cylinder of claim 3, the coning angle that it is characterized in that the conical portion of classification cylinder (1) is 130 °-170 °.
6. according to overflow silicon carbide micro-powder classifying equipoment in the described single cylinder of claim 5, the coning angle that it is characterized in that the conical portion of classification cylinder (1) is 150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007202003090U CN201026463Y (en) | 2007-04-28 | 2007-04-28 | Single-cylinder internal overflow silicon carbide micro powder grading equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007202003090U CN201026463Y (en) | 2007-04-28 | 2007-04-28 | Single-cylinder internal overflow silicon carbide micro powder grading equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201026463Y true CN201026463Y (en) | 2008-02-27 |
Family
ID=39130664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007202003090U Expired - Fee Related CN201026463Y (en) | 2007-04-28 | 2007-04-28 | Single-cylinder internal overflow silicon carbide micro powder grading equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201026463Y (en) |
-
2007
- 2007-04-28 CN CNU2007202003090U patent/CN201026463Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20150428 |
|
| EXPY | Termination of patent right or utility model |