CN2313676Y - Horizontal turbine superfine powder blow-sorting apparatus - Google Patents
Horizontal turbine superfine powder blow-sorting apparatus Download PDFInfo
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- CN2313676Y CN2313676Y CN 97242729 CN97242729U CN2313676Y CN 2313676 Y CN2313676 Y CN 2313676Y CN 97242729 CN97242729 CN 97242729 CN 97242729 U CN97242729 U CN 97242729U CN 2313676 Y CN2313676 Y CN 2313676Y
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- turbine
- grading room
- sorting
- classification
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Abstract
The utility model discloses a horizontal turbine superfine powder airflow-sorting apparatus, which is composed of a turbine, a sorting chamber, the sorting chamber of the rotational flow, a feeder, an air inlet pipe, and a discharge valve. The sorting chamber adopts an oblong mechanism; the internal side of the sorting chamber is provided with a horizontal turbine, and the surface of the cylindrical turbine is an arc in a downwards concave type. The proportion of the width of the sorting chamber and the width (B/H) of the turbine is 1.0 to 1.4, and the proportion of the length of the sorting chamber and the diameter (L/D) of the turbine is 3 to 6. The horizontal turbine superfine powder airflow-sorting apparatus of the utility model can make that the airflow velocity on the periphery of the turbine is more even, and the axial sorting acting force of the turbine is substantially the same. Accordingly, the distribution of the sorted granularity of the powder is more uniform; the sorting particle diameter is more superfine, and the precision can be over 2.0.
Description
The utility model relates to a kind of turbine ultra micro powder airflow classification device, particularly relates to a kind of horizontal scroll ultra micro powder airflow classification device.
Existing turbine ultra micro powder airflow classification device, its grading room is generally square structure, in establish cylindrical or conical turbine (as Chinese patent CN2186119Y).Because the airflow field that the air-flow that rises forms in grading room is uneven distribution around turbine, grading power is inhomogeneous, thereby influences effectiveness of classification and classification efficiency, makes that the Granularity Distribution after the classification is inhomogeneous.
The purpose of this utility model is to provide a kind of classification efficiency height, and can improve the horizontal scroll ultra micro powder airflow classification device of effectiveness of classification.
The purpose of this utility model is to provide a kind of classification efficiency height, and can further improve the horizontal scroll ultra micro powder airflow classification device of effectiveness of classification.
Task of the present utility model is achieved in that the horizontal scroll ultra micro powder airflow classification device of being made up of turbine, grading room, cyclone classification chamber, feeder, air inlet pipe and blow-off valve.Grading room adopts rectangle mechanism, and the inside is provided with a horizontal scroll, and the surface of cylindrical turbine is the up concave type camber line.Grading room width/turbine width (B/H) ratio is 1.0～1.4, and grading room length/turbine diameter (L/D) ratio is 3～6.Powder by feeder adds in the surface of rectangle structure grading room is up concave type camber line turbine, carries out classification to powder.The meal that falls is then discharged by blow-off valve.Effectiveness of classification can reach more than 2.0,
Further task of the present utility model is finished like this: be the horizontal scroll ultra micro powder airflow classification device that cylindrical turbine, rectangle grading room, cyclone classification chamber, feeder, air inlet pipe and the blow-off valve of up concave type camber line are formed by the surface.Air inlet pipe is arranged on the cyclone classification chamber with tangential direction, is provided with a screen between grading room and the cyclone classification chamber.The width/diameter of turbine the best (H/D) ratio is 0.6～1.5, and turbine outlet diameter/turbine diameter (d/D) ratio is 0.4～0.8.Powder by feeder adds under the effect of tangential admission pipe rising eddy flow, carries out airflow screening in the cyclone classification chamber, isolate the fine powder of carrying secretly in the sedimentation meal, and rise with the air-flow eddy flow.The cyclonic current that rises becomes even air-flow vertically upward by behind the screen, in the turbine of rectangle structure grading room, powder is carried out classification.The meal that falls is then discharged by blow-off valve.
The utility model has reduced the influence of wall effect when air-flow rises owing to adopted the grading room of rectangle structure, makes that air velocity around the turbine is more even, the powder granularity after the classification is more evenly distributed;
Adopt the turbine of up concave type camber line, make the axially staged active force of turbine roughly the same, can improve the homogenising of partition size, ultra-fineization of Cut size;
Optimally sized chamber length/turbine diameter (L/D) ratio 3～6 that adopts has increased the space in the grading room, has further reduced the influence of grading room wall to air-flow;
Be arranged on the screen between grading room and the cyclone classification chamber, make the cyclonic current of rising become even air-flow vertically upward, the flow field is more become steadily, further improve effectiveness of classification;
Adopted best grading room width/turbine width (B/H) ratio 1.0～1.4, reduced the grading room relative width, made Velocity Profiles seem more steady;
The tangential air inlet pipe that is provided with can be carried out twice air-flow screening to powder, improves classification efficiency.
Below, in conjunction with the accompanying drawings, introduce the utility model in detail.
Accompanying drawing 1 is a structural representation of the present utility model
Accompanying drawing 2 is the schematic diagram of the utility model turbine
Embodiment one
The horizontal scroll ultra micro powder airflow classification device of forming by turbine 2, grading room 1, cyclone classification chamber 6, feeder 5, air inlet pipe 7 and blow-off valve 8.Grading room 1 adopts rectangle mechanism, and the inside is provided with a horizontal scroll 2, and the surface of cylindrical turbine is the up concave type camber line.Grading room width/turbine width (B/H) ratio is 1.0～1.4, and grading room length/turbine diameter (L/D) ratio is 3～6.Powder by feeder adds in the surface of rectangle structure grading room is up concave type camber line turbine, carries out classification to powder.Classified powder is discharged by turbine outlet, enters next group cyclone classifier classification once more.The meal that falls is then discharged by blow-off valve.Effectiveness of classification can reach more than 2.0,
Embodiment two
The horizontal scroll ultra micro powder airflow classification device of forming by turbine 2, grading room 1, cyclone classification chamber 6, feeder 5, air inlet pipe 7 and blow-off valve 8.Grading room 1 adopts rectangle mechanism, and the inside is provided with a horizontal scroll 2, and the surface of cylindrical turbine is the up concave type camber line.Grading room width/turbine width (B/H) ratio is 1.0～1.4, and grading room length/turbine diameter (L/D) ratio is 3～6.Air inlet pipe 7 is arranged on the cyclone classification chamber 6 with tangential direction, is provided with a screen 4 between grading room 1 and the cyclone classification chamber 6.When horizontal scroll ultra micro powder airflow classification device was worked, tangential air inlet pipe 7 of installing tangentially entered air-flow and forms the cyclonic current rising.Powder material by feeder 5 enters rises with the air-flow eddy flow, and straight line rises to grading room 1 behind screen 4.Fine powder enters turbine inside with air-flow and discharge grading room 1 after turbine 2 classification.The powder of discharging grading room 1 can obtain the superfine powder of different brackets after the multistage cyclone classifier.Effectiveness of classification can reach more than 1.8.Meal then drops in the cyclone classification chamber 6, and under the air-flow effect that eddy flow rises, the powder that falls is carried out airflow screening once more, makes fine powder in the meal return grading room 1 and carries out classification again, and repeat said process.The width/diameter of turbine the best (H/D) ratio is 0.6～1.5, and turbine outlet diameter/turbine diameter (d/D) ratio is 0.4～0.8.Angle tangentially is set is set to 10 °～45 ° usually of air inlet pipe 7.
Claims (4)
1. horizontal scroll ultra micro powder airflow classification device of forming by turbine (2), grading room (1), cyclone classification chamber (6), feeder (5), air inlet pipe (7) and blow-off valve (8), it is characterized in that described grading room (1) adopts rectangle mechanism, the inside is provided with a horizontal scroll (2), the surface of cylindrical turbine (2) is the up concave type camber line, grading room width/turbine width (B/H) ratio is 1.0～1.4, and grading room length/turbine diameter (L/D) ratio is 3～6.
2. turbine ultra micro powder airflow classification device according to claim 1 is characterized in that described air inlet pipe (7) is arranged on the cyclone classification chamber (6) with tangential direction, is provided with a screen (4) between grading room (1) and cyclone classification chamber (6).
3. according to claim 1,2 described turbine ultra micro powder airflow classification devices, it is characterized in that described turbine (2), its best width/diameter (H/D) ratio is 0.6～1.5, and turbine outlet diameter/turbine diameter (d/D) ratio is 0.4～0.8.
4. according to claim 1,2 described turbine ultra micro powder airflow classification devices, it is characterized in that the angle that tangentially is provided with of described air inlet pipe (7) is 10 °～45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242729 CN2313676Y (en) | 1997-11-26 | 1997-11-26 | Horizontal turbine superfine powder blow-sorting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242729 CN2313676Y (en) | 1997-11-26 | 1997-11-26 | Horizontal turbine superfine powder blow-sorting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2313676Y true CN2313676Y (en) | 1999-04-14 |
Family
ID=33951871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97242729 Expired - Fee Related CN2313676Y (en) | 1997-11-26 | 1997-11-26 | Horizontal turbine superfine powder blow-sorting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2313676Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773428A (en) * | 2019-10-28 | 2020-02-11 | 河北科技大学 | Powder selecting machine |
-
1997
- 1997-11-26 CN CN 97242729 patent/CN2313676Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773428A (en) * | 2019-10-28 | 2020-02-11 | 河北科技大学 | Powder selecting machine |
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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 |