CN2356758Y - Pneumatic airflow classifier - Google Patents
Pneumatic airflow classifier Download PDFInfo
- Publication number
- CN2356758Y CN2356758Y CN 99205404 CN99205404U CN2356758Y CN 2356758 Y CN2356758 Y CN 2356758Y CN 99205404 CN99205404 CN 99205404 CN 99205404 U CN99205404 U CN 99205404U CN 2356758 Y CN2356758 Y CN 2356758Y
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- CN
- China
- Prior art keywords
- air
- impeller
- air impeller
- grading room
- pneumatic
- 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 pneumatic airflow classifier, which is characterized in that the utility model takes high-pressure air as power; a pneumatic impeller is arranged at the uppermost end of a rotating shaft; a gas-lubricated bearing, labyrinth seal and a grading wheel are successively arranged on the rotating shaft under the pneumatic impeller; the classifying wheel is positioned in a classifying room; a nozzle of a high-pressure air source is arranged at the circumference of the pneumatic impeller; a valve mouth aims at a vane of the pneumatic impeller; when the utility model works, high-pressure air is sprayed to the pneumatic impeller from the nozzle to drive the classifying wheel to rotate in high speed via the rotating shaft, obtaining the goal of the classification of powder material. The utility model has the advantages of high rotating speed and high classifying rate, and is especially suitable for the classification of thin powder material or the powder material with small range of particle size.
Description
The utility model relates to a kind of gas flow sizing machine that is used for the classification powder material, and particularly relating to a kind of is the pneumatic gas flow sizing machine of driving force with the Compressed Gas.This pneumatic gas flow sizing machine is driving force with the Compressed Gas, drives the rotating shaft rotation, and the air current classifying that drives the installation of the rotating shaft other end is taken turns rotation at a high speed to finish the classification of powder material.
For gas flow sizing machine, a large amount of research and report have been arranged.Existing gas flow sizing machine has two classes, and a class is the gas flow sizing machine of movement-less part, and another kind of is the gas flow sizing machine that moving component is arranged.The existing gas flow sizing machine that moving component arranged all is to adopt motor to make to drive power, drive air current classifying wheel rotation and finish the classification of powder material, this gas flow sizing machine is owing to adopt motor as driving power, so its rotating speed can be too not high, except classification efficiency is low, also can only satisfy the classification of the powder material of general requirement, for the classification of thinner material or the classification of the narrower material of particle size distribution requirement, because its rotating speed is too low, then can't meet the demands.
It is a kind of high-revolving that the utility model purpose is to provide, with the Compressed Gas is power, drive the rotation and reach the pneumatic gas flow sizing machine of classification powder material at a high speed of pneumatic classification wheel, this pneumatic gas flow sizing machine classification efficiency height, easy to operate is specially adapted to the grader of the narrower powder material classification of fine powder material more or particle size.
Embodiment of the present utility model is as follows:
The pneumatic gas flow sizing machine that the utility model provides comprises power source, bearing, labyrinth
Sealing, grading wheel and grading room, it is characterized in that: power source is a high-pressure air source, form and also comprise air impeller and high-pressure air source nozzle, air impeller is installed in the top of rotating shaft, gas bearing is installed in the rotating shaft under the air impeller successively, the gentle flow point step cone of labyrinth seal, the air current classifying wheel is arranged in grading room, one or more taper shapes or leaf grating form height pressurized air source nozzle are installed in all sides of air impeller, its mouth mouth is aimed at the blade of air impeller, grading room top one side is provided with the powder material inlet, opposite side is provided with the secondary air mouth, secondary air mouth top grading room sidewall is provided with the fine powder outlet, secondary air mouth below grading room sidewall is provided with air inlet three times, and the grading room bottom is provided with the meal outlet, and the compressed gas that the last volute upper end that is positioned at the air impeller top is provided with after the expansion exports; The pneumatic classification wheel is cage grid formula or centrifugal pneumatic classification wheel; Air impeller is axial-flow type air impeller or radial inflow air impeller or centrifugal air impeller; Gas bearing is static pressure type or dynamic pressure type or active and static pressure mixed type gas bearing.
Pneumatic gas flow sizing machine of the present utility model can use separately, also can with the airslide disintegrating mill use that connects together, realize that pulverizing, the classification of powder material once finished.
The pneumatic gas flow sizing machine that the utility model provides is compared with general gas flow sizing machine, has the following advantages:
1) since the utility model with Compressed Gas as driving force, and with the large and small rotating speed of regulating of Compressed Gas, thus easy to adjust, adjustable range is big, thereby the scope of application broad of the pneumatic classification machine that provides of the utility model;
2) the pneumatic classification machine rotating speed height that provides owing to the utility model, classification rate height, the classification of the powder material that more suitable fine powder material or particle size range are narrower;
3) be gas bearing owing to what adopt, bearing does not have wearing and tearing, and service life is longer.
Further describe the utility model below in conjunction with drawings and Examples:
Accompanying drawing 1 is a structural representation of the present utility model.
Air impeller 1 high-pressure air source nozzle 2 gas bearing 3
Labyrinth seal air supply opening D powder material inlet E fine powder outlet F
Three air inlet G of secondary air mouth G fine powder outlet I
The pneumatic gas flow sizing machine structural representation that Fig. 1 provides for the utility model, know by figure, the pneumatic gas flow sizing machine that the utility model provides, comprise power source, bearing, labyrinth seal, grading wheel and grading room, it is characterized in that: power source is the high-pressure air source (not shown), form and also comprise air impeller 1 and high-pressure air source nozzle 2, air impeller 1 is installed in the top of rotating shaft 8, gas bearing 3 is installed in the rotating shaft 8 under the air impeller 1 successively, labyrinth seal 4 and air current classifying wheel 5, air current classifying wheel 5 is arranged in grading room 6, one or more taper shapes or leaf grating form height pressurized air source nozzle 2 are installed in all sides of air impeller 1, its mouth mouth is aimed at the blade of air impeller 1, the compressed air of high-pressure air source sprays to air impeller 2 via nozzle 2, the side of gas bearing 3 is provided with bearing air supply opening C, the side of labyrinth seal 4 is provided with labyrinth seal air supply opening D, grading room 6 middle parts one side is provided with powder material inlet E, opposite side is provided with secondary air mouth G, the sidewall of secondary air mouth G top grading room 6 is provided with fine powder outlet F, the sidewall of secondary air mouth G below grading room 6 is provided with air inlet H three times, grading room 6 bottoms are provided with meal outlet I, and the compressed gas that the last volute upper end that is positioned at air impeller 1 top is provided with after the expansion exports B; Pneumatic classification wheel 6 is cage grid formulas
Or centrifugal pneumatic classification wheel; Air impeller 1 is axial-flow type air impeller or radial inflow air impeller or centrifugal air impeller; Gas bearing 4 is static pressure type or dynamic pressure type or active and static pressure mixed type gas bearing.
Pneumatic gas flow sizing machine of the present utility model can use separately, also can with the airslide disintegrating mill use that connects together, realize that pulverizing, the classification of powder material once finished.
Claims (4)
1. pneumatic gas flow sizing machine, comprise power source, bearing, labyrinth seal, grading wheel and grading room, it is characterized in that: power source is a high-pressure air source, form and also comprise air impeller and high-pressure air source nozzle, air impeller is installed in the top of rotating shaft, gas bearing is installed in the rotating shaft under the air impeller successively, the gentle flow point step cone of labyrinth seal, the air current classifying wheel is arranged in grading room, one or more taper shapes or leaf grating form height pressurized air source nozzle are installed in all sides of air impeller, its mouth mouth is aimed at the blade of air impeller, grading room top one side is provided with the powder material inlet, opposite side is provided with the secondary air mouth, secondary air mouth top grading room sidewall is provided with the fine powder outlet, secondary air mouth below grading room sidewall is provided with air inlet three times, grading room bottom is provided with the grading room bottom and is provided with the meal outlet, and the compressed gas that the last volute upper end that is positioned at the air impeller top is provided with after the expansion exports.
2. press claims 1 described pneumatic gas flow sizing machine, it is characterized in that described air current classifying wheel is cage grid formula or centrifugal air current classifying wheel;
3. press claims 1 described pneumatic gas flow sizing machine, it is characterized in that described air impeller is axial-flow type air impeller or radial inflow air impeller or centrifugal air impeller;
4. press claims 1 described pneumatic gas flow sizing machine, it is characterized in that described gas bearing is static pressure type or dynamic pressure type or active and static pressure mixed type gas bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99205404 CN2356758Y (en) | 1999-03-17 | 1999-03-17 | Pneumatic airflow classifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99205404 CN2356758Y (en) | 1999-03-17 | 1999-03-17 | Pneumatic airflow classifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2356758Y true CN2356758Y (en) | 2000-01-05 |
Family
ID=33999973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99205404 Expired - Fee Related CN2356758Y (en) | 1999-03-17 | 1999-03-17 | Pneumatic airflow classifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2356758Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226440A (en) * | 2013-06-08 | 2014-12-24 | 昆山市密友装备制造有限责任公司 | High-efficiency energy-saving airflow crusher |
| CN108031649A (en) * | 2018-01-25 | 2018-05-15 | 苏州思美特表面材料科技有限公司 | A kind of method of metal dust classification |
-
1999
- 1999-03-17 CN CN 99205404 patent/CN2356758Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226440A (en) * | 2013-06-08 | 2014-12-24 | 昆山市密友装备制造有限责任公司 | High-efficiency energy-saving airflow crusher |
| CN104226440B (en) * | 2013-06-08 | 2016-08-31 | 江苏密友粉体新装备制造有限公司 | Energy-efficient air-flow pulverizer |
| CN108031649A (en) * | 2018-01-25 | 2018-05-15 | 苏州思美特表面材料科技有限公司 | A kind of method of metal dust classification |
| CN108031649B (en) * | 2018-01-25 | 2020-02-07 | 苏州思美特表面材料科技有限公司 | Method for grading metal powder |
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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 |