CN203886632U - Air-flow mill for powder crushing - Google Patents
Air-flow mill for powder crushing Download PDFInfo
- Publication number
- CN203886632U CN203886632U CN201320775220.2U CN201320775220U CN203886632U CN 203886632 U CN203886632 U CN 203886632U CN 201320775220 U CN201320775220 U CN 201320775220U CN 203886632 U CN203886632 U CN 203886632U
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- China
- Prior art keywords
- grinding chamber
- powder
- air
- motor
- cage
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- 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 discloses an air-flow mill for powder crushing. The air-flow mill comprises a grinding chamber, wherein a separation cage is arranged above the grinding chamber; a cage motor is arranged on the separation cage; a feeder is arranged at the upper end of the grinding chamber and extends downwards into the grinding chamber; flow dividing nozzles which tilt upwards are arranged at the lower end of the grinding chamber. Under the condition that air pressure is stably fed, the relative quantity of the weight of powder in the grinding chamber can be obtained through the monitoring on the load output by a motor, so that the fixation of the grinding chamber is achieved, the vibration of the grinding chamber is reduced, and a working system is well stabilized.
Description
Technical field
The utility model relates to airflow milling field, specifically belongs to a kind of by powder pulverizing powder pulverizing airflow milling.
Background technology
Airflow milling is a kind of powder disintegrating apparatus, various metals and non-metal powder can be crushed to below micron order, is widely used in the industrial circle such as metal powder metallurgy, pharmacy.Its principle is to utilize gas-pressurized to spray from multiple special nozzles to form high velocity air, by adjusting the direction of nozzle, high velocity air a certain region in space is clashed into and form complicated eddy current, the material that requirement is pulverized can move and mutually clash into and reach broken effect with powder after being added into high velocity air.Whole powder crushing process carries out in grinding chamber, obtains by mouse wheel apparatus (also claiming selection by winnowing wheel) sorting the powder that requires granularity.The broken degree of powder conventionally with the shape of the pressure of gases at high pressure, nozzle with by comminuting matter the quantity in grinding chamber relevant.In actual production, pressure and nozzle be shaped as preset parameter, general airflow milling is by controlling the speed that is fed into of being controlled material in grinding chamber by the weight of comminuting matter, thereby keeps the stable state of grinding.Owing to cannot obtaining the weight of actual powder in grinding chamber, a gang of with the method that weighs whole grinding chamber and part feed system calculate the weight of powder, while weighing for grinding chamber, grinding chamber is in dotted state, in the impact of high pressure draught, whole grinding chamber is contained in vibration, and the deviation of weighing is larger.Outer because the weight of powder is relatively little with respect to the weight of grinding chamber and feed system, further strengthen the deviation between measured value and actual value.This patent is being introduced another kind of control method and is realizing the stable state of Gas grinding work.
Utility model content
?the purpose of this utility model is to provide a kind of powder pulverizing airflow milling, the monitoring of the motor output loads passing through under the condition of supplying with at stable air pressure can obtain grinding chamber in the relative quantity of powder weight, realize the fixing of grinding chamber, reduce the vibration of grinding chamber, better steady operation system.
The technical solution of the utility model is as follows:
A kind of powder pulverizing airflow milling, includes grinding chamber, and grinding chamber top is sorting mouse cage, on sorting mouse cage, squirrel-cage motor is installed, grinding chamber upper end is provided with feeder, and feeder stretches in grinding chamber down, and grinding chamber lower end is provided with point flow nozzle obliquely.
Between described feeder and squirrel-cage motor, be connected with feed control.
Mouse cage device is constantly subject to the shock of air-flow and powder in assorting room, causes the load of the motor that drives the rotation of mouse cage device constantly to change.Drive the rotation of mouse cage device the load W of motor (hereinafter to be referred as motor) total=load W powder that load W gas+selection by winnowing powder that motor idle running load W sky+air pressure causes causes.In the time inputting the stable gas pressure of grinding chamber, W gas and W powder are all functions of powder weight in grinding chamber, so for same material, the monitoring of the motor output loads passing through under the condition of supplying with at stable air pressure can obtain grinding chamber in the relative quantity of powder weight, realize the fixing of grinding chamber, reduce the vibration of grinding chamber, better steady operation system.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Referring to accompanying drawing, a kind of powder pulverizing airflow milling, include grinding chamber 1, grinding chamber 1 top is sorting mouse cage 2, squirrel-cage motor 3 is installed on sorting mouse cage 2, and grinding chamber 1 upper end is provided with feeder 4, and feeder 4 stretches in grinding chamber 1 down, grinding chamber 1 lower end is provided with point flow nozzle 5 obliquely, between feeder 4 and squirrel-cage motor 3, is connected with feed control 6.
The duty that illustrated its feature of method of this patent is carried out the control motor of the mouse cage device in airflow milling monitors to regulate the feeding speed of material to grinding chamber.
This patent is characterised in that the grinding chamber of airflow milling is in non-dotted state, and its duty is more stable.
Claims (2)
1. a powder pulverizing airflow milling, includes grinding chamber, it is characterized in that, grinding chamber top, for sorting mouse cage, is provided with squirrel-cage motor on sorting mouse cage, grinding chamber upper end is provided with feeder, feeder stretches in grinding chamber down, and grinding chamber lower end is provided with point flow nozzle obliquely.
2. powder pulverizing airflow milling according to claim 1, is characterized in that, between described feeder and squirrel-cage motor, is connected with feed control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775220.2U CN203886632U (en) | 2013-11-28 | 2013-11-28 | Air-flow mill for powder crushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775220.2U CN203886632U (en) | 2013-11-28 | 2013-11-28 | Air-flow mill for powder crushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203886632U true CN203886632U (en) | 2014-10-22 |
Family
ID=51713080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320775220.2U Expired - Fee Related CN203886632U (en) | 2013-11-28 | 2013-11-28 | Air-flow mill for powder crushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203886632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115846016A (en) * | 2022-12-08 | 2023-03-28 | 徐州科建环保科技有限公司 | Jet mill and grinding method for preparing high-activity steel slag micro powder from waste steel slag |
-
2013
- 2013-11-28 CN CN201320775220.2U patent/CN203886632U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115846016A (en) * | 2022-12-08 | 2023-03-28 | 徐州科建环保科技有限公司 | Jet mill and grinding method for preparing high-activity steel slag micro powder from waste steel slag |
| CN115846016B (en) * | 2022-12-08 | 2023-09-08 | 徐州科建环保科技有限公司 | Air flow mill and grinding method for preparing high-activity steel slag micro powder from waste steel slag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 237000 four longitudinal road, Lu'an economic and Technological Development Zone, Anhui Patentee after: ANHUI HANHAI NEW MATERIAL CO., LTD. Address before: 237000 four longitudinal road, Lu'an economic and Technological Development Zone, Anhui Patentee before: Anhui Province big desert new material Co., Ltd |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20191128 |